.derpool-popup {
    position: fixed;
    inset: 0;
    margin: auto;
    padding: 0;
    border: 0;
    width: max-content;
    max-width: calc(100vw - 128px);
    max-height: calc(100vh - 96px);
    max-height: calc(100dvh - 96px);
    overflow: visible;
    background: transparent;
    color: #fff;
    z-index: 2147483647;
}

.derpool-popup::backdrop {
    background: rgba(0, 0, 0, .7);
}

.derpool-popup__slides {
    display: grid;
}

.derpool-popup__slide {
    grid-area: 1 / 1;
    display: block;
    opacity: 0;
    pointer-events: none;
    transition: opacity 400ms ease;
}

.derpool-popup__slide.is-active {
    opacity: 1;
    pointer-events: auto;
    z-index: 1;
}

.derpool-popup__slide img {
    display: block;
    width: auto;
    height: auto;
    max-width: min(900px, calc(100vw - 128px));
    max-height: calc(100vh - 96px);
    max-height: calc(100dvh - 96px);
    object-fit: contain;
    border-radius: 20px;
    border: 4px solid #fff;
}

.derpool-popup button {
    position: absolute;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, .65);
    border-radius: 50%;
    background: #151515;
    color: #fff;
    font: 24px/1 Arial, sans-serif;
    cursor: pointer;
    touch-action: manipulation;
}

.derpool-popup button:hover {
    background: #343434;
}

.derpool-popup button:focus-visible,
.derpool-popup__slide:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
}

.derpool-popup .derpool-popup__close {
    top: -18px;
    right: -13px;
    font-size: 32px;
    position: absolute;
}

.derpool-popup__previous {
    top: calc(50% - 22px);
    left: -54px;
}

.derpool-popup__next {
    top: calc(50% - 22px);
    right: -54px;
}

@media (max-width: 600px) {
    .derpool-popup {
        max-width: calc(100vw - 32px);
    }

    .derpool-popup__slide img {
        max-width: calc(100vw - 32px);
    }

    .derpool-popup__previous {
        left: 4px;
    }

    .derpool-popup__next {
        right: 4px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .derpool-popup__slide {
        transition: none;
    }
}