@import url("/catalog-static/tokens.css");

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button {
  padding: 9px 16px;
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    transform 0.18s ease;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
}
button:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}
button:disabled {
  transform: none;
}
input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--focus-shadow);
}
a {
  color: inherit;
}
body:has(.book-stage) {
  height: 100vh;
  height: 100svh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
}
.reader-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  min-height: 62px;
  background: var(--card);
  backdrop-filter: blur(12px);
  position: relative;
  z-index: 20;
}
.reader-brand {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-decoration: none;
  flex: none;
}
.reader-header > span {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: max(
    0px,
    calc(
      100% - var(--reader-title-inset, 440px) - var(--reader-title-inset, 440px)
    )
  );
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.reader-header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  min-width: 0;
}
.reader-header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  white-space: nowrap;
}
.reader-header .reader-header-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 0.18s var(--ease),
    color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}
.reader-header .reader-header-control:hover {
  background: var(--surface-selected);
  color: var(--text);
  transform: none;
  text-decoration: none;
}
.reader-header-control:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}
.reader-header-control svg {
  display: block;
  width: 16px;
  height: 16px;
  flex: none;
  stroke-width: 1.6;
}
.reader-header .reader-all-catalogs {
  background: var(--card);
  border-color: var(--hairline);
  color: var(--text);
}
.reader-header .reader-all-catalogs:hover {
  background: var(--card);
  border-color: var(--border-focus);
}
.reader-header .reader-share {
  width: 38px;
  padding: 0;
  flex: none;
}
.reader-share svg {
  width: 18px;
  height: 18px;
}
.reader-mode-book,
#modeBtn[aria-pressed="true"] .reader-mode-linear {
  display: none;
}
#modeBtn[aria-pressed="true"] .reader-mode-book {
  display: inline-flex;
}
.book-stage {
  padding: 35px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  min-height: calc(100dvh - 144px);
  position: relative;
  isolation: isolate;
}
.page-slot {
  position: relative;
  flex: none;
  box-shadow: var(--shadow);
  background: var(--card);
  outline: 1px solid var(--hairline);
}
.page-slot .catalog-page {
  transform-origin: top left;
}
.book-stage[data-mode="book"] {
  height: 100%;
  min-height: 0;
  overflow: hidden;
  display: block;
  padding: 0;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.book-stage[data-mode="linear"] {
  height: 100%;
  min-height: 0;
  overflow: auto;
}
.book-stage[data-mode="book"] .page-slot {
  position: absolute;
  display: none;
  overflow: hidden;
  box-shadow: var(--paper-shadow);
}
.book-stage[data-mode="book"] .page-slot.active {
  display: block;
}
/* Keep spread edges soft while turning too; restoring the page outline mid-turn
   draws a hard rectangle at the spine around the stationary page. */
.book-stage[data-spread="true"] .page-slot.active {
  outline: none;
  box-shadow: var(--spread-shadow);
}
.book-stage[data-spread="true"] .page-slot.active::before {
  background: none;
}
.book-stage[data-mode="book"] .page-slot.active .text-content {
  user-select: none;
  -webkit-user-select: none;
}
.book-stage[data-mode="book"] .page-slot:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    var(--paper-edge),
    transparent 3%,
    transparent 97%,
    var(--paper-edge)
  );
  z-index: 20000;
  pointer-events: none;
}
.book-gutter {
  position: absolute;
  width: 28px;
  pointer-events: none;
  z-index: 20001;
  background: linear-gradient(
    90deg,
    transparent,
    var(--spine-soft) 25%,
    var(--spine-shadow) 50%,
    var(--spine-soft) 75%,
    transparent 100%
  );
}
.book-gutter[hidden] {
  display: none;
}
.book-stage.is-turning .page-slot {
  pointer-events: none;
}
.book-stage.is-turning .text-content {
  user-select: none;
}
.reader-toolbar {
  background: var(--card);
  border-top: 1px solid var(--line);
  padding: 0 16px env(safe-area-inset-bottom, 0px);
  min-width: 0;
}
.reader-preload {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 40;
  width: min(300px, calc(100vw - 64px));
