.sidebar-nav {
  margin: 0 0 20px;
  padding: 0;
}

.sidebar-nav li {
  display: inline-block;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  font-size: 1em;

  &:hover {
    color: var(--link-color-hover);
  }
}

.sidebar-nav .sidebar-nav-active {
  color: var(--link-color-hover);
  border-bottom-color: var(--link-color-hover);
}

.sidebar-panel {
  display: none;
  animation-fill-mode: forwards;
}
.sidebar-panel-active {
  display: block;
  animation: opacity-show .2s;
  animation-fill-mode: forwards;
}

@keyframes opacity-show {
  from {
    display: none;
    opacity: 0;
  }
  to {
    display: block;
    opacity: 1;
  }
}