const panel = document.getElementById("panel");
const lessonList = document.getElementById("lesson-list");

panel.addEventListener("click", function () {
  console.log("点击到了外层面板");
});

lessonList.addEventListener("click", function (event) {
  const removeButton = event.target.closest(".remove-btn");

  if (removeButton) {
    event.stopPropagation();
    const currentItem = removeButton.closest(".lesson-item");

    if (currentItem) {
      currentItem.remove();
    }

    return;
  }

  const currentItem = event.target.closest(".lesson-item");

  if (currentItem) {
    currentItem.classList.toggle("active");
  }
});