:root {
    --experiment-poster-width: min(570px, calc(100vw - 160px), calc((100svh - 96px) * 570 / 790));
}
@view-transition {
    navigation: auto;
}
::view-transition-group(root),
::view-transition-old(root),
::view-transition-new(root) {
    animation-duration: 160ms;
    animation-timing-function: ease-out;
}
@media (prefers-reduced-motion: reduce) {
    @view-transition {
        navigation: none;
    }
    ::view-transition-group(root),
    ::view-transition-old(root),
    ::view-transition-new(root) {
        animation: none;
    }
}
.experiment-nav {
    position: fixed;
    inset: auto 16px 28px;
    display: flex;
    justify-content: center;
    gap: clamp(8px, 2vw, 18px);
    font: 11px/1.2 Arial, Helvetica, sans-serif;
    white-space: nowrap;
    text-transform: uppercase;
    z-index: 2;
}
.experiment-nav a { color: #777; text-decoration: none; }
.experiment-nav a:hover,
.experiment-nav a[aria-current="page"] { color: #111; }
.experiment-nav a:focus-visible { outline: 1px solid currentColor; outline-offset: 3px; }
.experiment-nav a.experiment-step {
    position: fixed;
    top: 50%;
    display: grid;
    place-items: center;
    min-width: 44px;
    min-height: 44px;
    padding: 12px 4px;
    font-size: 24px;
    color: #000;
}
.experiment-nav a.experiment-step:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 5px;
}
.experiment-prev {
    left: calc((100vw - var(--experiment-poster-width)) / 4);
    transform: translate(-50%, -50%);
}
.experiment-next {
    right: calc((100vw - var(--experiment-poster-width)) / 4);
    transform: translate(50%, -50%);
}
@media (max-width: 400px) {
    .experiment-nav { font-size: 10px; }
}