- Add full responsive sidebar support for screens 600px+ height with three breakpoints (900px, 750px, 650px)
- Implement consistent spacing for all sidebar controls (view-selector, theme-selector, style-selector, add-calendar-button)
- Add calendar header compactness scaling based on screen height (padding, font sizes, min-heights)
- Implement width-based responsive event text sizing for better space utilization
- Fix login page theme inheritance issue by resetting theme to default on logout
- Remove problematic position:relative style from external calendar items that caused color picker interference
- Standardize external-calendar-list margin to 2px across all breakpoints
- Add proper overflow handling and minimum heights to ensure all sidebar components remain visible
- Scale event titles and times progressively smaller on narrower viewports (1200px, 900px, 600px breakpoints)
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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