/* Baseline Design Tokens Fallback (guarantees perfect styling regardless of network/file mode) */
    :root {
      --bg-canvas: #EDF3FA;
      --bg-surface: #FFFFFF;
      --bg-surface-elevated: #F4F8FD;
      --bg-surface-hover: #DFECF9;
      --border-color: #D8E4F2;
      --border-bright: #B8CFE8;
      --border-subtle: #EDF3FA;
      --text-primary: #0A1E38;
      --text-secondary: #334D6E;
      --text-muted: #5E7A9E;
      --brand-primary: #0265E8;
      --brand-primary-hover: #0050BD;
      --brand-primary-light: rgba(2, 101, 232, 0.12);
      --brand-primary-bg: rgba(2, 101, 232, 0.08);
      --brand-primary-border: rgba(2, 101, 232, 0.25);
      --brand-primary-glow: rgba(2, 101, 232, 0.25);
      --status-green: #0D9488;
      --status-green-bg: rgba(13, 148, 136, 0.12);
      --status-green-border: rgba(13, 148, 136, 0.28);
      --accent-amber: #C06C26;
      --accent-amber-bg: rgba(192, 108, 38, 0.12);
      --accent-amber-border: rgba(192, 108, 38, 0.28);
      --card-radius: 6px;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 12px;
      --radius-pill: 9999px;
      --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
      --card-shadow: 0 4px 20px rgba(2, 101, 232, 0.08);
      --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
    }

    [data-theme="dark"], :root[data-theme="dark"] {
      --bg-canvas: #181B22;
      --bg-surface: #212631;
      --bg-surface-elevated: #262B37;
      --bg-surface-hover: #2E3544;
      --border-color: #2E3544;
      --border-bright: #40495C;
      --border-subtle: #242935;
      --text-primary: #FFFFFF;
      --text-secondary: #CBD5E1;
      --text-muted: #94A3B8;
      --brand-primary: #0265E8;
      --brand-primary-hover: #38BDF8;
      --brand-primary-light: #38BDF8;
      --brand-primary-bg: rgba(2, 101, 232, 0.15);
      --brand-primary-border: rgba(2, 101, 232, 0.35);
      --brand-primary-glow: rgba(2, 101, 232, 0.35);
      --status-green: #0D9488;
      --status-green-bg: rgba(13, 148, 136, 0.16);
      --status-green-border: rgba(13, 148, 136, 0.32);
      --accent-amber: #C06C26;
      --accent-amber-bg: rgba(192, 108, 38, 0.16);
      --accent-amber-border: rgba(192, 108, 38, 0.32);
      --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.35);
    }

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

    :root, [data-theme="light"] {
      color-scheme: light;
    }
    [data-theme="dark"] {
      color-scheme: dark;
    }

    body {
      background-color: var(--bg-canvas);
      color: var(--text-primary);
      font-family: var(--font-sans);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    .container {
      max-width: 1360px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    .studio-nav {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(24, 27, 34, 0.90);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      transition: background-color 0.2s ease, border-color 0.2s ease;
    }
    [data-theme="light"] .studio-nav {
      background: rgba(255, 255, 255, 0.92);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 1px 3px rgba(2, 101, 232, 0.05);
    }

    .nav-inner {
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }

    .brand-group {
      display: flex;
      align-items: center;
      gap: 0.875rem;
      text-decoration: none;
      color: var(--text-primary);
    }
    .brand-group:hover {
      color: var(--brand-primary);
    }

    .gem-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: var(--radius-pill);
      background: var(--brand-primary-bg);
      border: 1px solid var(--brand-primary-border);
      color: var(--brand-primary);
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }
    [data-theme="dark"] .gem-badge {
      color: #38BDF8;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 7px 14px;
      border-radius: var(--radius-sm);
      font-family: inherit;
      font-size: 0.8125rem;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.15s ease;
      border: 1px solid transparent;
      white-space: nowrap;
      user-select: none;
    }

    .btn-secondary {
      background: var(--bg-surface);
      color: var(--text-primary);
      border-color: var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .btn-secondary:hover {
      background: var(--bg-surface-hover);
      border-color: var(--border-bright);
      color: var(--text-primary);
    }
    .btn-secondary:active {
      background: var(--bg-surface-elevated);
    }

    .btn-primary {
      background: var(--brand-primary);
      color: #FFFFFF;
      border-color: var(--brand-primary);
      box-shadow: 0 2px 10px var(--brand-primary-glow);
    }
    .btn-primary:hover {
      background: var(--brand-primary-hover);
      border-color: var(--brand-primary-hover);
      color: #FFFFFF;
    }

    .hero {
      padding: 2.25rem 0 1.25rem;
    }

    .hero-title {
      font-size: 2.15rem;
      font-weight: 800;
      letter-spacing: -0.03em;
      line-height: 1.2;
      margin-bottom: 0.75rem;
      color: var(--text-primary);
    }

    .gradient-gem {
      background: linear-gradient(135deg, #0265E8 0%, #38BDF8 50%, #22C55E 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1rem;
      color: var(--text-secondary);
      max-width: 960px;
      line-height: 1.6;
    }

    .stats-row {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1rem;
      margin: 1.5rem 0 2rem;
    }

    .stat-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1rem 1.25rem;
      display: flex;
      flex-direction: column;
      gap: 4px;
      box-shadow: var(--card-shadow);
      transition: transform 0.15s ease, border-color 0.15s ease;
    }
    .stat-card:hover {
      border-color: var(--border-bright);
    }

    .stat-value {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--text-primary);
      line-height: 1.1;
      font-family: var(--font-mono);
    }

