Touch-screen message actions get a 44x44 hit once gap and bottom margin open to 20px; fine-pointer geometry stays 27x34. Tablet CSS cuts at 1023 to match sidebarViewportForWidth. Report centre/reader join the 767 mobile cut; TOC keeps 860. Occupies BUG-695/696/697.
Dark muted surfaces missed WCAG AA; action and tertiary tokens plus a 32-pair contract close that. Hit targets, remaining-count, and Enter-to-send follow the interaction audit without changing visual sizes.
Co-authored-by: Cursor <cursoragent@cursor.com>