What problem does it solve? Styling web pages with a coherent, disciplined visual system is hard: colors proliferate, headings get bold and heavy, body text runs too wide, and mobile layouts break. This Skill provides a complete Swiss International Style design system with concrete Tailwind CSS classes, so every styling decision follows consistent rules for typography, color, spacing, and responsive layout. ## Core Features & Use Cases - Complete design tokens: IBM Plex Sans typography scale, stone color palette with opacity-based hierarchy, single accent color system, and 8px-based spacing grid. - Component patterns: Paste-ready Tailwind markup for buttons, cards, navigation, forms, tables, badges, dividers, and hero sections in both light and dark mode. - Audit and migration workflow: Step-by-step checklist for converting an existing page to the system, including palette collapse, typography fixes, responsive breakpoints, and a pre-ship checklist. - Use Case: Ask the AI to restyle a landing page; it applies the 12-column grid, fluid type scale, stone palette with dark-mode variants, and one accent color, then verifies mobile behavior at 375px, 768px, and 1280px. ## Quick Start Restyle my landing page using the Swiss design system with IBM Plex Sans, the stone palette, and the default Swiss red accent.