body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f5f7fa;
  color: #212529;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
  border-bottom: 3px solid #0d6efd;
  padding-bottom: 0.5rem;
}

.card {
  border: none;
  border-radius: 10px;
}

.navbar .nav-link {
  font-weight: 500;
  color: #343a40;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: #0d6efd;
}