.card {
        border: 1px solid #ddd;
        padding: 20px;
        margin-bottom: 20px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        background-color: #fff;
    }

    .card img {
        width: 100%;
    }

    .card-header {
        font-size: 18px;
        font-weight: bold;
        margin-bottom: 15px;
        position: relative;
        margin-top: 10px;
        margin-bottom: 10px;
    }

    .ribbon {
        position: absolute;
        top: -10px;
        right: -10px;
        background-color: #f39c12;
        padding: 5px 10px;
        color: #fff;
        font-size: 12px;
        font-weight: bold;
        text-transform: uppercase;
        transform: rotate(45deg);
    }

    .price {
        font-size: 16px;
        font-weight: bold;
        color: #27ae60;
        margin-bottom: 10px;
    }

    .old-price {
        text-decoration: line-through;
        color: #e74c3c;
        margin-left: 10px;
        font-weight: normal;
    }

    .card-body {
        margin-bottom: 15px;
    }

    .btn-custom {
        background-color: #3498db;
        color: white;
        border: none;
        border-radius: 4px;
        padding: 10px 15px;
    }

    .btn-custom:hover {
        background-color: #2980b9;
    }

    .card ul {
        padding-left: 20px;
    }

    .card ul li {
        list-style-type: disc;
        margin-bottom: 5px;
    }