.conference-archive {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin: 2.5rem 0;
}

.conference-series h2 {
  border-bottom: 2px solid #333;
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.conference-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.conference-list li {
  margin-bottom: 1.5rem;
}

.conference-list a {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
}

.conference-list a:hover {
  text-decoration: underline;
}

.conference-list span {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.9rem;
  color: #666;
}

@media (max-width: 800px) {
  .conference-archive {
    grid-template-columns: 1fr;
  }
}