  padding: 20px 22px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--card);
  box-shadow: var(--shadow);
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.22s ease;
}
.reader-preload[hidden] {
  display: none;
}
.reader-preload.is-complete {
  opacity: 0;
}
.preload-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 11px;
  line-height: 18px;
  font-variant-numeric: tabular-nums;
}
.preload-label {
  flex: 1;
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0.2px;
}
.preload-percent {
  min-width: 4ch;
  text-align: right;
}
.preload-track {
  height: 3px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--line);
}
.preload-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--text-secondary);
  transition: width 0.16s ease;
}
@media (prefers-reduced-motion: reduce) {
  .reader-preload,
  .preload-fill {
    transition: none;
  }
}
.book-stage.is-preloading > .page-slot {
  filter: blur(6px);
  opacity: 0.6;
}
.book-stage.is-preloading.is-revealing > .page-slot {
  filter: blur(0);
  opacity: 1;
  transition:
    filter 0.22s ease,
    opacity 0.22s ease;
}
@media (prefers-reduced-motion: reduce) {
  .book-stage.is-preloading.is-revealing > .page-slot {
    transition: none;
  }
}
.book-stage.is-preloading {
  overflow: hidden;
  touch-action: none;
}
.toolbar-main {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 52px;
  min-width: 0;
}
.toolbar-pager,
.toolbar-nav,
.toolbar-view,
.toolbar-actions {
  display: flex;
  align-items: center;
  flex: none;
  gap: 4px;
}
.toolbar-secondary {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 16px;
}
.toolbar-view {
  border-left: 1px solid var(--line);
  padding-left: 16px;
}
.toolbar-actions {
  margin-left: auto;
}
@media (min-width: 901px) {
  .toolbar-main {
    justify-content: center;
  }
  .toolbar-actions {
    margin-left: 0;
  }
}
.reader-toolbar .toolbar-btn {
  height: 40px;
  min-width: 40px;
  padding: 0 8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  line-height: 1;
  flex: none;
  transition:
    background-color 0.18s var(--ease),
    color 0.18s var(--ease);
}
.reader-toolbar .toolbar-btn:hover {
  color: var(--text);
  background: var(--surface-hover);
  transform: none;
}
.reader-toolbar .toolbar-btn:disabled {
  opacity: 0.45;
}
.reader-toolbar .toolbar-icon {
  width: 40px;
  padding: 0;
}
.reader-toolbar svg {
  width: 16px;
  height: 16px;
  flex: none;
}
.toolbar-pager input {
  width: 40px;
  height: 40px;
  padding: 0;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--card);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  appearance: textfield;
}
.toolbar-pager input::-webkit-inner-spin-button,
.toolbar-pager input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.toolbar-pager .total {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
#zoomLevel {
  min-width: 52px;
  font-variant-numeric: tabular-nums;
}
.toolbar-action.primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 40px;
  min-width: 118px;
  padding: 0 12px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: var(--primary-text);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
}
.toolbar-action.primary:hover {
  background: var(--primary-hover);
  transform: none;
}
.toolbar-action[aria-disabled="true"] {
  opacity: 0.65;
  cursor: wait;
}
.toolbar-action.is-loading svg {
  animation: pdfLoading 1s linear infinite;
}
@keyframes pdfLoading {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .toolbar-action.is-loading svg {
    animation: none;
  }
}
@media (max-width: 900px) {
  .reader-toolbar {
    padding: 0 12px env(safe-area-inset-bottom, 0px);
  }
  .toolbar-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: 48px 40px;
    column-gap: 8px;
    row-gap: 0;
    height: 88px;
  }
  .toolbar-pager {
    grid-column: 1;
    grid-row: 1;
    gap: 2px;
  }
  .toolbar-actions {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
  }
  .toolbar-secondary {
    grid-column: 1 / -1;
    grid-row: 2;
    overflow-x: auto;
    overflow-y: hidden;
    height: 40px;
    gap: 8px;
    scrollbar-width: none;
  }
  .toolbar-secondary::-webkit-scrollbar {
    display: none;
  }
  .toolbar-nav,
  .toolbar-view {
    flex: none;
  }
  .toolbar-view {
    padding-left: 8px;
  }
  .toolbar-action.primary {
    min-width: 116px;
    padding: 0 10px;
  }
}
.reader-panel {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: 350px;
  max-width: 90vw;
  background: var(--card);
  box-shadow: var(--panel-shadow);
  padding: 24px;
  overflow: auto;
  z-index: 100;
}
.reader-panel > button {
  margin-bottom: 22px;
}
.reader-panel[hidden] {
  display: none;
