.sp-variation-buttons {
    margin: 15px 0;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sp-variation-btn {
    padding: 8px 15px;
    border: 1px solid #333;
    background: white;
    cursor: pointer;
    transition: 0.2s;
}

.sp-variation-btn:hover {
    background: #333;
    color: white;
}

.sp-variation-btn.active {
    background: #000;
    color: white;
}

.sp-variation-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}