Tailwind CSS (v4+) Overview Tailwind CSS v4 skill covering CSS-first configuration, design tokens, component patterns, shadcn/ui integration, dark mode, container queries, migration from v3, and custom utilities. When to use: Configuring Tailwind themes, building utility-first components, implementing dark mode, using container queries, migrating from v3, integrating shadcn/ui, troubleshooting build errors. When NOT to use: Tailwind v3 legacy projects that will not upgrade, projects using a different styling approach (CSS Modules, styled-components) without plans to adopt Tailwind. Quick Refe…