Single-open FAQ accordion with a top-down text reveal
Three questions on a Radix accordion, single open and collapsible: opening one closes the others, and you can close all three. The plus icon is two bars, so it rotates into a minus.
CSS cannot transition to a height of auto, so Motion animates the height with a linear-gradient mask alongside it. Text is revealed top down instead of sliding up behind a clipped edge, so the last line never drops into place.