.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid #ccc;
  padding: 10px;
  border-radius: 5px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.menu-item {
  cursor: pointer;
  padding: 10px 15px;
  background-color: #f5f5f5;
  border-radius: 5px;
}

.menu-item:hover {
  background-color: #ddd;
}