/* ================================================================
   COMBINATIONS.CSS v2.0 — Phối Cây
   ================================================================
   
   REUSE từ shared-styles.css (KHÔNG duplicate):
     Layout:   .main-layout .main-content .header .header-inner
     Grid:     .item-grid .item-card .item-card-image .item-card-body .item-card-badges
     Card:     .item-name .item-meta .item-icons .item-icon .item-badge-left .item-badge-right
     Toolbar:  .toolbar-row .toolbar-right .results-info .sort-select
     Filter:   .active-filters .filter-tag .filter-tag-label .filter-tag-value .filter-tag-remove .clear-filters-btn
     State:    .loading .spinner .empty-state .pagination .page-btn .toast
     Nav:      .global-nav-* (inject by shared-scripts.js)
   
   REUSE từ item-detail.css (chỉ trên combo-detail page):
     Section:  .description-section .description-title .description-text
     Info:     .info-compact .info-grid-compact .info-cell .cell-label .cell-value
     Badge:    .badge .badge-category .badge-native .badge-featured
     Tag:      .tag .tags-section .tags-row .tags-label .tags-list
     Related:  .related-section .related-card .related-image .related-content
   
   CHỈ THÊM MỚI những class không có tương đương:
   ================================================================ */

/* ============================================================
   1. COMBO HERO — page header (không có tương đương)
   ============================================================ */
.combo-hero {
    padding: 32px 24px 24px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.combo-hero h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
}

.combo-hero-sub {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* ============================================================
   2. CARD BADGES — score & difficulty trên .item-card-badges
      Khác .item-badge-left/right vì cần background màu động
   ============================================================ */
.combo-score {
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    backdrop-filter: blur(4px);
}

.combo-score.high { background: rgba(16, 185, 129, 0.9); }
.combo-score.mid  { background: rgba(245, 158, 11, 0.9); }
.combo-score.low  { background: rgba(100, 116, 139, 0.9); }

.combo-difficulty {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    backdrop-filter: blur(4px);
}

.combo-difficulty.easy   { background: rgba(74, 222, 128, 0.85); }
.combo-difficulty.medium { background: rgba(251, 191, 36, 0.85); }
.combo-difficulty.hard   { background: rgba(248, 113, 113, 0.85); }

/* Plant count — dùng trong .item-icons */
.combo-plant-count {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.combo-plant-count svg {
    width: 14px;
    height: 14px;
    color: var(--primary);
}

/* ============================================================
   3. COMPANION SCROLL — horizontal trên plant detail
      Không có tương đương (.related-grid là grid, không phải scroll)
   ============================================================ */
.companion-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 20px;
    margin-bottom: 24px;
}

.companion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.companion-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.companion-see-all {
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
    transition: color 0.2s;
}

.companion-see-all:hover { text-decoration: underline; }

.companion-scroll {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 6px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.companion-scroll::-webkit-scrollbar { height: 3px; }
.companion-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Card giống .related-card nhưng chiều ngang cố định */
.companion-card {
    flex: 0 0 140px;
    scroll-snap-align: start;
    background: var(--card-hover);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.companion-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Ảnh vuông — giống .related-image nhưng 1:1 */
.companion-card-img {
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--bg);
    position: relative;
}

.companion-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.companion-card-score {
    position: absolute;
    bottom: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
}

/* Body giống .related-content */
.companion-card-body { padding: 10px; }

.companion-card-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.companion-card-sci {
    font-size: 10px;
    color: var(--text-dim, #64748b);
    font-style: italic;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.companion-role {
    display: inline-block;
    padding: 1px 6px;
    background: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 600;
}

.companion-freq {
    font-size: 10px;
    color: var(--text-muted);
    margin-left: 4px;
}

/* ============================================================
   4. COMBO DETAIL — sections chỉ mới
      .description-section, .info-compact, .tag — dùng nguyên
   ============================================================ */