    .stat-label {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .toolbar {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 1.25rem;
      margin-bottom: 2rem;
      display: flex;
      flex-direction: column;
      gap: 1rem;
      box-shadow: var(--card-shadow);
    }

    .toolbar-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .search-input-wrap {
      flex: 1;
      min-width: 260px;
      position: relative;
    }

    .search-input {
      width: 100%;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 9px 12px 9px 36px;
      color: var(--text-primary);
      font-family: inherit;
      font-size: 0.875rem;
      outline: none;
      transition: border-color 0.15s ease, box-shadow 0.15s ease;
    }
    .search-input:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 0 3px var(--brand-primary-light);
    }

    .search-icon {
      position: absolute;
      left: 11px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      pointer-events: none;
    }

    .segmented {
      display: inline-flex;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 3px;
      gap: 3px;
      flex-wrap: wrap;
    }

    .segment-btn {
      background: transparent;
      border: none;
      color: var(--text-secondary);
      font-family: inherit;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 5px 11px;
      border-radius: 4px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.15s ease;
    }
    .segment-btn:hover {
      color: var(--text-primary);
      background: var(--bg-surface-hover);
    }
    .segment-btn.active {
      background: var(--brand-primary);
      color: #FFFFFF;
      box-shadow: 0 2px 8px var(--brand-primary-glow);
    }

    .card-glass {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 14px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--card-shadow);
      transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
    }
    .card-glass:hover {
      transform: translateY(-2px);
      border-color: var(--border-bright);
      box-shadow: 0 8px 24px rgba(2, 101, 232, 0.12);
    }
    [data-theme="dark"] .card-glass:hover {
      border-color: var(--border-bright);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    }

    .preview-chip {
      width: 44px;
      height: 44px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      flex-shrink: 0;
      transition: transform 0.15s ease;
    }
    .preview-chip:hover {
      transform: scale(1.08);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 3px 8px;
      border-radius: var(--radius-pill);
      font-size: 0.6875rem;
      font-weight: 700;
      letter-spacing: 0.02em;
      white-space: nowrap;
      line-height: 1.2;
    }
    .badge-blue {
      background: rgba(2, 101, 232, 0.10);
      color: var(--brand-primary);
      border: 1px solid rgba(2, 101, 232, 0.28);
    }
    .badge-green {
      background: var(--status-green-bg);
      color: var(--status-green);
      border: 1px solid var(--status-green-border);
    }
    .badge-orange {
      background: var(--accent-amber-bg);
      color: var(--accent-amber);
      border: 1px solid var(--accent-amber-border);
    }
    .badge-purple {
      background: rgba(124, 58, 237, 0.10);
      color: #7C3AED;
      border: 1px solid rgba(124, 58, 237, 0.28);
    }
    .badge-pink {
      background: rgba(190, 24, 93, 0.10);
      color: #BE185D;
      border: 1px solid rgba(190, 24, 93, 0.28);
    }
    .badge-teal {
      background: rgba(15, 118, 110, 0.10);
      color: #0F766E;
      border: 1px solid rgba(15, 118, 110, 0.28);
    }

    [data-theme="dark"] .badge-blue {
      background: rgba(2, 101, 232, 0.18);
      color: #38BDF8;
      border-color: rgba(2, 101, 232, 0.36);
    }
    [data-theme="dark"] .badge-green {
      background: rgba(16, 185, 129, 0.18);
      color: #34D399;
      border-color: rgba(16, 185, 129, 0.36);
    }
    [data-theme="dark"] .badge-orange {
      background: rgba(245, 158, 11, 0.18);
      color: #FBBF24;
      border-color: rgba(245, 158, 11, 0.36);
    }
    [data-theme="dark"] .badge-purple {
      background: rgba(168, 85, 247, 0.18);
      color: #C084FC;
      border-color: rgba(168, 85, 247, 0.36);
    }
    [data-theme="dark"] .badge-pink {
      background: rgba(236, 72, 153, 0.18);
      color: #F472B6;
      border-color: rgba(236, 72, 153, 0.36);
    }
    [data-theme="dark"] .badge-teal {
      background: rgba(20, 184, 166, 0.18);
      color: #2DD4BF;
      border-color: rgba(20, 184, 166, 0.36);
    }

    .icons-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 1rem;
      margin-bottom: 3rem;
    }

    /* Modal */
    .modal-backdrop {
      position: fixed;
      inset: 0;
      background: rgba(10, 30, 56, 0.5);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 100;
      padding: 1.25rem;
    }
    [data-theme="dark"] .modal-backdrop {
      background: rgba(0, 0, 0, 0.75);
    }
    .modal-backdrop.open {
      display: flex;
    }
    .modal-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      max-width: 600px;
      width: 100%;
      padding: 1.5rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
    }
    [data-theme="dark"] .modal-card {
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    }

    .modal-code-pre {
      background: var(--bg-canvas);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px;
      font-family: var(--font-mono);
      font-size: 0.75rem;
      color: var(--brand-primary);
      overflow-x: auto;
      white-space: pre-wrap;
      word-break: break-all;
      max-height: 240px;
    }
    [data-theme="dark"] .modal-code-pre {
      color: #38BDF8;
    }

    /* Toast */
    .toast {
      position: fixed;
      bottom: 24px;
      right: 24px;
      background: var(--bg-surface);
      color: var(--text-primary);
      border: 1px solid var(--border-color);
      border-left: 3px solid var(--brand-primary);
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      font-size: 0.8125rem;
      font-weight: 600;
      box-shadow: var(--shadow-lg);
      z-index: 110;
      display: none;
      align-items: center;
      gap: 8px;
    }
    .toast.show {
      display: inline-flex;
    }