/* Dark-page navigation sits in the same space as the hero, with quiet blue light. */
.site-navigation {
  --nav-bg: #080b13eb; --nav-ink: #f0f3fa; --nav-muted: #a3aec0;
  --nav-line: #ccd7ee1c; --nav-accent: #85baff;
  position: sticky; top: 0; z-index: 50; height: 80px;
  background: var(--nav-bg); border-bottom: 1px solid var(--nav-line);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.site-navigation .global-nav { position: relative; display: flex; align-items: center; height: 100%; gap: 40px; padding: 0; }
.site-navigation .brand { display: inline-flex; align-items: center; gap: 9px; color: var(--nav-ink); font-size: 25px; font-weight: 650; letter-spacing: -.04em; }
.site-navigation .brand img { width: 34px; height: 34px; }
.site-navigation .nav-brand-mark { display: grid; place-items: center; flex-shrink: 0; }
.site-navigation .nav-links { display: flex; align-items: center; justify-content: center; margin-inline: auto; gap: 36px; }
.site-navigation .nav-links a { position: relative; color: var(--nav-muted); padding: 27px 0; font-size: 14px; font-weight: 500; white-space: nowrap; transition: color .2s; }
.site-navigation .nav-links a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 19px; height: 1px; background: var(--nav-accent); transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.site-navigation .nav-links a:hover, .site-navigation .nav-links a:focus-visible, .site-navigation .nav-links a[aria-current] { color: var(--nav-ink); }
.site-navigation .nav-links a:hover::after, .site-navigation .nav-links a:focus-visible::after, .site-navigation .nav-links a[aria-current]::after { transform: scaleX(1); }
.site-navigation .global-open { display: inline-flex; align-items: center; justify-content: center; gap: 20px; flex-shrink: 0; min-height: 40px; padding: 9px 17px; background: #82b7fa; color: #0b172a; border: 1px solid #a3c9fa; border-radius: 8px; font-size: 13px; font-weight: 600; white-space: nowrap; transition: background .2s; }
.site-navigation .global-open:hover { background: #a3c9fa; }
.site-navigation .global-open svg { width: 14px; height: 14px; }
.site-navigation .menu-toggle { display: none; }
.site-navigation :focus-visible { outline: 2px solid var(--nav-accent); outline-offset: 5px; }
.footer-nav { display: flex; gap: 24px; font-size: 14px; }
.footer-nav a:hover { color: var(--blue); }
.guide-site .site-navigation {
  height: 96px; display: flex; align-items: center;
  --nav-bg: #080b13ed; --nav-ink: #f0f3fa; --nav-muted: #abb7ca;
  --nav-line: #ccd7ee1c; --nav-accent: #a6d0ff;
  background: linear-gradient(180deg, #080b13f2, #080b13d9);
  border: 0; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.guide-site .site-navigation .global-nav { height: 100%; gap: 40px; }
.guide-site .site-navigation .brand { gap: 10px; font-size: 24px; font-weight: 500; letter-spacing: -.055em; }
.guide-site .site-navigation .nav-brand-mark { width: 34px; height: 34px; }
.guide-site .site-navigation .brand img { width: 32px; height: 32px; }
.guide-site .site-navigation .nav-links { gap: 38px; }
.guide-site .site-navigation .nav-links a { padding: 18px 0; color: #abb7ca; font-size: 14px; font-weight: 400; }
.guide-site .site-navigation .nav-links a::after { left: calc(50% - 2px); right: auto; bottom: 8px; width: 4px; height: 4px; border-radius: 50%; background: #a6d0ff; box-shadow: 0 0 9px #78b5ff80; transform: scale(0); transform-origin: center; }
.guide-site .site-navigation .nav-links a:hover, .guide-site .site-navigation .nav-links a:focus-visible, .guide-site .site-navigation .nav-links a[aria-current] { color: #d9ebff; text-shadow: 0 0 18px #85baff35; }
.guide-site .site-navigation .nav-links a:hover::after, .guide-site .site-navigation .nav-links a:focus-visible::after, .guide-site .site-navigation .nav-links a[aria-current]::after { transform: scale(1); }
