.book-magnifier {
  position: relative;
  display: block;
  max-width: 100%;
  isolation: isolate;
  cursor: zoom-in;
}

.book-magnifier > img {
  display: block;
  width: 100%;
  height: auto;
}

.book-magnifier-lens {
  position: absolute;
  display: none;
  pointer-events: none;
  width: 34%;
  aspect-ratio: 1;
  border: 2px solid rgba(255, 224, 118, 0.95);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.55), 0 4px 18px rgba(0, 0, 0, 0.45);
  transform: translate(-50%, -50%);
  z-index: 5;
}

.book-magnifier-preview {
  position: fixed;
  display: none;
  pointer-events: none;
  width: min(46vw, 620px);
  height: min(72vh, 720px);
  border: 2px solid #e8c75c;
  border-radius: 10px;
  background-color: #080b14;
  background-repeat: no-repeat;
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.78), 0 0 28px rgba(232, 199, 92, 0.22);
  z-index: 2147483000;
}

.book-magnifier.is-active .book-magnifier-lens,
.book-magnifier-preview.is-active {
  display: block;
}

.book-magnifier-hint {
  position: absolute;
  right: 8px;
  bottom: 8px;
  max-width: calc(100% - 16px);
  padding: 6px 10px;
  border: 1px solid rgba(255, 224, 118, 0.62);
  border-radius: 999px;
  background: rgba(4, 7, 14, 0.86);
  color: #ffe078;
  font: 700 12px/1.2 system-ui, sans-serif;
  text-align: center;
  pointer-events: none;
  opacity: 0.96;
  z-index: 4;
}

.book-magnifier:focus-visible {
  outline: 3px solid #ffe078;
  outline-offset: 4px;
}

body.book-lightbox-open {
  overflow: hidden !important;
}

.book-lightbox {
  position: fixed;
  inset: 0;
  display: none;
  padding: 18px;
  background: rgba(2, 5, 12, 0.94);
  backdrop-filter: blur(8px);
  z-index: 2147483600;
}

.book-lightbox.is-open {
  display: grid;
  place-items: center;
}

.book-lightbox-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: min(96vw, 1800px);
  height: min(95vh, 1200px);
  overflow: hidden;
  border: 1px solid rgba(255, 224, 120, 0.75);
  border-radius: 14px;
  background: #060912;
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.88), 0 0 40px rgba(232, 199, 92, 0.18);
}

.book-lightbox-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 58px;
  padding: 9px 12px 9px 18px;
  border-bottom: 1px solid rgba(255, 224, 120, 0.28);
  background: linear-gradient(90deg, #071021, #10162a);
}

.book-lightbox-title {
  margin: 0;
  overflow: hidden;
  color: #fff3c4;
  font: 700 15px/1.25 system-ui, sans-serif;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.book-lightbox-controls {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
}

.book-lightbox-controls button {
  min-width: 42px;
  min-height: 40px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 224, 120, 0.55);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff6d2;
  font: 800 15px/1 system-ui, sans-serif;
  cursor: pointer;
}

.book-lightbox-controls button:hover,
.book-lightbox-controls button:focus-visible {
  background: rgba(255, 224, 120, 0.2);
  outline: 2px solid #ffe078;
  outline-offset: 2px;
}

.book-lightbox-controls button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.book-lightbox-controls .book-lightbox-close {
  min-width: 88px;
}

.book-lightbox-viewport {
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 16px;
  background:
    radial-gradient(circle at 50% 35%, rgba(35, 72, 135, 0.3), transparent 52%),
    #02040a;
  cursor: default;
  touch-action: pan-x pan-y;
}

.book-lightbox-viewport.is-dragging {
  cursor: grabbing;
  user-select: none;
}

.book-lightbox-image {
  display: block;
  flex: 0 0 auto;
  max-width: none;
  max-height: none;
  height: auto;
  border-radius: 3px;
  box-shadow: 0 12px 45px rgba(0, 0, 0, 0.65);
  cursor: zoom-in;
  -webkit-user-drag: none;
  user-select: none;
}

.book-lightbox-image.is-zoomed {
  cursor: zoom-out;
}

@media (max-width: 900px), (hover: none) {
  .book-magnifier-preview,
  .book-magnifier-lens {
    display: none !important;
  }

  .book-magnifier-hint {
    font-size: 11px;
  }

  .book-lightbox {
    padding: 0;
  }

  .book-lightbox-panel {
    width: 100vw;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .book-lightbox-toolbar {
    align-items: flex-start;
    padding: 8px;
  }

  .book-lightbox-title {
    display: none;
  }

  .book-lightbox-controls {
    width: 100%;
    justify-content: center;
  }

  .book-lightbox-controls .book-lightbox-close {
    margin-left: auto;
  }

  .book-lightbox-viewport {
    padding: 8px;
  }
}

@media (max-width: 480px) {
  .book-lightbox-controls {
    gap: 5px;
  }

  .book-lightbox-controls button {
    min-width: 38px;
    padding-inline: 8px;
    font-size: 13px;
  }

  .book-lightbox-controls .book-lightbox-close {
    min-width: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .book-magnifier-preview,
  .book-magnifier-lens,
  .book-lightbox-image {
    transition: none;
  }
}

@media print {
  .book-magnifier-hint,
  .book-lightbox,
  .book-magnifier-preview,
  .book-magnifier-lens {
    display: none !important;
  }
}