/* ==========================================================================
   FONT LOADING
   Local fonts (Avenir, Trajan Pro) are loaded dynamically by brand-loader.js
   from each entity's brand.json → brands/{entity}/fonts/ directory.
   ========================================================================== */

/* PT Serif - Long-form content (from Google Fonts) */
@import url('https://fonts.googleapis.com/css2?family=PT+Serif:wght@400;700&display=swap');

/* Import Brand Design System */
@import url('theme.css');


/* ==========================================================================
   CSS CUSTOM PROPERTIES (App-Specific)
   ==========================================================================
   Note: Core design tokens are in theme.css (--brand-* variables).
   These are application-specific layout overrides and aliases.
   ========================================================================== */

:root {
    /* App-specific aliases (map to brand variables) */
    --brand-link: var(--brand-text-link);
    --brand-light-gray: var(--brand-text-lightest);
    --brand-text-primary: var(--brand-text-base);
    --brand-text-secondary: var(--brand-text-secondary);
    --brand-border: var(--brand-form-control-border);

    /* Typography aliases */
    --font-primary: var(--brand-font-body);
    --font-display: var(--brand-font-display);
    --font-serif: var(--brand-font-heading);

    /* App-specific layout variables */
    --sidebar-width: 350px;
    --sidebar-min-width: 200px;
    --sidebar-max-width: 600px;
    --header-height: 110px;
    --notes-height: 200px;

    /* Admin/app UI uses the brand's small radius for consistency */
    --app-border-radius: var(--brand-radius-sm);
}


/* ==========================================================================
   BASE STYLES
   ========================================================================== */

body {
    font-family: var(--font-primary);
    background: var(--brand-light-gray);
    overflow-x: hidden;
    min-height: 100vh;
    color: var(--brand-text-primary);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography refinements */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--brand-text-primary);
}

/* Long-form content uses PT Serif */
.text-content,
.interpretation-text,
.rag-text,
.section-text-content {
    font-family: var(--font-serif);
    line-height: 1.7;
}

/* Special display headings (optional - use class="display-heading") */
.display-heading {
    font-family: var(--font-display);
    letter-spacing: 0.05em;
}


/* ==========================================================================
   TEXT CONTRAST - Ensure proper text colors on backgrounds
   ========================================================================== */

/* White text on dark/colored backgrounds (solid colors only) */
.bg-primary:not([class*="opacity"]),
.bg-secondary:not([class*="opacity"]),
.bg-success:not([class*="opacity"]),
.bg-danger:not([class*="opacity"]),
.bg-info:not([class*="opacity"]),
.bg-dark:not([class*="opacity"]) {
    color: #FFFFFF;
}

/* Dark text on light/translucent backgrounds */
.bg-warning,
.bg-light,
[class*="bg-opacity"] {
    color: var(--brand-text-primary);
}

/* Badge specific overrides for consistent styling */
.badge.bg-primary,
.badge.bg-secondary,
.badge.bg-success,
.badge.bg-danger,
.badge.bg-info,
.badge.bg-dark {
    color: #FFFFFF !important;
}

.badge.bg-warning,
.badge.bg-light {
    color: var(--brand-text-primary) !important;
}

/* Card headers on colored backgrounds */
.card-header.bg-primary,
.card-header.bg-secondary,
.card-header.bg-success,
.card-header.bg-danger,
.card-header.bg-info,
.card-header.bg-dark {
    color: #FFFFFF;
}

/* Card headers with translucent backgrounds need dark text */
.card-header.bg-success.bg-opacity-10,
.card-header.bg-primary.bg-opacity-10,
.card-header.bg-info.bg-opacity-10,
.card-header.bg-danger.bg-opacity-10,
.card-header.bg-warning.bg-opacity-10,
.card-header[class*="bg-opacity-10"],
.card-header[class*="bg-opacity-25"] {
    color: var(--brand-text-primary) !important;
}

/* ==========================================================================
   QUIZ QUESTION CARDS
   ========================================================================== */

.question-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    border: 1px solid #dee2e6;
}

.question-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
    border-color: var(--brand-primary);
}

.question-card .card-header {
    border-bottom: 1px solid #dee2e6;
}

.question-card .card-footer {
    border-top: 1px solid #f0f0f0;
}

/* Quiz Question Modal Fixes */
#questionDetailModal .modal-header {
    background: var(--brand-primary);
    color: #FFFFFF;
}

#questionDetailModal .modal-header .modal-title {
    color: #FFFFFF;
}

#questionDetailModal .modal-header .btn-close-white {
    filter: brightness(0) invert(1);
}

#questionDetailModal .modal-body {
    color: var(--brand-text-primary);
}

#questionDetailModal .modal-body p,
#questionDetailModal .modal-body span,
#questionDetailModal .modal-body div {
    color: var(--brand-text-primary);
}

#questionDetailModal .card-body {
    color: var(--brand-text-primary);
}

/* Ensure hint button has readable text */
#questionDetailModal .btn-dark {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #FFFFFF;
}

/* Answer text in modal */
#questionDetailModal .d-flex span {
    color: var(--brand-text-primary);
}

/* ==========================================================================
   HEADER
   ========================================================================== */

/* Legacy single-row header (still used by student.html) */
.app-header {
    height: var(--header-height);
    background: var(--brand-primary);
    color: white;
    display: flex;
    align-items: center;
    padding: 0 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1030;
    position: sticky;
    top: 0;
}

/* Two-level header layout */
.app-header.app-header-two-level {
    height: auto;
    flex-direction: column;
    padding: 0;
}

.app-header-two-level .header-main {
    display: flex;
    align-items: center;
    padding: 0 20px;
    min-height: 56px;
    width: 100%;
}

.app-header-two-level .header-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 20px;
    width: 100%;
    background: rgba(0, 0, 0, 0.15);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 38px;
}

.app-header-two-level .toolbar-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-header-two-level .toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.app-header-two-level .toolbar-right .btn-sm {
    padding: 3px 10px;
    font-size: 0.8rem;
    line-height: 1.4;
}

.app-header-two-level .header-entity-name {
    white-space: nowrap;
}

.app-header h1 {
    font-size: 1.4rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    color: #FFFFFF;
}

.header-logo {
    height: var(--brand-logo-height, 50px);
    margin: 10px 24px 10px 0;
}

@media (max-width: 768px) {
    .header-logo {
        height: var(--brand-logo-height-mobile, 40px);
    }
}

/* Page title next to logo */
.app-header h1 .page-title {
    margin-left: 8px;
    padding-left: 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.3);
}

/* Header Navigation Links */
.header-nav {
    display: flex;
    gap: 4px;
    margin-left: 32px;
}

.nav-link-header {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--brand-radius-sm);
    font-size: 0.825rem;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.nav-link-header:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-link-header.active {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.2);
}

.nav-divider {
    width: 1px;
    height: 20px;
    background-color: rgba(255, 255, 255, 0.25);
    margin: 0 4px;
    align-self: center;
    flex-shrink: 0;
}

/* Hide nav label text on medium screens to save space, keep icons */
@media (max-width: 1400px) and (min-width: 992px) {
    .nav-link-header .nav-label {
        display: none;
    }
    .nav-link-header i {
        margin-right: 0 !important;
    }
    .header-nav {
        gap: 2px;
    }
}

/* Mobile menu button */
.header-mobile-menu {
    padding: 4px 8px;
    text-decoration: none;
}

.header-actions {
    margin-left: auto;
    display: flex;
    gap: 10px;
    align-items: center;
}


/* ==========================================================================
   BUTTONS (LMS-inspired)
   ========================================================================== */

.btn {
    font-family: var(--font-primary);
    font-weight: 500;
    letter-spacing: 0.01em;
    border-radius: var(--brand-radius-sm);
    transition: all 0.2s ease;
    padding: 10px 20px;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
    border-radius: var(--brand-radius-sm);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
    border-radius: var(--brand-radius-sm);
}

/* Primary Button - Navy (like LMS DASHBOARD button) */
.btn-primary {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--brand-primary-dark);
    border-color: var(--brand-primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(22, 63, 107, 0.3);
}

/* Accent Button - Gold with Navy text (per brand guide) */
.btn-accent {
    background-color: var(--brand-accent);
    border-color: var(--brand-accent);
    color: #FFFFFF;
    /* Navy text on gold */
}

.btn-accent:hover {
    background-color: var(--brand-accent-dark);
    border-color: var(--brand-accent-dark);
    color: var(--brand-primary);
    transform: translateY(-1px);
}

.btn-outline-accent {
    color: var(--brand-accent);
    border-color: var(--brand-accent);
}

.btn-outline-accent:hover {
    background-color: var(--brand-accent);
    border-color: var(--brand-accent);
    color: #fff;
}

/* Outline Primary */
.btn-outline-primary {
    color: var(--brand-primary);
    border-color: var(--brand-primary);
}

.btn-outline-primary:hover {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #fff;
}


