Tailwind CSS v4: The Zero-Runtime Revolution

Tailwind CSS v4 is a significant shift in how we think about utility-first CSS. It moves away from JavaScript-heavy configuration towards a CSS-first approach. ### The Oxide Engine The new engine is incredibly fast, offering nearly instantaneous rebuilds during development. It's written in Rust and optimized for performance. ### Simplified Config No more massive tailwind.config.js files. Most configurations can now be done directly within your CSS files using the @theme directive. This makes the dev experience much cleaner and closer to standard CSS.