/* ═══════════════════════════════════════════════════════════════════════
   KATALOG PLUGIN — Frontend Styles
   Uniwersalny arkusz stylów BEM + Zmienne CSS do łatwego nadpisywania w motywach
   ═══════════════════════════════════════════════════════════════════════ */

:root {
    --katalog-primary: var(--primary-color, #2563eb);
    --katalog-primary-hover: var(--primary-hover, #1d4ed8);
    --katalog-primary-light: var(--primary-light, #dbeafe);
    --katalog-primary-light-text: #1e40af;
    --katalog-bg: var(--bg-card, #ffffff);
    --katalog-bg-alt: var(--bg-alt, #f8fafc);
    --katalog-border: var(--border-color, #e2e8f0);
    --katalog-text: var(--text-color, #1e293b);
    --katalog-muted: var(--text-muted, #64748b);
    --katalog-radius: var(--border-radius, 12px);
    --katalog-radius-sm: var(--border-radius-sm, 8px);
    --katalog-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --katalog-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --katalog-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --katalog-container-mw: 1200px;
    --katalog-font-family: inherit;
}

/* ── Structural Container Wrapper ────────────────────────────────────── */
.katalog-container {
    width: 100%;
    max-width: var(--katalog-container-mw);
    margin: 0 auto;
    padding: 32px 20px;
    box-sizing: border-box;
    font-family: var(--katalog-font-family);
    color: var(--katalog-text);
}

.katalog-header-hero {
    text-align: center;
    margin-bottom: 48px;
}

.katalog-hero-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin: 0 0 8px 0;
    line-height: 1.2;
    color: var(--katalog-text);
}

.katalog-hero-subtitle {
    font-size: 1.1rem;
    color: var(--katalog-muted);
    margin: 0 0 32px 0;
}

/* ── Search Box ─────────────────────────────────────────────────────── */
.katalog-search {
    position: relative;
    max-width: 520px;
    margin: 0 auto;
}

.katalog-search input {
    width: 100%;
    padding: 14px 20px 14px 50px;
    font-size: 1rem;
    border: 2px solid var(--katalog-border);
    border-radius: 60px;
    background: var(--katalog-bg);
    color: var(--katalog-text);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.katalog-search input:focus {
    border-color: var(--katalog-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.katalog-search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--katalog-muted);
    pointer-events: none;
}

.katalog-search-results {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--katalog-bg);
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius);
    box-shadow: var(--katalog-shadow-lg);
    z-index: 100;
    display: none;
    max-height: 420px;
    overflow-y: auto;
}

.katalog-search-results.is-open { display: block; }

.katalog-search-result {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--katalog-text);
    transition: background 0.15s;
    border-bottom: 1px solid var(--katalog-border);
}

.katalog-search-result:last-child { border-bottom: none; }
.katalog-search-result:hover { background: var(--katalog-bg-alt); }

.katalog-search-result img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: var(--katalog-radius-sm);
    flex-shrink: 0;
    background: var(--katalog-bg-alt);
}

.katalog-search-result-title { font-weight: 600; font-size: 0.95rem; }
.katalog-search-empty { padding: 20px 16px; color: var(--katalog-muted); text-align: center; font-size: 0.9rem; }

/* ── Category Cards (main page) ─────────────────────────────────────── */
.katalog-categories-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-bottom: 64px;
}

.katalog-categories-grid > * { flex: 0 1 calc((100% - 100px) / 6); }

.katalog-category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 12px;
    background: var(--katalog-bg);
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius);
    text-decoration: none;
    color: var(--katalog-text);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    text-align: center;
}

.katalog-category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--katalog-shadow);
    border-color: var(--katalog-primary);
}

.katalog-category-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--katalog-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--katalog-primary);
    flex-shrink: 0;
}

.katalog-category-card-icon svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.katalog-category-card-title {
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.3;
}

.katalog-category-card-count {
    font-size: 0.82rem;
    color: var(--katalog-muted);
}

/* ── Section Headers ─────────────────────────────────────────────────── */
.katalog-section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 28px;
}