/* ==========================================================================
   MAIN LAYOUT
   ========================================================================== */

.app-container {
    display: flex;
    height: calc(100vh - var(--header-height));
}


/* ==========================================================================
   SIDEBAR
   ========================================================================== */

.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-min-width);
    max-width: var(--sidebar-max-width);
    background: white;
    border-right: 1px solid var(--brand-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: relative;
}

.sidebar-header {
    padding: 15px;
    border-bottom: 1px solid var(--brand-border);
    background: #f8f9fa;
}

.tree-container {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

/* Sidebar Resize Handle */
.sidebar-resize-handle {
    width: 6px;
    background: transparent;
    cursor: col-resize;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
    transition: background var(--transition);
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle.dragging {
    background: var(--brand-accent);
}

.sidebar-resize-handle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 4px;
    height: 40px;
    background: #ccc;
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition);
}

.sidebar-resize-handle:hover::before,
.sidebar-resize-handle.dragging::before {
    opacity: 1;
    background: white;
}

/* Prevent text selection while dragging */
body.resizing-sidebar {
    user-select: none;
    cursor: col-resize !important;
}

body.resizing-sidebar * {
    cursor: col-resize !important;
}


/* ==========================================================================
   TREE STYLES
   ========================================================================== */

.tree-node {
    margin: 2px 0;
}

.tree-item {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: var(--brand-radius);
    cursor: pointer;
    transition: all 0.15s;
    font-size: 0.9rem;
    font-weight: 500;
}

.tree-item:hover {
    background: #e9ecef;
}

.tree-item.selected {
    background: var(--brand-primary);
    color: white;
}

.tree-item.selected .tree-icon {
    color: white;
}

.tree-item.selected .tree-toggle {
    color: white;
}

.tree-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 4px;
    font-size: 0.85rem;
    color: var(--brand-text-secondary);
    border-radius: var(--brand-radius-xs);
    transition: all var(--transition);
    flex-shrink: 0;
}

.tree-toggle:hover {
    background: rgba(22, 63, 107, 0.1);
    color: var(--brand-primary);
}

.tree-icon {
    margin-right: 8px;
    font-size: 1rem;
}

.tree-icon.course {
    color: var(--brand-primary);
}

.tree-icon.chapter {
    color: var(--brand-primary);
}

.tree-icon.lesson {
    color: var(--brand-accent);
}

.tree-icon.image {
    color: #20c997;
}

.tree-icon.pdf {
    color: #dc3545;
}

.tree-icon.video {
    color: #e83e8c;
}

.tree-icon.youtube {
    color: #dc3545;
}

.tree-icon.podcast {
    color: var(--brand-accent);
}

/* Favorites section */
.favorites-section {
    background: linear-gradient(to right, rgba(237, 169, 44, 0.05), transparent);
}

.favorites-section .course-node {
    border-left: 3px solid var(--brand-accent);
}

.favorite-toggle {
    opacity: 0.3;
    transition: opacity 0.2s ease;
}

.tree-item:hover .favorite-toggle,
.favorite-toggle:hover {
    opacity: 1;
}

.favorite-toggle .bi-star-fill {
    opacity: 1;
}

/* Clickable stat cards */
.stat-card-clickable {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.stat-card-clickable:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
}

/* Asset list cards */
.asset-list-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.asset-list-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
    border-color: var(--brand-primary);
}

.min-width-0 {
    min-width: 0;
}

.tree-children {
    margin-left: 20px;
    display: none;
}

.tree-children.expanded {
    display: block;
}

.tree-badge {
    margin-left: auto;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--brand-radius-sm);
    font-weight: 600;
    color: #FFFFFF; /* Ensure white text on colored backgrounds */
}

.tree-badge.bg-warning,
.tree-badge.bg-light {
    color: var(--brand-text-primary); /* Dark text on light backgrounds */
}

/* Simplified tree meta info (cleaner than badges) */
.tree-meta {
    margin-left: auto;
    font-size: 0.75rem;
    color: #6c757d;
    font-weight: 400;
    white-space: nowrap;
}

.tree-item.selected .tree-meta {
    color: rgba(255, 255, 255, 0.7);
}

/* Tree indicator icons (homework, etc.) */
.tree-indicator {
    margin-left: 6px;
    font-size: 0.75rem;
    color: #6c757d;
    opacity: 0.7;
}

.tree-item.selected .tree-indicator {
    color: rgba(255, 255, 255, 0.7);
}

.tree-item:hover .tree-indicator {
    opacity: 1;
}

.badge-educational {
    background: #d4edda;
    color: #155724;
}

.badge-decorative {
    background: #f8d7da;
    color: #721c24;
}

.badge-pending {
    background: #fff3cd;
    color: #856404;
}


/* ==========================================================================
   MAIN CONTENT
   ========================================================================== */

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}


/* ==========================================================================
   WELCOME SCREEN
   ========================================================================== */

.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--brand-text-secondary);
}

.drop-zone {
    border: 3px dashed var(--brand-border);
    border-radius: var(--brand-radius-lg);
    padding: 60px;
    margin: 20px;
    transition: all 0.3s;
}

.drop-zone.dragover {
    border-color: var(--brand-primary);
    background: rgba(22, 63, 107, 0.05);
}


/* ==========================================================================
   SETUP CARD
   ========================================================================== */

.setup-card {
    background: white;
    border-radius: var(--brand-radius-sm);
    padding: 30px;
    max-width: 700px;
    margin: 20px auto;
    box-shadow: var(--brand-shadow-lg);
}

.setup-step {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.setup-step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    width: 32px;
    height: 32px;
    background: var(--brand-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h5 {
    margin: 0 0 8px 0;
    font-weight: 600;
}

.step-content p {
    margin: 0;
    color: var(--brand-text-secondary);
}

.step-content code {
    background: #f8f9fa;
    padding: 2px 6px;
    border-radius: var(--brand-radius-xs);
    font-size: 0.85rem;
}


/* ==========================================================================
   DETAIL PANEL (LMS-inspired)
   ========================================================================== */

.detail-panel {
    background: white;
    border-radius: var(--brand-radius);
    border: 1px solid #e9ecef;
    box-shadow: var(--brand-shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
}

.detail-header {
    padding: 24px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    gap: 16px;
    background: #fff;
}

.detail-header h2 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-primary, #163f6b);
}

.detail-body {
    padding: 24px;
}


/* ==========================================================================
   PROPERTIES TABLE
   ========================================================================== */

.props-table {
    width: 100%;
    border-collapse: collapse;
}

.props-table th,
.props-table td {
    padding: 10px 15px;
    border-bottom: 1px solid #f0f0f0;
    text-align: left;
}

.props-table th {
    background: #f8f9fa;
    font-weight: 600;
    width: 200px;
    color: #495057;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.props-table td {
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.9rem;
}

.props-table td.editable {
    cursor: pointer;
}

.props-table td.editable:hover {
    background: #f8f9fa;
}

.prop-value-text {
    max-height: 150px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.prop-value-url {
    color: var(--brand-link);
    word-break: break-all;
}

.prop-value-empty {
    color: #adb5bd;
    font-style: italic;
}


/* ==========================================================================
   ASSET PREVIEW
   ========================================================================== */

.asset-preview {
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.asset-preview img {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--brand-radius-sm);
    box-shadow: var(--brand-shadow-md);
}

.asset-preview .no-preview {
    padding: 60px;
    color: var(--brand-text-secondary);
}


/* ==========================================================================
   PDF PREVIEW
   ========================================================================== */

.pdf-preview {
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    padding: 20px;
    margin-bottom: 20px;
}

.pdf-preview canvas {
    max-width: 100%;
    box-shadow: var(--brand-shadow-md);
    border-radius: var(--brand-radius-xs);
}

.pdf-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--brand-border);
}


/* ==========================================================================
   TRIAGE BADGES
   ========================================================================== */

.triage-result {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--brand-radius-lg);
    font-weight: 600;
}

.triage-educational {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.triage-decorative {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

.triage-pending {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeeba 100%);
    color: #856404;
}


/* ==========================================================================
   FORMS & INPUTS (LMS-inspired)
   ========================================================================== */

.form-control {
    font-family: var(--font-primary);
    border-radius: var(--brand-radius-sm);
    border: 1px solid var(--brand-form-control-border);
    padding: 10px 14px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background: #fff;
}

.form-control:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(22, 63, 107, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--brand-text-muted);
}

.form-label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--brand-text-primary);
    margin-bottom: 6px;
}

.form-select {
    border-radius: var(--brand-radius-sm);
    border: 1px solid var(--brand-form-control-border);
    padding: 10px 14px;
}

.form-select:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(22, 63, 107, 0.1);
}

.input-group-text {
    border-radius: 8px 0 0 8px;
    border: 1px solid var(--brand-form-control-border);
    background: #f8f9fa;
}


/* ==========================================================================
   CARDS (LMS-inspired)
   ========================================================================== */

