We can prevent double-tap zoom on iOS by adding a meta tag and some touch-action CSS. Here's how: ```javascript:index.php // Add this meta tag in the head section // ... existing head content ... ``` This combination will: 1. The meta tag prevents zooming on iOS 2. `touch-action: manipulation` prevents double-tap zoom while keeping scrolling and single-tap behaviors 3. The user-select properties prevent text selection which can interfere with touch interactions 4. We specifically re-enable text selection for the textarea These changes should prevent the zoom behavior while maintaining normal touch functionality.