body{margin:0;font-family:-apple-system,BlinkMacSystemFont,sans-serif;background:#f6f7f9;color:#111}main{min-height:100vh;display:grid;place-content:center;gap:16px;text-align:center}button{font:inherit;padding:12px 18px;border-radius:8px;border:1px solid #222;background:#111;color:white}