.card {
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius);
    box-shadow: var(--brand-shadow-sm);
    transition: box-shadow var(--transition), transform var(--transition);
    background: #fff;
}

.card:hover {
    box-shadow: var(--brand-shadow-md);
}

.card-header {
    background: #fff;
    border-bottom: 1px solid #e9ecef;
    font-weight: 600;
    padding: 16px 20px;
    border-radius: 16px 16px 0 0;
}

.card-body {
    padding: 20px;
}


/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

@keyframes pulse {

    0%,
    100% {
        opacity: 0.4;
    }

    50% {
        opacity: 1;
    }
}

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

    to {
        transform: rotate(360deg);
    }
}

.spin {
    animation: spin 1s linear infinite;
}


/* ==========================================================================
   PREVIEW STATES
   ========================================================================== */

.preview-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--brand-text-secondary);
    gap: 10px;
}

.preview-loading i {
    font-size: 2rem;
    animation: pulse 1.5s ease-in-out infinite;
}

.preview-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: #dc3545;
    gap: 5px;
}

.preview-error i {
    font-size: 1.5rem;
}

.preview-error span {
    font-size: 0.8rem;
}


/* ==========================================================================
   PDF VIEWER
   ========================================================================== */

.pdf-viewer {
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    padding: 15px;
    margin-top: 15px;
}

.pdf-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
}

.pdf-viewer-header h6 {
    margin: 0;
    color: #495057;
    font-weight: 600;
}

.pdf-viewer-controls {
    display: flex;
    gap: 8px;
}

.pdf-pages-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pdf-page-card {
    background: white;
    border-radius: var(--brand-radius-sm);
    border: 1px solid #e9ecef;
    overflow: hidden;
}

.pdf-page-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background: #f8f9fa;
    cursor: pointer;
    transition: background var(--transition);
}

.pdf-page-card-header:hover {
    background: #e9ecef;
}

.page-number {
    font-weight: 600;
    color: var(--brand-primary);
    min-width: 60px;
}

.page-summary-preview {
    flex: 1;
    color: var(--brand-text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-page-card-header .expand-icon {
    transition: transform var(--transition);
}

.pdf-page-card-body {
    border-top: 1px solid #e9ecef;
}

.pdf-page-card-body.collapsed {
    display: none;
}

.pdf-page-content-wrapper {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 15px;
    padding: 15px;
}

@media (max-width: 768px) {
    .pdf-page-content-wrapper {
        grid-template-columns: 1fr;
    }
}

.pdf-page-image-container {
    background: #f1f3f4;
    border-radius: var(--brand-radius-sm);
    overflow: hidden;
    position: relative;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-page-image {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
    transition: transform var(--transition);
}

.pdf-page-image:hover {
    transform: scale(1.02);
}

.pdf-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.pdf-image-overlay i {
    font-size: 2rem;
    color: white;
}

.pdf-page-image-container:hover .pdf-image-overlay {
    opacity: 1;
}

.pdf-page-image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    color: var(--brand-text-secondary);
    gap: 10px;
    text-align: center;
}

.pdf-page-image-placeholder i {
    font-size: 2rem;
}

.pdf-page-image-placeholder span {
    font-size: 0.8rem;
}

.pdf-page-text-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pdf-page-field label {
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--brand-text-secondary);
    margin-bottom: 5px;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pdf-field-value {
    background: #f8f9fa;
    padding: 10px;
    border-radius: var(--brand-radius-sm);
    font-size: 0.9rem;
    line-height: 1.5;
    cursor: text;
    transition: background var(--transition);
}

.pdf-field-value:hover {
    background: #e9ecef;
}

.pdf-key-points-list {
    margin: 0;
    padding-left: 20px;
}

.pdf-key-points-list li {
    margin-bottom: 5px;
    font-size: 0.9rem;
    cursor: text;
}

.pdf-key-points-list li:hover {
    color: var(--brand-primary);
}


/* ==========================================================================
   COURSE BROWSER
   ========================================================================== */

.course-browser-tree {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.course-filter {
    background: #f8f9fa;
    flex-shrink: 0;
}

.course-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

/* Country flag styling */
.country-flag {
    font-size: 0.9em;
    opacity: 0.8;
}

.course-browser-tree .course-node>.tree-item {
    padding-left: 8px;
}

.course-browser-tree .chapter-node>.tree-item {
    padding-left: 8px;
}

.course-browser-tree .lesson-node>.tree-item {
    padding-left: 8px;
}

/* Course item hover */
.course-item:hover {
    background: rgba(22, 63, 107, 0.05);
}

/* Tree loading and error states */
.tree-loading {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tree-loading i {
    animation: spin 1s linear infinite;
}

/* Section detail view */
.section-detail {
    padding: 20px;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--brand-primary);
}

.section-meta .badge {
    font-weight: 500;
}

.section-content .card-header {
    background: #f8f9fa;
    font-weight: 600;
}

.section-text-content {
    font-family: var(--font-serif);
    line-height: 1.7;
    color: var(--brand-text-primary);
}

.section-html-content {
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Asset cards */
.asset-card {
    transition: box-shadow var(--transition), transform var(--transition);
}

.asset-card:hover {
    box-shadow: var(--brand-shadow-md);
    transform: translateY(-2px);
}

.asset-preview-img {
    border-radius: var(--brand-radius);
    background: #f5f5f5;
}

.asset-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.asset-ai-description {
    border-left: 3px solid var(--brand-accent);
    padding-left: 8px;
    font-style: italic;
}

/* Course and chapter overview cards */
.chapter-card,
.lesson-card {
    transition: box-shadow var(--transition), background var(--transition);
}

.chapter-card:hover,
.lesson-card:hover {
    box-shadow: var(--brand-shadow-sm);
    background: #f8f9fa;
}

/* Browser overview stats */
.browser-overview .card {
    border-radius: var(--brand-radius);
    border: none;
    box-shadow: var(--brand-shadow-md);
}

.browser-overview h2 {
    color: var(--brand-text-primary);
}

/* Course overview stats */
.course-overview .card {
    border-radius: var(--brand-radius);
    border: none;
    box-shadow: var(--brand-shadow-md);
}

/* AI analysis panel */
.section-ai-analysis .card {
    border-radius: var(--brand-radius);
}

.section-ai-analysis h6 {
    color: var(--brand-primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.section-ai-analysis ul {
    margin-bottom: 0;
    padding-left: 20px;
}

/* Homework panel */
.section-homework .card {
    border-radius: var(--brand-radius);
}

/* Tree children for course browser */
.course-browser-tree .tree-children {
    display: none;
    padding-left: 16px;
}

.course-browser-tree .tree-children.expanded {
    display: block;
}

/* Selected state for items in browser */
.course-browser-tree .tree-item.selected {
    background: var(--brand-primary);
    border-left: 3px solid var(--brand-accent);
    color: #FFFFFF;
}

.course-browser-tree .tree-item.selected .tree-icon,
.course-browser-tree .tree-item.selected .tree-toggle,
.course-browser-tree .tree-item.selected .tree-badge,
.course-browser-tree .tree-item.selected .tree-label {
    color: #FFFFFF;
}

/* Course item selected */
.course-item.selected {
    background: var(--brand-primary);
    color: #FFFFFF;
}

.course-item.selected .tree-icon,
.course-item.selected .tree-toggle,
.course-item.selected .country-flag {
    color: #FFFFFF;
}


/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

.text-brand-primary {
    color: var(--brand-primary) !important;
}

.text-brand-accent {
    color: var(--brand-accent) !important;
}

.bg-brand-primary {
    background-color: var(--brand-primary) !important;
}

.bg-brand-accent {
    background-color: var(--brand-accent) !important;
}

/* Gold underscore decoration (matches main site feature cards) */
.gold-underline::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: var(--brand-accent);
    margin-top: 12px;
}


/* ==========================================================================
   NOTES PANEL - Dockable/Floating Rich Text Editor
   ========================================================================== */

.notes-panel {
    background: white;
    border: 1px solid var(--brand-border);
    border-radius: var(--brand-radius);
    box-shadow: var(--brand-shadow-md);
    display: flex;
    flex-direction: column;
    z-index: 100;
    /* Only transition specific properties, not position/size (causes drag lag) */
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

/* Dock positions */
.notes-panel.dock-bottom {
    position: relative;
    width: 100%;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
}

.notes-panel.dock-sidebar {
    position: fixed;
    right: 0;
    top: var(--header-height);
    width: 350px;
    height: calc(100vh - var(--header-height));
    border-radius: 0;
    border-right: none;
    border-top: none;
}

.notes-panel.dock-float {
    position: fixed;
    width: 400px;
    min-height: 250px;
    max-height: 500px;
    resize: both;
    overflow: hidden;
    box-shadow: var(--brand-shadow-lg);
}

.notes-panel.dock-float.dragging {
    opacity: 0.9;
    cursor: grabbing;
}

/* Header */
.notes-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
    color: white;
    font-weight: 500;
    font-size: 0.85rem;
    user-select: none;
}

