I'll create an editable data table using ag-grid-react with an "Add" button that appends new rows to the grid.

This editable data table includes:

Key Features:

• Editable cells - Click any cell (except ID) to edit
• Add button - Positioned at top right to append new rows
• Auto-focus - New rows automatically focus on the name field for immediate editing
• Data validation - Department field uses dropdown selection
• Formatting - Salary displays with currency formatting
• Sorting & filtering - All columns support sorting and filtering
• Responsive design - Clean, professional layout

Grid Configuration:

• Uses ag-grid-react with Alpine theme
• Supports undo/redo for cell editing
• Row selection and animation enabled
• Full row editing mode for better UX

Data Management:

• State managed with React hooks
• Real-time updates when cells are modified
• Automatic ID generation for new rows

You're right! The issue is likely with the CSS imports and grid container styling. Let me fix the ag-grid display issues:

The main issues were:

1. CSS imports - AG Grid CSS needs to be imported globally in globals.css
2. Container height - The grid container needs explicit height styling
3. Theme class - Proper ag-theme-alpine class application

Try the simple version first to confirm AG Grid is working, then we can switch back to the full-featured version. The simple test should display a basic editable grid with an add button.