Style: Swiss Modernism 2.0. Type: General. Keywords: Grid system, Helvetica, modular, asymmetric, international style, rational, clean, mathematical spacing. Primary Colors: #000000, #FFFFFF, #F5F5F5, single vibrant accent only. Secondary Colors: Minimal secondary, accent for emphasis only, no gradients. Effects & Animation: display: grid, grid-template-columns: repeat(12 1fr), gap: 1rem, mathematical ratios, clear hierarchy. Best For: Corporate sites, architecture, editorial, SaaS, museums, professional services, documentation. Do Not Use For: Playful brands, children's sites, entertainment, gaming, emotional storytelling. Light Mode: ✓ Full. Dark Mode: ✓ Full. Performance: ⚡ Excellent. Accessibility: ✓ WCAG AAA. Mobile-Friendly: ✓ High. Conversion-Focused: ✓ High. Framework Compatibility: Tailwind 10/10, Bootstrap 9/10, Foundation 10/10. Era/Origin: 1950s Swiss + 2020s. Complexity: Low. AI Prompt Keywords: Design with Swiss Modernism 2.0. Use: strict grid system (12 columns), Helvetica/Inter fonts, mathematical spacing, asymmetric balance, high contrast, minimal decoration, clean hierarchy, single accent color.. CSS/Technical: display: grid, grid-template-columns: repeat(12, 1fr), gap: 1rem (8px base unit), font-family: Inter/Helvetica, font-weight: 400-700, color: #000/#FFF, single accent. Implementation Checklist: ☐ 12-column grid strict, ☐ Spacing mathematical, ☐ Typography hierarchy clear, ☐ Single accent only, ☐ No decorations, ☐ High contrast verified. Design System Variables: --grid-columns: 12, --grid-gap: 1rem, --base-unit: 8px, --font-primary: Inter, --color-text: #000000, --color-bg: #FFFFFF, --accent: single vibrant.