/* Documents - Document List, Pages, Sections, Page Viewer */

/* Documents Layout */
.documents-layout { display: flex; gap: 20px; }
.documents-list { flex: 1; min-width: 300px; max-height: 600px; overflow-y: auto; }
.documents-list .document-item { margin-bottom: 8px; cursor: pointer; padding: 14px; }
.documents-list .document-item.selected { background: rgba(119,95,255,0.1); border: 2px solid var(--primary); }
.document-item { padding: 16px; background: var(--light-bg); border-radius: 12px; margin-bottom: 10px; cursor: pointer; transition: all 0.2s; border-left: 4px solid var(--primary); border: 1px solid var(--light-border); }
.document-item:hover { background: rgba(119,95,255,0.05); transform: translateX(4px); }
.document-item.expanded { background: var(--light-card); border: 1px solid var(--primary-light); }
.document-header { display: flex; justify-content: space-between; align-items: center; }
.document-title { font-weight: 600; display: flex; align-items: center; gap: 8px; }
.document-meta { font-size: 0.85em; color: var(--text-secondary); }
.document-details-panel { flex: 1; min-width: 400px; background: var(--light-bg); border-radius: 12px; padding: 24px; max-height: 600px; overflow-y: auto; border: 1px solid var(--light-border); }
.document-details-panel.empty { display: flex; align-items: center; justify-content: center; color: var(--text-muted); }

/* Page Viewer Panel */
.documents-with-viewer { display: flex; gap: 20px; }
.documents-panel { flex: 1; min-width: 350px; max-height: 700px; overflow-y: auto; }
.page-viewer-panel {
    flex: 1;
    min-width: 400px;
    max-width: 600px;
    background: var(--dark-navy);
    border-radius: 12px;
    border: 1px solid var(--light-border);
    display: flex;
    flex-direction: column;
    min-height: 500px;
    max-height: 700px;
    overflow: hidden;
    position: sticky;
    top: 80px;
}
.page-viewer-header {
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: white;
    font-size: 0.9em;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.page-viewer-header .page-num { font-weight: 600; }
.page-viewer-header .page-title { opacity: 0.7; font-size: 0.9em; }
.page-viewer-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding: 16px;
}
.viewer-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.viewer-empty {
    color: rgba(255,255,255,0.4);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.viewer-empty-icon { font-size: 3em; margin-bottom: 12px; }
.page-viewer-panel .loader-container { background: transparent; }
.page-viewer-panel .loader { border-color: rgba(255,255,255,0.2); border-top-color: var(--primary); }

/* Page View Button */
.page-view-btn {
    padding: 4px 12px;
    font-size: 0.75em;
    font-weight: 600;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}
.page-view-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

/* Detail Views */
.detail-header { margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--light-border); }
.detail-header h3 { margin: 0 0 10px 0; color: var(--text-primary); }
.detail-meta { display: flex; gap: 15px; flex-wrap: wrap; font-size: 0.9em; color: var(--text-secondary); }
.detail-meta span { display: flex; align-items: center; gap: 5px; }
.detail-actions { display: flex; gap: 10px; margin-top: 15px; flex-wrap: wrap; }

