.skip-link{inset-inline-start:1rem;z-index:100;border:2px solid var(--brand);background:var(--surface);color:var(--ink);border-radius:.6rem;padding:.6rem 1rem;font-weight:700;position:absolute;top:-4rem}.skip-link:focus-visible{outline:3px solid color-mix(in srgb, var(--nabd-color-text-primary) 35%, transparent);top:1rem}#main-content:focus{outline:none}.back-to-top{inset-inline-end:1rem;bottom:calc(1rem + env(safe-area-inset-bottom));z-index:25;border:1px solid var(--line);background:var(--surface);width:2.75rem;height:2.75rem;color:var(--ink);box-shadow:var(--nabd-shadow-raised);border-radius:999px;place-items:center;font-size:1.25rem;font-weight:800;display:grid;position:fixed}.back-to-top:focus-visible{outline:3px solid color-mix(in srgb, var(--nabd-color-text-primary) 35%, transparent)}.reading-progress{top:0;z-index:30;pointer-events:none;height:3px;position:fixed;inset-inline:0}.reading-progress>span{background:var(--brand);transform-origin:0;height:100%;display:block}[dir=rtl] .reading-progress>span{transform-origin:100%}@media (max-width:720px){.back-to-top{bottom:calc(5.5rem + env(safe-area-inset-bottom))}}