.dd-product-list {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.dd-product {
    border: 1px solid #ccc;
    padding: 15px;
    border-radius: 8px;
    transition: 0.3s;
}

.dd-product:hover {
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.dd-qr-box {
    border: 2px dashed #4caf50;
    border-radius: 10px;
    background: #f9fff9;
    padding: 15px;
    margin: 15px 0;
    text-align: center;
}

.dd-qr-box img {
    max-width: 200px;
    margin: 10px auto;
    display: block;
}

.dd-success-message {
    border: 2px solid green;
    background: #eaffea;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    color: green;
}