.catalog-only,
.catalog-only .viewer-stage {
  background: #000;
}

.catalog-only .viewer-stage {
  padding: 0;
}

.catalog-only .book-spread {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transform: translate3d(var(--pan-x, 0px), var(--pan-y, 0px), 0) scale(var(--zoom, 1));
  transform-origin: center center;
  transition: transform .18s ease-out;
}

.catalog-only .viewer-stage {
  overflow: hidden;
  touch-action: none;
}

.catalog-only .is-zoomed .book-spread {
  transition: none;
}

.catalog-only .is-zoomed .page-zone {
  pointer-events: none;
}

.catalog-only .page-turn {
  position: absolute;
  z-index: 15;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  align-items: center;
  justify-items: center;
  pointer-events: none;
  perspective: 1800px;
}

.catalog-only .page-turn.single {
  grid-template-columns: 1fr;
}

.catalog-only .page-turn.forward .page-turn-sheet {
  grid-column: 2;
  transform-origin: left center;
}

.catalog-only .page-turn.backward .page-turn-sheet {
  grid-column: 1;
  transform-origin: right center;
}

.catalog-only .page-turn.single .page-turn-sheet {
  grid-column: 1;
}

.catalog-only .page-turn-sheet {
  position: relative;
  width: auto;
  height: min(100%, calc(100vw * 1.414));
  max-width: 50%;
  max-height: 100%;
  aspect-ratio: 210 / 297;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 50px rgba(0,0,0,.46), 0 0 2rem rgba(0,0,0,.25);
  backface-visibility: hidden;
  transform-style: preserve-3d;
}

.catalog-only .page-turn.single .page-turn-sheet {
  max-width: 100%;
}

.catalog-only .page-turn-sheet::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.12), transparent 38%, rgba(20,25,19,.28));
  opacity: 0;
  transition: opacity .1s linear;
}

.catalog-only .page-turn.turning.forward .page-turn-sheet {
  animation: catalogue-curl-forward .68s cubic-bezier(.22,.72,.18,1) both;
}

.catalog-only .page-turn.turning.backward .page-turn-sheet {
  animation: catalogue-curl-backward .68s cubic-bezier(.22,.72,.18,1) both;
}

.catalog-only .page-turn.turning .page-turn-sheet::after {
  opacity: 1;
}

.catalog-only .page-turn-sheet canvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.zoom-controls {
  display: grid;
  grid-template-columns: 2.8rem 1fr 2.8rem auto;
  align-items: center;
  gap: .5rem;
}

.zoom-controls button {
  min-height: 2.7rem;
  border: 0;
  border-radius: .7rem;
  background: #e6e4de;
  color: #171916;
  font: 700 1.3rem/1 inherit;
}

.zoom-controls button:last-child {
  padding: 0 .75rem;
  font-size: .82rem;
}

.zoom-controls button:disabled {
  opacity: .4;
}

.zoom-controls output {
  color: #676b64;
  text-align: center;
  font: 700 .9rem/1 ui-sans-serif, system-ui, sans-serif;
}

.zoom-hint {
  margin: .7rem 0 0;
  color: #676b64;
  font-size: .82rem;
  line-height: 1.45;
}

@keyframes catalogue-curl-forward {
  0% { transform: perspective(1800px) rotateY(0deg) translateZ(3px); filter: brightness(1); }
  42% { transform: perspective(1800px) rotateY(-76deg) translateX(-2%); filter: brightness(.82); }
  100% { transform: perspective(1800px) rotateY(-180deg) translateX(-5%); filter: brightness(.58); }
}

@keyframes catalogue-curl-backward {
  0% { transform: perspective(1800px) rotateY(0deg) translateZ(3px); filter: brightness(1); }
  42% { transform: perspective(1800px) rotateY(76deg) translateX(2%); filter: brightness(.82); }
  100% { transform: perspective(1800px) rotateY(180deg) translateX(5%); filter: brightness(.58); }
}

.catalog-only .pdf-page {
  box-shadow: none;
}

.hidden-reader-menu {
  position: absolute;
  z-index: 25;
  top: max(.4rem, env(safe-area-inset-top));
  right: max(.4rem, env(safe-area-inset-right));
  width: 3.25rem;
  height: 3.25rem;
  border: 0;
  padding: 0;
  background: transparent;
  opacity: 0;
  -webkit-tap-highlight-color: transparent;
}

.hidden-reader-menu:focus-visible {
  opacity: 1;
  outline: 2px solid white;
  outline-offset: -4px;
}

@media (max-width: 760px), (orientation: portrait) {
  .catalog-only .pdf-page {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: auto;
    background: #fff;
  }

  .catalog-only .pdf-page canvas {
    object-fit: contain;
  }

  .catalog-only .page-turn-sheet {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .catalog-only .page-turn { display: none; }
}
:root{--reader-download-bg:rgba(250,246,236,.92)}
.reader-download{position:fixed;right:1rem;bottom:1rem;z-index:5;padding:.7rem 1rem;border:1px solid rgba(255,255,255,.35);border-radius:999px;background:var(--reader-download-bg);color:#1a211b;font:600 .75rem/1 system-ui,sans-serif;text-decoration:none;box-shadow:0 .35rem 1.4rem rgba(0,0,0,.18)}