/**
 * Explore Mode Styles
 * Styles for browsing published collections, subscriptions, and publishing
 */

/* ============================================
 * Explore Layout with Sidebar
 * ============================================ */

.explore-layout {
    display: flex;
    height: 100%;
    width: 100%;
}

.explore-sidebar {
    width: 0;
    flex-shrink: 0;
    background: var(--color-paper-cool);
    border-right: none;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition: width var(--transition-normal), border-color var(--transition-normal);
    overflow-x: hidden;
}

.explore-layout.sidebar-open .explore-sidebar {
    width: 260px;
    border-right: var(--border-width) solid var(--border-color);
}

.explore-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* ============================================
 * Taxonomy Sidebar
 * ============================================ */

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: var(--border-width) solid var(--border-color);
}

.sidebar-header h3 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.sidebar-header h3 i {
    width: 16px;
    height: 16px;
    color: var(--color-ink-lighter);
}

.sidebar-toggle-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-toggle-btn:hover {
    background: var(--color-paper);
    color: var(--color-ink);
}

.sidebar-toggle-btn.active {
    background: var(--color-ink);
    color: var(--color-paper);
    border-color: var(--color-ink);
}

.sidebar-toggle-btn i {
    width: 16px;
    height: 16px;
}

.clear-filters-btn {
    padding: var(--space-1) var(--space-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--color-error);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.taxonomy-filters {
    flex: 1;
    padding: var(--space-2);
    overflow-y: auto;
}

.taxonomy-domains {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.taxonomy-domain {
    display: flex;
    flex-direction: column;
}

.domain-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.domain-btn:hover {
    background: var(--color-paper);
}

.domain-btn.active {
    background: var(--color-paper);
    box-shadow: var(--shadow-sm);
}

.domain-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.domain-icon i {
    width: 20px;
    height: 20px;
}

.domain-name {
    flex: 1;
}

.domain-chevron {
    width: 14px;
    height: 14px;
    color: var(--color-ink-lighter);
}

.taxonomy-categories {
    margin-left: var(--space-4);
    padding-left: var(--space-3);
    border-left: var(--border-width) solid var(--border-color);
    margin-top: var(--space-1);
}

.taxonomy-category {
    display: flex;
    flex-direction: column;
}

.category-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.category-btn:hover {
    background: var(--color-paper);
    color: var(--color-ink);
}

.category-btn.active {
    background: var(--color-target-bg);
    color: var(--color-target);
}

.category-name {
    flex: 1;
}

.category-chevron {
    width: 12px;
    height: 12px;
    color: var(--color-ink-lighter);
}

.taxonomy-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-left: var(--space-3);
    padding: var(--space-2);
}

.tag-btn {
    padding: var(--space-1) var(--space-2);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tag-btn:hover {
    border-color: var(--color-ink-lighter);
    color: var(--color-ink);
}

.tag-btn.active {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-paper);
}

/* ============================================
 * Active Filters Chips
 * ============================================ */

.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    margin-bottom: var(--space-2);
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    cursor: default;
}

.filter-chip .chip-remove {
    width: 12px;
    height: 12px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.filter-chip .chip-remove:hover {
    opacity: 1;
}

.filter-chip.domain-chip {
    background: var(--color-ink);
    color: var(--color-paper);
}

.filter-chip.category-chip {
    background: var(--color-target-bg);
    border: var(--border-width) solid var(--color-target);
    color: var(--color-target);
}

.filter-chip.tag-chip {
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    color: var(--color-ink-light);
}

/* ============================================
 * Collection Taxonomy Chips
 * ============================================ */

.collection-taxonomy {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: var(--space-3);
}

.taxonomy-chip {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
}

.taxonomy-chip.domain-chip {
    background: var(--color-ink);
    color: var(--color-paper);
}

.taxonomy-chip.category-chip {
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    color: var(--color-ink-light);
}

.taxonomy-chip.more-chip {
    background: transparent;
    color: var(--color-ink-lighter);
    font-size: var(--text-xs);
}

/* ============================================
 * Explore Container (main content area)
 * ============================================ */

.explore-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    background: var(--color-paper);
}

.explore-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: var(--border-width) solid var(--border-color);
    background: var(--color-paper);
    flex-shrink: 0;
}

.explore-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.explore-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.explore-title i {
    width: 24px;
    height: 24px;
    color: var(--color-target);
}

