# Accessibility

WCAG 2.1 AA in both themes, tested separately.

## What has been done

- Semantic HTML, one h1 per page, no skipped heading levels.
- Skip-to-content link. Focus visible everywhere and never removed.
- Colour is never the only signal.
- Text resizes to 200%, reflows at 320px.
- Real alt text on content images. Every video requires a transcript.
- Works with JavaScript off. Respects prefers-reduced-motion. No cookie banner.

## What is known not to conform yet

- No manual screen reader pass on the lesson template.
- No text-to-speech.
- Reading age measured automatically but not checked by an independent person.
- English only.

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