/* ============================================
   DFA Documentation - Modern Theme
   Version: 2.0
   ============================================ */

/* --- CSS Variables & Theme --- */
:root {
    /* Primary palette - Slate blue professional */
    --color-primary: #475569;
    --color-primary-light: #64748b;
    --color-primary-dark: #334155;
    
    /* Accent colors - Complementary */
    --color-accent: #0ea5e9;
    --color-accent-light: #38bdf8;
    --color-accent-dark: #0284c7;
    
    /* Semantic colors */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-success-dark: #059669;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-warning-dark: #d97706;
    
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-danger-dark: #dc2626;
    
    --color-info: #6366f1;
    --color-info-light: #e0e7ff;
    --color-info-dark: #4f46e5;
    
    /* Neutrals */
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-alt: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    
    /* Text */
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-text-inverse: #ffffff;
    
    /* Type badges - Distinct colors for module types */
    --color-docformat: #8b5cf6;
    --color-formatgroup: #0ea5e9;
    --color-include: #f97316;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
  }
  
  /* Dark mode */
  [data-theme="dark"] {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-surface-alt: #334155;
    --color-border: #334155;
    --color-border-light: #475569;
    
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-primary: #94a3b8;
    --color-primary-light: #cbd5e1;
    
    --color-success-light: #064e3b;
    --color-warning-light: #451a03;
    --color-danger-light: #450a0a;
    --color-info-light: #1e1b4b;
  }
  
  /* --- Base Reset --- */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    font-size: 16px;
    scroll-behavior: smooth;
  }
  
  body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  /* --- Typography --- */
  h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
  }
  
  h1 {
    font-size: 1.875rem;
    letter-spacing: -0.025em;
  }
  
  h2 {
    font-size: 1.25rem;
    letter-spacing: -0.015em;
  }
  
  h3 {
    font-size: 1rem;
    font-weight: 500;
  }
  
  p {
    color: var(--color-text-secondary);
  }
  
  a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
  }
  
  a:hover {
    color: var(--color-accent-dark);
  }
  
  /* --- Layout --- */
  .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
  }
  
  .page-wrapper {
    padding: var(--space-xl) 0;
  }
  
  /* --- Header --- */
  .site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.95);
  }
  
  [data-theme="dark"] .site-header {
    background: rgba(30, 41, 59, 0.95);
  }
  
  .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
  }
  
  .site-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
  }
  
  .site-title svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
  }
  
  .header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }
  
  .theme-toggle {
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
  }
  
  .theme-toggle:hover {
    background: var(--color-border);
  }
  
  .theme-toggle svg {
    width: 18px;
    height: 18px;
    color: var(--color-text-secondary);
  }
  
  /* --- Breadcrumb --- */
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
  }
  
  .breadcrumb a {
    color: var(--color-text-secondary);
  }
  
  .breadcrumb a:hover {
    color: var(--color-accent);
  }
  
  .breadcrumb-separator {
    color: var(--color-text-muted);
  }
  
  .breadcrumb-current {
    color: var(--color-text);
    font-weight: 500;
  }
  
  /* --- Page Title --- */
  .page-title {
    margin-bottom: var(--space-xl);
  }
  
  .page-title h1 {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }
  
  .page-title .subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-top: var(--space-xs);
  }
  
  /* --- Cards --- */
  .card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
  
  .card-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
  }
  
  .card-header h2 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: 0;
  }
  
  .card-header .icon {
    width: 18px;
    height: 18px;
    color: var(--color-text-muted);
  }
  
  .card-body {
    padding: var(--space-lg);
  }
  
  .card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-alt);
  }
  
  /* Card variants */
  .card--accent-left {
    border-left: 3px solid var(--color-accent);
  }
  
  .card--success {
    border-left-color: var(--color-success);
  }
  
  .card--warning {
    border-left-color: var(--color-warning);
  }
  
  .card--danger {
    border-left-color: var(--color-danger);
  }
  
  .card--info {
    border-left-color: var(--color-info);
  }
  
  /* --- Metrics Grid --- */
  .metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
  }
  
