The reflow that caused the end-of-slide hitch was never the content slide itself — it was
SHOWING the list column during the slide and hiding it (display:flex->none) at the end. So
keep .chatcol display:none the whole time (untouched) and animate ONLY .content: it pushes in
from translateX(12%)->0 with an opacity fade, on its already-promoted GPU layer. Real slide
motion, and nothing to reflow when it ends. (This also explains the batch126 breakage: that
made .chatcol position:absolute, disturbing the touch/layout target — not touched here.)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Sravan
9bb74cffd2
