/* Text Input */
    .wc-textarea {
      width: 100%;
      min-height: 260px;
      padding: 18px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 1rem;
      color: var(--color-text);
      background: var(--color-surface);
      resize: vertical;
      line-height: 1.7;
      outline: none;
      transition: border-color var(--transition-fast);
    }

    .wc-textarea:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px var(--color-primary-light);
    }

    .wc-textarea::placeholder {
      color: var(--color-text-muted);
    }

    /* Stats Grid */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 20px;
    }

    .stat-card {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      padding: 16px 18px;
      text-align: center;
      transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    }

    .stat-card:hover {
      border-color: var(--color-primary-subtle);
      box-shadow: var(--shadow-sm);
    }

    .stat-value {
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--color-primary);
      line-height: 1.2;
      font-family: var(--font-body);
    }

    .stat-label {
      font-size: 0.78rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-secondary);
      margin-top: 4px;
    }

    /* Clear Button Row */
    .wc-actions {
      display: flex;
      justify-content: flex-end;
      margin-top: 16px;
    }

    /* Keyword Density Section */
    .keyword-section {
      margin-top: 28px;
      padding-top: 24px;
      border-top: 1px solid var(--color-border-light);
    }

    .keyword-section h3 {
      font-size: 1rem;
      font-weight: 600;
      color: var(--color-text);
      margin-bottom: 14px;
    }

    .keyword-empty {
      font-size: 0.9rem;
      color: var(--color-text-muted);
      padding: 20px 0;
    }

    .keyword-list {
      display: flex;
      flex-direction: column;
      gap: 6px;
      max-height: 320px;
      overflow-y: auto;
    }

    .keyword-row {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 8px 12px;
      background: var(--color-bg);
      border-radius: 6px;
      font-size: 0.88rem;
    }

    .keyword-word {
      font-weight: 600;
      color: var(--color-text);
      min-width: 120px;
    }

    .keyword-bar-track {
      flex: 1;
      height: 6px;
      background: var(--color-border-light);
      border-radius: 3px;
      overflow: hidden;
    }

    .keyword-bar-fill {
      height: 100%;
      background: var(--color-primary);
      border-radius: 3px;
      transition: width var(--transition-base);
    }

    .keyword-count {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      color: var(--color-text-secondary);
      min-width: 30px;
      text-align: right;
    }

    .keyword-pct {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      color: var(--color-text-muted);
      min-width: 48px;
      text-align: right;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .keyword-word {
        min-width: 80px;
      }
    }

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

      .wc-textarea {
        min-height: 180px;
        font-size: 0.95rem;
      }
    }