*{box-sizing:border-box}body{margin:0;background:#f2f2f7;color:#111827}@media (prefers-color-scheme: dark){body{background:#000;color:#f3f4f6}}input{padding:8px 12px;border-radius:8px;border:1px solid #d1d5db;font-size:15px;width:100%;max-width:280px}