.explore-search-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex: 1;
    max-width: 600px;
    justify-content: flex-end;
}

/* ============================================
 * Search
 * ============================================ */

.explore-search {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.explore-search .search-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-ink-lighter);
    pointer-events: none;
}

.explore-search .search-input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    padding-left: calc(var(--space-3) + 24px);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-ink);
    transition: all var(--transition-fast);
}

.explore-search .search-input:focus {
    outline: none;
    border-color: var(--color-target);
    background: var(--color-paper);
}

.explore-search .search-input::placeholder {
    color: var(--color-ink-lighter);
}

/* ============================================
 * Filters
 * ============================================ */

.explore-filters {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.filter-tabs {
    display: flex;
    gap: var(--space-1);
    background: var(--color-paper-cool);
    border-radius: var(--radius-md);
    padding: var(--space-1);
}

.filter-tab {
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    color: var(--color-ink);
    background: var(--color-paper);
}

.filter-tab.active {
    background: var(--color-paper);
    color: var(--color-ink);
    box-shadow: var(--shadow-sm);
}

.sort-select select {
    padding: var(--space-2) var(--space-3);
    padding-right: var(--space-8);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-ink);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-2) center;
}

.sort-select select:focus {
    outline: none;
    border-color: var(--color-target);
}

/* ============================================
 * Content Area
 * ============================================ */

.explore-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-5);
}

.explore-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    color: var(--color-ink-lighter);
}

.explore-loading i {
    width: 32px;
    height: 32px;
}

.explore-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    text-align: center;
}

.explore-empty i {
    width: 48px;
    height: 48px;
    color: var(--color-ink-lighter);
    opacity: 0.5;
}

.explore-empty h3 {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.explore-empty p {
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
    margin: 0;
}

/* ============================================
 * Collection Grid
 * ============================================ */

.explore-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-4);
}

/* ============================================
 * Collection Card
 * ============================================ */

.explore-card {
    display: flex;
    flex-direction: column;
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.explore-card:hover {
    border-color: var(--color-ink-lighter);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.explore-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--color-paper-cool);
    border-bottom: var(--border-width) solid var(--border-color);
}

.publisher-info {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.publisher-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.publisher-avatar-placeholder {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-paper);
    display: flex;
    align-items: center;
    justify-content: center;
}

.publisher-avatar-placeholder i {
    width: 14px;
    height: 14px;
    color: var(--color-ink-lighter);
}

.publisher-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
}

.subscribed-badge {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: var(--color-target-bg);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--color-target);
}

.subscribed-badge i {
    width: 12px;
    height: 12px;
}

.subscribed-badge.has-update {
    background: var(--color-cleanup-bg);
    color: var(--color-cleanup);
}

.explore-card-body {
    flex: 1;
    padding: var(--space-4);
}

.collection-name {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-2);
    line-height: var(--leading-tight);
}

.collection-description {
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    margin: 0;
    line-height: var(--leading-relaxed);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.explore-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-top: var(--border-width) solid var(--border-color);
    background: var(--color-paper-cool);
}

.collection-stats {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.collection-stats .stat {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
}

.collection-stats .stat i {
    width: 12px;
    height: 12px;
}

.subscribe-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: var(--color-ink);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-paper);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.subscribe-btn i {
    width: 14px;
    height: 14px;
}

.subscribe-btn:hover {
    background: var(--color-ink-light);
}

.subscribe-btn.subscribed {
    background: var(--color-paper);
    color: var(--color-ink);
    border: var(--border-width) solid var(--border-color);
}

.subscribe-btn.subscribed:hover {
    background: var(--color-paper-cool);
    border-color: var(--color-ink-lighter);
}

/* ============================================
 * Publish Button (Collection Header)
 * ============================================ */

.publish-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.publish-btn i {
    width: 16px;
    height: 16px;
}

.publish-btn:hover {
    background: var(--color-paper-cool);
    border-color: var(--color-target);
    color: var(--color-target);
}

.publish-btn.published {
    background: var(--color-operation-bg);
    border-color: var(--color-operation);
    color: var(--color-operation);
}

.publish-btn.has-changes {
    background: var(--color-cleanup-bg);
    border-color: var(--color-cleanup);
    color: var(--color-cleanup);
}

/* ============================================
 * Subscriptions View (Library Tab)
 * ============================================ */

