/**
 * GTAW Furniture Catalog - Main Stylesheet
 * Dark theme with GTA World inspired colors
 * 
 * NOTE: Base styles (custom properties, toasts, modals, buttons, badges)
 * are now in base.css. Include base.css before this file.
 */

/* ============================================
   LAYOUT
   ============================================ */
   body {
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    gap: var(--spacing-md);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.site-logo:hover {
    color: var(--primary);
    transform: scale(1.02);
}

.site-logo .logo-icon {
    font-size: 1.5rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--primary);
    background: var(--primary-focus);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

[data-theme="dark"] .theme-toggle .icon-sun { display: inline; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: inline; }

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.user-info strong {
    color: var(--text-primary);
}

.btn-login {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-login:hover {
    background: var(--primary-hover);
    color: white;
    transform: translateY(-1px);
}

.btn-login:active {
    transform: translateY(0) scale(0.98);
}

.btn-logout {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
}

.btn-logout:hover {
    color: var(--error);
}

.btn-dashboard {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-dashboard:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-focus);
}

/* Lightbox User Action Buttons */
.lightbox-actions .btn-collection,
.lightbox-actions .btn-suggest {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    height: 40px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.lightbox-actions .btn-collection:hover,
.lightbox-actions .btn-suggest:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-focus);
}

/* ============================================
   SEARCH BAR
   ============================================ */
.search-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-container input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3rem;
    font-size: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-container input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-focus);
    outline: none;
}

.search-container input::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

/* Search loading spinner */
.search-container.searching .search-icon {
    opacity: 0;
}

.search-spinner {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    animation: spin 0.6s linear infinite;
}

.search-container.searching .search-spinner {
    opacity: 1;
}

.search-hint {
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.search-hint kbd {
    display: inline-block;
    padding: 0.125rem 0.375rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.75rem;
}


/* ============================================
   FILTERS
   ============================================ */
.filters-section {
    padding-bottom: var(--spacing-lg);
}

.filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.filter-group {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

/* Override Pico CSS label defaults */
.filter-group > label {
    all: unset;
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    display: inline-block;
    line-height: 36px;
}

/* Override Pico CSS select defaults */
.filter-group > select {
    all: unset;
    box-sizing: border-box;
    padding: 0 2rem 0 var(--spacing-md);
    background: var(--bg-elevated) url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23aaa' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e") no-repeat right 0.75rem center/12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
    cursor: pointer;
    min-width: 150px;
    height: 36px;
    line-height: 36px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.filter-group > select:focus {
    border-color: var(--primary);
    outline: none;
}

.filter-group > select:hover {
    border-color: var(--primary);
}

/* Favorites Only Button */
.btn-favorites-filter {
    display: inline-flex;
    align-items: center;
    align-self: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0 var(--spacing-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    user-select: none;
    height: 42px;
    color: var(--text-primary);
    font-weight: 500;
    white-space: nowrap;
    margin-bottom: 0 !important;
}

.btn-favorites-filter:hover {
    border-color: var(--error);
    color: var(--error);
}

.btn-favorites-filter[aria-pressed="true"],
.btn-favorites-filter.active {
    background: var(--error);
    border-color: var(--error);
    color: white;
}

/* ============================================
   FURNITURE GRID
   ============================================ */
.furniture-section {
    padding-bottom: var(--spacing-xl);
}

.furniture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    transition: opacity var(--transition-normal);
}

/* Loading state for grid */
.furniture-grid.loading {
    opacity: 0.5;
    pointer-events: none;
}

.furniture-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), 
                box-shadow var(--transition-normal),
                border-color var(--transition-normal);
    /* Animation on load */
    animation: cardFadeIn 0.4s ease forwards;
    opacity: 0;
}

/* Staggered card entrance animation */
.furniture-card:nth-child(1) { animation-delay: 0.02s; }
.furniture-card:nth-child(2) { animation-delay: 0.04s; }
.furniture-card:nth-child(3) { animation-delay: 0.06s; }
.furniture-card:nth-child(4) { animation-delay: 0.08s; }
.furniture-card:nth-child(5) { animation-delay: 0.10s; }
.furniture-card:nth-child(6) { animation-delay: 0.12s; }
.furniture-card:nth-child(7) { animation-delay: 0.14s; }
.furniture-card:nth-child(8) { animation-delay: 0.16s; }
.furniture-card:nth-child(9) { animation-delay: 0.18s; }
.furniture-card:nth-child(10) { animation-delay: 0.20s; }
.furniture-card:nth-child(11) { animation-delay: 0.22s; }
.furniture-card:nth-child(12) { animation-delay: 0.24s; }
.furniture-card:nth-child(n+13) { animation-delay: 0.26s; }

