Tailwind CSS

Writes and debugs Tailwind CSS: utility classes, theme config, dark mode, variants, plugins, and build setup. Not for CSS mechanics themselves — stacking contexts, flex sizing, and cascade behavior belong to the `css` skill. Use when a class produces no CSS, when dynamically built names (`bg-${color}-500`) never render, when styles work in dev but vanish after deploy, when your own CSS beats a utility or can't override one, when `@apply` breaks inside a Vue, Svelte, or CSS-module file, when `hover:`, `group-hover:`, `peer-*`, `has-[…]`, or `dark:` won't fire, when upgrading v3 to v4 (`@tailwin