/* Navigation behavior and motion from the NCB reference; labels follow Excel. */
:root { --nav-height: 76px; }
html { scroll-padding-top: calc(var(--nav-height) + 14px); }
.hero { padding-top: 0; }
.site-header {
  position: fixed;
  inset: 0 0 auto;
  height: var(--nav-height);
  z-index: 50;
  color: #fff;
  background: transparent;
  border-bottom: 1px solid transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.site-header.is-scrolled,.site-header.is-menu-open {
  background: rgba(6,17,44,.82);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: rgba(255,255,255,.08);
  box-shadow: 0 10px 40px rgba(0,0,0,.28);
}
.nav-shell {
  height: 100%;
  width: min(1320px,calc(100% - 64px));
  display: grid;
  grid-template-columns: max-content minmax(0,1fr) max-content;
  gap: clamp(18px,2vw,30px);
}
.desktop-nav { min-width: 0; margin: 0; justify-content: center; gap: 0; }
.desktop-nav > a,.desktop-nav > button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 8px 9px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: rgba(255,255,255,.82);
  font: 600 13.2px/1.5 var(--sans);
  letter-spacing: -.08px;
  white-space: nowrap;
  transition: color .25s var(--ease),background .25s var(--ease);
}
.desktop-nav > .nav-active { color: #f4dca0; }
.desktop-nav > [data-nav]::after {
  content: '';
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: 5px;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(90deg,transparent,#f4dca0,transparent);
  opacity: 0;
  transform: scaleX(.4);
  transition: transform .25s var(--ease),opacity .25s var(--ease);
}
.desktop-nav > .nav-active::after { opacity: .78; transform: scaleX(.55); }
.desktop-nav > :focus-visible { color: #fff; background: rgba(255,255,255,.08); outline-offset: 3px; }
.desktop-nav > .nav-active:focus-visible::after { opacity: 1; transform: scaleX(1); }
.site-header .button.header-cta { min-height: 44px; padding: 12px 17px; font-size: 13px; margin-left: 0; }
.menu-toggle {
  display: none;
  position: relative;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.06);
  color: white;
}
.menu-toggle > span {
  position: absolute;
  top: 21px;
  left: 11px;
  right: 11px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform .3s var(--ease),opacity .2s var(--ease),top .3s var(--ease);
}
.menu-toggle > span:first-child { top: 15px; }
.menu-toggle > span:last-child { top: 27px; }
.menu-toggle[aria-expanded="true"] { border-color: rgba(255,255,255,.2); }
.menu-toggle[aria-expanded="true"] > span:first-child { top: 21px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] > span:last-child { top: 21px; transform: rotate(-45deg); }
.mobile-menu,.mobile-menu:not([hidden]) {
  position: fixed;
  inset: var(--nav-height) 0 auto;
  width: auto;
  max-height: calc(100dvh - var(--nav-height));
  padding: 16px clamp(20px,5vw,40px) max(28px,env(safe-area-inset-bottom));
  z-index: 49;
  background: rgba(6,17,44,.97);
  border-bottom: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 16px 32px #03132b24;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  transform: translateY(-12px);
  pointer-events: none;
  animation: none;
  transition: transform .35s var(--ease),opacity .35s var(--ease);
  scrollbar-width: thin;
  scrollbar-color: #435872 transparent;
}
.mobile-menu.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.mobile-menu nav { max-width: 720px; margin: 0 auto; gap: 4px; }
.mobile-menu [data-nav] {
  position: relative;
  min-height: 54px;
  padding: 15px 8px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  color: rgba(255,255,255,.9);
  font: 600 17px/1.5 var(--sans);
  transition: color .25s var(--ease),background .25s var(--ease);
}
.mobile-menu [data-nav].nav-active { color: #f4dca0; }
.mobile-menu .nav-active::after { content: none; }
.mobile-menu .mobile-menu-cta {
  display: flex;
  text-align: center;
  color: #0a2e63;
  background: linear-gradient(135deg,#fbeac0,#e4c27c);
  border: 0;
  padding: 15px 24px;
  margin-top: 16px;
  font-size: 15px;
}
.menu-scrim {
  inset: var(--nav-height) 0 0;
  z-index: 48;
  opacity: 0;
  pointer-events: none;
  background: rgba(3,17,40,.18);
  backdrop-filter: none;
  transition: opacity .35s var(--ease);
}
.menu-scrim.is-open { opacity: 1; pointer-events: auto; }
.mobile-menu[hidden],.menu-scrim[hidden] { display: none; }
@media (hover:hover) and (pointer:fine) {
  .desktop-nav > a:hover,.desktop-nav > button:hover { color: #fff; background: rgba(255,255,255,.08); }
  .desktop-nav > .nav-active:hover { color: #fff7e2; background: rgba(244,220,160,.09); }
  .desktop-nav > .nav-active:hover::after { opacity: 1; transform: scaleX(1); }
  .mobile-menu [data-nav]:hover { color: #f4dca0; background: rgba(255,255,255,.04); }
}
@media (max-width:1320px) {
  .nav-shell { width: calc(100% - 48px); gap: 18px; }
  .desktop-nav > a,.desktop-nav > button { padding: 8px 7px; font-size: 12.25px; }
}
@media (max-width:1100px) {
  .nav-shell { display: flex; gap: 16px; }
  .desktop-nav { display: none; }
  .site-header .button.header-cta { margin-left: auto; }
  .menu-toggle { display: block; }
}
@media (max-width:700px) {
  :root { --nav-height: 66px; }
  .nav-shell { width: calc(100% - 24px); gap: 9px; }
  .site-header .button.header-cta { font-size: 11px; min-height: 42px; padding: 11px 12px; }
  .menu-toggle { flex-basis: 42px; width: 42px; }
  .menu-toggle > span { left: 10px; right: 10px; }
}
@media (max-width:374px) {
  .nav-shell { gap: 7px; }
  .site-header .button.header-cta { padding-inline: 9px; }
}
@media (prefers-reduced-motion:reduce) {
  .site-header,.desktop-nav > [data-nav],.desktop-nav > [data-nav]::after,
  .mobile-menu,.menu-scrim,.menu-toggle > span { transition: none; }
}