:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#0f172a;color:#e2e8f0}body{margin:0;background:#0f172a}a{color:#38bdf8}.container{padding:20px}.card{background:#1e293b;border-radius:12px;padding:16px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}