chore: bump floret-kit submodule to latest (component superset)

Adopt floret-kit main @ 566caf4, picking up the grown GroupedRow / OptionPicker / CollapsingScaffold family superset. App compiles and unit tests pass against it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -21,6 +21,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Setup Java
         uses: actions/setup-java@v4

.gitea/workflows/release.yaml

@@ -15,6 +15,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Setup Java
         uses: actions/setup-java@v4
@@ -73,6 +75,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Setup Java
         uses: actions/setup-java@v4
@@ -225,7 +229,7 @@ jobs:
           if [ -z "$SAFE_REF_NAME" ]; then
             SAFE_REF_NAME="${GITHUB_SHA:-manual}"
           fi
-          cp app/build/outputs/apk/release/app-release.apk "fdroid/repo/floret_${SAFE_REF_NAME}.apk"
+          cp app/build/outputs/apk/release/app-release.apk "fdroid/repo/agendula_${SAFE_REF_NAME}.apk"
 
       - name: Copy metadata to F-Droid repo
         run: |
@@ -248,7 +252,7 @@ jobs:
           if [ ! -s /tmp/changelog.txt ]; then
             echo "See CHANGELOG.md for $VERSION." > /tmp/changelog.txt
           fi
-          CL_DIR="fdroid/metadata/de.jeanlucmakiola.floret/en-US/changelogs"
+          CL_DIR="fdroid/metadata/de.jeanlucmakiola.agendula/en-US/changelogs"
           mkdir -p "$CL_DIR"
           cp /tmp/changelog.txt "$CL_DIR/${VERSION_CODE}.txt"
           echo "Wrote $CL_DIR/${VERSION_CODE}.txt"
@@ -322,6 +326,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Extract changelog section for this tag
         run: |

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "floret-kit"]
+	path = floret-kit
+	url = https://gitea.jeanlucmakiola.de/makiolaj/floret-kit.git

CHANGELOG.md

@@ -6,6 +6,56 @@ the source of truth for version codes (see Calendula's `docs/RELEASING.md`).
 
 ## [Unreleased]
 
+### Added
+- M5 reminders onboarding & polish: a one-time reminder onboarding step after the
+  provider grant explains that Agendula delivers due reminders itself and requests
+  `POST_NOTIFICATIONS` (API 33+). A new **Settings** screen (gear on the lists
+  overview), structured after Calendula as a category hub with sliding sub-screens
+  (`CollapsingScaffold` + grouped category rows + full-screen `OptionPicker`):
+  an About card, **Appearance** (theme, dynamic colour), **Task form** (which
+  optional edit-form fields show by default, default list, the add-a-subtask-row
+  opt-out), and **Reminders** (a master enable switch that re-requests the
+  notification permission, a "when to remind" default offset, and — on Android 12
+  only — an exact-alarm status row that deep-links to system settings).
+- The reminders master switch gates the whole engine: turning it off clears every
+  scheduled alarm and suppresses any that fire.
+- Expressive top-bar actions: a reusable `ShapedActionButton` wraps an action icon
+  in a tonal M3 Expressive `MaterialShapes` container (the settings entry uses the
+  faceted Gem shape, tertiary tones), with a small press scale/rotate flourish.
+  Future top-bar actions pick their own shape from the `ActionShapes` registry.
+
+## [0.2.0] - 2026-06-27
+
+### Added
+- M2 Material 3 Expressive UI — the app is fully navigable now: the
+  provider/permission onboarding gate, the lists overview (smart lists + user
+  lists grouped by account), and the task list (swipe-to-complete / -delete,
+  inline add, smart-list section headers), detail, and create/edit screens, all
+  wired to the M1 ViewModels.
+- M3 detail/edit polish: a "Progress" slider (percent-complete, 5% detents,
+  written to `Tasks.PERCENT_COMPLETE`) and conflict-safe saves — `updateTask`
+  re-checks the provider's `last_modified` against the value captured when the
+  form loaded and surfaces an overwrite-or-cancel prompt instead of clobbering an
+  external change (e.g. a DAVx5 sync).
+- M4 subtasks (UI): reparent — a full-width, searchable "Parent task" sheet on
+  the edit form, with candidates grouped by due-date section, files a task under
+  any active top-level task in its list (or "None" to promote it); switching list
+  clears the now-invalid parent. Tapping a subtask in the detail screen opens its
+  own detail, which shows a "Part of …" parent card. On the task list a parent has
+  a dedicated expand button that reveals its children as a nested grouped run,
+  ending with an inline "add a subtask" row (an opt-out toggle is planned for the
+  M6 settings screen).
+- Priority is coloured by level (green / amber / red pastels) on the list, detail,
+  and edit screens.
+
+### Fixed
+- Overview open-counts now count top-level tasks only, so subtasks — and
+  especially open subtasks under a completed parent — no longer inflate a list's
+  "N open" or the smart-list counts.
+- Swipe-to-delete now reveals its red background + icon as you drag (tracking the
+  live direction, not just the settled target), and a floating "Deleted · Undo"
+  chip defers the actual delete so it can be restored.
+
 ## [0.1.0] - 2026-06-18
 
 ### Added

CONTRIBUTING.md

@@ -1,6 +1,6 @@
-# Contributing to Floret
+# Contributing to Agendula
 
-Thanks for your interest in Floret — a Material 3 Expressive task app that's a
+Thanks for your interest in Agendula — a Material 3 Expressive task app that's a
 pure front-end over the OpenTasks `TaskContract` provider, with no own database
 or sync stack. Before diving in, skim [`docs/ARCHITECTURE.md`](docs/ARCHITECTURE.md)
 (how it's built), [`docs/ROADMAP.md`](docs/ROADMAP.md) (what's next), and
@@ -80,7 +80,7 @@ push, so run these locally before opening a PR. Keep CI green.
 
 ## Scope
 
-Floret stays true to its thesis: a front-end over **open** task backends
+Agendula stays true to its thesis: a front-end over **open** task backends
 (CalDAV / iCalendar / DecSync via the OpenTasks provider). Proprietary backends
 (Google Tasks, Microsoft To Do) are out of scope by design — they'd mean owning
 a sync stack. v1 targets the OpenTasks contract (OpenTasks + tasks.org); jtx's

README.md

@@ -1,6 +1,6 @@
 <div align="center">
 
-<h1>Floret</h1>
+<h1>Agendula</h1>
 
 <p><strong>A modern Material 3 Expressive task app for Android.</strong><br>
 Reads, writes, and reminds — on top of an existing tasks provider, with no own
@@ -13,14 +13,16 @@ sync stack.</p>
 
 </div>
 
-Floret is the task-list sibling to [Calendula](https://gitea.jeanlucmakiola.de/makiolaj/calendula).
-Where Calendula is a pure front-end over Android's `CalendarContract`, Floret is
+Agendula is the task-list sibling to [Calendula](https://gitea.jeanlucmakiola.de/makiolaj/calendula).
+Where Calendula is a pure front-end over Android's `CalendarContract`, Agendula is
 a pure front-end over the **OpenTasks `TaskContract` provider** — the store that
 DAVx5 (and SmoothSync, DecSync, …) syncs your CalDAV `VTODO` tasks into. No own
 database, no reinvented sync.
 
-A Calendula flower head is botanically made of many small *florets* — the
-individual items that make up the bloom. Floret is those items: your tasks.
+The name rhymes with its sibling on purpose: **Agendula** is *agenda* — Latin for
+“things to be done” — given Calendula's `-ula` ending. Calendula keeps your days;
+Agendula keeps your to-dos. (A Calendula flower head is botanically a cluster of
+many small *florets* — so the two apps are florets of one bloom.)
 
 > **Status: data layer done, UI in progress.** The full non-visual stack over
 > the `TaskContract` provider — provider resolution, live-updating reads,
@@ -32,7 +34,7 @@ individual items that make up the bloom. Floret is those items: your tasks.
 
 ## Sync sources (by design)
 
-Floret works with anything that writes to the tasks provider — **DAVx5**
+Agendula works with anything that writes to the tasks provider — **DAVx5**
 (CalDAV), **SmoothSync**, **CalDAV-Sync**, **DecSync CC**, or any Android sync
 adapter — because it builds on the provider, not on any one sync app. Google
 Tasks / Microsoft To Do are out of scope by design (proprietary; they would mean

app/build.gradle.kts

@@ -16,11 +16,11 @@ val keystoreProperties = Properties().apply {
 }
 
 android {
-    namespace = "de.jeanlucmakiola.floret"
+    namespace = "de.jeanlucmakiola.agendula"
     compileSdk = 37
 
     defaultConfig {
-        applicationId = "de.jeanlucmakiola.floret"
+        applicationId = "de.jeanlucmakiola.agendula"
         minSdk = 29
         targetSdk = 36
         // The git tag is the single source of truth for released builds: at
@@ -28,8 +28,8 @@ android {
         // the tag, with versionCode = MAJOR*10000 + MINOR*100 + PATCH
         // (e.g. v2.0.0 -> 20000). These committed values are the dev/local
         // default; keep them matching the latest released tag. See docs/RELEASING.md.
-        versionCode = 100
-        versionName = "0.1.0"
+        versionCode = 200
+        versionName = "0.2.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -110,6 +110,7 @@ dependencies {
 
     implementation(libs.hilt.android)
     implementation(libs.androidx.hilt.navigation.compose)
+    implementation(libs.androidx.navigation.compose)
     ksp(libs.hilt.compiler)
 
     implementation(libs.androidx.datastore.preferences)
@@ -119,6 +120,12 @@ dependencies {
 
     implementation(libs.kotlinx.datetime)
     implementation(libs.kotlinx.coroutines.core)
+    implementation("de.jeanlucmakiola.floret:core-time")
+    implementation("de.jeanlucmakiola.floret:core-reminders")
+    implementation("de.jeanlucmakiola.floret:core-locale")
+    implementation("de.jeanlucmakiola.floret:core-crash")
+    implementation("de.jeanlucmakiola.floret:identity")
+    implementation("de.jeanlucmakiola.floret:components")
 
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)

app/src/main/AndroidManifest.xml

@@ -30,15 +30,16 @@
     </queries>
 
     <application
-        android:name=".FloretApp"
+        android:name=".AgendulaApp"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
+        android:localeConfig="@xml/locales_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/Theme.Floret"
+        android:theme="@style/Theme.Agendula"
         tools:targetApi="35">
         <activity
             android:name=".MainActivity"
@@ -51,6 +52,14 @@
             </intent-filter>
         </activity>
 
+        <!-- Standalone crash-report surface; MainActivity routes here on a
+             startup crash-loop. Not exported, kept out of recents. -->
+        <activity
+            android:name=".ui.crash.CrashReportActivity"
+            android:exported="false"
+            android:excludeFromRecents="true"
+            android:launchMode="singleTask" />
+
         <!-- Reminder alarm fires here (internal PendingIntent → not exported). -->
         <receiver
             android:name=".data.reminders.DueReminderReceiver"
@@ -76,6 +85,17 @@
                 <data android:scheme="content" android:host="org.dmfs.tasks" />
             </intent-filter>
         </receiver>
+
+        <!-- Persists the per-app language on API < 33, where the platform
+             per-app-languages API is unavailable. On 33+ this is a no-op. -->
+        <service
+            android:name="androidx.appcompat.app.AppLocalesMetadataHolderService"
+            android:enabled="false"
+            android:exported="false">
+            <meta-data
+                android:name="autoStoreLocales"
+                android:value="true" />
+        </service>
     </application>
 
 </manifest>

app/src/main/java/de/jeanlucmakiola/agendula/AgendulaApp.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret
+package de.jeanlucmakiola.agendula
 
 import android.app.Application
 import dagger.hilt.EntryPoint
@@ -6,22 +6,35 @@ import dagger.hilt.InstallIn
 import dagger.hilt.android.EntryPointAccessors
 import dagger.hilt.android.HiltAndroidApp
 import dagger.hilt.components.SingletonComponent
-import de.jeanlucmakiola.floret.data.reminders.ReminderScheduler
+import de.jeanlucmakiola.agendula.data.reminders.ReminderScheduler
+import de.jeanlucmakiola.floret.crash.CrashConfig
+import de.jeanlucmakiola.floret.crash.CrashReporter
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.launch
 
 /**
- * Application entry point. Registered as android:name=".FloretApp". Besides
+ * Application entry point. Registered as android:name=".AgendulaApp". Besides
  * Hilt init, it kicks off a reminder re-sync on launch (independent of any UI),
  * so alarms reflect tasks synced while the app was closed.
  */
 @HiltAndroidApp
-class FloretApp : Application() {
+class AgendulaApp : Application() {
 
     override fun onCreate() {
         super.onCreate()
+        // Install first thing so startup crashes are captured too (privacy-
+        // respecting, on-device; the user submits the report by hand).
+        CrashReporter.install(
+            this,
+            CrashConfig(
+                appLabel = getString(R.string.app_name),
+                newIssueUrl = getString(R.string.report_issue_url),
+                chooseIssueUrl = getString(R.string.report_issue_url),
+                issueTitle = getString(R.string.crash_report_issue_title),
+            ),
+        )
         val scheduler = EntryPointAccessors
             .fromApplication(this, ReminderEntryPoint::class.java)
             .reminderScheduler()

app/src/main/java/de/jeanlucmakiola/agendula/MainActivity.kt

@@ -0,0 +1,114 @@
+package de.jeanlucmakiola.agendula
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.lifecycleScope
+import dagger.hilt.android.AndroidEntryPoint
+import de.jeanlucmakiola.agendula.data.demo.DemoSeeder
+import de.jeanlucmakiola.agendula.data.prefs.ThemeMode
+import de.jeanlucmakiola.agendula.ui.RootScreen
+import de.jeanlucmakiola.agendula.ui.crash.CrashReportActivity
+import de.jeanlucmakiola.agendula.ui.settings.SettingsViewModel
+import de.jeanlucmakiola.agendula.ui.theme.AgendulaTheme
+import de.jeanlucmakiola.floret.crash.CrashReportDialog
+import de.jeanlucmakiola.floret.crash.CrashReporter
+import de.jeanlucmakiola.floret.crash.submitCrashReport
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * Single activity. The theme follows [SettingsViewModel]; [RootScreen] is the
+ * (replaceable) functional scaffold over the real data layer. Task-detail intent
+ * routing for reminder taps lands with the full UI.
+ */
+@AndroidEntryPoint
+class MainActivity : ComponentActivity() {
+
+    @Inject lateinit var demoSeeder: DemoSeeder
+
+    // A captured crash report awaiting the user's decision, surfaced as a dialog
+    // over the app on the next launch (the single-crash path). A startup
+    // crash-loop is handled out of band, before setContent — see below.
+    private var pendingCrashReport by mutableStateOf<String?>(null)
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        // If the app keeps crashing as it starts, the main UI can't be trusted
+        // to come up. Route to the standalone report screen instead of
+        // re-entering the crashing graph.
+        if (CrashReporter.isCrashLoop(this)) {
+            startActivity(Intent(this, CrashReportActivity::class.java))
+            finish()
+            return
+        }
+
+        enableEdgeToEdge()
+
+        // Surface a single captured crash as a dialog on the next launch.
+        if (CrashReporter.shouldPrompt(this)) pendingCrashReport = CrashReporter.pendingReport(this)
+
+        // Debug-only sample data: `am start ... --ez agendula_seed true`. Seeds a
+        // local (non-syncing) demo list once; no-op without the extra.
+        if (BuildConfig.DEBUG && intent.getBooleanExtra(EXTRA_SEED, false)) {
+            lifecycleScope.launch { runCatching { demoSeeder.seed() } }
+        }
+        setContent {
+            val settingsViewModel: SettingsViewModel = hiltViewModel()
+            val ui by settingsViewModel.state.collectAsStateWithLifecycle()
+            val darkTheme = when (ui.settings.themeMode) {
+                ThemeMode.SYSTEM -> isSystemInDarkTheme()
+                ThemeMode.LIGHT -> false
+                ThemeMode.DARK -> true
+            }
+            AgendulaTheme(darkTheme = darkTheme, dynamicColor = ui.settings.dynamicColor) {
+                RootScreen(modifier = Modifier.fillMaxSize())
+                pendingCrashReport?.let { report ->
+                    CrashReportDialog(
+                        report = report,
+                        onSend = {
+                            submitCrashReport(this@MainActivity, report)
+                            CrashReporter.clearReport(this@MainActivity)
+                            pendingCrashReport = null
+                        },
+                        onDismiss = {
+                            CrashReporter.dismissPrompt(this@MainActivity)
+                            pendingCrashReport = null
+                        },
+                    )
+                }
+            }
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+        // A successful start breaks any loop; reset the timing trail so a later
+        // ordinary crash isn't mistaken for a loop.
+        CrashReporter.markHealthy(this)
+    }
+
+    companion object {
+        const val EXTRA_TASK_ID = "de.jeanlucmakiola.agendula.extra.TASK_ID"
+        private const val EXTRA_SEED = "agendula_seed"
+
+        /** Opens the app focused on a task (reminder taps). Routing lands with the UI. */
+        fun taskIntent(context: Context, taskId: Long): Intent =
+            Intent(context, MainActivity::class.java).apply {
+                putExtra(EXTRA_TASK_ID, taskId)
+                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/data/demo/DemoSeeder.kt

@@ -1,10 +1,10 @@
-package de.jeanlucmakiola.floret.data.demo
+package de.jeanlucmakiola.agendula.data.demo
 
-import de.jeanlucmakiola.floret.data.di.IoDispatcher
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.domain.DayWindow
-import de.jeanlucmakiola.floret.domain.Priority
-import de.jeanlucmakiola.floret.domain.TaskForm
+import de.jeanlucmakiola.agendula.data.di.IoDispatcher
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.floret.time.DayWindow
+import de.jeanlucmakiola.agendula.domain.Priority
+import de.jeanlucmakiola.agendula.domain.TaskForm
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.withContext
@@ -16,10 +16,10 @@ import kotlin.time.Instant
 
 /**
  * Debug-only one-shot sample data. Creates a **local, device-only** list
- * ("Floret Demo") — so nothing syncs to a CalDAV server — and fills it with
+ * ("Agendula Demo") — so nothing syncs to a CalDAV server — and fills it with
  * tasks spread across overdue / today / upcoming / no-date / completed so every
  * smart list shows content. Idempotent: skips if the demo list already exists.
- * Triggered from [de.jeanlucmakiola.floret.MainActivity] only in debug builds.
+ * Triggered from [de.jeanlucmakiola.agendula.MainActivity] only in debug builds.
  */
 @Singleton
 class DemoSeeder @Inject constructor(
@@ -47,14 +47,14 @@ class DemoSeeder @Inject constructor(
         repository.createTask(TaskForm(title = "Gather receipts", listId = listId, parentId = invoiceId))
         repository.createTask(TaskForm(title = "Book train tickets", listId = listId, due = at(te + 6 * day), priority = Priority.LOW))
         repository.createTask(TaskForm(title = "Read Compose 1.5 release notes", listId = listId))
-        repository.createTask(TaskForm(title = "Sketch the Floret app icon", listId = listId))
+        repository.createTask(TaskForm(title = "Sketch the Agendula app icon", listId = listId))
 
         val done = repository.createTask(TaskForm(title = "Renew domain name", listId = listId, due = at(ts - 2 * day)))
         repository.setCompleted(done, completed = true)
     }
 
     private companion object {
-        const val DEMO_LIST = "Floret Demo"
+        const val DEMO_LIST = "Agendula Demo"
         const val DEMO_COLOR = 0xFF7A5C6B.toInt()
     }
 }

app/src/main/java/de/jeanlucmakiola/agendula/data/di/DataModule.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.di
+package de.jeanlucmakiola.agendula.data.di
 
 import android.content.Context
 import androidx.datastore.core.DataStore
@@ -10,16 +10,16 @@ import dagger.Provides
 import dagger.hilt.InstallIn
 import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
-import de.jeanlucmakiola.floret.data.tasks.AndroidTasksDataSource
-import de.jeanlucmakiola.floret.data.tasks.TasksDataSource
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.data.tasks.TasksRepositoryImpl
+import de.jeanlucmakiola.agendula.data.tasks.AndroidTasksDataSource
+import de.jeanlucmakiola.agendula.data.tasks.TasksDataSource
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepositoryImpl
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
 import javax.inject.Singleton
 
-private val Context.floretDataStore: DataStore<Preferences> by preferencesDataStore(
-    name = "floret_prefs",
+private val Context.agendulaDataStore: DataStore<Preferences> by preferencesDataStore(
+    name = "agendula_prefs",
 )
 
 @Module
@@ -42,7 +42,7 @@ object DataProvideModule {
     @Provides
     @Singleton
     fun provideDataStore(@ApplicationContext context: Context): DataStore<Preferences> =
-        context.floretDataStore
+        context.agendulaDataStore
 
     @Provides
     @IoDispatcher

app/src/main/java/de/jeanlucmakiola/agendula/data/di/Qualifiers.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.di
+package de.jeanlucmakiola.agendula.data.di
 
 import javax.inject.Qualifier
 

app/src/main/java/de/jeanlucmakiola/agendula/data/prefs/SettingsPrefs.kt

@@ -0,0 +1,124 @@
+package de.jeanlucmakiola.agendula.data.prefs
+
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.booleanPreferencesKey
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.intPreferencesKey
+import androidx.datastore.preferences.core.longPreferencesKey
+import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.datastore.preferences.core.stringSetPreferencesKey
+import de.jeanlucmakiola.agendula.domain.TaskFormField
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
+import de.jeanlucmakiola.floret.reminders.ReminderOverrideCodec
+import de.jeanlucmakiola.floret.reminders.applyReminderOverride
+import de.jeanlucmakiola.floret.reminders.reminderLeadFor
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import javax.inject.Inject
+import javax.inject.Singleton
+
+enum class ThemeMode { SYSTEM, LIGHT, DARK }
+
+data class Settings(
+    val themeMode: ThemeMode = ThemeMode.SYSTEM,
+    val dynamicColor: Boolean = true,
+    /** The list a new task defaults to; `null` = first available. */
+    val defaultListId: Long? = null,
+    /** Default minutes before due to remind; 0 = at due time. */
+    val reminderLeadMinutes: Int = 0,
+    /** Master switch for due reminders; off clears every scheduled alarm. */
+    val remindersEnabled: Boolean = true,
+    /** Whether the inline "add a subtask" row shows on expanded task-list groups. */
+    val showAddSubtaskRow: Boolean = true,
+    /**
+     * Add affordance for a list: `false` = the floating "New task" button (opens
+     * the editor); `true` = a quick-add bar pinned to the bottom of a real list.
+     * Smart lists always use the button (they have no single list to add into).
+     */
+    val bottomAddBar: Boolean = false,
+    /**
+     * Per-list overrides of [reminderLeadMinutes]: a list present in the map
+     * overrides the global default (a null value = no reminder); absent = inherit.
+     */
+    val perListReminderOverride: Map<Long, Int?> = emptyMap(),
+    /** Optional edit-form fields shown by default; the rest sit behind "More fields". */
+    val defaultEditFields: Set<TaskFormField> = emptySet(),
+) {
+    /** The lead time for a task in [listId]: its override if set, else the global default. */
+    fun reminderLeadFor(listId: Long): Int? =
+        perListReminderOverride.reminderLeadFor(listId, reminderLeadMinutes)
+}
+
+/** App preferences, backed by DataStore. Mirrors Calendula's prefs shape. */
+@Singleton
+class SettingsPrefs @Inject constructor(
+    private val dataStore: DataStore<Preferences>,
+) {
+    val settings: Flow<Settings> = dataStore.data.map { p ->
+        Settings(
+            themeMode = p[THEME_MODE]?.let { runCatching { ThemeMode.valueOf(it) }.getOrNull() }
+                ?: ThemeMode.SYSTEM,
+            dynamicColor = p[DYNAMIC_COLOR] ?: true,
+            defaultListId = p[DEFAULT_LIST_ID]?.takeIf { it > 0 },
+            reminderLeadMinutes = p[REMINDER_LEAD] ?: 0,
+            remindersEnabled = p[REMINDERS_ENABLED] ?: true,
+            showAddSubtaskRow = p[SHOW_ADD_SUBTASK_ROW] ?: true,
+            bottomAddBar = p[BOTTOM_ADD_BAR] ?: false,
+            perListReminderOverride = reminderCodec.parse(p[LIST_REMINDER_OVERRIDE]),
+            defaultEditFields = p[DEFAULT_EDIT_FIELDS].orEmpty()
+                .mapNotNull { name -> runCatching { TaskFormField.valueOf(name) }.getOrNull() }
+                .toSet(),
+        )
+    }
+
+    suspend fun setThemeMode(mode: ThemeMode) = dataStore.edit { it[THEME_MODE] = mode.name }
+    suspend fun setDynamicColor(enabled: Boolean) = dataStore.edit { it[DYNAMIC_COLOR] = enabled }
+    suspend fun setDefaultListId(id: Long?) = dataStore.edit {
+        if (id == null) it.remove(DEFAULT_LIST_ID) else it[DEFAULT_LIST_ID] = id
+    }
+
+    suspend fun setReminderLeadMinutes(minutes: Int) = dataStore.edit { it[REMINDER_LEAD] = minutes }
+
+    /** One-time reminder onboarding gate; false until the step has been shown. */
+    val reminderOnboardingDone: Flow<Boolean> = dataStore.data.map { it[REMINDER_ONBOARDING_DONE] ?: false }
+
+    suspend fun setReminderOnboardingDone() = dataStore.edit { it[REMINDER_ONBOARDING_DONE] = true }
+
+    suspend fun setRemindersEnabled(enabled: Boolean) = dataStore.edit { it[REMINDERS_ENABLED] = enabled }
+
+    suspend fun setShowAddSubtaskRow(show: Boolean) = dataStore.edit { it[SHOW_ADD_SUBTASK_ROW] = show }
+
+    suspend fun setBottomAddBar(enabled: Boolean) = dataStore.edit { it[BOTTOM_ADD_BAR] = enabled }
+
+    /** Set (or clear, via [ReminderOverride.Inherit]) a list's reminder override. */
+    suspend fun setListReminderOverride(listId: Long, override: ReminderOverride) = dataStore.edit { p ->
+        val current = reminderCodec.parse(p[LIST_REMINDER_OVERRIDE]).toMutableMap()
+        current.applyReminderOverride(listId, override)
+        p[LIST_REMINDER_OVERRIDE] = reminderCodec.serialize(current)
+    }
+
+    suspend fun setDefaultEditFields(fields: Set<TaskFormField>) = dataStore.edit {
+        it[DEFAULT_EDIT_FIELDS] = fields.mapTo(mutableSetOf()) { field -> field.name }
+    }
+
+    private companion object {
+        val THEME_MODE = stringPreferencesKey("theme_mode")
+        val DYNAMIC_COLOR = booleanPreferencesKey("dynamic_color")
+        val DEFAULT_LIST_ID = longPreferencesKey("default_list_id")
+        val REMINDER_LEAD = intPreferencesKey("reminder_lead_minutes")
+        val REMINDERS_ENABLED = booleanPreferencesKey("reminders_enabled")
+        val SHOW_ADD_SUBTASK_ROW = booleanPreferencesKey("show_add_subtask_row")
+        val BOTTOM_ADD_BAR = booleanPreferencesKey("bottom_add_bar")
+        val REMINDER_ONBOARDING_DONE = booleanPreferencesKey("reminder_onboarding_done")
+        val LIST_REMINDER_OVERRIDE = stringPreferencesKey("list_reminder_override")
+        val DEFAULT_EDIT_FIELDS = stringSetPreferencesKey("default_edit_fields")
+    }
+}
+
+/**
+ * Agendula's stored dialect for the per-list override map: `id:minutes` entries
+ * joined by `;` (the family default). Fixed at release — don't change without a
+ * data migration.
+ */
+private val reminderCodec = ReminderOverrideCodec.DEFAULT

app/src/main/java/de/jeanlucmakiola/agendula/data/reminders/BootReceiver.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.reminders
+package de.jeanlucmakiola.agendula.data.reminders
 
 import android.content.BroadcastReceiver
 import android.content.Context

app/src/main/java/de/jeanlucmakiola/agendula/data/reminders/DueReminderReceiver.kt

@@ -1,13 +1,15 @@
-package de.jeanlucmakiola.floret.data.reminders
+package de.jeanlucmakiola.agendula.data.reminders
 
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import dagger.hilt.android.AndroidEntryPoint
-import de.jeanlucmakiola.floret.data.tasks.TasksDataSource
+import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.agendula.data.tasks.TasksDataSource
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -21,6 +23,7 @@ class DueReminderReceiver : BroadcastReceiver() {
 
     @Inject lateinit var dataSource: TasksDataSource
     @Inject lateinit var notifier: TaskNotifier
+    @Inject lateinit var settingsPrefs: SettingsPrefs
 
     private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
 
@@ -30,6 +33,7 @@ class DueReminderReceiver : BroadcastReceiver() {
         val pending = goAsync()
         scope.launch {
             try {
+                if (!settingsPrefs.settings.first().remindersEnabled) return@launch
                 val task = runCatching { dataSource.task(taskId) }.getOrNull()
                 if (task != null && !task.isClosed) notifier.postDue(task)
             } finally {
@@ -39,7 +43,7 @@ class DueReminderReceiver : BroadcastReceiver() {
     }
 
     companion object {
-        private const val EXTRA_TASK_ID = "de.jeanlucmakiola.floret.extra.TASK_ID"
+        private const val EXTRA_TASK_ID = "de.jeanlucmakiola.agendula.extra.TASK_ID"
 
         fun intent(context: Context, taskId: Long): Intent =
             Intent(context, DueReminderReceiver::class.java).putExtra(EXTRA_TASK_ID, taskId)

app/src/main/java/de/jeanlucmakiola/agendula/data/reminders/ProviderChangeReceiver.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.reminders
+package de.jeanlucmakiola.agendula.data.reminders
 
 import android.content.BroadcastReceiver
 import android.content.Context
@@ -12,7 +12,7 @@ import javax.inject.Inject
 
 /**
  * Re-syncs reminders whenever the tasks provider changes — covers external sync
- * (DAVx5 pulling new/edited tasks) while Floret isn't in the foreground. The
+ * (DAVx5 pulling new/edited tasks) while Agendula isn't in the foreground. The
  * manifest filter targets both known authorities; best-effort (the in-app
  * ContentObserver covers the foreground case regardless).
  */

app/src/main/java/de/jeanlucmakiola/agendula/data/reminders/ReminderScheduler.kt

@@ -1,15 +1,15 @@
-package de.jeanlucmakiola.floret.data.reminders
+package de.jeanlucmakiola.agendula.data.reminders
 
 import android.app.AlarmManager
 import android.app.PendingIntent
 import android.content.Context
 import android.os.Build
 import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.floret.data.di.IoDispatcher
-import de.jeanlucmakiola.floret.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.floret.data.tasks.ProviderResolver
-import de.jeanlucmakiola.floret.data.tasks.TaskQuery
-import de.jeanlucmakiola.floret.data.tasks.TasksDataSource
+import de.jeanlucmakiola.agendula.data.di.IoDispatcher
+import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.agendula.data.tasks.ProviderResolver
+import de.jeanlucmakiola.agendula.data.tasks.TaskQuery
+import de.jeanlucmakiola.agendula.data.tasks.TasksDataSource
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.withContext
@@ -18,7 +18,7 @@ import javax.inject.Singleton
 
 /**
  * The self-scheduled due-reminder engine. Tasks providers don't deliver
- * reminders, so Floret reads upcoming due tasks and arms one exact [AlarmManager]
+ * reminders, so Agendula reads upcoming due tasks and arms one exact [AlarmManager]
  * alarm each, within a rolling window. Re-run on app start, boot and provider
  * change; it diffs against [ScheduledReminderStore] so only changed alarms move.
  */
@@ -33,11 +33,11 @@ class ReminderScheduler @Inject constructor(
 ) {
     suspend fun sync() = withContext(io) {
         val provider = providerResolver.resolve()
-        if (provider == null || !providerResolver.hasPermission(provider)) {
+        val settings = settingsPrefs.settings.first()
+        if (provider == null || !providerResolver.hasPermission(provider) || !settings.remindersEnabled) {
             clearAll()
             return@withContext
         }
-        val lead = settingsPrefs.settings.first().reminderLeadMinutes.coerceAtLeast(0)
         val now = System.currentTimeMillis()
         val horizon = now + WINDOW_MS
         val tasks = runCatching { dataSource.tasks(TaskQuery(includeCompleted = false)) }
@@ -45,7 +45,13 @@ class ReminderScheduler @Inject constructor(
 
         val desired = tasks
             .filter { !it.isClosed && it.due != null }
-            .associate { it.taskId to (it.due!!.toEpochMilliseconds() - lead * 60_000L) }
+            .mapNotNull { task ->
+                // The task's list may override the global lead, or opt out entirely
+                // (override = null), in which case it gets no reminder at all.
+                val lead = settings.reminderLeadFor(task.listId) ?: return@mapNotNull null
+                task.taskId to (task.due!!.toEpochMilliseconds() - lead.coerceAtLeast(0) * 60_000L)
+            }
+            .toMap()
             .filterValues { it in now..horizon }
 
         val previous = store.all()

app/src/main/java/de/jeanlucmakiola/agendula/data/reminders/ScheduledReminderStore.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.reminders
+package de.jeanlucmakiola.agendula.data.reminders
 
 import androidx.datastore.core.DataStore
 import androidx.datastore.preferences.core.Preferences

app/src/main/java/de/jeanlucmakiola/agendula/data/reminders/TaskNotifier.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.reminders
+package de.jeanlucmakiola.agendula.data.reminders
 
 import android.Manifest
 import android.annotation.SuppressLint
@@ -12,9 +12,9 @@ import android.os.Build
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.content.ContextCompat
-import de.jeanlucmakiola.floret.MainActivity
-import de.jeanlucmakiola.floret.R
-import de.jeanlucmakiola.floret.domain.Task
+import de.jeanlucmakiola.agendula.MainActivity
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.agendula.domain.Task
 import dagger.hilt.android.qualifiers.ApplicationContext
 import java.time.Instant as JInstant
 import java.time.ZoneId

