# Accessibility Standards

## Minimum Requirements
- WCAG 2.1 Level AA compliance
- Color contrast ratio: 4.5:1 for normal text, 3:1 for large text
- Touch targets: minimum 44x44px on mobile
- All interactive elements keyboard accessible
- Screen reader support for all content and actions

## Images
- All product images have alt text (item title + condition)
- Decorative images use empty alt=""
- Icon buttons have aria-label

## Forms
- All inputs have associated labels
- Error messages linked to fields via aria-describedby
- Required fields marked with aria-required

## Navigation
- Skip to main content link
- Logical heading hierarchy (h1 → h2 → h3)
- Focus management on route changes