/* Header stays in document flow and returns on upward scroll. */
body .site-header{position:sticky;top:0;z-index:110;transform:translateY(0);transition:transform .22s ease,box-shadow .22s ease;background:#f8fbfdee;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
body .site-header.header-is-away{transform:translateY(calc(-100% - 6px));pointer-events:none}
body .site-header.header-is-scrolled{box-shadow:0 4px 20px -12px #17354a55;border-bottom:1px solid #dbe5ed}
body .site-header:focus-within,body .site-header:has(.mobile-toggle:checked),body .site-header:has(.nav-trigger[aria-expanded=true]){transform:translateY(0);pointer-events:auto}
html{scroll-padding-top:110px}
@media(max-width:760px){html{scroll-padding-top:88px}}
@media(prefers-reduced-motion:reduce){body .site-header{transition:none}}