/* ============================================
   TecDoc Catalog — Shop Theme (yellow/black)
   ============================================ */

:root {
    --primary: #f59e0b;
    --primary-dark: #d97706;
    --primary-light: #fffbeb;
    --primary-rgb: 245,158,11;
    --text-dark: #1a1a1a;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
}

/* ── Catalog Card ── */
.catalog-card {
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* ── Header ── */
.catalog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}
.catalog-header h4 {
    margin: 0;
    font-weight: 700;
    font-size: 18px;
    color: var(--text-dark);
}
.catalog-header h4 small {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-muted);
}

/* ── Search Box ── */
.search-box {
    position: relative;
    width: 280px;
}
.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}
.search-box .filter-input {
    width: 100%;
    padding: 10px 15px 10px 38px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
    outline: none;
}
.search-box .filter-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

/* ── Tabs ── */
.catalog-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
}
.catalog-tabs .tab-item {
    flex: 1;
    text-align: center;
    padding: 14px 20px;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 3px solid transparent;
    transition: all 0.15s;
}
.catalog-tabs .tab-item:hover {
    color: var(--text-dark);
    background: #fff;
}
.catalog-tabs .tab-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: #fff;
}

/* ── Alphabet ── */
.alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
}
.alphabet-nav .letter-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    padding: 0 6px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 12px;
    text-decoration: none;
    color: var(--text-dark);
    background: #fff;
    border: 1px solid var(--border-color);
    transition: all 0.15s;
    cursor: pointer;
}
.alphabet-nav .letter-item:hover:not(.disabled) {
    border-color: var(--primary);
    color: var(--primary);
}
.alphabet-nav .letter-item.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #1a1a1a;
}
.alphabet-nav .letter-item.disabled {
    opacity: 0.3;
    cursor: default;
    pointer-events: none;
}

/* ── Brands List ── */
.brands-list {
    padding: 0;
}
.letter-group {
    border-bottom: 1px solid var(--border-color);
}
.letter-group:last-child {
    border-bottom: none;
}
.letter-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-light);
}
.letter-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--primary);
    color: #1a1a1a;
    font-weight: 700;
    font-size: 16px;
}
.letter-count {
    color: var(--text-muted);
    font-size: 13px;
}
.brands-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    padding: 14px 20px;
}
.brand-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 12px;
    border-radius: 8px;
    background: var(--bg-light);
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.15s;
    border: 1px solid transparent;
}
.brand-item:hover {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.15);
}
.brand-name {
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}

/* ── Brand Header ── */
.brand-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}
.brand-header .back-btn {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.15s;
}
.brand-header .back-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.brand-header .brand-logo {
    height: 36px;
    width: auto;
}
.brand-header h4 {
    margin: 0;
    font-weight: 700;
    font-size: 18px;
}
.brand-header .models-badge {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-muted);
}

/* ── Series/Models ── */
.series-item {
    border-bottom: 1px solid var(--border-color);
}
.series-item:last-child {
    border-bottom: none;
}
.series-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    cursor: pointer;
    transition: background 0.15s;
}
.series-header:hover {
    background: var(--bg-light);
}
.series-header.active {
    background: var(--primary-light);
}
.series-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-dark);
    flex: 1;
}
.series-years {
    font-size: 12px;
    color: var(--text-muted);
}
.series-count {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-light);
    padding: 2px 10px;
    border-radius: 12px;
}
.series-arrow {
    color: var(--text-muted);
    transition: transform 0.2s;
    font-size: 14px;
}
.series-header.active .series-arrow {
    transform: rotate(90deg);
    color: var(--primary);
}
.series-models {
    display: none;
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
}
.series-models.show {
    display: block;
}

/* ── Model Item ── */
.model-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 20px 12px 44px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-dark);
    transition: background 0.15s;
}
.model-item:hover {
    background: var(--primary-light);
}
.model-item:last-child {
    border-bottom: none;
}
.model-name {
    font-weight: 500;
    font-size: 13px;
    flex: 1;
    color: var(--text-dark);
}
.model-years {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 100px;
}
.model-engine {
    font-size: 12px;
    color: var(--text-muted);
    font-family: monospace;
    min-width: 80px;
}
.model-power {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 80px;
}
.model-arrow {
    color: #d1d5db;
    font-size: 12px;
}

