:root { color-scheme: light dark; }
body { -webkit-tap-highlight-color: transparent; }
.navbar-brand { font-weight: 700; }
.card { border-radius: 1rem; }
.chart-container { position: relative; height: 220px; }
.chart-container.chart-sm { height: 160px; }

@media (max-width: 768px) {
  .chart-container { height: 180px; }
  .chart-container.chart-sm { height: 140px; }
}

/* Print-friendly styles */
@media print {
  .navbar, header, footer, .d-print-none, form, .btn, .alert { display: none !important; }
  body { background: #fff !important; }
  .card { box-shadow: none !important; border: none !important; }
  .table { font-size: 12px; }
  .table th, .table td { padding: .35rem .5rem !important; }
  main .container { padding-top: 0 !important; }
}