- Added comprehensive mobile navigation system with hamburger menu
- Created new mobile nav files: gn-mobile-nav.css and gn-mobile-nav.js
- Integrated mobile navigation across all 25+ HTML pages
- Updated all Services and Industries pages with mobile nav
- Enhanced responsive design and mobile-first approach
- Added FOUC prevention and improved loading experience
- Updated theme colors and styling consistency
- Added comprehensive documentation (MOBILE_NAV_README.md)
- Fixed relative paths for subdirectory pages
- Improved accessibility features for mobile navigation