.product-variants-title {
    margin-bottom: 20px;
    font-size: 14px !important;
    color: #444 !important;
    line-height: 16px !important;
    font-weight: bold !important;
}

.product-variants {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.product-variants a:hover {
    color: #444 !important;
}

.variant-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    text-decoration: none;
    color: #444 !important;
    min-width: 120px;
    width: 23.9%;
    text-align: center;
    transition: all 0.1s ease;
    position: relative;
}

.variant-item.active {
    border-color: #D0011B;
}

.variant-title {
    font-size: 12px;
    margin-bottom: 5px;
    font-weight: bold;
}

.variant-price, .out-of-stock {
    font-size: 12px;
    color: #444 !important;
}

.variant-item.active .variant-price {
    color: #444 !important;
}

/* Styles cho biến thể hết hàng */
.variant-item.out-of-stock {
    opacity: 1;
    position: relative;
    overflow: hidden;
}

.variant-item.out-of-stock::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top right,
        transparent calc(50% - 1px),
        rgba(209, 213, 219, 0.7) calc(50% - 1px),
        rgba(209, 213, 219, 0.7) calc(50% + 1px),
        transparent calc(50% + 1px));
    z-index: 1;
}

.variant-item.out-of-stock .variant-price {
    color: #dc3545 !important;
}

/* Hiệu ứng hover cho biến thể hết hàng */
.variant-item.out-of-stock:hover {
    opacity: 1;
}

/* Style mới cho biến thể active và hết hàng */
.variant-item.active.out-of-stock {
    opacity: 1;
}

.variant-item.active.out-of-stock::before {
    background: linear-gradient(to top right,
        transparent calc(50% - 1px),
        rgba(208, 1, 27, 0.7) calc(50% - 1px),
        rgba(208, 1, 27, 0.7) calc(50% + 1px),
        transparent calc(50% + 1px));
}

/* Thêm dấu v cho tất cả sản phẩm active (cả còn hàng và hết hàng) */
.variant-item.active::after {
    content: "✓";
    position: absolute;
    right: 0;
    top: 0;
    background-color: #D0011B;
    color: #fff;
    font-size: 10px;
    height: 13px;
    padding-bottom: 15px;
    padding-left: 2px;
    width: 18px;
    border-radius: 0 0 0 10px;
    z-index: 2;
}

.product-variants-wrapper {
    margin-top: 20px;
    margin-bottom: 20px;
}