- backface-visibility hides elements visually but not to pointer events; disable pointer events on the hidden face explicitly so the X button on the back face is clickable and the front face doesn't intercept clicks - Add .scene-selected:hover rule so green ring is not overwritten by the higher-specificity .scene:hover box-shadow Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>