hyperflow-design

# hyperflow-design — design phase (Antigravity single-agent) Design system and taste, not production code. Follow the `hyperflow` doctrine. ## Steps 1. **Design system first.** Ensure `.hyperflow/design/system.md` exists — create it if missing, extend it (never regenerate) if present: tokens, type scale, motion language, voice, component inventory, references, anti-patterns. 2. **Researched, not invented.** Study **≥2** real-world references from the project's own field, combine them, then add one deliberate signature move — never copy a single source. 3. **Taste applied.** Discover and apply the matching local taste skill(s); pass the anti-slop floor (no default AI gradient, no serif-by-default, one accent, locked corner-radius scale, eyebrow restraint, no duplicate-intent CTAs, hero fits the viewport, every motion communicates state). 4. **Record** the bound design-system tokens and the named signature into the spec. When a motion surface is in scope, apply the Motion-language standards (compositor-only props, spring params, reduced-motion fallback); when a mobile surface is in scope, apply the mobile platform/device/accessibility matrix. ## Rules - No production code — only the design system and the spec. - Defer to accessibility on any a11y conflict (the WCAG floor wins) and to security on any security conflict. - Every best-practice claim about a pattern cites a current source.