/* Transform only: the sticky header keeps its original space in the page. */
.site-header.smart-nav,.p-header.smart-nav{position:sticky;top:0;z-index:30;transform:translate3d(0,0,0);transition:transform 220ms cubic-bezier(.2,.7,.2,1),box-shadow 180ms ease;isolation:isolate}
.smart-nav[data-nav-hidden=true]{transform:translate3d(0,calc(-100% - 2px),0);pointer-events:none}
.smart-nav[data-nav-scrolled=true]{box-shadow:0 5px 18px -13px var(--theme-shadow-a55,#34171f55)}
/* Keyboard focus is revealed immediately and can never sit above the viewport. */
.smart-nav:has(:focus-visible){transform:translate3d(0,0,0);pointer-events:auto;transition:none}
@media(prefers-reduced-motion:reduce){.site-header.smart-nav,.p-header.smart-nav{transition:none}}