/* Entire header is draggable when floating */
.dock-float .notes-header {
    cursor: grab;
}

.dock-float .notes-header:active {
    cursor: grabbing;
}

.notes-drag-handle {
    padding: 0 4px;
    opacity: 0.7;
}

/* Hide drag handle when not floating (not needed) */
.dock-bottom .notes-drag-handle,
.dock-sidebar .notes-drag-handle {
    display: none;
}

.notes-title {
    display: flex;
    align-items: center;
    gap: 6px;
}

.notes-title i {
    color: var(--brand-accent);
}

.notes-context {
    margin-left: 8px;
}

.notes-context .badge {
    font-weight: 400;
    font-size: 0.75rem;
}

.notes-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.notes-actions .btn {
    padding: 2px 6px;
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.notes-actions .btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.notes-actions .btn-group .btn {
    border-radius: 0;
}

.notes-actions .btn-group .btn:first-child {
    border-radius: var(--brand-radius) 0 0 var(--brand-radius);
}

.notes-actions .btn-group .btn:last-child {
    border-radius: 0 var(--brand-radius) var(--brand-radius) 0;
}

/* Body */
.notes-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.notes-editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 150px;
    overflow: hidden;
}

/* Quill Editor Styling */
#notesEditor {
    flex: 1;
    overflow-y: auto;
}

.notes-panel .ql-toolbar {
    border: none;
    border-bottom: 1px solid var(--brand-border);
    background: #f8f9fa;
    padding: 6px 8px;
}

.notes-panel .ql-container {
    border: none;
    font-family: var(--font-primary);
    font-size: 0.9rem;
}

.notes-panel .ql-editor {
    padding: 12px;
    line-height: 1.6;
    min-height: 100px;
}

.notes-panel .ql-editor.ql-blank::before {
    color: var(--brand-text-muted);
    font-style: normal;
}

/* Status bar */
.notes-status {
    padding: 4px 12px;
    background: #f8f9fa;
    border-top: 1px solid var(--brand-border);
    font-size: 0.75rem;
}

/* Sidebar dock adjustments */
.dock-sidebar .notes-body {
    height: calc(100% - 45px);
}

.dock-sidebar .notes-editor-container {
    min-height: 300px;
}

/* Notes Panel Resize Handles */
.notes-resize-handle {
    position: absolute;
    background: transparent;
    z-index: 10;
    display: none;
}

/* Top resize handle (for bottom dock - drag up/down) */
.notes-resize-top {
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    cursor: ns-resize;
}

.notes-resize-top::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 2px;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--brand-border);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.2s;
}

.notes-resize-top:hover::before,
.notes-resize-top.dragging::before {
    opacity: 1;
    background: var(--brand-primary);
}

/* Left resize handle (for sidebar dock - drag left/right) */
.notes-resize-left {
    top: 0;
    left: 0;
    bottom: 0;
    width: 6px;
    cursor: ew-resize;
}

.notes-resize-left::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 2px;
    transform: translateY(-50%);
    width: 3px;
    height: 40px;
    background: var(--brand-border);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.2s;
}

.notes-resize-left:hover::before,
.notes-resize-left.dragging::before {
    opacity: 1;
    background: var(--brand-primary);
}

/* Show appropriate handle based on dock position */
.dock-bottom .notes-resize-top {
    display: block;
}

.dock-sidebar .notes-resize-left {
    display: block;
}

/* Prevent text selection while resizing */
body.resizing-notes {
    user-select: none;
    cursor: ns-resize;
}

body.resizing-notes-horizontal {
    user-select: none;
    cursor: ew-resize;
}

/* Notes List Modal */
.notes-list-container {
    max-height: 400px;
    overflow-y: auto;
}

.note-list-item {
    padding: 12px;
    border: 1px solid var(--brand-border);
    border-radius: var(--brand-radius);
    margin-bottom: 8px;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.note-list-item:hover {
    background-color: var(--brand-light-gray);
    border-color: var(--brand-primary);
}

.note-list-item.active {
    background-color: rgba(22, 63, 107, 0.1);
    border-color: var(--brand-primary);
}

.note-list-preview {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--brand-text-primary);
    margin-bottom: 4px;
}

.note-list-meta {
    font-size: 0.75rem;
}


/* ==========================================================================
   BREADCRUMB NAVIGATION
   ========================================================================== */

.breadcrumb-nav {
    background: white;
    padding: 12px 20px;
    border-bottom: 1px solid var(--brand-border);
}

#breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 8px;
}

#breadcrumb .breadcrumb-item {
    display: inline-flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--brand-text-secondary);
}

#breadcrumb .breadcrumb-item+.breadcrumb-item::before {
    content: "›";
    padding-right: 8px;
    color: var(--brand-text-muted);
    font-weight: bold;
}

#breadcrumb .breadcrumb-item a {
    color: var(--brand-primary);
    text-decoration: none;
    transition: color var(--transition);
}

#breadcrumb .breadcrumb-item a:hover {
    color: var(--brand-accent);
    text-decoration: underline;
}

#breadcrumb .breadcrumb-item.active {
    color: var(--brand-text-primary);
    font-weight: 500;
}


/* ==========================================================================
   NOTES DASHBOARD
   ========================================================================== */

.notes-dashboard {
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.notes-dashboard .dashboard-header h2 {
    color: var(--brand-text-primary);
    font-weight: 600;
}

/* Stat Cards */
.notes-dashboard .stat-card {
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--brand-border);
}

.notes-dashboard .stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
    border-color: var(--brand-primary);
}

.notes-dashboard .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.notes-dashboard .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--brand-text-primary);
    line-height: 1;
}

.notes-dashboard .stat-label {
    font-size: 0.85rem;
    color: var(--brand-text-muted);
    margin-top: 4px;
}

/* Notes List Grid */
.notes-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.note-card {
    background: white;
    border: 1px solid var(--brand-border);
    border-radius: var(--brand-radius);
    padding: 16px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.note-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
    border-color: var(--brand-primary);
}

.note-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.note-card-header .badge {
    font-size: 0.75rem;
}

.note-card-header .note-date {
    font-size: 0.75rem;
}

.note-card-body {
    min-height: 60px;
}

.note-card-body .note-preview {
    font-size: 0.9rem;
    color: var(--brand-text-primary);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.note-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--brand-border);
}

.note-card-footer .note-actions {
    display: flex;
    gap: 4px;
}

.note-card-footer .note-actions .btn {
    padding: 4px 8px;
    font-size: 0.75rem;
}

/* Note Detail Modal */
.note-content-display {
    background: var(--brand-light-gray);
    border-radius: var(--brand-radius);
    padding: 20px;
    min-height: 100px;
    max-height: 400px;
    overflow-y: auto;
}

.note-content-display h1 {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.note-content-display h2 {
    font-size: 1.5rem;
    margin-bottom: 14px;
}

.note-content-display h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.note-content-display p {
    margin-bottom: 12px;
    line-height: 1.6;
}

.note-content-display ul,
.note-content-display ol {
    margin-bottom: 12px;
    padding-left: 24px;
}

.note-content-display blockquote {
    border-left: 4px solid var(--brand-primary);
    padding-left: 16px;
    margin: 16px 0;
    font-style: italic;
    color: var(--brand-text-muted);
}

.note-content-display pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 16px;
    border-radius: var(--brand-radius);
    overflow-x: auto;
    margin-bottom: 12px;
}


/* ==========================================================================
   DISCUSSION THREAD / COMMENTS
   ========================================================================== */

.comment-form {
    background: var(--brand-light-gray);
    padding: 12px;
    border-radius: var(--brand-radius);
}

.comment-item {
    background: white;
    border: 1px solid var(--brand-border);
    border-radius: var(--brand-radius);
    padding: 12px;
    margin-bottom: 12px;
}

.comment-item.comment-reply {
    background: var(--brand-light-gray);
    margin-left: 0;
    margin-bottom: 8px;
    border-color: transparent;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.comment-author {
    font-weight: 500;
    color: var(--brand-text-primary);
    font-size: 0.9rem;
}

.comment-date {
    font-size: 0.75rem;
    color: var(--brand-text-muted);
}

.comment-body {
    color: var(--brand-text-primary);
    line-height: 1.5;
    font-size: 0.9rem;
}

.comment-actions {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--brand-border);
}

.comment-actions .btn-link {
    padding: 0 8px 0 0;
    font-size: 0.8rem;
    text-decoration: none;
}

.comment-actions .btn-link:hover {
    text-decoration: underline;
}

.comment-replies {
    margin-top: 12px;
    padding-left: 20px;
    border-left: 2px solid var(--brand-border);
}

.reply-form-container {
    margin-top: 8px;
}

/* Empty state for comments */
#commentsContainer .text-center {
    padding: 20px;
}

/* ==========================================================================
   AI INTERPRETATION DISPLAY
   ========================================================================== */

