:root {
  --bs-primary: #2563eb;  /* blue */
  --bs-success: #15803d;  /* green */
  --bs-warning: #d97706;  /* orange */
  --bs-info:    #0ea5e9;  /* sky */
  --bs-body-bg: #f9fafb;
  --bs-body-color: #111827;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

#out {
  min-height: 8rem;
}

/* Optional polish for list outputs */
#out ol.list-group-numbered > li,
#out ul.list-group > li {
  background-color: #fff;
}