:root{color:#17212b;background:#f8fafc;font-family:Arial,Helvetica,sans-serif}body{margin:0}main{box-sizing:border-box;place-items:center;min-height:100svh;padding:1.5rem;display:grid}h1{letter-spacing:-.05em;margin:0;font-size:clamp(2.5rem,8vw,5rem)}