.katalog-section-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--katalog-text);
}

.katalog-section-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--katalog-primary);
    text-decoration: none;
}

.katalog-section-link:hover { text-decoration: underline; }

/* ── Featured Devices ────────────────────────────────────────────────── */
.katalog-featured-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 64px;
}

.katalog-featured-grid > * { flex: 1 1 300px; }

/* ── Device Card ─────────────────────────────────────────────────────── */
.katalog-card {
    background: var(--katalog-bg);
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    text-decoration: none;
    color: var(--katalog-text);
    display: flex;
    flex-direction: column;
}

.katalog-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--katalog-shadow);
    border-color: var(--katalog-primary);
}

.katalog-card-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: var(--katalog-bg-alt);
}

.katalog-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }

.katalog-card-badge {
    display: inline-block;
    padding: 3px 10px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-radius: 20px;
    background: var(--katalog-primary-light);
    color: var(--katalog-primary-light-text);
    margin-bottom: 10px;
    align-self: flex-start;
}

.katalog-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.3;
}

.katalog-card-excerpt {
    font-size: 0.88rem;
    color: var(--katalog-muted);
    line-height: 1.5;
    margin-bottom: 14px;
    flex: 1;
}

.katalog-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--katalog-border);
}

.katalog-card-price {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--katalog-primary);
}

.katalog-card-price small {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--katalog-muted);
}

.katalog-card-cert {
    font-size: 0.78rem;
    color: var(--katalog-muted);
}

/* ── Category Page Layout ────────────────────────────────────────────── */
.katalog-layout {
    display: flex;
    gap: 36px;
    align-items: start;
}

.katalog-layout > .katalog-sidebar { flex: 0 0 280px; }
.katalog-layout > :not(.katalog-sidebar) { flex: 1 1 0; min-width: 0; }

/* ── Sidebar ─────────────────────────────────────────────────────────── */
.katalog-sidebar {
    position: sticky;
    top: 24px;
    background: var(--katalog-bg);
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius);
    padding: 24px;
}

.katalog-sidebar-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--katalog-muted);
    margin-bottom: 14px;
}

.katalog-sidebar + .katalog-sidebar { margin-top: 24px; }

/* Sidebar search */
.katalog-sidebar-search {
    position: relative;
}

.katalog-sidebar-search input {
    width: 100%;
    padding: 10px 14px 10px 38px;
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius-sm);
    font-size: 0.9rem;
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.katalog-sidebar-search input:focus { border-color: var(--katalog-primary); }

.katalog-sidebar-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--katalog-muted);
    font-size: 0.85rem;
    pointer-events: none;
}

/* Category tree */
.katalog-cat-tree {
    list-style: none;
    padding: 4px;
    margin: 0;
    max-height: 260px;
    overflow-y: auto;
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius-sm);
    background: transparent;
}

.katalog-producenci-list {
    list-style: none;
    padding: 4px;
    margin: 0;
    max-height: 220px;
    overflow-y: auto;
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius-sm);
    background: transparent;
}

.katalog-cat-tree li { margin-bottom: 1px; }

.katalog-cat-tree a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    border-radius: var(--katalog-radius-sm);
    text-decoration: none;
    color: var(--katalog-text);
    font-size: 0.88rem;
    line-height: 1.35;
    transition: background 0.15s;
}

/* Pogrubienie tylko głównych kategorii (elementy bezpośrednio w .katalog-cat-tree) */
.katalog-cat-tree > li > a {
    font-weight: 600;
}

.katalog-cat-tree a:hover { background: var(--katalog-bg-alt); }
.katalog-cat-tree a.is-active { background: var(--katalog-primary-light); color: var(--katalog-primary); font-weight: 700; }

.katalog-cat-tree .children {
    list-style: none;
    padding-left: 10px;
    margin-top: 1px;
}

.katalog-cat-tree .children a {
    font-weight: 400;
}

.katalog-cat-tree .children a::before {
    content: "— ";
    color: var(--katalog-muted);
    margin-right: 2px;
}