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/AndroidTasksDataSource.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 import android.content.ContentResolver
 import android.content.ContentUris
@@ -9,12 +9,12 @@ import android.net.Uri
 import android.os.Handler
 import android.os.Looper
 import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Instances
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Lists
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Tasks
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskForm
-import de.jeanlucmakiola.floret.domain.TaskList
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Instances
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Lists
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Tasks
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import de.jeanlucmakiola.agendula.domain.TaskList
 import java.time.ZoneId
 import javax.inject.Inject
 import javax.inject.Singleton

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/ColumnReader.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 import android.database.Cursor
 

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/Failures.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 /** No tasks provider (OpenTasks / tasks.org) is installed on the device. */
 class ProviderUnavailableException :
@@ -7,3 +7,10 @@ class ProviderUnavailableException :
 /** A ContentResolver write returned no URI or affected no rows. */
 class TaskWriteFailedException(operation: String) :
     RuntimeException("Task write failed: $operation")
+
+/**
+ * The task changed (e.g. a DAVx5 sync or another app) since the edit form loaded
+ * it, so saving would clobber that change. The UI offers to overwrite or reload.
+ */
+class TaskConflictException(taskId: Long) :
+    RuntimeException("Task $taskId changed since it was loaded")

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/ProviderResolver.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 import android.content.Context
 import android.content.pm.PackageManager
@@ -8,7 +8,7 @@ import javax.inject.Inject
 import javax.inject.Singleton
 
 /**
- * A tasks provider Floret can talk to. The same dmfs `TaskProvider` backs every
+ * A tasks provider Agendula can talk to. The same dmfs `TaskProvider` backs every
  * candidate, so the [TasksContract] columns apply regardless of which is present.
  */
 data class TaskProvider(

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TaskMapper.kt

@@ -1,12 +1,12 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Instances
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Lists
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Tasks
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskList
-import de.jeanlucmakiola.floret.domain.priorityFromICal
-import de.jeanlucmakiola.floret.domain.statusFromInt
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Instances
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Lists
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Tasks
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskList
+import de.jeanlucmakiola.agendula.domain.priorityFromICal
+import de.jeanlucmakiola.agendula.domain.statusFromInt
 import kotlin.time.Instant
 
 /** Maps a provider row (via [ColumnReader]) to a domain model. Pure + testable. */

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TaskProjections.kt

@@ -1,8 +1,8 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Instances
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Lists
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Tasks
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Instances
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Lists
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Tasks
 
 /** Column lists requested from the provider. Order is irrelevant; we read by name. */
 object TaskProjections {

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TaskWriteMapper.kt

@@ -1,9 +1,9 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Lists
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Tasks
-import de.jeanlucmakiola.floret.domain.TaskForm
-import de.jeanlucmakiola.floret.domain.toICal
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Lists
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Tasks
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import de.jeanlucmakiola.agendula.domain.toICal
 
 /**
  * Turns a [TaskForm] / mutation into a name→value map. Pure (no ContentValues),
@@ -17,6 +17,27 @@ object TaskWriteMapper {
         put(Tasks.LIST_ID, form.listId)
         put(Tasks.DESCRIPTION, form.description?.trim()?.ifBlank { null })
         put(Tasks.PRIORITY, form.priority.toICal())
+        // Keep completion in sync with progress whenever the form carries a
+        // percent (the Progress field was used). The provider already auto-
+        // completes at 100% but won't reopen below it — left to itself it strands
+        // a task "done at 75%" — so we set status both ways. COMPLETED is only
+        // cleared on reopen; at 100% we leave it for the provider to fill/keep so
+        // re-saving a finished task doesn't churn its completion timestamp. When
+        // no percent is present the standalone complete toggle stays authoritative.
+        val percent = form.percentComplete?.coerceIn(0, 100)
+        put(Tasks.PERCENT_COMPLETE, percent)
+        when {
+            percent == null -> Unit
+            percent >= 100 -> put(Tasks.STATUS, TasksContract.STATUS_COMPLETED)
+            percent > 0 -> {
+                put(Tasks.STATUS, TasksContract.STATUS_IN_PROCESS)
+                put(Tasks.COMPLETED, null)
+            }
+            else -> {
+                put(Tasks.STATUS, TasksContract.STATUS_NEEDS_ACTION)
+                put(Tasks.COMPLETED, null)
+            }
+        }
         put(Tasks.IS_ALLDAY, if (form.isAllDay) 1 else 0)
         put(Tasks.DTSTART, form.start?.toEpochMilliseconds())
         put(Tasks.DUE, form.due?.toEpochMilliseconds())

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TasksContract.kt

@@ -1,9 +1,9 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 import android.net.Uri
 
 /**
- * The subset of the OpenTasks `TaskContract` that Floret uses, vendored as
+ * The subset of the OpenTasks `TaskContract` that Agendula uses, vendored as
  * Kotlin constants. Derived from `org.dmfs.tasks.contract.TaskContract`
  * (Apache-2.0, dmfs GmbH):
  * https://github.com/dmfs/opentasks/blob/master/opentasks-contract/src/main/java/org/dmfs/tasks/contract/TaskContract.java
@@ -25,7 +25,7 @@ object TasksContract {
     const val PARAM_ACCOUNT_TYPE = "account_type"
     const val LOAD_PROPERTIES = "load_properties"
 
-    /** Account used for local, device-only task lists Floret owns. */
+    /** Account used for local, device-only task lists Agendula owns. */
     const val LOCAL_ACCOUNT_NAME = "Local"
     const val LOCAL_ACCOUNT_TYPE = "org.dmfs.account.LOCAL"
 
@@ -85,7 +85,7 @@ object TasksContract {
      * The `instances` view — one row per task occurrence, with recurrence
      * resolved and absolute [INSTANCE_START]/[INSTANCE_DUE] timestamps. Inherits
      * every [Tasks] column (title, status, …) plus the instance-only columns
-     * below. This is Floret's read source.
+     * below. This is Agendula's read source.
      */
     object Instances {
         const val PATH = "instances"

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TasksDataSource.kt

@@ -1,8 +1,8 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskForm
-import de.jeanlucmakiola.floret.domain.TaskList
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import de.jeanlucmakiola.agendula.domain.TaskList
 
 /** What to fetch from the provider. Smart-list date logic is applied above this. */
 data class TaskQuery(

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TasksRepository.kt

@@ -0,0 +1,46 @@
+package de.jeanlucmakiola.agendula.data.tasks
+
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskDetail
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import de.jeanlucmakiola.agendula.domain.TaskList
+import kotlinx.coroutines.flow.Flow
+import kotlin.time.Instant
+
+/** Whether Agendula can use the tasks provider right now. Drives onboarding. */
+enum class ProviderStatus { READY, NEEDS_PERMISSION, NO_PROVIDER }
+
+/**
+ * The single entry point the UI layer uses. Flows re-emit automatically when the
+ * provider changes (our writes *and* external sync like DAVx5), via the
+ * data source's ContentObserver.
+ */
+interface TasksRepository {
+    fun taskLists(): Flow<List<TaskList>>
+    fun tasks(filter: TaskFilter): Flow<List<Task>>
+
+    /**
+     * The direct children of [parentId], re-emitting live like the other flows.
+     * Lets a smart-list view pull a parent's full subtask set on demand — those
+     * children are usually filtered out of the list's own (date-based) query.
+     */
+    fun subtasks(parentId: Long): Flow<List<Task>>
+    fun taskDetail(taskId: Long): Flow<TaskDetail?>
+
+    suspend fun createTask(form: TaskForm): Long
+
+    /**
+     * Overwrite [taskId] with [form]. When [expectedLastModified] is non-null, the
+     * task's current `last_modified` is re-checked first and a
+     * [TaskConflictException] is thrown if it differs — i.e. something changed it
+     * since the form loaded. Pass `null` to force the write (overwrite-anyway).
+     */
+    suspend fun updateTask(taskId: Long, form: TaskForm, expectedLastModified: Instant? = null)
+    suspend fun setCompleted(taskId: Long, completed: Boolean)
+    suspend fun deleteTask(taskId: Long)
+    suspend fun createLocalList(name: String, color: Int): Long
+
+    /** Synchronous snapshot for the permission/onboarding gate. */
+    fun providerStatus(): ProviderStatus
+}

app/src/main/java/de/jeanlucmakiola/agendula/data/tasks/TasksRepositoryImpl.kt

@@ -1,15 +1,14 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
-import de.jeanlucmakiola.floret.data.di.IoDispatcher
-import de.jeanlucmakiola.floret.domain.DayWindow
-import de.jeanlucmakiola.floret.domain.SmartList
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskDetail
-import de.jeanlucmakiola.floret.domain.TaskFilter
-import de.jeanlucmakiola.floret.domain.TaskFiltering
-import de.jeanlucmakiola.floret.domain.TaskForm
-import de.jeanlucmakiola.floret.domain.TaskList
-import de.jeanlucmakiola.floret.domain.TaskSorting
+import de.jeanlucmakiola.agendula.data.di.IoDispatcher
+import de.jeanlucmakiola.floret.time.DayWindow
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskDetail
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.domain.TaskFiltering
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import de.jeanlucmakiola.agendula.domain.TaskList
+import de.jeanlucmakiola.agendula.domain.TaskSorting
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.channels.awaitClose
@@ -23,6 +22,7 @@ import java.time.ZoneId
 import javax.inject.Inject
 import javax.inject.Singleton
 import kotlin.time.Clock
+import kotlin.time.Instant
 
 @Singleton
 class TasksRepositoryImpl @Inject constructor(
@@ -35,28 +35,64 @@ class TasksRepositoryImpl @Inject constructor(
 
     override fun tasks(filter: TaskFilter): Flow<List<Task>> = observing { loadTasks(filter) }
 
+    override fun subtasks(parentId: Long): Flow<List<Task>> = observing {
+        dataSource.subtasks(parentId)
+            .filter { it.taskId != parentId }
+            .sortedWith(TaskSorting.DEFAULT)
+    }
+
     override fun taskDetail(taskId: Long): Flow<TaskDetail?> = observing {
         dataSource.task(taskId)?.let { task ->
-            TaskDetail(task, dataSource.subtasks(taskId).filter { it.taskId != taskId })
+            TaskDetail(
+                task = task,
+                subtasks = dataSource.subtasks(taskId).filter { it.taskId != taskId },
+                parent = task.parentId?.takeIf { it > 0 }?.let { dataSource.task(it) },
+            )
         }
     }
 
     private fun loadTasks(filter: TaskFilter): List<Task> {
         val query = when (filter) {
             is TaskFilter.OfList -> TaskQuery(listId = filter.listId, includeCompleted = true)
-            is TaskFilter.Smart -> TaskQuery(includeCompleted = filter.list == SmartList.COMPLETED)
+            // Read completed tasks too, then let [TaskFiltering.matches] enforce each
+            // smart list's own open/closed semantics. We over-read on purpose so a
+            // parent's subtask-progress reflects ALL its children — completed ones
+            // included — even on smart lists that hide completed tasks themselves.
+            is TaskFilter.Smart -> TaskQuery(includeCompleted = true)
         }
         val (todayStart, todayEnd) = DayWindow.today(Clock.System.now(), ZoneId.systemDefault())
-        return dataSource.tasks(query)
+        val all = dataSource.tasks(query)
+        // (done, total) of direct children per parent, over the unfiltered set.
+        val progress: Map<Long, Pair<Int, Int>> = all
+            .filter { (it.parentId ?: 0L) > 0L }
+            .groupingBy { it.parentId!! }
+            .fold(0 to 0) { (done, total), t ->
+                (if (t.isCompleted) done + 1 else done) to (total + 1)
+            }
+        return all
             .filter { TaskFiltering.matches(it, filter, todayStart, todayEnd) }
+            .map { task ->
+                progress[task.taskId]?.let { (done, total) ->
+                    task.copy(subtaskDone = done, subtaskTotal = total)
+                } ?: task
+            }
             .sortedWith(TaskSorting.DEFAULT)
     }
 
     override suspend fun createTask(form: TaskForm): Long =
         withContext(io) { dataSource.insertTask(form) }
 
-    override suspend fun updateTask(taskId: Long, form: TaskForm) =
-        withContext(io) { dataSource.updateTask(taskId, form) }
+    override suspend fun updateTask(taskId: Long, form: TaskForm, expectedLastModified: Instant?) =
+        withContext(io) {
+            // Conflict-safe overwrite: re-read just before writing and bail if the
+            // provider's last_modified moved since the form captured it (external
+            // sync / another app). A null baseline means "force / overwrite anyway".
+            if (expectedLastModified != null) {
+                val current = dataSource.task(taskId)?.lastModified
+                if (current != null && current != expectedLastModified) throw TaskConflictException(taskId)
+            }
+            dataSource.updateTask(taskId, form)
+        }
 
     override suspend fun setCompleted(taskId: Long, completed: Boolean) =
         withContext(io) { dataSource.setCompleted(taskId, completed) }

app/src/main/java/de/jeanlucmakiola/agendula/domain/Models.kt

@@ -1,6 +1,6 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
-import de.jeanlucmakiola.floret.data.tasks.TasksContract
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract
 import kotlin.time.Instant
 
 /** A task list (the `tasklists` table). Lists group under their account. */
@@ -14,7 +14,7 @@ data class TaskList(
     val isVisible: Boolean,
     val owner: String?,
 ) {
-    /** A device-only list Floret (or another app) created locally, not synced. */
+    /** A device-only list Agendula (or another app) created locally, not synced. */
     val isLocal: Boolean get() = accountType == TasksContract.LOCAL_ACCOUNT_TYPE
 }
 
@@ -52,6 +52,13 @@ data class Task(
     val distanceFromCurrent: Int?,
     val created: Instant?,
     val lastModified: Instant?,
+    /**
+     * Direct-subtask progress, filled in by the repository over the *full* task
+     * set so a parent's progress chip counts completed children even on smart
+     * lists that hide them. Both 0 when the task has no subtasks.
+     */
+    val subtaskTotal: Int = 0,
+    val subtaskDone: Int = 0,
 ) {
     val isCompleted: Boolean get() = status == TaskStatus.COMPLETED
     val isClosed: Boolean get() = status == TaskStatus.COMPLETED || status == TaskStatus.CANCELLED
@@ -60,10 +67,11 @@ data class Task(
     val effectiveColor: Int get() = taskColor ?: listColor
 }
 
-/** Detail bundle: a task plus its direct children. */
+/** Detail bundle: a task, its parent (if it's a subtask), and its direct children. */
 data class TaskDetail(
     val task: Task,
     val subtasks: List<Task>,
+    val parent: Task? = null,
 )
 
 // --- pure provider <-> domain value mapping (unit-testable) ------------------

app/src/main/java/de/jeanlucmakiola/agendula/domain/TaskFilter.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 import kotlin.time.Instant
 

app/src/main/java/de/jeanlucmakiola/agendula/domain/TaskForm.kt

@@ -0,0 +1,51 @@
+package de.jeanlucmakiola.agendula.domain
+
+import kotlin.time.Instant
+
+/**
+ * A validated create/edit form. Kept free of Android types so ViewModels and
+ * tests can build and validate it on the JVM. The data layer turns it into
+ * provider ContentValues ([de.jeanlucmakiola.agendula.data.tasks.TaskWriteMapper]).
+ */
+data class TaskForm(
+    val title: String,
+    val listId: Long,
+    val description: String? = null,
+    val start: Instant? = null,
+    val due: Instant? = null,
+    val isAllDay: Boolean = false,
+    val priority: Priority = Priority.NONE,
+    val parentId: Long? = null,
+    /** 0..100 progress; `null` leaves it unset (cleared). */
+    val percentComplete: Int? = null,
+    /** Minutes before [due] to fire a reminder; `null` = no reminder. */
+    val reminderMinutesBeforeDue: Int? = null,
+) {
+    fun validate(): Set<TaskFormError> = buildSet {
+        if (title.isBlank()) add(TaskFormError.BLANK_TITLE)
+        if (listId <= 0L) add(TaskFormError.NO_LIST)
+        if (start != null && due != null && due < start) add(TaskFormError.DUE_BEFORE_START)
+        if (reminderMinutesBeforeDue != null && due == null) add(TaskFormError.REMINDER_WITHOUT_DUE)
+    }
+
+    val isValid: Boolean get() = validate().isEmpty()
+}
+
+enum class TaskFormError { BLANK_TITLE, NO_LIST, DUE_BEFORE_START, REMINDER_WITHOUT_DUE }
+
+/**
+ * Optional edit-form sections that can be shown or tucked behind "More fields"
+ * (the core Title / List / When are always visible). Which render by default is
+ * a setting; the rest unfold on demand. Declaring these as an enum keeps the
+ * disclosure generic, so adding a field later is one entry plus its card.
+ */
+enum class TaskFormField { Description, Priority, Progress, Parent, Reminder }
+
+/** The optional fields that already carry a value — auto-revealed when editing. */
+fun TaskForm.populatedFields(): Set<TaskFormField> = buildSet {
+    if (!description.isNullOrBlank()) add(TaskFormField.Description)
+    if (priority != Priority.NONE) add(TaskFormField.Priority)
+    if ((percentComplete ?: 0) > 0) add(TaskFormField.Progress)
+    if (parentId != null && parentId > 0) add(TaskFormField.Parent)
+    if (reminderMinutesBeforeDue != null) add(TaskFormField.Reminder)
+}

app/src/main/java/de/jeanlucmakiola/agendula/domain/TaskSections.kt

@@ -0,0 +1,39 @@
+package de.jeanlucmakiola.agendula.domain
+
+import kotlin.time.Instant
+
+/** A due-date bucket a task list groups its rows under. */
+enum class TaskSection { OVERDUE, TODAY, UPCOMING, NO_DATE, COMPLETED }
+
+/** A non-empty run of tasks under one [TaskSection], already in display order. */
+data class SectionedTasks(val section: TaskSection, val tasks: List<Task>)
+
+/**
+ * Group already-sorted tasks into due-date sections (the standard task-app
+ * presentation). Pure + side-effect-free so it unit-tests with a fixed clock,
+ * mirroring [TaskFiltering] / [DayWindow]. Completed tasks always fall to the
+ * [TaskSection.COMPLETED] bucket regardless of their due date.
+ *
+ * [todayStart] is local midnight today and [todayEnd] local midnight tomorrow
+ * (compute with [DayWindow]). Only non-empty sections are returned, in the
+ * fixed order Overdue → Today → Upcoming → No date → Completed.
+ */
+object TaskSections {
+
+    fun of(tasks: List<Task>, todayStart: Instant, todayEnd: Instant): List<SectionedTasks> {
+        val bySection = tasks.groupBy { sectionOf(it, todayStart, todayEnd) }
+        return TaskSection.entries.mapNotNull { section ->
+            bySection[section]?.takeIf { it.isNotEmpty() }?.let { SectionedTasks(section, it) }
+        }
+    }
+
+    fun sectionOf(task: Task, todayStart: Instant, todayEnd: Instant): TaskSection {
+        if (task.isCompleted) return TaskSection.COMPLETED
+        val due = task.due ?: return TaskSection.NO_DATE
+        return when {
+            due < todayStart -> TaskSection.OVERDUE
+            due < todayEnd -> TaskSection.TODAY
+            else -> TaskSection.UPCOMING
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/domain/TaskSorting.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 /** Default task ordering, extracted so it's unit-testable without the repository. */
 object TaskSorting {

app/src/main/java/de/jeanlucmakiola/agendula/ui/RootScreen.kt

@@ -1,7 +1,8 @@
-package de.jeanlucmakiola.floret.ui
+package de.jeanlucmakiola.agendula.ui
 
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.animation.Crossfade
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
@@ -17,15 +18,16 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import de.jeanlucmakiola.floret.R
-import de.jeanlucmakiola.floret.data.tasks.ProviderStatus
-import de.jeanlucmakiola.floret.ui.lists.ListsScreen
-import de.jeanlucmakiola.floret.ui.permission.PermissionViewModel
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.agendula.data.tasks.ProviderStatus
+import de.jeanlucmakiola.agendula.ui.navigation.AgendulaNavHost
+import de.jeanlucmakiola.agendula.ui.permission.PermissionViewModel
+import de.jeanlucmakiola.agendula.ui.permission.ReminderOnboardingScreen
+import de.jeanlucmakiola.agendula.ui.permission.ReminderOnboardingViewModel
 
 /**
- * App root: gates on the tasks-provider permission, then shows the home
- * ([ListsScreen]). Navigation to the task-list / edit screens is wired as those
- * screens land (next milestones); the callbacks are stubs for now.
+ * App root: gates on the tasks-provider permission, then hands off to
+ * [AgendulaNavHost] (lists → task list → detail / edit).
  */
 @Composable
 fun RootScreen(
@@ -50,11 +52,31 @@ fun RootScreen(
             action = stringResource(R.string.onboarding_permission_button),
             onAction = { launcher.launch(permission.permissionsToRequest.toTypedArray()) },
         )
-        ProviderStatus.READY -> ListsScreen(
-            modifier = modifier,
-            onOpenFilter = { /* TODO: navigate to TaskListScreen */ },
-            onNewTask = { /* TODO: navigate to TaskEditScreen */ },
-        )
+        ProviderStatus.READY -> ReadyGate(modifier = modifier)
+    }
+}
+
+/**
+ * Second one-time gate after the provider grant: the reminder onboarding step.
+ * [ReminderOnboardingViewModel.onboardingDone] is null until DataStore's first
+ * emission — render nothing for that frame rather than flash the wrong screen.
+ * A cross-fade eases the hand-off to the app instead of snapping.
+ */
+@Composable
+private fun ReadyGate(
+    modifier: Modifier = Modifier,
+    onboardingViewModel: ReminderOnboardingViewModel = hiltViewModel(),
+) {
+    val done by onboardingViewModel.onboardingDone.collectAsStateWithLifecycle()
+    Crossfade(targetState = done, label = "reminderOnboardingGate") { state ->
+        when (state) {
+            true -> AgendulaNavHost(modifier = modifier)
+            false -> ReminderOnboardingScreen(
+                onFinished = onboardingViewModel::finish,
+                modifier = modifier,
+            )
+            null -> {}
+        }
     }
 }
 

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/DateTimeField.kt

@@ -0,0 +1,167 @@
+package de.jeanlucmakiola.agendula.ui.common
+
+import de.jeanlucmakiola.floret.time.formatDateTime
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.rounded.Clear
+import androidx.compose.material.icons.rounded.Event
+import androidx.compose.material3.DatePicker
+import androidx.compose.material3.DatePickerDialog
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TimePicker
+import androidx.compose.material3.rememberDatePickerState
+import androidx.compose.material3.rememberTimePickerState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.window.Dialog
+import de.jeanlucmakiola.agendula.R
+import java.time.LocalDate
+import java.time.LocalTime
+import java.time.ZoneId
+import java.time.ZoneOffset
+import kotlin.time.Instant
+
+private val zone: ZoneId get() = ZoneId.systemDefault()
+
+internal fun Instant.toLocalDate(): LocalDate =
+    java.time.Instant.ofEpochMilli(toEpochMilliseconds()).atZone(zone).toLocalDate()
+
+internal fun Instant.toLocalTime(): LocalTime =
+    java.time.Instant.ofEpochMilli(toEpochMilliseconds()).atZone(zone).toLocalTime()
+
+internal fun localToInstant(date: LocalDate, time: LocalTime): Instant =
+    Instant.fromEpochMilliseconds(date.atTime(time).atZone(zone).toInstant().toEpochMilli())
+
+/**
+ * A labelled date(-time) field for the edit form: a tonal row showing the
+ * current value (or nothing), tappable to pick a date and — unless [allDay] —
+ * a time. A clear affordance appears once a value is set. Emits `null` when
+ * cleared. Styled to match the app's rounded tonal family.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun DateTimeField(
+    label: String,
+    value: Instant?,
+    allDay: Boolean,
+    onChange: (Instant?) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    var showDatePicker by remember { mutableStateOf(false) }
+    var showTimePicker by remember { mutableStateOf(false) }
+    var pendingDate by remember { mutableStateOf<LocalDate?>(null) }
+
+    Surface(
+        onClick = { showDatePicker = true },
+        shape = RoundedCornerShape(22.dp),
+        color = MaterialTheme.colorScheme.surfaceContainerHigh,
+        modifier = modifier.fillMaxWidth(),
+    ) {
+        Row(
+            modifier = Modifier.padding(horizontal = 20.dp, vertical = 14.dp),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            Icon(Icons.Rounded.Event, contentDescription = null, tint = MaterialTheme.colorScheme.onSurfaceVariant)
+            Column(modifier = Modifier.weight(1f)) {
+                Text(
+                    text = label,
+                    style = MaterialTheme.typography.labelMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+                Text(
+                    text = value?.formatDateTime(allDay) ?: stringResource(R.string.edit_set),
+                    style = MaterialTheme.typography.bodyLarge,
+                )
+            }
+            if (value != null) {
+                IconButton(onClick = { onChange(null) }) {
+                    Icon(Icons.Rounded.Clear, contentDescription = stringResource(R.string.edit_clear))
+                }
+            }
+        }
+    }
+
+    if (showDatePicker) {
+        val initialMillis = (value ?: Instant.fromEpochMilliseconds(System.currentTimeMillis()))
+            .toLocalDate().atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli()
+        val dateState = rememberDatePickerState(initialSelectedDateMillis = initialMillis)
+        DatePickerDialog(
+            onDismissRequest = { showDatePicker = false },
+            confirmButton = {
+                TextButton(
+                    onClick = {
+                        showDatePicker = false
+                        val millis = dateState.selectedDateMillis ?: return@TextButton
+                        val date = java.time.Instant.ofEpochMilli(millis)
+                            .atZone(ZoneOffset.UTC).toLocalDate()
+                        if (allDay) {
+                            onChange(localToInstant(date, LocalTime.MIDNIGHT))
+                        } else {
+                            pendingDate = date
+                            showTimePicker = true
+                        }
+                    },
+                ) { Text(stringResource(android.R.string.ok)) }
+            },
+            dismissButton = {
+                TextButton(onClick = { showDatePicker = false }) {
+                    Text(stringResource(android.R.string.cancel))
+                }
+            },
+        ) { DatePicker(state = dateState) }
+    }
+
+    if (showTimePicker) {
+        val base = value ?: Instant.fromEpochMilliseconds(System.currentTimeMillis())
+        val timeState = rememberTimePickerState(
+            initialHour = base.toLocalTime().hour,
+            initialMinute = base.toLocalTime().minute,
+        )
+        Dialog(onDismissRequest = { showTimePicker = false }) {
+            Surface(
+                shape = RoundedCornerShape(28.dp),
+                color = MaterialTheme.colorScheme.surfaceContainerHigh,
+            ) {
+                Column(
+                    modifier = Modifier.padding(24.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    verticalArrangement = Arrangement.spacedBy(16.dp),
+                ) {
+                    TimePicker(state = timeState)
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.End,
+                    ) {
+                        TextButton(onClick = { showTimePicker = false }) {
+                            Text(stringResource(android.R.string.cancel))
+                        }
+                        TextButton(onClick = {
+                            showTimePicker = false
+                            val date = pendingDate ?: return@TextButton
+                            onChange(localToInstant(date, LocalTime.of(timeState.hour, timeState.minute)))
+                        }) { Text(stringResource(android.R.string.ok)) }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/ListChip.kt

@@ -1,39 +1,32 @@
-package de.jeanlucmakiola.floret.ui.common
+package de.jeanlucmakiola.agendula.ui.common
 
+import de.jeanlucmakiola.floret.components.pastelize
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Checklist
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.luminance
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 
-/**
- * Soften a raw provider colour toward a pastel that fits the active theme —
- * keeps the hue (lists stay recognisable), caps saturation so harsh sync
- * colours stop screaming, pins brightness to read on light and dark. Copied
- * from Calendula so the families' colours behave identically.
- */
-fun pastelize(rawArgb: Int, dark: Boolean): Color {
-    val hsv = FloatArray(3)
-    android.graphics.Color.colorToHSV(rawArgb, hsv)
-    hsv[1] = (hsv[1] * 0.6f).coerceIn(0.25f, 0.65f)
-    hsv[2] = if (dark) 0.82f else 0.72f
-    return Color(android.graphics.Color.HSVToColor(hsv))
-}
-
 /**
  * Leading avatar for a task list: a neutral round chip holding a checklist glyph
  * tinted in the list's (pastelised) colour — the Calendula calendar-chip pattern,
- * with a task icon for Floret.
+ * with a task icon for Agendula.
  */
 @Composable
 fun ListColorChip(color: Int, modifier: Modifier = Modifier) {
@@ -53,3 +46,25 @@ fun ListColorChip(color: Int, modifier: Modifier = Modifier) {
         )
     }
 }
+
+/**
+ * A small pill naming the task's list, filled in the list's (pastelised) colour.
+ * The label flips black/white by the fill's luminance so it stays legible on any
+ * hue in light and dark. Used in mixed views (smart lists) where rows span lists.
+ */
+@Composable
+fun ListNameChip(name: String, color: Int, modifier: Modifier = Modifier) {
+    val dark = isSystemInDarkTheme()
+    val fill = pastelize(color, dark)
+    val onFill = if (fill.luminance() > 0.5f) Color.Black else Color.White
+    Surface(color = fill, shape = RoundedCornerShape(50), modifier = modifier) {
+        Text(
+            text = name,
+            color = onFill,
+            style = MaterialTheme.typography.labelSmall,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 2.dp),
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/PriorityChip.kt

@@ -0,0 +1,131 @@
+package de.jeanlucmakiola.agendula.ui.common
+
+import de.jeanlucmakiola.floret.components.pastelize
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.rounded.Flag
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.isSpecified
+import androidx.compose.ui.graphics.luminance
+import androidx.compose.ui.unit.dp
+import de.jeanlucmakiola.agendula.domain.Priority
+
+/**
+ * Priority has no semantic Material role (M3 only ships `error` for danger), so
+ * we give the ranked levels their own hues — green / amber / red. They're softened
+ * harder than the list-colour [pastelize] (lower saturation, higher value) so the
+ * chips stay gentle and low-key rather than shouting. [Priority.NONE] has no
+ * colour (callers render it neutral).
+ */
+fun priorityFill(priority: Priority, dark: Boolean): Color {
+    val base = when (priority) {
+        Priority.HIGH -> 0xFFE53935.toInt()   // red
+        Priority.MEDIUM -> 0xFFFFB300.toInt() // amber
+        Priority.LOW -> 0xFF43A047.toInt()    // green
+        Priority.NONE -> return Color.Unspecified
+    }
+    val hsv = FloatArray(3)
+    android.graphics.Color.colorToHSV(base, hsv)
+    hsv[1] = if (dark) 0.36f else 0.22f // desaturate toward pastel
+    hsv[2] = if (dark) 0.58f else 0.92f // light, soft fill in light; muted in dark
+    return Color(android.graphics.Color.HSVToColor(hsv))
+}
+
+/**
+ * Foreground tint (icon/text) for a priority level — the same red/amber/green as
+ * [priorityFill], but kept saturated enough to read as a small glyph directly on
+ * the surface rather than as a soft fill. Used by the task list's quiet meta line,
+ * where priority is a tinted flag instead of a filled pill. [Priority.NONE] is
+ * unspecified (callers render it neutral / omit it).
+ */
+fun priorityAccent(priority: Priority, dark: Boolean): Color {
+    val base = when (priority) {
+        Priority.HIGH -> 0xFFE53935.toInt()   // red
+        Priority.MEDIUM -> 0xFFFB8C00.toInt() // orange-amber (darker than the fill for contrast)
+        Priority.LOW -> 0xFF43A047.toInt()    // green
+        Priority.NONE -> return Color.Unspecified
+    }
+    val hsv = FloatArray(3)
+    android.graphics.Color.colorToHSV(base, hsv)
+    hsv[1] = if (dark) 0.55f else 0.85f
+    hsv[2] = if (dark) 0.85f else 0.62f // light on dark surfaces; deep on light ones
+    return Color(android.graphics.Color.HSVToColor(hsv))
+}
+
+/**
+ * A coloured status pill for a task's priority: a flag plus the level's [label],
+ * filled in that level's pastel hue. Used read-only in the list and detail
+ * screens (default [selected] = true), and as a selectable option in the edit
+ * form — there [selected] = false shows the hue on the flag with an outlined,
+ * unfilled container, and tapping commits the choice via [onClick].
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun PriorityChip(
+    priority: Priority,
+    label: String,
+    modifier: Modifier = Modifier,
+    selected: Boolean = true,
+    showIcon: Boolean = true,
+    onClick: (() -> Unit)? = null,
+) {
+    val dark = isSystemInDarkTheme()
+    val fill = priorityFill(priority, dark)
+    val hasColor = fill.isSpecified
+
+    val container: Color
+    val content: Color
+    val iconTint: Color
+    var border: BorderStroke? = null
+    when {
+        selected && hasColor -> {
+            container = fill
+            content = if (fill.luminance() > 0.5f) Color.Black else Color.White
+            iconTint = content
+        }
+        selected -> { // NONE, selected — neutral fill, no hue to show
+            container = MaterialTheme.colorScheme.surfaceContainerHighest
+            content = MaterialTheme.colorScheme.onSurfaceVariant
+            iconTint = content
+        }
+        else -> { // an unselected option in a picker — outline, hue kept on the flag
+            container = Color.Transparent
+            content = MaterialTheme.colorScheme.onSurfaceVariant
+            iconTint = if (hasColor) fill else MaterialTheme.colorScheme.onSurfaceVariant
+            border = BorderStroke(1.dp, MaterialTheme.colorScheme.outlineVariant)
+        }
+    }
+
+    val body: @Composable () -> Unit = {
+        Row(
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 2.dp),
+            horizontalArrangement = Arrangement.spacedBy(4.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            if (showIcon) {
+                Icon(Icons.Rounded.Flag, contentDescription = null, tint = iconTint, modifier = Modifier.size(14.dp))
+            }
+            Text(label, style = MaterialTheme.typography.labelSmall, color = content)
+        }
+    }
+    val shape = RoundedCornerShape(50)
+    if (onClick != null) {
+        Surface(onClick = onClick, color = container, shape = shape, border = border, modifier = modifier) { body() }
+    } else {
+        Surface(color = container, shape = shape, border = border, modifier = modifier) { body() }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/ReminderFormatting.kt

