/* --- SCOPE TOÀN BỘ TOOL --- */
    #cpfsb-repeat-tool{
      --cp-bg: #ffffff;
      --cp-border: #e2e8f0;
      --cp-text: #0f172a;
      --cp-text-muted: #64748b;
      --cp-primary: #0f172a;
      --cp-primary-hover: #334155;
      --cp-radius: 12px;

      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: var(--cp-text);

      background: transparent;
      padding: 0;
      border-radius: 0;
      max-width: 1200px;
      margin: 0 auto;
    }

    #cpfsb-repeat-tool * { box-sizing: border-box; }

    #cpfsb-repeat-tool .cp-grid-cols {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: start;
    }
    @media (max-width: 768px) {
      #cpfsb-repeat-tool .cp-grid-cols { grid-template-columns: 1fr; }
    }

    #cpfsb-repeat-tool .cp-card {
      background: var(--cp-bg);
      border: 1px solid var(--cp-border);
      border-radius: var(--cp-radius);
      box-shadow: 0 1px 3px rgba(0,0,0,0.02);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

    #cpfsb-repeat-tool .cp-card-head {
      padding: 16px 20px;
      border-bottom: 1px solid var(--cp-border);
      background: #fafafa;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
    }
    #cpfsb-repeat-tool .cp-card-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--cp-text);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    #cpfsb-repeat-tool .cp-textarea {
      width: 100%;
      padding: 16px;
      border: none;
      outline: none;
      font-size: 15px;
      line-height: 1.6;
      font-family: inherit;
      resize: vertical;
      color: var(--cp-text);
      background: #fff;
    }
    #cpfsb-repeat-tool .cp-textarea:focus { background: #fdfdfd; }
    #cpfsb-repeat-tool .cp-textarea.output-area { background: #f8fafc; color: #334155; }

    #cpfsb-repeat-tool #inputText { min-height: 320px; }
    #cpfsb-repeat-tool #outputText { min-height: 360px; }

    #cpfsb-repeat-tool .cp-settings-box {
      padding: 20px;
      background: #fff;
      border-top: 1px solid var(--cp-border);
    }

    #cpfsb-repeat-tool .cp-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    #cpfsb-repeat-tool .cp-span-2 { grid-column: span 2; }

    #cpfsb-repeat-tool .cp-label {
      display: block;
      font-size: 12px;
      font-weight: 700;
      color: var(--cp-text-muted);
      margin-bottom: 6px;
      text-transform: uppercase;
    }

    #cpfsb-repeat-tool .cp-input,
    #cpfsb-repeat-tool .cp-select {
      width: 100%;
      padding: 10px 12px;
      border: 1px solid var(--cp-border);
      border-radius: 8px;
      font-size: 14px;
      background: #fff;
      color: var(--cp-text);
      outline: none;
    }
    #cpfsb-repeat-tool .cp-input:focus,
    #cpfsb-repeat-tool .cp-select:focus { border-color: var(--cp-primary); }

    #cpfsb-repeat-tool .cp-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 8px 14px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.2s;
      white-space: nowrap;
      user-select: none;
    }
    #cpfsb-repeat-tool .cp-btn svg { width: 16px; height: 16px; }

    #cpfsb-repeat-tool .cp-btn-primary {
      background: var(--cp-primary);
      color: #fff;
      width: 100%;
      padding: 12px;
      font-size: 15px;
      text-transform: uppercase;
    }
    #cpfsb-repeat-tool .cp-btn-primary:hover { background: var(--cp-primary-hover); }

    #cpfsb-repeat-tool .cp-btn-secondary { background: #fff; border-color: var(--cp-border); color: var(--cp-text); }
    #cpfsb-repeat-tool .cp-btn-secondary:hover { border-color: var(--cp-primary); color: var(--cp-primary); }

    #cpfsb-repeat-tool .cp-btn-danger { background: #fff; border-color: #fee2e2; color: #ef4444; }
    #cpfsb-repeat-tool .cp-btn-danger:hover { background: #fef2f2; border-color: #dc2626; }

    #cpfsb-repeat-tool .cp-btn-success { background: #10b981; color: #fff; }
    #cpfsb-repeat-tool .cp-btn-success:hover { background: #059669; }

    #cpfsb-repeat-tool .cp-btn-ghost { background: transparent; color: #ef4444; border: none; padding: 0; }
    #cpfsb-repeat-tool .cp-btn-ghost:hover { text-decoration: underline; }

    #cpfsb-repeat-tool .cp-card-footer {
      padding: 12px 20px;
      background: #f8fafc;
      border-top: 1px solid var(--cp-border);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    #cpfsb-repeat-tool .cpfsb-hidden { display: none !important; }
    #cpfsb-repeat-tool .cpfsb-msg { margin-top: 10px; text-align: center; font-size: 14px; font-weight: 600; min-height: 20px; }
    #cpfsb-repeat-tool .cpfsb-msg.is-error { color: #dc2626; }
    #cpfsb-repeat-tool .cpfsb-msg.is-success { color: #16a34a; }

    #cpfsb-repeat-tool .cpfsb-preview-note {
      position: absolute; inset: 0;
      display: flex; justify-content: center; align-items: center;
      pointer-events: none;
    }
    #cpfsb-repeat-tool .cpfsb-preview-badge {
      background: #fefce8;
      color: #92400e;
      border: 1px solid #fde68a;
      padding: 8px 16px;
      border-radius: 999px;
      font-weight: 700;
      font-size: 13px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    #cpfsb-repeat-tool details summary {
      cursor: pointer;
      font-weight: 600;
      color: var(--cp-text-muted);
      font-size: 13px;
      user-select: none;
    }
    #cpfsb-repeat-tool details summary:hover { color: var(--cp-primary); }

    #cpfsb-repeat-tool .cp-badge {
      font-size: 11px;
      font-weight: 700;
      background: #e2e8f0;
      color: #475569;
      padding: 2px 8px;
      border-radius: 999px;
      white-space: nowrap;
    }

    #cpfsb-repeat-tool .cp-output-wrap {
      position: relative;
      display: block;
    }