body{margin:0;padding:0;background:linear-gradient(135deg,#f9f9f9,#e0e0e0);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;height:100vh;display:flex;align-items:center;justify-content:center}.container{text-align:center;background:#fff;padding:2rem 3rem;border-radius:20px;box-shadow:0 8px 16px #0000001a}h1{font-size:2rem;color:#333;margin-bottom:1rem}p{font-size:4rem;color:#222;margin:1rem 0}button{background-color:#4caf50;color:#fff;border:none;padding:.75rem 1.5rem;font-size:1rem;border-radius:10px;cursor:pointer;transition:background-color .3s ease}button:hover{background-color:#45a049}