/* Shared chapter navigation for cases and services. */
.chapter-nav {
  position: sticky;
  top: var(--header-height);
  z-index: 8;
  border-block: 1px solid var(--color-border-soft);
  background: var(--color-surface);
  backdrop-filter: blur(14px);
}
.chapter-nav__inner {
  display: flex;
  justify-content: center;
  width: min(100%, var(--container));
  margin: 0 auto;
  padding: 0 var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
  list-style: none;
}
.chapter-nav__inner::-webkit-scrollbar {
  display: none;
}
.chapter-nav__inner > li {
  flex: 0 0 auto;
}
.chapter-nav a {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 9px;
  padding: 16px clamp(18px, 2.3vw, 36px) 16px 0;
  color: var(--color-muted);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}
.chapter-nav a > span:first-child {
  color: var(--color-accent);
  font-size: 0.59rem;
}
.chapter-nav a.is-active,
.chapter-nav a[aria-current="location"],
.chapter-nav a:hover,
.chapter-nav a:focus-visible {
  color: var(--color-text);
  font-weight: 500;
}
@media (max-width: 767px) {
  .chapter-nav a {
    padding-block: 14px;
    font-size: 0.58rem;
  }
}