Adopts a build-free modern CSS stack per todo.md: six cascade layers
(reset → tokens → base → layout → components → utilities), modern-normalize
in the reset layer, hand-rolled design tokens with an Open Props
cherry-pick workflow, and self-hosted Adelle (serif, headings) plus
Open Sans (variable, body) fonts. Existing starterkit component CSS is
wrapped in @layer components; the previously-misnamed `base` library is
renamed to `components`; YAML config files and architectural CSS files
gain explanatory headers; CLAUDE.md documents the full setup so future
work can pick it up cold.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
