# CLOCK-023: Mobile Responsiveness Issue - /app Tabs and Layout Not Optimized

**Status:** deployed-to-dev  
**Priority:** P1 (High)  
**Product:** clocklane  
**Environment:** DEV – https://clocklane.dev.apps.symph.co/app  
**Reporter:** Zel  
**Created:** 2026-02-18  
**Assignee:** ARIA  

## Description

When accessing https://clocklane.com/app on mobile devices (e.g., iPhone 12 Pro – 390x844), the layout is not fully responsive.

### Current Behavior
- The left sidebar (Register, Products, Timesheets, Reports, Settings) remains fixed and consumes most of the screen
- Content is cut off or difficult to view and interact with
- Tabs and main content areas are not properly adjusted for smaller screens
- Poor usability and limited visibility of core POS functions

### Expected Behavior
- The /app interface should be fully responsive across mobile screen sizes
- Proper layout adjustments (e.g., collapsible sidebar, adaptive content width)
- Usability in both portrait and landscape modes

## Solution Implemented (2026-07-14)

**File:** `src/components/ClocklanePOS.tsx`

### Changes:
1. **`useIsMobile()` hook** — Detects screens < 768px breakpoint
2. **`MobileLayout` wrapper** — Adds mobile header with hamburger menu icon
3. **Collapsible sidebar** — On mobile:
   - Sidebar hidden by default
   - Hamburger menu (☰) in top header toggles sidebar
   - Sidebar slides in as 280px overlay from left
   - Semi-transparent backdrop to close on tap outside
   - X button in sidebar header to close
4. **Nav item behavior** — Tapping a nav item closes sidebar automatically on mobile
5. **Full-width content** — Main content area uses 100% width when sidebar hidden

### Technical Details:
- Breakpoint: 768px (standard mobile/tablet boundary)
- Sidebar width: 280px on mobile (vs 220px on desktop)
- Z-index: 1000 for mobile overlay
- Smooth transitions for open/close animations

## Notes

- Deployed to DEV for testing
- Awaiting Zel's verification on mobile device
- Once confirmed, will merge to main for production

## References

- Test device: iPhone 12 Pro (390x844)