@@ -0,0 +1,37 @@
+package de.jeanlucmakiola.agendula.ui.common
+
+import androidx.annotation.StringRes
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.pluralStringResource
+import androidx.compose.ui.res.stringResource
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.floret.reminders.ReminderUnit
+
+/** Common reminder lead times offered as quick picks in the reminder pickers. */
+val REMINDER_PRESETS = listOf(0, 5, 10, 30, 60, 1_440)
+
+@StringRes
+fun reminderUnitLabel(unit: ReminderUnit): Int = when (unit) {
+    ReminderUnit.Minutes -> R.string.reminder_unit_minutes
+    ReminderUnit.Hours -> R.string.reminder_unit_hours
+    ReminderUnit.Days -> R.string.reminder_unit_days
+    ReminderUnit.Weeks -> R.string.reminder_unit_weeks
+}
+
+/**
+ * Humanise a reminder lead time (minutes before due) into one line: "At time of
+ * task" (0), "10 minutes before", "1 hour before", … Shared by the reminder
+ * pickers and the settings summaries so the wording never drifts. Ported from
+ * Calendula.
+ */
+@Composable
+fun reminderLeadTimeLabel(minutes: Int): String = when {
+    minutes <= 0 -> stringResource(R.string.reminder_at_due)
+    minutes % 10_080 == 0 ->
+        pluralStringResource(R.plurals.reminder_weeks, minutes / 10_080, minutes / 10_080)
+    minutes % 1_440 == 0 ->
+        pluralStringResource(R.plurals.reminder_days, minutes / 1_440, minutes / 1_440)
+    minutes % 60 == 0 ->
+        pluralStringResource(R.plurals.reminder_hours, minutes / 60, minutes / 60)
+    else -> pluralStringResource(R.plurals.reminder_minutes, minutes, minutes)
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/ReminderLeadPicker.kt

@@ -0,0 +1,172 @@
+package de.jeanlucmakiola.agendula.ui.common
+
+import de.jeanlucmakiola.floret.components.FullScreenPicker
+import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.floret.components.DialogAmountField
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
+import de.jeanlucmakiola.floret.reminders.ReminderUnit
+import de.jeanlucmakiola.floret.reminders.decomposeReminderMinutes
+import androidx.compose.animation.AnimatedVisibility
+import de.jeanlucmakiola.floret.identity.collapseExit
+import de.jeanlucmakiola.floret.identity.expandEnter
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.FilledTonalButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.SegmentedButton
+import androidx.compose.material3.SegmentedButtonDefaults
+import androidx.compose.material3.SingleChoiceSegmentedButtonRow
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import de.jeanlucmakiola.agendula.R
+
+/**
+ * Reminder lead-time picker, full-screen: the grouped list of preset lead times
+ * plus a "Custom" row that expands an inline amount field + unit selector.
+ * [allowInherit] adds a "Use default" row (per-list overrides); [allowNone] adds
+ * a "None" row. Returns the choice as a [ReminderOverride]. Ported from
+ * Calendula's ReminderDefaultPicker.
+ */
+@Composable
+fun ReminderLeadPicker(
+    title: String,
+    selected: ReminderOverride,
+    allowInherit: Boolean,
+    allowNone: Boolean,
+    onSelect: (ReminderOverride) -> Unit,
+    onDismiss: () -> Unit,
+    presets: List<Int> = REMINDER_PRESETS,
+) {
+    val selectedMinutes = (selected as? ReminderOverride.Minutes)?.minutes
+    val customSelected = selectedMinutes != null && selectedMinutes !in presets
+    val seed = decomposeReminderMinutes(selectedMinutes?.takeIf { customSelected })
+
+    var customExpanded by rememberSaveable { mutableStateOf(false) }
+    var amountText by rememberSaveable { mutableStateOf(seed.amount?.toString() ?: "") }
+    var unit by rememberSaveable { mutableStateOf(seed.unit) }
+
+    val options = buildList {
+        if (allowInherit) add(ReminderOverride.Inherit)
+        if (allowNone) add(ReminderOverride.None)
+        presets.forEach { add(ReminderOverride.Minutes(it)) }
+    }
+    val rowCount = options.size + 1 // + the custom row
+
+    FullScreenPicker(title = title, onDismiss = onDismiss) {
+        options.forEachIndexed { index, option ->
+            val isSelected = option == selected
+            GroupedRow(
+                title = reminderOverrideLabel(option),
+                position = positionOf(index, rowCount),
+                selected = isSelected,
+                onClick = {
+                    onSelect(option)
+                    onDismiss()
+                },
+            )
+        }
+        // Expanded, the Custom row connects downward into the editor card so the
+        // two read as one grouped container.
+        GroupedRow(
+            title = if (customSelected) {
+                stringResource(R.string.reminder_custom_with_value, reminderLeadTimeLabel(selectedMinutes!!))
+            } else {
+                stringResource(R.string.reminder_custom)
+            },
+            position = if (customExpanded) Position.Top else positionOf(options.size, rowCount),
+            selected = customSelected,
+            onClick = { customExpanded = !customExpanded },
+        )
+        AnimatedVisibility(
+            visible = customExpanded,
+            enter = expandEnter(),
+            exit = collapseExit(),
+        ) {
+            CustomReminderEditor(
+                amountText = amountText,
+                onAmountChange = { amountText = it },
+                unit = unit,
+                onUnitChange = { unit = it },
+                onConfirm = { minutes ->
+                    onSelect(ReminderOverride.Minutes(minutes))
+                    onDismiss()
+                },
+            )
+        }
+    }
+}
+
+@Composable
+private fun CustomReminderEditor(
+    amountText: String,
+    onAmountChange: (String) -> Unit,
+    unit: ReminderUnit,
+    onUnitChange: (ReminderUnit) -> Unit,
+    onConfirm: (Int) -> Unit,
+) {
+    val amount = amountText.toIntOrNull()?.takeIf { it in 1..999 }
+    Surface(
+        color = MaterialTheme.colorScheme.surfaceContainerHigh,
+        // A Position.Bottom shape: tight top corners meeting the row, full bottom.
+        shape = RoundedCornerShape(topStart = 6.dp, topEnd = 6.dp, bottomStart = 22.dp, bottomEnd = 22.dp),
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+    ) {
+        Column(
+            modifier = Modifier.padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(16.dp),
+        ) {
+            SingleChoiceSegmentedButtonRow(modifier = Modifier.fillMaxWidth()) {
+                ReminderUnit.entries.forEachIndexed { index, entry ->
+                    SegmentedButton(
+                        selected = unit == entry,
+                        onClick = { onUnitChange(entry) },
+                        shape = SegmentedButtonDefaults.itemShape(index, ReminderUnit.entries.size),
+                        label = { Text(stringResource(reminderUnitLabel(entry))) },
+                    )
+                }
+            }
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                DialogAmountField(value = amountText, onValueChange = onAmountChange, placeholder = "10")
+                Spacer(Modifier.width(16.dp))
+                Text(
+                    text = amount?.let { reminderLeadTimeLabel(it * unit.minutesFactor) }
+                        ?: stringResource(R.string.reminder_custom_amount),
+                    style = MaterialTheme.typography.bodyLarge,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.weight(1f),
+                )
+                Spacer(Modifier.width(16.dp))
+                FilledTonalButton(
+                    onClick = { amount?.let { onConfirm(it * unit.minutesFactor) } },
+                    enabled = amount != null,
+                ) {
+                    Text(stringResource(R.string.reminder_custom_set))
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun reminderOverrideLabel(override: ReminderOverride): String = when (override) {
+    ReminderOverride.Inherit -> stringResource(R.string.reminder_use_default)
+    ReminderOverride.None -> stringResource(R.string.reminder_none)
+    is ReminderOverride.Minutes -> reminderLeadTimeLabel(override.minutes)
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/ShapedActionButton.kt

@@ -0,0 +1,85 @@
+package de.jeanlucmakiola.agendula.ui.common
+
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.interaction.collectIsPressedAsState
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialShapes
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.toShape
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.draw.scale
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import androidx.graphics.shapes.RoundedPolygon
+
+/**
+ * A top-bar action whose icon sits in a tonal container clipped to one of the
+ * M3 Expressive [MaterialShapes] (cookie, clover, sunny, …) — Agendula's playful
+ * take on a plain [androidx.compose.material3.IconButton]. Each action passes
+ * its own [shape] and [containerColor], so a row of them reads as a set of
+ * distinct little tokens rather than identical grey glyphs.
+ *
+ * Pressing springs the icon down a touch and gives it a small turn — a light
+ * expressive flourish, no library motion APIs needed.
+ */
+@OptIn(ExperimentalMaterial3ExpressiveApi::class)
+@Composable
+fun ShapedActionButton(
+    shape: RoundedPolygon,
+    icon: ImageVector,
+    contentDescription: String?,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+    containerColor: Color = MaterialTheme.colorScheme.tertiaryContainer,
+    contentColor: Color = MaterialTheme.colorScheme.onTertiaryContainer,
+    size: Dp = 40.dp,
+    iconSize: Dp = 22.dp,
+) {
+    val interaction = remember { MutableInteractionSource() }
+    val pressed by interaction.collectIsPressedAsState()
+    val scale by animateFloatAsState(if (pressed) 0.88f else 1f, label = "actionScale")
+    val rotation by animateFloatAsState(if (pressed) 24f else 0f, label = "actionRotation")
+
+    Surface(
+        onClick = onClick,
+        modifier = modifier.size(size),
+        shape = shape.toShape(),
+        color = containerColor,
+        contentColor = contentColor,
+        interactionSource = interaction,
+    ) {
+        Box(contentAlignment = Alignment.Center) {
+            Icon(
+                imageVector = icon,
+                contentDescription = contentDescription,
+                modifier = Modifier
+                    .size(iconSize)
+                    .scale(scale)
+                    .rotate(rotation),
+            )
+        }
+    }
+}
+
+/**
+ * Named shapes for the app's top-bar actions, so each action is recognisably
+ * "its own" and new actions just pick the next unused shape. Expose the
+ * expressive [MaterialShapes] through a single opt-in site.
+ */
+@OptIn(ExperimentalMaterial3ExpressiveApi::class)
+object ActionShapes {
+    /** Settings — a 4-sided cookie (rounded, scalloped square). */
+    val Settings: RoundedPolygon get() = MaterialShapes.Cookie4Sided
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/crash/CrashReportActivity.kt

@@ -0,0 +1,61 @@
+package de.jeanlucmakiola.agendula.ui.crash
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.ui.Modifier
+import de.jeanlucmakiola.agendula.ui.theme.AgendulaTheme
+import de.jeanlucmakiola.floret.crash.CrashReportDialog
+import de.jeanlucmakiola.floret.crash.CrashReporter
+import de.jeanlucmakiola.floret.crash.submitCrashReport
+
+/**
+ * Standalone surface for a captured crash report. [MainActivity] routes here
+ * when it detects a startup crash-loop (see [CrashReporter.isCrashLoop]): the
+ * main UI can't be trusted to start, so this screen stays clear of the app's
+ * Hilt graph, DataStore-backed theme and Compose content — it only reads the
+ * report file and shows the kit's report dialog. Plain [AgendulaTheme] defaults
+ * (follow-system, dynamic colour) avoid touching anything that might be the
+ * cause of the crash. The reusable machinery lives in floret-kit's core-crash.
+ */
+class CrashReportActivity : ComponentActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        val report = CrashReporter.pendingReport(this)
+        if (report == null) {
+            finish()
+            return
+        }
+        enableEdgeToEdge()
+        setContent {
+            AgendulaTheme {
+                // Opaque backdrop so the dialog doesn't float over a bare task.
+                Surface(Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.surface) {}
+                CrashReportDialog(
+                    report = report,
+                    onSend = {
+                        submitCrashReport(this, report)
+                        CrashReporter.clearReport(this)
+                        finish()
+                    },
+                    onDismiss = {
+                        CrashReporter.clearReport(this)
+                        finish()
+                    },
+                )
+            }
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+        // Reaching this screen breaks the loop; reset the timing trail so a
+        // later ordinary crash isn't mistaken for a loop.
+        CrashReporter.markHealthy(this)
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/detail/TaskDetailScreen.kt

@@ -0,0 +1,528 @@
+package de.jeanlucmakiola.agendula.ui.detail
+
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.imePadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.rounded.ArrowBack
+import androidx.compose.material.icons.automirrored.rounded.ListAlt
+import androidx.compose.material.icons.automirrored.rounded.Notes
+import androidx.compose.material.icons.rounded.AccountTree
+import androidx.compose.material.icons.rounded.Add
+import androidx.compose.material.icons.rounded.Check
+import androidx.compose.material.icons.rounded.Checklist
+import androidx.compose.material.icons.rounded.Delete
+import androidx.compose.material.icons.rounded.Edit
+import androidx.compose.material.icons.rounded.ExpandMore
+import androidx.compose.material.icons.rounded.Flag
+import androidx.compose.material.icons.rounded.Percent
+import androidx.compose.material.icons.rounded.Schedule
+import androidx.compose.material3.Checkbox
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LinearProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextDecoration
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskDetail
+import de.jeanlucmakiola.floret.components.GroupedSurface
+import de.jeanlucmakiola.agendula.ui.common.PriorityChip
+import de.jeanlucmakiola.floret.time.formatDate
+import de.jeanlucmakiola.floret.time.formatTime
+import de.jeanlucmakiola.floret.components.pastelize
+import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.agendula.ui.tasklist.priorityLabel
+
+/**
+ * One task's detail. Each fact is its own tonal card with a leading icon (the
+ * Calendula detail pattern); only genuinely-grouped things — the subtasks — use
+ * the grouped-row run. Edit / delete live in the top bar.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun TaskDetailScreen(
+    onEdit: () -> Unit,
+    onDeleted: () -> Unit,
+    onBack: () -> Unit,
+    onOpenTask: (Long) -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: TaskDetailViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    Scaffold(
+        modifier = modifier,
+        topBar = {
+            TopAppBar(
+                title = { Text(stringResource(R.string.task_detail_title)) },
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        Icon(
+                            Icons.AutoMirrored.Rounded.ArrowBack,
+                            contentDescription = stringResource(R.string.back),
+                        )
+                    }
+                },
+                actions = {
+                    val content = state as? TaskDetailUiState.Content
+                    IconButton(onClick = onEdit, enabled = content != null) {
+                        Icon(Icons.Rounded.Edit, contentDescription = stringResource(R.string.edit))
+                    }
+                    IconButton(
+                        onClick = {
+                            content?.let {
+                                viewModel.delete(it.detail.task)
+                                onDeleted()
+                            }
+                        },
+                        enabled = content != null,
+                    ) {
+                        Icon(Icons.Rounded.Delete, contentDescription = stringResource(R.string.delete))
+                    }
+                },
+            )
+        },
+    ) { inner ->
+        when (val s = state) {
+            TaskDetailUiState.Loading -> Unit
+            TaskDetailUiState.NotFound ->
+                CenteredMessage(stringResource(R.string.task_detail_not_found), inner)
+            is TaskDetailUiState.Content -> DetailBody(
+                detail = s.detail,
+                inner = inner,
+                onToggle = { viewModel.toggleComplete(s.detail.task) },
+                onToggleSubtask = { viewModel.toggleComplete(it) },
+                onAddSubtask = { viewModel.addSubtask(it) },
+                onOpenTask = onOpenTask,
+            )
+        }
+    }
+}
+
+@Composable
+private fun DetailBody(
+    detail: TaskDetail,
+    inner: androidx.compose.foundation.layout.PaddingValues,
+    onToggle: () -> Unit,
+    onToggleSubtask: (Task) -> Unit,
+    onAddSubtask: (String) -> Unit,
+    onOpenTask: (Long) -> Unit,
+) {
+    val task = detail.task
+    val dark = isSystemInDarkTheme()
+    val accent = pastelize(task.effectiveColor, dark)
+    val gap = 12.dp
+    var subtasksExpanded by rememberSaveable { mutableStateOf(true) }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(inner)
+            // Shrink the scroll viewport by the keyboard so the focused add-subtask
+            // field scrolls into view above the IME instead of being hidden.
+            .imePadding()
+            .verticalScroll(rememberScrollState())
+            .padding(start = 24.dp, end = 24.dp, top = 8.dp, bottom = 40.dp),
+    ) {
+        // Title + complete toggle, with a short list-coloured accent beneath.
+        Row(verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+            Checkbox(checked = task.isCompleted, onCheckedChange = { onToggle() })
+            Text(
+                text = task.title.ifBlank { stringResource(R.string.task_untitled) },
+                style = MaterialTheme.typography.headlineMedium,
+                fontWeight = FontWeight.SemiBold,
+                textDecoration = if (task.isCompleted) TextDecoration.LineThrough else null,
+                modifier = Modifier.weight(1f),
+            )
+        }
+        Spacer(Modifier.height(10.dp))
+        Box(
+            modifier = Modifier
+                .width(48.dp)
+                .height(3.dp)
+                .background(accent, RoundedCornerShape(2.dp)),
+        )
+
+        Spacer(Modifier.height(20.dp))
+
+        // One card per fact; gaps between, no shared container (they aren't a group).
+        val cards = buildList<@Composable () -> Unit> {
+            // Parent — only when this is a subtask. Conveys that it's filed under
+            // another task (and so doesn't stand alone in the list); taps open it.
+            detail.parent?.let { parent ->
+                add {
+                    DetailCard(
+                        icon = Icons.Rounded.AccountTree,
+                        iconContentDescription = stringResource(R.string.detail_parent),
+                        onClick = { onOpenTask(parent.taskId) },
+                    ) {
+                        Text(
+                            text = stringResource(R.string.detail_part_of),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                        Text(
+                            text = parent.title.ifBlank { stringResource(R.string.task_untitled) },
+                            style = MaterialTheme.typography.titleMedium,
+                        )
+                    }
+                }
+            }
+
+            // When — the Calendula time card: date primary, time(s) secondary.
+            taskWhenLines(task)?.let { (primary, secondary) ->
+                add {
+                    DetailCard(icon = Icons.Rounded.Schedule, iconContentDescription = stringResource(R.string.detail_due)) {
+                        Text(primary, style = MaterialTheme.typography.titleMedium)
+                        if (secondary != null) {
+                            Spacer(Modifier.height(2.dp))
+                            Text(
+                                secondary,
+                                style = MaterialTheme.typography.bodyMedium,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            )
+                        }
+                    }
+                }
+            }
+
+            // List — icon tinted in the list colour conveys identity (no extra dot).
+            add {
+                DetailCard(
+                    icon = Icons.Rounded.Checklist,
+                    iconTint = accent,
+                    iconContentDescription = stringResource(R.string.detail_list),
+                ) {
+                    Text(
+                        text = task.listName ?: stringResource(R.string.detail_list),
+                        style = MaterialTheme.typography.titleMedium,
+                    )
+                }
+            }
+
+            // Priority — a coloured status chip in the level's hue.
+            if (task.priority != de.jeanlucmakiola.agendula.domain.Priority.NONE) {
+                add {
+                    DetailCard(
+                        icon = Icons.Rounded.Flag,
+                        iconContentDescription = stringResource(R.string.detail_priority),
+                    ) {
+                        PriorityChip(
+                            priority = task.priority,
+                            label = priorityLabel(task.priority),
+                            showIcon = false,
+                        )
+                    }
+                }
+            }
+
+            // Progress — shown when the task carries its own percent or has
+            // subtasks (then the completion ratio fills in if no percent is set).
+            val hasSubtasks = detail.subtasks.isNotEmpty()
+            if ((task.percentComplete ?: 0) > 0 || hasSubtasks) {
+                val pct = task.percentComplete
+                    ?: (detail.subtasks.count { it.isCompleted } * 100 / detail.subtasks.size)
+                add {
+                    DetailCard(icon = Icons.Rounded.Percent, iconContentDescription = stringResource(R.string.detail_progress)) {
+                        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+                            Text(stringResource(R.string.detail_progress), style = MaterialTheme.typography.titleMedium)
+                            Text(
+                                stringResource(R.string.percent_complete, pct),
+                                style = MaterialTheme.typography.titleMedium,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            )
+                        }
+                        Spacer(Modifier.height(8.dp))
+                        LinearProgressIndicator(progress = { pct / 100f }, modifier = Modifier.fillMaxWidth())
+                    }
+                }
+            }
+
+            // Description.
+            task.description?.takeIf { it.isNotBlank() }?.let { description ->
+                add {
+                    DetailCard(icon = Icons.AutoMirrored.Rounded.Notes, iconContentDescription = null) {
+                        Text(description, style = MaterialTheme.typography.bodyMedium)
+                    }
+                }
+            }
+
+            // Subtasks — a genuine group: a connected grouped run whose first
+            // segment is the expand/collapse toggle. Always shown (even with no
+            // subtasks yet) so the add field is reachable on any task.
+            add {
+                SubtasksGroup(
+                    subtasks = detail.subtasks,
+                    expanded = subtasksExpanded,
+                    onToggle = { subtasksExpanded = !subtasksExpanded },
+                    onToggleSubtask = onToggleSubtask,
+                    onAddSubtask = onAddSubtask,
+                    onOpenSubtask = onOpenTask,
+                )
+            }
+        }
+        cards.forEachIndexed { index, card ->
+            if (index > 0) Spacer(Modifier.height(gap))
+            card()
+        }
+    }
+}
+
+/**
+ * Subtasks as a connected grouped run (the GroupedRow family look) at the
+ * cards' width: the first segment is the expand/collapse toggle (icon,
+ * "Subtasks", a done/total count, chevron); the rest are the subtask rows.
+ */
+@Composable
+private fun SubtasksGroup(
+    subtasks: List<Task>,
+    expanded: Boolean,
+    onToggle: () -> Unit,
+    onToggleSubtask: (Task) -> Unit,
+    onAddSubtask: (String) -> Unit,
+    onOpenSubtask: (Long) -> Unit,
+) {
+    val done = subtasks.count { it.isCompleted }
+    // Completed subtasks sink to the bottom; stable, so order is otherwise kept.
+    val ordered = remember(subtasks) { subtasks.sortedBy { it.isCompleted } }
+    val rotation by animateFloatAsState(if (expanded) 180f else 0f, label = "subtasksChevron")
+    // Segments when expanded: header + the always-present add row + each subtask.
+    val count = if (expanded) subtasks.size + 2 else 1
+
+    // First segment: the toggle header.
+    GroupedSurface(position = positionOf(0, count), onClick = onToggle) {
+        Row(
+            modifier = Modifier.fillMaxWidth().heightIn(min = 56.dp).padding(horizontal = 16.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Icon(
+                imageVector = Icons.AutoMirrored.Rounded.ListAlt,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.size(24.dp),
+            )
+            Spacer(Modifier.width(16.dp))
+            Text(
+                text = stringResource(R.string.detail_subtasks),
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.weight(1f),
+            )
+            // No count until there's something to count.
+            if (subtasks.isNotEmpty()) {
+                Text(
+                    text = "$done / ${subtasks.size}",
+                    style = MaterialTheme.typography.labelLarge,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+                Spacer(Modifier.width(8.dp))
+            }
+            Icon(
+                imageVector = Icons.Rounded.ExpandMore,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.rotate(rotation),
+            )
+        }
+    }
+
+    if (expanded) {
+        // Always-present add row at the top of the list, in an accent tone.
+        GroupedSurface(
+            position = positionOf(1, count),
+            color = MaterialTheme.colorScheme.primaryContainer,
+        ) {
+            AddSubtaskField(onAdd = onAddSubtask)
+        }
+        ordered.forEachIndexed { index, sub ->
+            GroupedSurface(
+                position = positionOf(index + 2, count),
+                onClick = { onOpenSubtask(sub.taskId) },
+            ) {
+                Row(
+                    modifier = Modifier.fillMaxWidth().heightIn(min = 56.dp).padding(start = 8.dp, end = 16.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    Checkbox(checked = sub.isCompleted, onCheckedChange = { onToggleSubtask(sub) })
+                    Spacer(Modifier.width(4.dp))
+                    Text(
+                        text = sub.title.ifBlank { stringResource(R.string.task_untitled) },
+                        style = MaterialTheme.typography.bodyLarge,
+                        textDecoration = if (sub.isCompleted) TextDecoration.LineThrough else null,
+                        color = if (sub.isCompleted) {
+                            MaterialTheme.colorScheme.onSurfaceVariant
+                        } else {
+                            MaterialTheme.colorScheme.onSurface
+                        },
+                        modifier = Modifier.weight(1f),
+                    )
+                }
+            }
+        }
+    }
+}
+
+/**
+ * Inline "add a subtask" — title only; submits on the tick or the IME action.
+ * A [BasicTextField] (not the boxed Material field) so its text lines up exactly
+ * with the subtask titles, the checkbox column matched by the leading + icon.
+ */
+@Composable
+private fun AddSubtaskField(onAdd: (String) -> Unit) {
+    var text by remember { mutableStateOf("") }
+    fun submit() {
+        if (text.isNotBlank()) {
+            onAdd(text.trim())
+            text = ""
+        }
+    }
+    val accentOn = MaterialTheme.colorScheme.onPrimaryContainer
+    Row(
+        modifier = Modifier.fillMaxWidth().heightIn(min = 56.dp).padding(start = 8.dp, end = 8.dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Box(modifier = Modifier.size(48.dp), contentAlignment = Alignment.Center) {
+            Icon(Icons.Rounded.Add, contentDescription = null, tint = accentOn)
+        }
+        Spacer(Modifier.width(4.dp))
+        BasicTextField(
+            value = text,
+            onValueChange = { text = it },
+            singleLine = true,
+            textStyle = MaterialTheme.typography.bodyLarge.copy(color = accentOn),
+            cursorBrush = SolidColor(accentOn),
+            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
+            keyboardActions = KeyboardActions(onDone = { submit() }),
+            modifier = Modifier.weight(1f),
+            decorationBox = { inner ->
+                if (text.isEmpty()) {
+                    Text(
+                        text = stringResource(R.string.add_task_hint),
+                        style = MaterialTheme.typography.bodyLarge,
+                        color = accentOn.copy(alpha = 0.7f),
+                    )
+                }
+                inner()
+            },
+        )
+        if (text.isNotBlank()) {
+            IconButton(onClick = ::submit) {
+                Icon(Icons.Rounded.Check, contentDescription = stringResource(R.string.cd_add_task), tint = accentOn)
+            }
+        }
+    }
+}
+
+/** One info card: tonal container, leading icon in the gutter, value to the right. */
+@Composable
+private fun DetailCard(
+    icon: ImageVector,
+    iconContentDescription: String?,
+    iconTint: Color = MaterialTheme.colorScheme.onSurfaceVariant,
+    onClick: (() -> Unit)? = null,
+    content: @Composable ColumnScope.() -> Unit,
+) {
+    val shape = RoundedCornerShape(16.dp)
+    val color = MaterialTheme.colorScheme.surfaceContainerHigh
+    val body: @Composable () -> Unit = {
+        Row(
+            modifier = Modifier.padding(16.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Icon(
+                imageVector = icon,
+                contentDescription = iconContentDescription,
+                tint = iconTint,
+                modifier = Modifier.size(24.dp),
+            )
+            Spacer(Modifier.width(16.dp))
+            Column(modifier = Modifier.weight(1f), content = content)
+        }
+    }
+    if (onClick != null) {
+        Surface(onClick = onClick, color = color, shape = shape, modifier = Modifier.fillMaxWidth()) { body() }
+    } else {
+        Surface(color = color, shape = shape, modifier = Modifier.fillMaxWidth()) { body() }
+    }
+}
+
+/**
+ * The task's "when", formatted like Calendula's event time card: a primary date
+ * line and an optional secondary time line. A start+due pair reads as a range;
+ * `null` when the task has no dates at all.
+ */
+@Composable
+private fun taskWhenLines(task: Task): Pair<String, String?>? {
+    val start = task.start
+    val due = task.due
+    return when {
+        start != null && due != null -> {
+            val sameDay = start.formatDate() == due.formatDate()
+            val primary = if (sameDay) due.formatDate() else "${start.formatDate()} – ${due.formatDate()}"
+            val secondary = if (task.isAllDay) null else "${start.formatTime()} – ${due.formatTime()}"
+            primary to secondary
+        }
+        due != null -> due.formatDate() to if (task.isAllDay) null else due.formatTime()
+        start != null -> start.formatDate() to if (task.isAllDay) null else start.formatTime()
+        else -> null
+    }
+}
+
+@Composable
+private fun CenteredMessage(text: String, inner: androidx.compose.foundation.layout.PaddingValues) {
+    Box(
+        modifier = Modifier.fillMaxSize().padding(inner).padding(32.dp),
+        contentAlignment = Alignment.Center,
+    ) {
+        Text(
+            text = text,
+            style = MaterialTheme.typography.bodyLarge,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/detail/TaskDetailViewModel.kt

