:root {
      --gn-orange: #EF7200;
      --text-dark: #1a1a1a;
      --text-light: #666;
      --bg-light: #f8f9fa;
      --bg-dark: #1a1a1a;
      --border: #e0e0e0;
      --card-shadow: 0 4px 12px rgba(0,0,0,0.08);
      --card-hover-shadow: 0 8px 24px rgba(0,0,0,0.12);
    }

    [data-theme="light"] {
      --bg: #e5e7eb;
      --bg-secondary: #f3f4f6;
      --text: #1f2937;
      --text-secondary: #4b5563;
      --panel-hover: #f9fafb;
      --border: #d1d5db;
      --card-bg: #ffffff;
    }

    [data-theme="dark"] {
      --bg: #0a0e1a;
      --bg-secondary: #1a2338;
      --text: #e8f0ff;
      --text-secondary: #b8c5e0;
      --panel-hover: #243049;
      --border: #2a3f5f;
      --card-bg: #141b2d;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      padding: 40px 20px;
      transition: background 0.3s, color 0.3s;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
    }

    header {
      text-align: center;
      margin-bottom: 40px;
      max-width: 1200px;
      margin: 0 auto 40px;
    }

    .header-content {
      text-align: center;
    }

    /* Action Bar */
    .action-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      max-width: 1200px;
      margin: 0 auto 40px;
      padding: 20px 30px;
      background: var(--bg-secondary);
      border: 1px solid var(--border);
      border-radius: 16px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    }

    .action-bar-left,
    .action-bar-right {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .action-bar-left {
      flex: 1 1 auto;
      min-width: 0;
    }

    .action-bar-right {
      flex: 0 0 auto;
      justify-content: flex-end;
    }

    .tool-search-container {
      position: relative;
      display: flex;
      align-items: center;
      flex: 1 1 360px;
      max-width: 420px;
      min-width: 220px;
    }

    .search-icon {
      position: absolute;
      left: 14px;
      font-size: 16px;
      pointer-events: none;
      opacity: 0.5;
    }

    .tool-search {
      padding: 10px 16px 10px 40px;
      font-size: 15px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--bg);
      color: var(--text);
      width: 100%;
      height: 44px;
      transition: all 0.2s ease;
      outline: none;
      font-family: inherit;
      box-sizing: border-box;
    }

    .tool-search:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }

    .tool-search::placeholder {
      color: var(--text-secondary);
      opacity: 0.6;
    }

    .action-btn {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 12px 20px;
      font-size: 15px;
      font-weight: 500;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    .action-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }

    .action-btn:active {
      transform: translateY(0);
    }

    .btn-icon {
      font-size: 18px;
      display: flex;
      align-items: center;
    }

    .btn-text {
      font-weight: 500;
    }

    .reset-btn {
      background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
      color: white;
    }

    .reset-btn:hover {
      background: linear-gradient(135deg, #fb923c 0%, #f97316 100%);
    }

    .admin-btn {
      background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
      color: white;
    }

    .admin-btn:hover {
      background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    }

    .guides-header-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 24px;
      background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
      color: white;
      font-size: 15px;
      font-weight: 600;
      border-radius: 10px;
      text-decoration: none;
      box-shadow: 0 2px 8px rgba(124,58,237,0.35);
      transition: all 0.2s ease;
    }

    .guides-header-link:hover {
      background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(124,58,237,0.45);
      text-decoration: none;
      color: white;
    }

    .signout-btn {
      background: var(--bg);
      color: var(--text);
      border: 2px solid var(--border);
    }

    .signout-btn:hover {
      background: var(--panel-hover);
      border-color: var(--gn-orange);
    }

    .logo-container {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      margin-bottom: 24px;
    }

    .logo-container img {
      height: 60px;
      width: auto;
    }

    h1 {
      font-size: 42px;
      font-weight: 700;
      margin-bottom: 12px;
      text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .subtitle {
      font-size: 18px;
      opacity: 0.95;
      font-weight: 400;
    }

    .slogan {
      font-size: 16px;
      opacity: 0.8;
      font-weight: 300;
      font-style: italic;
      margin-top: 8px;
      letter-spacing: 0.5px;
    }

    .search-container {
      max-width: 600px;
      margin: 0 auto 60px;
      position: relative;
    }

