/* Container */
.bvi__toc--hierarchy {
  border-top: 1px solid #e6e6e6;
  max-width: 920px;
}

/* List reset */
.bvi__toc--hierarchy__container,
.bvi__toc--hierarchy__accordion-content {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Accordion item row */
.bvi__toc--hierarchy__accordion {
  border-bottom: 1px solid #e6e6e6;
}

/* The clickable title row */
.bvi__toc--hierarchy__accordion-title {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;

  background: transparent;
  border: 0;
  padding: 1.1rem 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: #17355b;
  cursor: pointer;
}

/* Plus/Minus indicator (visual only) */
.bvi__toc--hierarchy__accordion-title::after {
  content: "+";
  font-size: 1.4rem;
  line-height: 1;
  color: #2c6b4f;
  margin-left: auto;
}

/* When expanded, show a minus */
.bvi__toc--hierarchy__accordion .bvi__toc--hierarchy__accordion-title[aria-expanded="true"]::after {
  content: "–";
}

/* Content list (children) */
.bvi__toc--hierarchy__accordion-content {
  padding: 0 0 1rem 0;
}

.bvi__decorative-link a {
  display: inline-block;
  padding: 0.5rem 0;
  color: #0b4a8b;
  text-decoration: none;
}
.bvi__decorative-link a:focus,
.bvi__decorative-link a:hover {
  text-decoration: underline;
}

/* Optional: smooth height animation */
.js-bvi-accordion-content {
  overflow: hidden;
  transition: max-height 180ms ease-in-out;
}
.js-bvi-accordion.is-open .js-bvi-accordion-content {
  max-height: 1000px; /* fallback */
}

@media (max-width: 640px) {
  .bvi__toc--hierarchy__accordion-title { font-size: 1.05rem; }
}