.product-gallery img {
    width: 100%;
    border-radius: 10px;
}

.thumb {
    cursor: pointer;
    opacity: 0.7;
    border: 2px solid transparent;
    transition: 0.3s;
}

.thumb:hover,
.thumb.active {
    opacity: 1;
    border-color: #0d6efd;
}

.price {
    font-size: 28px;
    font-weight: bold;
    color: #0d6efd;
}

.old-price {
    text-decoration: line-through;
    color: #999;
    margin-left: 10px;
}

.btn-whatsapp {
    background: #25d366;
    color: #fff;
}

.btn-whatsapp:hover {
    background: #1ebe5d;
    color: #fff;
}