Overview
The demo is a workspace sidebar next to a notes page. Collapse it with its button or with Ctrl+B (Cmd+B on Mac); in rail mode each icon shows its label as a tooltip. The open or collapsed state is remembered between visits. Motion: enter: 240 ms, cubic-bezier(0.2,0.8,0.2,1); exit: 180 ms, cubic-bezier(0.4,0,1,1). Every duration and easing curve lives in one tokens file, so changing a value there changes the motion everywhere. With reduced motion turned on, the component changes state without movement and stays fully usable. Built with React 19 and TypeScript, Tailwind CSS 4 and Motion, with keyboard and screen reader behavior from Base UI. Light and dark themes come from CSS variables you can edit. Included: the component source, the accessible behavior it is built on, shared motion tokens, light and dark theme variables, a runnable demo page, and setup guides for people and for AI coding agents.
Highlights
- Production-ready, documented source
- Clean, componentized architecture
- Drops into your stack with minimal setup