/* Pages */
.pages-container { margin-top: 15px; padding-top: 15px; border-top: 1px solid var(--light-border); }
.pages-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 15px; margin-top: 10px; }
.page-card { background: var(--light-card); border: 1px solid var(--light-border); border-radius: 12px; overflow: hidden; transition: all 0.2s; cursor: pointer; }
.page-card:hover { box-shadow: 0 8px 25px rgba(119,95,255,0.15), 0 4px 10px rgba(0,0,0,0.08); transform: translateY(-3px); border-color: rgba(119,95,255,0.3); }
.page-image { width: 100%; height: 150px; background: var(--light-bg); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.page-image img { max-width: 100%; max-height: 100%; object-fit: contain; }
.page-image .placeholder { color: var(--text-muted); font-size: 3em; }
.page-info { padding: 12px; }
.page-info .page-title { font-weight: 600; font-size: 0.9em; margin-bottom: 5px; }
.page-info .page-summary { font-size: 0.8em; color: var(--text-secondary); line-height: 1.4; max-height: 60px; overflow: hidden; }
.page-info .page-models { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 4px; }
.page-status { font-size: 0.75em; padding: 3px 8px; border-radius: 20px; font-weight: 600; }
.page-status.Processed { background: rgba(16,185,129,0.1); color: var(--success); }
.page-status.NotProcessed { background: var(--light-bg); color: var(--text-muted); }
.page-status.Processing { background: rgba(119,95,255,0.1); color: var(--primary); animation: pulse 1.5s infinite; }
.page-status.Error { background: rgba(239,68,68,0.1); color: var(--danger); }
.page-processing-info { font-size: 0.8em; color: var(--text-secondary); margin-top: 8px; padding: 8px; background: var(--light-bg); border-radius: 6px; }
.page-error { color: var(--danger); background: rgba(239,68,68,0.1); padding: 10px; border-radius: 8px; margin-top: 8px; font-size: 0.85em; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Page Accordion */
.pages-accordion { margin-top: 10px; }
.page-accordion-item { background: var(--light-card); border: 1px solid var(--light-border); border-radius: 10px; margin-bottom: 8px; overflow: hidden; }
.page-accordion-header { display: flex; align-items: center; padding: 14px 16px; cursor: pointer; transition: background 0.2s; gap: 10px; }
.page-accordion-header:hover { background: var(--light-bg); }
.page-accordion-header .expand-icon { transition: transform 0.2s; color: var(--text-muted); }
.page-accordion-header.expanded .expand-icon { transform: rotate(90deg); }
.page-accordion-header .page-thumb { width: 40px; height: 50px; background: var(--light-bg); border-radius: 6px; display: flex; align-items: center; justify-content: center; overflow: hidden; flex-shrink: 0; }
.page-accordion-header .page-thumb img { max-width: 100%; max-height: 100%; object-fit: cover; }
.page-accordion-header .page-info { flex: 1; }
.page-accordion-header .page-title { font-weight: 600; font-size: 0.95em; }
.page-accordion-header .page-subtitle { font-size: 0.8em; color: var(--text-secondary); margin-top: 2px; }
.page-accordion-content { display: none; padding: 16px; border-top: 1px solid var(--light-border); background: var(--light-bg); }
.page-accordion-content.expanded { display: block; }
.page-detail-image { text-align: center; margin-bottom: 15px; }
.page-detail-image img { max-width: 100%; max-height: 300px; border-radius: 8px; box-shadow: var(--shadow-md); }
.page-detail-section { margin-bottom: 15px; }
.page-detail-section h4 { font-size: 0.85em; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.page-detail-section p { font-size: 0.9em; color: var(--text-primary); line-height: 1.5; }

/* Content Sections */
.content-sections { margin-top: 15px; border-top: 1px solid var(--light-border); padding-top: 15px; }
.content-sections h5 { font-size: 0.85em; color: var(--text-secondary); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.content-section-item { background: var(--light-card); border: 1px solid var(--light-border); border-radius: 10px; padding: 14px; margin-bottom: 8px; }
.content-section-item:last-child { margin-bottom: 0; }
.content-section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.content-section-type { font-size: 0.75em; padding: 3px 10px; border-radius: 20px; font-weight: 600; }
.content-section-type.Diagram { background: rgba(16,185,129,0.1); color: var(--success); }
.content-section-type.PartsList { background: rgba(245,158,11,0.1); color: var(--warning); }
.content-section-type.Photo { background: rgba(177,216,252,0.3); color: #1565c0; }
.content-section-type.Table { background: rgba(245,177,252,0.2); color: #7b1fa2; }
.content-section-type.Text { background: var(--light-bg); color: var(--text-secondary); }
.content-section-type.Other { background: var(--light-bg); color: var(--text-secondary); }
.content-section-title { font-weight: 600; font-size: 0.9em; color: var(--text-primary); }
.content-section-content { font-size: 0.85em; color: var(--text-secondary); margin-top: 8px; line-height: 1.5; max-height: 100px; overflow-y: auto; white-space: pre-wrap; }
.content-section-summary { font-size: 0.8em; color: var(--text-secondary); font-style: italic; margin-top: 6px; }
.content-section-models { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 4px; }
.content-section-models .model-tag { font-size: 0.7em; padding: 3px 8px; }