/* Interpretation Toolbar */
.interpretation-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    flex-wrap: wrap;
    gap: 8px;
}

.provenance-bar {
    display: flex;
    gap: 8px;
    font-size: 0.8rem;
    flex-wrap: wrap;
}

.provenance-bar .model-badge,
.provenance-bar .date-badge {
    padding: 3px 10px;
    border-radius: var(--brand-radius-xs);
    background: #e9ecef;
    display: inline-flex;
    align-items: center;
}

.provenance-bar .model-badge {
    background: rgba(22, 63, 107, 0.1);
    color: var(--brand-primary, #163f6b);
}

.action-buttons {
    display: flex;
    gap: 4px;
}

/* Interpretation Sections (Pretty View) */
.interp-section {
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f0f0f0;
}

.interp-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.interp-section h6 {
    color: var(--brand-primary, #163f6b);
    font-size: 0.85rem;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.interp-section p {
    margin: 0;
    line-height: 1.6;
    color: #333;
}

.interp-section ul {
    margin: 0;
    padding-left: 20px;
    line-height: 1.8;
}

.interp-section li {
    margin-bottom: 4px;
}

.term-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* Pretty Interpretation Container */
.pretty-interpretation {
    background: linear-gradient(to bottom, #f8f9fa, #ffffff);
    border-radius: var(--brand-radius-sm);
    padding: 16px;
    border: 1px solid #e9ecef;
}

/* Pretty Text Display (for plain text) */
.pretty-text-display {
    background: linear-gradient(to bottom, #f8f9fa, #ffffff);
    border-radius: var(--brand-radius-sm);
    padding: 20px;
    border: 1px solid #e9ecef;
}

.pretty-text-display .text-content {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #333;
}

.pretty-text-display .text-content p {
    margin-bottom: 12px;
}

.pretty-text-display .text-content p:last-child {
    margin-bottom: 0;
}

/* Markdown Rendered Content */
.markdown-rendered h3.md-h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--brand-primary, #163f6b);
    margin: 1.5rem 0 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--brand-primary-light, rgba(22, 63, 107, 0.2));
}

.markdown-rendered h4.md-h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--brand-primary, #163f6b);
    margin: 1.25rem 0 0.5rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid #e9ecef;
}

.markdown-rendered h5.md-h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #495057;
    margin: 1rem 0 0.5rem;
}

.markdown-rendered h3.md-h1:first-child,
.markdown-rendered h4.md-h2:first-child,
.markdown-rendered h5.md-h3:first-child {
    margin-top: 0;
}

.markdown-rendered ul.md-list,
.markdown-rendered ol.md-list {
    margin: 0.5rem 0 1rem;
    padding-left: 0;
    list-style: none;
}

.markdown-rendered ul.md-list li {
    position: relative;
    padding: 0.5rem 0.75rem 0.5rem 2rem;
    margin-bottom: 0.25rem;
    background: rgba(22, 63, 107, 0.03);
    border-radius: var(--brand-radius-xs);
    border-left: 3px solid var(--brand-primary, #163f6b);
}

.markdown-rendered ul.md-list li::before {
    content: "•";
    position: absolute;
    left: 0.75rem;
    color: var(--brand-primary, #163f6b);
    font-weight: bold;
}

.markdown-rendered ol.md-list {
    counter-reset: md-counter;
}

.markdown-rendered ol.md-list li {
    position: relative;
    padding: 0.5rem 0.75rem 0.5rem 2.5rem;
    margin-bottom: 0.25rem;
    background: rgba(22, 63, 107, 0.03);
    border-radius: var(--brand-radius-xs);
    counter-increment: md-counter;
}

.markdown-rendered ol.md-list li::before {
    content: counter(md-counter) ".";
    position: absolute;
    left: 0.75rem;
    color: var(--brand-primary, #163f6b);
    font-weight: 600;
}

.markdown-rendered strong {
    font-weight: 700;
    color: #212529;
}

.markdown-rendered em {
    font-style: italic;
    color: #495057;
}

.markdown-rendered p {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.markdown-rendered p:last-child {
    margin-bottom: 0;
}

/* Description text in pretty view */
.description-text {
    background: #fff;
    padding: 12px 16px;
    border-radius: var(--brand-radius-sm);
    border-left: 4px solid var(--brand-primary, #163f6b);
    font-size: 0.95rem;
    line-height: 1.7;
}

.description-text p {
    margin-bottom: 8px;
}

.description-text p:last-child {
    margin-bottom: 0;
}

/* Fact list styling */
.fact-list {
    list-style: none;
    padding-left: 0 !important;
    margin: 0;
}

.fact-list li {
    padding: 6px 12px;
    background: #fff;
    border-radius: var(--brand-radius-xs);
    margin-bottom: 6px;
    border: 1px solid #e9ecef;
    display: flex;
    align-items: flex-start;
}

.fact-list li i {
    margin-top: 2px;
    flex-shrink: 0;
}

/* Question list styling */
.question-list {
    list-style: none;
    padding-left: 0 !important;
    margin: 0;
}

.question-list li {
    padding: 8px 12px;
    background: rgba(22, 63, 107, 0.05);
    border-radius: var(--brand-radius-xs);
    margin-bottom: 6px;
    border-left: 3px solid var(--brand-primary, #163f6b);
    display: flex;
    align-items: flex-start;
}

.question-list li i {
    margin-top: 2px;
    flex-shrink: 0;
}

/* Visual structure styling */
.visual-structure {
    background: #fff;
    padding: 12px 16px;
    border-radius: var(--brand-radius-sm);
    border: 1px dashed #dee2e6;
    font-size: 0.9rem;
}

/* Other properties (definition list) */
.other-props {
    margin: 0;
    background: #fff;
    border-radius: var(--brand-radius-sm);
    padding: 12px;
    border: 1px solid #e9ecef;
}

.other-props dt {
    font-weight: 600;
    color: var(--brand-primary, #163f6b);
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.other-props dd {
    margin-left: 0;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
}

.other-props dd:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* JSON Display */
.json-display {
    background: #1e1e1e;
    border-radius: var(--brand-radius-sm);
    padding: 16px;
    margin: 0;
    overflow-x: auto;
}

.json-display code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    color: #d4d4d4;
}

/* JSON Syntax Highlighting */
.json-key { color: #9cdcfe; }
.json-string { color: #ce9178; }
.json-number { color: #b5cea8; }
.json-boolean { color: #569cd6; }
.json-null { color: #569cd6; }

/* Raw Display */
.raw-display {
    background: #f8f8f8;
    border: 1px solid #e0e0e0;
    border-radius: var(--brand-radius-sm);
    padding: 16px;
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    color: #333;
}

/* Format toggle button active state */
.btn-group .btn[data-format].active {
    background-color: var(--brand-primary, #163f6b);
    border-color: var(--brand-primary, #163f6b);
    color: white;
}

/* ==========================================================================
   META PROPERTIES SECTION (Asset Detail)
   ========================================================================== */

.meta-properties-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.meta-property-group {
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    padding: 16px;
    border: 1px solid #e9ecef;
}

.meta-property-group h6 {
    color: var(--brand-primary, #163f6b);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--brand-primary-light, rgba(22, 63, 107, 0.2));
}

.meta-property-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
}

.meta-property-row:last-child {
    border-bottom: none;
}

.meta-property-row label {
    font-size: 0.8rem;
    color: #6c757d;
    font-weight: 500;
    min-width: 120px;
    margin: 0;
}

.meta-property-value {
    font-size: 0.875rem;
    color: #333;
    text-align: right;
    flex: 1;
    word-break: break-word;
}

.meta-property-value.badge {
    text-align: center;
}

/* Confidence Display */
.confidence-display {
    display: flex;
    align-items: center;
    gap: 8px;
}

.confidence-bar {
    width: 80px;
    height: 8px;
    background: #e9ecef;
    border-radius: var(--brand-radius-xs);
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    border-radius: var(--brand-radius-xs);
    transition: width 0.3s ease;
}

.confidence-fill.high {
    background: linear-gradient(90deg, #58c76b, #2e7d32);
}

.confidence-fill.medium {
    background: linear-gradient(90deg, #ffc107, #ff9800);
}

.confidence-fill.low {
    background: linear-gradient(90deg, #f0506b, #c62828);
}

.confidence-value {
    font-size: 0.8rem;
    font-weight: 600;
    min-width: 40px;
}

/* Classification Badge Colors */
.badge.classification-educational {
    background-color: #58c76b !important;
    color: white;
}

.badge.classification-decorative {
    background-color: #6c757d !important;
    color: white;
}

.badge.classification-commerce {
    background-color: #ffc107 !important;
    color: #333;
}

.badge.classification-redundant {
    background-color: #f0506b !important;
    color: white;
}

.badge.classification-default {
    background-color: #0dcaf0 !important;
    color: #333;
}

/* Placeholder for future properties */
.placeholder-property {
    color: #adb5bd;
    font-style: italic;
    font-size: 0.8rem;
}

