body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    padding: 20px;
    text-align: center;
}

#wheel-container {
    margin: 20px auto;
    width: 300px;
    height: 300px;
    position: relative;
}

#wheel {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 8px solid #333;
    overflow: hidden;
    position: relative;
    transition: transform 4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

#pointer {
    width: 0;
    height: 0;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    border-bottom: 30px solid red;
    position: absolute;
    top: -30px;
    left: calc(50% - 20px);
}

.segment-label {
    position: absolute;
    width: 50%;
    left: 50%;
    top: 50%;
    transform-origin: 0% 0%;
    text-align: right;
    padding-right: 10px;
    font-size: 14px;
    color: #fff;
}

button {
    padding: 10px 20px;
    background: #007bff;
    color: #fff;
    border: none;
    margin-top: 15px;
    cursor: pointer;
}

button:disabled {
    background: #999;
    cursor: not-allowed;
}