/* Page Modal Info Grid */
.page-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}
.page-info-item {
    padding: 12px;
    background: var(--light-bg);
    border-radius: 8px;
}
.page-info-item.page-info-full {
    grid-column: span 2;
}
.page-info-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.page-info-value {
    font-size: 14px;
    color: var(--text-primary);
}
.page-modal-actions {
    display: flex;
    gap: 10px;
    padding-top: 20px;
    border-top: 1px solid var(--light-border);
}

/* Verify Modal Meta & Badges */
.verify-section-meta {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}
.verify-type-badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}
.verify-type-badge.Diagram { background: rgba(16,185,129,0.12); color: #059669; }
.verify-type-badge.PartsList { background: rgba(245,158,11,0.12); color: #d97706; }
.verify-type-badge.Photo { background: rgba(59,130,246,0.12); color: #2563eb; }
.verify-type-badge.Table { background: rgba(139,92,246,0.12); color: #7c3aed; }
.verify-type-badge.Text { background: rgba(107,114,128,0.12); color: #4b5563; }
.verify-type-badge.Other { background: rgba(107,114,128,0.12); color: #4b5563; }

/* Detail Modal Styles */
.detail-modal {
    max-width: 700px;
    width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    padding: 0;
}
.detail-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px 24px;
    border-bottom: 1px solid var(--light-border);
    flex-shrink: 0;
}
.detail-modal-title {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}
.detail-modal-icon { font-size: 28px; flex-shrink: 0; }
.detail-modal-title h3 { margin: 0 0 4px 0; font-size: 18px; color: var(--text-primary); }
.detail-modal-subtitle { font-size: 13px; color: var(--text-muted); }
.detail-modal-body { flex: 1; overflow-y: auto; padding: 20px 24px; }
.detail-section { margin-bottom: 20px; }
.detail-section:last-child { margin-bottom: 0; }
.detail-section h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.detail-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}
.detail-content-box { background: var(--light-bg); border-radius: 8px; padding: 14px; }
.detail-content-text { font-size: 13px; color: var(--text-primary); line-height: 1.6; white-space: pre-wrap; }
.detail-meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.detail-meta-item { background: var(--light-bg); padding: 12px; border-radius: 8px; }
.detail-meta-label { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.detail-meta-value { font-size: 14px; font-weight: 500; color: var(--text-primary); }
.detail-image-container { background: var(--dark-navy); border-radius: 8px; padding: 16px; text-align: center; }
.detail-image { max-width: 100%; max-height: 400px; object-fit: contain; border-radius: 4px; }
.models-list { display: flex; flex-wrap: wrap; gap: 6px; }

/* Preview Empty State */
.preview-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
}
.preview-empty-icon { font-size: 48px; opacity: 0.3; margin-bottom: 12px; }
.preview-empty-text { font-size: 13px; }
.preview-image-container {
    background: var(--dark-navy);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 16px;
    text-align: center;
}
.preview-image { max-width: 100%; max-height: 300px; object-fit: contain; border-radius: 4px; }

/* Preview Metadata */
.preview-meta { background: var(--light-bg); border-radius: 8px; padding: 12px; margin-bottom: 16px; }
.preview-meta-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 12px;
    border-bottom: 1px solid var(--light-border);
}
.preview-meta-row:last-child { border-bottom: none; }
.preview-meta-label { color: var(--text-muted); }
.preview-meta-value { font-weight: 500; color: var(--text-primary); }
.preview-actions { display: flex; gap: 8px; margin-top: 16px; }
.preview-actions button { flex: 1; padding: 10px; font-size: 12px; }