/* Edit Properties Button */
.meta-properties-footer {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #dee2e6;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ==========================================================================
   LMS vs RAG ANALYSIS BADGES
   ========================================================================== */

/* Source type badges - used across pages to distinguish analysis sources */
.badge-lms {
    background-color: #3498db;
    color: #fff;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: var(--brand-radius-pill);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-rag {
    background-color: #9b59b6;
    color: #fff;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: var(--brand-radius-pill);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-rag-heuristic {
    background-color: #95a5a6;
    color: #fff;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: var(--brand-radius-pill);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-rag-ai {
    background-color: #9b59b6;
    color: #fff;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: var(--brand-radius-pill);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-human {
    background-color: #27ae60;
    color: #fff;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: var(--brand-radius-pill);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Analysis section styling */
.analysis-section {
    background: #fff;
    border-radius: var(--brand-radius);
    padding: 20px;
    border-left: 4px solid transparent;
    margin-bottom: 16px;
}

.analysis-section.source-lms {
    border-left-color: #3498db;
}

.analysis-section.source-rag {
    border-left-color: #9b59b6;
}

.analysis-section.source-human {
    border-left-color: #27ae60;
}


/* ==========================================================================
   TAMARIND LMS-INSPIRED STYLES
   Matches the look and feel of the student-facing LMS
   ========================================================================== */

/* --------------------------------------------------------------------------
   ENHANCED CARD STYLES (LMS-style)
   -------------------------------------------------------------------------- */

.card-lms {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius);
    box-shadow: var(--brand-shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    overflow: hidden;
}

.card-lms:hover {
    box-shadow: var(--brand-shadow-md);
}

.card-lms .card-header {
    background: #fff;
    border-bottom: 1px solid #e9ecef;
    padding: 16px 20px;
    font-weight: 600;
}

.card-lms .card-body {
    padding: 20px;
}

/* --------------------------------------------------------------------------
   CHAPTER/SECTION HEADER BARS (Navy with white text - like LMS)
   -------------------------------------------------------------------------- */

.chapter-header-bar {
    background: var(--color-primary, #163f6b);
    color: #fff;
    padding: 14px 20px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px 8px 0 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chapter-header-bar i {
    opacity: 0.8;
}

/* Lesson list item (like LMS course outline) */
.lesson-list-item {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.15s ease;
    gap: 12px;
}

.lesson-list-item:hover {
    background: #f8f9fa;
}

.lesson-list-item:last-child {
    border-bottom: none;
}

.lesson-list-item .lesson-number {
    color: var(--color-gray, #929497);
    font-size: 0.85rem;
    min-width: 24px;
}

.lesson-list-item .lesson-title {
    flex: 1;
    font-weight: 500;
    color: var(--color-base, #404041);
}

.lesson-list-item .lesson-duration {
    color: var(--color-gray, #929497);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.lesson-list-item .lesson-status {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.lesson-list-item .lesson-status.completed {
    background: var(--color-success, #58c76b);
    color: #fff;
}

.lesson-list-item .lesson-status.in-progress {
    background: var(--color-info, #4cc0d2);
    color: #fff;
}

.lesson-list-item .lesson-status.not-started {
    background: #e9ecef;
    color: var(--color-gray, #929497);
}

/* --------------------------------------------------------------------------
   COURSE BANNER (Navy overlay like LMS)
   -------------------------------------------------------------------------- */

.course-banner {
    background: linear-gradient(135deg, var(--color-primary, #163f6b) 0%, var(--color-primary-dark, #0d2d4d) 100%);
    color: #fff;
    padding: 32px;
    border-radius: var(--brand-radius);
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.course-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="80" cy="20" r="40" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="80" r="30" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: cover;
}

.course-banner h1,
.course-banner h2 {
    color: #fff;
    margin: 0 0 8px 0;
    position: relative;
    z-index: 1;
}

.course-banner p {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    position: relative;
    z-index: 1;
}

/* --------------------------------------------------------------------------
   CALLOUT BOXES (SOLO ACTIVITY, THINK ABOUT, DATE NIGHT, etc.)
   -------------------------------------------------------------------------- */

.callout-box {
    display: flex;
    gap: 20px;
    padding: 24px;
    border-radius: var(--brand-radius-sm);
    margin: 24px 0;
    align-items: flex-start;
}

.callout-box .callout-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.callout-box .callout-content h4 {
    margin: 0 0 12px 0;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.callout-box .callout-content p {
    margin: 0;
    line-height: 1.7;
}

/* Solo Activity - Teal */
.callout-box.solo-activity {
    background: linear-gradient(135deg, #e8f4f8 0%, #d5eef5 100%);
}

.callout-box.solo-activity .callout-icon {
    background: #4cc0d2;
    color: #fff;
}

.callout-box.solo-activity .callout-content h4 {
    color: #2a8a9a;
}

/* Think About - Teal/Green */
.callout-box.think-about {
    background: linear-gradient(135deg, #e5f5f0 0%, #d0ebe5 100%);
}

.callout-box.think-about .callout-icon {
    background: #3aafa9;
    color: #fff;
}

.callout-box.think-about .callout-content h4 {
    color: #2a8a85;
}

/* Date Night - Pink/Heart */
.callout-box.date-night {
    background: linear-gradient(135deg, #fce4ec 0%, #f8bbd9 100%);
}

.callout-box.date-night .callout-icon {
    background: #e91e63;
    color: #fff;
}

.callout-box.date-night .callout-content h4 {
    color: #c2185b;
}

/* Deep Dive - Blue */
.callout-box.deep-dive {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

.callout-box.deep-dive .callout-icon {
    background: #1976d2;
    color: #fff;
}

.callout-box.deep-dive .callout-content h4 {
    color: #1565c0;
}

/* Takeaway - Gold/Orange */
.callout-box.takeaway {
    background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
}

.callout-box.takeaway .callout-icon {
    background: var(--color-accent, #EDA92C);
    color: #fff;
}

.callout-box.takeaway .callout-content h4 {
    color: #f57c00;
}

/* --------------------------------------------------------------------------
   ACCORDION SECTIONS (Expandable content like LMS)
   -------------------------------------------------------------------------- */

.accordion-lms {
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius-sm);
    overflow: hidden;
    margin-bottom: 8px;
}

.accordion-lms-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: #fff;
    cursor: pointer;
    transition: background 0.15s ease;
    font-weight: 600;
    color: var(--color-base, #404041);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.accordion-lms-header:hover {
    background: #f8f9fa;
}

.accordion-lms-header .accordion-icon {
    transition: transform 0.2s ease;
}

.accordion-lms-header.expanded .accordion-icon {
    transform: rotate(180deg);
}

.accordion-lms-body {
    padding: 0 20px 20px;
    display: none;
}

.accordion-lms-body.show {
    display: block;
}

/* --------------------------------------------------------------------------
   DASHBOARD STAT CARDS (Like LMS dashboard)
   -------------------------------------------------------------------------- */

.stat-card-lms {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius);
    padding: 24px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card-lms:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.stat-card-lms .stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--brand-card-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
    color: var(--color-primary, #163f6b);
}

.stat-card-lms .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-base, #404041);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-card-lms .stat-label {
    font-size: 0.85rem;
    color: var(--color-gray, #929497);
}

/* Quick action tiles (like LMS dashboard grid) */
.quick-action-tile {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-action-tile:hover {
    background: #f8f9fa;
    border-color: var(--color-primary, #163f6b);
    transform: translateY(-2px);
}

.quick-action-tile .tile-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--brand-radius-sm);
    background: var(--brand-card-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.25rem;
    color: var(--color-primary, #163f6b);
}

.quick-action-tile .tile-label {
    font-weight: 500;
    color: var(--color-base, #404041);
    font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   PROGRESS INDICATORS (Like LMS donut charts)
   -------------------------------------------------------------------------- */

.progress-ring {
    position: relative;
    width: 120px;
    height: 120px;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-ring .progress-ring-bg {
    fill: none;
    stroke: #e9ecef;
    stroke-width: 12;
}

.progress-ring .progress-ring-fill {
    fill: none;
    stroke-width: 12;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-ring .progress-ring-fill.completed {
    stroke: var(--brand-orange-accent);
}

.progress-ring .progress-ring-fill.in-progress {
    stroke: var(--color-primary, #163f6b);
}

.progress-ring .progress-ring-fill.not-started {
    stroke: #e9ecef;
}

.progress-ring-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-ring-label .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-base, #404041);
    display: block;
}

.progress-ring-label .label {
    font-size: 0.75rem;
    color: var(--color-gray, #929497);
}

/* --------------------------------------------------------------------------
   CONTENT TYPOGRAPHY (Match LMS lesson pages)
   -------------------------------------------------------------------------- */

.lesson-content-lms {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-base, #404041);
}

.lesson-content-lms h1,
.lesson-content-lms h2 {
    font-family: var(--font-heading, 'PT Serif', Georgia, serif);
    color: var(--color-primary, #163f6b);
    margin: 2rem 0 1rem;
    line-height: 1.3;
}