/* ── Category Tree ── */
.category-tree {
    list-style: none;
    padding: 0;
    margin: 0;
}
.tree-node {
    list-style: none;
}
.tree-node-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    cursor: pointer;
    transition: background 0.1s;
    border-bottom: 1px solid #f3f4f6;
}
.tree-node-header:hover {
    background: var(--primary-light);
}
.tree-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--text-muted);
    transition: transform 0.15s;
}
.tree-toggle.empty {
    visibility: hidden;
}
.tree-toggle.open i {
    transform: rotate(90deg);
}
.tree-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-dark);
    flex: 1;
}
.tree-arrow {
    color: #d1d5db;
    font-size: 12px;
    margin-left: auto;
}
.tree-children {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
}
.tree-children.show {
    display: block;
}
.tree-level-1 .tree-node-header { padding-left: 20px; }
.tree-level-2 .tree-node-header { padding-left: 40px; }
.tree-level-3 .tree-node-header { padding-left: 60px; }
.tree-level-4 .tree-node-header { padding-left: 80px; }

/* ── Filters Row ── */
.filters-row {
    display: flex;
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
    flex-wrap: wrap;
    align-items: flex-end;
}
.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.filter-group label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filter-group select,
.filter-group .form-select {
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    background: #fff;
    min-width: 160px;
    outline: none;
}
.filter-group select:focus,
.filter-group .form-select:focus {
    border-color: var(--primary);
}
.filter-group .form-control {
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    outline: none;
}

/* ── Parts List (category page) ── */
.part-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 20px;
    border-bottom: 1px solid #f5f5f5;
    transition: background 0.1s;
}
.part-row:hover {
    background: var(--primary-light);
}
.part-row:last-child {
    border-bottom: none;
}
.part-image {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.part-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.part-image .no-image {
    font-size: 20px;
    color: #d1d5db;
}
.part-supplier {
    font-size: 11px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.part-article {
    font-size: 13px;
    font-weight: 600;
    font-family: monospace;
    color: var(--text-dark);
}
.part-description {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 1px;
}
.part-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}
.part-actions .btn {
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
    text-decoration: none;
}

/* ── Vehicle Info ── */
.vehicle-info-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
}
.vehicle-info-header .back-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}
.vehicle-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 6px;
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* ── Pagination ── */
.pagination-wrapper {
    padding: 16px 20px;
    display: flex;
    justify-content: center;
}
.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 4px;
}
.page-item .page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 8px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
    background: #fff;
}
.page-item .page-link:hover {
    background: var(--bg-light);
    border-color: var(--primary);
}
.page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
    color: #1a1a1a;
}
.page-item.disabled .page-link {
    color: #d1d5db;
    cursor: default;
}

/* ── No Results ── */
.no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.no-results i {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.3;
}
.no-results p {
    margin: 0;
    font-size: 15px;
}

/* ── Global Search ── */
.search-wrapper {
    display: flex;
    align-items: stretch;
    max-width: 700px;
    margin: 0 auto 24px;
    background: #fff;
    border-radius: 12px;
    border: 2px solid var(--border-color);
}
.search-input-container {
    flex: 1;
    position: relative;
    min-width: 0;
}
.search-wrapper:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}
.btn-catalog {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 16px;
    background: var(--primary);
    color: #1a1a1a;
    font-weight: 700;
    font-size: 13px;
    border: none;
    white-space: nowrap;
    text-decoration: none;
    border-radius: 10px 0 0 10px;
}
.btn-catalog:hover {
    background: var(--primary-dark);
}
.search-wrapper .search-input {
    width: 100%;
    border: none;
    outline: none;
    padding: 12px 16px;
    font-size: 14px;
    flex: 1;
    background: transparent;
}
.btn-history {
    display: flex;
    align-items: center;
    padding: 0 14px;
    background: none;
    border: none;
    border-left: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 0 10px 10px 0;
}
.btn-history:hover {
    background: var(--bg-light);
    color: var(--primary);
}

/* ── Supplier Filter ── */
.supplier-filter {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-light);
}
.supplier-filter-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ── Responsive ── */
@media (max-width: 1199px) {
    .brands-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 991px) {
    .catalog-header { flex-direction: column; gap: 12px; }
    .search-box { width: 100%; }
    .brands-grid { grid-template-columns: repeat(3, 1fr); }
    .filters-row { flex-direction: column; }
}
@media (max-width: 767px) {
    .catalog-tabs .tab-item { padding: 10px 8px; font-size: 11px; }
    .catalog-tabs .tab-item i { display: none; }
    .alphabet-nav { padding: 10px 14px; gap: 3px; }
    .alphabet-nav .letter-item { min-width: 26px; height: 26px; font-size: 11px; }
    .brands-grid { grid-template-columns: repeat(2, 1fr); }
    .model-item { flex-wrap: wrap; padding-left: 28px; }
    .model-years, .model-engine, .model-power { min-width: auto; }
}
@media (max-width: 480px) {
    .brands-grid { grid-template-columns: 1fr 1fr; gap: 6px; padding: 10px 14px; }
    .brand-header { flex-wrap: wrap; }
    .search-wrapper { flex-direction: column; }
    .btn-catalog { justify-content: center; padding: 10px; }
}