:root{color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:#0b1020;color:#f5f7ff;font-family:Helvetica,Arial,sans-serif}.wrap{max-width:640px;padding:48px;text-align:center}.kicker{letter-spacing:.3em;text-transform:uppercase;font-size:.75rem;color:#a855f7;margin:0 0 12px}h1{font-size:clamp(2rem,6vw,3.5rem);margin:0 0 16px}.brief{color:#c9cede;line-height:1.6}footer{margin-top:40px;font-size:.8rem;color:#8a94a6}