.adaptive-site-header{background-color:var(--paper);background-color:color-mix(in srgb,var(--paper) 96%,transparent);color:var(--ink)}.adaptive-site-header[data-navigation-tone=light]{--paper:#ffffff;--surface:#ffffff;--ink:#0c1e5c;--muted:#edf3ff;--muted-foreground:#4b5568;--line:#e4eafb;--accent:#3d63f5;--accent-hover:#2b4fd6;--accent-fg:#ffffff}.adaptive-site-header[data-navigation-tone=dark]{--paper:#0b1224;--surface:#101a30;--ink:#f4f7ff;--muted:#18233b;--muted-foreground:#d1daef;--line:#2d3b58;--accent:#a8bdff;--accent-hover:#c4d1ff;--accent-fg:#0c1e5c}@media (prefers-reduced-motion:reduce){.adaptive-site-header,.adaptive-site-header *{transition:none!important}}