linting

In a Tailwind v4 project, Biome's CSS parser treats directives like `@custom-variant pointer-fine (@media (pointer: fine))` and `@theme` as syntax errors with the message "Tailwind-specific syntax is ...

When migrating a React+TypeScript frontend from ESLint (js.recommended + tseslint.recommended + react-hooks.recommended) to Biome (linter.rules.recommended: true), expect a wave of a11y errors that th...