/* Parts List Preview */
.parts-list-preview { max-height: 400px; overflow-y: auto; }
.parts-table { width: 100%; font-size: 12px; border-collapse: collapse; }
.parts-table th {
    text-align: left;
    padding: 8px 10px;
    background: var(--light-bg);
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--light-border);
    position: sticky;
    top: 0;
}
.parts-table td { padding: 8px 10px; border-bottom: 1px solid var(--light-border); color: var(--text-primary); }
.parts-table tr:hover td { background: rgba(119,95,255,0.04); }
.part-number { font-family: 'SF Mono', Consolas, monospace; font-weight: 500; color: var(--primary); }

/* Page Image Modal (Legacy) */
.page-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.page-modal.visible { opacity: 1; visibility: visible; }
.page-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: rgba(0,0,0,0.5);
    color: white;
}
.page-modal-title { font-size: 16px; font-weight: 500; }
.page-modal-controls { display: flex; gap: 12px; align-items: center; }
.page-modal-controls button {
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}
.page-modal-controls button:hover { background: rgba(255,255,255,0.2); }
.page-modal-close { font-size: 24px; padding: 8px 12px !important; }
.page-modal-body {
    flex: 1;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.page-modal-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.2s;
    cursor: zoom-in;
}
.page-modal-image.zoomed { max-width: none; max-height: none; cursor: zoom-out; }

/* ========== 3-Panel Document Layout ========== */
.docs-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 0;
    height: calc(100vh - 200px);
    min-height: 500px;
    background: var(--light-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--light-border);
}

/* Left Panel - Document List */
.docs-nav-panel {
    background: var(--light-card);
    border-right: 1px solid var(--light-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.docs-nav-header {
    padding: 16px;
    border-bottom: 1px solid var(--light-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.docs-nav-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}
.docs-nav-header .doc-count {
    font-size: 11px;
    background: var(--light-bg);
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--text-muted);
}
.docs-nav-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

/* Document Nav Item */
.doc-nav-item {
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 4px;
    transition: all 0.15s;
    border: 1px solid transparent;
}
.doc-nav-item:hover {
    background: rgba(119,95,255,0.08);
    box-shadow: 0 2px 8px rgba(119,95,255,0.1);
}
.doc-nav-item.selected {
    background: rgba(119,95,255,0.1);
    border-color: var(--primary);
}
.doc-nav-item .doc-nav-header {
    display: flex;
    align-items: center;
    gap: 10px;
}
.doc-nav-item .doc-nav-icon {
    font-size: 20px;
    flex-shrink: 0;
}
.doc-nav-item .doc-nav-info {
    flex: 1;
    min-width: 0;
}
.doc-nav-item .doc-nav-title {
    font-weight: 500;
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}
.doc-nav-item .doc-nav-meta {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.doc-nav-item .doc-nav-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.doc-nav-item .doc-nav-status.processed { background: var(--success); }
.doc-nav-item .doc-nav-status.pending { background: var(--warning); }
.doc-nav-item .doc-nav-status.error { background: var(--danger); }
.doc-nav-item .doc-nav-status.skipped { background: #94a3b8; }

/* Skipped Documents */
.doc-nav-item.skipped {
    opacity: 0.7;
    background: rgba(148, 163, 184, 0.08);
}
.doc-nav-item.skipped:hover {
    opacity: 0.9;
    background: rgba(148, 163, 184, 0.15);
}
.doc-nav-item.skipped.selected {
    opacity: 1;
    background: rgba(148, 163, 184, 0.2);
    border-color: #94a3b8;
}
.skip-badge {
    font-size: 9px;
    padding: 2px 6px;
    background: rgba(148, 163, 184, 0.2);
    color: #64748b;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}

/* Skip Banner in Document Detail */
.skip-banner {
    background: linear-gradient(135deg, rgba(148, 163, 184, 0.15) 0%, rgba(148, 163, 184, 0.08) 100%);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 10px;
    padding: 16px 20px;
    margin: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.skip-banner-content {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}
.skip-banner-icon {
    font-size: 28px;
    flex-shrink: 0;
}
.skip-banner-info {
    flex: 1;
}
.skip-banner-info strong {
    display: block;
    font-size: 14px;
    color: #475569;
    margin-bottom: 4px;
}
.skip-banner-info p {
    font-size: 13px;
    color: #64748b;
    margin: 0;
    line-height: 1.5;
}
.skip-banner-date {
    display: block;
    font-size: 11px;
    color: #94a3b8;
    margin-top: 6px;
}

