body {
  min-height: 100vh;
  background-color: #f8f9fa;
}

.sidebar {
  min-height: calc(100vh - 48px);
  background-color: #212529 !important;
}

.sidebar .nav-link {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: 4px;
  margin: 1px 6px;
  transition: background-color 0.15s;
}

.sidebar .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
}

.card {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: none;
}

.card-header {
  background-color: #f1f3f5;
  border-bottom: 1px solid #dee2e6;
}

footer {
  font-size: 0.8rem;
}

@media (max-width: 767.98px) {
  .sidebar {
    min-height: auto;
  }
}