- Tailwind CSS v3 with postcss and autoprefixer
- shadcn/ui components.json and cn() utility
- Path alias @/ -> ./src/ in vite.config.ts and tsconfig.app.json
- CSS custom properties for shadcn theming (light/dark)
- tailwindcss-animate and @tailwindcss/typography plugins
- App.tsx uses cn() with Tailwind classes to verify integration