/* Center Panel - Document Details */
.docs-main-panel {
    background: var(--light-bg);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* Document Header */
.doc-detail-header {
    background: var(--light-card);
    padding: 20px 24px;
    border-bottom: 1px solid var(--light-border);
    flex-shrink: 0;
}
.doc-detail-title-row {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}
.doc-detail-icon {
    font-size: 32px;
    flex-shrink: 0;
}
.doc-detail-title-info {
    flex: 1;
    min-width: 0;
}
.doc-detail-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px 0;
    word-break: break-word;
}
.doc-detail-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.doc-detail-subtitle .separator {
    color: var(--light-border);
}
.doc-detail-subtitle .doc-filename {
    font-family: monospace;
    font-size: 12px;
    background: var(--bg-subtle);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--text-secondary);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.doc-detail-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}
.doc-detail-actions button {
    padding: 8px 14px;
    font-size: 12px;
}
.reprocess-select {
    padding: 6px 10px;
    font-size: 12px;
    border: 1px solid var(--light-border);
    border-radius: 6px;
    background: var(--light-card);
    color: var(--text-primary);
    cursor: pointer;
    outline: none;
}
.reprocess-select:hover {
    border-color: var(--primary);
}
.reprocess-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(119, 95, 255, 0.15);
}

/* Document Metadata Row */
.doc-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 12px;
}
.doc-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
}
.doc-meta-item .label {
    color: var(--text-muted);
}
.doc-meta-item .value {
    font-weight: 500;
    color: var(--text-primary);
}

/* Models Tags */
.doc-detail-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}
.doc-detail-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    flex-shrink: 0;
}
.doc-detail-models {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.doc-detail-models.linked .model-tag.linked {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border-color: rgba(16, 185, 129, 0.3);
}

/* Pages/Sections Container */
.doc-content-area {
    flex: 1;
    overflow-y: auto;
    padding: 16px 24px;
}

/* Page Accordion - 3-Panel Layout */
.page-accordion {
    background: var(--light-card);
    border-radius: 10px;
    border: 1px solid var(--light-border);
    margin-bottom: 8px;
    overflow: hidden;
}
.page-accordion-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    cursor: pointer;
    transition: background 0.15s;
    user-select: none;
}
.page-accordion-header:hover {
    background: rgba(119,95,255,0.06);
    box-shadow: 0 2px 6px rgba(119,95,255,0.08);
}
.page-accordion-arrow {
    color: var(--text-muted);
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.15s;
    margin-left: 8px;
}
.page-accordion-header:hover .page-accordion-arrow {
    opacity: 1;
}
.page-accordion.expanded .page-accordion-header {
    border-bottom: 1px solid var(--light-border);
    background: var(--light-bg);
}
.page-accordion-chevron {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform 0.2s;
    width: 16px;
    text-align: center;
}
.page-accordion.expanded .page-accordion-chevron {
    transform: rotate(90deg);
}
.page-accordion-icon {
    font-size: 18px;
}
.page-accordion-info {
    flex: 1;
    min-width: 0;
}
.page-accordion-title {
    font-weight: 500;
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.page-accordion-summary {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.page-accordion-badges {
    display: flex;
    gap: 6px;
    align-items: center;
}
.page-badge {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: 600;
}
.page-badge.sections {
    background: rgba(119,95,255,0.1);
    color: var(--primary);
}
.page-badge.status {
    background: rgba(16,185,129,0.1);
    color: var(--success);
}
.page-badge.status.error {
    background: rgba(239,68,68,0.1);
    color: var(--danger);
}

/* Page Content (Sections) - 3-Panel */
.page-accordion-content {
    display: none;
    padding: 12px 16px;
    background: var(--light-bg);
}
.page-accordion.expanded .page-accordion-content {
    display: block;
}

