h2,
h3,
h4,
h5,
h6 {
  font-weight: bold !important;
}

.md-typeset h2 {
  border-top: 1px solid var(--md-typeset-color);
  padding-top: 40px;
}

.md-typeset h3 {
  /* Original styling */
  font-size: 1.25em;
  font-weight: 400;
  letter-spacing: -.01em;
  line-height: 1.5;
  margin: 1.6em 0 0.8em;

  /* Custom */
  border-top: 0.5px solid var(--md-typeset-color);
  padding-top: 40px;
}

.md-nav__item--section {
  margin-top: 32px;
}