/**
 * CatalogViewerModal / CatalogSpreadViewer — Next.js 移植
 * 正本: CatalogViewerModal.tsx, CatalogSpreadViewer.tsx, globals.css L3667–3692 / L4680–4693
 */

/* globals.css .catalog-viewer-scroll */
.catalog-viewer-scroll {
  scrollbar-width: thin;
  scrollbar-color: rgba(71, 85, 105, 0.55) transparent;
}

.catalog-viewer-scroll::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

.catalog-viewer-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.catalog-viewer-scroll::-webkit-scrollbar-thumb {
  background: rgba(71, 85, 105, 0.55);
  border-radius: 9999px;
}

.catalog-viewer-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(100, 116, 139, 0.75);
}

.catalog-viewer-scroll::-webkit-scrollbar-corner {
  background: transparent;
}

/* Modal shell — CatalogViewerModal.tsx L544–549 */
.catalog-viewer {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  height: 100dvh;
  width: 100vw;
  flex-direction: column;
  background-color: #020617; /* slate-950 */
}

.catalog-viewer__grid {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 41, 59, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 41, 59, 0.5) 1px, transparent 1px);
  background-size: 24px 24px;
}

.catalog-viewer__shell {
  position: relative;
  z-index: 10;
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
}

.catalog-viewer__header {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid #1e293b; /* slate-800 */
  padding: 1rem;
}

@media (min-width: 768px) {
  .catalog-viewer__header {
    padding: 1.25rem 2.5rem;
  }
}

.catalog-viewer__header-left {
  display: flex;
  min-width: 0;
  flex: 1;
  align-items: center;
  gap: 0.75rem;
}

.catalog-viewer__toc-open {
  flex-shrink: 0;
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  letter-spacing: 0.025em;
  color: #94a3b8; /* slate-400 */
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color 0.15s ease;
}

.catalog-viewer__toc-open:hover {
  color: #fff;
}

@media (min-width: 1024px) {
  .catalog-viewer__toc-open {
    display: none;
  }
}

.catalog-viewer__title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-noto), sans-serif;
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.025em;
  color: #fff;
  margin: 0;
}

@media (min-width: 768px) {
  .catalog-viewer__title {
    font-size: 1.25rem;
    letter-spacing: 0.1em;
  }
}

.catalog-viewer__title-long {
  display: none;
}

@media (min-width: 1024px) {
  .catalog-viewer__title-short {
    display: none;
  }

  .catalog-viewer__title-long {
    display: inline;
  }
}

.catalog-viewer__close {
  flex-shrink: 0;
  cursor: pointer;
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  color: #94a3b8;
  background: transparent;
  border: 0;
  transition: color 0.15s ease;
}

.catalog-viewer__close:hover {
  color: #fff;
}

.catalog-viewer__body {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
}

@media (min-width: 1024px) {
  .catalog-viewer__body {
    flex-direction: row;
  }
}

.catalog-viewer__aside {
  display: none;
  height: 100%;
  width: 20rem; /* Next: md:w-80 when lg:flex */
  flex-shrink: 0;
  flex-direction: column;
  overflow-y: auto;
  border-right: 1px solid #1e293b;
  padding: 2rem 1.5rem;
}

@media (min-width: 1024px) {
  .catalog-viewer__aside {
    display: flex;
  }
}

.catalog-viewer__index-item {
  position: relative;
  width: 100%;
  border: 0;
  border-bottom: 1px solid #1e293b;
  background: transparent;
  padding: 0.75rem 0;
  text-align: left;
  color: #64748b; /* slate-500 */
  cursor: pointer;
  transition: color 0.15s ease;
}

@media (min-width: 1024px) {
  .catalog-viewer__index-item {
    padding-top: 1rem;
    padding-bottom: 1rem;
  }
}

.catalog-viewer__index-item:hover {
  color: #cbd5e1; /* slate-300 */
}

.catalog-viewer__index-item.is-active {
  color: #fff;
}

.catalog-viewer__index-bar {
  position: absolute;
  bottom: 0.75rem;
  left: 0;
  top: 0.75rem;
  width: 1px;
  background: var(--accent);
}

@media (min-width: 1024px) {
  .catalog-viewer__index-bar {
    bottom: 1rem;
    top: 1rem;
  }
}

.catalog-viewer__index-title {
  display: block;
  padding-left: 1rem;
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  line-height: 1.625;
}

@media (min-width: 768px) {
  .catalog-viewer__index-title {
    font-size: 1rem;
  }
}

.catalog-viewer__index-range {
  display: block;
  margin-top: 0.25rem;
  padding-left: 1rem;
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  color: #475569; /* slate-600 */
}

@media (min-width: 768px) {
  .catalog-viewer__index-range {
    font-size: var(--text-sm);
  }
}

.catalog-viewer__toc-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  border: 0;
  background: rgba(0, 0, 0, 0.6);
  cursor: pointer;
}

@media (min-width: 1024px) {
  .catalog-viewer__toc-backdrop {
    display: none;
  }
}

.catalog-viewer__mobile-toc {
  position: fixed;
  inset-block: 0;
  left: 0;
  z-index: 30;
  display: flex;
  width: min(100vw - 3rem, 20rem);
  flex-direction: column;
  overflow-y: auto;
  border-right: 1px solid #1e293b;
  background: #020617;
  padding: 1.5rem 1.25rem;
}

@media (min-width: 1024px) {
  .catalog-viewer__mobile-toc {
    display: none;
  }
}

