---
phase: 02-layout-and-brand-identity
plan: 01
type: execute
wave: 1
depends_on: []
files_modified:
  - frontend/src/components/ui/alert.tsx
  - frontend/src/pages/LoginPage.tsx
  - frontend/src/pages/RegisterPage.tsx
  - frontend/src/pages/LoginPage.test.tsx
  - frontend/src/pages/RegisterPage.test.tsx
autonomous: true
requirements: [AUTH-01, AUTH-02, AUTH-03, AUTH-04]

must_haves:
  truths:
    - "Login page renders on a pastel gradient background, not plain white"
    - "Login page displays a gradient text wordmark for the app name"
    - "Register page has the same branded gradient and wordmark as login"
    - "Auth form errors display inside a styled Alert with an error icon"
  artifacts:
    - path: "frontend/src/components/ui/alert.tsx"
      provides: "shadcn Alert component with destructive variant"
    - path: "frontend/src/pages/LoginPage.tsx"
      provides: "Branded login with gradient bg, wordmark, alert errors"
      contains: "linear-gradient"
    - path: "frontend/src/pages/RegisterPage.tsx"
      provides: "Branded register matching login look"
      contains: "linear-gradient"
    - path: "frontend/src/pages/LoginPage.test.tsx"
      provides: "Unit tests for AUTH-01, AUTH-02, AUTH-04"
    - path: "frontend/src/pages/RegisterPage.test.tsx"
      provides: "Unit tests for AUTH-03"
  key_links:
    - from: "frontend/src/pages/LoginPage.tsx"
      to: "frontend/src/lib/palette.ts"
      via: "import palette for gradient light shades"
      pattern: "palette\\."
    - from: "frontend/src/pages/LoginPage.tsx"
      to: "frontend/src/components/ui/alert.tsx"
      via: "Alert destructive for error display"
      pattern: "Alert.*destructive"
---

<objective>
Brand the auth screens (login and register) with a pastel gradient background, gradient text wordmark, and styled error alerts -- transforming them from plain white cards into the first branded touchpoint users see.

Purpose: Login is the first impression. A branded auth surface sets the perceptual quality bar before users even reach the dashboard.
Output: Polished LoginPage.tsx and RegisterPage.tsx with gradient backgrounds, wordmark, Alert errors, and passing unit tests.
</objective>

<execution_context>
@/home/jean-luc-makiola/.claude/get-shit-done/workflows/execute-plan.md
@/home/jean-luc-makiola/.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/PROJECT.md
@.planning/ROADMAP.md
@.planning/STATE.md
@.planning/phases/02-layout-and-brand-identity/02-RESEARCH.md
@.planning/phases/02-layout-and-brand-identity/02-VALIDATION.md

@frontend/src/pages/LoginPage.tsx
@frontend/src/pages/RegisterPage.tsx
@frontend/src/lib/palette.ts

<interfaces>
<!-- Executor needs these from palette.ts for the gradient background -->

From frontend/src/lib/palette.ts:
```typescript
export const palette: Record<CategoryType, CategoryShades> = {
  saving: { light: 'oklch(0.95 0.04 280)', ... },
  bill: { light: 'oklch(0.96 0.03 250)', ... },
  investment: { light: 'oklch(0.96 0.04 320)', ... },
  // ... other types
}
```

From frontend/src/index.css (token values for wordmark gradient):
```css
--primary: oklch(0.50 0.12 260);
/* Shift hue to ~300-320 for the gradient end stop */
```

From LoginPage.tsx current structure:
```typescript
interface Props {
  auth: AuthContext
  onToggle: () => void
}
// Uses: useState for email, password, error, loading
// Renders: Card with CardHeader, form with CardContent, CardFooter
// Current wrapper: <div className="flex min-h-screen items-center justify-center bg-background">
// Current error: <p className="text-sm text-destructive">{error}</p>
```
</interfaces>
</context>

<tasks>

<task type="auto">
  <name>Task 1: Install shadcn Alert and create test scaffolds for auth pages</name>
  <files>frontend/src/components/ui/alert.tsx, frontend/src/pages/LoginPage.test.tsx, frontend/src/pages/RegisterPage.test.tsx</files>
  <action>
1. Install the shadcn alert component:
   ```bash
   cd frontend && bunx --bun shadcn add alert
   ```
   Verify `frontend/src/components/ui/alert.tsx` exists after installation.

2. Create `frontend/src/pages/LoginPage.test.tsx` with these test cases (all should FAIL initially since the features are not yet implemented):
   - AUTH-01: Login page wrapper div has an inline style containing `linear-gradient` (gradient background)
   - AUTH-02: Login page renders an element with `data-testid="wordmark"` that has an inline style containing `background` (gradient text)
   - AUTH-04: When error state is set, an element with `role="alert"` is rendered (shadcn Alert uses role="alert")
   - AUTH-04: The alert contains an AlertCircle icon (verify by checking for an SVG inside the alert)

3. Create `frontend/src/pages/RegisterPage.test.tsx` with these test cases:
   - AUTH-03: Register page wrapper div has an inline style containing `linear-gradient`
   - AUTH-03: Register page renders an element with `data-testid="wordmark"`