@@ -1,11 +1,12 @@
-package de.jeanlucmakiola.floret.ui.detail
+package de.jeanlucmakiola.agendula.ui.detail
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskDetail
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskDetail
+import de.jeanlucmakiola.agendula.domain.TaskForm
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharingStarted
@@ -54,4 +55,15 @@ class TaskDetailViewModel @Inject constructor(
     fun delete(task: Task) = viewModelScope.launch {
         runCatching { repository.deleteTask(task.taskId) }
     }
+
+    /** Add a subtask (title only) under the currently-shown task. */
+    fun addSubtask(title: String) = viewModelScope.launch {
+        val parent = (state.value as? TaskDetailUiState.Content)?.detail?.task ?: return@launch
+        if (title.isBlank()) return@launch
+        runCatching {
+            repository.createTask(
+                TaskForm(title = title.trim(), listId = parent.listId, parentId = parent.taskId),
+            )
+        }
+    }
 }

app/src/main/java/de/jeanlucmakiola/agendula/ui/edit/TaskEditScreen.kt

@@ -0,0 +1,995 @@
+package de.jeanlucmakiola.agendula.ui.edit
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.rounded.Notes
+import androidx.compose.material.icons.rounded.AccountTree
+import androidx.compose.material.icons.rounded.Add
+import androidx.compose.material.icons.rounded.ArrowDropDown
+import androidx.compose.material.icons.rounded.Checklist
+import androidx.compose.material.icons.rounded.Circle
+import androidx.compose.material.icons.rounded.Clear
+import androidx.compose.material.icons.rounded.Close
+import androidx.compose.material.icons.rounded.Flag
+import androidx.compose.material.icons.rounded.Notifications
+import androidx.compose.material.icons.rounded.Percent
+import androidx.compose.material.icons.rounded.Schedule
+import androidx.compose.material.icons.rounded.Search
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.DatePicker
+import androidx.compose.material3.DatePickerDialog
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SegmentedButton
+import androidx.compose.material3.SegmentedButtonDefaults
+import androidx.compose.material3.SingleChoiceSegmentedButtonRow
+import androidx.compose.material3.Slider
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TimePicker
+import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.material3.rememberDatePickerState
+import androidx.compose.material3.rememberModalBottomSheetState
+import androidx.compose.material3.rememberTimePickerState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.isSpecified
+import androidx.compose.ui.graphics.luminance
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.floret.time.DayWindow
+import de.jeanlucmakiola.agendula.domain.Priority
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskFormError
+import de.jeanlucmakiola.agendula.domain.TaskFormField
+import de.jeanlucmakiola.agendula.domain.TaskList
+import de.jeanlucmakiola.agendula.domain.TaskSection
+import de.jeanlucmakiola.agendula.domain.TaskSections
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.components.OptionalFormSection
+import de.jeanlucmakiola.floret.components.InlineTextField
+import de.jeanlucmakiola.floret.components.OptionCard
+import de.jeanlucmakiola.agendula.ui.common.priorityFill
+import de.jeanlucmakiola.floret.time.formatDate
+import de.jeanlucmakiola.floret.time.formatTime
+import de.jeanlucmakiola.agendula.ui.common.localToInstant
+import de.jeanlucmakiola.floret.components.pastelize
+import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.agendula.ui.common.toLocalDate
+import de.jeanlucmakiola.agendula.ui.common.toLocalTime
+import de.jeanlucmakiola.agendula.ui.tasklist.priorityLabel
+import java.time.LocalTime
+import java.time.ZoneId
+import java.time.ZoneOffset
+import kotlinx.coroutines.launch
+import kotlin.time.Clock
+import kotlin.time.Instant
+
+/**
+ * Create / edit form, in the family's tonal-card language (mirrors Calendula's
+ * event editor): a borderless headline title with a list-colour accent bar, a
+ * "When" card with the all-day toggle and tappable schedule rows, a tappable
+ * list card, and the optional Description / Priority / Reminder sections that
+ * unfold from "More fields" (which ones start open is a setting). Validated
+ * through the M1 [TaskEditViewModel] / [de.jeanlucmakiola.agendula.domain.TaskForm];
+ * the VM flips `saved` once the write lands, which pops us back.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun TaskEditScreen(
+    onSaved: () -> Unit,
+    onBack: () -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: TaskEditViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    LaunchedEffect(state.saved) { if (state.saved) onSaved() }
+
+    Scaffold(
+        modifier = modifier,
+        topBar = {
+            TopAppBar(
+                title = {},
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        Icon(Icons.Rounded.Close, contentDescription = stringResource(R.string.close))
+                    }
+                },
+                actions = {
+                    Button(
+                        onClick = viewModel::save,
+                        enabled = !state.loading,
+                        modifier = Modifier.padding(end = 12.dp),
+                    ) { Text(stringResource(R.string.save)) }
+                },
+                colors = TopAppBarDefaults.topAppBarColors(
+                    containerColor = MaterialTheme.colorScheme.surface,
+                ),
+            )
+        },
+    ) { inner ->
+        if (state.loading) return@Scaffold
+        EditContent(
+            state = state,
+            viewModel = viewModel,
+            modifier = Modifier.padding(inner),
+        )
+    }
+}
+
+private enum class PickerTarget { Start, Due }
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun EditContent(
+    state: TaskEditUiState,
+    viewModel: TaskEditViewModel,
+    modifier: Modifier = Modifier,
+) {
+    val dark = isSystemInDarkTheme()
+    val selectedList = state.lists.firstOrNull { it.id == state.listId }
+    // The accent ties the form to the detail screen's language: the bar under
+    // the title takes the target list's colour.
+    val accent = selectedList?.let { pastelize(it.color, dark) } ?: MaterialTheme.colorScheme.primary
+    val gap = 12.dp
+
+    var pickerTarget by remember { mutableStateOf<PickerTarget?>(null) }
+    var showListPicker by rememberSaveable { mutableStateOf(false) }
+    var showParentPicker by rememberSaveable { mutableStateOf(false) }
+    var showReminderPicker by rememberSaveable { mutableStateOf(false) }
+    var showFieldPicker by rememberSaveable { mutableStateOf(false) }
+
+    Column(
+        modifier = modifier
+            // Shrink the scroll viewport by the keyboard so the focused field
+            // scrolls into view above the IME instead of being hidden.
+            .imePadding()
+            .verticalScroll(rememberScrollState())
+            .padding(start = 24.dp, end = 24.dp, top = 8.dp, bottom = 40.dp),
+    ) {
+        // Title: borderless headline + accent bar, mirroring the detail screen.
+        InlineField(
+            value = state.title,
+            onValueChange = viewModel::onTitleChange,
+            placeholder = stringResource(R.string.edit_title_hint),
+            textStyle = MaterialTheme.typography.headlineMedium.copy(fontWeight = FontWeight.SemiBold),
+        )
+        Spacer(Modifier.height(10.dp))
+        Box(
+            modifier = Modifier
+                .width(48.dp)
+                .height(3.dp)
+                .background(accent, RoundedCornerShape(2.dp)),
+        )
+        if (TaskFormError.BLANK_TITLE in state.errors) {
+            Spacer(Modifier.height(6.dp))
+            FieldError(R.string.error_blank_title)
+        }
+
+        Spacer(Modifier.height(20.dp))
+
+        // "When" card: the icon centres on the all-day row (header); the start /
+        // due rows continue below in the same text column.
+        EditCard(
+            icon = Icons.Rounded.Schedule,
+            iconContentDescription = stringResource(R.string.edit_when),
+            header = {
+                Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+                    Text(
+                        text = stringResource(R.string.edit_all_day),
+                        style = MaterialTheme.typography.titleMedium,
+                        modifier = Modifier.weight(1f),
+                    )
+                    Switch(checked = state.isAllDay, onCheckedChange = viewModel::onAllDayChange)
+                }
+            },
+        ) {
+            Spacer(Modifier.height(4.dp))
+            ScheduleRow(
+                label = stringResource(R.string.edit_start_label),
+                value = state.start,
+                allDay = state.isAllDay,
+                onPick = { pickerTarget = PickerTarget.Start },
+                onClear = { viewModel.onStartChange(null) },
+            )
+            ScheduleRow(
+                label = stringResource(R.string.edit_due_label),
+                value = state.due,
+                allDay = state.isAllDay,
+                onPick = { pickerTarget = PickerTarget.Due },
+                onClear = { viewModel.onDueChange(null) },
+                isError = TaskFormError.DUE_BEFORE_START in state.errors,
+            )
+            if (TaskFormError.DUE_BEFORE_START in state.errors) {
+                Spacer(Modifier.height(2.dp))
+                FieldError(R.string.error_due_before_start)
+            }
+        }
+
+        Spacer(Modifier.height(gap))
+
+        // List card — tap anywhere to pick the target list.
+        EditCard(
+            icon = Icons.Rounded.Checklist,
+            iconContentDescription = stringResource(R.string.edit_list_label),
+            iconTint = accent,
+            onClick = { showListPicker = true }.takeIf { state.lists.isNotEmpty() },
+        ) {
+            Text(
+                text = selectedList?.name ?: stringResource(R.string.error_no_list),
+                style = MaterialTheme.typography.titleMedium,
+                color = if (selectedList == null) MaterialTheme.colorScheme.error else Color.Unspecified,
+            )
+            selectedList?.accountName?.takeIf { it.isNotBlank() }?.let { account ->
+                Text(
+                    text = account,
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+
+        // Optional sections: which start open is a setting; the rest unfold
+        // behind the "More fields" button below.
+        OptionalFormSection(visible = TaskFormField.Description in state.visibleFields) {
+            Spacer(Modifier.height(gap))
+            EditCard(
+                icon = Icons.AutoMirrored.Rounded.Notes,
+                iconContentDescription = stringResource(R.string.field_description),
+                iconAtTop = true,
+            ) {
+                InlineField(
+                    value = state.description,
+                    onValueChange = viewModel::onDescriptionChange,
+                    placeholder = stringResource(R.string.field_description),
+                    singleLine = false,
+                    minLines = 3,
+                )
+            }
+        }
+
+        OptionalFormSection(visible = TaskFormField.Priority in state.visibleFields) {
+            Spacer(Modifier.height(gap))
+            // Not an EditCard: the four buttons need the card's full width, so
+            // the label sits on its own row above rather than in the indented
+            // icon-gutter column (where "Medium" would wrap to a second line).
+            Surface(
+                color = MaterialTheme.colorScheme.surfaceContainerHigh,
+                shape = RoundedCornerShape(16.dp),
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                Column(modifier = Modifier.padding(16.dp)) {
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Icon(
+                            Icons.Rounded.Flag,
+                            contentDescription = null,
+                            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.size(24.dp),
+                        )
+                        Spacer(Modifier.width(16.dp))
+                        Text(
+                            text = stringResource(R.string.edit_priority_label),
+                            style = MaterialTheme.typography.titleMedium,
+                        )
+                    }
+                    Spacer(Modifier.height(12.dp))
+                    // The M3 single-select segmented row, but the active segment
+                    // takes its priority hue so the choice reads in colour.
+                    SingleChoiceSegmentedButtonRow(modifier = Modifier.fillMaxWidth()) {
+                        Priority.entries.forEachIndexed { index, priority ->
+                            val fill = priorityFill(priority, dark)
+                            val active = fill.isSpecified
+                            SegmentedButton(
+                                selected = state.priority == priority,
+                                onClick = { viewModel.onPriorityChange(priority) },
+                                shape = SegmentedButtonDefaults.itemShape(index, Priority.entries.size),
+                                colors = SegmentedButtonDefaults.colors(
+                                    activeContainerColor = if (active) fill else MaterialTheme.colorScheme.secondaryContainer,
+                                    activeContentColor = when {
+                                        !active -> MaterialTheme.colorScheme.onSecondaryContainer
+                                        fill.luminance() > 0.5f -> Color.Black
+                                        else -> Color.White
+                                    },
+                                ),
+                                // Drop the selected-check icon; with four buttons its
+                                // reserved width is what crowds the labels.
+                                icon = {},
+                            ) {
+                                Text(
+                                    text = priorityLabel(priority),
+                                    maxLines = 1,
+                                    style = MaterialTheme.typography.labelLarge,
+                                )
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        OptionalFormSection(visible = TaskFormField.Progress in state.visibleFields) {
+            Spacer(Modifier.height(gap))
+            val pct = state.percentComplete ?: 0
+            // Full-width like Priority: the slider needs the card's whole width,
+            // so the label/readout sit on a header row above it.
+            Surface(
+                color = MaterialTheme.colorScheme.surfaceContainerHigh,
+                shape = RoundedCornerShape(16.dp),
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                Column(modifier = Modifier.padding(16.dp)) {
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Icon(
+                            Icons.Rounded.Percent,
+                            contentDescription = null,
+                            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.size(24.dp),
+                        )
+                        Spacer(Modifier.width(16.dp))
+                        Text(
+                            text = stringResource(R.string.edit_progress_label),
+                            style = MaterialTheme.typography.titleMedium,
+                            modifier = Modifier.weight(1f),
+                        )
+                        Text(
+                            text = stringResource(R.string.percent_complete, pct),
+                            style = MaterialTheme.typography.titleMedium,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                    Spacer(Modifier.height(4.dp))
+                    Slider(
+                        value = pct.toFloat(),
+                        onValueChange = { viewModel.onPercentChange(it.toInt()) },
+                        valueRange = 0f..100f,
+                        steps = 19, // 5% detents
+                    )
+                }
+            }
+        }
+
+        OptionalFormSection(visible = TaskFormField.Parent in state.visibleFields) {
+            Spacer(Modifier.height(gap))
+            EditCard(
+                icon = Icons.Rounded.AccountTree,
+                iconContentDescription = stringResource(R.string.edit_parent_label),
+                onClick = { showParentPicker = true },
+            ) {
+                Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+                    Column(modifier = Modifier.weight(1f)) {
+                        Text(
+                            text = state.parent?.title?.ifBlank { stringResource(R.string.task_untitled) }
+                                ?: stringResource(R.string.edit_parent_none),
+                            style = MaterialTheme.typography.titleMedium,
+                        )
+                        Text(
+                            text = stringResource(R.string.edit_parent_label),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                    Icon(
+                        imageVector = Icons.Rounded.ArrowDropDown,
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+        }
+
+        OptionalFormSection(visible = TaskFormField.Reminder in state.visibleFields) {
+            Spacer(Modifier.height(gap))
+            EditCard(
+                icon = Icons.Rounded.Notifications,
+                iconContentDescription = null,
+                onClick = { showReminderPicker = true },
+            ) {
+                Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+                    Column(modifier = Modifier.weight(1f)) {
+                        Text(
+                            text = stringResource(reminderOptionFor(state.reminderMinutesBeforeDue).labelRes),
+                            style = MaterialTheme.typography.titleMedium,
+                        )
+                        Text(
+                            text = stringResource(R.string.edit_reminder_label),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                    Icon(
+                        imageVector = Icons.Rounded.ArrowDropDown,
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+                if (TaskFormError.REMINDER_WITHOUT_DUE in state.errors) {
+                    Spacer(Modifier.height(2.dp))
+                    FieldError(R.string.error_reminder_without_due)
+                }
+            }
+        }
+
+        OptionalFormSection(visible = state.hiddenFields.isNotEmpty()) {
+            Spacer(Modifier.height(20.dp))
+            TextButton(
+                onClick = { showFieldPicker = true },
+                modifier = Modifier.align(Alignment.CenterHorizontally),
+            ) {
+                Icon(Icons.Rounded.Add, contentDescription = null, modifier = Modifier.size(18.dp))
+                Spacer(Modifier.width(8.dp))
+                Text(stringResource(R.string.edit_more_fields))
+            }
+        }
+
+        if (state.saveFailed) {
+            Spacer(Modifier.height(gap))
+            FieldError(R.string.edit_save_failed)
+        }
+    }
+
+    pickerTarget?.let { target ->
+        val current = if (target == PickerTarget.Start) state.start else state.due
+        DateTimePickerFlow(
+            initial = current,
+            allDay = state.isAllDay,
+            onResult = {
+                if (target == PickerTarget.Start) viewModel.onStartChange(it) else viewModel.onDueChange(it)
+                pickerTarget = null
+            },
+            onDismiss = { pickerTarget = null },
+        )
+    }
+
+    if (showListPicker) {
+        ListPickerDialog(
+            lists = state.lists,
+            selectedId = state.listId,
+            onSelect = { viewModel.onListChange(it); showListPicker = false },
+            onDismiss = { showListPicker = false },
+        )
+    }
+
+    if (showParentPicker) {
+        ParentPickerSheet(
+            candidates = state.parentCandidates,
+            selectedId = state.parentId,
+            onSelect = { viewModel.onParentChange(it); showParentPicker = false },
+            onDismiss = { showParentPicker = false },
+        )
+    }
+
+    if (state.saveConflict) {
+        AlertDialog(
+            onDismissRequest = viewModel::dismissConflict,
+            title = { Text(stringResource(R.string.edit_conflict_title)) },
+            text = { Text(stringResource(R.string.edit_conflict_body)) },
+            confirmButton = {
+                TextButton(onClick = { viewModel.save(force = true) }) {
+                    Text(stringResource(R.string.edit_conflict_overwrite))
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = viewModel::dismissConflict) { Text(stringResource(R.string.dialog_cancel)) }
+            },
+        )
+    }
+
+    if (showReminderPicker) {
+        ReminderPickerDialog(
+            selected = state.reminderMinutesBeforeDue,
+            onSelect = { viewModel.onReminderChange(it); showReminderPicker = false },
+            onDismiss = { showReminderPicker = false },
+        )
+    }
+
+    if (showFieldPicker) {
+        FieldPickerDialog(
+            hiddenFields = state.hiddenFields,
+            onSelect = { viewModel.revealField(it); showFieldPicker = false },
+            onDismiss = { showFieldPicker = false },
+        )
+    }
+}
+
+/**
+ * Wrapper for an optional form section: fields added via "More fields" spring
+ * open instead of popping in. (Initially-visible sections render without
+ * animating on the first frame they're added.)
+ */
+/**
+ * One info card mirroring the detail screen's card: tonal container, leading
+ * icon in the gutter, value to the right. Optionally clickable as a whole.
+ */
+@Composable
+private fun EditCard(
+    icon: ImageVector,
+    iconContentDescription: String?,
+    iconTint: Color = MaterialTheme.colorScheme.onSurfaceVariant,
+    onClick: (() -> Unit)? = null,
+    // Multiline-input cards align the icon with the field's first text line.
+    iconAtTop: Boolean = false,
+    // Tall cards pass their first row here: the icon centres on it, and
+    // [content] continues below, indented to the same text column.
+    header: (@Composable ColumnScope.() -> Unit)? = null,
+    content: @Composable ColumnScope.() -> Unit,
+) {
+    val shape = RoundedCornerShape(16.dp)
+    val color = MaterialTheme.colorScheme.surfaceContainerHigh
+    val inner: @Composable () -> Unit = {
+        if (header != null) {
+            Column(modifier = Modifier.padding(16.dp)) {
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    Icon(icon, iconContentDescription, tint = iconTint, modifier = Modifier.size(24.dp))
+                    Spacer(Modifier.width(16.dp))
+                    Column(modifier = Modifier.weight(1f), content = header)
+                }
+                Column(modifier = Modifier.padding(start = 40.dp), content = content)
+            }
+        } else {
+            Row(
+                modifier = Modifier.padding(16.dp),
+                verticalAlignment = if (iconAtTop) Alignment.Top else Alignment.CenterVertically,
+            ) {
+                Icon(
+                    imageVector = icon,
+                    contentDescription = iconContentDescription,
+                    tint = iconTint,
+                    // 4dp mirrors InlineField's vertical padding, so a
+                    // top-aligned icon centres on the first text line.
+                    modifier = Modifier
+                        .padding(top = if (iconAtTop) 4.dp else 0.dp)
+                        .size(24.dp),
+                )
+                Spacer(Modifier.width(16.dp))
+                Column(modifier = Modifier.weight(1f), content = content)
+            }
+        }
+    }
+    if (onClick != null) {
+        Surface(onClick = onClick, color = color, shape = shape, modifier = Modifier.fillMaxWidth()) { inner() }
+    } else {
+        Surface(color = color, shape = shape, modifier = Modifier.fillMaxWidth()) { inner() }
+    }
+}
+
+/**
+ * Borderless input used inside the cards (and as the headline title) — a thin
+ * wrapper over the shared [InlineTextField] so the form and the rest of the app
+ * share one input style.
+ */
+@Composable
+private fun InlineField(
+    value: String,
+    onValueChange: (String) -> Unit,
+    placeholder: String,
+    textStyle: androidx.compose.ui.text.TextStyle = MaterialTheme.typography.titleMedium,
+    singleLine: Boolean = true,
+    minLines: Int = 1,
+) {
+    InlineTextField(
+        value = value,
+        onValueChange = onValueChange,
+        placeholder = placeholder,
+        textStyle = textStyle,
+        singleLine = singleLine,
+        minLines = minLines,
+    )
+}
+
+/**
+ * One schedule row: label, then the tappable date and (unless all-day) time —
+ * or "Set" when empty. Tapping runs the date → time picker flow; a clear
+ * affordance appears once a value is set. Tappable values read as links
+ * (primary); an error flips them to the error colour.
+ */
+@Composable
+private fun ScheduleRow(
+    label: String,
+    value: Instant?,
+    allDay: Boolean,
+    onPick: () -> Unit,
+    onClear: () -> Unit,
+    isError: Boolean = false,
+) {
+    val valueColor = if (isError) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary
+    Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+        Text(
+            text = label,
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.weight(1f),
+        )
+        if (value == null) {
+            Text(
+                text = stringResource(R.string.edit_set),
+                style = MaterialTheme.typography.titleMedium,
+                color = MaterialTheme.colorScheme.primary,
+                modifier = Modifier.clickable(onClick = onPick).padding(vertical = 8.dp, horizontal = 6.dp),
+            )
+        } else {
+            Text(
+                text = value.formatDate(),
+                style = MaterialTheme.typography.titleMedium,
+                color = valueColor,
+                modifier = Modifier.clickable(onClick = onPick).padding(vertical = 8.dp, horizontal = 6.dp),
+            )
+            if (!allDay) {
+                Text(
+                    text = value.formatTime(),
+                    style = MaterialTheme.typography.titleMedium,
+                    color = valueColor,
+                    modifier = Modifier.clickable(onClick = onPick).padding(vertical = 8.dp, horizontal = 6.dp),
+                )
+            }
+            IconButton(onClick = onClear, modifier = Modifier.size(40.dp)) {
+                Icon(
+                    Icons.Rounded.Clear,
+                    contentDescription = stringResource(R.string.edit_clear),
+                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.size(20.dp),
+                )
+            }
+        }
+    }
+}
+
+private fun nowInstant(): Instant = Instant.fromEpochMilliseconds(System.currentTimeMillis())
+
+/** Pick a date, then (unless all-day) a time; emits the combined instant once. */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun DateTimePickerFlow(
+    initial: Instant?,
+    allDay: Boolean,
+    onResult: (Instant) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    var pendingDate by remember { mutableStateOf<java.time.LocalDate?>(null) }
+    var showTime by remember { mutableStateOf(false) }
+
+    if (!showTime) {
+        val initialMillis = (initial ?: nowInstant())
+            .toLocalDate().atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli()
+        val dateState = rememberDatePickerState(initialSelectedDateMillis = initialMillis)
+        DatePickerDialog(
+            onDismissRequest = onDismiss,
+            confirmButton = {
+                TextButton(onClick = {
+                    val millis = dateState.selectedDateMillis ?: run { onDismiss(); return@TextButton }
+                    val date = java.time.Instant.ofEpochMilli(millis).atZone(ZoneOffset.UTC).toLocalDate()
+                    if (allDay) {
+                        onResult(localToInstant(date, LocalTime.MIDNIGHT))
+                    } else {
+                        pendingDate = date
+                        showTime = true
+                    }
+                }) { Text(stringResource(android.R.string.ok)) }
+            },
+            dismissButton = {
+                TextButton(onClick = onDismiss) { Text(stringResource(android.R.string.cancel)) }
+            },
+        ) { DatePicker(state = dateState) }
+    } else {
+        val base = initial ?: nowInstant()
+        val timeState = rememberTimePickerState(
+            initialHour = base.toLocalTime().hour,
+            initialMinute = base.toLocalTime().minute,
+        )
+        AlertDialog(
+            onDismissRequest = onDismiss,
+            text = { TimePicker(state = timeState) },
+            confirmButton = {
+                TextButton(onClick = {
+                    val date = pendingDate ?: return@TextButton
+                    onResult(localToInstant(date, LocalTime.of(timeState.hour, timeState.minute)))
+                }) { Text(stringResource(android.R.string.ok)) }
+            },
+            dismissButton = {
+                TextButton(onClick = onDismiss) { Text(stringResource(android.R.string.cancel)) }
+            },
+        )
+    }
+}
+
+@Composable
+private fun ListPickerDialog(
+    lists: List<TaskList>,
+    selectedId: Long?,
+    onSelect: (Long) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val dark = isSystemInDarkTheme()
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(stringResource(R.string.edit_list_label)) },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                lists.forEach { list ->
+                    OptionCard(
+                        label = list.name,
+                        onClick = { onSelect(list.id) },
+                        icon = Icons.Rounded.Circle,
+                        iconTint = pastelize(list.color, dark),
+                        supportingText = list.accountName.takeIf { it.isNotBlank() },
+                        selected = list.id == selectedId,
+                    )
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onDismiss) { Text(stringResource(R.string.dialog_cancel)) }
+        },
+    )
+}
+
+/**
+ * Pick the task to file this one under, or "None" to keep it top-level. A
+ * full-width modal sheet (not a cramped dialog): a search field filters by title,
+ * and candidates group under the same due-date sections as the task list
+ * (Overdue / Today / Upcoming / No date) so the right one is easy to find in a
+ * long list. Only active tasks are offered (the VM filters closed ones out).
+ */
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalFoundationApi::class)
+@Composable
+private fun ParentPickerSheet(
+    candidates: List<Task>,
+    selectedId: Long?,
+    onSelect: (Long?) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
+    val scope = rememberCoroutineScope()
+    // Animate the sheet out before reporting the pick, so it doesn't snap shut.
+    fun choose(id: Long?) {
+        scope.launch { sheetState.hide() }.invokeOnCompletion {
+            if (!sheetState.isVisible) onSelect(id)
+        }
+    }
+
+    var query by rememberSaveable { mutableStateOf("") }
+    val filtered = remember(candidates, query) {
+        val q = query.trim()
+        if (q.isEmpty()) candidates else candidates.filter { it.title.contains(q, ignoreCase = true) }
+    }
+    val (todayStart, todayEnd) = remember { DayWindow.today(Clock.System.now(), ZoneId.systemDefault()) }
+    val sections = remember(filtered) { TaskSections.of(filtered, todayStart, todayEnd) }
+
+    ModalBottomSheet(onDismissRequest = onDismiss, sheetState = sheetState) {
+        LazyColumn(
+            modifier = Modifier.fillMaxWidth(),
+            contentPadding = PaddingValues(bottom = 32.dp),
+        ) {
+            item(key = "title") {
+                Text(
+                    text = stringResource(R.string.edit_parent_label),
+                    style = MaterialTheme.typography.titleLarge,
+                    modifier = Modifier.padding(start = 24.dp, end = 24.dp, bottom = 12.dp),
+                )
+            }
+            // The search field pins to the top of the sheet while the list scrolls.
+            stickyHeader(key = "search") {
+                Surface(color = MaterialTheme.colorScheme.surfaceContainerLow, modifier = Modifier.fillMaxWidth()) {
+                    OutlinedTextField(
+                        value = query,
+                        onValueChange = { query = it },
+                        singleLine = true,
+                        leadingIcon = { Icon(Icons.Rounded.Search, contentDescription = null) },
+                        trailingIcon = {
+                            if (query.isNotEmpty()) {
+                                IconButton(onClick = { query = "" }) {
+                                    Icon(Icons.Rounded.Clear, contentDescription = stringResource(R.string.edit_clear))
+                                }
+                            }
+                        },
+                        placeholder = { Text(stringResource(R.string.edit_parent_search)) },
+                        shape = RoundedCornerShape(28.dp),
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(start = 16.dp, end = 16.dp, top = 4.dp, bottom = 12.dp),
+                    )
+                }
+            }
+            // "None" — promote to top-level. Pinned above the grouped candidates.
+            item(key = "none") {
+                GroupedRow(
+                    title = stringResource(R.string.edit_parent_none),
+                    position = de.jeanlucmakiola.floret.components.Position.Alone,
+                    selected = selectedId == null,
+                    minHeight = 56.dp,
+                    onClick = { choose(null) },
+                    modifier = Modifier.padding(bottom = 4.dp),
+                )
+            }
+
+            if (sections.isEmpty()) {
+                item(key = "empty") {
+                    Text(
+                        text = stringResource(R.string.edit_parent_empty),
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(horizontal = 28.dp, vertical = 24.dp),
+                    )
+                }
+            }
+
+            sections.forEach { section ->
+                stickyHeader(key = "hdr-${section.section}") {
+                    SheetSectionHeader(parentSectionLabel(section.section))
+                }
+                itemsIndexed(section.tasks, key = { _, t -> t.taskId }) { index, task ->
+                    GroupedRow(
+                        title = task.title.ifBlank { stringResource(R.string.task_untitled) },
+                        position = positionOf(index, section.tasks.size),
+                        summary = task.due?.formatDate(),
+                        selected = task.taskId == selectedId,
+                        minHeight = 56.dp,
+                        onClick = { choose(task.taskId) },
+                    )
+                }
+            }
+        }
+    }
+}
+
+/** Section header inside the parent sheet — opaque so rows scroll cleanly under it. */
+@Composable
+private fun SheetSectionHeader(text: String) {
+    Surface(color = MaterialTheme.colorScheme.surfaceContainerLow, modifier = Modifier.fillMaxWidth()) {
+        Text(
+            text = text,
+            style = MaterialTheme.typography.titleSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.padding(start = 28.dp, end = 28.dp, top = 12.dp, bottom = 6.dp),
+        )
+    }
+}
+
+@Composable
+private fun parentSectionLabel(section: TaskSection): String = stringResource(
+    when (section) {
+        TaskSection.OVERDUE -> R.string.section_overdue
+        TaskSection.TODAY -> R.string.section_today
+        TaskSection.UPCOMING -> R.string.section_upcoming
+        TaskSection.NO_DATE -> R.string.section_no_date
+        TaskSection.COMPLETED -> R.string.section_completed
+    },
+)
+
+@Composable
+private fun ReminderPickerDialog(
+    selected: Int?,
+    onSelect: (Int?) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(stringResource(R.string.edit_reminder_label)) },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                reminderOptions.forEach { option ->
+                    OptionCard(
+                        label = stringResource(option.labelRes),
+                        onClick = { onSelect(option.minutes) },
+                        selected = option.minutes == selected,
+                    )
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onDismiss) { Text(stringResource(R.string.dialog_cancel)) }
+        },
+    )
+}
+
+/** Picks one hidden optional section to add to the form. */
+@Composable
+private fun FieldPickerDialog(
+    hiddenFields: List<TaskFormField>,
+    onSelect: (TaskFormField) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(stringResource(R.string.edit_more_fields)) },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                hiddenFields.forEach { field ->
+                    OptionCard(
+                        label = stringResource(fieldLabel(field)),
+                        onClick = { onSelect(field) },
+                        icon = fieldIcon(field),
+                    )
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onDismiss) { Text(stringResource(R.string.dialog_cancel)) }
+        },
+    )
+}
+
+private fun fieldLabel(field: TaskFormField): Int = when (field) {
+    TaskFormField.Description -> R.string.field_description
+    TaskFormField.Priority -> R.string.edit_priority_label
+    TaskFormField.Progress -> R.string.edit_progress_label
+    TaskFormField.Parent -> R.string.edit_parent_label
+    TaskFormField.Reminder -> R.string.edit_reminder_label
+}
+
+private fun fieldIcon(field: TaskFormField): ImageVector = when (field) {
+    TaskFormField.Description -> Icons.AutoMirrored.Rounded.Notes
+    TaskFormField.Priority -> Icons.Rounded.Flag
+    TaskFormField.Progress -> Icons.Rounded.Percent
+    TaskFormField.Parent -> Icons.Rounded.AccountTree
+    TaskFormField.Reminder -> Icons.Rounded.Notifications
+}
+
+private data class ReminderOption(val labelRes: Int, val minutes: Int?)
+
+private val reminderOptions = listOf(
+    ReminderOption(R.string.reminder_none, null),
+    ReminderOption(R.string.reminder_at_due, 0),
+    ReminderOption(R.string.reminder_5_min, 5),
+    ReminderOption(R.string.reminder_10_min, 10),
+    ReminderOption(R.string.reminder_30_min, 30),
+    ReminderOption(R.string.reminder_1_hour, 60),
+    ReminderOption(R.string.reminder_1_day, 1_440),
+)
+
+private fun reminderOptionFor(minutes: Int?): ReminderOption =
+    reminderOptions.firstOrNull { it.minutes == minutes } ?: reminderOptions.first()
+
+@Composable
+private fun FieldError(messageRes: Int) {
+    Text(
+        text = stringResource(messageRes),
+        color = MaterialTheme.colorScheme.error,
+        style = MaterialTheme.typography.bodySmall,
+        modifier = Modifier.padding(start = 4.dp),
+    )
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/edit/TaskEditViewModel.kt

