Relocate the slider control from a separate container below the level display to inside the level pane itself, positioned above the abacus. Changes: - Move slider markup into main level display pane - Position between level info and abacus display - Remove separate slider container that was below - Adjust spacing for better visual hierarchy Improves UX by keeping the control close to the content it affects. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>