.katalog-cat-count {
    margin-left: auto;
    font-size: 0.78rem;
    color: var(--katalog-muted);
    background: var(--katalog-bg-alt);
    padding: 1px 8px;
    border-radius: 10px;
}

/* Price range */
.katalog-price-range {
    display: flex;
    align-items: center;
    gap: 10px;
}

.katalog-price-range input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius-sm);
    font-size: 0.88rem;
    outline: none;
    box-sizing: border-box;
}

.katalog-price-range input:focus { border-color: var(--katalog-primary); }
.katalog-price-sep { color: var(--katalog-muted); font-size: 0.85rem; }

/* Certificate checkboxes */
.katalog-cert-list { list-style: none; padding: 0; margin: 0; }

.katalog-cert-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--katalog-text);
    cursor: pointer;
}

.katalog-cert-list input[type="checkbox"] {
    accent-color: var(--katalog-primary);
    width: 16px;
    height: 16px;
}

/* ── Device Grid ─────────────────────────────────────────────────────── */
.katalog-devices-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.katalog-devices-count {
    font-size: 0.9rem;
    color: var(--katalog-muted);
}

.katalog-devices-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.katalog-devices-grid > * { flex: 1 1 280px; }

/* ── Pagination ──────────────────────────────────────────────────────── */
.katalog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 48px;
}

.katalog-pagination a,
.katalog-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius-sm);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--katalog-text);
    background: var(--katalog-bg);
    transition: all 0.15s;
}

.katalog-pagination a:hover { border-color: var(--katalog-primary); color: var(--katalog-primary); }
.katalog-pagination .active { background: var(--katalog-primary); color: #fff; border-color: var(--katalog-primary); }
.katalog-pagination .disabled { opacity: 0.4; pointer-events: none; }

/* ── Single Item ─────────────────────────────────────────────────────── */
.katalog-single-grid {
    display: flex;
    gap: 48px;
    align-items: start;
    margin-bottom: 64px;
}

.katalog-single-grid > * { flex: 1 1 0; min-width: 0; }

.katalog-single-gallery {
    position: sticky;
    top: 24px;
}

.katalog-single-main-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--katalog-radius);
    background: var(--katalog-bg-alt);
    margin-bottom: 12px;
}

.katalog-single-thumbs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.katalog-single-thumbs img {
    width: 72px;
    height: 54px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.15s;
}

.katalog-single-thumbs img:hover,
.katalog-single-thumbs img.is-active { border-color: var(--katalog-primary); }

.katalog-single-info { }
.katalog-single-title { font-size: 2rem; font-weight: 800; margin-bottom: 8px; line-height: 1.2; }
.katalog-single-subtitle { font-size: 1.05rem; color: var(--katalog-muted); margin-bottom: 16px; }

.katalog-single-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.katalog-single-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.78rem;
    font-weight: 700;
    border-radius: 20px;
}

.katalog-single-badge--cat { background: var(--katalog-primary-light); color: var(--katalog-primary-light-text); }
.katalog-single-badge--cert { background: #dcfce7; color: #166534; }
.katalog-single-badge--price { background: #fef3c7; color: #92400e; }

.katalog-single-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--katalog-primary);
    margin-bottom: 24px;
}

.katalog-single-price small { font-size: 0.85rem; font-weight: 500; color: var(--katalog-muted); }

.katalog-single-desc {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--katalog-text);
    margin-bottom: 24px;
}

.katalog-single-specs {
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius);
    overflow: hidden;
}

.katalog-single-specs dt {
    padding: 12px 16px;
    font-weight: 600;
    font-size: 0.88rem;
    background: var(--katalog-bg-alt);
    border-bottom: 1px solid var(--katalog-border);
}

.katalog-single-specs dd {
    padding: 12px 16px;
    font-size: 0.92rem;
    border-bottom: 1px solid var(--katalog-border);
}