@@ -0,0 +1,237 @@
+package de.jeanlucmakiola.agendula.ui.edit
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.agendula.data.reminders.ReminderScheduler
+import de.jeanlucmakiola.agendula.data.tasks.TaskConflictException
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.agendula.domain.Priority
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import de.jeanlucmakiola.agendula.domain.TaskFormError
+import de.jeanlucmakiola.agendula.domain.TaskFormField
+import de.jeanlucmakiola.agendula.domain.TaskList
+import de.jeanlucmakiola.agendula.domain.populatedFields
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+import kotlin.time.Instant
+
+/**
+ * Editable form state for creating or editing a task. The screen renders these
+ * fields and calls the `on*` setters; [save] validates, writes, re-syncs
+ * reminders, and flips [TaskEditUiState.saved] for the screen to navigate back.
+ */
+data class TaskEditUiState(
+    val loading: Boolean = true,
+    val isNew: Boolean = true,
+    val title: String = "",
+    val description: String = "",
+    val listId: Long? = null,
+    val start: Instant? = null,
+    val due: Instant? = null,
+    val isAllDay: Boolean = false,
+    val priority: Priority = Priority.NONE,
+    val parentId: Long? = null,
+    val percentComplete: Int? = null,
+    val reminderMinutesBeforeDue: Int? = null,
+    val lists: List<TaskList> = emptyList(),
+    /** Top-level tasks in the current list this task can be filed under (reparent). */
+    val parentCandidates: List<Task> = emptyList(),
+    /** Optional sections currently shown (core Title / List / When are always on). */
+    val visibleFields: Set<TaskFormField> = emptySet(),
+    /** Optional sections still tucked behind "More fields". */
+    val hiddenFields: List<TaskFormField> = emptyList(),
+    val errors: Set<TaskFormError> = emptySet(),
+    val saveFailed: Boolean = false,
+    /** The task changed underneath us; the screen asks to overwrite or cancel. */
+    val saveConflict: Boolean = false,
+    val saved: Boolean = false,
+) {
+    /** The currently-selected parent task, if this task is filed under one. */
+    val parent: Task? get() = parentCandidates.firstOrNull { it.taskId == parentId }
+}
+
+@HiltViewModel
+class TaskEditViewModel @Inject constructor(
+    private val repository: TasksRepository,
+    private val settingsPrefs: SettingsPrefs,
+    private val reminderScheduler: ReminderScheduler,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow(TaskEditUiState())
+    val state: StateFlow<TaskEditUiState> = _state.asStateFlow()
+
+    private var editingTaskId: Long? = null
+
+    /** `last_modified` captured when the form loaded — the conflict-check baseline. */
+    private var baselineLastModified: Instant? = null
+
+    /** Sections shown by default (a setting); the rest unfold via [revealField]. */
+    private var defaultFields: Set<TaskFormField> = emptySet()
+
+    /** Start a fresh task, optionally pre-selecting a list / parent. */
+    fun bindNew(presetListId: Long? = null, parentId: Long? = null) {
+        editingTaskId = null
+        baselineLastModified = null
+        viewModelScope.launch {
+            val settings = settingsPrefs.settings.first()
+            defaultFields = settings.defaultEditFields
+            val lists = runCatching { repository.taskLists().first() }.getOrElse { emptyList() }
+            val defaultList = presetListId
+                ?: settings.defaultListId
+                ?: lists.firstOrNull { !it.isLocal }?.id
+                ?: lists.firstOrNull()?.id
+            _state.value = withFields(
+                TaskEditUiState(
+                    loading = false,
+                    isNew = true,
+                    listId = defaultList,
+                    parentId = parentId,
+                    lists = lists,
+                    parentCandidates = loadParents(defaultList, selfId = null),
+                ),
+            )
+        }
+    }
+
+    /** Load an existing task for editing. */
+    fun bindEdit(taskId: Long) {
+        editingTaskId = taskId
+        viewModelScope.launch {
+            defaultFields = settingsPrefs.settings.first().defaultEditFields
+            val lists = runCatching { repository.taskLists().first() }.getOrElse { emptyList() }
+            val task = runCatching { repository.taskDetail(taskId).first()?.task }.getOrNull()
+            if (task == null) {
+                _state.value = _state.value.copy(loading = false, lists = lists)
+                return@launch
+            }
+            baselineLastModified = task.lastModified
+            _state.value = withFields(
+                TaskEditUiState(
+                    loading = false,
+                    isNew = false,
+                    title = task.title,
+                    description = task.description.orEmpty(),
+                    listId = task.listId,
+                    start = task.start,
+                    due = task.due,
+                    isAllDay = task.isAllDay,
+                    priority = task.priority,
+                    parentId = task.parentId,
+                    percentComplete = task.percentComplete,
+                    lists = lists,
+                    parentCandidates = loadParents(task.listId, selfId = taskId),
+                ),
+            )
+        }
+    }
+
+    /**
+     * Tasks the edited task can be filed under: active, top-level tasks in
+     * [listId], minus the task itself (a task can't parent itself). Restricting to
+     * top-level keeps the hierarchy one level deep (matching the detail screen),
+     * and to active so you don't file work under something already done/cancelled.
+     */
+    private suspend fun loadParents(listId: Long?, selfId: Long?): List<Task> {
+        if (listId == null) return emptyList()
+        val tasks = runCatching { repository.tasks(TaskFilter.OfList(listId)).first() }.getOrElse { emptyList() }
+        return tasks.filter { !it.isClosed && !it.isSubtask && it.taskId != selfId }
+    }
+
+    /** Reveal an optional section (one tap from the "More fields" picker). */
+    fun revealField(field: TaskFormField) = update {
+        val visible = it.visibleFields + field
+        it.copy(visibleFields = visible, hiddenFields = hiddenOf(visible))
+    }
+
+    /**
+     * Resolve which optional sections are visible: the default set, plus any
+     * field that already carries a value (so editing never hides real data).
+     */
+    private fun withFields(state: TaskEditUiState): TaskEditUiState {
+        val visible = defaultFields + state.toForm().populatedFields()
+        return state.copy(visibleFields = visible, hiddenFields = hiddenOf(visible))
+    }
+
+    private fun hiddenOf(visible: Set<TaskFormField>): List<TaskFormField> =
+        TaskFormField.entries.filterNot { it in visible }
+
+    fun onTitleChange(value: String) = update { it.copy(title = value, errors = emptySet()) }
+    fun onDescriptionChange(value: String) = update { it.copy(description = value) }
+
+    /** Switching list invalidates the parent (it lived in the old list); reload candidates. */
+    fun onListChange(listId: Long) {
+        if (_state.value.listId == listId) return // re-picking the same list keeps the parent
+        update { it.copy(listId = listId, parentId = null, errors = emptySet()) }
+        viewModelScope.launch {
+            val candidates = loadParents(listId, selfId = editingTaskId)
+            update { it.copy(parentCandidates = candidates) }
+        }
+    }
+
+    fun onStartChange(value: Instant?) = update { it.copy(start = value) }
+    fun onDueChange(value: Instant?) = update { it.copy(due = value) }
+    fun onAllDayChange(value: Boolean) = update { it.copy(isAllDay = value) }
+    fun onPriorityChange(value: Priority) = update { it.copy(priority = value) }
+    fun onPercentChange(value: Int?) = update { it.copy(percentComplete = value?.coerceIn(0, 100)) }
+    fun onParentChange(parentId: Long?) = update { it.copy(parentId = parentId) }
+    fun onReminderChange(minutesBeforeDue: Int?) = update { it.copy(reminderMinutesBeforeDue = minutesBeforeDue) }
+
+    /** Dismiss the conflict prompt without saving (the user keeps editing). */
+    fun dismissConflict() = update { it.copy(saveConflict = false) }
+
+    /** [force] = overwrite even if the task changed since it loaded (conflict prompt). */
+    fun save(force: Boolean = false) {
+        val current = _state.value
+        val form = current.toForm()
+        val errors = form.validate()
+        if (errors.isNotEmpty()) {
+            _state.value = current.copy(errors = errors)
+            return
+        }
+        viewModelScope.launch {
+            runCatching {
+                val id = editingTaskId
+                if (id == null) {
+                    repository.createTask(form)
+                } else {
+                    repository.updateTask(id, form, expectedLastModified = if (force) null else baselineLastModified)
+                }
+                reminderScheduler.sync()
+            }.onSuccess {
+                _state.value = _state.value.copy(saved = true, saveFailed = false, saveConflict = false)
+            }.onFailure { error ->
+                _state.value = if (error is TaskConflictException) {
+                    _state.value.copy(saveConflict = true, saveFailed = false)
+                } else {
+                    _state.value.copy(saveFailed = true)
+                }
+            }
+        }
+    }
+
+    private inline fun update(block: (TaskEditUiState) -> TaskEditUiState) {
+        _state.value = block(_state.value)
+    }
+}
+
+/** Snapshot the editable state as a validated [TaskForm]. */
+private fun TaskEditUiState.toForm(): TaskForm = TaskForm(
+    title = title,
+    listId = listId ?: 0L,
+    description = description.ifBlank { null },
+    start = start,
+    due = due,
+    isAllDay = isAllDay,
+    priority = priority,
+    parentId = parentId,
+    percentComplete = percentComplete,
+    reminderMinutesBeforeDue = reminderMinutesBeforeDue,
+)

app/src/main/java/de/jeanlucmakiola/agendula/ui/lists/ListsScreen.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.ui.lists
+package de.jeanlucmakiola.agendula.ui.lists
 
 import androidx.compose.animation.core.animateDpAsState
 import androidx.compose.foundation.interaction.MutableInteractionSource
@@ -20,6 +20,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.rounded.ListAlt
 import androidx.compose.material.icons.rounded.Add
 import androidx.compose.material.icons.rounded.ErrorOutline
+import androidx.compose.material.icons.rounded.Settings
 import androidx.compose.material.icons.rounded.Today
 import androidx.compose.material.icons.rounded.Upcoming
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -44,12 +45,14 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import de.jeanlucmakiola.floret.R
-import de.jeanlucmakiola.floret.domain.SmartList
-import de.jeanlucmakiola.floret.domain.TaskFilter
-import de.jeanlucmakiola.floret.ui.common.GroupedRow
-import de.jeanlucmakiola.floret.ui.common.ListColorChip
-import de.jeanlucmakiola.floret.ui.common.positionOf
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.agendula.domain.SmartList
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.ui.common.ActionShapes
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.agendula.ui.common.ListColorChip
+import de.jeanlucmakiola.agendula.ui.common.ShapedActionButton
+import de.jeanlucmakiola.floret.components.positionOf
 
 /**
  * Home: smart lists (Today / Overdue / Upcoming / All) as tonal cards with live
@@ -61,6 +64,7 @@ import de.jeanlucmakiola.floret.ui.common.positionOf
 fun ListsScreen(
     onOpenFilter: (TaskFilter) -> Unit,
     onNewTask: () -> Unit,
+    onOpenSettings: () -> Unit,
     modifier: Modifier = Modifier,
     viewModel: ListsViewModel = hiltViewModel(),
 ) {
@@ -72,6 +76,17 @@ fun ListsScreen(
         topBar = {
             MediumTopAppBar(
                 title = { Text(stringResource(R.string.app_name)) },
+                actions = {
+                    ShapedActionButton(
+                        shape = ActionShapes.Settings,
+                        icon = Icons.Rounded.Settings,
+                        contentDescription = stringResource(R.string.settings_title),
+                        onClick = onOpenSettings,
+                        modifier = Modifier.padding(end = 8.dp),
+                        size = 48.dp,
+                        iconSize = 26.dp,
+                    )
+                },
                 scrollBehavior = scrollBehavior,
             )
         },

app/src/main/java/de/jeanlucmakiola/agendula/ui/lists/ListsViewModel.kt

@@ -1,15 +1,15 @@
-package de.jeanlucmakiola.floret.ui.lists
+package de.jeanlucmakiola.agendula.ui.lists
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.domain.DayWindow
-import de.jeanlucmakiola.floret.domain.SmartList
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskFilter
-import de.jeanlucmakiola.floret.domain.TaskFiltering
-import de.jeanlucmakiola.floret.domain.TaskList
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.floret.time.DayWindow
+import de.jeanlucmakiola.agendula.domain.SmartList
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.domain.TaskFiltering
+import de.jeanlucmakiola.agendula.domain.TaskList
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.catch
@@ -49,16 +49,20 @@ class ListsViewModel @Inject constructor(
 
     private fun buildContent(lists: List<TaskList>, openTasks: List<Task>): ListsUiState.Content {
         val (todayStart, todayEnd) = DayWindow.today(Clock.System.now(), ZoneId.systemDefault())
+        // Count only top-level tasks: a subtask is represented by its parent (and
+        // its progress chip), and an open subtask under a *completed* parent must
+        // not read as an open item here. Mirrors the task list collapsing subtasks.
+        val topLevel = openTasks.filter { !it.isSubtask }
         fun count(smart: SmartList) =
-            openTasks.count { TaskFiltering.matches(it, TaskFilter.Smart(smart), todayStart, todayEnd) }
+            topLevel.count { TaskFiltering.matches(it, TaskFilter.Smart(smart), todayStart, todayEnd) }
 
         val smartCounts = listOf(
             SmartCount(SmartList.TODAY, count(SmartList.TODAY)),
             SmartCount(SmartList.OVERDUE, count(SmartList.OVERDUE)),
             SmartCount(SmartList.UPCOMING, count(SmartList.UPCOMING)),
-            SmartCount(SmartList.ALL, openTasks.size),
+            SmartCount(SmartList.ALL, topLevel.size),
         )
-        val openByList = openTasks.groupingBy { it.listId }.eachCount()
+        val openByList = topLevel.groupingBy { it.listId }.eachCount()
         val groups = lists
             .groupBy { it.accountName }
             .map { (account, accountLists) ->

app/src/main/java/de/jeanlucmakiola/agendula/ui/navigation/AgendulaNavHost.kt

@@ -0,0 +1,125 @@
+package de.jeanlucmakiola.agendula.ui.navigation
+
+import androidx.compose.animation.EnterTransition
+import androidx.compose.animation.ExitTransition
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.scaleOut
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.ui.Modifier
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.ui.detail.TaskDetailScreen
+import de.jeanlucmakiola.agendula.ui.detail.TaskDetailViewModel
+import de.jeanlucmakiola.agendula.ui.edit.TaskEditScreen
+import de.jeanlucmakiola.agendula.ui.edit.TaskEditViewModel
+import de.jeanlucmakiola.agendula.ui.lists.ListsScreen
+import de.jeanlucmakiola.agendula.ui.settings.SettingsScreen
+import de.jeanlucmakiola.agendula.ui.tasklist.TaskListScreen
+import de.jeanlucmakiola.agendula.ui.tasklist.TaskListViewModel
+
+/**
+ * The single in-app back stack: lists → task list → detail / edit.
+ *
+ * Each destination resolves its own Hilt [androidx.lifecycle.ViewModel] and
+ * feeds it the route arguments through that VM's `bind(...)` method (the VMs
+ * were built render-only in M1 and take their input this way rather than from a
+ * `SavedStateHandle`). Screens receive plain navigation lambdas so they stay
+ * unaware of the nav library.
+ */
+@Composable
+fun AgendulaNavHost(modifier: Modifier = Modifier) {
+    val nav = rememberNavController()
+
+    NavHost(
+        navController = nav,
+        startDestination = Dest.LISTS,
+        modifier = modifier,
+        // Only the screen on top moves; the background is always held static.
+        // Forward is a plain fade-in over the held screen — calm, not a slide.
+        // Back is the predictive-back peek: navigation-compose composes the
+        // screen being revealed underneath and seeks popExit with the gesture, so
+        // the leaving screen scales down to reveal the (unmoved) previous screen.
+        enterTransition = { fadeIn() },
+        exitTransition = { ExitTransition.None },
+        popEnterTransition = { EnterTransition.None },
+        popExitTransition = { scaleOut(targetScale = 0.9f) + fadeOut() },
+    ) {
+        composable(Dest.LISTS) {
+            ListsScreen(
+                onOpenFilter = { filter -> nav.navigate(Dest.TaskList.build(filter)) },
+                onNewTask = { nav.navigate(Dest.TaskEdit.buildNew()) },
+                onOpenSettings = { nav.navigate(Dest.SETTINGS) },
+            )
+        }
+
+        composable(Dest.SETTINGS) {
+            SettingsScreen(onBack = { nav.popBackStack() })
+        }
+
+        composable(Dest.TaskList.route, arguments = Dest.TaskList.arguments) { entry ->
+            val args = entry.arguments
+            val filter = Dest.TaskList.filterOf(
+                smart = args?.getString(Dest.TaskList.ARG_SMART),
+                listId = args?.getLong(Dest.TaskList.ARG_LIST_ID) ?: Dest.NO_ID,
+            )
+            val vm: TaskListViewModel = hiltViewModel()
+            LaunchedEffect(filter) { vm.bind(filter) }
+
+            TaskListScreen(
+                filter = filter,
+                viewModel = vm,
+                onOpenTask = { taskId -> nav.navigate(Dest.TaskDetail.build(taskId)) },
+                onNewTask = {
+                    val presetListId = (filter as? TaskFilter.OfList)?.listId
+                    nav.navigate(Dest.TaskEdit.buildNew(presetListId = presetListId))
+                },
+                onBack = { nav.popBackStack() },
+            )
+        }
+
+        composable(Dest.TaskDetail.route, arguments = Dest.TaskDetail.arguments) { entry ->
+            val taskId = entry.arguments?.getLong(Dest.TaskDetail.ARG_TASK_ID) ?: Dest.NO_ID
+            val vm: TaskDetailViewModel = hiltViewModel()
+            LaunchedEffect(taskId) { vm.bind(taskId) }
+
+            TaskDetailScreen(
+                viewModel = vm,
+                onEdit = { nav.navigate(Dest.TaskEdit.buildEdit(taskId)) },
+                onDeleted = { nav.popBackStack() },
+                onBack = { nav.popBackStack() },
+                // A subtask opens its own detail — another entry on the stack, with
+                // its own VM bound to that id (it may have children of its own).
+                onOpenTask = { subtaskId -> nav.navigate(Dest.TaskDetail.build(subtaskId)) },
+            )
+        }
+
+        composable(Dest.TaskEdit.route, arguments = Dest.TaskEdit.arguments) { entry ->
+            val args = entry.arguments
+            val taskId = args?.getLong(Dest.TaskEdit.ARG_TASK_ID) ?: Dest.NO_ID
+            val presetListId = args?.getLong(Dest.TaskEdit.ARG_PRESET_LIST_ID) ?: Dest.NO_ID
+            val parentId = args?.getLong(Dest.TaskEdit.ARG_PARENT_ID) ?: Dest.NO_ID
+            val vm: TaskEditViewModel = hiltViewModel()
+            LaunchedEffect(taskId, presetListId, parentId) {
+                if (taskId != Dest.NO_ID) {
+                    vm.bindEdit(taskId)
+                } else {
+                    vm.bindNew(
+                        presetListId = presetListId.takeIf { it != Dest.NO_ID },
+                        parentId = parentId.takeIf { it != Dest.NO_ID },
+                    )
+                }
+            }
+
+            TaskEditScreen(
+                viewModel = vm,
+                onSaved = { nav.popBackStack() },
+                onBack = { nav.popBackStack() },
+            )
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/navigation/Destinations.kt

@@ -0,0 +1,91 @@
+package de.jeanlucmakiola.agendula.ui.navigation
+
+import androidx.navigation.NavType
+import androidx.navigation.navArgument
+import de.jeanlucmakiola.agendula.domain.SmartList
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+
+/**
+ * String-based route table for the app's [androidx.navigation.NavHost].
+ *
+ * Routes are kept stringly-typed (rather than the type-safe `@Serializable`
+ * API) so we don't have to pull in the kotlinx-serialization Gradle plugin for
+ * four small destinations. Each destination exposes a `route` template (for
+ * `composable(...)`) and a builder that fills the arguments (for `navigate`).
+ *
+ * Argument convention: optional `Long`s default to [NO_ID] (`-1`) rather than
+ * being nullable, which sidesteps the lack of a nullable-Long [NavType].
+ */
+object Dest {
+
+    const val NO_ID = -1L
+
+    /** Home — smart lists + the user's lists. */
+    const val LISTS = "lists"
+
+    /** App preferences. */
+    const val SETTINGS = "settings"
+
+    /**
+     * One [TaskFilter]'s tasks. Carries *either* `listId` (a real list) *or*
+     * `smart` (a [SmartList] name); whichever is set decides the filter.
+     */
+    object TaskList {
+        const val ARG_LIST_ID = "listId"
+        const val ARG_SMART = "smart"
+        const val route = "taskList?$ARG_LIST_ID={$ARG_LIST_ID}&$ARG_SMART={$ARG_SMART}"
+
+        val arguments = listOf(
+            navArgument(ARG_LIST_ID) { type = NavType.LongType; defaultValue = NO_ID },
+            navArgument(ARG_SMART) { type = NavType.StringType; nullable = true; defaultValue = null },
+        )
+
+        fun build(filter: TaskFilter): String = when (filter) {
+            is TaskFilter.OfList -> "taskList?$ARG_LIST_ID=${filter.listId}"
+            is TaskFilter.Smart -> "taskList?$ARG_SMART=${filter.list.name}"
+        }
+
+        /** Reconstruct the filter from a destination's arguments. */
+        fun filterOf(smart: String?, listId: Long): TaskFilter =
+            if (smart != null) TaskFilter.Smart(SmartList.valueOf(smart))
+            else TaskFilter.OfList(listId)
+    }
+
+    /** A single task's detail. */
+    object TaskDetail {
+        const val ARG_TASK_ID = "taskId"
+        const val route = "taskDetail/{$ARG_TASK_ID}"
+        val arguments = listOf(navArgument(ARG_TASK_ID) { type = NavType.LongType })
+        fun build(taskId: Long): String = "taskDetail/$taskId"
+    }
+
+    /**
+     * The create / edit form. `taskId` set ([NO_ID] otherwise) ⇒ edit; for a new
+     * task, `presetListId` / `parentId` optionally seed the form.
+     */
+    object TaskEdit {
+        const val ARG_TASK_ID = "taskId"
+        const val ARG_PRESET_LIST_ID = "presetListId"
+        const val ARG_PARENT_ID = "parentId"
+        const val route =
+            "taskEdit?$ARG_TASK_ID={$ARG_TASK_ID}" +
+                "&$ARG_PRESET_LIST_ID={$ARG_PRESET_LIST_ID}" +
+                "&$ARG_PARENT_ID={$ARG_PARENT_ID}"
+
+        val arguments = listOf(
+            navArgument(ARG_TASK_ID) { type = NavType.LongType; defaultValue = NO_ID },
+            navArgument(ARG_PRESET_LIST_ID) { type = NavType.LongType; defaultValue = NO_ID },
+            navArgument(ARG_PARENT_ID) { type = NavType.LongType; defaultValue = NO_ID },
+        )
+
+        fun buildEdit(taskId: Long): String = "taskEdit?$ARG_TASK_ID=$taskId"
+
+        fun buildNew(presetListId: Long? = null, parentId: Long? = null): String {
+            val params = buildList {
+                if (presetListId != null) add("$ARG_PRESET_LIST_ID=$presetListId")
+                if (parentId != null) add("$ARG_PARENT_ID=$parentId")
+            }
+            return if (params.isEmpty()) "taskEdit" else "taskEdit?${params.joinToString("&")}"
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/permission/OnboardingHero.kt

@@ -0,0 +1,36 @@
+package de.jeanlucmakiola.agendula.ui.permission
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.unit.dp
+
+/**
+ * Agendula's onboarding hero: an icon in the brand squircle. Each app keeps its
+ * own hero; the surrounding shell comes from floret-kit's OnboardingScaffold.
+ */
+@Composable
+internal fun SquircleHero(icon: ImageVector) {
+    Box(
+        modifier = Modifier
+            .size(128.dp)
+            .clip(RoundedCornerShape(34.dp))
+            .background(MaterialTheme.colorScheme.primaryContainer),
+        contentAlignment = Alignment.Center,
+    ) {
+        Icon(
+            imageVector = icon,
+            contentDescription = null,
+            tint = MaterialTheme.colorScheme.onPrimaryContainer,
+            modifier = Modifier.size(56.dp),
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/permission/PermissionViewModel.kt

@@ -1,10 +1,10 @@
-package de.jeanlucmakiola.floret.ui.permission
+package de.jeanlucmakiola.agendula.ui.permission
 
 import androidx.lifecycle.ViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.floret.data.tasks.ProviderResolver
-import de.jeanlucmakiola.floret.data.tasks.ProviderStatus
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
+import de.jeanlucmakiola.agendula.data.tasks.ProviderResolver
+import de.jeanlucmakiola.agendula.data.tasks.ProviderStatus
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow

app/src/main/java/de/jeanlucmakiola/agendula/ui/permission/ReminderOnboardingScreen.kt

@@ -0,0 +1,114 @@
+package de.jeanlucmakiola.agendula.ui.permission
+
+import android.Manifest
+import android.os.Build
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.rounded.Edit
+import androidx.compose.material.icons.rounded.Notifications
+import androidx.compose.material.icons.rounded.Schedule
+import androidx.compose.material3.Button
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.floret.components.BenefitRow
+import de.jeanlucmakiola.floret.components.OnboardingScaffold
+import de.jeanlucmakiola.floret.components.OnboardingSpace
+
+/**
+ * One-time onboarding step after the tasks-provider grant: explains that Agendula
+ * delivers due reminders itself (tasks providers don't broadcast reminders) and
+ * requests `POST_NOTIFICATIONS` (a system dialog on API 33+ only).
+ *
+ * Reminders default ON: [onFinished] gets true from the primary action even if
+ * the system dialog is declined — the OS permission is the real gate, and the
+ * Settings toggle re-requests it. "Not now" turns the in-app toggle off.
+ */
+@Composable
+fun ReminderOnboardingScreen(
+    onFinished: (remindersEnabled: Boolean) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    val launcher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestPermission(),
+    ) { onFinished(true) }
+
+    OnboardingScaffold(
+        modifier = modifier,
+        hero = { SquircleHero(Icons.Rounded.Notifications) },
+        actions = {
+            Button(
+                onClick = {
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                        launcher.launch(Manifest.permission.POST_NOTIFICATIONS)
+                    } else {
+                        onFinished(true)
+                    }
+                },
+                modifier = Modifier.fillMaxWidth().height(56.dp),
+            ) {
+                Text(
+                    text = stringResource(R.string.reminder_onboarding_enable_button),
+                    style = MaterialTheme.typography.titleMedium,
+                )
+            }
+            TextButton(
+                onClick = { onFinished(false) },
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                Text(stringResource(R.string.reminder_onboarding_skip_button))
+            }
+        },
+    ) {
+        Text(
+            text = stringResource(R.string.app_name).uppercase(),
+            style = MaterialTheme.typography.labelLarge,
+            color = MaterialTheme.colorScheme.primary,
+            letterSpacing = 2.sp,
+        )
+        Spacer(Modifier.height(OnboardingSpace.xs))
+        Text(
+            text = stringResource(R.string.reminder_onboarding_title),
+            style = MaterialTheme.typography.headlineMedium,
+            textAlign = TextAlign.Center,
+        )
+        Spacer(Modifier.height(12.dp))
+        Text(
+            text = stringResource(R.string.reminder_onboarding_body),
+            style = MaterialTheme.typography.bodyLarge,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+        )
+
+        Spacer(Modifier.height(OnboardingSpace.xl))
+
+        BenefitRow(
+            icon = Icons.Rounded.Notifications,
+            title = stringResource(R.string.reminder_benefit_delivery_title),
+            body = stringResource(R.string.reminder_benefit_delivery_body),
+        )
+        Spacer(Modifier.height(OnboardingSpace.sm))
+        BenefitRow(
+            icon = Icons.Rounded.Schedule,
+            title = stringResource(R.string.reminder_benefit_timing_title),
+            body = stringResource(R.string.reminder_benefit_timing_body),
+        )
+        Spacer(Modifier.height(OnboardingSpace.sm))
+        BenefitRow(
+            icon = Icons.Rounded.Edit,
+            title = stringResource(R.string.reminder_benefit_reversible_title),
+            body = stringResource(R.string.reminder_benefit_reversible_body),
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/permission/ReminderOnboardingViewModel.kt

@@ -0,0 +1,39 @@
+package de.jeanlucmakiola.agendula.ui.permission
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * Gates the one-time reminder onboarding step shown after the tasks-provider
+ * grant. [onboardingDone] is null until DataStore's first emission so the step
+ * neither flashes for users who completed it nor gets skipped.
+ */
+@HiltViewModel
+class ReminderOnboardingViewModel @Inject constructor(
+    private val prefs: SettingsPrefs,
+) : ViewModel() {
+
+    val onboardingDone: StateFlow<Boolean?> = prefs.reminderOnboardingDone
+        .map { done -> done as Boolean? }
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            initialValue = null,
+        )
+
+    /** Close the step, recording whether due reminders stay on. */
+    fun finish(remindersEnabled: Boolean) {
+        viewModelScope.launch {
+            prefs.setRemindersEnabled(remindersEnabled)
+            prefs.setReminderOnboardingDone()
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/settings/SettingsScreen.kt

