/* Scoped navigation drawer — warm ivory and the site's established gold. */
.navigation-toggle {
  flex: 0 0 38px;
  color: var(--gold-dark);
  border: 1px solid var(--gold-border);
  background: var(--gold-subtle);
}
.navigation-toggle svg { width: 20px; height: 20px; }
.navigation-toggle:hover { background: var(--gold); color: #17140b; }

.navigation-layer {
  position: fixed;
  inset: 0;
  z-index: 1400;
  pointer-events: none;
  visibility: hidden;
  transition: visibility 0s linear 400ms;
}
.navigation-layer.is-open {
  pointer-events: auto;
  visibility: visible;
  transition-delay: 0s;
}
.navigation-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: rgba(24, 20, 10, .48);
  opacity: 0;
  transition: opacity 390ms ease;
  cursor: default;
}
.navigation-layer.is-open .navigation-backdrop { opacity: 1; }

.navigation-drawer {
  position: absolute;
  inset-block: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  width: min(430px, 86vw);
  max-height: 100vh;
  max-height: 100dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  touch-action: pan-y;
  padding: clamp(1.25rem, 4vw, 2.1rem);
  background: var(--site-background);
  border-left: 1px solid var(--gold-border);
  box-shadow: -18px 0 54px rgba(32, 26, 10, .18);
  transform: translate3d(102%, 0, 0);
  transition: transform 400ms cubic-bezier(.22, .78, .22, 1);
  outline: none;
}
.navigation-layer.is-open .navigation-drawer { transform: translate3d(0, 0, 0); }

.navigation-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--border);
}
.navigation-eyebrow {
  display: block;
  margin-bottom: .22rem;
  color: var(--gold-dark);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .035em;
}
.navigation-heading h2 {
  color: var(--text);
  font-size: 1.55rem;
  font-weight: 900;
  line-height: 1.3;
}
.navigation-close {
  display: grid;
  place-items: center;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  color: var(--text-muted);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 50%;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}
.navigation-close svg { width: 19px; height: 19px; }
.navigation-close:hover { color: var(--text); background: var(--gold-subtle); border-color: var(--gold-border); }

.navigation-links {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding-top: 1.15rem;
}
.navigation-link,
.navigation-group-toggle {
  display: flex;
  align-items: center;
  gap: .8rem;
  width: 100%;
  min-height: 54px;
  padding: .68rem .8rem;
  color: var(--text);
  text-align: right;
  font: inherit;
  font-size: .94rem;
  font-weight: 700;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform .18s ease;
}
.navigation-link:hover,
.navigation-group-toggle:hover {
  color: var(--gold-dark);
  background: var(--gold-subtle);
  border-color: var(--gold-border);
}
.navigation-link:active { transform: translateY(1px); }
.navigation-link-icon {
  display: grid;
  place-items: center;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  color: var(--gold-dark);
  background: linear-gradient(145deg, #fbf3d8, #f4e9c6);
  border: 1px solid rgba(201, 162, 39, .22);
  border-radius: 11px;
}
.navigation-link-icon svg { width: 19px; height: 19px; }
.navigation-chevron,
.navigation-external {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-inline-start: auto;
  color: var(--gold-dark);
}
.navigation-external { width: 15px; height: 15px; }
.navigation-group {
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}
.navigation-group-toggle { min-height: 54px; }
.navigation-disclosure {
  flex: 0 0 17px;
  width: 17px;
  height: 17px;
  margin-inline-start: auto;
  color: var(--gold-dark);
  transition: transform .2s ease;
}
.navigation-group-toggle[aria-expanded="false"] .navigation-disclosure { transform: rotate(90deg); }
.navigation-grade-list {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 300ms cubic-bezier(.2, .7, .25, 1), opacity 220ms ease;
}
.navigation-grade-list.is-expanded {
  grid-template-rows: 1fr;
  opacity: 1;
}
.navigation-grade-list-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-content: start;
  gap: .4rem;
  min-height: 0;
  overflow: hidden;
  padding: .25rem .35rem .4rem;
}
.navigation-grade-link {
  display: flex;
  align-items: center;
  min-height: 43px;
  padding: .5rem .65rem;
  color: var(--text-muted);
  font-size: .85rem;
  font-weight: 700;
  line-height: 1.45;
  background: var(--surface);
  border: 1px solid rgba(232, 224, 204, .85);
  border-radius: 9px;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.navigation-grade-link:hover {
  color: var(--gold-dark);
  background: #fffaf0;
  border-color: var(--gold-border);
}
.navigation-empty {
  grid-column: 1 / -1;
  padding: .4rem .35rem;
  color: var(--text-muted);
  font-size: .82rem;
}
.navigation-search { cursor: pointer; }
.navigation-bot-link .navigation-link-icon { color: #8d711b; }
.navigation-footer {
  margin-top: auto;
  padding-top: 1.2rem;
  color: var(--text-muted);
  font-size: .78rem;
  border-top: 1px solid var(--border);
}
.navigation-drawer :focus-visible,
.navigation-toggle:focus-visible {
  outline: 3px solid rgba(201, 162, 39, .52);
  outline-offset: 3px;
}

@media (max-width: 480px) {
  .navigation-drawer {
    width: min(430px, 86vw);
    padding: 1.2rem 1rem max(1.2rem, env(safe-area-inset-bottom));
    border-left: 0;
  }
  .navigation-heading { padding-bottom: 1.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  .navigation-backdrop,
  .navigation-drawer,
  .navigation-close,
  .navigation-link,
  .navigation-group-toggle,
  .navigation-disclosure {
    transition-duration: .01ms;
  }
  .navigation-layer { transition-duration: .01ms; transition-delay: 0s; }
  .navigation-grade-list { transition-duration: .01ms; }
}