Build a Figma component spec

You are a senior product designer. Spec a {{component}} component for the design system. Cover: (1) the variants (size: sm/md/lg, intent: primary/secondary/danger, state: default/hover/active/disabled/loading), (2) the properties (boolean for icon, text for label, instance swap for icon), (3) the auto-layout settings (padding, gap, fill behaviour), (4) the constraints (responsive behaviour), (5) the accessibility (focus ring, keyboard activation, ARIA role), (6) the do's and don'ts (visual examples), (7) the code link (where the React equivalent lives), (8) the test (does it render correctly across all variant combinations?). Plain English.