document.addEventListener('click', (event) => {
if (event.target.dataset.expandContent) { const expander = event.target.dataset const sibling = event.target.nextElementSibling if (sibling.classList.contains('expanded')) { sibling.classList.remove('expanded') sibling.classList.add('collapsed') } else { sibling.classList.add('expanded') sibling.classList.remove('collapsed') } }
})