  .metric-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    transition: all var(--transition-fast);
  }
  
  .metric-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
  }
  
  .metric-card .metric-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-sm);
  }
  
  .metric-card .metric-icon svg {
    width: 20px;
    height: 20px;
  }
  
  .metric-card .metric-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-text);
  }
  
  .metric-card .metric-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
  }
  
  /* Metric variants */
  .metric-card--primary .metric-icon {
    background: var(--color-accent-light);
    color: var(--color-accent-dark);
  }
  
  .metric-card--success .metric-icon {
    background: var(--color-success-light);
    color: var(--color-success-dark);
  }
  
  .metric-card--warning .metric-icon {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
  }
  
  .metric-card--danger .metric-icon {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
  }
  
  /* --- Heatmap Grid --- */
  .heatmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
  }
  
  .heatmap-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: visible;
  }
  
  .heatmap-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
  }
  
  .heatmap-card--low::before {
    background: var(--color-success);
  }
  
  .heatmap-card--medium::before {
    background: var(--color-warning);
  }
  
  .heatmap-card--high::before {
    background: var(--color-danger);
  }
  
  .heatmap-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
  }
  
  .heatmap-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
  }
  
  .heatmap-stat {
    text-align: center;
    padding: var(--space-sm);
    background: var(--color-surface-alt);
    border-radius: var(--radius-sm);
  }
  
  .heatmap-stat .stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
  }
  
  .heatmap-stat .stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .complexity-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
  }
  
  /* --- Badges & Tags --- */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.125em 0.375em;
    font-size: 0.65rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
  }
  
  .badge--simple {
    background: var(--color-success-light);
    color: var(--color-success-dark);
  }
  
  .badge--medium {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
  }
  
  .badge--high, .badge--complex {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
  }
  
  .badge--low {
    background: var(--color-success-light);
    color: var(--color-success-dark);
  }
  
  /* Type badges */
  .type-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.125em 0.375em;
    font-size: 0.65rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    white-space: nowrap;
  }
  
  .type-badge--docformat {
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-docformat);
  }
  
  .type-badge--formatgroup {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-formatgroup);
  }
  
  .type-badge--include {
    background: rgba(249, 115, 22, 0.1);
    color: var(--color-include);
  }
  
  /* Risk badges */
  .risk-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
  }
  
  .risk-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
  }
  
  .risk-indicator--critical { background: #dc2626; }
  .risk-indicator--high { background: var(--color-warning); }
  .risk-indicator--medium { background: #fbbf24; }
  .risk-indicator--low { background: var(--color-success); }
  
  /* --- Filters --- */
  .filters-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-border);
  }
  
  .filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
  }
  
  .filter-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
  }
  
  .filter-select {
    appearance: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-lg) var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    color: var(--color-text);
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    min-width: 140px;
  }
  
  .filter-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
  }
  
  .filter-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
  }
  
  .filter-btn--danger {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
    border-color: var(--color-danger);
  }
  
  .filter-btn--danger:hover {
    background: var(--color-danger);
    color: white;
  }
  
  /* --- Data Table --- */
  .data-table-wrapper {
    overflow-x: auto;
  }
  
  .data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
  }
  
  .data-table th,
  .data-table td {
    text-align: left;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
  }
  
  .data-table th {
    background: var(--color-surface-alt);
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
  }

.data-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.data-table th.sortable:hover {
  background: var(--color-border-light);
  color: var(--color-text);
}

.data-table th.sortable .sort-indicator {
  display: inline-block;
  margin-left: 0.25rem;
  font-size: 0.75em;
  opacity: 0.8;
}
  
  .data-table tbody tr {
    transition: background var(--transition-fast);
  }
  
  .data-table tbody tr:hover {
    background: var(--color-surface-alt);
  }
  
  .data-table .col-module {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    max-width: 180px;
    word-break: break-all;
  }
  
