CSS Architecture

STACSS

Simple CSS architecture for humans and AI.

A lightweight convention for organizing Sass and CSS files in modern web applications. Designed for developers, teams, and AI-assisted coding workflows.

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Simplicity

Four directories. No configuration. No tooling required. You can understand the entire convention in under a minute.

Reusability

Clear separation between reusable components and view-specific styles prevents duplication and keeps your codebase clean.

AI Friendly

Predictable conventions let AI tools generate correctly placed, consistently named styles without needing custom instructions every time.