/* Extra small devices (phones, 600px and down) */
@media only screen and (max-width: 600px) {
    .container {
        width: 95%;
    }
    
    .product-detail .product-actions .btn {
        padding: 12px;
        font-size: 1rem;
    }
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 600px) {
    .category-grid, .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {
    .category-grid, .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px) {
    .category-grid, .product-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}