- Swipe left/right on mobile to go between chapters (60px threshold,
ignores vertical-dominant gestures so scrolling still works)
- Left/right arrow keys on desktop navigate chapters (skips inputs)
- Fixed side ‹ › buttons at viewport midpoint for one-tap chapter nav;
disappear when at the first/last chapter, hidden in draw mode
- Wide toggle (⊞) switches between narrow reading column (max-w-3xl)
and full-width two-column layout (max-w-7xl, md:columns-2); persisted
to localStorage so the preference survives page reloads
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nmemmert
f2de985190