/* A short, consistent header with native, keyboard-accessible disclosures. */
.site-header .site-nav > ul { gap: .5rem; }
.site-header .nav-group { position: relative; }
.site-header .nav-disclosure { position: relative; }
.site-header .site-nav .nav-top-link {
  display: inline-flex; align-items: center; gap: .5rem; min-height: 2.75rem;
  padding: .5rem .75rem; color: var(--ink-muted); font: 500 .9375rem/1.5 var(--font-sans);
  letter-spacing: 0; text-transform: none; white-space: nowrap; cursor: pointer;
}
.nav-disclosure > summary { list-style: none; }
.nav-disclosure > summary::-webkit-details-marker { display: none; }
.nav-chevron { width: .375rem; height: .375rem; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-.125rem); transition: transform .15s; }
.nav-disclosure[open] > summary .nav-chevron { transform: rotate(225deg) translate(-.0625rem, -.0625rem); }
.nav-disclosure > summary:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: .25rem; }
.site-header .site-nav .nav-top-link:is(:hover, [aria-current]),
.site-header .nav-disclosure[open] > summary { color: var(--ink-strong); }
.site-header .nav-disclosure .nav-panel {
  position: absolute; top: calc(100% + .625rem); left: 0; z-index: 110;
  display: grid; width: 19rem; max-width: calc(100vw - 2rem); gap: .125rem;
  max-height: var(--nav-panel-height, 50dvh); overflow-y: auto; overscroll-behavior: contain;
  padding: .5rem; border: 1px solid var(--rule-strong); border-radius: .75rem;
  background: var(--canvas); box-shadow: var(--shadow-raised); list-style: none; margin: 0;
}
.site-header .nav-disclosure:not([open]) > .nav-panel { display: none; }
.site-header .site-nav .nav-panel a {
  display: flex; align-items: flex-start; flex-direction: column; gap: .1875rem;
  min-height: 3.75rem; padding: .625rem .75rem; border-radius: .375rem;
  color: var(--ink-strong); font: 500 .9375rem/1.4 var(--font-sans); letter-spacing: 0; text-transform: none;
}
.site-header .site-nav .nav-panel a::after { display: none; }
.site-header .site-nav .nav-panel a:hover { background: var(--surface-raised); }
.nav-item-label { display: block; }
.site-header .site-nav .nav-panel .nav-item-note { color: var(--ink-muted); font-size: .875rem; font-weight: 400; }
.site-header .nav-panel a[aria-current] .nav-item-label { color: var(--institutional); }
.site-header .header-signin {
  display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem;
  padding: .5rem .875rem; border: 1px solid var(--rule-strong); border-radius: 999px;
  color: var(--ink-strong); font: 500 .9375rem/1.5 var(--font-sans); white-space: nowrap;
  text-decoration: none; transition: background-color .15s, border-color .15s;
}
.site-header .header-signin:hover { background: var(--surface-raised); border-color: var(--ink-muted); }
.site-header .header-actions { gap: .625rem; }
#haltseal-site .site-header { gap: 1.5rem; }
#haltseal-site .site-header .brand { min-height: 44px; }
#haltseal-site .desktop-nav { margin-left: 1rem; }
#haltseal-site .header-signin { margin-left: auto; }
#haltseal-site .header-contact { margin-left: -.875rem; }
#haltseal-site .site-header .nav-top-link { color: #aaa9a4; }
#haltseal-site .site-header .nav-top-link:is(:hover, [aria-current]),
#haltseal-site .nav-disclosure[open] > summary { color: #f6f5f2; }
:root[data-theme="light"] #haltseal-site .site-header .nav-top-link { color: #55554f; }
:root[data-theme="light"] #haltseal-site .site-header .nav-top-link:is(:hover, [aria-current]),
:root[data-theme="light"] #haltseal-site .nav-disclosure[open] > summary { color: #171815; }
#haltseal-site .site-header .nav-panel a { color: var(--ink-strong); font: 500 .9375rem/1.4 var(--font-sans); letter-spacing: 0; }
#haltseal-site .site-header .header-signin { color: var(--ink-strong); font: 500 .9375rem/1.5 var(--font-sans); }
.mobile-menu-nav .nav-disclosure > summary {
  display: flex; align-items: center; justify-content: space-between; min-height: 3.5rem;
  border-bottom: 1px solid var(--rule-soft); color: var(--ink-strong); font: 550 1.125rem/1.5 var(--font-sans); cursor: pointer;
}
.mobile-menu-nav .nav-panel { display: grid; gap: 0; padding: .375rem 0 .75rem 1rem; margin: 0; list-style: none; }
.mobile-menu-nav .nav-disclosure:not([open]) > .nav-panel { display: none; }
.mobile-menu-nav .nav-panel a { min-height: 2.75rem; font-size: .9375rem; font-weight: 450; border-bottom: 0; }
.mobile-menu-nav .nav-item-note { display: none; }
.mobile-menu-panel .mobile-menu-signin { flex-shrink: 0; min-height: 2.75rem; margin: 1rem 0; color: var(--ink-strong); }
.mobile-menu-panel .mobile-menu-commercial { flex-shrink: 0; margin-top: .5rem; }
.mobile-menu-toolbar { display: flex; justify-content: flex-end; flex-shrink: 0; margin-bottom: .5rem; }
.mobile-menu-close { display: inline-flex; align-items: center; justify-content: center; gap: .625rem; min-height: 2.75rem; min-width: 5rem; padding: .5rem .75rem; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--canvas); color: var(--ink-strong); font: 500 .875rem/1.5 var(--font-sans); cursor: pointer; }
.mobile-menu-close span { font-size: 1.25rem; line-height: 1; }
#haltseal-site .mobile-menu-panel { background: var(--canvas); color: var(--ink-strong); }
#haltseal-site .mobile-menu-panel a:not(.mobile-menu-commercial) { color: var(--ink-strong); }
@media (max-width: 979px) {
  .site-header .header-signin { display: inline-flex; }
  #haltseal-site .site-header { gap: .625rem; }
  #haltseal-site .header-contact { margin-left: 0; }
}
@media (max-width: 479px) {
  .site-header .header-signin { display: inline-flex; }
  #haltseal-site .site-header { padding-inline: 0; gap: .375rem; }
  body:not([data-page="home"]) .header-inner { column-gap: .375rem; }
  body:not([data-page="home"]) .site-header .header-actions { gap: .375rem; }
  body:not([data-page="home"]) .site-header .brand-word { font-size: 18px; }
}
@container (max-width: 12rem) {
  #haltseal-site .site-header .brand-word { display: none; }
  #haltseal-site .site-header .brand-mark { width: 32px; height: 32px; }
  #haltseal-site .site-header .brand { min-width: 44px; justify-content: center; }
  #haltseal-site .home-header-actions { gap: .25rem; }
  body:not([data-page="home"]) .header-inner { column-gap: .25rem; }
  body:not([data-page="home"]) .site-header .header-actions { gap: .25rem; }
}
@media (prefers-reduced-motion: reduce) { .nav-chevron, .site-header .header-signin { transition: none; } }