}
.reader-share-dialog {
  position: fixed;
  inset: 0;
  width: min(360px, calc(100vw - 32px));
  max-height: calc(100svh - 40px);
  margin: auto;
  padding: 28px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  color: var(--text);
  box-shadow: var(--panel-shadow);
  text-align: center;
}
.reader-share-dialog::backdrop {
  background: rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(2px);
}
.reader-share-dialog[open] {
  animation: reader-share-appear 0.18s var(--ease);
}
.reader-share-dialog > svg {
  display: block;
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  color: var(--ok);
}
.reader-share-dialog[data-result="error"] > svg {
  color: var(--text-secondary);
}
.reader-share-dialog h2 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}
.reader-share-dialog p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.8;
}
.reader-share-dialog input {
  width: 100%;
  min-width: 0;
  margin-top: 16px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--text-secondary);
  font: inherit;
  font-size: 12px;
}
.reader-share-dialog > button {
  display: block;
  width: 100%;
  min-height: 42px;
  margin-top: 24px;
  border-color: var(--primary);
  background: var(--primary);
  color: var(--primary-text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.reader-share-dialog > button:hover {
  background: var(--primary-hover);
  transform: none;
}
.reader-share-dialog > button:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}
@keyframes reader-share-appear {
  from {
    opacity: 0;
    transform: translateY(4px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .reader-share-dialog[open] {
    animation: none;
  }
}
.reader-panel h2 {
  font-size: 18px;
  font-weight: 600;
}
.reader-panel input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.reader-panel button.result {
  display: block;
  width: 100%;
  text-align: left;
  margin: 10px 0;
  line-height: 1.7;
}
.thumb-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.thumb-grid button {
  padding: 7px;
}
.thumb-grid img {
  width: 100%;
  display: block;
}
.thumb-grid span {
  font-size: 11px;
}
.reader-curl {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 30000;
  pointer-events: none;
}
.reader-curl[hidden] {
  display: none;
}
#readerStatus {
  position: static;
  height: 24px;
  line-height: 24px;
  margin: 0;
  padding: 0 4px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}
#readerStatus:empty {
  visibility: hidden;
}
.reader-action-feedback {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 40000;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: max-content;
  max-width: calc(100vw - 40px);
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(24, 28, 34, 0.92);
  color: var(--primary-text);
  box-shadow:
    0 8px 24px rgba(18, 25, 38, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  opacity: 0;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.reader-action-feedback.is-visible {
  animation: reader-feedback-pop var(--reader-feedback-duration, 1000ms) both;
}
.reader-action-feedback[hidden] {
  display: none;
}
.reader-feedback-icon {
  width: 20px;
  height: 20px;
  flex: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.reader-feedback-icon circle {
  opacity: 0.4;
}
.reader-action-feedback.is-visible .reader-feedback-icon path {
  stroke-dasharray: 1;
  animation: reader-feedback-check 0.28s ease-out 0.1s both;
}
@keyframes reader-feedback-pop {
  0% {
    opacity: 0;
    transform: translate(-50%, calc(-50% + 8px)) scale(0.94);
    animation-timing-function: var(--ease-spring);
  }
  20%,
  80% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    animation-timing-function: ease-in;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, calc(-50% - 6px)) scale(0.98);
  }
}
@keyframes reader-feedback-check {
  from {
    stroke-dashoffset: 1;
  }
  to {
    stroke-dashoffset: 0;
  }
}
@keyframes reader-feedback-fade {
  0%,
  100% {
    opacity: 0;
  }
  20%,
  80% {
    opacity: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .reader-action-feedback.is-visible {
    animation-name: reader-feedback-fade;
  }
  .reader-action-feedback.is-visible .reader-feedback-icon path {
    animation: none;
  }
}
@media (max-width: 900px) {
  #readerStatus {
    height: 20px;
    line-height: 20px;
  }
}
.collection-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 64px;
}
.collection-page .collection-head {
  padding: 0;
  background: transparent;
  border: 0;
  display: block;
}
.collection-topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: start;
