@media (min-width: 576px) {
  .nav-item {
    font-size: 16px;
  }
}

.nav-link {
  position: relative;
}

.nav-link:before {
  display: block;
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #2925f4;
  transition: width 1s ease;
}

.nav-link:hover:before {
  width: 100%;
}