  /* Type column - minimal width */
  .data-table th:nth-child(2),
  .data-table td:nth-child(2) {
    width: 1%;
    white-space: nowrap;
    padding: var(--space-sm) var(--space-xs);
  }

  /* Complexity column - minimal width */
  .data-table th:nth-child(3),
  .data-table td:nth-child(3) {
    width: 1%;
    white-space: nowrap;
    padding: var(--space-sm) var(--space-xs);
  }

  /* Quality column - minimal width */
  .data-table th:nth-child(4),
  .data-table td:nth-child(4) {
    width: 1%;
    white-space: nowrap;
    padding: var(--space-sm) var(--space-xs);
    text-align: center;
  }

  /* Actions column - minimal width */
  .data-table th:nth-child(7),
  .data-table td:nth-child(7) {
    width: 1%;
  }
  
  .data-table .col-function {
    max-width: 280px;
    min-width: 200px;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    line-height: 1.4;
  }
  
  .data-table .col-risks {
    max-width: 250px;
    min-width: 180px;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.4;
  }
  
  .data-table .col-actions {
    text-align: right;
    white-space: nowrap;
  }
  
  /* --- Buttons --- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    text-decoration: none;
  }
  
  .btn--primary {
    background: var(--color-accent);
    color: white;
  }
  
  .btn--primary:hover {
    background: var(--color-accent-dark);
    color: white;
  }
  
  .btn--outline {
    background: transparent;
    border-color: var(--color-border);
    color: var(--color-text-secondary);
  }
  
  .btn--outline:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-accent);
    color: var(--color-accent);
  }
  
  .btn--sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
  }
  
  /* --- Section divider --- */
  .section {
    margin-bottom: var(--space-xl);
  }
  
  .section-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
  }
  
  .section-header h2 {
    margin: 0;
  }
  
  .section-header .icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
  }
  
  /* --- Insights grid --- */
  .insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-md);
  }
  
  .insight-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
  }
  
  .insight-card h3 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-size: 0.9375rem;
  }
  
  .insight-card .icon {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
  }
  
  /* Coupling indicator */
  .coupling-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    margin-bottom: var(--space-md);
  }
  
  .coupling-indicator--low {
    background: var(--color-success-light);
    color: var(--color-success-dark);
  }
  
  .coupling-indicator--medium {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
  }
  
  .coupling-indicator--high {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
  }
  
  .coupling-breakdown {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  
  .coupling-tag {
    font-size: 0.8125rem;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-surface-alt);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
  }
  
  /* Simple table */
  .simple-table {
    width: 100%;
    font-size: 0.875rem;
  }
  
  .simple-table th,
  .simple-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
  }
  
  .simple-table th {
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-surface-alt);
  }
  
  .simple-table td {
    color: var(--color-text);
  }
  
  /* --- Responsive --- */
  @media (max-width: 768px) {
    :root {
      --space-lg: 1rem;
      --space-xl: 1.5rem;
    }
    
    .container {
      padding: 0 var(--space-md);
    }
    
    .metrics-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .heatmap-grid {
      grid-template-columns: 1fr;
    }
    
    .insights-grid {
      grid-template-columns: 1fr;
    }
    
    .filters-bar {
      flex-direction: column;
      align-items: stretch;
    }
    
    .filter-group {
      flex-direction: column;
      align-items: stretch;
    }
    
    .filter-select {
      width: 100%;
    }
    
    .data-table {
      font-size: 0.8125rem;
    }
    
    .data-table th,
    .data-table td {
      padding: var(--space-sm);
    }
    
    .data-table .col-risks {
      display: none;
    }
  }
  
  @media (max-width: 480px) {
    .metrics-grid {
      grid-template-columns: 1fr;
    }
    
    .metric-card {
      flex-direction: row;
      align-items: center;
      gap: var(--space-md);
    }
    