/* Layer Analysis (không có tương đương — mới) */
.layer-analysis {
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 20px;
    margin-bottom: 24px;
}

.layer-analysis-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 14px;
}

.layer-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 12px;
}

.layer-indicator {
    width: 26px;
    height: 26px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

.layer-indicator.filled { background: var(--primary); color: var(--bg); }
.layer-indicator.empty  { background: var(--card-hover); color: var(--text-muted); }

.layer-name { flex: 1; color: var(--text-muted); }
.layer-status { font-size: 11px; font-weight: 600; }
.layer-status.ok   { color: var(--primary); }
.layer-status.miss { color: var(--text-dim, #64748b); }

.layer-summary {
    margin-top: 10px;
    font-size: 12px;
    padding: 8px 12px;
    border-radius: 8px;
}

.layer-summary.complete   { background: rgba(16, 185, 129, 0.1); color: var(--primary); border: 1px solid rgba(16, 185, 129, 0.2); }
.layer-summary.incomplete { background: rgba(251, 191, 36, 0.1); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.2); }

/* Design Notes callout (không có tương đương — mới) */
.design-notes {
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.2);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 24px;
}

.design-notes-title {
    font-size: 12px;
    font-weight: 700;
    color: #fbbf24;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.design-notes-text {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-muted);
}

/* Action buttons (không có tương đương — mới) */
.combo-actions {
    display: flex;
    gap: 8px;
    padding: 16px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.combo-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    transition: all 0.2s;
}

.combo-action-btn:hover {
    background: var(--card-hover);
    color: var(--text);
    border-color: var(--primary);
}

.combo-action-btn.active {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.combo-action-btn svg { width: 16px; height: 16px; }

/* Plants table — theo .variants-table pattern từ item-detail.css */
.combo-plants-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.combo-plants-table thead { background: rgba(0, 0, 0, 0.2); }

.combo-plants-table th {
    padding: 10px 14px;
    text-align: left;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-dim, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.combo-plants-table td {
    padding: 12px 14px;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.combo-plants-table tbody tr:hover { background: rgba(16, 185, 129, 0.05); }
.combo-plants-table tbody tr:last-child td { border-bottom: none; }

.combo-plant-cell { display: flex; align-items: center; gap: 12px; }

.combo-plant-thumb {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg);
    flex-shrink: 0;
}

.combo-plant-name-link { font-weight: 600; color: var(--text); }
.combo-plant-name-link:hover { color: var(--primary); }
.combo-plant-sci { font-size: 11px; color: var(--text-dim, #64748b); font-style: italic; }

/* Stats row */
.combo-stats {
    display: flex;
    gap: 20px;
    font-size: 12px;
    color: var(--text-muted);
    padding: 12px 0;
}

.combo-stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.combo-stat-item svg { width: 14px; height: 14px; }

/* Breadcrumb (reuse link colors) */
.combo-breadcrumb {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.combo-breadcrumb a { color: var(--primary); }
.combo-breadcrumb a:hover { text-decoration: underline; }

/* ============================================================
   5. RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .combo-hero h1 { font-size: 18px; }
    .companion-card { flex: 0 0 120px; }
    .companion-card-body { padding: 8px; }
    .combo-actions { flex-wrap: wrap; }
    .combo-action-btn { flex: 1; justify-content: center; min-width: 80px; font-size: 11px; padding: 8px 10px; }
    .combo-plants-table th,
    .combo-plants-table td { padding: 8px 10px; font-size: 11px; }
    .combo-plant-thumb { width: 36px; height: 36px; }
}

@media (max-width: 480px) {
    .combo-hero { padding: 20px 12px 16px; }
    .combo-hero h1 { font-size: 16px; }
    .companion-card { flex: 0 0 110px; }
    .layer-bar { font-size: 11px; gap: 6px; }
    .layer-indicator { width: 22px; height: 22px; font-size: 10px; }
    .combo-action-btn { padding: 7px 8px; font-size: 10px; }
}