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.furniture-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-color-hover);
}

.furniture-card .card-image {
    position: relative;
    aspect-ratio: 4 / 3;
    background: var(--bg-elevated);
    overflow: hidden;
    cursor: zoom-in;
}

.furniture-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.furniture-card:hover .card-image img {
    transform: scale(1.05);
}

.furniture-card .card-image .placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 3rem;
    color: var(--text-muted);
}

.furniture-card .card-body {
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.furniture-card h3 {
    margin: 0 0 var(--spacing-xs);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
    line-height: 1.3;
}

.furniture-card .meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.furniture-card .meta .category {
    color: var(--text-muted);
}

.furniture-card .meta .separator {
    color: var(--text-muted);
    opacity: 0.5;
}

.furniture-card .meta .price {
    color: var(--success);
    font-weight: 500;
}

.furniture-card .tags {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    min-height: 1.25rem;
    flex: 1;
    overflow: hidden;
}

.furniture-card .tag {
    display: inline-block;
    padding: 2px 6px;
    background: var(--tag-color, var(--bg-elevated));
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 500;
    color: white;
    text-transform: lowercase;
    line-height: 1.2;
    white-space: nowrap;
    flex-shrink: 0;
}

.furniture-card .tag-more,
.furniture-card .category-more {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-secondary);
    line-height: 1.2;
    white-space: nowrap;
    flex-shrink: 0;
    cursor: help;
}

.furniture-card .actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: auto;
}

.btn-copy {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 6px var(--spacing-sm);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    transition: background var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
    height: 32px;
}

.btn-copy:hover {
    background: var(--primary-hover);
}

.btn-copy:active {
    transform: scale(0.95);
}

.btn-copy .btn-icon {
    font-size: 0.875rem;
    line-height: 1;
}

.btn-copy .btn-text {
    font-size: inherit;
}

.btn-favorite {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
    min-width: 32px;
    height: 32px;
}

.btn-favorite:hover {
    border-color: var(--primary);
    background: var(--primary-focus);
}

.btn-favorite:active {
    transform: scale(0.9);
}

.btn-favorite.active {
    color: #ef4444;
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--text-secondary);
    animation: fadeIn 0.4s ease;
    position: relative;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.empty-state::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--primary-focus) 0%, transparent 70%);
    opacity: 0.3;
    z-index: -1;
    border-radius: 50%;
}

.empty-state .icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-lg);
    display: block;
    animation: emptyFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(249, 115, 22, 0.3));
}

@keyframes emptyFloat {
    0%, 100% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

.empty-state h3 {
    margin: 0 0 var(--spacing-sm);
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.empty-state p {
    margin: 0 0 var(--spacing-lg);
    font-size: 0.9rem;
}

.empty-state .suggestion {
    display: inline-flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.empty-state .suggestion-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.empty-state .suggestion-btn:hover {
    border-color: var(--primary);
    background: var(--primary-focus);
}

/* ============================================
   SKELETON LOADING
   ============================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-elevated) 25%,
        var(--bg-card) 50%,
        var(--bg-elevated) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.skeleton-card .skeleton-image {
    aspect-ratio: 4 / 3;
    background: var(--bg-elevated);
}

.skeleton-card .skeleton-body {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

.skeleton-card .skeleton-title {
    height: 1rem;
    width: 80%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-card .skeleton-meta {
    height: 0.75rem;
    width: 60%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-card .skeleton-tags {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.skeleton-card .skeleton-tag {
    height: 1.25rem;
    width: 3rem;
    border-radius: var(--radius-full);
}

.skeleton-card .skeleton-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.skeleton-card .skeleton-btn {
    height: 32px;
    flex: 1;
}

.skeleton-card .skeleton-btn-small {
    height: 32px;
    width: 32px;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
    animation: fadeIn 0.3s ease 0.2s backwards;
}

