.navbar .btn-outline-light:hover {
  color: var(--bs-dark);
}

.navbar-sticky {
  opacity: 0.9;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.5);
}

.header {
  background: url(../images/IcelandGlacialRiverS.jpg) center center no-repeat;
  background-size: cover;
}

.promo {
  text-align: center;
  border-radius: 20px;
  background-color: rgba(255, 255, 255, 0.6);
}

.nav {
  --bs-nav-link-hover-color: black;
}