    .search-box {
      width: 100%;
      padding: 16px 20px 16px 48px;
      font-size: 16px;
      border: none;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      outline: none;
      transition: box-shadow 0.2s;
    }

    .search-box:focus {
      box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    }

    .search-icon {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: #999;
      font-size: 20px;
    }

    .tools-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 40px;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .tool-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 32px;
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
      cursor: grab;
      text-decoration: none;
      color: var(--text);
      display: block;
      position: relative;
      overflow: hidden;
    }

    .tool-card.dragging {
      opacity: 0.5;
      cursor: grabbing;
      transform: scale(0.95);
    }

    .tool-card.drag-over {
      border: 2px dashed var(--gn-orange);
      background: var(--panel-hover);
    }

    .tool-card::after {
      content: '⋮⋮';
      position: absolute;
      top: 12px;
      left: 12px;
      font-size: 16px;
      color: var(--text-secondary);
      opacity: 0.3;
      transition: opacity 0.2s ease;
      pointer-events: none;
    }

    .tool-card:hover::after {
      opacity: 0.6;
    }

    .tool-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--gn-orange);
      transform: scaleX(0);
      transition: transform 0.3s ease;
    }

    .tool-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
    }

    .tool-card:hover::before {
      transform: scaleX(1);
    }

    .tool-icon {
      width: 56px;
      height: 56px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      margin-bottom: 20px;
      font-weight: 600;
      color: white;
    }

    .icon-heatmap {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }

    .icon-forward {
      background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    }

    .icon-callback {
      background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    }

    .tool-title {
      font-size: 24px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 12px;
    }

    .tool-description {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .tool-meta {
      display: flex;
      gap: 16px;
      font-size: 13px;
      color: var(--text-secondary);
      flex-wrap: wrap;
    }

    .theme-toggle {
      background: var(--bg);
      border: 2px solid var(--border);
      padding: 12px 16px;
      border-radius: 10px;
      cursor: pointer;
      font-size: 20px;
      transition: all 0.2s ease;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    .theme-toggle:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      border-color: var(--gn-orange);
    }

    .tool-meta-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    footer {
      text-align: center;
      color: var(--text-secondary);
      margin: 60px auto 20px;
      padding: 0 20px;
      font-size: 14px;
      max-width: 1200px;
    }

    .hidden {
      display: none !important;
    }

    .card {
      background: var(--bg-secondary);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--card-shadow);
    }

    .row {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      align-items: end;
    }

    .row > div {
      flex: 1;
      min-width: 150px;
    }

    .spacer {
      flex: 1000;
      min-width: 100%;
    }

    label {
      display: block;
      margin-bottom: 6px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text);
    }

    .input {
      width: 100%;
      padding: 10px 12px;
      border: 1px solid var(--border);
      border-radius: 6px;
      background: var(--bg);
      color: var(--text);
      font-size: 14px;
      transition: border-color 0.2s;
    }

    .input:focus {
      outline: none;
      border-color: var(--gn-orange);
    }

    .btn {
      padding: 10px 20px;
      border: none;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s;
    }

    .btn.primary {
      background: var(--gn-orange);
      color: white;
    }

    .btn.primary:hover {
      background: var(--accent-hover, #d86500);
      transform: translateY(-1px);
    }

    .btn.secondary {
      background: var(--bg-secondary);
      color: var(--text);
      border: 1px solid var(--border);
    }

    .btn.secondary:hover {
      background: var(--panel-hover);
    }

    .muted {
      color: var(--text-secondary);
      font-size: 13px;
    }

    .error {
      color: #ef4444;
      font-size: 13px;
    }

    .success {
      color: #10b981;
      font-size: 13px;
    }

    .sso-btn {
      width: 100%;
      max-width: 400px;
      margin: 0 auto;
      padding: 16px 24px;
      background: white;
      border: 2px solid #e0e0e0;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 600;
      color: #5e5e5e;
      cursor: pointer;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    }

    .sso-btn:hover {
      background: #f9f9f9;
      border-color: #8c8c8c;
      box-shadow: 0 4px 12px rgba(0,0,0,0.12);
      transform: translateY(-2px);
    }

    .sso-btn:active {
      transform: translateY(0);
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    }

