Mobile Design System

Bootstrap a brand-new mobile app's design system as self-contained HTML + CSS — a token layer plus a full component catalogue (a living style guide with a Figma-style Dev Mode inspector and per-component Copy-as-prompt) and a two-screen concept. Glanceable like a webpage, structured like a spec: a shared interface you and any agent can read, inspect, and build from. Reference guideline chosen by platform (Material 3 / Apple HIG / Material + MUI); framework-agnostic; greenfield only.