build-frontend

Keeps frontend code's structure, styling, and behavior separable so the look can swap without rewriting components. Core principles: 1. Semantic tokens named by role (--color-primary) not value (--blue-500) — all in one file 2. Model/View/Presenter layering — data/logic separate from markup 3. View components are pure functions of props — renderable in tests with no side effects To rebrand: only the token file changes. Color is never the sole signal for accessibility.