Two-Tier Navigation with Expandable Mobile Menu and Page Header

This layout uses Tailwind CSS to create a two-tier navigation system with a top navbar and sidebar menu, optimized for desktop and mobile screens. Key features: - Top navbar with left branding, center search, and right user menu - Hamburger menu button reveals full width mobile sidebar - Mobile sidebar has branding, nav links, user profile/settings - Page header with h1 title The two-tier setup separates primary and secondary navigation for easy access on desktop, while collapsing to an expandable mobile layout. Header provides prominent page title. Uses Tailwind utilities for styling including flexbox, responsive display, hover states, etc.