What problem does it solve? Building web interfaces that look polished while meeting WCAG 2.1 AA accessibility requirements is error-prone, and developers often ship low-contrast text, invisible buttons, or missing focus states that fail accessibility audits. ## Core Features & Use Cases - Mandatory WCAG 2.1 AA Compliance Rules: Enforces color contrast ratios, visible button boundaries, focus indicators, and minimum 44px touch targets with explicit forbidden and safe color combinations. - Ready-to-Use Component Patterns: Provides Tailwind-based implementations for buttons, cards, inputs, glassmorphism effects, skeleton loaders, and layout grids with dark mode variants. - Design System Guidance: Defines spacing scales, typography hierarchies, semantic color tokens, and micro-interaction transitions for consistent visual output. - Use Case: When building a React landing page or dashboard, apply these patterns to generate components that pass contrast checks, support dark mode, and include proper focus rings without manual accessibility review. ## Quick Start Use the ui-web skill to build an accessible React dashboard card component with dark mode support and proper focus states.