.katalog-single-specs dd:last-child { border-bottom: none; }

/* ── Producer Info ──────────────────────────────────────────────────── */
.katalog-single-producer { margin-top: 32px; }
.katalog-single-producer-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; }
.katalog-single-producer-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    background: var(--katalog-bg-alt);
    border-radius: var(--katalog-radius);
    border: 1px solid var(--katalog-border);
}
.katalog-single-producer-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: var(--katalog-radius-sm);
    background: #fff;
    padding: 8px;
    border: 1px solid var(--katalog-border);
    flex-shrink: 0;
}
.katalog-single-producer-info { flex: 1; }
.katalog-single-producer-info strong { display: block; margin-bottom: 6px; font-size: 1rem; }
.katalog-single-producer-info p { margin: 0 0 8px; color: var(--katalog-muted); font-size: 0.9rem; line-height: 1.5; }
.katalog-single-producer-link {
    display: inline-block;
    color: var(--katalog-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
}
.katalog-single-producer-link:hover { text-decoration: underline; }

/* ── Related Items ───────────────────────────────────────────────────── */
.katalog-related { margin-top: 64px; }
.katalog-related-title { font-size: 1.4rem; font-weight: 800; margin-bottom: 24px; }

.katalog-related-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.katalog-related-grid > * { flex: 1 1 260px; }

/* ── Category Header & Mobile Filters ───────────────────────────────── */
.katalog-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 32px;
}

.katalog-mobile-filter-btn {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--katalog-bg);
    border: 1px solid var(--katalog-border);
    border-radius: var(--katalog-radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--katalog-text);
    cursor: pointer;
    box-shadow: var(--katalog-shadow-sm);
    transition: background 0.15s;
}

.katalog-mobile-filter-btn:hover {
    background: var(--katalog-bg-alt);
}

.katalog-mobile-sidebar-header {
    display: none;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .katalog-layout { flex-direction: column; }
    .katalog-layout > .katalog-sidebar { flex-basis: auto; width: 320px; max-width: 85vw; }
    
    .katalog-mobile-filter-btn { display: inline-flex; }

    /* Mobile Off-Canvas Drawer for Sidebar Filters */
    .katalog-sidebar {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        max-width: 85vw;
        height: 100vh;
        z-index: 9999;
        background: var(--katalog-bg);
        border: none;
        border-left: 1px solid var(--katalog-border);
        border-radius: 0;
        box-shadow: var(--katalog-shadow-lg);
        overflow-y: auto;
        padding: 20px 24px 40px;
        transition: right 0.3s ease;
    }

    .katalog-sidebar.is-open {
        right: 0;
    }

    .katalog-mobile-sidebar-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-bottom: 16px;
        margin-bottom: 20px;
        border-bottom: 1px solid var(--katalog-border);
    }

    .katalog-mobile-close-btn {
        background: none;
        border: none;
        font-size: 1.6rem;
        line-height: 1;
        cursor: pointer;
        color: var(--katalog-muted);
        padding: 4px;
    }

    .katalog-cat-tree,
    .katalog-producenci-list {
        max-height: 200px;
    }

    .katalog-single-grid { flex-direction: column; gap: 32px; }
    .katalog-single-gallery { position: static; }
}

@media (max-width: 600px) {
    .katalog-categories-grid { gap: 12px; }
    .katalog-categories-grid > * { flex-basis: calc(50% - 6px); }
    .katalog-featured-grid,
    .katalog-devices-grid,
    .katalog-related-grid { flex-direction: column; }
    .katalog-featured-grid > *,
    .katalog-devices-grid > *,
    .katalog-related-grid > * { flex-basis: auto; }
    .katalog-single-title { font-size: 1.5rem; }
}

@media (min-width: 601px) and (max-width: 1100px) {
    .katalog-categories-grid > * { flex-basis: calc((100% - 40px) / 3); }
}

@media (min-width: 901px) and (max-width: 1100px) {
    .katalog-categories-grid > * { flex-basis: calc((100% - 60px) / 4); }
}

@media (max-width: 420px) {
    .katalog-categories-grid > * { flex-basis: 100%; }
}