/* Tablet */
@media (max-width: 1200px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }
}

@media (max-width: 1024px) {
    .header-content {
        grid-template-columns: auto 1fr;
        gap: 20px;
    }

    .header-actions {
        grid-column: 1 / -1;
        justify-content: flex-end;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 42px;
    }

    .promo-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

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

    .section-title {
        font-size: 28px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .top-bar {
        display: none;
    }

    .header {
        padding: 12px 0;
    }

    .header-content {
        grid-template-columns: 1fr auto;
        gap: 12px;
    }

    .search-bar {
        display: none;
    }

    .action-label {
        display: none;
    }

    .action-btn {
        padding: 8px;
    }

    .logo-text h1 {
        font-size: 18px;
    }

    .logo-subtitle {
        font-size: 10px;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
    }

    .nav-list {
        gap: 0;
    }

    .nav-link {
        padding: 12px 14px;
        font-size: 13px;
    }

    .dropdown {
        display: none;
    }

    .hero {
        padding: 48px 0;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-description {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .stat-number {
        font-size: 24px;
    }

    .hero-card {
        padding: 24px;
        transform: none;
    }

    .grid-cell {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    .categories,
    .products,
    .testimonials,
    .newsletter {
        padding: 48px 0;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .category-card {
        padding: 20px 12px;
    }

    .category-icon {
        font-size: 32px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .product-image {
        padding: 20px 12px;
        min-height: 180px;
    }

    .book-cover {
        width: 110px;
        height: 160px;
        padding: 12px;
    }

    .book-title {
        font-size: 12px;
    }

    .product-info {
        padding: 14px;
    }

    .product-title {
        font-size: 13px;
        min-height: 36px;
    }

    .current-price {
        font-size: 18px;
    }

    .btn-add-cart {
        font-size: 12px;
        padding: 8px;
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .feature-icon {
        font-size: 32px;
    }

    .promo-banner {
        padding: 48px 0;
    }

    .promo-text h2 {
        font-size: 28px;
    }

    .timer-number {
        font-size: 24px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .categories-grid {
        grid-template-columns: 1fr 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .book-cover {
        width: 90px;
        height: 130px;
        padding: 8px;
    }

    .book-title {
        font-size: 10px;
    }

    .book-year {
        font-size: 8px;
    }

    .product-title {
        font-size: 12px;
        min-height: 32px;
    }

    .current-price {
        font-size: 16px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .timer {
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }

    .timer-block {
        padding: 12px 4px;
    }

    .timer-number {
        font-size: 20px;
    }

    .timer-label-small {
        font-size: 9px;
    }
}

/* Print */
@media print {
    .header,
    .main-nav,
    .cart-sidebar,
    .cart-overlay,
    .newsletter,
    .footer {
        display: none;
    }
}