/* reader : styles partagés du site. */
.book-reader {
    width: min(100%, 1200px);
    margin: 2rem auto;
}
.book-spread {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    width: 100%;
    aspect-ratio: 1.414 / 1;
    overflow: hidden;
    background: #000;
    touch-action: pan-x pan-y pinch-zoom;
    outline: none;
}
.book-spread:focus-visible { outline: 3px solid #d4af37; outline-offset: 4px; }
.book-page {
    min-width: 0;
    min-height: 0;
    margin: 0;
    display: grid;
    place-items: center;
    overflow: hidden;
    background: #000;
}
.book-page img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    margin: 0;
    padding: 0;
}
.book-page--left { justify-self: stretch; }
.book-page--right { justify-self: stretch; }
.book-page--blank { background: #000; }
.book-reader__controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: .75rem;
    margin-top: 1rem;
}
.book-reader__counter {
    min-width: 10rem;
    text-align: center;
    color: #d4af37;
    font-variant-numeric: tabular-nums;
}
.book-reader__empty { text-align: center; color: #aaa; }
.book-reader:fullscreen {
    display: grid;
    place-items: center;
    background: #000;
    padding: 1rem;
}
.book-reader:fullscreen .book-spread {
    width: min(100vw, calc(100vh * 1.414));
    max-height: calc(100vh - 6rem);
}
@media (max-width: 640px) {
.book-reader { margin-block: 1rem 1.5rem; }
.book-reader__controls { gap: .5rem; }
.book-reader__controls .btn-action { min-height: 2.75rem; }
.book-reader__counter { order: -1; flex: 1 0 100%; }
}