- Scale time grid height dynamically based on time increment (1530px/2970px)
- Add quarter-mode CSS classes for 15-minute blocks (30px each, same as 30-min blocks)
- Update pixel-to-time conversion functions with 2px:1min scaling in 15-min mode
- Generate correct number of time slots (4 per hour in 15-min mode)
- Remove unnecessary final boundary time label and related CSS
- Fix CSS grid layout by removing malformed CSS syntax
- All time-related containers scale properly between 30-minute and 15-minute modes
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>