/* ===== MOBILE BASE (< 480px) ===== */
@media (max-width: 479px) {
    :root {
        --container-padding: 16px;
    }

    .section {
        padding: 20px 0;
    }

    /* Catalog SEO description */
    .catalog-header {
        margin-bottom: 16px;
    }

    .catalog-header__title {
        font-size: 1.125rem;
        margin-bottom: 6px;
    }

    .catalog-header__desc {
        font-size: 0.875rem;
        line-height: 1.65;
    }

    .catalog-header__desc h2 {
        font-size: 1.0625rem;
        margin: 14px 0 6px;
    }

    .catalog-header__desc h3 {
        font-size: 0.9375rem;
        margin: 12px 0 5px;
    }

    .catalog-header__desc p {
        margin-bottom: 8px;
    }

    /* Product grid compact */
    .product-grid {
        gap: 10px;
    }

    .product-card__body {
        padding: 6px 8px 8px;
    }

    /* Breadcrumbs compact */
    .breadcrumbs {
        font-size: 0.75rem;
        margin-bottom: 10px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* FAQ section spacing */
    .faq-section {
        padding-top: 16px;
        padding-bottom: 16px;
    }

    .faq-item__question {
        padding: 12px 14px;
        font-size: 0.875rem;
    }

    .faq-item__answer {
        padding: 0 14px 12px 40px;
        font-size: 0.8125rem;
    }

    /* Blog */
    .blog-page,
    .blog-detail {
        padding-top: 16px;
        padding-bottom: 20px;
    }

    .blog-detail__title {
        font-size: 1.1875rem;
    }

    .blog-detail__content {
        font-size: 0.9375rem;
    }

    /* Cart */
    .cart-page {
        padding-top: 16px;
        padding-bottom: 20px;
    }

    /* Catalog toolbar */
    .catalog-toolbar {
        gap: 8px;
        margin-bottom: 12px;
    }

    .catalog-toolbar__filter-btn {
        padding: 8px 12px;
        font-size: 0.8125rem;
        white-space: nowrap;
    }

    /* Section title */
    .section__title {
        font-size: 1.0625rem;
        margin-bottom: 14px;
    }

    /* Banners */
    .banners {
        border-radius: var(--radius-sm);
    }

    /* Hits scroll */
    .hits-scroll .product-card {
        flex: 0 0 148px;
    }

    /* Categories grid */
    .categories-grid {
        gap: 10px;
    }

    .category-card__name {
        font-size: 0.75rem;
        padding: 8px 8px 2px;
    }
}

/* ===== MOBILE (480px – 767px) ===== */
@media (min-width: 480px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .hits-scroll .product-card {
        flex: 0 0 180px;
    }

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

@media (min-width: 768px) {
    :root {
        --header-height: 64px;
        --category-nav-height: 42px;
        --container-padding: 24px;
    }

    body {
        padding-top: calc(var(--header-height) + var(--category-nav-height));
    }

    .header__search {
        display: block;
    }

    .category-nav {
        display: block;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        z-index: 999;
    }

    .header__logo a {
        font-size: 1.125rem;
    }

    .header__logo img {
        height: 48px;
        max-height: calc(var(--header-height) - 16px);
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .hits-scroll .product-card {
        flex: 0 0 200px;
    }

    .section__title {
        font-size: 1.375rem;
    }

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

    .cart-item__img {
        width: 72px;
        height: 72px;
    }

    .product-detail {
        flex-direction: row;
        gap: 24px;
    }

    .product-gallery {
        flex: 0 0 50%;
        max-width: 480px;
    }

    .product-info {
        flex: 1;
        position: sticky;
        top: calc(var(--header-height) + var(--category-nav-height) + 20px);
        align-self: flex-start;
    }

    .product-gallery__thumb {
        flex: 0 0 64px;
        width: 64px;
        height: 64px;
    }

    .form-row {
        flex-direction: row;
    }

    .checkout-form {
        display: grid;
        grid-template-columns: 1fr 340px;
        gap: 24px;
    }

    .blog-detail__title {
        font-size: 1.625rem;
    }
}

@media (min-width: 1024px) {
    :root {
        --container-padding: 32px;
    }

    .header__phones {
        display: flex;
    }

    .header__burger {
        display: none;
    }

    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .product-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .catalog-sidebar {
        display: block;
    }

    .catalog-toolbar__filter-btn {
        display: none;
    }

    .hits-scroll .product-card {
        flex: 0 0 220px;
    }

    .content-cards {
        grid-template-columns: repeat(4, 1fr);
    }

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

    .product-info__title {
        font-size: 1.375rem;
    }

    .product-info__price {
        font-size: 1.75rem;
    }

    .product-gallery__thumb {
        flex: 0 0 72px;
        width: 72px;
        height: 72px;
    }

    .blog-detail {
        max-width: 1100px;
        margin: 0 auto;
    }

    .cart-page {
        display: grid;
        grid-template-columns: 1fr 340px;
        gap: 24px;
    }

    .cart-page__title {
        grid-column: 1 / -1;
    }
}

@media (min-width: 1280px) {
    .categories-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .product-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ===== MOBILE GLOBAL (max-width: 767px) ===== */
@media (max-width: 767px) {
    /* Catalog SEO description mobile */
    .catalog-header__desc {
        font-size: 0.875rem;
        line-height: 1.7;
        color: var(--color-text-light);
    }

    .catalog-header__desc h2 {
        font-size: 1.0625rem;
        line-height: 1.35;
        margin: 16px 0 8px;
    }

    .catalog-header__desc h3 {
        font-size: 0.9375rem;
        line-height: 1.35;
        margin: 12px 0 6px;
    }

    .catalog-header__desc ul,
    .catalog-header__desc ol {
        padding-left: 16px;
    }

    /* Promo banner — readable on mobile */
    .promo-banner {
        font-size: 0.75rem;
        padding: 8px var(--container-padding);
        line-height: 1.4;
    }

    /* Section heading */
    .section__title {
        font-size: 1rem;
        margin-bottom: 14px;
    }

    /* Blog detail */
    .blog-detail__content {
        font-size: 0.9375rem;
        line-height: 1.75;
    }

    .blog-detail__content h2 {
        font-size: 1.0625rem;
    }

    .blog-detail__content h3 {
        font-size: 0.9375rem;
    }

    /* Product page mobile */
    .product-page {
        padding-top: 12px;
        padding-bottom: 24px;
    }

    /* Modal full-width on very small screens */
    .modal__dialog {
        width: 94%;
        padding: 20px 16px;
    }

    /* Catalog toolbar compact */
    .catalog-toolbar__sort select {
        font-size: 0.8125rem;
    }

    /* Pagination compact */
    .catalog-pagination a,
    .catalog-pagination span {
        min-width: 32px;
        height: 32px;
        font-size: 0.8125rem;
        padding: 4px 8px;
    }

    /* Cart item image */
    .cart-item__img {
        width: 60px;
        height: 60px;
    }

    /* Breadcrumbs */
    .breadcrumbs {
        font-size: 0.75rem;
        margin-bottom: 10px;
    }

    /* Hits scroll gap */
    .hits-scroll {
        gap: 10px;
        padding-bottom: 6px;
    }

    /* Category card description hide on small */
    .category-card__desc {
        display: none;
    }

    /* Filter panel inside mobile drawer */
    .mobile-filters__body .filter-panel {
        box-shadow: none;
        padding: 0;
    }

    /* FAQ answer indent smaller */
    .faq-item__answer {
        padding-left: 38px;
    }
}