.lesson-content-lms h1 {
    font-size: 2rem;
}

.lesson-content-lms h2 {
    font-size: 1.5rem;
}

.lesson-content-lms h3 {
    font-size: 1.25rem;
    color: var(--color-base, #404041);
    margin: 1.5rem 0 0.75rem;
}

.lesson-content-lms p {
    margin-bottom: 1.25rem;
}

.lesson-content-lms ul,
.lesson-content-lms ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.lesson-content-lms li {
    margin-bottom: 0.5rem;
}

.lesson-content-lms blockquote {
    border-left: 4px solid var(--color-primary, #163f6b);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background: #f8f9fa;
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.lesson-content-lms a {
    color: var(--color-link, #4679cc);
    text-decoration: underline;
}

.lesson-content-lms a:hover {
    color: var(--color-primary, #163f6b);
}

/* --------------------------------------------------------------------------
   PREV/NEXT NAVIGATION (Like LMS lesson navigation)
   -------------------------------------------------------------------------- */

.lesson-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    margin: 24px 0;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.lesson-nav .nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius-sm);
    background: #fff;
    color: var(--color-base, #404041);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
}

.lesson-nav .nav-btn:hover {
    background: #f8f9fa;
    border-color: var(--color-primary, #163f6b);
    color: var(--color-primary, #163f6b);
}

.lesson-nav .nav-btn.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   SIDEBAR MENU (Like LMS Learning Tools sidebar)
   -------------------------------------------------------------------------- */

.sidebar-menu-lms {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius);
    overflow: hidden;
}

.sidebar-menu-section {
    padding: 16px 20px 8px;
}

.sidebar-menu-section h5 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary, #163f6b);
    margin: 0 0 12px 0;
}

.sidebar-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--color-base, #404041);
    text-decoration: none;
    transition: background 0.15s ease;
}

.sidebar-menu-item:hover {
    background: #f8f9fa;
}

.sidebar-menu-item.active {
    background: rgba(22, 63, 107, 0.08);
    color: var(--color-primary, #163f6b);
}

.sidebar-menu-item i {
    width: 20px;
    text-align: center;
    color: var(--color-gray, #929497);
}

.sidebar-menu-item.active i {
    color: var(--color-primary, #163f6b);
}

.sidebar-menu-divider {
    height: 1px;
    background: #e9ecef;
    margin: 8px 0;
}

/* --------------------------------------------------------------------------
   RESOURCE CARDS (Like LMS Resources section)
   -------------------------------------------------------------------------- */

.resource-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: var(--brand-radius-sm);
    transition: all 0.15s ease;
    cursor: pointer;
}

.resource-card:hover {
    border-color: var(--color-primary, #163f6b);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.resource-card .resource-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--brand-radius-sm);
    background: var(--brand-card-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.resource-card .resource-icon.pdf {
    color: #dc3545;
}

.resource-card .resource-icon.video {
    color: #e83e8c;
}

.resource-card .resource-icon.glossary {
    color: var(--color-primary, #163f6b);
}

.resource-card .resource-info h6 {
    margin: 0 0 4px 0;
    font-weight: 600;
    color: var(--color-base, #404041);
}

.resource-card .resource-info span {
    font-size: 0.85rem;
    color: var(--color-gray, #929497);
}

/* --------------------------------------------------------------------------
   BADGE STYLES (Enhanced)
   -------------------------------------------------------------------------- */

.badge-lms {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: var(--brand-radius-lg);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-lms.finished {
    background: var(--brand-orange-accent);
    color: #fff;
}

.badge-lms.in-progress {
    background: var(--color-primary, #163f6b);
    color: #fff;
}

.badge-lms.not-started {
    background: #e9ecef;
    color: var(--color-gray, #929497);
}

/* --------------------------------------------------------------------------
   COURSE BROWSER LANDING PAGE
   -------------------------------------------------------------------------- */

.browser-overview {
    padding: 0;
}

/* Welcome Banner (like LMS admin dashboard) */
.welcome-banner {
    background: linear-gradient(135deg, var(--color-primary, #163f6b) 0%, #1e4a7d 100%);
    border-radius: var(--brand-radius);
    padding: 32px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.welcome-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.welcome-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: 10%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
}

.welcome-content {
    position: relative;
    z-index: 1;
}

.welcome-content h2 {
    color: #fff;
    margin: 0 0 8px 0;
    font-size: 1.75rem;
    font-weight: 600;
}

.welcome-content p {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    font-size: 1rem;
}

.welcome-illustration {
    position: relative;
    z-index: 1;
}

.welcome-illustration i {
    font-size: 4rem;
    opacity: 0.3;
}

/* Asset Type Grid */
.asset-type-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

@media (max-width: 768px) {
    .asset-type-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.asset-type-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--brand-radius-sm);
    background: #f8f9fa;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.asset-type-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
}

.asset-type-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--brand-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.asset-type-info {
    display: flex;
    flex-direction: column;
}

.asset-type-count {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-base, #404041);
    line-height: 1.2;
}

.asset-type-label {
    font-size: 0.8rem;
    color: var(--color-gray, #929497);
}

/* Publication Stats */
.publication-stats {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.pub-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pub-count {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}

.pub-count.published {
    color: #4caf50;
}

.pub-count.draft {
    color: #ff9800;
}

.pub-label {
    font-size: 0.85rem;
    color: var(--color-gray, #929497);
}

/* Region List */
.region-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.region-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    transition: background 0.15s ease;
}

.region-item:hover {
    background: #e9ecef;
}

.region-name {
    font-weight: 500;
    color: var(--color-base, #404041);
}

.region-count {
    font-weight: 700;
    color: var(--color-primary, #163f6b);
    background: rgba(22, 63, 107, 0.1);
    padding: 4px 12px;
    border-radius: var(--brand-radius-sm);
    font-size: 0.85rem;
}

/* Getting Started List */
.getting-started-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.getting-started-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    transition: background 0.15s ease;
}

.getting-started-item:hover {
    background: #e9ecef;
}

.getting-started-item i {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.getting-started-item span {
    color: var(--color-base, #404041);
    font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   COURSE DETAIL PAGE
   -------------------------------------------------------------------------- */

/* Course Detail Banner */
.course-detail-banner {
    background: linear-gradient(135deg, var(--color-primary, #163f6b) 0%, #1e4a7d 100%);
    border-radius: var(--brand-radius);
    padding: 24px 32px;
    display: flex;
    align-items: center;
    gap: 24px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.course-detail-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.course-cover-wrapper {
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.course-cover-img {
    width: 160px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--brand-radius-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.course-banner-content {
    position: relative;
    z-index: 1;
}

.course-banner-content h2 {
    color: #fff;
    margin: 0 0 12px 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.course-country {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
}

.course-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--brand-radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
}

.course-badge.published {
    background: rgba(76, 175, 80, 0.2);
    color: #a5d6a7;
}

.course-badge.draft {
    background: rgba(255, 152, 0, 0.2);
    color: #ffcc80;
}

.course-badge.vectorized {
    background: rgba(76, 192, 210, 0.2);
    color: #80deea;
}

.course-badge.not-vectorized {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.course-banner-actions {
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.course-banner-actions .btn {
    white-space: nowrap;
}

/* Clickable stat cards */
.stat-card-lms.clickable {
    cursor: pointer;
}

.stat-card-lms.clickable:hover {
    transform: translateY(-4px);
    box-shadow: var(--brand-shadow-lg);
    border-color: var(--color-primary, #163f6b);
}

.asset-type-item.clickable {
    cursor: pointer;
}

.asset-type-item.clickable:hover {
    transform: translateY(-2px);
    box-shadow: var(--brand-shadow-md);
}

/* Clickable publication stats */
.pub-stat.clickable {
    cursor: pointer;
    transition: all 0.15s ease;
}

.pub-stat.clickable:hover {
    transform: scale(1.05);
}

/* Vectorized count color */
.pub-count.vectorized {
    color: var(--color-info, #4cc0d2);
}

/* Clickable region items */
.region-item.clickable {
    cursor: pointer;
    transition: all 0.15s ease;
}

.region-item.clickable:hover {
    background: var(--color-blue-light, #e8f0f8);
    transform: translateX(4px);
}

/* Help button in welcome banner */
.welcome-banner {
    position: relative;
}

.welcome-banner .help-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.welcome-banner .help-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.welcome-banner .help-btn i {
    font-size: 1rem;
}

/* Embedded Resources Grid */
.embedded-resources-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
}

@media (max-width: 992px) {
    .embedded-resources-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 576px) {
    .embedded-resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.embedded-resource-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 12px;
    background: #f8f9fa;
    border-radius: var(--brand-radius-sm);
    text-align: center;
    transition: all 0.15s ease;
}

.embedded-resource-item i {
    font-size: 1.5rem;
    color: var(--color-gray, #929497);
    margin-bottom: 8px;
}

