fix: resolve five accessibility problems

[rahulkr182]

What does this change?

Fixes #99

Addresses the five accessibility issues identified in the issue:

1. Dark mode border contrast: Increased --border, --input, and --sidebar-border from 220 12% 16% to 220 12% 40% in src/index.css. The contrast ratio against --background: 220 15% 6% is now 3.13:1 (and 3.02:1 against --card: 220 15% 8%), hitting the WCAG 2.1 3:1 non-text contrast requirement.
2. Text below 12px: Replaced all instances of text-[10px] and text-[11px] across src/pages/PromptDetail.tsx, src/components/prompts/PromptCard.tsx, and src/components/prompts/SharePromptDialog.tsx with text-xs (12px / 0.75rem).
3. Hardcoded black over user images: Replaced text-black on the mobile menu trigger in src/components/prompts/PromptCard.tsx with an accessible frosted button (rounded-full bg-background/80 hover:bg-background/90 text-foreground backdrop-blur-sm border border-border/50 shadow-sm), guaranteeing legibility over both dark and light user images.
4. Reduced motion: Added a global @media (prefers-reduced-motion: reduce) block in src/index.css setting animation/transition durations to 0.01ms and scroll-behavior to auto.
5. Delete confirmation modal: Replaced the raw hand-rolled fixed inset-0 modal in src/components/prompts/PromptCard.tsx with Radix UI Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription, and DialogFooter, giving it focus trapping, Escape-to-close, scroll locking, and accessible dialog roles.
6. Accessibility automated tests: Added tests in src/components/prompts/PromptCard.test.tsx and src/accessibility.test.ts to assert contrast ratio >= 3:1, reduced motion styles, absence of sub-12px text, and dialog focus trap semantics.

Why?

• Dark mode borders were virtually invisible at ~1.3:1 contrast against the background.
• Sub-12px text made muted metadata difficult to read for people with low vision.
• Hardcoded black icon without a solid backing became unreadable when overlaid on dark user-uploaded images.
• Animations did not honor the system's prefers-reduced-motion accessibility setting for vestibular disorders.
• The prompt delete action used a raw div modal lacking focus trap, Escape key handling, and ARIA dialog semantics.

How was it tested?

• Added automated tests in src/components/prompts/PromptCard.test.tsx to verify Radix dialog accessibility and mobile menu overlay styling.
• Added automated tests in src/accessibility.test.ts checking WCAG contrast ratio, prefers-reduced-motion declaration, and text sizing.
• Ran all CI validation commands locally:
  • npm run lint (0 errors)
  • npm run typecheck (0 errors)
  • npm test (all 16 test files and 85 tests passed)
  • npm run build (production build succeeded)
  • npm run db:schema:check (up to date)

Checklist

• npm run lint passes
• npm run typecheck passes
• npm test passes
• npm run build passes
• Any new root-relative asset (/foo.png) is in public/, not src/assets/
• No credentials, keys, or .env files are included
• I've read the CLA in CONTRIBUTING.md

Summary by CodeRabbit

• Accessibility

  • Improved dark-mode border contrast.
  • Added reduced-motion support that minimizes animations and disables smooth scrolling when preferred.
  • Increased small text sizes to improve readability.

• User Interface

  • Updated mobile prompt-menu styling and icon sizing.
  • Replaced the delete confirmation with an accessible dialog that keeps actions disabled while deletion is in progress.
  • Updated sharing, rating, unrated-state, and upload-limit labels.

• Tests

  • Added coverage for accessibility requirements, mobile menu styling, and delete-dialog behavior.

[aashu2006]

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📥 Commits

Reviewing files that changed from the base of the PR and between 6f70073 and 4b42e9e.

📒 Files selected for processing (3)

• src/components/prompts/PromptCard.tsx
• src/pages/PromptDetail.tsx
• src/pages/Upload.tsx

🚧 Files skipped from review as they are similar to previous changes (2)

• src/pages/Upload.tsx
• src/pages/PromptDetail.tsx

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📝 Walkthrough

Walkthrough

The changes update dark-mode border contrast, reduced-motion behavior, and text sizing. PromptCard now uses the shared dialog for delete confirmation. Tests cover accessibility rules and prompt interactions.

