ebd72cf16c
Root cause: lipgloss Width(maxW) = content area inside border, border adds 2 chars extra. - halfW was t.width/2, should be t.width/2-2 (reserve border per pane) - innerW was maxW-4, should be maxW-2 (padding only, not border) - Each pane total = maxW + 2 (content + border)