Accessibility Requirements Specification

Create detailed accessibility requirements for [product/feature] to meet WCAG 2.1 AA standards. Include: 1) Specific success criteria applicable to the feature with implementation guidelines, 2) User flows that require special attention, 3) Input and interaction requirements (keyboard navigation, screen reader support, etc.), 4) Visual design requirements (contrast, text size, color usage), 5) Content and language guidelines, 6) Error handling and messaging adaptations, 7) Testing methodology with tools and resources, 8) Priority levels for implementation, 9) Documentation requirements for accessibility features, and 10) Training needs for the team.