body {
  background-color: #f8f9fa;
}

.navbar-brand {
  font-size: 1.1rem;
  letter-spacing: 0.03em;
}

.card {
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
  border-radius: .5rem;
}

.card-header {
  background-color: #fff;
  border-bottom: 1px solid #e9ecef;
  border-radius: .5rem .5rem 0 0 !important;
}

.table > :not(caption) > * > * {
  vertical-align: middle;
}

.badge {
  font-weight: 500;
}

@media (max-width: 576px) {
  h2 { font-size: 1.4rem; }
}