.pm-products {
    display: grid;
    gap: 20px;
    margin: 30px 0;
}

.pm-columns-1 { grid-template-columns: repeat(1, 1fr); }
.pm-columns-2 { grid-template-columns: repeat(2, 1fr); }
.pm-columns-3 { grid-template-columns: repeat(3, 1fr); }
.pm-columns-4 { grid-template-columns: repeat(4, 1fr); }

.pm-product {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 5px;
}

.pm-product-image img {
    width: 100%;
    height: auto;
    display: block;
}

.pm-product-title {
    margin: 10px 0;
    font-size: 1.1em;
}

.pm-product-price {
    font-weight: bold;
    margin: 10px 0;
    color: #333;
}

.pm-add-to-cart {
    display: inline-block;
    padding: 8px 15px;
    background: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
}

.pm-add-to-cart:hover {
    background: #3e8e41;
}

.pm-footer {
    text-align: center;
    margin: 20px 0;
}

.pm-error {
    color: #d63638;
    padding: 15px;
    background: #f8ebea;
}

@media (max-width: 768px) {
    .pm-columns-2, 
    .pm-columns-3, 
    .pm-columns-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .pm-products {
        grid-template-columns: 1fr !important;
    }
}