# US-12 — Play accessibly

**As a** player with low vision, motor limitations, or motion sensitivity,
**I want** readable contrast, keyboard-only lobby use, and motion controls,
**so that** I can play and follow the game state.

## Acceptance criteria
1. All non-canvas UI (lobby, level list, result, HUD text) is real HTML with a logical
   focus order, visible focus rings, and ≥ 4.5:1 text contrast (3:1 for large text).
2. The entire lobby → level-select → start → result loop is operable with the keyboard
   only (no pointer required), with sensible default buttons.
3. Round start, score changes worth ≥ 10 points, order missed, and the round result are
   announced through a polite `aria-live` region; per-frame data is never announced.
4. `prefers-reduced-motion: reduce` removes screen shake, flicker, and parallax, keeping
   static hazard markers; the setting is also togglable in-game and persisted locally.
5. No information is conveyed by color alone: cooks, orders, and hazards have shape,
   label, or icon differences; a colorblind-safe palette option is provided.
6. Canvas has a text alternative: `role="img"` + an `aria-label` summarizing state, and
   a DOM "state panel" (toggleable) listing score, timer, orders, and hazards.
7. Text scales to 200% without loss of function; hit targets stay ≥ 44 px.
8. Sound is optional, off by default, and never required to know the game state.

## E2E suite
`tests/e2e/test_us12_accessibility.py` — keyboard-only loop, focus order, contrast audit
of computed styles, `aria-live` announcements for result, reduced-motion class applied.

## Phases
`07_canvas_client_and_hud`, `11_campaign_levels_and_progression`,
`14_accessibility_polish_and_hardening`