- add svg diagonal stripe patterns for pdf background
- use @media print to apply svg only in pdf export
- keep css gradient for web/screen display
- add _header: '' and _footer: '' to all klausur slides
- add course number (223015b/c) to all slide headers
- widen klausur diagonal stripes from 20/40px to 40/80px
- expand termin-1 with analog vs digital media content
- rename wtf files exercise to hex files
- change code text color from #1e5f8a to #5fb3e4 (brighter blue) in course 223015b
- update code styling in course 223015c for better contrast
- update custom-theme.css with --color-dimmed variable
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
223015b:
- add klausur styles to termin-3, 4, 5
- consistent styles across all 6 termine
223015c:
- h1: darker raspberry (#a02060)
- h2: dark gray almost black (#1f2937)
- section.invert h1: white
- consistent styles across all 3 termine
also:
- add squoosh link and QR code
- update video title to "RIIIIIIIESIG"
- replace i-frame diagram with canon image