Changes

Accessibility and prompt interaction updates

Layer / File(s)	Summary
Accessibility rules and validation src/index.css, src/accessibility.test.ts	Dark-mode border and input colors use higher lightness values. Reduced-motion rules minimize animation and transition durations. Tests check contrast, motion settings, and text-size patterns.
Prompt menu and delete dialog src/components/prompts/PromptCard.tsx, src/components/prompts/PromptCard.test.tsx	PromptCard uses shared dialog and button components for deletion. The mobile menu trigger styling and icon size are updated. Tests cover authenticated dialog opening, cancellation, menu dismissal, and mobile styling.
Minimum text sizing src/components/prompts/SharePromptDialog.tsx, src/components/prompts/PromptCard.tsx, src/pages/PromptDetail.tsx, src/pages/Upload.tsx	Share, rating, prompt-card, and upload labels use text-xs instead of fixed text sizes below 12px.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix · Severity of issue fixed: Medium

Suggested reviewers: aashu2006, 31devs

Merge Risk: ⚪ Minimal · up to 4b42e

The previously identified text-size test gap is fixed; no outstanding issue identified here prevents merging after normal checks.

Security Architecture Review

Security architecture risk: 🔵 Low · up to 6f700

The new confirmation dialog appears to preserve the existing ownership check and deletion path. Backend ownership enforcement could not be independently verified, so the remaining risk is uncertain rather than a confirmed regression.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The visible destructive path remains prompt-row deletion followed by cleanup of its associated image. The changed dialog does not establish a wider caller or privilege scope; database-policy coverage is insufficient to determine the independently attackable scope.

Trust Boundaries and Controls

• observed — The UI checks the authenticated profile against the creator before deletion, while the service accepts a user ID argument and filters database operations with it. The authoritative server-side ownership policy was not shown.

Resilience and Maintainability Implications

• observed — Cancel does not invoke deletion, and the UI disables repeat confirmation while a request is active. The service attempts image cleanup only after the row deletion reports no error; cross-client races and cleanup recovery were not established.

Hardening Proposals

• proposed — Verify that the deployed deletion policy binds prompt ownership to the authenticated database identity, independently of the user ID supplied by the client, and that profile and authentication IDs have the expected relationship.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 28.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 7 functions across 6 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely identifies the main change: resolving five accessibility problems.
Description check	✅ Passed	The description covers the change, rationale, testing, linked issue, implementation details, and most checklist items. Two non-critical checklist items are omitted: issue assignment and the limit on o…
Linked Issues check	✅ Passed	The PR addresses all five coding requirements in [#99]. src/index.css raises dark-mode border values and adds prefers-reduced-motion rules. The changed source files replace sub-12px text utilities…
Out of Scope Changes check	✅ Passed	The production changes support the five accessibility objectives in [#99]. The test changes verify those objectives. No unrelated change is established by the reviewed pull request summary.

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Inline comments:
In `@src/accessibility.test.ts`:
- Line 90: Update sub12pxRegex to also match decimal arbitrary text sizes below
12px, including values such as text-[11.5px], while continuing to allow 12.x
values and reject only sizes below 12px.

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Configuration used: defaults

Review profile: CHILL

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Run ID: e0b67699-874a-4a7e-9db4-8dac6995cfd1

📥 Commits

Reviewing files that changed from the base of the PR and between 0dc981c and 93a7931.

📒 Files selected for processing (6)

• src/accessibility.test.ts
• src/components/prompts/PromptCard.test.tsx
• src/components/prompts/PromptCard.tsx
• src/components/prompts/SharePromptDialog.tsx
• src/index.css
• src/pages/PromptDetail.tsx

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[31devs]

lgtm @rahulkr182, thanks!

[aashu2006]

good cleanup @rahulkr182 , all five from #99 are covered and the tests for them are also a good touch 👍

One bug with the new delete dialog on desktop: the dropdown menu stays open behind it. After you close the dialog, focus ends up nowhere and the page can't be clicked until you click away to dismiss the menu. That goes against the "focus handled properly" part of the issue. Left an inline with the fix (it's one line).

One small nit too, should be good after that!