.embedded-resource-item .resource-count {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gray, #929497);
    line-height: 1;
}

.embedded-resource-item .resource-label {
    font-size: 0.7rem;
    color: var(--color-gray, #929497);
    margin-top: 4px;
}

.embedded-resource-item.has-content {
    background: rgba(22, 63, 107, 0.08);
}

.embedded-resource-item.has-content i,
.embedded-resource-item.has-content .resource-count {
    color: var(--color-primary, #163f6b);
}

.embedded-resource-item.has-content .resource-label {
    color: var(--color-base, #404041);
}

/* --------------------------------------------------------------------------
   EXTRACTION PREVIEW MODAL (Cleaned up)
   -------------------------------------------------------------------------- */

.extraction-stat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #6c757d;
    font-size: 0.85rem;
}

.extraction-stat i {
    font-size: 0.9rem;
}

.extraction-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(22, 63, 107, 0.1);
    color: var(--color-primary, #163f6b);
    border-radius: var(--brand-radius-xs);
    font-size: 0.75rem;
    font-weight: 500;
}

.lesson-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--brand-radius-xs);
    font-size: 0.7rem;
    font-weight: 500;
}

.lesson-tag.homework {
    background: rgba(237, 169, 44, 0.15);
    color: #c68900;
}

.enrichment-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.85rem;
}

.enrichment-badge.completed {
    color: #4caf50;
}

.enrichment-badge.processing {
    color: #ff9800;
}

.enrichment-badge.pending {
    color: #9e9e9e;
}

.lesson-meta span {
    margin-right: 4px;
}

/* Chapter meta in accordion */
.chapter-meta {
    white-space: nowrap;
}

/* ==========================================================================
   DRAGGABLE MODALS
   ========================================================================== */

/* Make modal header show it's draggable */
.modal-header-draggable {
    cursor: grab;
    user-select: none;
    position: relative;
}

.modal-header-draggable:active {
    cursor: grabbing;
}

/* Visual feedback while dragging */
.modal-dragging {
    opacity: 0.95;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3) !important;
}

/* Ensure dragged modals appear above others */
.modal-dialog.modal-dragging {
    z-index: 1060;
}

/* Add a subtle drag indicator to headers */
.modal-header-draggable::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.modal-header-draggable:hover::after {
    opacity: 1;
}

/* Better visibility on colored headers */
.modal-header-draggable[style*="background"]::after,
.bg-primary .modal-header-draggable::after {
    background: rgba(255, 255, 255, 0.5);
}

/* Resize handle — bottom-right corner */
.modal-resize-handle {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 20px;
    height: 20px;
    cursor: nwse-resize;
    z-index: 10;
    border-right: 3px solid rgba(0, 0, 0, 0.15);
    border-bottom: 3px solid rgba(0, 0, 0, 0.15);
    border-radius: 0 0 var(--brand-radius-sm) 0;
    transition: border-color 0.2s ease;
}

.modal-resize-handle:hover {
    border-right-color: var(--brand-primary, #1a365d);
    border-bottom-color: var(--brand-primary, #1a365d);
}

/* Visual feedback while resizing */
.modal-dialog.modal-resizing {
    opacity: 0.95;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3) !important;
}

/* Ensure modal-content fills the dialog when resized */
.modal-dialog[style*="height"] .modal-content {
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Settings modal — wider and height-constrained so it doesn't fill the page */
#settingsModal .modal-dialog {
    max-width: 900px;
}

#settingsModal .modal-content {
    max-height: 70vh;
    display: flex;
    flex-direction: column;
}

#settingsModal .modal-body {
    overflow-y: auto;
    flex: 1;
}

/* ==========================================================================
   TTS SPEAKER BUTTON STYLES (Global)
   ========================================================================== */

.speaker-btn {
    padding: 2px 6px;
    border-radius: var(--brand-radius-xs);
    font-size: 0.75rem;
    vertical-align: middle;
    transition: all 0.2s ease;
}

.speaker-btn:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.speaker-btn.playing {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.speaker-btn:disabled {
    opacity: 0.6;
    cursor: wait;
}

/* Enrichment card play all button */
.enrichment-play-all {
    transition: all 0.2s ease;
}

.enrichment-play-all:hover {
    transform: scale(1.1);
}

/* ==========================================================================
   COURSE MANAGEMENT DASHBOARD
   ========================================================================== */

#courseManagementTable {
    font-size: 0.875rem;
}

#courseManagementTable thead th {
    background: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    color: var(--color-base, #404041);
    padding: 12px 8px;
    position: sticky;
    top: 0;
    z-index: 10;
}

#courseManagementTable tbody tr {
    transition: background-color 0.15s ease;
}

#courseManagementTable tbody tr:hover {
    background-color: rgba(22, 63, 107, 0.04);
}

#courseManagementTable tbody td {
    padding: 10px 8px;
    vertical-align: middle;
    border-bottom: 1px solid #eee;
}

#courseManagementTable .badge {
    font-weight: 500;
}

#courseManagementTable .btn-sm {
    padding: 4px 8px;
    font-size: 0.75rem;
}

/* Course name link styling */
#courseManagementTable a {
    color: var(--color-primary, #163f6b);
    font-weight: 500;
}

#courseManagementTable a:hover {
    color: var(--color-primary-dark, #0d2845);
    text-decoration: underline !important;
}

/* Checkbox styling */
#courseManagementTable input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* Card footer styling */
.browser-overview .card-footer {
    background: #f8f9fa;
    border-top: 1px solid #eee;
}

/* Form switch in card header */
.browser-overview .form-check-input:checked {
    background-color: var(--color-primary, #163f6b);
    border-color: var(--color-primary, #163f6b);
}

/* Course Management card header */
.browser-overview .card-header {
    background: #fff;
    border-bottom: none;
    padding: 16px;
}

.browser-overview .card-header span {
    font-weight: 600;
    color: var(--color-base, #404041);
}

/* Course Management Filter Bar */
.course-filter-bar {
    background: #f8f9fa;
    padding: 12px;
    border-radius: var(--brand-radius-sm);
    margin-top: 12px;
}

.course-filter-bar .filter-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.course-filter-bar .filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.course-filter-bar .filter-label {
    font-size: 0.7rem;
    color: #666;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.course-filter-bar .form-select,
.course-filter-bar .form-control {
    min-width: 130px;
    font-size: 0.875rem;
}

.course-filter-bar .input-group {
    min-width: 200px;
}

/* Action buttons row */
.browser-overview .card-header .border-top {
    border-color: #eee !important;
}

#courseActionHint {
    color: #888;
}

/* ──────────────────────────────────────────────
   Marketing Hub — Edit Campaign / Add Goal Modals
   ────────────────────────────────────────────── */

.mh-edit-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
}

.mh-edit-modal {
    background: #fff;
    border-radius: var(--brand-radius-sm);
    padding: 1.5rem;
    width: 90%;
    max-width: 540px;
    box-shadow: var(--brand-shadow-lg);
}


/* ==========================================================================
   PROVENANCE — "Show Your Work" Badges & Modal
   ========================================================================== */

.provenance-badge {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 2px 8px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--brand-primary);
    background: color-mix(in srgb, var(--brand-primary) 8%, transparent);
    border: 1px solid color-mix(in srgb, var(--brand-primary) 20%, transparent);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    line-height: 1.4;
    vertical-align: middle;
}

.provenance-badge:hover {
    background: color-mix(in srgb, var(--brand-primary) 15%, transparent);
    border-color: color-mix(in srgb, var(--brand-primary) 40%, transparent);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.provenance-badge i {
    font-size: 0.7rem;
}

/* Summary bar in modal */
.prov-summary-bar .badge {
    font-size: 0.7rem;
    font-weight: 500;
}

/* Tab styling overrides within provenance modal */
#provenanceDetailModal .nav-tabs .nav-link {
    font-size: 0.8rem;
    padding: 0.4rem 0.75rem;
    color: var(--brand-text-muted, #6c757d);
}

#provenanceDetailModal .nav-tabs .nav-link.active {
    color: var(--brand-primary);
    font-weight: 600;
}

#provenanceDetailModal .table td {
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
}

#provenanceDetailModal .list-group-item {
    border: none;
    border-bottom: 1px solid var(--brand-border-color, #dee2e6);
}


/* ==========================================================================
   QUICK CREATE — Format Button Grid
   ========================================================================== */

.qc-format-btn {
    padding: 0.75rem 0.5rem;
    text-align: center;
    transition: all 0.15s ease;
    border-color: var(--brand-border-color, #dee2e6);
}

.qc-format-btn:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    background: color-mix(in srgb, var(--brand-primary) 5%, transparent);
}

.qc-format-btn.btn-brand-primary {
    border-color: var(--brand-primary);
    background: var(--brand-primary);
    color: #fff;
}

.qc-format-btn i {
    transition: transform 0.15s ease;
}

.qc-format-btn:hover i {
    transform: scale(1.1);
}