The copy-paste component aesthetic of the modern React/Next.js era: Radix primitives styled with Tailwind, a neutral OKLCH-defined palette (white bg, near-black #0a0a0a foreground, #171717 primary, #e5e5e5 borders), 0.625rem radius, Geist or Inter type, CSS-variable theming, and instant dark mode by flipping the neutral scale.
Primary actionThe near-black primary button on a white card with hairline border, 10px radius, and a whisper of Tailwind shadow — plus the --background/--foreground CSS-variable pairing that made 'add dark mode' a one-class exercise.