/* Extracted from lighthouse-app.html (UI redesign N1) — load order matters */
    /* App-specific extensions — base tokens from /static/tokens.css */
    :root {
      /* Legacy alias for code referencing the old name */
      --accent-cyan: var(--accent);

      /* App-only tokens */
      --gradient-dark: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
      --card-bg: var(--bg-card);
      --border-color: var(--border);
    }
    
    /* Light mode — base overrides from tokens.css; app-specific only here */
    [data-theme="light"] {
      --gradient-dark: linear-gradient(180deg, #f6f8fa 0%, #ffffff 100%);
      --glass-bg: rgba(246, 248, 250, 0.82);
      --glass-border: rgba(209, 217, 224, 0.6);
    }
    
    [data-theme="light"] .landing::before {
      opacity: 0.04;
      filter: saturate(0.2) brightness(1.2);
    }
    [data-theme="light"] .landing::after {
      background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139, 90, 16, 0.04) 0%, transparent 50%);
    }
    
    [data-theme="light"] #oceanBgDashboard img {
      opacity: 0.05;
      filter: saturate(0.2) brightness(1.3);
    }
    
    [data-theme="light"] .key-metric-card,
    [data-theme="light"] .score-card,
    [data-theme="light"] .whats-new-card {
      box-shadow: var(--shadow-card);
      border-color: var(--border-subtle);
    }
    
    [data-theme="light"] .score-card:hover {
      box-shadow: var(--shadow-card-hover);
    }
    
    [data-theme="light"] .trend-grid-line {
      stroke: #e5e7eb;
    }
    
    [data-theme="light"] .trend-axis-label,
    [data-theme="light"] .trend-date-label {
      fill: #6b7280;
    }
    
    [data-theme="light"] .metrics-trend-container {
      background: #ffffff;
      border-color: #e5e7eb;
    }
    
    [data-theme="light"] .modal-content,
    [data-theme="light"] .modal {
      background: #ffffff;
      border-color: #e5e7eb;
    }
    
    [data-theme="light"] .tooltip,
    [data-theme="light"] .metrics-trend-tooltip {
      background: #ffffff;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }
    
    /* Light mode - Tabs & Navigation */
    [data-theme="light"] .tabs {
      background: #f6f8fa;
      border-color: #e5e7eb;
    }

    [data-theme="light"] .tabs-nav {
      background: #f8f9fb;
      border-right-color: #e5e7eb;
    }

    [data-theme="light"] .tabs-nav::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.1); }
    [data-theme="light"] .tabs-nav::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.18); }

    [data-theme="light"] .tab-btn {
      color: #59636e;
    }

    [data-theme="light"] .tab-btn:hover {
      background: rgba(0, 0, 0, 0.04);
      color: #1f2328;
    }

    [data-theme="light"] .tab-btn.active {
      background: rgba(0, 100, 200, 0.06);
      color: #0969da;
      border-left-color: transparent;
    }

    [data-theme="light"] .tab-icon svg { stroke: #59636e; }
    [data-theme="light"] .tab-btn.active .tab-icon svg { stroke: #0969da; }

    [data-theme="light"] .sidebar-toggle {
      border-color: #e5e7eb;
      color: #59636e;
    }

    [data-theme="light"] .sidebar-toggle:hover {
      background: rgba(0, 0, 0, 0.05);
      border-color: #c9cdd3;
    }

    [data-theme="light"] .sidebar-divider {
      background: #e5e7eb;
    }

    [data-theme="light"] .sidebar-section-label {
      color: #8b949e;
    }
    
    /* Light mode - Cards & Panels */
    [data-theme="light"] .visibility-card,
    [data-theme="light"] .page-card,
    [data-theme="light"] .llm-result-item,
    [data-theme="light"] .prompt-result,
    [data-theme="light"] .theme-card,
    [data-theme="light"] .citation-card,
    [data-theme="light"] .competitor-intel-card,
    [data-theme="light"] .roadmap-task,
    [data-theme="light"] .project-card,
    [data-theme="light"] .project-card-landing,
    [data-theme="light"] .strategy-section,
    [data-theme="light"] .keyword-table,
    [data-theme="light"] .analysis-detail-card,
    [data-theme="light"] .xci-competitor-card,
    [data-theme="light"] .xci-scatter-tooltip {
      background: #ffffff;
      border-color: #e5e7eb;
    }
    [data-theme="light"] .xci-metric-card,
    [data-theme="light"] .xci-intent-header,
    [data-theme="light"] .xci-scatter-wrap,
    [data-theme="light"] .xci-action-footer,
    [data-theme="light"] .xci-quadrant-badge {
      background: #f6f8fa;
      border-color: #e5e7eb;
    }
    [data-theme="light"] .xci-tab {
      border-color: #d1d9e0;
      color: #59636e;
    }
    [data-theme="light"] .xci-tab.active {
      border-color: transparent;
      color: #fff;
    }
    
