.letter-section {
  margin-bottom: var(--spacing-xl);
}
.letter-section:last-child {
  margin-bottom: 0;
}
.letter-heading {
  align-items: center;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-primary);
  display: flex;
  font-size: 1.5rem;
  font-weight: 700;
  gap: var(--spacing-md);
  margin: 0 0 var(--spacing-md);
  padding-bottom: var(--spacing-md);
}
.letter-heading:before {
  border-radius: var(--border-radius-sm);
  content: '';
  height: 1.5rem;
  width: 3px;
}
.tier--kindred .letter-heading {
  color: var(--color-tier-kindred);
}
.tier--kindred .letter-heading:before {
  background: var(--color-tier-kindred);
}
.tier--keepers .letter-heading {
  color: var(--color-tier-keepers);
}
.tier--keepers .letter-heading:before {
  background: var(--color-tier-keepers);
}
.tier--sages .letter-heading {
  color: var(--color-tier-sages);
  text-shadow: 0 0 1px rgba(0, 0, 0, 0.3);
}
.tier--sages .letter-heading:before {
  background: var(--color-tier-sages);
}
@media (max-width: 768px) {
  .letter-section {
    margin-bottom: var(--spacing-md);
  }
  .letter-heading {
    font-size: 1.2rem;
  }
}