    .divider {
      text-align: center;
      margin: 16px 0;
      color: var(--text-secondary);
      font-size: 13px;
      position: relative;
    }

    .divider::before,
    .divider::after {
      content: '';
      position: absolute;
      top: 50%;
      width: 40%;
      height: 1px;
      background: var(--border);
    }

    .divider::before { left: 0; }
    .divider::after { right: 0; }

    /* Stats Banner Styles */
    .stats-banner {
      background: var(--bg-secondary);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 24px 32px;
      margin-bottom: 40px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    }

    .stats-container {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 48px;
    }

    .stat-item {
      text-align: center;
      position: relative;
      cursor: pointer;
      padding: 12px 24px;
      border-radius: 8px;
      transition: background 0.2s;
    }

    .stat-item:hover {
      background: var(--panel-hover);
    }

    .stat-item:hover .stat-regions {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-secondary);
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 8px;
    }

    .stat-value {
      font-size: 36px;
      font-weight: 700;
      color: var(--gn-orange);
      line-height: 1;
      font-variant-numeric: tabular-nums;
    }

    .stat-divider {
      width: 1px;
      height: 60px;
      background: var(--border);
    }

    .stat-regions {
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%) translateY(-8px);
      background: var(--bg-secondary);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 12px 16px;
      min-width: 200px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      opacity: 0;
      visibility: hidden;
      transition: all 0.2s;
      z-index: 10;
      margin-top: 8px;
    }

    .stat-region-row {
      display: flex;
      justify-content: space-between;
      padding: 6px 0;
      font-size: 13px;
      border-bottom: 1px solid var(--border);
    }

    .stat-region-row:last-child {
      border-bottom: none;
    }
    
    .stat-prev-year-inline {
      font-size: 11px;
      color: var(--text-tertiary);
      font-weight: 400;
      font-style: italic;
      opacity: 0.7;
      margin-left: 6px;
    }

    .stat-region-name {
      color: var(--text-secondary);
      font-weight: 500;
    }

    .stat-region-value {
      color: var(--text);
      font-weight: 600;
      font-variant-numeric: tabular-nums;
    }

    .stats-footer {
      text-align: center;
      margin-top: 16px;
      padding-top: 16px;
      border-top: 1px solid var(--border);
      font-size: 12px;
      color: var(--text-secondary);
    }

    .loading-spinner {
      animation: pulse 1.5s ease-in-out infinite;
      color: var(--text-secondary);
    }

    @keyframes pulse {
      0%, 100% { opacity: 0.3; }
      50% { opacity: 1; }
    }

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

      .action-bar {
        flex-wrap: wrap;
      }

      .action-bar-left,
      .action-bar-right {
        width: 100%;
      }

      .action-bar-right {
        justify-content: flex-start;
      }

      .tool-search-container {
        max-width: none;
      }

      header {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .stats-container {
        gap: 32px;
      }

      .stat-value {
        font-size: 28px;
      }
    }

    @media (max-width: 768px) {
      h1 {
        font-size: 32px;
      }

      .action-bar {
        padding: 16px;
      }

      .action-bar-left,
      .action-bar-right {
        flex-wrap: wrap;
      }

      .tool-search-container {
        min-width: 100%;
      }

      .tools-grid {
        grid-template-columns: 1fr;
      }

      .tool-card {
        padding: 24px;
      }

      .stats-banner {
        padding: 20px 16px;
      }

      .stats-container {
        flex-direction: column;
        gap: 24px;
      }

      .stat-divider {
        width: 60px;
        height: 1px;
      }

      .stat-value {
        font-size: 32px;
      }
    }
    /* User Management Modal */
    .modal {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 10000;
      padding: 20px;
    }

    [data-theme="light"] .modal {
      background: rgba(0, 0, 0, 0.4);
    }

    .modal-content {
      background: var(--bg);
      border-radius: 12px;
      padding: 30px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    }

    [data-theme="light"] .modal-content {
      background: #ffffff;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    }

    .user-list-item {
      transition: background 0.15s;
    }

    .user-list-item:hover {
      background: var(--panel-hover);
    }

    .user-list-item.selected {
      background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
      border-left: 3px solid #8b5cf6;
    }

    [data-theme="light"] .user-list-item.selected {
      background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(124, 58, 237, 0.15) 100%);
    }

```