    [data-theme="light"] .page-card:hover,
    [data-theme="light"] .prompt-result:hover,
    [data-theme="light"] .project-card:hover,
    [data-theme="light"] .theme-card:hover {
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    }
    
    /* Light mode - Backgrounds */
    [data-theme="light"] .score-grid,
    [data-theme="light"] .sidebar,
    [data-theme="light"] .main-content-header {
      background: #f6f8fa;
    }
    
    [data-theme="light"] .prompt-result-body,
    [data-theme="light"] .theme-detail-stat,
    [data-theme="light"] .theme-detail-question,
    [data-theme="light"] .competitor-stat,
    [data-theme="light"] .journey-stats {
      background: #f6f8fa;
    }
    
    /* Light mode - Text & Borders */
    [data-theme="light"] .score-submetric {
      border-color: rgba(0, 0, 0, 0.06);
    }
    
    /* Light mode - Inputs & Forms */
    [data-theme="light"] .website-input,
    [data-theme="light"] .auth-input,
    [data-theme="light"] input,
    [data-theme="light"] select,
    [data-theme="light"] textarea {
      background: #ffffff;
      border-color: #d1d9e0;
      color: #1f2328;
    }
    
    [data-theme="light"] .website-input:focus,
    [data-theme="light"] .auth-input:focus,
    [data-theme="light"] input:focus,
    [data-theme="light"] select:focus,
    [data-theme="light"] textarea:focus {
      border-color: #8B5A10;
      box-shadow: 0 0 0 3px rgba(139, 90, 16, 0.1);
    }
    
    /* Unified Button System */
    .btn-primary, .btn-secondary, .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      text-decoration: none;
      white-space: nowrap;
      transition: background var(--duration-normal) var(--ease-out), color var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out), filter var(--duration-normal) var(--ease-out);
      border: 1px solid transparent;
      line-height: 1.4;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--bg-primary);
      border-color: transparent;
      box-shadow: 0 2px 8px rgba(232, 168, 48, 0.2);
    }
    .btn-primary:hover {
      filter: brightness(1.1);
      transform: translateY(-1px);
      box-shadow: 0 4px 16px rgba(232, 168, 48, 0.3);
    }
    .btn-primary:active {
      transform: translateY(0);
      filter: brightness(0.95);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.06);
      border-color: var(--border);
      color: var(--text-primary);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--glass-border);
      transform: translateY(-1px);
    }
    .btn-secondary:active {
      transform: translateY(0);
      background: rgba(255, 255, 255, 0.04);
    }

    .btn-ghost {
      background: transparent;
      border-color: transparent;
      color: var(--text-secondary);
    }
    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-primary);
    }
    .btn-ghost:active {
      background: rgba(255, 255, 255, 0.03);
    }

    .btn-sm {
      padding: 4px 10px;
      font-size: 12px;
    }
    .btn-lg {
      padding: 12px 24px;
      font-size: 15px;
    }

    /* Light mode - Buttons */
    [data-theme="light"] .btn-secondary {
      background: rgba(0, 0, 0, 0.03);
      border-color: var(--border);
      color: var(--text-primary);
    }
    [data-theme="light"] .btn-secondary:hover {
      background: rgba(0, 0, 0, 0.06);
    }
    [data-theme="light"] .btn-ghost:hover {
      background: rgba(0, 0, 0, 0.04);
    }

    [data-theme="light"] .analyze-btn,
    [data-theme="light"] .btn-primary {
      background: #8B5A10; color: #fff;
    }
    
    [data-theme="light"] .btn-secondary,
    [data-theme="light"] .ai-action-btn {
      background: #f6f8fa;
      border-color: #d1d9e0;
      color: #1f2328;
    }
    
    [data-theme="light"] .btn-secondary:hover,
    [data-theme="light"] .ai-action-btn:hover {
      background: #eaeef2;
    }
    
    /* Light mode - Sidebar */
    [data-theme="light"] .competitor-sidebar {
      background: #ffffff;
      border-color: #e5e7eb;
    }
    
    [data-theme="light"] .competitor-item {
      background: #f6f8fa;
    }
    
    [data-theme="light"] .competitor-item:hover {
      background: #eaeef2;
    }
    
    /* Light mode - Focus Group */
    [data-theme="light"] .persona-card,
    [data-theme="light"] .session-card,
    [data-theme="light"] .fg-test-card {
      background: #ffffff;
      border-color: #e5e7eb;
    }
    
    [data-theme="light"] .persona-card:hover {
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }
    
    /* Light mode - Scrollbars */
    [data-theme="light"] ::-webkit-scrollbar-track {
      background: #f6f8fa;
    }
    
    [data-theme="light"] ::-webkit-scrollbar-thumb {
      background: #d1d9e0;
    }
    
    [data-theme="light"] ::-webkit-scrollbar-thumb:hover {
      background: #b8c1cc;
    }
    
