Tree
Recursive hierarchy view with expand/collapse and selection. Suitable for org trees, category hierarchies, navigation. v1: no drag-and-drop, no cascading selection.
--tree-* tokens from components.css; data model is { id, label, children? }.Default
Selected: — · Expanded: uw, uw9
Keyboard navigation
- ArrowRight — expand current node
- ArrowLeft — collapse current node
- Enter / Space — select current node