@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1e1e1e;
    --accent: #ff9900;
    --accent-hover: #ffa826;
    --accent-light: rgba(255, 153, 0, 0.1);
    --accent-border: rgba(255, 153, 0, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #555555;
    --border-color: #222222;
    --danger: #ef4444;
    --danger-hover: #f87171;
    --success: #10b981;
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 20px;
    
    --sidebar-width: 260px;
    --header-height: 70px;
    --max-content-width: 1400px;
    
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    --glow-shadow: 0 0 15px rgba(255, 153, 0, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    height: var(--header-height);
    background-color: rgba(20, 20, 20, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
}

.logo-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    text-decoration: none;
    user-select: none;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.logo-badge {
    background-color: var(--accent);
    color: #000000;
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    margin-left: 4px;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.search-container {
    flex: 0 1 500px;
    position: relative;
    margin: 0 1rem;
}

.search-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px 16px;
    transition: var(--transition-fast);
}

.search-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: var(--glow-shadow);
}

.search-input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    padding: 6px 0;
}

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

.search-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding-left: 8px;
    display: flex;
    align-items: center;
    transition: var(--transition-fast);
}

.search-btn:hover {
    color: var(--accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    user-select: none;
}

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

.btn-primary {
    background-color: var(--accent);
    color: #000000;
    border: none;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #000000;
    box-shadow: var(--glow-shadow);
}

.btn-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background-color: var(--danger);
    color: #ffffff;
    border-color: var(--danger);
}

.btn-icon {
    padding: 8px;
    border-radius: 50%;
    width: 38px;
    height: 38px;
}

/* Layout */
.layout-wrapper {
    display: flex;
    margin-top: var(--header-height);
    flex: 1;
}

/* Sidebar */
aside {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    overflow-y: auto;
    z-index: 90;
    transition: var(--transition-normal);
}

.sidebar-section {
    margin-bottom: 1.75rem;
}

.sidebar-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 800;
    padding-left: 8px;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
    cursor: pointer;
}

.sidebar-link-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-link:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-link.active {
    background-color: var(--accent-light);
    color: var(--accent);
    font-weight: 600;
}

.sidebar-count {
    font-size: 0.75rem;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

.sidebar-link.active .sidebar-count {
    background-color: var(--accent);
    color: #000000;
}

.sidebar-link.unclassified-link {
    border-left: 3px solid var(--accent);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 4px;
}

.tag-pill {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid var(--border-color);
}

.tag-pill:hover {
    background-color: var(--accent-light);
    color: var(--accent);
    border-color: var(--accent);
}

.tag-pill.active {
    background-color: var(--accent);
    color: #000000;
    border-color: var(--accent);
    font-weight: 600;
}

/* Main */
main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 1.5rem;
    min-height: calc(100vh - var(--header-height));
    transition: var(--transition-normal);
}

.content-container {
    max-width: var(--max-content-width);
    margin: 0 auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.5px;
}

.page-title span {
    color: var(--accent);
}

/* Filters Tabs bar */
.filter-tabs {
    display: flex;
    gap: 6px;
    background-color: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.filter-tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-tab:hover {
    color: var(--text-primary);
}

.filter-tab.active {
    background-color: var(--accent);
    color: #000000;
}

/* Grid & Cards */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

.video-card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.video-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-border);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.8);
}

.video-card.selected {
    border-color: var(--accent);
    background-color: rgba(255, 153, 0, 0.03);
}

.video-thumbnail-wrapper {
    position: relative;
    padding-top: 56.25%; /* 16:9 */
    background-color: #000000;
    overflow: hidden;
}

.video-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.video-card:hover .video-thumbnail {
    transform: scale(1.04);
}

.video-badge {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.85);
    color: var(--text-primary);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    z-index: 2;
}

.video-badge.image-badge {
    background-color: rgba(16, 185, 129, 0.85); /* green */
}

/* Play Hover Overlay */
.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
    z-index: 1;
}

.video-play-overlay svg {
    width: 40px;
    height: 40px;
    color: var(--accent);
    transform: scale(0.85);
    transition: var(--transition-fast);
}

.video-card:hover .video-play-overlay {
    opacity: 1;
}
.video-card:hover .video-play-overlay svg {
    transform: scale(1);
}

/* Checkbox for Admin bulk edit */
.card-checkbox-container {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 5;
    display: none; /* Only visible in admin mode */
    width: 22px;
    height: 22px;
    background-color: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.video-card.admin-mode .card-checkbox-container {
    display: flex;
}

.card-checkbox-container:hover {
    border-color: var(--accent);
    background-color: rgba(0, 0, 0, 0.8);
}

.video-card.selected .card-checkbox-container {
    background-color: var(--accent);
    border-color: var(--accent);
}

