- Hide montage toggles and dim furniture rows when quantity is 0
- Animate running totals bar with CSS transform instead of display toggle
- Add directional slide transitions (forward/backward) between steps
- Add +/- stepper buttons around quantity inputs for better affordance
- Increase mobile tap targets to 44px and show active step label
- Add "Edit" links to summary section headings for quick navigation
- Add "Step X of Y" counter below progress bar
- Add summaryEdit, stepLabel, stepOf l10n strings to both entry points
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>