body{margin:0;background:#080b18;color:#fff;font-family:Arial,sans-serif}main{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center}h1{font-size:50px;background:linear-gradient(90deg,#7c3aed,#06b6d4);-webkit-background-clip:text;color:transparent}button{margin-top:30px;padding:15px 35px;border-radius:12px;border:none;background:#6366f1;color:#fff;font-size:18px}