.guide-site .site-navigation .global-open { gap: 15px; min-height: 44px; padding: 0; color: #a9cdff; border: 0; border-radius: 0; background: transparent; font-size: 14px; font-weight: 500; transition: color .2s; }
.guide-site .site-navigation .global-open svg { width: 38px; height: 38px; padding: 11px; border: 1px solid #a4ccff50; border-radius: 50%; background: radial-gradient(circle at 30% 20%, #b9dcff0d, transparent 70%); box-shadow: inset 0 1px 0 #e7f4ff14; transition: background .2s, border-color .2s, box-shadow .2s; }
.guide-site .site-navigation .global-open:hover { color: #e6f2ff; }
.guide-site .site-navigation .global-open:hover svg { border-color: #b7d8ff9c; background: #85baff12; box-shadow: 0 0 22px #559fff20; }
.guide-site .local-header { top: 96px; }
.nav-scroll-sentinel { position: absolute; top: 24px; left: 0; width: 1px; height: 1px; pointer-events: none; }
.home-site .site-navigation {
  height: 96px; display: flex; align-items: center;
  background: linear-gradient(180deg, #080b1370, #080b1320 55%, transparent);
  border: 0; backdrop-filter: none; -webkit-backdrop-filter: none;
  transition: background .25s, box-shadow .25s;
}
.home-site .site-navigation.is-scrolled { background: #080b13ed; box-shadow: 0 1px 0 #a7caff12; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.home-site:not(.product-site) .site-navigation { margin-bottom: -96px; }
.home-site:not(.product-site) .hero { padding-top: 96px; }
.home-site .site-navigation .global-nav {
  height: 100%; gap: 40px; padding: 0;
}
.home-site .site-navigation .brand { gap: 10px; font-size: 24px; font-weight: 500; letter-spacing: -.055em; }
.home-site .site-navigation .nav-brand-mark { width: 34px; height: 34px; }
.home-site .site-navigation .brand img { width: 32px; height: 32px; }
.home-site .site-navigation .nav-links { gap: 38px; }
.home-site .site-navigation .nav-links a { padding: 18px 0; color: #abb7ca; font-size: 14px; font-weight: 400; transition: color .2s, text-shadow .2s; }
.home-site .site-navigation .nav-links a::after { left: calc(50% - 2px); right: auto; bottom: 8px; width: 4px; height: 4px; border-radius: 50%; background: #a6d0ff; box-shadow: 0 0 9px #78b5ff80; transform: scale(0); transform-origin: center; }
.home-site .site-navigation .nav-links a:hover, .home-site .site-navigation .nav-links a:focus-visible, .home-site .site-navigation .nav-links a[aria-current] { color: #d9ebff; text-shadow: 0 0 18px #85baff35; }
.home-site .site-navigation .nav-links a:hover::after, .home-site .site-navigation .nav-links a:focus-visible::after, .home-site .site-navigation .nav-links a[aria-current]::after { transform: scale(1); }
.home-site .site-navigation .global-open { gap: 15px; min-height: 44px; padding: 0; color: #a9cdff; border: 0; border-radius: 0; background: transparent; font-size: 14px; font-weight: 500; transition: color .2s; }
.home-site .site-navigation .global-open svg { width: 38px; height: 38px; padding: 11px; border: 1px solid #a4ccff50; border-radius: 50%; background: radial-gradient(circle at 30% 20%, #b9dcff0d, transparent 70%); box-shadow: inset 0 1px 0 #e7f4ff14; transition: background .2s, border-color .2s, box-shadow .2s; }
.home-site .site-navigation .global-open:hover { color: #e6f2ff; }
.home-site .site-navigation .global-open:hover svg { border-color: #b7d8ff9c; background: #85baff12; box-shadow: 0 0 22px #559fff20; }
@media (min-width: 761px) and (max-width: 980px) {
  .site-navigation .global-nav { gap: 24px; }
  .site-navigation .nav-links { gap: 25px; }
  .home-site .site-navigation .global-nav { gap: 24px; }
  .home-site .site-navigation .nav-links { gap: 26px; }
}
@media (max-width: 760px) {
  .site-navigation { height: 68px; }
  .guide-site .local-header { top: 68px; }
  .site-navigation .global-nav { gap: 22px; }
  .site-navigation .brand { gap: 7px; font-size: 23px; }