@@ -0,0 +1,647 @@
+package de.jeanlucmakiola.agendula.ui.settings
+
+import android.Manifest
+import android.app.AlarmManager
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
+import android.provider.Settings
+import androidx.activity.compose.BackHandler
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.slideInHorizontally
+import androidx.compose.animation.slideOutHorizontally
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.requiredSize
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.Image
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.rounded.Notes
+import androidx.compose.material.icons.filled.BugReport
+import androidx.compose.material.icons.filled.Code
+import androidx.compose.material.icons.filled.ExpandLess
+import androidx.compose.material.icons.filled.ExpandMore
+import androidx.compose.material.icons.filled.Favorite
+import androidx.compose.material.icons.filled.Gavel
+import androidx.compose.material.icons.filled.Language
+import androidx.compose.material.icons.filled.Notifications
+import androidx.compose.material.icons.filled.Palette
+import androidx.compose.material.icons.filled.Tune
+import androidx.compose.material.icons.rounded.AccountTree
+import androidx.compose.material.icons.rounded.Circle
+import androidx.compose.material.icons.rounded.Flag
+import androidx.compose.material.icons.rounded.Percent
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.colorResource
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.core.content.ContextCompat
+import androidx.core.net.toUri
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import androidx.lifecycle.compose.LocalLifecycleOwner
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.agendula.data.prefs.ThemeMode
+import de.jeanlucmakiola.agendula.domain.TaskFormField
+import de.jeanlucmakiola.floret.components.AboutCard
+import de.jeanlucmakiola.floret.components.AboutLink
+import de.jeanlucmakiola.floret.components.CollapsingScaffold
+import de.jeanlucmakiola.floret.components.LanguagePickerRow
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.components.OptionPicker
+import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.agendula.ui.common.ReminderLeadPicker
+import de.jeanlucmakiola.floret.components.pastelize
+import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.floret.identity.collapseExit
+import de.jeanlucmakiola.floret.identity.expandEnter
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
+import de.jeanlucmakiola.agendula.ui.common.reminderLeadTimeLabel
+
+/** The settings sub-screens reached from the hub's category rows. */
+private enum class SettingsSection { Appearance, TaskForm, Reminders }
+
+/**
+ * Token-based accent for a leading icon chip (container / on-container pair),
+ * so each accent stays correctly paired across theme, dark mode and dynamic
+ * colour.
+ */
+private enum class ChipAccent { Neutral, Primary, Tertiary }
+
+/**
+ * Settings, structured (after Calendula) as a category hub with sliding
+ * sub-screens. The hub and the sub-screens share [CollapsingScaffold] and the
+ * grouped-row card system; option lists use the full-screen [OptionPicker].
+ * A full-screen destination; [onBack] pops it.
+ */
+@Composable
+fun SettingsScreen(
+    onBack: () -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: SettingsViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    var section by rememberSaveable { mutableStateOf<SettingsSection?>(null) }
+
+    // Inside a sub-screen, system back (button or gesture) returns to the hub
+    // rather than popping the whole Settings destination to the lists overview.
+    BackHandler(enabled = section != null) { section = null }
+
+    Box(
+        modifier = modifier
+            .fillMaxSize()
+            .background(MaterialTheme.colorScheme.surface),
+    ) {
+        SettingsHub(onBack = onBack, onOpenSection = { section = it })
+
+        SlideInSection(visible = section == SettingsSection.Appearance) {
+            AppearanceScreen(state = state, viewModel = viewModel, onBack = { section = null })
+        }
+        SlideInSection(visible = section == SettingsSection.TaskForm) {
+            TaskFormScreen(state = state, viewModel = viewModel, onBack = { section = null })
+        }
+        SlideInSection(visible = section == SettingsSection.Reminders) {
+            RemindersScreen(state = state, viewModel = viewModel, onBack = { section = null })
+        }
+    }
+}
+
+@Composable
+private fun SlideInSection(visible: Boolean, content: @Composable () -> Unit) {
+    AnimatedVisibility(
+        visible = visible,
+        enter = slideInHorizontally { it } + fadeIn(),
+        exit = slideOutHorizontally { it } + fadeOut(),
+    ) { content() }
+}
+
+// ---------------------------------------------------------------------------
+// Hub
+// ---------------------------------------------------------------------------
+
+@Composable
+private fun SettingsHub(
+    onBack: () -> Unit,
+    onOpenSection: (SettingsSection) -> Unit,
+) {
+    CollapsingScaffold(title = stringResource(R.string.settings_title), onBack = onBack) {
+        Box(Modifier.padding(horizontal = 16.dp)) {
+            AboutCard(
+                logo = { AppLogo() },
+                appName = stringResource(R.string.app_name),
+                author = stringResource(R.string.settings_about_author),
+                primaryLinks = listOf(
+                    AboutLink(
+                        icon = Icons.Default.Code,
+                        label = stringResource(R.string.settings_about_source),
+                        url = stringResource(R.string.about_source_url),
+                    ),
+                    AboutLink(
+                        icon = Icons.Default.Gavel,
+                        label = stringResource(R.string.settings_license),
+                        url = stringResource(R.string.about_license_url),
+                    ),
+                ),
+                highlightLink = AboutLink(
+                    icon = Icons.Default.Favorite,
+                    label = stringResource(R.string.settings_about_support),
+                    url = stringResource(R.string.about_support_url),
+                ),
+            )
+        }
+        Spacer(Modifier.height(16.dp))
+
+        GroupedRow(
+            title = stringResource(R.string.settings_section_appearance),
+            summary = stringResource(R.string.settings_appearance_subtitle),
+            position = Position.Top,
+            leading = { CategoryIcon(Icons.Default.Palette, ChipAccent.Neutral) },
+            onClick = { onOpenSection(SettingsSection.Appearance) },
+        )
+        GroupedRow(
+            title = stringResource(R.string.settings_section_task_form),
+            summary = stringResource(R.string.settings_task_form_subtitle),
+            position = Position.Middle,
+            leading = { CategoryIcon(Icons.Default.Tune, ChipAccent.Tertiary) },
+            onClick = { onOpenSection(SettingsSection.TaskForm) },
+        )
+        GroupedRow(
+            title = stringResource(R.string.settings_section_reminders),
+            summary = stringResource(R.string.settings_reminders_subtitle),
+            position = Position.Middle,
+            leading = { CategoryIcon(Icons.Default.Notifications, ChipAccent.Primary) },
+            onClick = { onOpenSection(SettingsSection.Reminders) },
+        )
+        LanguagePickerRow(
+            position = Position.Middle,
+            title = stringResource(R.string.settings_language),
+            autoLabel = stringResource(R.string.settings_language_auto),
+            localesConfig = R.xml.locales_config,
+            leading = { CategoryIcon(Icons.Default.Language, ChipAccent.Neutral) },
+        )
+        ReportProblemRow(position = Position.Bottom)
+
+        AppVersionText()
+    }
+}
+
+/** Opens the project's issue tracker; no data leaves the device until submitted. */
+@Composable
+private fun ReportProblemRow(position: Position) {
+    val context = LocalContext.current
+    val issueUrl = stringResource(R.string.report_issue_url)
+    GroupedRow(
+        title = stringResource(R.string.settings_report_problem),
+        summary = stringResource(R.string.settings_report_problem_hint),
+        position = position,
+        leading = { CategoryIcon(Icons.Default.BugReport, ChipAccent.Neutral) },
+        onClick = { openUrl(context, issueUrl) },
+    )
+}
+
+// ---------------------------------------------------------------------------
+// Sub-screens
+// ---------------------------------------------------------------------------
+
+@Composable
+private fun AppearanceScreen(
+    state: SettingsUiState,
+    viewModel: SettingsViewModel,
+    onBack: () -> Unit,
+) {
+    val dynamicColorAvailable = Build.VERSION.SDK_INT >= Build.VERSION_CODES.S
+    var showTheme by remember { mutableStateOf(false) }
+
+    CollapsingScaffold(title = stringResource(R.string.settings_section_appearance), onBack = onBack) {
+        GroupedRow(
+            title = stringResource(R.string.settings_theme),
+            summary = stringResource(themeLabel(state.settings.themeMode)),
+            position = Position.Top,
+            onClick = { showTheme = true },
+        )
+        GroupedRow(
+            title = stringResource(R.string.settings_dynamic_color),
+            summary = if (dynamicColorAvailable) {
+                stringResource(R.string.settings_dynamic_color_hint)
+            } else {
+                stringResource(R.string.settings_dynamic_color_unavailable)
+            },
+            position = Position.Bottom,
+            trailing = {
+                Switch(
+                    checked = state.settings.dynamicColor && dynamicColorAvailable,
+                    onCheckedChange = viewModel::setDynamicColor,
+                    enabled = dynamicColorAvailable,
+                )
+            },
+            onClick = if (dynamicColorAvailable) {
+                { viewModel.setDynamicColor(!state.settings.dynamicColor) }
+            } else {
+                null
+            },
+        )
+    }
+
+    if (showTheme) {
+        OptionPicker(
+            title = stringResource(R.string.settings_theme),
+            options = ThemeMode.entries,
+            selected = state.settings.themeMode,
+            label = { stringResource(themeLabel(it)) },
+            onSelect = viewModel::setThemeMode,
+            onDismiss = { showTheme = false },
+        )
+    }
+}
+
+@Composable
+private fun TaskFormScreen(
+    state: SettingsUiState,
+    viewModel: SettingsViewModel,
+    onBack: () -> Unit,
+) {
+    var showDefaultList by remember { mutableStateOf(false) }
+
+    CollapsingScaffold(title = stringResource(R.string.settings_section_task_form), onBack = onBack) {
+        Text(
+            text = stringResource(R.string.settings_form_fields_hint),
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.padding(horizontal = 16.dp, vertical = 4.dp),
+        )
+        Spacer(Modifier.height(8.dp))
+        val fields = TaskFormField.entries
+        fields.forEachIndexed { index, field ->
+            val checked = field in state.settings.defaultEditFields
+            GroupedRow(
+                title = stringResource(formFieldLabel(field)),
+                position = positionOf(index, fields.size),
+                leading = {
+                    Icon(
+                        imageVector = formFieldIcon(field),
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                },
+                trailing = {
+                    Switch(checked = checked, onCheckedChange = { viewModel.setFormFieldDefault(field, it) })
+                },
+                onClick = { viewModel.setFormFieldDefault(field, !checked) },
+            )
+        }
+
+        Spacer(Modifier.height(24.dp))
+        GroupedRow(
+            title = stringResource(R.string.settings_default_list),
+            summary = defaultListLabel(state),
+            position = Position.Top,
+            onClick = { showDefaultList = true },
+        )
+        GroupedRow(
+            title = stringResource(R.string.settings_add_subtask_row),
+            summary = stringResource(R.string.settings_add_subtask_row_hint),
+            position = Position.Middle,
+            trailing = {
+                Switch(
+                    checked = state.settings.showAddSubtaskRow,
+                    onCheckedChange = viewModel::setShowAddSubtaskRow,
+                )
+            },
+            onClick = { viewModel.setShowAddSubtaskRow(!state.settings.showAddSubtaskRow) },
+        )
+        GroupedRow(
+            title = stringResource(R.string.settings_bottom_add_bar),
+            summary = stringResource(R.string.settings_bottom_add_bar_hint),
+            position = Position.Bottom,
+            trailing = {
+                Switch(
+                    checked = state.settings.bottomAddBar,
+                    onCheckedChange = viewModel::setBottomAddBar,
+                )
+            },
+            onClick = { viewModel.setBottomAddBar(!state.settings.bottomAddBar) },
+        )
+    }
+
+    if (showDefaultList) {
+        val dark = isSystemInDarkTheme()
+        // null = first available list; the rest are real list ids.
+        val options = remember(state.lists) { listOf<Long?>(null) + state.lists.map { it.id } }
+        OptionPicker(
+            title = stringResource(R.string.settings_default_list),
+            options = options,
+            selected = state.settings.defaultListId,
+            label = { id -> state.lists.firstOrNull { it.id == id }?.name ?: stringResource(R.string.settings_default_list_first) },
+            leading = { id ->
+                state.lists.firstOrNull { it.id == id }?.let { list ->
+                    Icon(Icons.Rounded.Circle, contentDescription = null, tint = pastelize(list.color, dark))
+                }
+            },
+            onSelect = { viewModel.setDefaultList(it) },
+            onDismiss = { showDefaultList = false },
+        )
+    }
+}
+
+@Composable
+private fun RemindersScreen(
+    state: SettingsUiState,
+    viewModel: SettingsViewModel,
+    onBack: () -> Unit,
+) {
+    val context = LocalContext.current
+    val notifLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestPermission(),
+    ) { /* pref already set; a denial just leaves the OS gate shut */ }
+    val toggleReminders: (Boolean) -> Unit = { enabled ->
+        viewModel.setRemindersEnabled(enabled)
+        if (enabled &&
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU &&
+            ContextCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS) !=
+            PackageManager.PERMISSION_GRANTED
+        ) {
+            notifLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+        }
+    }
+    val canExact = rememberExactAlarmAllowed(context)
+    val exactAlarmRow = showExactAlarmRow()
+    val dark = isSystemInDarkTheme()
+    var showOffset by remember { mutableStateOf(false) }
+    var perListExpanded by remember { mutableStateOf(false) }
+    var listPickerId by remember { mutableStateOf<Long?>(null) }
+    val lists = state.lists.filter { it.id > 0L }
+
+    CollapsingScaffold(title = stringResource(R.string.settings_section_reminders), onBack = onBack) {
+        GroupedRow(
+            title = stringResource(R.string.settings_reminders),
+            summary = stringResource(R.string.settings_reminders_hint),
+            position = Position.Top,
+            trailing = { Switch(checked = state.settings.remindersEnabled, onCheckedChange = toggleReminders) },
+            onClick = { toggleReminders(!state.settings.remindersEnabled) },
+        )
+        GroupedRow(
+            title = stringResource(R.string.settings_default_reminder),
+            summary = reminderLeadTimeLabel(state.settings.reminderLeadMinutes),
+            position = if (exactAlarmRow) Position.Middle else Position.Bottom,
+            onClick = { showOffset = true },
+        )
+        if (exactAlarmRow) {
+            GroupedRow(
+                title = stringResource(R.string.settings_exact_alarms),
+                summary = stringResource(
+                    if (canExact) R.string.settings_exact_alarms_allowed
+                    else R.string.settings_exact_alarms_blocked,
+                ),
+                position = Position.Bottom,
+                onClick = if (canExact) null else ({ context.openExactAlarmSettings() }),
+            )
+        }
+
+        // Per-list overrides: the whole section folds behind one header. Each
+        // list may keep, drop, or replace the global default for its tasks.
+        if (lists.isNotEmpty()) {
+            Spacer(Modifier.height(24.dp))
+            // The header and the list rows form one connected run: the header
+            // opens its bottom (Top) when expanded, and the last list rounds it off.
+            GroupedRow(
+                title = stringResource(R.string.settings_list_reminders_title),
+                summary = stringResource(R.string.settings_list_reminders_hint),
+                position = if (perListExpanded) Position.Top else Position.Alone,
+                trailing = {
+                    Icon(
+                        imageVector = if (perListExpanded) Icons.Default.ExpandLess else Icons.Default.ExpandMore,
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                },
+                onClick = { perListExpanded = !perListExpanded },
+            )
+            AnimatedVisibility(
+                visible = perListExpanded,
+                enter = expandEnter(),
+                exit = collapseExit(),
+            ) {
+                Column {
+                    lists.forEachIndexed { index, list ->
+                        GroupedRow(
+                            title = list.name,
+                            summary = listOverrideSummary(
+                                listOverrideChoice(state, list.id),
+                                state.settings.reminderLeadMinutes,
+                            ),
+                            // Every list is mid-run under the header; the last rounds off.
+                            position = if (index == lists.lastIndex) Position.Bottom else Position.Middle,
+                            leading = {
+                                Icon(Icons.Rounded.Circle, contentDescription = null, tint = pastelize(list.color, dark))
+                            },
+                            onClick = { listPickerId = list.id },
+                        )
+                    }
+                }
+            }
+        }
+    }
+
+    if (showOffset) {
+        ReminderLeadPicker(
+            title = stringResource(R.string.settings_default_reminder),
+            selected = ReminderOverride.Minutes(state.settings.reminderLeadMinutes),
+            allowInherit = false,
+            allowNone = false,
+            onSelect = { if (it is ReminderOverride.Minutes) viewModel.setReminderLeadMinutes(it.minutes) },
+            onDismiss = { showOffset = false },
+        )
+    }
+    listPickerId?.let { id ->
+        ReminderLeadPicker(
+            title = state.lists.firstOrNull { it.id == id }?.name
+                ?: stringResource(R.string.settings_default_reminder),
+            selected = listOverrideChoice(state, id),
+            allowInherit = true,
+            allowNone = true,
+            onSelect = { viewModel.setListReminderOverride(id, it) },
+            onDismiss = { listPickerId = null },
+        )
+    }
+}
+
+/** The stored override for [listId], as a picker choice (absent → inherit). */
+private fun listOverrideChoice(state: SettingsUiState, listId: Long): ReminderOverride {
+    val map = state.settings.perListReminderOverride
+    return when {
+        !map.containsKey(listId) -> ReminderOverride.Inherit
+        map[listId] == null -> ReminderOverride.None
+        else -> ReminderOverride.Minutes(map.getValue(listId)!!)
+    }
+}
+
+/** Row summary for a list: its override, or the inherited global default. */
+@Composable
+private fun listOverrideSummary(choice: ReminderOverride, globalDefault: Int): String = when (choice) {
+    ReminderOverride.Inherit ->
+        stringResource(R.string.settings_list_reminder_inherits, reminderLeadTimeLabel(globalDefault))
+    ReminderOverride.None -> stringResource(R.string.reminder_none)
+    is ReminderOverride.Minutes -> reminderLeadTimeLabel(choice.minutes)
+}
+
+// ---------------------------------------------------------------------------
+// About + shared building blocks
+// ---------------------------------------------------------------------------
+
+@Composable
+private fun AppLogo() {
+    Box(
+        modifier = Modifier
+            .size(72.dp)
+            .clip(RoundedCornerShape(20.dp))
+            .background(colorResource(R.color.ic_launcher_background)),
+        contentAlignment = Alignment.Center,
+    ) {
+        Image(
+            painter = painterResource(R.drawable.ic_launcher_foreground),
+            contentDescription = stringResource(R.string.settings_about_logo_desc),
+            modifier = Modifier.requiredSize(108.dp),
+        )
+    }
+}
+
+@Composable
+private fun AppVersionText() {
+    val context = LocalContext.current
+    val versionName = remember {
+        runCatching { context.packageManager.getPackageInfo(context.packageName, 0).versionName }
+            .getOrNull() ?: "—"
+    }
+    Text(
+        text = stringResource(R.string.settings_about_version, versionName),
+        style = MaterialTheme.typography.bodySmall,
+        color = MaterialTheme.colorScheme.onSurfaceVariant,
+        textAlign = TextAlign.Center,
+        modifier = Modifier.fillMaxWidth().padding(vertical = 16.dp),
+    )
+}
+
+/** Leading circular icon chip; colours come from the M3 scheme via a token pair. */
+@Composable
+private fun CategoryIcon(icon: ImageVector, accent: ChipAccent) {
+    val scheme = MaterialTheme.colorScheme
+    val (background, iconColor) = when (accent) {
+        ChipAccent.Neutral -> scheme.surfaceContainerHighest to scheme.onSurfaceVariant
+        ChipAccent.Primary -> scheme.primaryContainer to scheme.onPrimaryContainer
+        ChipAccent.Tertiary -> scheme.tertiaryContainer to scheme.onTertiaryContainer
+    }
+    Box(
+        modifier = Modifier.size(40.dp).clip(CircleShape).background(background),
+        contentAlignment = Alignment.Center,
+    ) {
+        Icon(icon, contentDescription = null, tint = iconColor, modifier = Modifier.size(22.dp))
+    }
+}
+
+@Composable
+private fun defaultListLabel(state: SettingsUiState): String =
+    state.lists.firstOrNull { it.id == state.settings.defaultListId }?.name
+        ?: stringResource(R.string.settings_default_list_first)
+
+private fun openUrl(context: Context, url: String) {
+    runCatching { context.startActivity(Intent(Intent.ACTION_VIEW, url.toUri())) }
+}
+
+private fun themeLabel(mode: ThemeMode): Int = when (mode) {
+    ThemeMode.SYSTEM -> R.string.settings_theme_system
+    ThemeMode.LIGHT -> R.string.settings_theme_light
+    ThemeMode.DARK -> R.string.settings_theme_dark
+}
+
+private fun formFieldLabel(field: TaskFormField): Int = when (field) {
+    TaskFormField.Description -> R.string.field_description
+    TaskFormField.Priority -> R.string.edit_priority_label
+    TaskFormField.Progress -> R.string.edit_progress_label
+    TaskFormField.Parent -> R.string.edit_parent_label
+    TaskFormField.Reminder -> R.string.edit_reminder_label
+}
+
+private fun formFieldIcon(field: TaskFormField): ImageVector = when (field) {
+    TaskFormField.Description -> Icons.AutoMirrored.Rounded.Notes
+    TaskFormField.Priority -> Icons.Rounded.Flag
+    TaskFormField.Progress -> Icons.Rounded.Percent
+    TaskFormField.Parent -> Icons.Rounded.AccountTree
+    TaskFormField.Reminder -> Icons.Default.Notifications
+}
+
+/**
+ * Exact-alarm control is only meaningful on API 31-32 (SCHEDULE_EXACT_ALARM,
+ * revocable). On 33+ the app holds USE_EXACT_ALARM (always granted), so the row
+ * would be a permanent no-op — hide it there.
+ */
+private fun showExactAlarmRow(): Boolean =
+    Build.VERSION.SDK_INT in Build.VERSION_CODES.S..Build.VERSION_CODES.S_V2
+
+@Composable
+private fun rememberExactAlarmAllowed(context: Context): Boolean {
+    var allowed by remember {
+        mutableStateOf(
+            Build.VERSION.SDK_INT < Build.VERSION_CODES.S ||
+                context.getSystemService(AlarmManager::class.java).canScheduleExactAlarms(),
+        )
+    }
+    val lifecycle = LocalLifecycleOwner.current.lifecycle
+    DisposableEffect(lifecycle) {
+        val obs = LifecycleEventObserver { _, event ->
+            if (event == Lifecycle.Event.ON_RESUME && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                allowed = context.getSystemService(AlarmManager::class.java).canScheduleExactAlarms()
+            }
+        }
+        lifecycle.addObserver(obs)
+        onDispose { lifecycle.removeObserver(obs) }
+    }
+    return allowed
+}
+
+private fun Context.openExactAlarmSettings() {
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+        runCatching {
+            startActivity(
+                Intent(Settings.ACTION_REQUEST_SCHEDULE_EXACT_ALARM).setData("package:$packageName".toUri()),
+            )
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/settings/SettingsViewModel.kt

@@ -1,13 +1,15 @@
-package de.jeanlucmakiola.floret.ui.settings
+package de.jeanlucmakiola.agendula.ui.settings
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.floret.data.prefs.Settings
-import de.jeanlucmakiola.floret.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.floret.data.prefs.ThemeMode
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.domain.TaskList
+import de.jeanlucmakiola.agendula.data.prefs.Settings
+import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.agendula.data.prefs.ThemeMode
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.agendula.domain.TaskFormField
+import de.jeanlucmakiola.agendula.domain.TaskList
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.catch
@@ -40,4 +42,17 @@ class SettingsViewModel @Inject constructor(
     fun setDynamicColor(enabled: Boolean) = viewModelScope.launch { prefs.setDynamicColor(enabled) }
     fun setDefaultList(id: Long?) = viewModelScope.launch { prefs.setDefaultListId(id) }
     fun setReminderLeadMinutes(minutes: Int) = viewModelScope.launch { prefs.setReminderLeadMinutes(minutes) }
+    fun setRemindersEnabled(enabled: Boolean) = viewModelScope.launch { prefs.setRemindersEnabled(enabled) }
+    fun setShowAddSubtaskRow(show: Boolean) = viewModelScope.launch { prefs.setShowAddSubtaskRow(show) }
+    fun setBottomAddBar(enabled: Boolean) = viewModelScope.launch { prefs.setBottomAddBar(enabled) }
+
+    /** Toggle whether [field] shows by default on a new task's edit form. */
+    fun setFormFieldDefault(field: TaskFormField, enabled: Boolean) = viewModelScope.launch {
+        val current = state.value.settings.defaultEditFields
+        prefs.setDefaultEditFields(if (enabled) current + field else current - field)
+    }
+
+    /** Set (or clear, via [ReminderOverride.Inherit]) a list's reminder override. */
+    fun setListReminderOverride(listId: Long, override: ReminderOverride) =
+        viewModelScope.launch { prefs.setListReminderOverride(listId, override) }
 }

app/src/main/java/de/jeanlucmakiola/agendula/ui/tasklist/TaskListViewModel.kt

@@ -0,0 +1,161 @@
+package de.jeanlucmakiola.agendula.ui.tasklist
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
+import de.jeanlucmakiola.agendula.domain.Task
+import de.jeanlucmakiola.agendula.domain.TaskFilter
+import de.jeanlucmakiola.agendula.domain.TaskForm
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onStart
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+sealed interface TaskListUiState {
+    data object Loading : TaskListUiState
+    data object Failure : TaskListUiState
+
+    /**
+     * [listName] is the real list's name when the filter is a
+     * [TaskFilter.OfList] (for the top-bar title), `null` for smart lists —
+     * the screen falls back to the smart label in that case.
+     */
+    data class Content(
+        val tasks: List<Task>,
+        val listName: String? = null,
+        /** Whether the inline "add a subtask" row shows on expanded groups (M5 setting). */
+        val showAddSubtaskRow: Boolean = true,
+        /** Whether a real list uses the bottom quick-add bar instead of the FAB. */
+        val bottomAddBar: Boolean = false,
+    ) : TaskListUiState
+}
+
+/**
+ * The tasks for one [TaskFilter]. Call [bind] with the filter the screen shows;
+ * the list re-emits live as the provider changes. Actions are fire-and-forget —
+ * the resulting provider change flows back through the list automatically.
+ */
+@OptIn(ExperimentalCoroutinesApi::class)
+@HiltViewModel
+class TaskListViewModel @Inject constructor(
+    private val repository: TasksRepository,
+    private val settingsPrefs: SettingsPrefs,
+) : ViewModel() {
+
+    private val filter = MutableStateFlow<TaskFilter?>(null)
+
+    /** Tasks swiped to delete but not yet committed — hidden until the undo lapses. */
+    private val pendingDeletes = MutableStateFlow<Set<Long>>(emptySet())
+
+    val state: StateFlow<TaskListUiState> =
+        filter.filterNotNull()
+            .flatMapLatest { f ->
+                val tasks = repository.tasks(f)
+                val content: kotlinx.coroutines.flow.Flow<TaskListUiState> = when (f) {
+                    is TaskFilter.OfList ->
+                        combine(tasks, repository.taskLists()) { list, lists ->
+                            TaskListUiState.Content(list, lists.firstOrNull { it.id == f.listId }?.name)
+                        }
+                    is TaskFilter.Smart ->
+                        tasks.map { TaskListUiState.Content(it) }
+                }
+                // Drop rows pending an undoable delete so the row vanishes on swipe
+                // while the actual provider delete waits for the snackbar to commit,
+                // and fold in the live UI settings (add-subtask row, bottom add bar).
+                val uiPrefs = settingsPrefs.settings.map { it.showAddSubtaskRow to it.bottomAddBar }
+                combine(content, pendingDeletes, uiPrefs) { st, pending, (showRow, bottomBar) ->
+                    if (st is TaskListUiState.Content) {
+                        st.copy(
+                            tasks = st.tasks.filter { it.taskId !in pending },
+                            showAddSubtaskRow = showRow,
+                            bottomAddBar = bottomBar,
+                        )
+                    } else {
+                        st
+                    }
+                }
+                    .onStart { emit(TaskListUiState.Loading) }
+                    .catch { emit(TaskListUiState.Failure) }
+            }
+            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), TaskListUiState.Loading)
+
+    /**
+     * Parents the screen has expanded whose children it can't pull from the list
+     * itself — i.e. smart lists, where the date filter drops a parent's subtasks.
+     * For each we observe the full child set live (below), so the group can expand.
+     */
+    private val lazyChildParents = MutableStateFlow<Set<Long>>(emptySet())
+
+    /**
+     * The on-demand child sets, keyed by parent id, kept live. Empty for real
+     * lists (the screen reports no parents there, since it already holds every
+     * child) so no redundant queries run.
+     */
+    val lazyChildren: StateFlow<Map<Long, List<Task>>> =
+        lazyChildParents
+            .flatMapLatest { ids ->
+                if (ids.isEmpty()) {
+                    flowOf(emptyMap())
+                } else {
+                    combine(ids.map { id -> repository.subtasks(id).map { id to it } }) { it.toMap() }
+                }
+            }
+            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyMap())
+
+    /** The screen reports which expanded parents need their children fetched. */
+    fun setLazyChildParents(ids: Set<Long>) { lazyChildParents.value = ids }
+
+    fun bind(taskFilter: TaskFilter) { filter.value = taskFilter }
+
+    fun toggleComplete(task: Task) = viewModelScope.launch {
+        runCatching { repository.setCompleted(task.taskId, !task.isCompleted) }
+    }
+
+    /** Swipe-delete: hide the row now; the screen's snackbar commits or restores it. */
+    fun markPendingDelete(task: Task) {
+        pendingDeletes.value = pendingDeletes.value + task.taskId
+    }
+
+    /** Undo — stop hiding the task; it returns to the list. */
+    fun undoDelete(taskId: Long) {
+        pendingDeletes.value = pendingDeletes.value - taskId
+    }
+
+    /**
+     * Commit the delete once the undo window passes. The id stays in the pending
+     * set: the task is gone from the provider so it can't reappear, and removing
+     * it could briefly un-hide the row before the provider change propagates.
+     */
+    fun commitDelete(taskId: Long) = viewModelScope.launch {
+        if (taskId !in pendingDeletes.value) return@launch
+        runCatching { repository.deleteTask(taskId) }
+    }
+
+    /** Inline "add task" — title only, into [listId]. */
+    fun quickAdd(title: String, listId: Long) = viewModelScope.launch {
+        if (title.isBlank() || listId <= 0L) return@launch
+        runCatching { repository.createTask(TaskForm(title = title, listId = listId)) }
+    }
+
+    /** Inline "add subtask" from an expanded list group — files it under [parent]. */
+    fun quickAddSubtask(parent: Task, title: String) = viewModelScope.launch {
+        if (title.isBlank() || parent.listId <= 0L) return@launch
+        runCatching {
+            repository.createTask(
+                TaskForm(title = title.trim(), listId = parent.listId, parentId = parent.taskId),
+            )
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/theme/Color.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.ui.theme
+package de.jeanlucmakiola.agendula.ui.theme
 
 import androidx.compose.material3.darkColorScheme
 import androidx.compose.material3.lightColorScheme
@@ -12,14 +12,14 @@ import androidx.compose.ui.graphics.Color
  *
  * Placeholder until branding lands; refine alongside the launcher icon.
  */
-val FloretSeed: Color = Color(0xFF7A5C6B)
+val AgendulaSeed: Color = Color(0xFF7A5C6B)
 
 /**
  * Fallback light scheme for devices without dynamic color (API < 31) or when
  * the user disables it. Dynamic color (API 31+) is the real path; these are a
- * hand-picked approximation of the tonal palette generated from [FloretSeed].
+ * hand-picked approximation of the tonal palette generated from [AgendulaSeed].
  */
-val FloretLightFallback = lightColorScheme(
+val AgendulaLightFallback = lightColorScheme(
     primary = Color(0xFF6A4E5B),
     onPrimary = Color(0xFFFFFFFF),
     primaryContainer = Color(0xFFF6D9E5),
@@ -32,7 +32,7 @@ val FloretLightFallback = lightColorScheme(
     onSurface = Color(0xFF1F1A1C),
 )
 
-val FloretDarkFallback = darkColorScheme(
+val AgendulaDarkFallback = darkColorScheme(
     primary = Color(0xFFE2BAC9),
     onPrimary = Color(0xFF402533),
     primaryContainer = Color(0xFF583B49),

app/src/main/java/de/jeanlucmakiola/agendula/ui/theme/Theme.kt

@@ -0,0 +1,28 @@
+package de.jeanlucmakiola.agendula.ui.theme
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.runtime.Composable
+import de.jeanlucmakiola.floret.identity.FloretExpressiveTheme
+
+/**
+ * Agendula's theme: the family's [FloretExpressiveTheme] machinery (dynamic
+ * colour on API 31+, system light/dark, the standard motion scheme) fed with
+ * Agendula's own identity — its seed-derived fallback schemes
+ * ([AgendulaLightFallback] / [AgendulaDarkFallback]) and [AgendulaTypography].
+ * The mechanics live in floret-kit; the look stays here.
+ */
+@Composable
+fun AgendulaTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit,
+) {
+    FloretExpressiveTheme(
+        lightScheme = AgendulaLightFallback,
+        darkScheme = AgendulaDarkFallback,
+        darkTheme = darkTheme,
+        dynamicColor = dynamicColor,
+        typography = AgendulaTypography,
+        content = content,
+    )
+}

app/src/main/java/de/jeanlucmakiola/agendula/ui/theme/Type.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.ui.theme
+package de.jeanlucmakiola.agendula.ui.theme
 
 import androidx.compose.material3.Typography
 
@@ -7,4 +7,4 @@ import androidx.compose.material3.Typography
  * land in a later UI-design iteration; the defaults keep the M0 foundation lean
  * (same posture as Calendula's scaffolding).
  */
-val FloretTypography = Typography()
+val AgendulaTypography = Typography()

app/src/main/java/de/jeanlucmakiola/floret/MainActivity.kt

@@ -1,69 +0,0 @@
-package de.jeanlucmakiola.floret
-
-import android.content.Context
-import android.content.Intent
-import android.os.Bundle
-import androidx.activity.ComponentActivity
-import androidx.activity.compose.setContent
-import androidx.activity.enableEdgeToEdge
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.runtime.getValue
-import androidx.compose.ui.Modifier
-import androidx.hilt.navigation.compose.hiltViewModel
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import androidx.lifecycle.lifecycleScope
-import dagger.hilt.android.AndroidEntryPoint
-import de.jeanlucmakiola.floret.data.demo.DemoSeeder
-import de.jeanlucmakiola.floret.data.prefs.ThemeMode
-import de.jeanlucmakiola.floret.ui.RootScreen
-import de.jeanlucmakiola.floret.ui.settings.SettingsViewModel
-import de.jeanlucmakiola.floret.ui.theme.FloretTheme
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-
-/**
- * Single activity. The theme follows [SettingsViewModel]; [RootScreen] is the
- * (replaceable) functional scaffold over the real data layer. Task-detail intent
- * routing for reminder taps lands with the full UI.
- */
-@AndroidEntryPoint
-class MainActivity : ComponentActivity() {
-
-    @Inject lateinit var demoSeeder: DemoSeeder
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
-
-        // Debug-only sample data: `am start ... --ez floret_seed true`. Seeds a
-        // local (non-syncing) demo list once; no-op without the extra.
-        if (BuildConfig.DEBUG && intent.getBooleanExtra(EXTRA_SEED, false)) {
-            lifecycleScope.launch { runCatching { demoSeeder.seed() } }
-        }
-        setContent {
-            val settingsViewModel: SettingsViewModel = hiltViewModel()
-            val ui by settingsViewModel.state.collectAsStateWithLifecycle()
-            val darkTheme = when (ui.settings.themeMode) {
-                ThemeMode.SYSTEM -> isSystemInDarkTheme()
-                ThemeMode.LIGHT -> false
-                ThemeMode.DARK -> true
-            }
-            FloretTheme(darkTheme = darkTheme, dynamicColor = ui.settings.dynamicColor) {
-                RootScreen(modifier = Modifier.fillMaxSize())
-            }
-        }
-    }
-
-    companion object {
-        const val EXTRA_TASK_ID = "de.jeanlucmakiola.floret.extra.TASK_ID"
-        private const val EXTRA_SEED = "floret_seed"
-
-        /** Opens the app focused on a task (reminder taps). Routing lands with the UI. */
-        fun taskIntent(context: Context, taskId: Long): Intent =
-            Intent(context, MainActivity::class.java).apply {
-                putExtra(EXTRA_TASK_ID, taskId)
-                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-            }
-    }
-}

app/src/main/java/de/jeanlucmakiola/floret/data/prefs/SettingsPrefs.kt

@@ -1,55 +0,0 @@
-package de.jeanlucmakiola.floret.data.prefs
-
-import androidx.datastore.core.DataStore
-import androidx.datastore.preferences.core.Preferences
-import androidx.datastore.preferences.core.booleanPreferencesKey
-import androidx.datastore.preferences.core.edit
-import androidx.datastore.preferences.core.intPreferencesKey
-import androidx.datastore.preferences.core.longPreferencesKey
-import androidx.datastore.preferences.core.stringPreferencesKey
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.map
-import javax.inject.Inject
-import javax.inject.Singleton
-
-enum class ThemeMode { SYSTEM, LIGHT, DARK }
-
-data class Settings(
-    val themeMode: ThemeMode = ThemeMode.SYSTEM,
-    val dynamicColor: Boolean = true,
-    /** The list a new task defaults to; `null` = first available. */
-    val defaultListId: Long? = null,
-    /** Default minutes before due to remind; 0 = at due time. */
-    val reminderLeadMinutes: Int = 0,
-)
-
-/** App preferences, backed by DataStore. Mirrors Calendula's prefs shape. */
-@Singleton
-class SettingsPrefs @Inject constructor(
-    private val dataStore: DataStore<Preferences>,
-) {
-    val settings: Flow<Settings> = dataStore.data.map { p ->
-        Settings(
-            themeMode = p[THEME_MODE]?.let { runCatching { ThemeMode.valueOf(it) }.getOrNull() }
-                ?: ThemeMode.SYSTEM,
-            dynamicColor = p[DYNAMIC_COLOR] ?: true,
-            defaultListId = p[DEFAULT_LIST_ID]?.takeIf { it > 0 },
-            reminderLeadMinutes = p[REMINDER_LEAD] ?: 0,
-        )
-    }
-
-    suspend fun setThemeMode(mode: ThemeMode) = dataStore.edit { it[THEME_MODE] = mode.name }
-    suspend fun setDynamicColor(enabled: Boolean) = dataStore.edit { it[DYNAMIC_COLOR] = enabled }
-    suspend fun setDefaultListId(id: Long?) = dataStore.edit {
-        if (id == null) it.remove(DEFAULT_LIST_ID) else it[DEFAULT_LIST_ID] = id
-    }
-
-    suspend fun setReminderLeadMinutes(minutes: Int) = dataStore.edit { it[REMINDER_LEAD] = minutes }
-
-    private companion object {
-        val THEME_MODE = stringPreferencesKey("theme_mode")
-        val DYNAMIC_COLOR = booleanPreferencesKey("dynamic_color")
-        val DEFAULT_LIST_ID = longPreferencesKey("default_list_id")
-        val REMINDER_LEAD = intPreferencesKey("reminder_lead_minutes")
-    }
-}

app/src/main/java/de/jeanlucmakiola/floret/data/tasks/TasksRepository.kt

@@ -1,31 +0,0 @@
-package de.jeanlucmakiola.floret.data.tasks
-
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskDetail
-import de.jeanlucmakiola.floret.domain.TaskFilter
-import de.jeanlucmakiola.floret.domain.TaskForm
-import de.jeanlucmakiola.floret.domain.TaskList
-import kotlinx.coroutines.flow.Flow
-
-/** Whether Floret can use the tasks provider right now. Drives onboarding. */
-enum class ProviderStatus { READY, NEEDS_PERMISSION, NO_PROVIDER }
-
-/**
- * The single entry point the UI layer uses. Flows re-emit automatically when the
- * provider changes (our writes *and* external sync like DAVx5), via the
- * data source's ContentObserver.
- */
-interface TasksRepository {
-    fun taskLists(): Flow<List<TaskList>>
-    fun tasks(filter: TaskFilter): Flow<List<Task>>
-    fun taskDetail(taskId: Long): Flow<TaskDetail?>
-
-    suspend fun createTask(form: TaskForm): Long
-    suspend fun updateTask(taskId: Long, form: TaskForm)
-    suspend fun setCompleted(taskId: Long, completed: Boolean)
-    suspend fun deleteTask(taskId: Long)
-    suspend fun createLocalList(name: String, color: Int): Long
-
-    /** Synchronous snapshot for the permission/onboarding gate. */
-    fun providerStatus(): ProviderStatus
-}

