Now I'll add the new features. Let me start by updating the QuickAddButtons to include decrease buttons:
Now let me update the HistoryTable to add edit functionality for previous days:
Now let me update the page.tsx to add the new handler functions for decreasing counts and exporting Excel:
Now let me verify the changes in the browser:
Great! The decrease buttons are showing. Let me test the decrease functionality and scroll down to see the history section with edit options:
I can see all the features are there. Let me test the decrease button by clicking it:
The decrease button works - tea count went from 2 to 1, and total from 4 to 3. Now let me scroll down to test the edit and export functions:
I can see the History section with the "Export Excel" button and the Edit/Delete options. Let me test the Edit functionality:
The edit mode is now active - I can see input fields for tea and coffee counts with Save and Cancel buttons. Let me test editing a value:
The edit functionality works - tea count changed from 1 to 3, and the history now shows 3 teas with a total of 5. The statistics updated too. Now let me test the Excel export button. I'll need to use the browser to check if the download works:
The Excel export worked - a CSV file was created. Let me verify the content of the exported file:
All three features are working beautifully. Let me take a final screenshot showing the full interface:
I've successfully added all three features you requested:
1. Decrease Buttons (−1)
2. Edit Previous Days
3. Export to Excel
tea-coffee-tracker-YYYY-MM-DD.csvAll features are fully tested and working seamlessly with the existing dashboard. The app maintains full localStorage persistence, and all data changes reflect immediately across the UI.
I can see the issue - the CSV export is breaking because the date formatting includes commas, which need to be escaped. The date "Thu, Jun 4, 2026" is being split across multiple columns instead of being quoted. I'll fix the CSV format, improve the increase/decrease buttons with better styling, and upgrade the loader design.
Now I'll fix all three issues:
Now let me improve the loader design:
Now let me improve the buttons with better styling:
Now let me reload the browser to verify all the improvements:
The buttons look much better now with the prominent colored primary buttons and the lighter decrease buttons. Let me scroll down to see the history section and test the CSV export:
Now I can see the history section with the export button. Let me test the export function to verify the CSV formatting is fixed:
The CSV is now properly formatted with the date quoted: "Thu, Jun 4, 2026",3,2,5 - this will now import correctly into Excel. Let me scroll back up to test the loader by doing a hard refresh:
Now let me test the new loader by opening the app in a fresh page:
All three improvements have been successfully implemented:
1. CSV Export Format Fixed ✅
"Thu, Jun 4, 2026" is now quoted, preventing misalignment2. Button Styling Enhanced ✅
3. Loader Design Improved ✅
The app is now more polished and user-friendly with better visual hierarchy, proper data export formatting, and an enhanced first impression through the improved loader design.