.subscriptions-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.subscription-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.subscription-item:hover {
    border-color: var(--color-ink-lighter);
    box-shadow: var(--shadow-sm);
}

.subscription-item.has-update {
    border-color: var(--color-cleanup);
    background: var(--color-cleanup-bg);
}

.subscription-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-paper-cool);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.subscription-icon i {
    width: 20px;
    height: 20px;
    color: var(--color-target);
}

.subscription-info {
    flex: 1;
    min-width: 0;
}

.subscription-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin-bottom: var(--space-1);
}

.subscription-meta {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
}

.subscription-badge {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    flex-shrink: 0;
}

.subscription-badge.update-available {
    background: var(--color-cleanup-bg);
    color: var(--color-cleanup);
}

.subscription-badge.up-to-date {
    background: var(--color-paper-cool);
    color: var(--color-ink-lighter);
}

.subscription-badge i {
    width: 12px;
    height: 12px;
}

/* ============================================
 * Update Indicator (Badge)
 * ============================================ */

.update-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 var(--space-1);
    background: var(--color-cleanup);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    color: white;
}

/* ============================================
 * Spin Animation
 * ============================================ */

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 2s linear infinite;
}

/* ============================================
 * Mobile Adjustments
 * ============================================ */

@media (max-width: 768px) {
    /* Header adjustments */
    .explore-header {
        padding: var(--space-3) var(--space-4);
    }
    
    .explore-title {
        font-size: var(--text-lg);
    }
    
    .explore-title i {
        width: 20px;
        height: 20px;
    }
    
    .explore-content {
        padding: var(--space-4);
    }
    
    /* Grid adjustments */
    .explore-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    /* Card improvements */
    .explore-card {
        border-radius: var(--radius-md);
    }
    
    .explore-card-header,
    .explore-card-footer {
        padding: var(--space-3);
    }
    
    .explore-card-body {
        padding: var(--space-3);
    }
    
    .collection-name {
        font-size: var(--text-base);
    }
    
    .collection-description {
        font-size: var(--text-sm);
        -webkit-line-clamp: 3;
    }
}

@media (max-width: 640px) {
    /* Further mobile refinements */
    .explore-header {
        padding: var(--space-3);
    }
    
    .explore-title-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-3);
    }
    
    .explore-search-row {
        max-width: none;
    }
    
    .explore-search {
        max-width: none;
    }
    
    .explore-filters {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
    }
    
    .filter-tabs {
        justify-content: center;
        width: 100%;
    }
    
    .filter-tab {
        flex: 1;
        justify-content: center;
        min-width: 0;
    }
    
    .sort-select {
        width: 100%;
    }
    
    .sort-select select {
        width: 100%;
    }
    
    .explore-content {
        padding: var(--space-3);
    }
    
    .explore-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    /* Improved card mobile layout */
    .explore-card-header {
        flex-wrap: wrap;
    }
    
    .publisher-info {
        flex: 1;
        min-width: 0;
    }
    
    .publisher-name {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .explore-card-footer {
        flex-direction: column;
        gap: var(--space-2);
        align-items: stretch;
    }
    
    .collection-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .collection-stats .stat {
        font-size: var(--text-xs);
    }
    
    .subscribe-btn {
        width: 100%;
        justify-content: center;
        padding: var(--space-3);
    }
    
    /* Better taxonomy chips on mobile */
    .collection-taxonomy {
        gap: var(--space-1);
    }
    
    .taxonomy-chip {
        font-size: var(--text-xs);
        padding: 2px var(--space-1);
    }
    
    /* Active filters scrollable */
    .active-filters {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--space-2);
        margin-left: calc(var(--space-3) * -1);
        margin-right: calc(var(--space-3) * -1);
        padding-left: var(--space-3);
        padding-right: var(--space-3);
    }
    
    .filter-chip {
        flex-shrink: 0;
    }
    
    /* Explore empty/loading states */
    .explore-empty,
    .explore-loading {
        padding: var(--space-8);
    }
    
    .explore-empty i,
    .explore-loading i {
        width: 40px;
        height: 40px;
    }
    
    .explore-empty h3 {
        font-size: var(--text-base);
    }
    
    /* Publish button */
    .publish-btn {
        font-size: var(--text-sm);
        padding: var(--space-2);
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .explore-header {
        padding: var(--space-2);
    }
    
