body { font-family: sans-serif; text-align: center; background: #f4f4f4; }
.container { margin-top: 50px; }
input { padding: 10px; width: 200px; }
button { padding: 10px 20px; margin: 10px; }
.wheel-container { position: relative; width: 300px; margin: 30px auto; }
.wheel { width: 100%; transition: transform 5s ease-out; }
.pointer { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); width: 30px; }