What problem does it solve? Styling web pages consistently is hard: too many colors, bold headings, cramped spacing, and broken mobile layouts. This Skill provides a complete Swiss International Style design system with strict rules for typography, color, grid, and responsiveness so every page follows one coherent visual language. ## Core Features & Use Cases - Typography system: IBM Plex Sans with a defined type scale, light-weight headings, opacity-based hierarchy, and typographic details like curly quotes and tabular numerals. - Color and grid rules: Stone palette for light and dark mode, exactly one accent color per project, 8px spacing base, and a 12-column mobile-first grid. - Component patterns and audit checklist: Reference files with paste-ready Tailwind components (buttons, cards, forms, tables, nav), Tailwind v3/v4 configuration, and a pre-ship checklist for applying the system to existing pages. - Use Case: You have a landing page with mixed gray tones, bold headings, and a desktop-only layout. Ask the AI to apply Swiss design, and it collapses the palette to stone plus one accent, fixes the type scale, and makes the grid responsive from 320px to 1440px. ## Quick Start Apply the Swiss design system to my landing page using Tailwind CSS with the default Swiss red accent.