.pagination button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.pagination button:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination button:active:not(:disabled) {
    transform: scale(0.95);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .page-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ============================================
   LOADING OVERLAY
   ============================================ */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.site-footer .container {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.site-footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--primary);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 768px) {
    .site-header .container {
        flex-wrap: wrap;
    }
    
    .site-logo {
        font-size: 1rem;
    }
    
    .site-logo .logo-text {
        display: none;
    }
    
    .search-container input {
        font-size: 0.875rem;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-group select {
        flex: 1;
    }
    
    .furniture-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    .furniture-card .card-body {
        padding: var(--spacing-sm);
    }
    
    .furniture-card h3 {
        font-size: 0.8rem;
    }
    
    .furniture-card .meta {
        font-size: 0.7rem;
    }
    
    .furniture-card .tag {
        font-size: 0.6rem;
        padding: 1px 4px;
    }
    
    .furniture-card .actions {
        flex-direction: row;
    }
    
    .furniture-card .btn-copy {
        font-size: 0.7rem;
        padding: 4px 6px;
        height: 28px;
    }
    
    .furniture-card .btn-favorite {
        min-width: 28px;
        height: 28px;
        font-size: 0.875rem;
    }
    
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
        bottom: var(--spacing-md);
    }
    
    .toast {
        max-width: none;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    /* Lightbox responsive */
    .lightbox-actions {
        width: 100%;
        max-width: 280px;
    }
    
    .lightbox-actions-row {
        width: 100%;
    }
    
    .lightbox-actions .btn-copy,
    .lightbox-actions .btn-favorite,
    .lightbox-actions .btn-edit,
    .lightbox-actions .btn-share,
    .lightbox-actions .btn-collection,
    .lightbox-actions .btn-suggest {
        flex: 1;
        min-width: 0;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .furniture-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .furniture-card .card-body {
        padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-sm);
    }
    
    .furniture-card h3 {
        font-size: 0.75rem;
    }
    
    .furniture-card .btn-copy .btn-text {
        display: none;
    }
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    padding: var(--spacing-md);
    background: var(--primary);
    color: white;
    z-index: 1001;
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   IMAGE LIGHTBOX
   ============================================ */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    padding: var(--spacing-lg);
    cursor: zoom-out;
    backdrop-filter: blur(4px);
}

.lightbox-overlay.active {
    display: flex;
    animation: lightboxFadeIn 0.2s ease;
}

@keyframes lightboxFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: default;
    animation: lightboxZoomIn 0.25s ease;
}

@keyframes lightboxZoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Image container with fixed dimensions */
.lightbox-image-container {
    position: relative;
    width: 100%;
    max-width: 90vw;
    max-height: 80vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    /* Lock dimensions to prevent layout shifts */
    contain: layout style paint;
    overflow: hidden;
}

@supports (aspect-ratio: 4 / 3) {
    .lightbox-image-container {
        height: auto;
        min-height: 0;
    }
}

/* Image adapts to fixed container */
.lightbox-image-container img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: block;
}

/* Info card container */
.lightbox-info-card {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 600px;
    max-width: 90vw;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    /* Prevent layout shifts */
    min-height: 200px;
}

.lightbox-info-card h3 {
    margin: 0 0 var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
    word-break: break-word;
}

.lightbox-info-card .meta {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

/* Divider */
.lightbox-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-md) 0;
    opacity: 0.5;
}

/* Tags section - conditional display */
.lightbox-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
    margin: var(--spacing-md) 0;
    min-height: 24px;
}

.lightbox-tags .tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.lightbox-tags .tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-focus);
}

.lightbox-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
}

.lightbox-actions-row {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.lightbox-actions .btn-copy {
    flex: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    height: 40px;
}

.lightbox-actions .btn-favorite {
    width: 40px;
    height: 40px;
    min-width: 40px;
    font-size: 1.25rem;
}

.lightbox-actions .btn-edit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    height: 40px;
}

.lightbox-actions .btn-edit:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-focus);
}

.lightbox-actions .btn-share {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    height: 40px;
}

.lightbox-actions .btn-share:hover {
    border-color: var(--info);
    color: var(--info);
    background: rgba(59, 130, 246, 0.1);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.lightbox-close {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    z-index: 1002;
}

