What problem does it solve? Building interfaces that match Coinbase's visual identity requires exact design tokens — colors, typography scales, button radii, and spacing — that are tedious to reverse-engineer from the live site. This Skill provides the complete Coinbase design system so generated UI matches the brand without manual inspection. ## Core Features & Use Cases - Exact Design Tokens: Coinbase Blue (#0052ff), near-black (#0a0b0d), cool gray surfaces (#eef0f3), and hover states (#578bfa) with defined roles. - Typography & Component Specs: Four-font hierarchy (CoinbaseDisplay, CoinbaseSans, CoinbaseText, CoinbaseIcons), 56px pill buttons, card styles, form states, spacing and radius scales. - Light & Dark Previews: Bundled preview.html and preview-dark.html files show the full system rendered for visual verification. - Use Case: Ask for a crypto dashboard landing page styled like Coinbase, and the generated UI uses the correct blue accent, pill CTAs, tight 1.00 line-height hero headings, and alternating dark/light sections. ## Quick Start Create a landing page for a crypto portfolio app using the Coinbase design system with a hero section and pill-shaped signup button.