# CSS Development Guidelines

> Objective: Define standards for maintainable, scalable, performant, and accessible CSS across project types, covering methodology, design tokens, selectors, responsive design, animation, and tooling.

::: tip Source File
View the full rule: [`.agent/rules/css.md`](https://github.com/snowdreamtech/template/blob/main/.agent/rules/css.md)
:::

## Sections

- 1. Methodology & Architecture
- 1. Custom Properties & Design Tokens
- 1. Selectors & Specificity
- 1. Responsive Design & Layout
- 1. Performance, Animation & Tooling
