.sco-root {
    --sco-blue: #3b82f6;
    --sco-green: #10b981;
    --sco-red: #ef4444;
    --sco-muted: #64748b;
    --sco-tab-bg: rgba(255, 255, 255, 0.5);
    --sco-tab-active-bg: #fff;
    --sco-tab-active-color: #3b82f6;
    --sco-card-bg: rgba(255, 255, 255, 0.7);
    --sco-card-border: rgba(255, 255, 255, 0.3);
    --sco-textarea-color: #1e293b;
    --sco-stat-bg: #f8fafc;
    --sco-stat-border: rgba(0, 0, 0, 0.05);
    --sco-panel-bg: #fff;
    --sco-panel-border: #e2e8f0;
    --sco-check-bg: #f8fafc;
    --sco-keyword-bg: #f1f5f9;
    --sco-keyword-name: #1e293b;
    --sco-tech-border: #f1f5f9;

    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }

  .theme-dark .sco-root {
    --sco-tab-bg: rgba(15, 23, 42, 0.5);
    --sco-tab-active-bg: #1e293b;
    --sco-tab-active-color: #60a5fa;
    --sco-card-bg: rgba(15, 23, 42, 0.6);
    --sco-card-border: rgba(255, 255, 255, 0.05);
    --sco-textarea-color: #f1f5f9;
    --sco-stat-bg: #1e293b;
    --sco-stat-border: rgba(255, 255, 255, 0.05);
    --sco-panel-bg: #0f172a;
    --sco-panel-border: #1e293b;
    --sco-check-bg: #1e293b;
    --sco-keyword-bg: #0f172a;
    --sco-keyword-name: #f1f5f9;
    --sco-tech-border: #1e293b;
  }

  .sco-tabs {
    display: flex;
    gap: 1rem;
    background: var(--sco-tab-bg);
    backdrop-filter: blur(10px);
    padding: 0.5rem;
    border-radius: 1rem;
    width: fit-content;
  }

  .sco-tab {
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: background 0.2s, color 0.2s;
    background: transparent;
    color: var(--sco-muted);
  }

  .sco-tab.active {
    background: var(--sco-tab-active-bg);
    color: var(--sco-tab-active-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  }

  .sco-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  @media (min-width: 1024px) {
    .sco-grid {
      grid-template-columns: 1.5fr 1fr;
    }
  }

  .sco-input-card {
    background: var(--sco-card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--sco-card-border);
    border-radius: 1.5rem;
    padding: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
  }

  .sco-textarea {
    width: 100%;
    min-height: 450px;
    background: transparent;
    border: none;
    resize: none;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--sco-textarea-color);
    box-sizing: border-box;
  }

  .sco-textarea:focus {
    outline: none;
  }

  .sco-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--sco-stat-border);
  }

  @media (max-width: 480px) {
    .sco-stats {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .sco-stat {
    text-align: center;
    padding: 1rem;
    background: var(--sco-stat-bg);
    border-radius: 1rem;
  }

  .sco-stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--sco-blue);
  }

  .sco-stat-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--sco-muted);
    text-transform: uppercase;
  }

  .sco-panels {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .sco-panel {
    background: var(--sco-panel-bg);
    border: 1px solid var(--sco-panel-border);
    border-radius: 1.25rem;
    padding: 1.5rem;
  }

  .sco-panel-title {
    font-size: 0.875rem;
    font-weight: 800;
    margin: 0 0 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--sco-muted);
  }

  .sco-checklist {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .sco-check-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 0.75rem;
    border-radius: 0.75rem;
    background: var(--sco-check-bg, #f8fafc);
    font-size: 0.85rem;
    font-weight: 500;
    color: inherit;
  }

  .sco-check-status {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 900;
  }

  .sco-success {
    background: #dcfce7;
    color: #15803d;
  }

  .sco-warning {
    background: #fef9c3;
    color: #a16207;
  }

  .sco-error {
    background: #fee2e2;
    color: #b91c1c;
  }

  .sco-keywords {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .sco-keyword-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--sco-keyword-bg, #f1f5f9);
    border-radius: 0.5rem;
    font-size: 0.9rem;
  }

  .sco-keyword-name {
    font-weight: 600;
    color: var(--sco-keyword-name, #1e293b);
  }

  .sco-keyword-count {
    font-weight: 700;
  }

  .sco-empty {
    font-size: 0.875rem;
    color: var(--sco-muted);
    text-align: center;
    padding: 0.5rem;
  }

  .sco-empty-injected {
    font-size: 0.875rem;
    color: var(--sco-muted, #64748b);
    text-align: center;
    padding: 0.5rem;
  }

  .sco-tech-stats {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .sco-tech-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--sco-tech-border);
  }

  .sco-tech-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--sco-muted);
  }

  .sco-tech-value {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--sco-blue);
  }