main {
  display: flex;
  gap: 3rem;
}

main .grid {
  display: flex;
  flex-direction: column;
  flex: 3;
}

main aside {
  flex: 1;
}

section {
  width: 100%;
  margin: 0 auto 10px auto;
  padding: 0 10px;
}

section h2 {
  color: #2e7d32; /* vert foncé */
  margin-bottom: 10px;
  border-bottom: 3px solid #28a745; /* souligné vert vif */
  padding-bottom: 6px;
  width: fit-content;
  font-size: 1.8rem;
}

/* Boutons de navigation entre les éléments d'une section */
.nav-buttons {
  display: flex;
  gap: 10px;
}

.nav-buttons button {
  background: none;
  border: 2px solid #28a745;
  color: #28a745;
  font-size: 1.5rem;
  padding: 4px 12px;
  margin-left: 10px;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-buttons button:hover {
  background-color: #28a745;
  color: white;
}

@media (max-width: 768px) {
  main {
    flex-direction: column;
  }

}