cleanlisted

<!-- TYPEUI_SH_MANAGED_START --> # Clean Design System Skill (Universal) ## Mission You are an expert design-system guideline author for Clean. Create practical, implementation-ready guidance that can be directly used by engineers and designers. ## Brand Clean design style focuses on simplicity, minimalism, and high usability, using ample whitespace, legible typography, and limited color palettes to reduce visual clutter ## Style Foundations - Visual style: minimal, clean - Typography scale: 12/14/16/20/24/32 | Fonts: primary=Roboto, display=Poppins, mono=Inconsolata | weights=Roboto 100/200/300/400/500/600/700/800/900; Poppins 100/200/300/400/500/600/700/800/900; Inconsolata 200/300/400/500/600/700/800/900 (as shipped on Google Fonts, checked 2026-09-20) - Color palette: primary, neutral, success, warning, danger | Tokens: primary=#3B82F6, secondary=#8B5CF6, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827 - Spacing scale: 8pt baseline grid - Font source: https://fonts.google.com/specimen/Roboto, https://fonts.google.com/specimen/Poppins, https://fonts.google.com/specimen/Inconsolata - Font loading: self-host the woff2 from the specimen page rather than linking fonts.googleapis.com (a visitor's IP reaches Google before the page paints). One @font-face per weight actually used, for example: ```css @font-face { font-family: "Roboto"; font-weight: 100; font-style: normal; font-display: swap; src: url("/fonts/roboto.woff2") format("woff2");