Joakim
4ef032cad6
refactor: simplify CSS variables by removing 10 unused/redundant variables
- Remove 6 unused z-index variables (dropdown, sticky, fixed, popover)
- Remove unused font-size-lg and bg-dark variables
- Remove 4 overly-specific input variables, use existing spacing/color vars
- Consolidate form styling to use core variables for consistency
- Add internal CSS file to gitignore to prevent auto-generation conflicts
- Reduces variable count from 38→28 (26% reduction) for easier maintenance