Master hub for Tailwind CSS v4.3+ — the complete production stack. Use for setup (Vite/Next/PostCSS), CSS-first @theme tokens, design tokens (3-tier/DTCG), CVA + cn() + tailwind-merge, shadcn/ui, Radix headless, RTL/Arabic, dark mode & multi-theme, UAE AEGov Design System, Next.js 15 RSC, plugins (forms/typography), large-scale architecture & bundle perf, CSS/CSS Modules migration, and v3→v4 upgrades. No Tailwind v5 — v4 is current. Bundles 13 specialized skills (in skills/<name>/GUIDE.md). Use for any Tailwind task.