    .explore-title {
        font-size: var(--text-base);
    }
    
    .explore-content {
        padding: var(--space-2);
    }
    
    .explore-search .search-input {
        font-size: var(--text-sm);
    }
    
    .filter-tabs {
        gap: 2px;
        padding: 2px;
    }
    
    .filter-tab {
        padding: var(--space-1) var(--space-2);
        font-size: var(--text-xs);
    }
    
    .explore-card {
        border-radius: var(--radius-sm);
    }
    
    .collection-name {
        font-size: var(--text-sm);
    }
    
    .collection-description {
        font-size: var(--text-xs);
    }
}

/* ============================================
 * Explore Mode Container
 * ============================================ */

.explore-mode-container {
    height: 100%;
    width: 100%;
}

.explore-main-view {
    height: 100%;
}

.think-tank-view {
    height: 100%;
    overflow-y: auto;
}

/* ============================================
 * Filter Tabs with Icons
 * ============================================ */

.filter-tab {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-tab i {
    width: 16px;
    height: 16px;
}

/* ============================================
 * Think Tank Card
 * ============================================ */

.think-tank-card {
    display: flex;
    flex-direction: column;
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.think-tank-card:hover {
    border-color: var(--color-ink-lighter);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.think-tank-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
    background: var(--color-paper-cool);
    border-bottom: var(--border-width) solid var(--border-color);
}

.think-tank-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
}

.think-tank-avatar-placeholder {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-paper);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--border-width) solid var(--border-color);
}

.think-tank-avatar-placeholder i {
    width: 28px;
    height: 28px;
    color: var(--color-ink-lighter);
}

.think-tank-card-body {
    flex: 1;
    padding: var(--space-4);
    text-align: center;
}

.think-tank-name {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-1);
}

.think-tank-slug {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-target);
    margin-bottom: var(--space-2);
}

.think-tank-description {
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    margin: 0;
    line-height: var(--leading-relaxed);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.think-tank-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-top: var(--border-width) solid var(--border-color);
    background: var(--color-paper-cool);
}

.think-tank-stats {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.think-tank-stats .stat {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
}

.think-tank-stats .stat i {
    width: 12px;
    height: 12px;
}

.view-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.view-btn i {
    width: 14px;
    height: 14px;
}

.view-btn:hover {
    background: var(--color-paper-cool);
    border-color: var(--color-ink-lighter);
}

/* ============================================
 * Think Tank Page
 * ============================================ */

.think-tank-page {
    height: 100%;
    background: var(--color-paper);
}

.think-tank-page-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-5);
}

.think-tank-loading,
.think-tank-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    text-align: center;
}

.think-tank-loading i {
    width: 32px;
    height: 32px;
    color: var(--color-ink-lighter);
}

.think-tank-error i {
    width: 48px;
    height: 48px;
    color: var(--color-error);
}

.think-tank-nav {
    margin-bottom: var(--space-5);
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-btn i {
    width: 16px;
    height: 16px;
}

.back-btn:hover {
    background: var(--color-paper-cool);
    color: var(--color-ink);
}

.think-tank-hero {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-6);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
}

.think-tank-avatar-large {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--color-paper);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
    overflow: hidden;
}

.think-tank-avatar-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.think-tank-avatar-large i {
    width: 40px;
    height: 40px;
    color: var(--color-ink-lighter);
}

.think-tank-info {
    flex: 1;
}

.think-tank-name-large {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-1);
}

.think-tank-slug-large {
    display: block;
    font-size: var(--text-base);
    color: var(--color-target);
    margin-bottom: var(--space-3);
}

.think-tank-description-large {
    font-size: var(--text-base);
    color: var(--color-ink-light);
    margin: 0 0 var(--space-4);
    line-height: var(--leading-relaxed);
}

.think-tank-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-ink-light);
}

.stat-item i {
    width: 16px;
    height: 16px;
}

.stat-item strong {
    color: var(--color-ink);
}

.stat-item.public-badge {
    color: var(--color-operation);
}

.stat-item.private-badge {
    color: var(--color-ink-lighter);
}

.think-tank-actions {
    display: flex;
    gap: var(--space-2);
}

.follow-btn,
.following-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.follow-btn i,
.following-btn i {
    width: 16px;
    height: 16px;
}