Test setup notes:
- Import `{ render, screen }` from `@testing-library/react`
- LoginPage requires `auth` prop with `login` function and `onToggle` prop -- mock them with `vi.fn()`
- RegisterPage requires `auth` prop with `register` function and `onToggle` prop
- Both pages use `useTranslation` -- mock `react-i18next` with `vi.mock('react-i18next', () => ({ useTranslation: () => ({ t: (key: string) => key }) }))`
- The `AuthContext` type must be satisfied: `{ user: null, loading: false, login: vi.fn(), register: vi.fn(), logout: vi.fn(), token: null }`
  </action>
  <verify>
    <automated>cd /home/jean-luc-makiola/Development/projects/SimpleFinanceDash/frontend && bun vitest run src/pages/LoginPage.test.tsx src/pages/RegisterPage.test.tsx --reporter=verbose 2>&1 | tail -20</automated>
  </verify>
  <done>alert.tsx exists in ui/, LoginPage.test.tsx has 4 test cases, RegisterPage.test.tsx has 2 test cases. Tests run (expected: most FAIL since features not yet implemented).</done>
</task>

<task type="auto">
  <name>Task 2: Brand LoginPage and RegisterPage with gradient background, wordmark, and Alert errors</name>
  <files>frontend/src/pages/LoginPage.tsx, frontend/src/pages/RegisterPage.tsx</files>
  <action>
Apply all four AUTH requirements to both auth pages simultaneously (AUTH-03 requires register to mirror login).

**LoginPage.tsx changes:**

1. Add imports:
   ```typescript
   import { palette } from '@/lib/palette'
   import { Alert, AlertDescription } from '@/components/ui/alert'
   import { AlertCircle } from 'lucide-react'
   ```

2. Replace the outer wrapper div `bg-background` with a gradient background using palette light shades (AUTH-01):
   ```tsx
   <div
     className="flex min-h-screen items-center justify-center"
     style={{
       background: `linear-gradient(135deg, ${palette.saving.light}, ${palette.bill.light}, ${palette.investment.light})`,
     }}
   >
   ```
   Use the `light` shades (lightness 0.95-0.97, chroma 0.03-0.04) for a subtle tinted-paper feel, NOT medium or base shades which would be too saturated as backgrounds.

3. Add a gradient text wordmark in the CardHeader (AUTH-02). Replace the `<CardDescription>{t('app.title')}</CardDescription>` with a styled wordmark element:
   ```tsx
   <span
     data-testid="wordmark"
     className="text-2xl font-bold tracking-tight"
     style={{
       background: `linear-gradient(to right, oklch(0.50 0.12 260), oklch(0.50 0.12 320))`,
       WebkitBackgroundClip: 'text',
       WebkitTextFillColor: 'transparent',
       backgroundClip: 'text',
     }}
   >
     {t('app.title')}
   </span>
   ```
   The gradient goes from --primary hue (260) to a pink-shifted hue (320). Keep `<CardTitle>{t('auth.login')}</CardTitle>` as-is above the wordmark.

4. Replace the plain error `<p>` with a shadcn Alert (AUTH-04):
   ```tsx
   {error && (
     <Alert variant="destructive">
       <AlertCircle className="h-4 w-4" />
       <AlertDescription>{error}</AlertDescription>
     </Alert>
   )}
   ```

5. Add `shadow-lg` to the Card for visual lift against the gradient: `<Card className="w-full max-w-md shadow-lg">`

**RegisterPage.tsx changes (AUTH-03):**

Apply the identical structural changes as LoginPage:
- Same gradient background wrapper with palette light shades
- Same wordmark element with `data-testid="wordmark"`
- Same Alert destructive for error display
- Same Card shadow-lg
- Keep `<CardTitle>{t('auth.register')}</CardTitle>` (not login)
- Import palette, Alert, AlertDescription, AlertCircle

Both files should be near-mirrors structurally. The only differences are: CardTitle text, form fields (register has displayName), submit handler, footer link text.
  </action>
  <verify>
    <automated>cd /home/jean-luc-makiola/Development/projects/SimpleFinanceDash/frontend && bun vitest run src/pages/ --reporter=verbose && bun run build 2>&1 | tail -5</automated>
  </verify>
  <done>All 6 test cases pass (4 LoginPage + 2 RegisterPage). Production build succeeds. LoginPage and RegisterPage both render gradient backgrounds, gradient text wordmarks, and Alert-based error displays.</done>
</task>

</tasks>

<verification>
- `cd frontend && bun vitest run src/pages/ --reporter=verbose` -- all tests green
- `cd frontend && bun run build` -- zero errors
- `cd frontend && bun vitest run` -- full suite green (no regressions)
</verification>

<success_criteria>
- Login page has a pastel gradient background using palette.ts light shades (not plain white)
- Both auth pages display a gradient text wordmark for the app name
- Auth errors render in a shadcn Alert with destructive variant and AlertCircle icon
- Register page is structurally identical to login in branding treatment
- All new and existing tests pass, production build succeeds
</success_criteria>

<output>
After completion, create `.planning/phases/02-layout-and-brand-identity/02-layout-and-brand-identity-02-01-SUMMARY.md`
</output>