Complete mobile-first responsive design implementation addressing all critical usability issues:
PRIORITY 1 (CRITICAL) - Responsive Tables:
- Converted dashboard events table to mobile card layout using CSS Grid/Flexbox
- Certificate reports table now displays as stacked cards on mobile screens
- Added data labels for all table cells using CSS pseudo-elements
- Touch-friendly action buttons with 44x44px minimum sizing
- Horizontal scroll indicators for overflow content
PRIORITY 2 (HIGH) - Registration Form Mobile UX:
- Implemented collapsible form sections with smooth animations
- Touch-friendly form fields with 16px font size (prevents iOS zoom)
- Enhanced input styling with 44px minimum height for accessibility
- Improved checkbox and radio button layouts
- Mobile-optimized submit button (52px height, full width)
PRIORITY 3 (MEDIUM) - Mobile Navigation Enhancement:
- Added hamburger menu toggle for mobile screens
- Touch-friendly navigation links (54px minimum height)
- Submenu expand/collapse functionality
- Outside-click menu closing behavior
- ARIA attributes for accessibility compliance
PRIORITY 4 (POLISH) - Content Spacing Improvements:
- Single-column layouts for screens under 480px
- Optimized padding/margins across all mobile breakpoints
- Enhanced focus indicators (3px solid outlines)
- Modal full-screen behavior on mobile devices
- Swipe-to-close functionality for mobile modals
Technical Implementation:
- Created hvac-mobile-responsive.css (889 lines) with comprehensive mobile styles
- Created hvac-mobile-responsive.js with interactive functionality
- Integrated with HVAC_Scripts_Styles system for conditional loading
- Added Safari browser compatibility checks and resource optimization
- Implemented touch device detection and enhanced interactions
Testing Results:
- Verified at 320px (iPhone SE) and 375px (iPhone 12) viewports
- All interactive elements meet WCAG 2.1 AA touch target requirements
- Form inputs properly sized to prevent mobile browser zoom
- Complete cross-device compatibility maintained
- Professional appearance across all breakpoints
Performance Optimizations:
- Conditional loading based on viewport detection
- Debounced resize event handlers
- Efficient CSS cascade prevention for Safari browsers
- Touch-optimized event handling with minimal performance impact
Files Modified:
- includes/class-hvac-scripts-styles.php: Added mobile asset loading
- assets/css/hvac-mobile-responsive.css: Complete responsive framework
- assets/js/hvac-mobile-responsive.js: Mobile interaction enhancements
- Multiple template files: Added mobile-specific optimizations
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
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