Fixed two UI bugs in button styling:
**1. Back-to-top button position in mobile:**
- BEFORE: Button was included in flexbox layout but not positioned (defaulted to left)
- AFTER: Excluded from flexbox layout, positioned at bottom-right (1.5rem) - same as desktop
- Mobile flexbox layout now has 5 buttons (download, print, shortcuts, theme, info)
- Back-to-top stays independently positioned at bottom-right corner
**2. Consistent hover effects for all buttons:**
- BEFORE: Only info and shortcuts buttons had enhanced box-shadow on hover
- AFTER: All buttons (download, print, shortcuts, info, back-to-top) have consistent hover effects
- Added `box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4) !important` to mobile hover states
- Creates unified "edge glow" effect across all button hovers
**Technical changes:**
- Split mobile button reset into two groups (flexbox buttons vs back-to-top)
- Enhanced mobile hover effect with box-shadow for visual consistency
- Maintains desktop behavior (back-to-top at bottom-right: 2rem)
Files modified: static/css/main.css
juanatsap
cc6ca6e6ba