Blazing‑fast, modular CSS for design systems and app components

CSS Blocks is a lightweight CSS framework that brings the best practices of CSS Modules, BEM, and Atomic CSS together. It lets you write scoped, component‑level styles, compile them efficiently, and output optimized CSS for production. Ideal for design systems, it supports state‑based styling, size variants, and easy integration with React, Vue, or plain HTML, helping teams build consistent, high‑performance UI components.