.site-header{position:fixed!important;top:0;left:0;right:0;z-index:50;background:#102432f2;backdrop-filter:blur(12px);box-shadow:0 8px 30px #07131d18;transition:background-color .25s ease,box-shadow .25s ease,transform .25s ease}body:has(.hero) .site-header:not(.is-scrolled){background:linear-gradient(180deg,#07131da8,transparent);box-shadow:none;backdrop-filter:none}.site-header.is-scrolled{background:#102432f2!important;box-shadow:0 8px 30px #07131d24!important;backdrop-filter:blur(12px)!important}.theme-heritage .site-header.is-scrolled{background:#4b1822f5!important}.theme-horizon .site-header.is-scrolled{background:#063c48f4!important}.theme-journal .site-header.is-scrolled{background:#111f5!important}.theme-natura .site-header.is-scrolled{background:#284a35f5!important}@media(prefers-reduced-motion:reduce){.site-header{transition:none}}