Complete UI/UX Design System (Figma)

Act as a senior UX/UI designer. Create a design system for Product: [PRODUCT_NAME], Brand: [BRAND_NAME]. Include: Design tokens (colors, typography, spacing), Colors (primary, secondary, neutral, semantic), Typography (headings, body, captions), Components (buttons, inputs, dropdowns, cards, modals), Component states (hover, active, disabled, loading), Patterns (navigation, forms, tables, filters), Accessibility guidelines (WCAG 2.1 AA), Figma file structure, Figma plugins (auto-layout, variants, variables), and Handoff documentation for developers.