    .metric-card .metric-icon {
      margin-bottom: 0;
    }
    
    .header-content {
      flex-direction: column;
      align-items: flex-start;
    }
  }

  /* --- Tooltips --- */
  [data-tooltip] {
    position: relative;
    cursor: help;
  }

  [data-tooltip]::before,
  [data-tooltip]::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 1000;
    pointer-events: none;
  }

  [data-tooltip]::before {
    content: '';
    border: 6px solid transparent;
    border-bottom-color: var(--color-surface);
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: -6px;
  }

  [data-tooltip]::after {
    content: attr(data-tooltip);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.5;
    padding: var(--space-sm) var(--space-md);
    white-space: normal;
    width: max-content;
    max-width: 280px;
    text-align: left;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
  }

  [data-tooltip]:hover::before,
  [data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
  }

  /* Tooltip variants for badges - position below by default */
  .badge[data-tooltip]::before {
    border-bottom-color: transparent;
    border-top-color: var(--color-surface);
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: -6px;
  }

  .badge[data-tooltip]::after {
    bottom: auto;
    top: calc(100% + 8px);
  }

  /* Tooltips for complexity badges in heatmap cards - position ABOVE to avoid clipping */
  .complexity-tags .badge[data-tooltip]::before {
    border-top-color: transparent;
    border-bottom-color: var(--color-surface);
    top: auto;
    bottom: 100%;
    margin-top: 0;
    margin-bottom: -6px;
  }

  .complexity-tags .badge[data-tooltip]::after {
    top: auto;
    bottom: calc(100% + 8px);
  }

  /* Glossary link button in header */
  .glossary-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
  }

  .glossary-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
  }

  .glossary-link svg {
    width: 16px;
    height: 16px;
  }

  /* --- Grade Badges --- */
  .grade-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.75em;
    padding: 0.125em 0.5em;
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
  }

  .grade-badge--lg {
    font-size: 1.5rem;
    min-width: 2em;
    padding: 0.25em 0.625em;
    border-radius: var(--radius-md);
  }

  .grade-badge--a {
    background: var(--color-success-light);
    color: var(--color-success-dark);
  }

  .grade-badge--b {
    background: var(--color-info-light);
    color: var(--color-info-dark);
  }

  .grade-badge--c {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
  }

  .grade-badge--d {
    background: #fff7ed;
    color: #c2410c;
  }

  .grade-badge--f {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
  }

  [data-theme="dark"] .grade-badge--d {
    background: #431407;
    color: #fb923c;
  }

  /* --- Quality Metric Card --- */
  .metric-card--quality .metric-icon {
    background: var(--color-info-light);
    color: var(--color-info-dark);
  }

  .metric-card--quality .metric-value {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
  }

  .metric-card--quality .metric-value .grade-badge {
    font-size: 1.75rem;
    padding: 0.1em 0.4em;
  }

  /* --- Quality Assessment Section (Detail page) --- */
  .quality-overview {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
  }

  .quality-score-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
  }

  .quality-dimensions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .quality-dimension-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
  }

  .quality-dimension-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
  }

  .quality-dimension-value {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
  }

  .quality-progress {
    height: 8px;
    background: var(--color-surface-alt);
    border-radius: 4px;
    overflow: hidden;
  }

  .quality-progress-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
  }

  .quality-progress-bar--depth {
    background: var(--color-accent);
  }

  .quality-progress-bar--fidelity {
    background: var(--color-success);
  }

  .quality-progress-bar--specificity {
    background: var(--color-info);
  }

  .quality-progress-bar--completeness {
    background: #8b5cf6;
  }

  /* --- Quality Flags --- */
  .quality-flags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
  }

  .quality-flag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.25em 0.625em;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-warning);
  }

  /* --- Table column adjustments for Quality column --- */
  .data-table th.sortable[data-sort-key="quality"],
  .data-table td:has(.grade-badge) {
    width: 1%;
    white-space: nowrap;
    padding: var(--space-sm) var(--space-xs);
    text-align: center;
  }