.md-sidebar--secondary .md-nav__link {
  position: relative;
  border-radius: 6px;
  transition: color 0.25s ease, background 0.25s ease, transform 0.2s ease;
}

.md-sidebar--secondary .md-nav__link:hover {
  background: rgba(63, 81, 181, 0.08);
  transform: translateX(3px);
}

.md-sidebar--secondary .md-nav__link--active::before,
.md-sidebar--secondary .md-nav__item--active > .md-nav__link::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -0.55rem;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, #3f51b5, #7986cb);
  content: "";
}