.nav-item {
  position: relative;
  transition: color 0.3s ease;
  cursor: pointer;
}

.nav-item.selected-nav-item {
  color: #183B67;
  font-weight: bold;
}

.nav-item.selected-nav-item::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #183B67;
}