.subjects-nav {
  list-style: none;
  position: -webkit-sticky;
  position: sticky;
  top: var(--logo-height);
  margin: 0 0 1.5em;
  max-width: 340px;
}

.subjects-nav a {
  text-decoration: none;
  color: var(--gray);
  transition: font-size 200ms;
  padding-top: .625em;
  padding-bottom: .5em;
  line-height: 1.1;
  display: inline-block;
  position: relative;
}
.subjects-nav a:after {
  content: '';
  display: inline-block;
  position: absolute;
  bottom: 0; left: 0;
  height: 1px;
  width: 1.5em;
  background-color: currentColor;
}
.subjects-nav a:hover {
  color: var(--black);
}

.subjects-nav .active a {
  color: var(--black);
  font-size: 1.5em;
  transition-delay: 100ms;
}



.subjects {
  margin-top: var(--logo-height);
}

hr.line {
  width: 2.5rem;
  color: var(--black);
  margin-left: 0;
  margin-bottom: 1rem;
}