app/src/main/java/de/jeanlucmakiola/floret/domain/DayWindow.kt

@@ -1,18 +0,0 @@
-package de.jeanlucmakiola.floret.domain
-
-import java.time.ZoneId
-import kotlin.time.Instant
-
-/** Local-day boundaries used by the smart-list predicates. Pure + testable. */
-object DayWindow {
-
-    /** Returns `[startOfToday, startOfTomorrow)` in [zone] for the instant [now]. */
-    fun today(now: Instant, zone: ZoneId): Pair<Instant, Instant> {
-        val date = java.time.Instant.ofEpochMilli(now.toEpochMilliseconds())
-            .atZone(zone)
-            .toLocalDate()
-        val start = date.atStartOfDay(zone).toInstant().toEpochMilli()
-        val end = date.plusDays(1).atStartOfDay(zone).toInstant().toEpochMilli()
-        return Instant.fromEpochMilliseconds(start) to Instant.fromEpochMilliseconds(end)
-    }
-}

app/src/main/java/de/jeanlucmakiola/floret/domain/TaskForm.kt

@@ -1,32 +0,0 @@
-package de.jeanlucmakiola.floret.domain
-
-import kotlin.time.Instant
-
-/**
- * A validated create/edit form. Kept free of Android types so ViewModels and
- * tests can build and validate it on the JVM. The data layer turns it into
- * provider ContentValues ([de.jeanlucmakiola.floret.data.tasks.TaskWriteMapper]).
- */
-data class TaskForm(
-    val title: String,
-    val listId: Long,
-    val description: String? = null,
-    val start: Instant? = null,
-    val due: Instant? = null,
-    val isAllDay: Boolean = false,
-    val priority: Priority = Priority.NONE,
-    val parentId: Long? = null,
-    /** Minutes before [due] to fire a reminder; `null` = no reminder. */
-    val reminderMinutesBeforeDue: Int? = null,
-) {
-    fun validate(): Set<TaskFormError> = buildSet {
-        if (title.isBlank()) add(TaskFormError.BLANK_TITLE)
-        if (listId <= 0L) add(TaskFormError.NO_LIST)
-        if (start != null && due != null && due < start) add(TaskFormError.DUE_BEFORE_START)
-        if (reminderMinutesBeforeDue != null && due == null) add(TaskFormError.REMINDER_WITHOUT_DUE)
-    }
-
-    val isValid: Boolean get() = validate().isEmpty()
-}
-
-enum class TaskFormError { BLANK_TITLE, NO_LIST, DUE_BEFORE_START, REMINDER_WITHOUT_DUE }

app/src/main/java/de/jeanlucmakiola/floret/ui/common/GroupedList.kt

@@ -1,116 +0,0 @@
-package de.jeanlucmakiola.floret.ui.common
-
-import androidx.compose.animation.core.animateDpAsState
-import androidx.compose.foundation.interaction.MutableInteractionSource
-import androidx.compose.foundation.interaction.collectIsPressedAsState
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.heightIn
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.ListItem
-import androidx.compose.material3.ListItemDefaults
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.unit.Dp
-import androidx.compose.ui.unit.dp
-
-/**
- * Position of a row within a grouped list (the Android-15 settings pattern): a
- * run of rows shares one rounded container, full corners at the group's outer
- * edges and small corners between, separated by small gaps. Copied from
- * Calendula so the two apps read as one family.
- */
-enum class Position { Top, Middle, Bottom, Alone }
-
-fun positionOf(index: Int, count: Int): Position = when {
-    count <= 1 -> Position.Alone
-    index == 0 -> Position.Top
-    index == count - 1 -> Position.Bottom
-    else -> Position.Middle
-}
-
-/**
- * One row in a grouped list: an M3 [ListItem] over a tonal [Surface] whose
- * corner radii come from its [position] (so a run of rows reads as a single
- * rounded card). Corners morph further on press — the expressive shape play.
- */
-@OptIn(ExperimentalMaterial3Api::class)
-@Composable
-fun GroupedRow(
-    title: String,
-    position: Position,
-    modifier: Modifier = Modifier,
-    summary: String? = null,
-    selected: Boolean = false,
-    minHeight: Dp = 72.dp,
-    leading: @Composable (() -> Unit)? = null,
-    trailing: @Composable (() -> Unit)? = null,
-    onClick: (() -> Unit)? = null,
-) {
-    val interaction = remember { MutableInteractionSource() }
-    val pressed by interaction.collectIsPressedAsState()
-    val full by animateDpAsState(if (pressed) 36.dp else 22.dp, label = "fullCorner")
-    val small by animateDpAsState(if (pressed) 36.dp else 6.dp, label = "smallCorner")
-    val shape = when (position) {
-        Position.Alone -> RoundedCornerShape(full)
-        Position.Top -> RoundedCornerShape(
-            topStart = full, topEnd = full, bottomStart = small, bottomEnd = small,
-        )
-        Position.Middle -> RoundedCornerShape(small)
-        Position.Bottom -> RoundedCornerShape(
-            topStart = small, topEnd = small, bottomStart = full, bottomEnd = full,
-        )
-    }
-    val gap = when (position) {
-        Position.Top, Position.Middle -> Modifier.padding(bottom = 2.dp)
-        Position.Bottom, Position.Alone -> Modifier
-    }
-    val itemColors = if (selected) {
-        ListItemDefaults.colors(
-            containerColor = Color.Transparent,
-            headlineColor = MaterialTheme.colorScheme.onSecondaryContainer,
-            leadingIconColor = MaterialTheme.colorScheme.onSecondaryContainer,
-            supportingColor = MaterialTheme.colorScheme.onSecondaryContainer,
-            trailingIconColor = MaterialTheme.colorScheme.onSecondaryContainer,
-        )
-    } else {
-        ListItemDefaults.colors(containerColor = Color.Transparent)
-    }
-    val item: @Composable () -> Unit = {
-        ListItem(
-            headlineContent = { Text(title) },
-            supportingContent = summary?.let { text -> { Text(text) } },
-            leadingContent = leading,
-            trailingContent = trailing,
-            colors = itemColors,
-            modifier = Modifier.heightIn(min = minHeight),
-        )
-    }
-    val base = modifier
-        .fillMaxWidth()
-        .padding(horizontal = 16.dp)
-        .then(gap)
-    val containerColor = if (selected) {
-        MaterialTheme.colorScheme.secondaryContainer
-    } else {
-        MaterialTheme.colorScheme.surfaceContainerHigh
-    }
-    if (onClick != null) {
-        Surface(
-            onClick = onClick,
-            color = containerColor,
-            shape = shape,
-            interactionSource = interaction,
-            modifier = base,
-        ) { item() }
-    } else {
-        Surface(color = containerColor, shape = shape, modifier = base) { item() }
-    }
-}

app/src/main/java/de/jeanlucmakiola/floret/ui/edit/TaskEditViewModel.kt

@@ -1,144 +0,0 @@
-package de.jeanlucmakiola.floret.ui.edit
-
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.floret.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.floret.data.reminders.ReminderScheduler
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.domain.Priority
-import de.jeanlucmakiola.floret.domain.TaskForm
-import de.jeanlucmakiola.floret.domain.TaskFormError
-import de.jeanlucmakiola.floret.domain.TaskList
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-import kotlin.time.Instant
-
-/**
- * Editable form state for creating or editing a task. The screen renders these
- * fields and calls the `on*` setters; [save] validates, writes, re-syncs
- * reminders, and flips [TaskEditUiState.saved] for the screen to navigate back.
- */
-data class TaskEditUiState(
-    val loading: Boolean = true,
-    val isNew: Boolean = true,
-    val title: String = "",
-    val description: String = "",
-    val listId: Long? = null,
-    val start: Instant? = null,
-    val due: Instant? = null,
-    val isAllDay: Boolean = false,
-    val priority: Priority = Priority.NONE,
-    val parentId: Long? = null,
-    val reminderMinutesBeforeDue: Int? = null,
-    val lists: List<TaskList> = emptyList(),
-    val errors: Set<TaskFormError> = emptySet(),
-    val saveFailed: Boolean = false,
-    val saved: Boolean = false,
-)
-
-@HiltViewModel
-class TaskEditViewModel @Inject constructor(
-    private val repository: TasksRepository,
-    private val settingsPrefs: SettingsPrefs,
-    private val reminderScheduler: ReminderScheduler,
-) : ViewModel() {
-
-    private val _state = MutableStateFlow(TaskEditUiState())
-    val state: StateFlow<TaskEditUiState> = _state.asStateFlow()
-
-    private var editingTaskId: Long? = null
-
-    /** Start a fresh task, optionally pre-selecting a list / parent. */
-    fun bindNew(presetListId: Long? = null, parentId: Long? = null) {
-        editingTaskId = null
-        viewModelScope.launch {
-            val lists = runCatching { repository.taskLists().first() }.getOrElse { emptyList() }
-            val defaultList = presetListId
-                ?: settingsPrefs.settings.first().defaultListId
-                ?: lists.firstOrNull { !it.isLocal }?.id
-                ?: lists.firstOrNull()?.id
-            _state.value = TaskEditUiState(
-                loading = false,
-                isNew = true,
-                listId = defaultList,
-                parentId = parentId,
-                lists = lists,
-            )
-        }
-    }
-
-    /** Load an existing task for editing. */
-    fun bindEdit(taskId: Long) {
-        editingTaskId = taskId
-        viewModelScope.launch {
-            val lists = runCatching { repository.taskLists().first() }.getOrElse { emptyList() }
-            val task = runCatching { repository.taskDetail(taskId).first()?.task }.getOrNull()
-            if (task == null) {
-                _state.value = _state.value.copy(loading = false, lists = lists)
-                return@launch
-            }
-            _state.value = TaskEditUiState(
-                loading = false,
-                isNew = false,
-                title = task.title,
-                description = task.description.orEmpty(),
-                listId = task.listId,
-                start = task.start,
-                due = task.due,
-                isAllDay = task.isAllDay,
-                priority = task.priority,
-                parentId = task.parentId,
-                lists = lists,
-            )
-        }
-    }
-
-    fun onTitleChange(value: String) = update { it.copy(title = value, errors = emptySet()) }
-    fun onDescriptionChange(value: String) = update { it.copy(description = value) }
-    fun onListChange(listId: Long) = update { it.copy(listId = listId, errors = emptySet()) }
-    fun onStartChange(value: Instant?) = update { it.copy(start = value) }
-    fun onDueChange(value: Instant?) = update { it.copy(due = value) }
-    fun onAllDayChange(value: Boolean) = update { it.copy(isAllDay = value) }
-    fun onPriorityChange(value: Priority) = update { it.copy(priority = value) }
-    fun onReminderChange(minutesBeforeDue: Int?) = update { it.copy(reminderMinutesBeforeDue = minutesBeforeDue) }
-
-    fun save() {
-        val current = _state.value
-        val form = TaskForm(
-            title = current.title,
-            listId = current.listId ?: 0L,
-            description = current.description.ifBlank { null },
-            start = current.start,
-            due = current.due,
-            isAllDay = current.isAllDay,
-            priority = current.priority,
-            parentId = current.parentId,
-            reminderMinutesBeforeDue = current.reminderMinutesBeforeDue,
-        )
-        val errors = form.validate()
-        if (errors.isNotEmpty()) {
-            _state.value = current.copy(errors = errors)
-            return
-        }
-        viewModelScope.launch {
-            runCatching {
-                val id = editingTaskId
-                if (id == null) repository.createTask(form) else repository.updateTask(id, form)
-                reminderScheduler.sync()
-            }.onSuccess {
-                _state.value = _state.value.copy(saved = true, saveFailed = false)
-            }.onFailure {
-                _state.value = _state.value.copy(saveFailed = true)
-            }
-        }
-    }
-
-    private inline fun update(block: (TaskEditUiState) -> TaskEditUiState) {
-        _state.value = block(_state.value)
-    }
-}

app/src/main/java/de/jeanlucmakiola/floret/ui/tasklist/TaskListViewModel.kt

@@ -1,67 +0,0 @@
-package de.jeanlucmakiola.floret.ui.tasklist
-
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.floret.data.tasks.TasksRepository
-import de.jeanlucmakiola.floret.domain.Task
-import de.jeanlucmakiola.floret.domain.TaskFilter
-import de.jeanlucmakiola.floret.domain.TaskForm
-import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.catch
-import kotlinx.coroutines.flow.filterNotNull
-import kotlinx.coroutines.flow.flatMapLatest
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.onStart
-import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-
-sealed interface TaskListUiState {
-    data object Loading : TaskListUiState
-    data object Failure : TaskListUiState
-    data class Content(val tasks: List<Task>) : TaskListUiState
-}
-
-/**
- * The tasks for one [TaskFilter]. Call [bind] with the filter the screen shows;
- * the list re-emits live as the provider changes. Actions are fire-and-forget —
- * the resulting provider change flows back through the list automatically.
- */
-@OptIn(ExperimentalCoroutinesApi::class)
-@HiltViewModel
-class TaskListViewModel @Inject constructor(
-    private val repository: TasksRepository,
-) : ViewModel() {
-
-    private val filter = MutableStateFlow<TaskFilter?>(null)
-
-    val state: StateFlow<TaskListUiState> =
-        filter.filterNotNull()
-            .flatMapLatest { f ->
-                repository.tasks(f)
-                    .map<List<Task>, TaskListUiState> { TaskListUiState.Content(it) }
-                    .onStart { emit(TaskListUiState.Loading) }
-                    .catch { emit(TaskListUiState.Failure) }
-            }
-            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), TaskListUiState.Loading)
-
-    fun bind(taskFilter: TaskFilter) { filter.value = taskFilter }
-
-    fun toggleComplete(task: Task) = viewModelScope.launch {
-        runCatching { repository.setCompleted(task.taskId, !task.isCompleted) }
-    }
-
-    fun delete(task: Task) = viewModelScope.launch {
-        runCatching { repository.deleteTask(task.taskId) }
-    }
-
-    /** Inline "add task" — title only, into [listId]. */
-    fun quickAdd(title: String, listId: Long) = viewModelScope.launch {
-        if (title.isBlank() || listId <= 0L) return@launch
-        runCatching { repository.createTask(TaskForm(title = title, listId = listId)) }
-    }
-}

app/src/main/java/de/jeanlucmakiola/floret/ui/theme/Theme.kt

@@ -1,48 +0,0 @@
-package de.jeanlucmakiola.floret.ui.theme
-
-import android.os.Build
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
-import androidx.compose.material3.MaterialExpressiveTheme
-import androidx.compose.material3.MotionScheme
-import androidx.compose.material3.dynamicDarkColorScheme
-import androidx.compose.material3.dynamicLightColorScheme
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.platform.LocalContext
-
-/**
- * App theme. Honors:
- *   - System light/dark.
- *   - Dynamic Color on API 31+, else falls back to the hand-tuned scheme
- *     derived from [FloretSeed].
- *
- * Mirrors Calendula's theme: MaterialExpressiveTheme routes all component +
- * custom motion through MaterialTheme.motionScheme. STANDARD over expressive()
- * is the same deliberate choice — spring choreography without the overshoot.
- *
- * A Settings screen can later override dynamicColor and theme mode; the M0
- * foundation just follows the system.
- */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun FloretTheme(
-    darkTheme: Boolean = isSystemInDarkTheme(),
-    dynamicColor: Boolean = true,
-    content: @Composable () -> Unit,
-) {
-    val colorScheme = when {
-        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
-            val ctx = LocalContext.current
-            if (darkTheme) dynamicDarkColorScheme(ctx) else dynamicLightColorScheme(ctx)
-        }
-        darkTheme -> FloretDarkFallback
-        else -> FloretLightFallback
-    }
-
-    MaterialExpressiveTheme(
-        colorScheme = colorScheme,
-        typography = FloretTypography,
-        motionScheme = MotionScheme.standard(),
-        content = content,
-    )
-}

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-    Floret launcher icon foreground — PLACEHOLDER.
+    Agendula launcher icon foreground — PLACEHOLDER.
 
     A simple rounded check mark inside the 108dp adaptive-icon canvas
     (72dp safe zone). Deliberately not Calendula's calendar mark, so the two
-    apps never look alike. Replace with real branding (a stylized floret)
+    apps never look alike. Replace with real branding (a stylized agendula)
     when the design lands — see docs/PLAN.md §9.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"

app/src/main/res/values/strings.xml

@@ -1,9 +1,122 @@
 <resources>
-    <string name="app_name">Floret</string>
+    <string name="app_name">Agendula</string>
     <string name="app_tagline">A modern Material 3 Expressive task app.\nComing into bloom.</string>
 
     <!-- Generic -->
     <string name="task_untitled">Untitled task</string>
+    <string name="back">Back</string>
+    <string name="save">Save</string>
+    <string name="delete">Delete</string>
+
+    <!-- Task list -->
+    <string name="tasks_title">Tasks</string>
+    <string name="task_list_empty">No tasks here yet.</string>
+    <string name="task_list_failure">Could not load these tasks.</string>
+    <string name="smart_no_date">No date</string>
+    <string name="smart_completed">Completed</string>
+
+    <!-- Task detail -->
+    <string name="task_detail_title">Task</string>
+    <string name="task_detail_not_found">This task no longer exists.</string>
+    <string name="edit">Edit</string>
+
+    <!-- Task edit -->
+    <string name="edit_task_title">Edit task</string>
+    <string name="new_task_title">New task</string>
+    <string name="field_title">Title</string>
+    <string name="field_description">Description</string>
+    <string name="edit_save_failed">Could not save. Try again.</string>
+
+    <!-- Task list: inline add + swipe -->
+    <string name="add_task_hint">Add a task</string>
+    <string name="add_subtask_hint">Add a subtask</string>
+    <string name="cd_add_task">Add task</string>
+    <string name="cd_complete">Complete</string>
+    <string name="cd_reopen">Reopen</string>
+    <string name="task_deleted">Deleted</string>
+    <string name="undo">Undo</string>
+    <string name="cd_expand_subtasks">Show subtasks</string>
+    <string name="cd_collapse_subtasks">Hide subtasks</string>
+
+    <!-- Sections (due-date buckets) -->
+    <string name="section_overdue">Overdue</string>
+    <string name="section_today">Today</string>
+    <string name="section_upcoming">Upcoming</string>
+    <string name="section_no_date">No date</string>
+    <string name="section_completed">Completed</string>
+
+    <!-- Priority -->
+    <string name="priority_none">None</string>
+    <string name="priority_low">Low</string>
+    <string name="priority_medium">Medium</string>
+    <string name="priority_high">High</string>
+
+    <!-- Task detail -->
+    <string name="detail_mark_complete">Mark complete</string>
+    <string name="detail_mark_incomplete">Mark not complete</string>
+    <string name="detail_list">List</string>
+    <string name="detail_due">Due</string>
+    <string name="detail_start">Starts</string>
+    <string name="detail_priority">Priority</string>
+    <string name="detail_progress">Progress</string>
+    <string name="detail_subtasks">Subtasks</string>
+    <string name="detail_parent">Parent task</string>
+    <string name="detail_part_of">Part of</string>
+    <string name="percent_complete">%1$d%%</string>
+
+    <!-- Task edit -->
+    <string name="edit_list_label">List</string>
+    <string name="edit_start_label">Starts</string>
+    <string name="edit_due_label">Due</string>
+    <string name="edit_all_day">All day</string>
+    <string name="edit_priority_label">Priority</string>
+    <string name="edit_progress_label">Progress</string>
+    <string name="edit_parent_label">Parent task</string>
+    <string name="edit_parent_none">None (top-level)</string>
+    <string name="edit_parent_search">Search tasks</string>
+    <string name="edit_parent_empty">No matching tasks in this list.</string>
+    <string name="edit_reminder_label">Reminder</string>
+    <string name="edit_set">Set</string>
+    <string name="edit_clear">Clear</string>
+    <string name="edit_title_hint">Task title</string>
+    <string name="edit_when">When</string>
+    <string name="edit_more_fields">More fields</string>
+    <string name="close">Close</string>
+    <string name="dialog_cancel">Cancel</string>
+
+    <!-- Save conflict -->
+    <string name="edit_conflict_title">Task changed elsewhere</string>
+    <string name="edit_conflict_body">This task was updated somewhere else (a sync or another app) since you opened it. Overwrite those changes with your edits?</string>
+    <string name="edit_conflict_overwrite">Overwrite</string>
+
+    <!-- Reminder offsets -->
+    <string name="reminder_none">None</string>
+    <string name="reminder_at_due">At time of task</string>
+    <string name="reminder_5_min">5 minutes before</string>
+    <string name="reminder_10_min">10 minutes before</string>
+    <string name="reminder_30_min">30 minutes before</string>
+    <string name="reminder_1_hour">1 hour before</string>
+    <string name="reminder_1_day">1 day before</string>
+
+    <!-- Reminder custom lead time + per-list overrides -->
+    <string name="reminder_custom">Custom</string>
+    <string name="reminder_custom_with_value">Custom (%1$s)</string>
+    <string name="reminder_custom_set">Set</string>
+    <string name="reminder_custom_amount">Enter an amount</string>
+    <string name="reminder_use_default">Use default</string>
+    <string name="reminder_unit_minutes">Minutes</string>
+    <string name="reminder_unit_hours">Hours</string>
+    <string name="reminder_unit_days">Days</string>
+    <string name="reminder_unit_weeks">Weeks</string>
+    <string name="settings_list_reminders_title">Per-list reminders</string>
+    <string name="settings_list_reminders_hint">Override the default reminder for individual lists</string>
+    <string name="settings_list_reminder_inherits">Default (%1$s)</string>
+
+    <!-- Form validation -->
+    <string name="error_blank_title">Enter a title.</string>
+    <string name="error_no_list">Choose a list.</string>
+    <string name="error_due_before_start">Due can\'t be before the start.</string>
+    <string name="error_reminder_without_due">Set a due date to use a reminder.</string>
 
     <!-- Lists overview -->
     <string name="lists_header">Lists</string>
@@ -23,10 +136,86 @@
 
     <!-- Provider / permission onboarding -->
     <string name="onboarding_no_provider_title">A tasks app is needed</string>
-    <string name="onboarding_no_provider_body">Floret shows and edits the tasks stored by OpenTasks or tasks.org, synced by DAVx5. Install one of them to get started.</string>
+    <string name="onboarding_no_provider_body">Agendula shows and edits the tasks stored by OpenTasks or tasks.org, synced by DAVx5. Install one of them to get started.</string>
     <string name="onboarding_permission_title">Allow access to your tasks</string>
-    <string name="onboarding_permission_body">Floret needs permission to read and write your tasks. That\'s the only thing it ever asks for.</string>
+    <string name="onboarding_permission_body">Agendula needs permission to read and write your tasks. That\'s the only thing it ever asks for.</string>
     <string name="onboarding_permission_button">Grant task access</string>
     <string name="onboarding_install_opentasks">Install OpenTasks</string>
     <string name="onboarding_install_tasksorg">Install tasks.org</string>
+
+    <!-- Reminder onboarding (one-time, after the provider grant) -->
+    <string name="reminder_onboarding_title">Never miss what\'s due</string>
+    <string name="reminder_onboarding_body">Tasks apps don\'t send reminders themselves, so Agendula delivers them for you. Turn them on to get a notification when a task is due.</string>
+    <string name="reminder_onboarding_enable_button">Enable reminders</string>
+    <string name="reminder_onboarding_skip_button">Not now</string>
+    <string name="reminder_benefit_delivery_title">Agendula reminds you</string>
+    <string name="reminder_benefit_delivery_body">It schedules a notification for each task with a due date.</string>
+    <string name="reminder_benefit_timing_title">On your schedule</string>
+    <string name="reminder_benefit_timing_body">Choose how far ahead to be reminded in Settings.</string>
+    <string name="reminder_benefit_reversible_title">Change it anytime</string>
+    <string name="reminder_benefit_reversible_body">Turn reminders off whenever you like — it\'s just a switch.</string>
+
+    <!-- Settings -->
+    <string name="settings_title">Settings</string>
+    <string name="settings_section_appearance">Appearance</string>
+    <string name="settings_appearance_subtitle">Theme and colour</string>
+    <string name="settings_section_task_form">Task form</string>
+    <string name="settings_task_form_subtitle">Default fields, list and subtasks</string>
+    <string name="settings_reminders_subtitle">Notifications for due tasks</string>
+    <string name="settings_form_fields_hint">Fields shown by default on a new task. The rest sit behind \"More fields\".</string>
+    <string name="settings_dynamic_color_unavailable">Available on Android 12 and later</string>
+    <!-- About -->
+    <string name="settings_about_author">by Jean-Luc Makiola</string>
+    <string name="settings_about_source">Source</string>
+    <string name="settings_license">License</string>
+    <string name="settings_about_support">Support development</string>
+    <string name="settings_about_version">Version %1$s</string>
+    <string name="settings_about_logo_desc">Agendula app icon</string>
+    <string name="settings_language">App language</string>
+    <string name="settings_language_auto">System default</string>
+    <string name="settings_report_problem">Report a problem</string>
+    <string name="settings_report_problem_hint">Open the issue tracker</string>
+    <string name="about_source_url" translatable="false">https://gitea.jeanlucmakiola.de/makiolaj/agendula</string>
+    <string name="crash_report_issue_title">Crash report</string>
+    <string name="report_issue_url" translatable="false">https://gitea.jeanlucmakiola.de/makiolaj/agendula/issues/new</string>
+    <string name="about_license_url" translatable="false">https://gitea.jeanlucmakiola.de/makiolaj/agendula/src/branch/main/LICENSE</string>
+    <string name="about_support_url" translatable="false">https://ko-fi.com/jeanlucmakiola</string>
+    <string name="settings_theme">Theme</string>
+    <string name="settings_theme_system">Follow system</string>
+    <string name="settings_theme_light">Light</string>
+    <string name="settings_theme_dark">Dark</string>
+    <string name="settings_dynamic_color">Dynamic colour</string>
+    <string name="settings_dynamic_color_hint">Use colours from your wallpaper</string>
+    <string name="settings_section_reminders">Reminders</string>
+    <string name="settings_reminders">Due reminders</string>
+    <string name="settings_reminders_hint">Notify me when a task is due</string>
+    <string name="settings_default_reminder">When to remind</string>
+    <string name="settings_exact_alarms">Exact timing</string>
+    <string name="settings_exact_alarms_allowed">Reminders fire at the exact time</string>
+    <string name="settings_exact_alarms_blocked">Blocked — tap to allow exact reminders</string>
+    <string name="settings_section_tasks">Tasks</string>
+    <string name="settings_default_list">Default list</string>
+    <string name="settings_default_list_first">First available list</string>
+    <string name="settings_add_subtask_row">Show \"add a subtask\" row</string>
+    <string name="settings_add_subtask_row_hint">An add field at the end of an expanded task\'s subtasks</string>
+    <string name="settings_bottom_add_bar">Bottom quick-add bar</string>
+    <string name="settings_bottom_add_bar_hint">Add tasks from a bar pinned to the bottom of a list, instead of the floating button</string>
+
+    <!-- Reminder lead times (custom amounts) -->
+    <plurals name="reminder_minutes">
+        <item quantity="one">%1$d minute before</item>
+        <item quantity="other">%1$d minutes before</item>
+    </plurals>
+    <plurals name="reminder_hours">
+        <item quantity="one">%1$d hour before</item>
+        <item quantity="other">%1$d hours before</item>
+    </plurals>
+    <plurals name="reminder_days">
+        <item quantity="one">%1$d day before</item>
+        <item quantity="other">%1$d days before</item>
+    </plurals>
+    <plurals name="reminder_weeks">
+        <item quantity="one">%1$d week before</item>
+        <item quantity="other">%1$d weeks before</item>
+    </plurals>
 </resources>

app/src/main/res/values/themes.xml

@@ -1,5 +1,5 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
-    <style name="Theme.Floret" parent="android:Theme.Material.Light.NoActionBar">
+    <style name="Theme.Agendula" parent="android:Theme.Material.Light.NoActionBar">
         <item name="android:statusBarColor">@android:color/transparent</item>
         <item name="android:navigationBarColor">@android:color/transparent</item>
         <item name="android:windowLightStatusBar">true</item>

app/src/main/res/xml/locales_config.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    The languages Agendula ships translations for. Single source of truth: each
+    entry needs a matching res/values-<tag>/strings.xml, and is surfaced in both
+    the in-app language picker (parsed at runtime by AppLanguage) and the system
+    per-app language settings (Android 13+, via android:localeConfig). To add a
+    translation, drop in the values-<tag> folder and add one <locale> line here.
+-->
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <locale android:name="en" />
+</locale-config>

app/src/test/java/de/jeanlucmakiola/agendula/data/tasks/MapColumnReader.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 /** A [ColumnReader] backed by a Map, so mappers test without a real Cursor. */
 class MapColumnReader(private val values: Map<String, Any?>) : ColumnReader {

app/src/test/java/de/jeanlucmakiola/agendula/data/tasks/TaskMapperTest.kt

@@ -1,11 +1,11 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 import com.google.common.truth.Truth.assertThat
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Instances
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Lists
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Tasks
-import de.jeanlucmakiola.floret.domain.Priority
-import de.jeanlucmakiola.floret.domain.TaskStatus
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Instances
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Lists
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Tasks
+import de.jeanlucmakiola.agendula.domain.Priority
+import de.jeanlucmakiola.agendula.domain.TaskStatus
 import org.junit.jupiter.api.Test
 
 class TaskMapperTest {

app/src/test/java/de/jeanlucmakiola/agendula/data/tasks/TaskWriteMapperTest.kt

@@ -1,10 +1,10 @@
-package de.jeanlucmakiola.floret.data.tasks
+package de.jeanlucmakiola.agendula.data.tasks
 
 import com.google.common.truth.Truth.assertThat
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Lists
-import de.jeanlucmakiola.floret.data.tasks.TasksContract.Tasks
-import de.jeanlucmakiola.floret.domain.Priority
-import de.jeanlucmakiola.floret.domain.TaskForm
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Lists
+import de.jeanlucmakiola.agendula.data.tasks.TasksContract.Tasks
+import de.jeanlucmakiola.agendula.domain.Priority
+import de.jeanlucmakiola.agendula.domain.TaskForm
 import org.junit.jupiter.api.Test
 import kotlin.time.Instant
 
@@ -28,6 +28,50 @@ class TaskWriteMapperTest {
         assertThat(values[Tasks.TZ]).isEqualTo("Europe/Berlin")
     }
 
