body { min-height: 100vh; }
.card-stat { border-left: 4px solid #0d6efd; }
.navbar-brand { font-weight: 600; }
pre { white-space: pre-wrap; word-break: break-word; }
.table td { vertical-align: middle; }
@media (max-width: 768px) {
  .navbar-nav .nav-link { padding-left: 0.5rem; }
}