.materials-accordion {
  background-color: var(--ctp-mantle);
  border: 1px solid var(--ctp-surface0);
  border-radius: 0.5rem;
  overflow: visible;
  margin-bottom: 1.5rem;
}

.accordion-header {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
}

.accordion-header::-webkit-details-marker {
  display: none;
}

.header-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-title {
  color: var(--ctp-text);
  font-weight: 500;
  font-size: 0.95rem;
}

#materials-summary-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
  padding: 0 1rem;
  border-top: 1px solid transparent;
  transition:
    max-height 0.3s ease,
    border-color 0.3s ease;
}

#materials-summary-content.open {
  border-top: 1px solid var(--ctp-surface0);
}

.accordion-chevron {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--ctp-text);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.accordion-chevron.open {
  transform: rotate(180deg);
}

.material-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  width: 100%;
  padding: 1rem 0;
}

.material-badge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background-color: var(--ctp-mantle);
  border: 1px solid var(--ctp-surface1);
  border-radius: 6px;
}

.empty-text {
  color: var(--ctp-surface2);
  font-size: 0.875rem;
}