/* ── Accordion (native details/summary) ── */
.accordion-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion-group h2 {
  margin-bottom: var(--space-4);
}

.accordion-item {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-surface);
}

.accordion-item[open] {
  border-color: var(--color-gray-300);
}

.accordion-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  min-height: 44px;
  transition: background-color var(--transition-fast);
}

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

.accordion-item summary::marker {
  display: none;
  content: '';
}

.accordion-item summary:hover {
  background-color: var(--color-gray-50);
}

.accordion-item summary::after {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  transition: transform var(--transition-fast);
}

.accordion-item[open] summary::after {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 0 var(--space-6) var(--space-6);
}

.accordion-body p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.accordion-body ul {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.accordion-body li {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-4);
  position: relative;
}

.accordion-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
}