  gap: 16px 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.collection-brand,
.collection-page .collection-head h1 {
  font-family: inherit;
  color: var(--brand-text);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
}
.collection-heading {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  min-width: 0;
  min-height: 40px;
  gap: 6px 18px;
}
.collection-titleline {
  display: flex;
  flex: none;
  align-items: center;
  min-height: 40px;
  gap: 14px;
}
.collection-page .collection-head h1 {
  margin: 0;
  padding-left: 14px;
  border-left: 1px solid var(--hairline);
  letter-spacing: 0;
}
.collection-topbar > .collection-links {
  grid-column: 2;
  grid-row: 1;
}
.collection-topbar > .lang-switch {
  grid-column: 3;
  grid-row: 1;
}
.lang-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
}
.lang-option {
  padding: 6px 14px;
  font-size: 13px;
  line-height: 20px;
  border-radius: 7px;
  color: var(--muted);
  text-decoration: none;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}
.lang-option:hover {
  background: var(--surface-hover);
  color: var(--text);
}
.lang-option.is-active:hover {
  background: var(--primary-hover);
}
.lang-option.is-active {
  background: var(--primary);
  color: var(--primary-text);
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  padding: 28px 0 0;
  margin: 0;
}
.catalog-card {
  display: block;
  min-width: 0;
  color: var(--text);
  text-decoration: none;
  background: var(--card);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: none;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}
.catalog-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.catalog-card-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 0;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.catalog-card-cover img {
  width: 100%;
  height: 100%;
  display: block;
  padding: 0;
  object-fit: contain;
  background: var(--card);
}
.catalog-card-info {
  padding: 18px;
}
.catalog-card-info h2 {
  margin: 0 0 7px;
  font-size: 16px;
  line-height: 1.4;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.catalog-card-description {
  margin: 0 0 14px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--muted);
  font-size: 12px;
}
.catalog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}
.catalog-card-open {
  flex: none;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
}
.collection-empty {
  grid-column: 1 / -1;
  padding: 64px 0;
  text-align: center;
  color: var(--muted);
}
.collection-empty p {
  margin: 0 0 10px;
  font-size: 14px;
}
.collection-empty a {
  color: var(--text);
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.collection-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
}
.collection-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 7px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  line-height: 20px;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color 0.18s var(--ease),
    color 0.18s var(--ease);
}
.collection-links a + a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 14px;
  background: var(--hairline);
  transform: translateY(-50%);
  pointer-events: none;
}
.collection-links svg {
  width: 14px;
  height: 14px;
  flex: none;
}
.collection-links a:hover {
  background: var(--surface-hover);
  color: var(--text);
}
.collection-links a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: -2px;
}
.skip-link {
  position: absolute;
  left: 10px;
  top: -100px;
  background: var(--card);
  padding: 10px;
  z-index: 100;
}
.skip-link:focus {
  top: 10px;
}
@media (max-width: 799px) {
  .collection-topbar {
    grid-template-columns: minmax(0, 1fr) clamp(102px, 32vw, 144px);
    gap: 8px;
    padding-bottom: 16px;
  }
  .collection-topbar > .lang-switch {
    grid-column: 2;
    grid-row: 2;
    justify-self: stretch;
  }
  .collection-topbar > .collection-links {
    grid-column: 2;
    grid-row: 1;
    justify-self: stretch;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .collection-topbar > .collection-links,
  .collection-topbar > .lang-switch {
    padding: 2px;
    border-radius: 8px;
  }
  .collection-links a {
    gap: 2px;
    min-height: 28px;
    padding-inline: 1px;
    border-radius: 6px;
    font-size: 11px;
    line-height: 18px;
  }
  .collection-links svg {
    width: 10px;
    height: 10px;
  }
  .collection-topbar .lang-option {
    flex: 1;
    padding: 5px 4px;
    border-radius: 6px;
    font-size: 11px;
    line-height: 18px;
    text-align: center;
  }
  .collection-heading {
    grid-column: 1;
    grid-row: 1 / 3;
    align-self: center;
    display: block;
    min-height: 0;