.lightbox-close:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    z-index: 1002;
}

.lightbox-nav:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.lightbox-nav.prev {
    left: var(--spacing-lg);
}

.lightbox-nav.next {
    right: var(--spacing-lg);
}

.lightbox-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.lightbox-nav:disabled:hover {
    background: var(--bg-card);
    border-color: var(--border-color);
}

/* ============================================
   RESPONSIVE LIGHTBOX
   ============================================ */
@media (max-width: 768px) {
    .lightbox-close {
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: 40px;
        height: 40px;
    }
    
    .lightbox-nav {
        width: 36px;
        height: 36px;
    }
    
    .lightbox-nav.prev {
        left: var(--spacing-sm);
    }
    
    .lightbox-nav.next {
        right: var(--spacing-sm);
    }
    
    .lightbox-image-container {
        min-height: 300px;
        max-width: 95vw;
    }
    
    .lightbox-image-container img {
        max-width: 95vw;
        max-height: 70vh;
    }
    
    .lightbox-info-card {
        padding: var(--spacing-md);
        max-width: 100%;
    }
    
    .lightbox-info-card h3 {
        font-size: 1.125rem;
    }
    
    .lightbox-tags {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .lightbox-image-container {
        max-height: 70vh;
        /* Slightly different aspect ratio on mobile for better fit */
        aspect-ratio: 3 / 4;
    }
    
    .lightbox-content img {
        max-height: 100%;
    }
    
    .lightbox-info h3 {
        font-size: 1rem;
    }
}

/* ============================================
   GROUPED TAG FILTERS (Dropdown Style)
   ============================================ */
.tag-filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    align-items: flex-start;
}

/* Dropdown trigger - looks like Category/Sort selects */
.tag-group-dropdown {
    position: relative;
}

.tag-group-trigger {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    user-select: none;
    width: fit-content;
    min-width: 100px;
    transition: all var(--transition-fast);
}

.tag-group-trigger:hover {
    border-color: var(--primary);
}

.tag-group-dropdown.open .tag-group-trigger {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-focus);
}

.tag-group-trigger .group-color {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.tag-group-trigger .group-name {
    flex: 0 0 auto;
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tag-group-trigger .group-count {
    font-size: 0.7rem;
    color: white;
    background: var(--primary);
    padding: 1px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

.tag-group-trigger .group-arrow {
    font-size: 0.6rem;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.tag-group-dropdown.open .group-arrow {
    transform: rotate(180deg);
}

/* Dropdown panel */
.tag-group-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 200px;
    max-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: none;
    animation: dropdownFadeIn 0.15s ease;
}

@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.tag-group-dropdown.open .tag-group-panel {
    display: block;
}

.tag-group-panel-header {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tag-group-panel-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.tag-group-panel-clear {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px 6px;
}

.tag-group-panel-clear:hover {
    color: var(--error);
}

.tag-group-tags {
    display: flex;
    flex-direction: column;
    max-height: 250px;
    overflow-y: auto;
}

.tag-checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.tag-checkbox-item:hover {
    background: var(--bg-elevated);
}

.tag-checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--tag-color, var(--primary));
    cursor: pointer;
}

.tag-checkbox-item .tag-name {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.tag-checkbox-item .tag-color-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--tag-color, var(--text-muted));
}

/* Responsive tag dropdowns */
@media (max-width: 768px) {
    .tag-filters-container {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .tag-group-dropdown {
        width: 100%;
    }
    
    .tag-group-trigger {
        width: 100%;
    }
    
    .tag-group-panel {
        width: 100%;
        max-width: none;
    }
}

/* Active Tags Bar */
.active-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.active-tags-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.active-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.active-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 3px 8px;
    background: var(--tag-color, var(--primary));
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.active-tag .remove-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.65rem;
    line-height: 1;
    transition: background var(--transition-fast);
}

.active-tag .remove-tag:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Clear Filters Button */
.btn-clear-filters {
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 0 !important;
}

.btn-clear-filters:hover {
    background: var(--error);
    border-color: var(--error);
    color: white;
}

/* Responsive Grouped Tags */
@media (max-width: 768px) {
    .tag-filters-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .tag-group-filter {
        max-width: 100%;
    }
    
    .tag-group-tags {
        max-height: 150px;
    }
}