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name vulk-accessibility
description Accessibility and semantic HTML patterns. Triggers: accessible, a11y, aria, semantic, screen reader, keyboard
license MIT

Accessibility -- Essential Patterns

  1. Semantic HTML: Use correct elements (nav, main, section, article, aside, footer, header)
  2. Headings: One h1 per page, then h2 -> h3 -> h4 in order. Never skip levels
  3. Images: Always alt text. Decorative images: alt=""
  4. Buttons vs Links: Button for actions, anchor for navigation. Never div with onClick
  5. Focus: All interactive elements must be keyboard accessible with visible focus ring
  6. Color contrast: 4.5:1 minimum for text, 3:1 for large text
  7. Forms: Every input needs a label (visible or sr-only). Error messages linked with aria-describedby
  8. Reduced motion: Wrap animations in @media (prefers-reduced-motion: no-preference)