- Sidebar becomes off-canvas drawer on mobile (<lg), slides in/out
- Mobile top bar with hamburger menu and current page title
- Backdrop overlay when drawer is open, ESC to close
- All tables wrapped in overflow-x-auto with min-width for scroll
- Search/filter bars stack vertically on small screens
- Content padding scales: p-4 (mobile) → p-6 (tablet) → p-8 (desktop)
- Body scroll locked when mobile drawer is open