SimpleFinanceDash/.planning/phases/01-design-token-foundation/01-01-SUMMARY.md

phase, plan, subsystem, tags, dependency_graph, tech_stack, key_files, decisions, metrics

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	metrics
01-design-token-foundation	01	frontend/design-tokens	css-variables oklch tailwind palette vitest tdd	requires provides affects pastel oklch CSS variable system in index.css palette.ts typed category color module vitest test infrastructure frontend/src/index.css frontend/src/lib/palette.ts All future component visual work in Plan 02	added patterns vitest@4.0.18 @testing-library/react@16.3.2 @testing-library/jest-dom@6.9.1 @testing-library/user-event@14.6.1 jsdom@28.1.0 oklch pastel color tokens with non-zero chroma in :root Single-source-of-truth palette module with typed exports TDD with vitest globals and jsdom environment	created modified frontend/src/lib/palette.ts frontend/src/lib/palette.test.ts frontend/src/test-setup.ts frontend/src/index.css frontend/vite.config.ts frontend/package.json	oklch pastel tokens replace all zero-chroma neutrals in :root (--card and --popover remain pure white as locked) --success (oklch 0.55 0.15 145) and --warning (oklch 0.70 0.14 75) semantic tokens added to :root and registered in @theme inline --chart-1 through --chart-5 values synced with palette.ts base colors for bill, variable_expense, debt, saving, investment categories palette.ts exports amountColorClass() with isIncome/isAvailable path (positive=text-success, negative=text-destructive) and expense path (over-budget=text-warning)	duration completed_date tasks_completed files_created files_modified ~4 minutes 2026-03-11 3 3 3

Phase 1 Plan 01: Design Token Foundation Summary

Pastel oklch CSS variable system and palette.ts module established as the foundation layer for all subsequent visual work, with vitest test infrastructure installed and 20 unit tests passing.

Tasks Completed

Task	Name	Commit	Files
1	Install test infrastructure and set up vitest	cbf3552	frontend/package.json, frontend/vite.config.ts, frontend/src/test-setup.ts
2	Replace CSS tokens with pastel oklch values and add success/warning tokens	3f97d07	frontend/src/index.css
3	Create palette.ts and palette.test.ts (TDD)	d5fc10d (RED), 6859b30 (GREEN)	frontend/src/lib/palette.ts, frontend/src/lib/palette.test.ts

What Was Built

Pastel CSS variable system (frontend/src/index.css):

• All :root tokens now use oklch values with non-zero chroma (lavender tint, hue ~280-290) except for the intentionally pure-white --card and --popover
• --chart-1 through --chart-5 mapped to category base colors (bill=blue 250, variable_expense=amber 85, debt=rose 15, saving=violet 280, investment=pink 320)
• New --success (green 145) and --warning (amber 75) semantic tokens in :root
• --color-success and --color-warning registered in @theme inline enabling Tailwind utilities text-success, text-warning

Typed palette module (frontend/src/lib/palette.ts):

• CategoryType union: income | bill | variable_expense | debt | saving | investment | carryover
• CategoryShades interface with light/medium/base oklch strings
• palette Record — single source of truth, base colors match CSS chart tokens
• headerGradient(type) — returns React.CSSProperties with linear-gradient(to right, light, medium)
• overviewHeaderGradient() — multi-stop gradient (carryover.light → saving.light → income.light)
• amountColorClass(opts) — returns text-success/text-warning/text-destructive/'' per locked rules

Test infrastructure:

• vitest 4.0.18 with jsdom environment and globals
• test-setup.ts imports @testing-library/jest-dom matchers
• 20 unit tests covering all exports and edge cases — all passing

Decisions Made

1. --card and --popover intentionally remain oklch(1 0 0) (pure white) per locked design decision — cards float visually on the tinted background
2. --success-foreground and --warning-foreground use near-white oklch(0.99 0 0) — neutral foreground on colored semantic backgrounds is correct and intentional
3. Sidebar tokens use slightly deeper lavender (hue 280, chroma 0.01-0.02) vs background (hue 290, chroma 0.005) for subtle visual distinction
4. overviewHeaderGradient() uses carryover/saving/income lights (sky→lavender→green) for the FinancialOverview header identity

Deviations from Plan

None - plan executed exactly as written.

Self-Check

Files Exist

• frontend/src/lib/palette.ts: FOUND
• frontend/src/lib/palette.test.ts: FOUND
• frontend/src/test-setup.ts: FOUND
• frontend/src/index.css: FOUND (modified)

Commits Exist

• cbf3552 (Task 1): FOUND
• 3f97d07 (Task 2): FOUND
• d5fc10d (Task 3 RED): FOUND
• 6859b30 (Task 3 GREEN): FOUND

Self-Check: PASSED