  }
  .collection-titleline {
    flex-direction: column;
    align-items: flex-start;
    min-width: 0;
    min-height: 0;
    gap: 6px;
  }
  .collection-brand {
    font-size: clamp(28px, 8vw, 36px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0;
  }
  .collection-page .collection-head h1 {
    min-width: 0;
    margin: 0;
    padding-left: 0;
    border-left: 0;
    font-size: clamp(15px, 4.5vw, 22px);
    line-height: 1.3;
    white-space: nowrap;
  }
}
@media (max-width: 639px) {
  .collection-page {
    padding: 20px 16px 48px;
  }
  .catalog-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 359px) {
  .collection-links svg {
    display: none;
  }
}
@media (max-width: 700px) {
  .reader-header {
    padding: 10px 12px;
    gap: 8px;
    flex-wrap: nowrap;
  }
  .reader-header-tools {
    margin-left: auto;
    gap: 4px;
  }
  .reader-header-actions {
    gap: 4px;
  }
  .reader-header .reader-header-control {
    min-height: 36px;
    padding-inline: 7px;
    gap: 4px;
    border-radius: 8px;
    font-size: 11px;
  }
  .reader-header-control svg {
    width: 15px;
    height: 15px;
  }
  .reader-header .reader-share {
    width: 36px;
    padding: 0;
  }
  .reader-header > span {
    display: none;
  }
  .reader-brand {
    font-size: clamp(20px, 5.6vw, 24px);
    line-height: 1.2;
    white-space: nowrap;
  }
  .book-stage[data-mode="book"] {
    min-height: 0;
  }
  .book-stage {
    padding: 15px;
  }
}
@media (max-width: 540px) {
  .reader-header:has(.language-link) #modeBtn {
    width: 36px;
    padding: 0;
  }
  .reader-header:has(.language-link) .reader-mode-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}
@media (max-width: 399px) {
  .reader-header:has(.language-link) .reader-all-catalogs {
    width: 36px;
    padding: 0;
  }
  .reader-header:has(.language-link) .reader-all-catalogs > span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}
@media (max-width: 359px) {
  .reader-header #modeBtn {
    width: 36px;
    padding: 0;
  }
  .reader-header .reader-mode-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

.book-stage[data-mode="book"] :is(input, textarea, [contenteditable="true"]) {
  user-select: text;
  -webkit-user-select: text;
}
.book-stage[data-mode="linear"] .text-content {
  user-select: text;
}
.leaf-shadow {
  position: absolute;
  z-index: 20005;
  pointer-events: none;
  background: linear-gradient(90deg, var(--leaf-shadow), transparent);
}
.leaf-shadow[hidden] {
  display: none;
}
.turn-zone {
  position: absolute;
  width: 44px;
  height: 56px;
  z-index: 20010;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--text-secondary);
  opacity: 0;
  padding: 0;
  touch-action: none;
  pointer-events: none;
  animation: cover-turn-hint 4.8s ease-in-out infinite;
  -webkit-user-select: none;
  user-select: none;
}
.turn-zone svg {
  width: 16px;
  height: 16px;
}
.linear-reading-hint {
  position: absolute;
  z-index: 20010;
  bottom: 12px;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: max-content;
  max-width: calc(100% - 24px);
  min-height: 44px;
  padding: 5px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
  transform: translateX(-50%);
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
}
.linear-reading-hint svg {
  display: block;
  flex: none;
  width: 16px;
  height: 16px;
  animation: linear-scroll-hint 2.8s ease-in-out infinite;
}
.linear-reading-hint:hover,
.linear-reading-hint:active {
  background: transparent;
  color: var(--text-secondary);
  transform: translateX(-50%);
}
.linear-reading-hint:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}
.linear-reading-hint[hidden],
.book-stage[data-mode="book"] .linear-reading-hint {
  display: none;
}
@keyframes linear-scroll-hint {
  0%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(3px);
  }
}
@keyframes cover-turn-hint {
  0%,
  100% {
    opacity: 0;
    transform: translateY(3px);
  }
  45%,
  55% {
    opacity: 0.65;
    transform: translateY(-3px);
  }
}
.turn-zone:hover {
  background: transparent;
}
.turn-zone:focus-visible {
  animation: none;
  opacity: 0.7;
  outline: 2px solid var(--primary);
  outline-offset: -4px;
}
.turn-zone:disabled {
  cursor: default;
  opacity: 0.12;
}
.turn-zone[hidden],
.book-stage[data-mode="linear"] .turn-zone,
.book-stage[data-zoomed="true"] .turn-zone {
  display: none;
}
.book-stage.is-turning .turn-zone {
  pointer-events: none;
  visibility: hidden;
}
@media (prefers-reduced-motion: reduce) {
  .linear-reading-hint svg {
    animation: none;
  }
  .turn-zone {
    animation: none;
    opacity: 0.45;
  }
}