:root{color:#f4f7fb;background:#08111f;font-family:Arial,Helvetica,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}main{text-align:center;place-content:center;min-height:100vh;padding:24px;display:grid}h1{margin:0 0 12px;font-size:clamp(2rem,6vw,4rem)}p{opacity:.8;margin:0;font-size:1.1rem}