/**
 * Shadow-DOM-safe `event.target`.
 *
 * `event.target` is re-targeted at shadow-root boundaries, so a listener on
 * a shadow host sees the host as the target rather than the actual
 * originating node. `composedPath()[0]` returns the true origin. Older
 * browsers without shadow DOM fall back to `event.target`.
 */
export function getTarget(event: Event): EventTarget | null {
	if ("composedPath" in event) {
		const path = (event as Event).composedPath();
		return path[0] ?? (event as Event).target;
	}
	return (event as Event).target;
}