.sidebar {
  width: 100%;
  background-color: #f9f9f9;
  padding: 15px;
  border: 1px solid #ddd;
  font-family: Arial, sans-serif;
  font-size: 15px;
}

.menu-section {
  margin-bottom: 20px;
}

.menu-section h3 {
  font-size: 17px;
  color: #006699;
  margin-bottom: 10px;
  border-bottom: 1px solid #ccc;
  padding-bottom: 4px;
}

.menu-item {
  display: block;
  padding: 8px 12px;
  margin: 4px 0;
  border-radius: 4px;
  color: #003399;
  text-decoration: none;
  transition: background-color 0.2s ease-in-out;
}

.menu-item:hover {
  background-color: #e6f2ff;
  border-left: 4px solid #3399ff;
  text-decoration: none;
}