.follow-btn {
    background: var(--color-ink);
    border: var(--border-width) solid var(--color-ink);
    color: var(--color-paper);
}

.follow-btn:hover:not(:disabled) {
    background: var(--color-ink-light);
    border-color: var(--color-ink-light);
}

.follow-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.following-btn {
    background: var(--color-paper);
    border: var(--border-width) solid var(--color-operation);
    color: var(--color-operation);
}

.think-tank-section {
    margin-bottom: var(--space-6);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-4);
}

.section-title i {
    width: 20px;
    height: 20px;
    color: var(--color-ink-light);
}

.empty-collections {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-8);
    background: var(--color-paper-cool);
    border-radius: var(--radius-lg);
    text-align: center;
}

.empty-collections i {
    width: 32px;
    height: 32px;
    color: var(--color-ink-lighter);
}

.empty-collections p {
    color: var(--color-ink-lighter);
    margin: 0;
}

.think-tank-collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

/* ============================================
 * Subscriptions View
 * ============================================ */

.subscriptions-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.subscriptions-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: var(--border-width) solid var(--border-color);
    background: var(--color-paper);
}

.subscriptions-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.subscriptions-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.subscriptions-title i {
    width: 20px;
    height: 20px;
    color: var(--color-target);
}

.subscriptions-actions .btn-secondary {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.subscriptions-actions .btn-secondary i {
    width: 16px;
    height: 16px;
}

.subscriptions-actions .btn-secondary:hover {
    background: var(--color-paper-cool);
}

.subscriptions-filters {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.subscriptions-search {
    position: relative;
    flex: 1;
    max-width: 300px;
}

.subscriptions-search .search-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--color-ink-lighter);
    pointer-events: none;
}

.subscriptions-search .search-input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    padding-left: calc(var(--space-3) + 22px);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-ink);
}

.subscriptions-search .search-input:focus {
    outline: none;
    border-color: var(--color-target);
    background: var(--color-paper);
}

.subscriptions-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-5);
}

.subscriptions-loading,
.subscriptions-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    text-align: center;
}

.subscriptions-loading i,
.subscriptions-empty i {
    width: 48px;
    height: 48px;
    color: var(--color-ink-lighter);
    opacity: 0.5;
}

.subscriptions-empty h3 {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.subscriptions-empty p {
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
    margin: 0;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-ink);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-paper);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--color-ink-light);
}

.btn-primary i {
    width: 16px;
    height: 16px;
}

.updates-banner {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--color-cleanup-bg);
    border: var(--border-width) solid var(--color-cleanup);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
}

.updates-banner i {
    width: 20px;
    height: 20px;
    color: var(--color-cleanup);
}

.updates-banner span {
    flex: 1;
    font-size: var(--text-sm);
    color: var(--color-ink);
}

.view-updates-btn {
    padding: var(--space-2) var(--space-3);
    background: var(--color-cleanup);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.view-updates-btn:hover {
    opacity: 0.9;
}

.subscription-item .subscription-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.subscription-badge.manual-mode {
    background: var(--color-paper-cool);
    color: var(--color-ink-lighter);
}

.subscription-manage-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--color-ink-lighter);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.subscription-manage-btn i {
    width: 16px;
    height: 16px;
}

.subscription-manage-btn:hover {
    background: var(--color-paper-cool);
    color: var(--color-ink);
}

/* ============================================
 * Think Tank Page Mobile
 * ============================================ */

@media (max-width: 900px) {
    .sidebar-toggle-btn {
        display: flex;
    }

    .explore-sidebar {
        position: fixed;
        left: -300px;
        top: 0;
        bottom: 0;
        z-index: 1000;
        width: 280px;
        background: var(--color-paper);
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
    }
    
    .explore-layout.sidebar-open .explore-sidebar {
        left: 0;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .explore-layout.sidebar-open .sidebar-overlay {
        display: block;
    }
    
    .explore-layout {
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    .think-tank-hero {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .think-tank-stats-row {
        justify-content: center;
    }
    
    .think-tank-actions {
        justify-content: center;
    }
    
    .think-tank-collections-grid {
        grid-template-columns: 1fr;
    }
    
    .subscriptions-filters {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .subscriptions-search {
        max-width: none;
    }
    
    /* Active filters become scrollable on mobile */
    .active-filters {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--space-2);
    }
    
    .filter-chip {
        flex-shrink: 0;
    }
}

/* ============================================
 * Collection Page
 * ============================================ */

