/* STO navigation: reference card menu, retaining the confirmed full-width header. */
.sto-header { position: sticky; top: 0; overflow: visible; }
.sto-main-nav { justify-content: center; }
.sto-nav-folder > .sto-nav-panel {
  position: absolute;
  top: calc(100% - 18px);
  right: -20px;
  z-index: 50;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: min(440px, calc(100vw - 32px));
  max-height: min(640px, calc(100dvh - 220px));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 24px;
  border: 1px solid #dfe5e4;
  border-top: 3px solid #537480;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 50px #052c3722;
  transform: translateX(var(--sto-panel-shift, 0px));
}
.sto-nav-folder > .sto-nav-panel > .sto-nav-card {
  display: grid;
  align-content: start;
  gap: 7px;
  min-width: 0;
  min-height: 82px;
  padding: 14px;
  border: 1px solid #dfe5e4;
  border-radius: 5px;
  color: #2b4c56;
  background: #faf9f6;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.sto-nav-folder > .sto-nav-panel > .sto-nav-card strong { font-size: 14px; font-weight: 600; line-height: 1.6; }
.sto-nav-folder > .sto-nav-panel > .sto-nav-card small { color: #647773; font-size: 12px; font-weight: 400; line-height: 1.65; overflow-wrap: anywhere; }
.sto-nav-folder > .sto-nav-panel > .sto-nav-card:hover,
.sto-nav-folder > .sto-nav-panel > .sto-nav-card:focus-visible,
.sto-nav-folder > .sto-nav-panel > .sto-nav-card:active { background: #e5eee9; border-color: #87a3a7; }
.sto-nav-folder > .sto-nav-panel > .sto-nav-card:focus-visible { outline: 2px solid #537480; outline-offset: 2px; }
.sto-nav-folder > .sto-nav-panel > .sto-nav-card[aria-current="page"] { border-color: #bd995f; background: #f6efdf; box-shadow: inset 0 3px #bd995f; }
.sto-nav-folder.is-active > summary::before,
.sto-nav-folder > summary:focus-visible::before,
.sto-main-nav > a:focus-visible::after { opacity: 1; transform: scaleX(1); }
.sto-nav-folder > summary:focus-visible { outline: 2px solid #b7834d; outline-offset: 5px; border-radius: 4px; }
.sto-secondary-scroller { display: flex; flex: 1 1 auto; align-items: center; gap: 10px; min-width: 0; }
.sto-secondary-scroller > nav { flex: 1 1 auto; min-width: 0; justify-content: center; overflow-x: auto; scrollbar-width: none; }
.sto-secondary-scroller > nav::-webkit-scrollbar { display: none; }
.sto-secondary-scroller.has-overflow > nav { justify-content: flex-start; }
.sto-secondary-arrow { display: grid; flex: 0 0 auto; width: 36px; height: 36px; place-items: center; padding: 0; border: 1px solid #d6dace; border-radius: 5px; color: #6f603e; background: #fffdfa; cursor: pointer; font-size: 27px; line-height: 1; }
.sto-secondary-arrow[hidden] { display: none; }
.sto-secondary-arrow:disabled { opacity: .35; cursor: default; }
.sto-secondary-arrow:not(:disabled):hover { border-color: #b7834d; background: #f4ebd8; }
.sto-secondary-arrow:focus-visible { outline: 2px solid #b7834d; outline-offset: 2px; }
.sto-secondary-scroller a[aria-current="page"] { color: #805a2e; font-weight: 600; text-decoration: underline; text-underline-offset: 7px; text-decoration-thickness: 2px; }
@media (max-width: 1180px) {
  .sto-main-nav { max-height: var(--sto-menu-available, calc(100dvh - 175px)); overscroll-behavior: contain; }
  .sto-nav-folder > .sto-nav-panel { position: static; width: 100%; max-height: none; margin: 8px 0 14px; padding: 13px; gap: 10px; border: 1px solid #dfe5e4; border-top: 3px solid #537480; background: #f7f7f3; box-shadow: none; transform: none; }
  .sto-secondary-scroller { gap: 8px; }
}
@media (max-width: 820px) {
  .sto-secondary-arrow { width: 44px; height: 44px; }
  .sto-nav-folder > .sto-nav-panel { gap: 9px; }
}
@media (max-width: 480px) {
  .sto-nav-folder > .sto-nav-panel { grid-template-columns: 1fr; }
  .sto-nav-folder > .sto-nav-panel > .sto-nav-card { min-height: 68px; }
}
@media (prefers-reduced-motion: reduce) {
  .sto-nav-folder > .sto-nav-panel > .sto-nav-card { transition: none; }
}