/* Section Card */
.section-card {
    background: var(--light-card);
    border-radius: 8px;
    border: 1px solid var(--light-border);
    padding: 12px 14px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.section-card:hover {
    border-color: rgba(119,95,255,0.4);
    box-shadow: 0 6px 20px rgba(119,95,255,0.18), 0 3px 8px rgba(0,0,0,0.06);
    transform: translateY(-2px);
}
.section-card.selected {
    border-color: var(--primary);
    background: rgba(119,95,255,0.04);
}
.section-card-icon {
    font-size: 20px;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-bg);
    border-radius: 6px;
}
.section-card-content {
    flex: 1;
    min-width: 0;
}
.section-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}
.section-card-type {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}
.section-card-type.Diagram { background: rgba(16,185,129,0.12); color: #059669; }
.section-card-type.PartsList { background: rgba(245,158,11,0.12); color: #d97706; }
.section-card-type.Photo { background: rgba(59,130,246,0.12); color: #2563eb; }
.section-card-type.Table { background: rgba(139,92,246,0.12); color: #7c3aed; }
.section-card-type.Text { background: rgba(107,114,128,0.12); color: #4b5563; }
.section-card-type.Other { background: rgba(107,114,128,0.12); color: #4b5563; }
.embedding-badge {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
}
.embedding-badge.has-embedding {
    background: rgba(16,185,129,0.12);
    color: #059669;
}
.embedding-badge.no-embedding {
    background: rgba(245,158,11,0.12);
    color: #d97706;
}
.section-card-title {
    font-weight: 500;
    font-size: 13px;
    color: var(--text-primary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.section-card-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.section-card-models {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}
.section-card-models .model-tag {
    font-size: 9px;
    padding: 2px 6px;
}
.section-card-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}
.section-card-label {
    font-size: 9px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    flex-shrink: 0;
}
.section-card-models.linked .model-tag.linked {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border-color: rgba(16, 185, 129, 0.3);
}
.section-card-models .model-tag.expandable {
    cursor: pointer;
    background: rgba(119, 95, 255, 0.1);
    color: var(--primary);
    border-color: rgba(119, 95, 255, 0.3);
    font-weight: 500;
}
.section-card-models .model-tag.expandable:hover {
    background: rgba(119, 95, 255, 0.2);
    border-color: rgba(119, 95, 255, 0.5);
}

/* Verify Modal Models */
.verify-models-container {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.verify-models-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.verify-models-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 500;
    flex-shrink: 0;
}
.verify-models-container .section-card-models .model-tag {
    font-size: 11px;
    padding: 3px 8px;
}

.section-card-arrow {
    color: var(--text-muted);
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.15s;
}
.section-card:hover .section-card-arrow {
    opacity: 1;
}

/* Responsive - Documents Layout */
@media (max-width: 768px) {
    .docs-layout {
        grid-template-columns: 1fr;
        height: auto;
    }
    .docs-nav-panel {
        border: none;
        max-height: 300px;
    }
}

/* Highlight animation for navigation */
.section-card.highlight {
    animation: highlight-pulse 2s ease-out;
}

@keyframes highlight-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(119, 95, 255, 0.6);
        background-color: rgba(119, 95, 255, 0.15);
    }
    50% {
        box-shadow: 0 0 8px 4px rgba(119, 95, 255, 0.3);
        background-color: rgba(119, 95, 255, 0.1);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(119, 95, 255, 0);
        background-color: transparent;
    }
}

/* ========== Dark Mode Overrides ========== */
/* Page viewer needs extra dark background for contrast with white documents */
:root.dark-mode .page-viewer-panel {
    background: #0a0817;
}

:root.dark-mode .page-viewer-header {
    background: rgba(26, 23, 56, 0.5);
}

/* Embedding badges in dark mode */
:root.dark-mode .embedding-badge.has-embedding {
    background: rgba(34,197,94,0.15);
    color: #22c55e;
}

:root.dark-mode .embedding-badge.no-embedding {
    background: rgba(251,191,36,0.15);
    color: #fbbf24;
}