Is it accessible?
Yes. It adheres to the WAI-ARIA design pattern with proper aria-expanded, aria-controls, and role="region" attributes.
Is it animated?
Yes. It uses a grid-rows transition with a subtle y-settle for a polished unfold effect. Respects prefers-reduced-motion.
Can I use it controlled?
Yes. Pass value and onValueChange for full controlled state, or use defaultValue for uncontrolled.