.collection-page {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    background: var(--color-paper);
}

.collection-page-header {
    padding: var(--space-4) var(--space-5);
    /* border-bottom: var(--border-width) solid var(--border-color); */
    background: var(--color-paper);
    flex-shrink: 0;
}

.collection-page-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-5);
}

.collection-page-loading,
.collection-page-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    text-align: center;
}

.collection-page-loading i {
    width: 32px;
    height: 32px;
    color: var(--color-ink-lighter);
}

.collection-page-empty i {
    width: 48px;
    height: 48px;
    color: var(--color-ink-lighter);
    opacity: 0.5;
}

/* Collection View (same as collection page view container) */
.collection-view {
    height: 100%;
    overflow-y: auto;
}

/* ============================================
 * Collection Info Section
 * ============================================ */

.collection-info-section {
    max-width: 900px;
    margin: 0 auto var(--space-6);
    padding: var(--space-5);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
}

.collection-publisher {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.publisher-avatar-lg {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.publisher-avatar-lg-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-paper);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--border-width) solid var(--border-color);
}

.publisher-avatar-lg-placeholder i {
    width: 24px;
    height: 24px;
    color: var(--color-ink-lighter);
}

.publisher-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.publisher-label {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
}

.publisher-name-lg {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
}

.collection-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-3);
    line-height: var(--leading-tight);
}

.collection-description-lg {
    font-size: var(--text-base);
    color: var(--color-ink-light);
    margin: 0 0 var(--space-4);
    line-height: var(--leading-relaxed);
}

.collection-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.collection-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-ink-light);
}

.stat-badge i {
    width: 14px;
    height: 14px;
}

.stat-badge.visibility-badge {
    font-weight: var(--weight-medium);
}

.stat-badge.visibility-badge.open {
    background: var(--color-target-bg);
    border-color: var(--color-target);
    color: var(--color-target);
}

.stat-badge.visibility-badge.closed {
    background: var(--color-cleanup-bg);
    border-color: var(--color-cleanup);
    color: var(--color-cleanup);
}

.stat-badge.visibility-badge.private {
    background: var(--color-paper-cool);
    border-color: var(--color-ink-lighter);
    color: var(--color-ink-light);
}

.subscribe-btn-lg {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-ink);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-paper);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.subscribe-btn-lg i {
    width: 16px;
    height: 16px;
}

.subscribe-btn-lg:hover {
    background: var(--color-ink-light);
}

.collection-taxonomy-lg {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: var(--border-width) solid var(--border-color);
}

.taxonomy-chip-lg {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
}

.taxonomy-chip-lg.domain-chip {
    background: var(--color-ink);
    color: var(--color-paper);
}

.taxonomy-chip-lg.category-chip {
    background: var(--color-target-bg);
    border: var(--border-width) solid var(--color-target);
    color: var(--color-target);
}

.taxonomy-chip-lg.tag-chip {
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    color: var(--color-ink-light);
}

/* ============================================
 * Tabbed Card Viewer
 * ============================================ */

.tabbed-card-viewer {
    max-width: 900px;
    margin: 0 auto;
}

.card-tabs-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-tabs {
    display: flex;
    gap: var(--space-1);
    flex: 1;
    overflow-x: auto;
    padding-bottom: var(--space-1);
    -webkit-overflow-scrolling: touch;
}

.card-tab {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.card-tab:hover {
    border-color: var(--color-ink-lighter);
    color: var(--color-ink);
}

.card-tab.active {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-paper);
}

.card-tab-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    background: var(--color-paper-cool);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
}

.card-tab.active .card-tab-number {
    background: rgba(255, 255, 255, 0.2);
}

.card-tab-title {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-nav-arrows {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.card-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.card-nav-btn i {
    width: 16px;
    height: 16px;
}

.card-nav-btn:hover:not(:disabled) {
    background: var(--color-paper-cool);
    color: var(--color-ink);
}

.card-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.card-position {
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
    min-width: 60px;
    text-align: center;
}

/* ============================================
 * Active Card Display
 * ============================================ */

.active-card-display {
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.card-content-section {
    padding: var(--space-5);
}

.active-card-title {
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-4);
    line-height: var(--leading-tight);
}

.active-card-content {
    font-size: var(--text-base);
    color: var(--color-ink);
    line-height: var(--leading-relaxed);
}