+    @Test
+    fun `percent complete is written and clamped to 0-100`() {
+        val values = TaskWriteMapper.taskValues(
+            TaskForm(title = "x", listId = 1L, percentComplete = 140),
+            tzId = "UTC",
+        )
+        assertThat(values[Tasks.PERCENT_COMPLETE]).isEqualTo(100)
+
+        val unset = TaskWriteMapper.taskValues(TaskForm(title = "x", listId = 1L), tzId = "UTC")
+        assertThat(unset[Tasks.PERCENT_COMPLETE]).isNull()
+    }
+
+    @Test
+    fun `progress keeps completion in sync both ways`() {
+        // 100% completes the task (timestamp left to the provider / existing value).
+        val done = TaskWriteMapper.taskValues(
+            TaskForm(title = "x", listId = 1L, percentComplete = 100),
+            tzId = "UTC",
+        )
+        assertThat(done[Tasks.STATUS]).isEqualTo(TasksContract.STATUS_COMPLETED)
+        assertThat(done.containsKey(Tasks.COMPLETED)).isFalse()
+
+        // Below 100% reopens it and clears the completion timestamp.
+        val reopened = TaskWriteMapper.taskValues(
+            TaskForm(title = "x", listId = 1L, percentComplete = 75),
+            tzId = "UTC",
+        )
+        assertThat(reopened[Tasks.STATUS]).isEqualTo(TasksContract.STATUS_IN_PROCESS)
+        assertThat(reopened[Tasks.COMPLETED]).isNull()
+
+        // No percent in the form ⇒ status is left to the complete toggle.
+        val untouched = TaskWriteMapper.taskValues(TaskForm(title = "x", listId = 1L), tzId = "UTC")
+        assertThat(untouched.containsKey(Tasks.STATUS)).isFalse()
+    }
+
+    @Test
+    fun `parent id is written so a task can be filed under another`() {
+        val values = TaskWriteMapper.taskValues(
+            TaskForm(title = "x", listId = 1L, parentId = 7L),
+            tzId = "UTC",
+        )
+        assertThat(values[Tasks.PARENT_ID]).isEqualTo(7L)
+    }
+
     @Test
     fun `all-day task clears the timezone`() {
         val form = TaskForm(

app/src/test/java/de/jeanlucmakiola/agendula/domain/ModelsTest.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 import com.google.common.truth.Truth.assertThat
 import org.junit.jupiter.api.Test

app/src/test/java/de/jeanlucmakiola/agendula/domain/TaskFilteringTest.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 import com.google.common.truth.Truth.assertThat
 import org.junit.jupiter.api.Test

app/src/test/java/de/jeanlucmakiola/agendula/domain/TaskFormTest.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 import com.google.common.truth.Truth.assertThat
 import org.junit.jupiter.api.Test
@@ -35,4 +35,13 @@ class TaskFormTest {
         val errors = TaskForm(title = "x", listId = 1, reminderMinutesBeforeDue = 10).validate()
         assertThat(errors).contains(TaskFormError.REMINDER_WITHOUT_DUE)
     }
+
+    @Test
+    fun `progress and parent auto-reveal only when they carry a value`() {
+        assertThat(TaskForm(title = "x", listId = 1).populatedFields()).isEmpty()
+        assertThat(TaskForm(title = "x", listId = 1, percentComplete = 0, parentId = 0).populatedFields())
+            .isEmpty()
+        assertThat(TaskForm(title = "x", listId = 1, percentComplete = 30, parentId = 9).populatedFields())
+            .containsExactly(TaskFormField.Progress, TaskFormField.Parent)
+    }
 }

app/src/test/java/de/jeanlucmakiola/agendula/domain/TaskSectionsTest.kt

@@ -0,0 +1,47 @@
+package de.jeanlucmakiola.agendula.domain
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+import kotlin.time.Instant
+
+class TaskSectionsTest {
+
+    private val dayMs = 86_400_000L
+    private val todayStart = Instant.fromEpochMilliseconds(1000 * dayMs)
+    private val todayEnd = Instant.fromEpochMilliseconds(1001 * dayMs)
+
+    private fun at(millis: Long) = Instant.fromEpochMilliseconds(millis)
+    private fun sectionOf(task: Task) = TaskSections.sectionOf(task, todayStart, todayEnd)
+
+    @Test
+    fun `buckets by due relative to today`() {
+        assertThat(sectionOf(testTask(due = at(1000 * dayMs - 1)))).isEqualTo(TaskSection.OVERDUE)
+        assertThat(sectionOf(testTask(due = at(1000 * dayMs + 1)))).isEqualTo(TaskSection.TODAY)
+        assertThat(sectionOf(testTask(due = at(1001 * dayMs + 1)))).isEqualTo(TaskSection.UPCOMING)
+        assertThat(sectionOf(testTask(due = null))).isEqualTo(TaskSection.NO_DATE)
+    }
+
+    @Test
+    fun `completed always lands in completed regardless of due`() {
+        val overdueButDone = testTask(status = TaskStatus.COMPLETED, due = at(1000 * dayMs - 1))
+        assertThat(sectionOf(overdueButDone)).isEqualTo(TaskSection.COMPLETED)
+    }
+
+    @Test
+    fun `of returns only non-empty sections in fixed order`() {
+        val tasks = listOf(
+            testTask(id = 1, due = at(1001 * dayMs + 1)),   // upcoming
+            testTask(id = 2, due = at(1000 * dayMs - 1)),   // overdue
+            testTask(id = 3, status = TaskStatus.COMPLETED), // completed
+        )
+        val sections = TaskSections.of(tasks, todayStart, todayEnd)
+        assertThat(sections.map { it.section })
+            .containsExactly(TaskSection.OVERDUE, TaskSection.UPCOMING, TaskSection.COMPLETED)
+            .inOrder()
+    }
+
+    @Test
+    fun `empty input yields no sections`() {
+        assertThat(TaskSections.of(emptyList(), todayStart, todayEnd)).isEmpty()
+    }
+}

app/src/test/java/de/jeanlucmakiola/agendula/domain/TaskSortingTest.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 import com.google.common.truth.Truth.assertThat
 import org.junit.jupiter.api.Test

app/src/test/java/de/jeanlucmakiola/agendula/domain/TestTasks.kt

@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.floret.domain
+package de.jeanlucmakiola.agendula.domain
 
 import kotlin.time.Instant
 

app/src/test/java/de/jeanlucmakiola/floret/domain/DayWindowTest.kt

@@ -1,35 +0,0 @@
-package de.jeanlucmakiola.floret.domain
-
-import com.google.common.truth.Truth.assertThat
-import org.junit.jupiter.api.Test
-import java.time.ZoneId
-import kotlin.time.Instant
-
-class DayWindowTest {
-
-    @Test
-    fun `today spans exactly 24h in UTC and contains now`() {
-        val zone = ZoneId.of("UTC")
-        val now = Instant.fromEpochMilliseconds(1_750_000_000_000L)
-        val (start, end) = DayWindow.today(now, zone)
-
-        assertThat(end.toEpochMilliseconds() - start.toEpochMilliseconds()).isEqualTo(86_400_000L)
-        assertThat(now >= start).isTrue()
-        assertThat(now < end).isTrue()
-        // In UTC, midnight aligns to a multiple of one day since the epoch.
-        assertThat(start.toEpochMilliseconds() % 86_400_000L).isEqualTo(0L)
-    }
-
-    @Test
-    fun `start is local midnight in a non-UTC zone`() {
-        val zone = ZoneId.of("Europe/Berlin")
-        val now = Instant.fromEpochMilliseconds(1_750_000_000_000L)
-        val (start, end) = DayWindow.today(now, zone)
-
-        val startLocal = java.time.Instant.ofEpochMilli(start.toEpochMilliseconds()).atZone(zone)
-        assertThat(startLocal.hour).isEqualTo(0)
-        assertThat(startLocal.minute).isEqualTo(0)
-        assertThat(now >= start).isTrue()
-        assertThat(now < end).isTrue()
-    }
-}

docs/ARCHITECTURE.md

@@ -1,6 +1,6 @@
-# Floret — architecture
+# Agendula — architecture
 
-This document describes how Floret is built **as it stands today**. For the
+This document describes how Agendula is built **as it stands today**. For the
 *why* behind the big decisions and the long-term plan, see
 [`PLAN.md`](PLAN.md); for status and what's next, see [`ROADMAP.md`](ROADMAP.md).
 
@@ -8,10 +8,10 @@ This document describes how Floret is built **as it stands today**. For the
 
 ## 1. The thesis in one sentence
 
-Floret is a Material 3 Expressive **front-end** over the OpenTasks
+Agendula is a Material 3 Expressive **front-end** over the OpenTasks
 `TaskContract` provider — it reads, writes, and reminds on top of a tasks store
 that some other app (DAVx5, SmoothSync, DecSync CC, tasks.org, …) syncs over
-CalDAV. **Floret owns no database and no sync stack.** It is the task-list
+CalDAV. **Agendula owns no database and no sync stack.** It is the task-list
 sibling to [Calendula](https://gitea.jeanlucmakiola.de/makiolaj/calendula),
 which does the same thing for `CalendarContract`.
 
@@ -69,7 +69,7 @@ Both are bound in Hilt in `data/di/DataModule.kt`.
 
 ## 3. Module & package layout
 
-Single `:app` module (Posture A). Package root `de.jeanlucmakiola.floret`.
+Single `:app` module (Posture A). Package root `de.jeanlucmakiola.agendula`.
 
 | Package | Contents |
 |---|---|
@@ -80,7 +80,7 @@ Single `:app` module (Posture A). Package root `de.jeanlucmakiola.floret`.
 | `data/di/` | `DataModule` (binds + provides), `Qualifiers` (`@IoDispatcher`). |
 | `data/demo/` | `DemoSeeder` (debug-only sample data). |
 | `ui/` | `theme/`, `common/` (GroupedList, ListChip), `lists/`, `tasklist/`, `detail/`, `edit/`, `settings/`, `permission/` (each a ViewModel + UiState; `lists` also has its screen), `RootScreen`. |
-| root | `FloretApp` (Hilt app), `MainActivity`. |
+| root | `AgendulaApp` (Hilt app), `MainActivity`. |
 
 ---
 
@@ -106,7 +106,7 @@ runtime perms for the active provider.
 ### 4.2 `TasksContract`
 
 A vendored subset of the Apache-2.0 OpenTasks `TaskContract` — column names,
-table paths, status/priority constants, the local-account type. Floret does
+table paths, status/priority constants, the local-account type. Agendula does
 **not** take a runtime dependency on OpenTasks; the authority is injected from
 `ProviderResolver`, never hardcoded in the contract.
 
@@ -117,7 +117,7 @@ occurrence is a row with the joined list colour, account, etc.), maps each
 cursor row through `ColumnReader` → `TaskMapper` → domain `Task`, and exposes
 the result as a `Flow`. A `ContentObserver` on the active authority's
 Tasks/TaskLists URIs bridges into the Flow via `callbackFlow`, so **any change
-re-emits** — Floret's own writes *and* external sync (DAVx5 pulling new tasks)
+re-emits** — Agendula's own writes *and* external sync (DAVx5 pulling new tasks)
 update the UI live, and multiple sync sources coexist in one list.
 
 ### 4.4 Writes — repository API
@@ -170,7 +170,7 @@ priority / etc.). None of this touches Android, which is why it's all in
 ## 6. Reminders — the one subsystem that does NOT mirror Calendula
 
 Calendula relies on the calendar provider broadcasting `EVENT_REMINDER`. **Tasks
-providers broadcast nothing**, so Floret schedules its own (`data/reminders/`):
+providers broadcast nothing**, so Agendula schedules its own (`data/reminders/`):
 
 - **`ReminderScheduler.sync()`** reads upcoming, non-closed, due-dated tasks
   within a rolling **30-day window**, computes each trigger as `due − lead`
@@ -186,7 +186,7 @@ providers broadcast nothing**, so Floret schedules its own (`data/reminders/`):
   sync changed the data). The store lets each run diff like Calendula diffs
   reminder rows.
 
-This is the single largest piece of genuinely-new code in Floret.
+This is the single largest piece of genuinely-new code in Agendula.
 
 ---
 
@@ -201,7 +201,7 @@ This is the single largest piece of genuinely-new code in Floret.
   domain, and `TasksRepository` do not change** — only the resolver's default and
   some manifest perms.
 
-Bundling the provider bundles **storage, not sync** — Floret stays a pure
+Bundling the provider bundles **storage, not sync** — Agendula stays a pure
 front-end over open backends either way.
 
 ---
@@ -228,8 +228,8 @@ checkbox/FAB/swipe motion).
 
 Hilt, `SingletonComponent`. `DataModule` has a `@Binds` module
 (`TasksDataSource` → `AndroidTasksDataSource`, `TasksRepository` →
-`TasksRepositoryImpl`) and a `@Provides` module (the `floret_prefs` DataStore,
-the `@IoDispatcher`). `FloretApp` is the `@HiltAndroidApp` entry point;
+`TasksRepositoryImpl`) and a `@Provides` module (the `agendula_prefs` DataStore,
+the `@IoDispatcher`). `AgendulaApp` is the `@HiltAndroidApp` entry point;
 `MainActivity` is `@AndroidEntryPoint`. ViewModels get the repository injected.
 
 ---

docs/PLAN.md

@@ -1,23 +1,25 @@
-# Floret — implementation plan
+# Agendula — implementation plan
 
 > A modern Material 3 Expressive **task** app for Android. Reads, writes, and
 > reminds — on top of an existing tasks provider (synced by DAVx5 / SmoothSync /
 > DecSync over CalDAV), with no own sync stack.
 >
 > Sibling to **Calendula**. Calendula is a calendar over `CalendarContract`;
-> Floret is a to-do list over the **OpenTasks `TaskContract` provider**. A
-> Calendula flower head is made of many small *florets* — the individual items
-> that make up the bloom.
+> Agendula is a to-do list over the **OpenTasks `TaskContract` provider**. The
+> name mirrors Calendula's: *agenda* (Latin, “things to be done”) + the `-ula`
+> ending — and a Calendula flower head is itself a cluster of small *florets*,
+> so the two apps are florets of one bloom.
 
-Working identifiers (placeholder, easily renamed):
-`applicationId = de.jeanlucmakiola.floret`, app name **Floret**.
+Identifiers: `applicationId = de.jeanlucmakiola.agendula`, app name **Agendula**
+(renamed from the working title *Floret*, which was promoted to the shared
+family / design-language name).
 
 ---
 
 ## 0. The thesis this app embodies
 
 A nice M3-Expressive front end over open backends, no reinvented storage or
-sync. Calendula proved the pattern against the OS calendar provider. Floret
+sync. Calendula proved the pattern against the OS calendar provider. Agendula
 applies it to tasks. The crucial difference: **there is no OS tasks provider**,
 so we depend on a tasks *provider app* being present — exactly as Calendula
 depends on a sync app like DAVx5 for CalDAV.
@@ -46,7 +48,7 @@ string leak above the data layer.**
 
 Calendula's layering is the template. Lift these **verbatim or near-verbatim**:
 
-| Area | From Calendula | Change for Floret |
+| Area | From Calendula | Change for Agendula |
 |---|---|---|
 | Gradle setup | `build.gradle.kts`, `settings.gradle.kts`, `gradle/libs.versions.toml`, wrapper, `key.properties` flow, versionCode-from-tag CI | namespace/appId only |
 | Build config | AGP 9.2.1, Kotlin 2.3.21, KSP, Hilt 2.59.2, compileSdk 37 / minSdk 29 / targetSdk 36, Java 17 | identical |
@@ -65,7 +67,7 @@ Calendula's layering is the template. Lift these **verbatim or near-verbatim**:
 `TaskContract` data layer, the task screens, and a **self-scheduled reminder
 engine** (see §6 — the one place Calendula's pattern does *not* carry over).
 
-### What does NOT exist here (why Floret is simpler than Calendula)
+### What does NOT exist here (why Agendula is simpler than Calendula)
 
 No month/week/day grid rendering. No recurrence-scoped writes ("this & following"
 vs "whole series"). No timezone/all-day gymnastics. Tasks are a flat-or-lightly-
@@ -76,7 +78,7 @@ nested list with a due date and a checkbox.
 ## 2. Module & package layout
 
 Single `:app` module for A (mirrors Calendula). Package root
-`de.jeanlucmakiola.floret`.
+`de.jeanlucmakiola.agendula`.
 
 ```
 domain/
@@ -111,10 +113,10 @@ ui/
   edit/                TaskEditScreen + VM + UiState
   settings/            (copy + adapt)
   permission/          provider-presence + permission + POST_NOTIFICATIONS onboarding
-  FloretHost.kt        nav host  (mirrors CalendarHost)
+  AgendulaHost.kt        nav host  (mirrors CalendarHost)
   RootScreen.kt
 widget/                Glance task widget (later milestone)
-FloretApp.kt, MainActivity.kt
+AgendulaApp.kt, MainActivity.kt
 ```
 
 ---
@@ -217,9 +219,9 @@ Material 3 Expressive throughout: `MaterialExpressiveTheme`,
 Three gates, in order:
 
 1. **Provider present?** `ProviderResolver.detect()`. If none → a screen
-   explaining Floret needs a tasks provider, with one-tap links to install
+   explaining Agendula needs a tasks provider, with one-tap links to install
    **OpenTasks** (FOSS) or **tasks.org**, plus "I use DAVx5 — set its Tasks app".
-   (This is Floret's "needs DAVx5" moment. Disappears entirely under Posture B.)
+   (This is Agendula's "needs DAVx5" moment. Disappears entirely under Posture B.)
 2. **Tasks read/write permission** — request the active provider's runtime perms
    (`org.dmfs.permission.*` etc.). Declared in the manifest *and* requested at
    runtime; resolved dynamically from the detected provider.
@@ -235,7 +237,7 @@ exactly like Calendula's launcher query.
 
 Calendula relies on the **calendar provider broadcasting `EVENT_REMINDER`** and
 just posts the notification (Etar model). **Tasks providers do not broadcast
-reminders.** So Floret must schedule its own:
+reminders.** So Agendula must schedule its own:
 
 - `DueReminderScheduler` (AlarmManager, exact alarms via `USE_EXACT_ALARM` /
   `SCHEDULE_EXACT_ALARM`) sets an alarm per task at `DUE` minus the chosen
@@ -273,7 +275,7 @@ receiver. **No `EVENT_REMINDER` receiver** (doesn't apply).
 ## 8. Milestones
 
 - **M0 — Skeleton.** Copy Gradle/version-catalog/theme/DI/app+activity from
-  Calendula, rename to Floret. Builds, shows themed empty scaffold. *(~½ day)*
+  Calendula, rename to Agendula. Builds, shows themed empty scaffold. *(~½ day)*
 - **M1 — Read path.** `TasksContract` + `ProviderResolver` + `OpenTasksDataSource`
   + repository. Lists overview + task list render real synced tasks (read-only),
   live-updating via ContentObserver. *(the meaty milestone)*
@@ -297,21 +299,22 @@ M4 (subtasks) and M5 (reminders) are the two spots needing real thought.
 
 ## 9. Open decisions / to verify
 
-1. **Name** — `Floret` is the working title (florets compose a Calendula head).
-   Confirm or replace before M0 (touches appId, namespace, package).
+1. ~~**Name**~~ — **Agendula** (final): *agenda* + Calendula's `-ula`. Renamed
+   from the working title *Floret*, which was promoted to the family /
+   design-language name.
 2. **tasks.org provider authority** — verify on a real device; OpenTasks
    (`org.dmfs.tasks`) is the certain target for v1.
 3. **jtx Board** — support its richer contract later, or stay OpenTasks-only?
-4. **B authority choice** — bundling `org.dmfs.tasks` makes Floret a *replacement*
+4. **B authority choice** — bundling `org.dmfs.tasks` makes Agendula a *replacement*
    for OpenTasks (one authority owner per device). Intended (one app instead of
    two), but a conscious choice.
 5. **Repo home** — sibling Gitea repo next to Calendula, MIT license, same CI.
 
 ---
 
-## 10. Sync sources Floret inherits for free (README copy)
+## 10. Sync sources Agendula inherits for free (README copy)
 
-Because Floret builds on the provider, not on any one sync app, it works with
+Because Agendula builds on the provider, not on any one sync app, it works with
 **anything that writes to the tasks provider**: DAVx5 (CalDAV), SmoothSync,
 CalDAV-Sync, DecSync CC, and any Android sync adapter — no per-app integration.
 Google Tasks / Microsoft To Do are out of scope by design (proprietary, would

docs/README.md

@@ -1,6 +1,6 @@
-# Floret — documentation
+# Agendula — documentation
 
-Floret is a Material 3 Expressive **task** app for Android: a pure front-end over
+Agendula is a Material 3 Expressive **task** app for Android: a pure front-end over
 the OpenTasks `TaskContract` provider (synced by DAVx5 / SmoothSync / DecSync
 over CalDAV), with no own database or sync stack. Sibling to
 [Calendula](https://gitea.jeanlucmakiola.de/makiolaj/calendula). See the
@@ -10,7 +10,7 @@ top-level [`../README.md`](../README.md) for the project pitch.
 
 | Doc | What it covers |
 |---|---|
-| [`ARCHITECTURE.md`](ARCHITECTURE.md) | How Floret is built **today** — layers, the data seam, provider resolution, the reminder engine, DI, build/tooling, manifest. Start here to work on the code. |
+| [`ARCHITECTURE.md`](ARCHITECTURE.md) | How Agendula is built **today** — layers, the data seam, provider resolution, the reminder engine, DI, build/tooling, manifest. Start here to work on the code. |
 | [`ROADMAP.md`](ROADMAP.md) | **Status** and what's next — milestones (M0–M6 + Posture B), what's done, open decisions, how to build/verify. |
 | [`PLAN.md`](PLAN.md) | The original implementation plan and **design rationale** — the A-now-B-later thesis, what transfers from Calendula, the locked decisions. The "why". |
 | [`RELEASING.md`](RELEASING.md) | How to cut a release — the git-tag-as-source-of-truth flow, CI jobs, F-Droid repo, required secrets. |

docs/RELEASING.md

@@ -1,6 +1,6 @@
-# Floret — releasing
+# Agendula — releasing
 
-Floret is distributed through a **self-hosted F-Droid repo** (on Hetzner) with a
+Agendula is distributed through a **self-hosted F-Droid repo** (on Hetzner) with a
 human-readable **Gitea release** per tag. Both are produced automatically by
 `.gitea/workflows/release.yaml` when you push a tag. There are no APK assets on
 the Gitea release itself — distribution lives in the F-Droid repo; the release is
@@ -94,7 +94,7 @@ Keep this green before tagging.
 
 ## F-Droid metadata
 
-App store listing lives in `fdroid-metadata/` (`de.jeanlucmakiola.floret.yml`
+App store listing lives in `fdroid-metadata/` (`de.jeanlucmakiola.agendula.yml`
 plus `en-US/` summary/description). Per-version changelogs are generated into the
 repo's `metadata/.../en-US/changelogs/<versionCode>.txt` from `CHANGELOG.md` at
 release time; metadata is uploaded alongside `repo/` so changelog history

docs/ROADMAP.md

@@ -1,4 +1,4 @@
-# Floret — roadmap
+# Agendula — roadmap
 
 Where the project is and where it's going. This is the **status** view; the
 design rationale behind each milestone lives in [`PLAN.md`](PLAN.md), and how the
@@ -11,9 +11,15 @@ Status legend: ✅ done · 🚧 in progress · ⬜ not started
 ## Current state (one line)
 
 The full non-visual stack ("backoffice") over the OpenTasks `TaskContract`
-provider is **done and unit-tested**; the Material 3 Expressive UI is being
-built screen by screen on top of it. App builds, gates on provider/permission,
-and renders the lists overview.
+provider is **done and unit-tested**, and the Material 3 Expressive UI is built
+through **M5**: lists → task list (swipe gestures, inline add, smart-list section
+headers) → detail / edit with full CRUD, date-time pickers, priority,
+percent-complete, conflict-safe saves, per-task reminders, and subtask
+create + reparent — plus a one-time reminder onboarding step and a Settings
+screen (theme, dynamic colour, due-reminder master toggle + default offset +
+exact-alarm status, default list, and the add-a-subtask-row opt-out). Remaining
+work is M6 (Glance widget, translations, F-Droid release; the Settings screen
+landed early with M5 and still needs a language entry).
 
 ---
 
@@ -39,36 +45,88 @@ The complete non-visual stack:
 - JVM unit tests across mappers, filtering, sorting, form, value mapping, and
   day windows.
 
-### 🚧 M2 — Screens: lists, task list, complete & CRUD
-Replace the functional scaffold with the real Material 3 Expressive UI, screen
-by screen, against the already-built ViewModels.
+### ✅ M2 — Screens: lists, task list, complete & CRUD
+The real Material 3 Expressive UI, built screen by screen against the M1
+ViewModels.
 - ✅ Provider/permission onboarding gate (`RootScreen`).
 - ✅ Lists overview (`ListsScreen`) — smart lists + user lists grouped by account.
-- 🚧 Navigation host wiring (the `onOpenFilter` / `onNewTask` callbacks in
-  `RootScreen` are currently stubs).
-- ⬜ Task list screen — checkbox rows, swipe-to-complete / swipe-to-delete,
-  inline add field, section headers for smart lists, FAB.
-- ⬜ Toggle complete (swipe + checkbox), create / edit / delete, local-list
-  creation wired to the UI.
+- ✅ Navigation host wiring (`AgendulaNavHost` + `Dest` route table: lists → task
+  list → detail / edit, each binding its M1 ViewModel from route args).
+- ✅ Task list screen — checkbox rows + toggle-complete, swipe-to-complete /
+  -delete (`SwipeToDismissBox`), inline add field (`InlineAdd` → `quickAdd`),
+  smart-list section headers (`TaskSections`).
+- ✅ Detail + edit screens — detail shows title / description / subtasks with
+  edit+delete; edit has the full CRUD form (title, description, save) wired to a
+  list picker.
 
-### ⬜ M3 — Detail / edit polish
-Task detail and edit screens: due/start date-time pickers, priority,
-percent-complete, conflict-safe saves (re-check before overwrite), smart-list
-section presentation.
+### ✅ M3 — Detail / edit polish
+- ✅ Due / start date-time pickers (`DateTimePickerFlow` in `TaskEditScreen`).
+- ✅ Priority — coloured by level: green / amber / red pastels (`priorityFill`;
+  M3 has no priority role, only `error`). A shared `ui/common/PriorityChip` on the
+  list and detail screens, and the edit form's M3 segmented selector tints its
+  active segment in the chosen level's hue.
+- ✅ Smart-list section presentation (`TaskSections` headers on the task list).
+- ✅ Percent-complete field — optional "Progress" slider (5% detents) on the edit
+  form; writes `Tasks.PERCENT_COMPLETE` (clamped 0–100, status left to the
+  complete toggle).
+- ✅ Conflict-safe saves — `updateTask` re-checks `last_modified` against the
+  value captured when the form loaded and throws `TaskConflictException`; the
+  editor offers overwrite-or-cancel instead of clobbering an external change.
 
-### ⬜ M4 — Subtasks (UI)
-`RELATED-TO` hierarchy in the UI: indentation, create subtask, reparent. The
-data layer already reads `parentId`; this is the trickiest UI piece.
+### ✅ M4 — Subtasks (UI)
+`RELATED-TO` hierarchy in the UI. The data layer already reads `parentId`.
+- ✅ Create subtask (`AddSubtaskField` → `TaskDetailViewModel.addSubtask` sets
+  `parentId`); subtasks render as a grouped section in the detail screen. Tapping
+  a subtask opens its own detail (a new `TaskDetail` entry, so it can have
+  children too), and the subtask's detail shows a tappable "Part of …" parent
+  card so it never reads as a stray standalone task.
+- ✅ Inline expansion on the task list — a parent row has a dedicated expand
+  button (trailing chevron, separate from the count chip). Each section flattens
+  into one grouped run (parents + their expanded children) and corners are chosen
+  per-edge (`cornerPosition`): top-level tasks keep their own run, an expanded
+  parent opens its bottom to its children, and the child group rounds off on its
+  last segment while the next top-level task stays mid-run. Children are
+  full-width, set a step down in tone (`surfaceContainer` vs the parents'
+  `surfaceContainerHigh`) and with no colour bar (checkbox stays aligned). An expanded group ends with an inline "add a subtask"
+  row (on by default; opt out in Settings → Tasks since M5).
+  Offered only where the list holds all the children (a real list; smart lists
+  that omit off-day children stay collapsed). `TaskDetail.parent` carries the
+  parent for the detail card.
+- ✅ Reparent — a full-width, searchable "Parent task" sheet on the edit form
+  groups active candidates by due-date section (Overdue / Today / Upcoming / No
+  date) and files a task under any top-level task in its list (or "None" to
+  promote it); switching list clears the now-invalid parent. Candidates stay
+  active + top-level to keep nesting one level deep, matching the detail screen.
 
-### ⬜ M5 — Reminders onboarding & polish
-The engine exists (M1). Remaining: the `POST_NOTIFICATIONS` + exact-alarm
-onboarding flow, per-task / default reminder-offset settings UI, and
-end-to-end verification on device.
+### ✅ M5 — Reminders onboarding & polish
+The engine exists (M1: `ReminderScheduler` + boot / provider-change re-sync,
+`DueReminderReceiver`, `TaskNotifier`).
+- ✅ Per-task reminder-offset UI (`ReminderPickerDialog` → `TaskForm`
+  `reminderMinutesBeforeDue`).
+- ✅ `POST_NOTIFICATIONS` onboarding flow — a one-time `ReminderOnboardingScreen`
+  (Calendula's shell + copy adapted for tasks) gated in `RootScreen` after the
+  provider/permission grant; it requests the runtime permission (API 33+) and
+  records the choice (`reminderOnboardingDone`). Re-requestable from Settings.
+- ✅ Exact-alarm surface — a status row in Settings → Reminders, shown only on
+  Android 12 (where `SCHEDULE_EXACT_ALARM` is revocable), deep-linking to the
+  system grant screen; on 13+ the app holds `USE_EXACT_ALARM` (always granted).
+- ✅ Default reminder-offset settings UI — exposed as "When to remind" in
+  Settings → Reminders (`reminderLeadMinutes`), behind a master `remindersEnabled`
+  switch that gates the entire engine (`ReminderScheduler` clears all alarms when
+  off; `DueReminderReceiver` suppresses any in-flight fire).
+- ⬜ End-to-end verification on device (build + unit tests green; not yet run on
+  a device with a live provider).
 
-### ⬜ M6 — Settings, widget, i18n, release
-Settings screen (theme / dynamic-color / language, default list, default
-reminder), Glance task-list widget, translations, finalize F-Droid metadata,
-confirm CI release flow.
+### 🚧 M6 — Settings, widget, i18n, release
+- ✅ F-Droid metadata scaffolded (`fdroid-metadata/`).
+- ✅ Settings screen — landed early with M5 (`SettingsScreen` in the nav graph,
+  reached by the gear on the lists overview). Covers theme, dynamic colour, due
+  reminders (toggle + default offset + exact-alarm status), default list, and the
+  add-a-subtask-row opt-out. Still ⬜ a **language** entry (deferred until there
+  are translations to switch to).
+- ⬜ Glance task-list widget — deps present in `build.gradle.kts`, zero impl.
+- ⬜ Translations — only `res/values/` (English); no `values-XX`.
+- ⬜ Finalize F-Droid metadata, confirm CI release flow.
 
 ### ⬜ Posture B (separate track, later)
 Add a `:provider` module bundling the Apache-2.0 `opentasks-provider`;
@@ -82,12 +140,12 @@ permissions; ship self-contained. UI / repository / domain untouched — see
 
 These carry over from [`PLAN.md`](PLAN.md) §9; resolved ones are struck through.
 
-1. ~~**Name** — `Floret`~~ confirmed (appId `de.jeanlucmakiola.floret`).
+1. ~~**Name** — `Agendula`~~ confirmed (appId `de.jeanlucmakiola.agendula`).
 2. ~~**tasks.org provider authority**~~ verified on device:
    `org.tasks.opentasks` + `org.tasks.permission.*`.
 3. **jtx Board** — support its richer contract later, or stay OpenTasks-only?
    (Not in the candidate list today.)
-4. **Posture B authority choice** — bundling `org.dmfs.tasks` makes Floret a
+4. **Posture B authority choice** — bundling `org.dmfs.tasks` makes Agendula a
    *replacement* for OpenTasks (one authority owner per device). Intended, but a
    conscious choice.
 5. **Recurring tasks** — read as occurrences today (`isRecurring` flag exists);

fdroid-metadata/de.jeanlucmakiola.agendula.yml

@@ -0,0 +1,10 @@
+AuthorName: Jean-Luc Makiola
+License: MIT
+Name: Agendula
+Summary: A modern Material 3 Expressive task app for Android.
+
+Categories:
+  - Time
+
+SourceCode: https://gitea.jeanlucmakiola.de/makiolaj/agendula
+IssueTracker: https://gitea.jeanlucmakiola.de/makiolaj/agendula/issues

fdroid-metadata/de.jeanlucmakiola.agendula/en-US/description.txt

@@ -1,4 +1,4 @@
-Floret is a modern, open-source task app for Android. It works directly on an
+Agendula is a modern, open-source task app for Android. It works directly on an
 existing tasks provider (OpenTasks / tasks.org), so any CalDAV tasks synced to
 your device via DAVx5, SmoothSync or DecSync show up automatically, and changes
 you make sync back the same way — no own account, no own sync.

fdroid-metadata/de.jeanlucmakiola.floret.yml

@@ -1,10 +0,0 @@
-AuthorName: Jean-Luc Makiola
-License: MIT
-Name: Floret
-Summary: A modern Material 3 Expressive task app for Android.
-
-Categories:
-  - Time
-
-SourceCode: https://gitea.jeanlucmakiola.de/makiolaj/floret
-IssueTracker: https://gitea.jeanlucmakiola.de/makiolaj/floret/issues

gradle/libs.versions.toml

@@ -22,6 +22,7 @@ kotlinxDatetime = "0.7.0"
 kotlinxCoroutines = "1.10.2"
 turbine = "1.2.0"
 hiltNavigationCompose = "1.3.0"
+navigationCompose = "2.9.0"
 lifecycleCompose = "2.10.0"
 androidxTestRules = "1.7.0"
 # Glance: 1.1.1 is the latest stable (1.2.0 is still rc, 1.3.0 alpha).
@@ -78,6 +79,9 @@ turbine = { group = "app.cash.turbine", name = "turbine", version.ref = "turbine
 # Hilt navigation-compose (for hiltViewModel() in Composables)
 androidx-hilt-navigation-compose = { group = "androidx.hilt", name = "hilt-navigation-compose", version.ref = "hiltNavigationCompose" }
 
+# Navigation-compose (the NavHost / back stack)
+androidx-navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "navigationCompose" }
+
 # Lifecycle compose (for collectAsStateWithLifecycle)
 androidx-lifecycle-runtime-compose = { group = "androidx.lifecycle", name = "lifecycle-runtime-compose", version.ref = "lifecycleCompose" }
 

settings.gradle.kts

@@ -11,9 +11,10 @@ pluginManagement {
         gradlePluginPortal()
     }
 }
-plugins {
-    id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
-}
+
+// No Gradle Java-toolchain auto-download resolver plugin: it can fetch a JDK at
+// build time, which an offline / reproducible F-Droid build scanner rejects.
+// Modules set jvmTarget directly, so no toolchain resolver is needed.
 
 dependencyResolutionManagement {
     repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
@@ -23,5 +24,6 @@ dependencyResolutionManagement {
     }
 }
 
-rootProject.name = "Floret"
+rootProject.name = "Agendula"
 include(":app")
+includeBuild("floret-kit")