:root { color-scheme: light dark; }
body { margin: 0; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f7f7f4; color: #1c1c1a; }
main { min-height: 100vh; display: grid; place-items: center; padding: 32px; }
section { width: min(720px, 100%); }
h1 { font-size: clamp(40px, 9vw, 88px); line-height: .9; margin: 0 0 20px; letter-spacing: 0; }
h2 { font-size: 22px; margin: 32px 0 8px; }
p { font-size: 18px; line-height: 1.55; max-width: 560px; margin: 0 0 28px; color: #4a4a45; }
nav { display: flex; gap: 18px; margin-bottom: 36px; font-size: 15px; }
nav a { color: inherit; text-decoration: none; border-bottom: 2px solid #e84d3d; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(48px, 1fr)); gap: 12px; max-width: 420px; }
.shape { aspect-ratio: 1; background: #e84d3d; border: 2px solid #1c1c1a; }
.shape:nth-child(2) { border-radius: 50%; background: #ffd166; }
.shape:nth-child(3) { clip-path: polygon(50% 0, 100% 100%, 0 100%); background: #2a9d8f; border: 0; }
.shape:nth-child(4) { transform: rotate(12deg); background: #457b9d; }
.shape.big { max-width: 240px; }
footer { margin-top: 48px; font-size: 13px; color: #8a8a83; }
@media (prefers-color-scheme: dark) { body { background: #161615; color: #f4f1e8; } p { color: #c9c3b5; } .shape { border-color: #f4f1e8; } footer { color: #7b7b74; } }