.carousel-control-prev-icon,
.carousel-control-next-icon {
    background-color: rgba(200, 200, 200, 0.6); /* Màu khói, có độ trong suốt */
    border-radius: 50%;
    width: 40px;
    height: 40px;
    background-size: 60% 60%;
    background-position: center;
    background-repeat: no-repeat;
}

/* Hiệu ứng hover tăng độ rõ */
.carousel-control-prev:hover .carousel-control-prev-icon,
.carousel-control-next:hover .carousel-control-next-icon {
    background-color: rgba(160, 160, 160, 0.8);
}

.product-section {
    font-family: MMC, Arial, Helvetica, Verdana, sans-serif;
    color: #000;
    background-color: #fff;
}

    .product-section a {
        color: #c00;
    }

    .product-section .btn {
        background-color: #c00;
        border: none;
        color: white;
        font-size: .8em;
        font-weight: bolder;
        letter-spacing: .02em;
        text-transform: uppercase;
    }

    .product-section .product-info .product-title {
        text-transform: uppercase;
        color: #c00
    }

    .product-section .product-info .product-title {
        text-transform: uppercase;
        color: #c00
    }

    .product-section .product-info .product-price {
        color: #c00
    }