/* Shared fullscreen viewer foundation used by Art and Project galleries. */
.fullscreen-viewer,
#slideshow {
    position: fixed;
    inset: 0;
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.fullscreen-viewer {
    display: flex;
    flex-direction: column;
    gap: 22px;
    background: #202020;
    color: #fff;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 200ms ease-out, visibility 200ms ease-out;
}

.fullscreen-viewer.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.fullscreen-viewer .fullscreen-image,
.fullscreen-viewer .fullscreen-video {
    display: block;
    width: auto;
    max-width: 90vw;
    max-height: 80dvh;
    object-fit: contain;
    opacity: 1;
    transition: opacity 180ms ease;
    border: 0;
}

.fullscreen-viewer .fullscreen-video[hidden],
.fullscreen-viewer .fullscreen-image[hidden] {
    display: none;
}

.fullscreen-viewer.is-video .fullscreen-video {
    width: min(90vw, 1280px);
    height: min(80vh, 720px);
    max-width: 90vw;
    max-height: 80vh;
}

.fullscreen-viewer button {
    position: absolute;
    z-index: 1;
    border: 0;
    background: transparent;
    width: 48px;
    height: 48px;
    padding: 0;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 20px;
    transition: color 180ms ease, opacity 220ms ease;
}

.fullscreen-viewer .fullscreen-close { top: 24px; right: 24px; }
.fullscreen-viewer .fullscreen-prev { left: 24px; top: 50%; transform: translateY(-50%); }
.fullscreen-viewer .fullscreen-next { right: 24px; top: 50%; transform: translateY(-50%); }
.fullscreen-viewer button:hover,
.fullscreen-viewer button:focus-visible { color: #fff; }
.fullscreen-viewer.controls-hidden button,
.fullscreen-viewer.controls-hidden .fullscreen-counter { opacity: 0; }
.fullscreen-viewer.controls-hidden button:focus-visible { opacity: 1; }

.icon-chevron,
.icon-x {
    display: block;
    position: relative;
    width: 20px;
    height: 20px;
    margin: auto;
}
.icon-chevron::before {
    content: "";
    position: absolute;
    top: 4px;
    width: 12px;
    height: 12px;
    border-top: 1.5px solid currentColor;
    border-right: 1.5px solid currentColor;
    transform: rotate(45deg);
}
.icon-chevron--left::before { left: 5px; transform: rotate(-135deg); }
.icon-chevron--right::before { right: 5px; }
.icon-x::before,
.icon-x::after {
    content: "";
    position: absolute;
    top: 9px;
    left: 2px;
    width: 18px;
    border-top: 1.5px solid currentColor;
}
.icon-x::before { transform: rotate(45deg); }
.icon-x::after { transform: rotate(-45deg); }
.fullscreen-viewer .fullscreen-counter {
    position: static;
    margin: 0;
    text-align: center;
    color: #bcbcbc;
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    transition: opacity 220ms ease;
}

.fullscreen-viewer[aria-hidden="true"],
#slideshow[aria-hidden="true"] {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.fullscreen-viewer button,
#slideshow button {
    font: inherit;
}

.fullscreen-viewer button:focus-visible,
#slideshow button:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    .fullscreen-viewer,
    #slideshow {
        transition: none !important;
    }
    .fullscreen-viewer .fullscreen-image,
    .fullscreen-viewer .fullscreen-video,
    .fullscreen-viewer button,
    .fullscreen-viewer .fullscreen-counter { transition: none; }
}

@media (max-width: 700px) {
    .fullscreen-viewer { gap: 18px; padding: 12px; }
    .fullscreen-viewer .fullscreen-image { max-width: calc(100vw - 24px); max-height: 78dvh; }
    .fullscreen-viewer .fullscreen-video { width: calc(100vw - 24px); height: calc((100vw - 24px) * 0.5625); max-height: 70dvh; }
    .fullscreen-viewer .fullscreen-close { top: 8px; right: 8px; }
    .fullscreen-viewer .fullscreen-prev { left: 4px; }
    .fullscreen-viewer .fullscreen-next { right: 4px; }
    .fullscreen-viewer .fullscreen-counter { font-size: 12px; }
    .fullscreen-viewer.controls-hidden button,
    .fullscreen-viewer.controls-hidden .fullscreen-counter { opacity: 1; }
}