Frontend Design Systems Build consistent, scalable UI components with systematic design patterns. Design Token System Color Tokens Spacing Scale Typography System Component Patterns Base Button Component Compound Components Layout Patterns Responsive Grid System Container Pattern State Management Patterns Form State Accessibility Patterns Integration Points Complements: - canvas-design : For design integration - accessibility-patterns : For ARIA/WCAG - responsive-design-patterns : For mobile-first - testing-patterns : For component testing ---