Contact
This is basically 2 layers: one for the blob shapes (trigger + card bg) and one for the real content (text + avatars). The blob layer goes through the goo filter, so when the card starts tiny (scale: 0) near the trigger (y = cardHeight / 1.5 + gap) and moves up to y: 0, both shapes melt together for a moment and then split cleanly. Card position is bottom: triggerHeight + gap, so spacing stays stable even if button size changes. Normal mode uses spring motion (close is a bit snappier), and content fades in a little late + fades out fast so it stays readable; slow mode just switches to longer tweens.