.catalog-viewer__mobile-toc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.catalog-viewer__mobile-toc-label {
  margin: 0;
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  letter-spacing: 0.025em;
  color: #94a3b8;
}

.catalog-viewer__main {
  position: relative;
  display: flex;
  min-height: 0;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.catalog-viewer__viewport {
  position: relative;
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  overscroll-behavior: contain;
  padding: 0.5rem;
  touch-action: none;
  user-select: none;
  overflow: hidden;
  cursor: grab;
}

@media (min-width: 768px) {
  .catalog-viewer__viewport {
    padding: 1rem 1.5rem;
  }
}

.catalog-viewer__viewport.is-zoomed {
  overflow: auto;
}

.catalog-viewer__viewport.is-grabbing {
  cursor: grabbing;
}

.catalog-viewer__center {
  display: flex;
  min-height: 0;
  flex: 1;
  align-items: center;
  justify-content: center;
}

.catalog-viewer__size-box {
  position: relative;
  display: flex;
  height: 100%;
  width: 100%;
  max-height: calc(100dvh - 11.5rem);
  max-width: 100%;
  align-items: center;
  justify-content: center;
}

@media (min-width: 1024px) {
  .catalog-viewer__size-box {
    max-height: calc(100vh - 220px);
  }
}

.catalog-viewer__drag-layer,
.catalog-viewer__zoom-layer {
  display: flex;
  height: 100%;
  width: 100%;
  max-width: 100%;
  align-items: center;
  justify-content: center;
}

.catalog-viewer__drag-layer.is-snapping {
  transition: transform 0.2s ease-out;
}

.catalog-viewer__controls {
  display: flex;
  flex-shrink: 0;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 1px solid #1e293b;
  padding: 0.75rem;
  padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
}

@media (min-width: 768px) {
  .catalog-viewer__controls {
    flex-direction: row;
    justify-content: center;
    gap: 2.5rem;
    padding: 1.25rem 1rem;
  }
}

.catalog-viewer__controls-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .catalog-viewer__controls-nav {
    justify-content: center;
    gap: 2rem;
  }
}

.catalog-viewer__controls-zoom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .catalog-viewer__controls-zoom {
    gap: 1rem;
  }
}

.catalog-viewer__ctrl-btn {
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  color: #94a3b8;
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color 0.15s ease;
}

@media (min-width: 768px) {
  .catalog-viewer__ctrl-btn {
    font-size: var(--text-sm);
  }
}

.catalog-viewer__ctrl-btn:hover:not(:disabled) {
  color: #fff;
}

.catalog-viewer__ctrl-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.catalog-viewer__position {
  margin: 0;
  font-family: var(--font-noto), sans-serif;
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: #64748b;
}

@media (min-width: 768px) {
  .catalog-viewer__position {
    font-size: var(--text-sm);
  }
}

/* CatalogSpreadViewer — globals.css L4680–4693 + component classes */
.catalog-spread-viewer {
  display: flex;
  height: 100%;
  width: 100%;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 220px);
  position: relative;
}

@media (max-width: 1023px) {
  .catalog-spread-viewer {
    min-height: 0;
  }

  .catalog-spread-viewer--mobile {
    width: 100%;
    max-width: 100%;
  }
}

.catalog-spread-viewer__motion {
  display: flex;
  width: 100%;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  padding-inline: 0.25rem;
  opacity: 1;
  transform: translateX(0);
  transition:
    opacity 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 768px) {
  .catalog-spread-viewer__motion {
    padding-inline: 0;
  }
}

.catalog-spread-viewer__motion.is-enter {
  opacity: 0;
  transform: translateX(var(--catalog-dir, 32px));
}

.catalog-spread-viewer__motion.is-exit {
  position: absolute;
  opacity: 0;
  transform: translateX(var(--catalog-dir, -32px));
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .catalog-spread-viewer__motion,
  .catalog-spread-viewer__motion.is-enter,
  .catalog-spread-viewer__motion.is-exit {
    transition: opacity 0.2s ease;
    transform: none;
  }
}

.catalog-spread {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
}

.catalog-spread--pair {
  align-items: stretch;
  gap: 0;
}

.catalog-page {
  position: relative;
  aspect-ratio: 1 / 1.414;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: #fff;
  height: min(80vh, calc(100vh - 220px));
  max-height: 820px;
  width: auto;
  max-width: 100%;
}

.catalog-page--compact {
  height: min(72vh, calc(100vh - 240px));
  max-height: 760px;
}

.catalog-page--mobile {
  height: auto;
  width: 100%;
  max-width: 100%;
  margin-inline: auto;
}

.catalog-page__corner {
  pointer-events: none;
  position: absolute;
  height: 0.75rem;
  width: 0.75rem;
  border-color: rgba(255, 255, 255, 0.8);
}

.catalog-page__corner--tl {
  left: 0;
  top: 0;
  border-left: 1px solid;
  border-top: 1px solid;
}

.catalog-page__corner--tr {
  right: 0;
  top: 0;
  border-right: 1px solid;
  border-top: 1px solid;
}

.catalog-page__corner--bl {
  bottom: 0;
  left: 0;
  border-bottom: 1px solid;
  border-left: 1px solid;
}

.catalog-page__corner--br {
  bottom: 0;
  right: 0;
  border-bottom: 1px solid;
  border-right: 1px solid;
}

.catalog-page__img {
  position: absolute;
  inset: 0;
  height: 100%;
  width: 100%;
  object-fit: cover;
  object-position: top;
  pointer-events: none;
}