    /* Light mode - Auth */
    [data-theme="light"] .auth-modal-content {
      background: #ffffff;
      border-color: #e5e7eb;
    }
    
    [data-theme="light"] .auth-header {
      background: rgba(246, 248, 250, 0.95);
    }
    
    /* Light mode - Loading */
    [data-theme="light"] .loading {
      background: linear-gradient(180deg, #f6f8fa 0%, #ffffff 100%);
    }
    [data-theme="light"] .loading-progress-track {
      background: linear-gradient(90deg, #dce4eb 0%, #e8eef4 50%, #dce4eb 100%);
      box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.5);
    }
    [data-theme="light"] .loading-progress-fill {
      box-shadow: 2px 0 10px rgba(139, 90, 16, 0.25);
    }
    [data-theme="light"] .loading-progress-fill::before {
      background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.4) 30%,
        rgba(139, 90, 16, 0.25) 50%,
        rgba(255, 255, 255, 0.4) 70%,
        transparent 100%
      );
    }
    
    /* Theme Toggle Button - hidden, now in auth header nav */
    .theme-toggle {
      display: none !important;
    }

    /* Premium Polish */
    html { scroll-behavior: smooth; }
    ::selection { background: rgba(232, 168, 48, 0.2); }
    [data-theme="light"] ::selection { background: rgba(139, 90, 16, 0.2); }
    *:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: inherit; }

    /* Focus-visible overrides for specific interactive elements */
    .tab-btn:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: -2px;
      border-radius: var(--radius-sm);
    }
    .cmd-palette-item:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: -2px;
      border-radius: var(--radius-md);
    }
    .modal-close {
      width: 32px;
      height: 32px;
      background: var(--bg-tertiary);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      color: var(--text-secondary);
      font-size: 18px;
      line-height: 1;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: border-color 0.2s ease, color 0.2s ease;
    }
    .modal-close:hover {
      border-color: var(--accent);
      color: var(--accent);
    }
    .viz-modal-close:focus-visible,
    .auth-modal-close:focus-visible,
    .modal-close:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: -2px;
    }
    #sidebarTabSearch:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: -2px;
      border-radius: var(--radius-sm);
    }

    /* Card active/pressed state */
    .score-card:active,
    .strategy-insight-card:active,
    .key-metric-card:active,
    .whats-new-card:active {
      transform: translateY(0) scale(0.99);
    }

    /* Unified badge system */
    .badge, .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 3px 8px;
      font-size: 11px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      line-height: 1.4;
    }
    .badge-pill { border-radius: var(--radius-full); }
    .badge-success { background: rgba(34, 197, 94, 0.12); color: var(--accent-green); }
    .badge-warning { background: rgba(234, 179, 8, 0.12); color: var(--accent-yellow); }
    .badge-danger  { background: rgba(239, 68, 68, 0.12); color: var(--accent-red); }
    .badge-info    { background: rgba(59, 130, 246, 0.12); color: var(--accent-blue); }
    .badge-purple  { background: rgba(168, 85, 247, 0.12); color: var(--accent-purple); }
    .badge-neutral { background: rgba(139, 148, 158, 0.12); color: var(--text-secondary); }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-display);
      background: var(--bg-primary);
      color: var(--text-primary);
      min-height: 100vh;
      line-height: 1.6;
      overflow-x: hidden;
    }
    
    /* Noise texture overlay removed – z-index 99999 maintenance hazard, no visible benefit */
    
    /* Custom scrollbar styling */
    ::-webkit-scrollbar { width: 6px; height: 6px; }
    ::-webkit-scrollbar-track { background: transparent; }
    ::-webkit-scrollbar-thumb { background: rgba(139, 148, 158, 0.2); border-radius: var(--radius-full); }
    ::-webkit-scrollbar-thumb:hover { background: rgba(139, 148, 158, 0.4); }
    ::-webkit-scrollbar-corner { background: transparent; }
    [data-theme="light"] ::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.12); }
    [data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: rgba(0, 0, 0, 0.25); }

    /* Auto-hiding scrollbar on tab content */
    .tab-content::-webkit-scrollbar-thumb { background: transparent; }
    .tab-content:hover::-webkit-scrollbar-thumb { background: rgba(139, 148, 158, 0.2); }
    [data-theme="light"] .tab-content::-webkit-scrollbar-thumb { background: transparent; }
    [data-theme="light"] .tab-content:hover::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.12); }
    
    .mono {
      font-family: var(--font-mono);
    }
    
    /* ═══════════════════════════════════════ */

    /* T2: screen-reader-only utility for canvas/table alternatives */
    .visually-hidden {
      position: absolute !important;
      width: 1px; height: 1px;
      margin: -1px; padding: 0; border: 0;
      clip-path: inset(50%);
      overflow: hidden;
      white-space: nowrap;
    }