.card-checkbox-container svg {
    width: 14px;
    height: 14px;
    color: #000000;
    display: none;
}

.video-card.selected .card-checkbox-container svg {
    display: block;
}

.video-info {
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.video-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.25;
}

.video-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
}

.video-meta-dot {
    width: 3px;
    height: 3px;
    background-color: var(--text-muted);
    border-radius: 50%;
}

.video-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 0.4rem;
}

.video-card-tag {
    font-size: 0.65rem;
    color: var(--accent);
    font-weight: 500;
}

/* Empty View */
.empty-view {
    text-align: center;
    padding: 4rem 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}
.empty-view svg {
    width: 50px;
    height: 50px;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Player View */
.player-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .player-layout {
        grid-template-columns: 1fr;
    }
}

.player-main {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.player-container {
    position: relative;
    padding-top: 56.25%; /* 16:9 */
    background-color: #000000;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
}

.player-container iframe,
.player-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-details {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    border: 1px solid var(--border-color);
}

.video-details-title {
    font-size: 1.3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.video-details-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.85rem;
    margin-bottom: 0.85rem;
    gap: 0.75rem;
}

.video-stats {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.video-actions {
    display: flex;
    gap: 8px;
}

.video-description-box p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: pre-line;
}

.video-taxonomies {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 1.25rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--border-color);
}

.taxonomy-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
}

.taxonomy-label {
    color: var(--text-muted);
    font-weight: 700;
    min-width: 80px;
}

.taxonomy-items {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

/* Sidebar suggestions */
.player-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sidebar-headline {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.suggestion-card {
    display: flex;
    gap: 8px;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.suggestion-card:hover {
    border-color: var(--accent);
    background-color: var(--bg-tertiary);
}

.suggestion-thumbnail {
    width: 110px;
    height: 62px;
    position: relative;
    flex-shrink: 0;
    background-color: #000000;
}

.suggestion-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.suggestion-duration {
    position: absolute;
    bottom: 2px;
    right: 4px;
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--text-primary);
    font-size: 0.6rem;
    font-weight: 700;
    padding: 1px 3px;
    border-radius: 2px;
}

.suggestion-info {
    padding: 4px 6px 4px 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
}

.suggestion-title {
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 2px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}

.suggestion-meta {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* Bulk actions bar (floating bottom panel) */
.bulk-actions-bar {
    position: fixed;
    bottom: 24px;
    left: calc(var(--sidebar-width) + 24px);
    right: 24px;
    height: 64px;
    background-color: rgba(20, 20, 20, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--accent);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.8), var(--glow-shadow);
    z-index: 120;
    display: none; /* Toggled in JS */
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    animation: slideUp 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.15) forwards;
}

@keyframes slideUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.bulk-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    font-weight: 700;
}

.bulk-actions {
    display: flex;
    gap: 8px;
}

/* Modals & Forms */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 45px rgba(0, 0, 0, 0.9);
    transform: translateY(30px);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 900;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.5rem;
}

.modal-body {
    padding: 1.25rem 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.form-control {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 10px 14px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: var(--glow-shadow);
}

.form-helper {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 3px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: rgba(20, 20, 20, 0.4);
}

/* Toast Container */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--accent);
    color: var(--text-primary);
    padding: 12px 18px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    animation: slideIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.2) forwards;
    min-width: 250px;
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

@keyframes slideIn {
    from { transform: translateX(120%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.toast-error { border-left-color: var(--danger); }
.toast.toast-success { border-left-color: var(--success); }

/* Infinite Scroll / Loading State */
.loading-trigger {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1.5rem;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 153, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent);
    animation: spin 0.8s linear infinite;
}

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

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    header {
        padding: 0 1rem;
    }
    
    .search-container {
        display: none;
    }
    
    aside {
        transform: translateX(-100%);
        width: 100%;
        max-width: 280px;
    }
    
    aside.active {
        transform: translateX(0);
    }
    
    main {
        margin-left: 0;
        padding: 1rem;
    }
    
    .bulk-actions-bar {
        left: 16px;
        right: 16px;
        bottom: 16px;
        padding: 0 1rem;
        height: auto;
        flex-direction: column;
        gap: 10px;
        padding-top: 10px;
        padding-bottom: 10px;
    }
    
    .bulk-actions {
        width: 100%;
        justify-content: space-around;
    }

    .menu-toggle {
        display: flex !important;
    }
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
}

.tag-pill.person-badge {
    background-color: var(--accent);
    color: #000000;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border-color: var(--accent);
}

.tag-pill.person-badge:hover {
    background-color: var(--accent-hover);
    color: #000000;
    border-color: var(--accent-hover);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}