/* H2 – Sections principales */
.md-typeset h2 {
  font-weight: 700;
  border-left: 4px solid #00bcd4;
  padding-left: 12px;
  margin-top: 2em;
}

/* H3 – Sous-sections */
.md-typeset h3 {
  font-weight: 600;
  color: #90caf9;
}

/* H4 – détails */
.md-typeset h4 {
  font-weight: 500;
  opacity: 0.9;
}