.sidebar {
  min-height: 100vh;
  border-right: 1px solid #e5e5e5;
}
.sidebar .nav-link.active {
  color: #007bff;
  font-weight: bold;
}
.sidebar .nav-link {
  color: #333;
}
.sidebar .nav-link:hover {
  background: #f8f9fa;
  color: #007bff;
}