  .site-navigation .brand img { width: 30px; height: 30px; }
  .site-navigation .global-open { margin-left: auto; min-height: 36px; padding: 7px 12px; gap: 12px; font-size: 12px; }
  .site-navigation .nav-links { display: none; position: absolute; top: 67px; left: -20px; right: -20px; height: auto; margin: 0; padding: 14px 20px 20px; background: var(--nav-bg); border-bottom: 1px solid var(--nav-line); box-shadow: 0 18px 30px #00000020; }
  .site-navigation .nav-links.open { display: flex; flex-direction: column; align-items: stretch; gap: 0; }
  .site-navigation .nav-links a { padding: 15px 0; font-size: 17px; }
  .site-navigation .nav-links a::after { bottom: 10px; right: auto; width: 26px; }
  .site-navigation .menu-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; flex-shrink: 0; width: 28px; height: 44px; gap: 6px; padding: 0; }
  .site-navigation .menu-toggle span { width: 20px; height: 1px; background: var(--nav-ink); transition: transform .2s; }
  .site-navigation .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .site-navigation .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .footer-nav { gap: 18px; font-size: 13px; }
  .home-site .site-navigation { height: 76px; }
  .guide-site .site-navigation { height: 76px; }
  .guide-site .local-header { top: 76px; }
  .home-site:not(.product-site) .site-navigation { margin-bottom: -76px; }
  .home-site:not(.product-site) .hero { padding-top: 76px; }
  .home-site .site-navigation .global-nav { height: 100%; gap: 20px; padding: 0; }
  .home-site .site-navigation .brand { gap: 7px; font-size: 21px; }
  .home-site .site-navigation .nav-brand-mark { width: 32px; height: 32px; }
  .home-site .site-navigation .brand img { width: 28px; height: 28px; }
  .home-site .site-navigation .global-open { min-height: 44px; padding: 0; gap: 9px; font-size: 12px; }
  .home-site .site-navigation .global-open svg { width: 32px; height: 32px; padding: 9px; }
  .home-site .site-navigation .menu-toggle { width: 36px; height: 42px; }
  .home-site .site-navigation .nav-links { top: calc(100% - 2px); left: 0; right: 0; padding: 10px 18px; border: 1px solid #b8d6ff1c; border-radius: 12px; background: #0b111ef5; box-shadow: 0 18px 36px #00000040; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
  .home-site .site-navigation .nav-links.open { gap: 0; }
  .home-site .site-navigation .nav-links a { padding: 15px 0; font-size: 16px; }
  .home-site .site-navigation .nav-links a + a { border-top: 1px solid #b8d6ff12; }
  .home-site .site-navigation .nav-links a::after { left: auto; right: 0; bottom: calc(50% - 2px); }
  .guide-site .site-navigation .global-nav { height: 100%; gap: 20px; padding: 0; }
  .guide-site .site-navigation .brand { gap: 7px; font-size: 21px; }
  .guide-site .site-navigation .nav-brand-mark { width: 32px; height: 32px; }
  .guide-site .site-navigation .brand img { width: 28px; height: 28px; }
  .guide-site .site-navigation .global-open { min-height: 44px; padding: 0; gap: 9px; font-size: 12px; }
  .guide-site .site-navigation .global-open svg { width: 32px; height: 32px; padding: 9px; }
  .guide-site .site-navigation .menu-toggle { width: 36px; height: 42px; }
  .guide-site .site-navigation .nav-links { top: calc(100% - 2px); left: 0; right: 0; padding: 10px 18px; border: 1px solid #b8d6ff1c; border-radius: 12px; background: #0b111ef5; box-shadow: 0 18px 36px #00000040; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
  .guide-site .site-navigation .nav-links.open { gap: 0; }
  .guide-site .site-navigation .nav-links a { padding: 15px 0; font-size: 16px; }
  .guide-site .site-navigation .nav-links a + a { border-top: 1px solid #b8d6ff12; }
  .guide-site .site-navigation .nav-links a::after { left: auto; right: 0; bottom: calc(50% - 2px); }
}
@media (prefers-reduced-motion: reduce) {
  .site-navigation *, .site-navigation *::after { transition: none; }
}