.collapsible-toggle {
  width: 100%;
  text-align: left;
  font-size: 1.25rem;
  font-weight: bold;
  padding: 0.75rem 1rem;
  background: #fdfdfd;
  border: 1px solid #ddd;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease, box-shadow 0.3s ease;
  margin: 1rem 0;
   box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.collapsible-toggle:hover {
  background: #f0f0f0;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}

.chevron {
  transition: transform 0.3s ease;
}

.collapsible-content {
  height: 0;
  overflow: hidden;
  padding: 0 1rem;
  transition: height 0.4s ease;
}

.collapsible-section.active .collapsible-content {

}

.collapsible-toggle {
  cursor: pointer;
}

.chevron {
  transition: transform 0.3s ease;
}

.collapsible-section.active .chevron {
  transform: rotate(180deg);
}

.collapsible-section.dimmed {
  opacity: 0.4;
  pointer-events: none;
}

.collapsible-section.dimmed .collapsible-toggle {
  background-color: #f5f5f5;
  cursor: not-allowed;
}