Transformed key user-facing pages with modern UI patterns:
**Login Page (sessions/new.html.erb)**:
- Enhanced warning box with gradient background and backdrop blur
- Added arrow indicator to "Learn more" link
- Improved visual hierarchy with better icon sizing
**Signup Page (users/new.html.erb)**:
- Complete rewrite from Bootstrap 2 to Bootstrap 5
- Modern card-based layout matching login page aesthetic
- Icon-enhanced form inputs with proper labels
- Side-by-side first/last name fields
- Gradient info box with training environment notice
- Proper form validation attributes
**Dashboard Home (dashboard/home.html.erb)**:
- Replaced old .span12/.row-fluid with modern grid
- Clean card-based layout with shadow
- Icon-enhanced header and buttons
- Loading spinner states during chart transitions
- Active button state indicators for chart type toggle
- Turbolinks compatibility
- Improved accessibility with ARIA labels
All pages now feature:
- Bootstrap 5 components and utilities
- Bootstrap Icons integration
- Rounded corners and modern spacing
- Gradient accents and visual depth
- Smooth transitions and hover states
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Ken Johnson