.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.accordion details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.accordion details[open] {
  border-color: var(--color-primary);
  box-shadow: var(--sh-1);
}

.accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  cursor: pointer;
  list-style: none;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-16);
  color: var(--color-ink);
  min-height: 56px;
}

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

.accordion summary::after {
  content: "";
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--dur-fast) var(--ease-out);
}

.accordion details[open] summary::after {
  transform: rotate(45deg);
  color: var(--color-primary);
}

.accordion .accordion__body {
  padding: 0 var(--sp-5) var(--sp-4);
  color: var(--color-ink-muted);
  line-height: var(--lh-base);
}

.accordion .accordion__body p { margin-bottom: var(--sp-3); }
.accordion .accordion__body p:last-child { margin-bottom: 0; }