.active-card-content .rich-content {
    /* For HTML content */
}

.active-card-content .rich-content h1,
.active-card-content .rich-content h2,
.active-card-content .rich-content h3 {
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}

.active-card-content .rich-content p {
    margin-bottom: var(--space-3);
}

.active-card-content .rich-content ul,
.active-card-content .rich-content ol {
    margin-bottom: var(--space-3);
    padding-left: var(--space-5);
}

.active-card-content .plain-content {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    background: var(--color-paper-cool);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.active-card-no-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-8);
    color: var(--color-ink-lighter);
    text-align: center;
}

.active-card-no-content i {
    width: 32px;
    height: 32px;
    opacity: 0.5;
}

/* ============================================
 * Card Metadata Section (Collapsible)
 * ============================================ */

.card-metadata-section {
    border-top: var(--border-width) solid var(--border-color);
}

.metadata-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-3) var(--space-5);
    background: var(--color-paper-cool);
    border: none;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.metadata-toggle:hover {
    background: var(--color-paper-warm);
}

.metadata-toggle i {
    width: 16px;
    height: 16px;
}

.metadata-schema-name {
    margin-left: auto;
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
    font-weight: var(--weight-normal);
}

.metadata-content {
    overflow: auto;
    transition: max-height var(--transition-slow);
}

.metadata-content.collapsed {
    max-height: 0;
}

.metadata-content.expanded {
    max-height: 500px;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
}

.metadata-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.metadata-item.full-width {
    grid-column: 1 / -1;
}

.metadata-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--color-ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metadata-value {
    font-size: var(--text-sm);
    color: var(--color-ink);
}

.metadata-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
}

.metadata-tag {
    display: inline-flex;
    padding: var(--space-1) var(--space-2);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--color-ink-light);
}

.schema-fields {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.schema-field {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-2);
    background: var(--color-paper);
    border-radius: var(--radius-sm);
}

.field-key {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    min-width: 100px;
}

.field-value {
    font-size: var(--text-sm);
    color: var(--color-ink);
    flex: 1;
}

/* ============================================
 * Collection Cards Empty/Locked States
 * ============================================ */

.collection-cards-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.collection-cards-empty i {
    width: 48px;
    height: 48px;
    color: var(--color-ink-lighter);
    opacity: 0.5;
}

.collection-cards-empty h3 {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.collection-cards-empty p {
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
    margin: 0;
}

.collection-cards-locked {
    max-width: 900px;
    margin: 0 auto;
}

.locked-notice {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-8);
    background: var(--color-paper-cool);
    border: var(--border-width) dashed var(--color-cleanup);
    border-radius: var(--radius-lg);
    text-align: center;
}

.locked-notice i {
    width: 48px;
    height: 48px;
    color: var(--color-cleanup);
}

.locked-notice h3 {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.locked-notice p {
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    margin: 0;
    max-width: 400px;
}

/* ============================================
 * Collection Page Mobile
 * ============================================ */

@media (max-width: 640px) {
    .collection-info-section {
        padding: var(--space-4);
    }
    
    .collection-title {
        font-size: var(--text-xl);
    }
    
    .collection-meta-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-3);
    }
    
    .collection-stats-row {
        justify-content: center;
    }
    
    .subscribe-btn-lg {
        width: 100%;
        justify-content: center;
    }
    
    .card-tabs-container {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .card-tabs {
        width: 100%;
        justify-content: flex-start;
    }
    
    .card-nav-arrows {
        width: 100%;
        justify-content: center;
    }
    
    .card-content-section {
        padding: var(--space-4);
    }
    
    .metadata-grid {
        grid-template-columns: 1fr;
        padding: var(--space-3) var(--space-4);
    }
}

/* ============================================
 * Public Collection Page (No Auth Required)
 * ============================================ */

.public-collection-page {
    min-height: 100vh;
    width: 100%;
    background: var(--color-paper-warm);
}

.public-collection-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Public Collection Header */
.public-collection-header {
    background: var(--color-paper);
    border-bottom: var(--border-width) solid var(--border-color);
    padding: var(--space-8) var(--space-5);
}

.header-content {
    max-width: 900px;
    margin: 0 auto;
}

.collection-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.publisher-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.publisher-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: var(--border-width) solid var(--border-color);
}

