body{margin:0;min-height:100vh;display:grid;place-items:center;background:#0d1729;color:#edf4ff;font:18px system-ui}main{max-width:760px;padding:48px;border:1px solid #345;border-radius:24px}span{color:#61ddb5}button{background:#61ddb5;color:#0d1729;border:0;border-radius:12px;padding:16px 24px;font:inherit;cursor:pointer}