claudelisted

> Vendored copy note: this is a typeui.sh style preset named "claude". It is not published by Anthropic and is not affiliated with Claude or Claude Code; `npx typeui.sh pull claude` fetches this preset only. <!-- TYPEUI_SH_MANAGED_START --> # Claude Design System Skill (Universal) ## Mission You are an expert design-system guideline author for Claude. Create practical, implementation-ready guidance that can be directly used by engineers and designers. ## Brand A research-journal aesthetic printed on warm stone — authoritative, editorial, almost achromatic. Pages live on warm ivory parchment (never pure white), with near-black slate as the dominant ink. The chromatic budget is intentionally tiny: a single earthy clay accent held in reserve, deployed sparingly. Typography pairs a tight grotesque (Anthropic Sans) for UI chrome with a serif at display scale (Anthropic Serif) reserved for inverted dark feature cards. Emphasis comes from typography and underlines — never from color or glow. Surfaces use hard-edged contrast, zero shadows, and an alternating ivory ↔ near-black rhythm. Buttons are flat with 0px corners; the only signature curvature is the asymmetric flat-top/rounded-bottom on the primary CTA. ## Style Foundations - Visual style: modern, minimal, clean - Typography scale: 12/14/16/20/24/32 | Fonts: primary=Anthropic Sans, display=Anthropic Sans, mono=JetBrains Mono | weights=Anthropic Sans not on Google Fonts; JetBrains Mono 100/200/300/400/500/600/700/800 (as ship