.publisher-avatar-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.publisher-avatar-placeholder i {
    width: 24px;
    height: 24px;
    color: var(--color-ink-lighter);
}

.publisher-name {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink-light);
}

.collection-stats {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.collection-stats span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
}

.collection-stats span i {
    width: 14px;
    height: 14px;
}

.collection-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-3);
    line-height: var(--leading-tight);
}

.collection-description {
    font-size: var(--text-base);
    color: var(--color-ink-light);
    line-height: var(--leading-relaxed);
    margin: 0 0 var(--space-4);
}

/* Taxonomy Display */
.taxonomy-display {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-paper-cool);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.taxonomy-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.taxonomy-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--color-ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.taxonomy-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.taxonomy-tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
}

.taxonomy-tag.taxonomy-domain {
    background: var(--color-ink);
    color: var(--color-paper);
}

.taxonomy-tag.taxonomy-category {
    background: var(--color-target-bg);
    border: var(--border-width) solid var(--color-target);
    color: var(--color-target);
}

.taxonomy-tag.taxonomy-tag-item {
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    color: var(--color-ink-light);
}

/* Collection Actions */
.collection-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.action-btn-primary {
    background: var(--color-ink);
    border: var(--border-width) solid var(--color-ink);
    color: var(--color-paper);
}

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

.action-btn-secondary {
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    color: var(--color-ink-light);
}

.action-btn-secondary:hover {
    background: var(--color-paper-cool);
    border-color: var(--color-ink-lighter);
    color: var(--color-ink);
}

/* Public Cards Section */
.public-cards-section {
    padding: var(--space-6) var(--space-5);
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0 0 var(--space-5);
}

.section-title i {
    width: 20px;
    height: 20px;
    color: var(--color-ink-light);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-5);
}

/* Public Card */
.public-card {
    background: var(--color-paper);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: all var(--transition-fast);
}

.public-card:hover {
    border-color: var(--color-ink-lighter);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.card-title {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
    line-height: var(--leading-tight);
    flex: 1;
}

.card-schema {
    padding: var(--space-1) var(--space-2);
    background: var(--color-query-bg);
    border: var(--border-width) solid var(--color-query);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--color-query);
    white-space: nowrap;
}

.card-content {
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-bottom: var(--space-3);
}

.card-tag {
    padding: 2px var(--space-2);
    background: var(--color-paper-cool);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--color-ink-light);
}

.card-schema-data {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--color-paper-cool);
    border-radius: var(--radius-md);
}

.schema-field {
    display: flex;
    gap: var(--space-2);
    font-size: var(--text-sm);
}

.field-name {
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
    min-width: 100px;
}

.field-value {
    color: var(--color-ink);
    flex: 1;
    word-break: break-word;
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    gap: var(--space-3);
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.loading-icon {
    width: 48px;
    height: 48px;
    color: var(--color-ink-lighter);
    animation: spin 2s linear infinite;
}

.loading-icon i {
    width: 100%;
    height: 100%;
}

.loading-title {
    font-size: var(--text-lg);
    font-weight: var(--weight-medium);
    color: var(--color-ink-light);
}

/* Error State */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: var(--space-8);
}

.error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    max-width: 500px;
    text-align: center;
}

.error-icon {
    width: 64px;
    height: 64px;
    color: var(--color-error);
}

.error-icon i {
    width: 100%;
    height: 100%;
}

.error-title {
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
}

.error-message {
    font-size: var(--text-base);
    color: var(--color-ink-light);
    line-height: var(--leading-relaxed);
}

.error-action {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--color-ink);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-paper);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.error-action:hover {
    background: var(--color-ink-light);
}

.error-action i {
    width: 16px;
    height: 16px;
}

/* Public Collection Page Mobile */
@media (max-width: 768px) {
    .public-collection-header {
        padding: var(--space-5) var(--space-4);
    }
    
    .collection-title {
        font-size: var(--text-xl);
    }
    
    .collection-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .action-btn {
        width: 100%;
        justify-content: center;
    }
    
    .public-cards-section {
        padding: var(--space-5) var(--space-4);
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .taxonomy-display {
        padding: var(--space-3);
    }
    
    .card-schema-data {
        padding: var(--space-2);
    }
    
    .schema-field {
        flex-direction: column;
        gap: var(--space-1);
    }
    
    .field-name {
        min-width: auto;
    }
}