:root {
  --nb-primary: #1975d7;
  --nb-accent:  #dde2cc;
  --nb-seite:   #f0f2f5;
}
body {
  background-color: var(--nb-seite) !important;
}
nav.nb-navbar {
  background-color: var(--nb-primary) !important;
}
.nb-btn-accent {
  background-color: var(--nb-accent) !important;
  border-color: var(--nb-accent) !important;
  color: #212529 !important;
}
.nb-btn-accent:hover,
.nb-btn-accent:focus {
  filter: brightness(0.88);
  background-color: var(--nb-accent) !important;
  border-color: var(--nb-accent) !important;
  color: #212529 !important;
}