:root {
    --coupon-code-background: #7d1338;
    --coupon-title-color: #333;
    --coupon-button-color: #7d1338;
    --primary-color: #7d1338;
}

.section_coupons {
    margin-bottom: 50px;
    margin-top: 30px;
}

.section_coupons .row {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
}

.coupon_item {
    position: relative;
    background: #fff;
    filter: drop-shadow(0px 0px 3px rgba(0, 0, 0, .15));
    display: flex;
    min-height: 100px;
    height: 100%;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.coupon_item .coupon_icon {
    width: 80px;
    flex: 0 0 80px;
    padding: 8px;
    background-color: var(--coupon-code-background);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Răng cưa bên trái */
.coupon_item .coupon_icon::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background-image: radial-gradient(circle at 0 5px, transparent 4px, white 4px);
    background-size: 5px 10px;
    z-index: 1;
}

.coupon_icon img {
    max-width: 100%;
    height: auto;
    filter: brightness(0) invert(1); /* Đảm bảo icon màu trắng trên nền đỏ */
}

.coupon_item .coupon_body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 12px 15px;
    flex-grow: 1;
}

.coupon_item .coupon_body .coupon_title {
    font-size: 15px;
    color: var(--coupon-title-color);
    font-weight: bold;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.coupon_item .coupon_body .coupon_desc {
    font-size: 13px;
    line-height: 1.3;
    color: #727272;
    margin-bottom: 10px;
}

.coupon_item .coupon_body .coupon_head {
    text-align: left;
}

.coupon_item .coupon_copy {
    background: var(--coupon-button-color);
    color: #fff;
    border: none;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s;
}

.coupon_item .coupon_copy:hover {
    filter: brightness(1.2);
    cursor: pointer;
}

.coupon_info_toggle {
    font-size: 13px;
    color: #353945;
    cursor: pointer;
    text-decoration: underline;
    margin-left: 10px;
}

@media (max-width: 1024px) {
    .section_coupons .row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 15px;
    }
    .section_coupons .row::-webkit-scrollbar {
        height: 4px;
    }
    .section_coupons .row::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 10px;
    }
    .col-card-coupon {
        flex: 0 0 280px;
    }
}