:root{color-scheme:light}*{box-sizing:border-box}body,html{margin:0;min-height:100%;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#fafaf7;color:#1a1a1a}main{min-height:100vh;display:grid;place-items:center;padding:32px}.card{max-width:760px;border:1px solid #e3e1d8;background:white;padding:28px;border-radius:18px}code{background:#f3f2ec;padding:2px 6px;border-radius:6px}