.khedr-pdf-book-wrap,
.khedr-pdf-book-wrap * {
  box-sizing: border-box;
}

.khedr-pdf-book-wrap {
  --khedr-surface: #ffffff;
  --khedr-surface-soft: #f5f6f8;
  --khedr-line: #e5e7eb;
  --khedr-text: #20232a;
  --khedr-muted: #747983;
  position: relative;
  width: 100%;
  color: #17191d;
  font-family: inherit;
  isolation: isolate;
}

.khedr-book-tabs-wrap {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 14px;
}

.khedr-book-tabs-label {
  color: #6c717b;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  line-height: 1;
  text-transform: uppercase;
}

.khedr-book-tabs {
  display: flex;
  align-items: center;
  gap: 7px;
  max-width: 100%;
  padding: 6px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid rgba(20, 24, 31, .08);
  border-radius: 16px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 12px 35px rgba(24, 28, 36, .07);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.khedr-book-tab {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 5px 15px 5px 7px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: #343842;
  font-family: inherit;
  cursor: pointer;
  transition: color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
}

.khedr-book-tab:hover {
  background: rgba(17, 20, 26, .05);
  transform: translateY(-1px);
}

.khedr-book-tab:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 25%, transparent);
  outline-offset: 2px;
}

.khedr-book-tab.is-active {
  background: var(--khedr-book-accent, #e84ea0);
  color: #fff;
  box-shadow: 0 9px 24px color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 24%, transparent);
}

.khedr-book-tab-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: rgba(17, 20, 26, .06);
  color: #7b808a;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .06em;
}

.khedr-book-tab.is-active .khedr-book-tab-index {
  background: rgba(255, 255, 255, .2);
  color: #fff;
}

.khedr-book-tab-title {
  max-width: 230px;
  overflow: hidden;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.khedr-book-stage {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  border: 1px solid #e2e5e9;
  border-radius: 26px;
  background:
    radial-gradient(circle at 50% -18%, color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 5%, #fff), transparent 48%),
    linear-gradient(145deg, #fafbfc 0%, #f1f3f6 58%, #f7f8fa 100%);
  box-shadow: 0 24px 65px rgba(27, 33, 44, .11), inset 0 1px #fff;
}

.khedr-book-stage::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .5;
  background-image:
    linear-gradient(rgba(31, 37, 49, .026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 37, 49, .026) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, #000, transparent 88%);
}

.khedr-book-stage-head {
  position: relative;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 76px;
  padding: 15px 18px;
  border-bottom: 1px solid var(--khedr-line);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.khedr-book-document-meta {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.khedr-book-file-badge {
  display: inline-flex;
  flex: 0 0 42px;
  align-items: center;
  justify-content: center;
  height: 42px;
  border: 1px solid color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 70%, #fff);
  border-radius: 12px;
  background: var(--khedr-book-accent, #e84ea0);
  color: #fff;
  font-size: 10px;
  font-weight: 950;
  letter-spacing: .08em;
  box-shadow: 0 10px 25px color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 20%, transparent);
}

.khedr-book-document-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
}

.khedr-book-current-title {
  max-width: 430px;
  overflow: hidden;
  color: var(--khedr-text);
  font-size: 14px;
  font-weight: 850;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.khedr-book-document-state {
  color: var(--khedr-muted);
  font-size: 11px;
  font-weight: 650;
}

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

.khedr-book-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid #dfe2e7;
  border-radius: 11px;
  background: #fff;
  color: #343943;
  font-family: inherit;
  cursor: pointer;
  transition: background .18s ease, transform .18s ease, border-color .18s ease;
}

.khedr-book-btn:hover,
.khedr-book-btn[aria-pressed='true'] {
  border-color: color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 38%, #dfe2e7);
  background: color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 9%, #fff);
  color: var(--khedr-book-accent, #e84ea0);
  transform: translateY(-1px);
}

.khedr-book-btn:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 35%, transparent);
  outline-offset: 2px;
}

.khedr-book-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.khedr-book-page-status {
  min-width: 68px;
  color: #3e434d;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  text-align: center;
}

.khedr-book-viewport {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 555px;
  padding: 24px 28px 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .3), rgba(232, 235, 240, .26));
}

.khedr-book-frame {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  filter: drop-shadow(0 22px 28px rgba(26, 31, 41, .18));
  transition: transform .28s cubic-bezier(.2, .8, .2, 1), filter .28s ease;
}

.khedr-book-frame.is-zoomed {
  z-index: 8;
  filter: drop-shadow(0 28px 38px rgba(26, 31, 41, .24));
  transform: scale(1.1);
}

.khedr-book {
  max-width: 100%;
  margin: 0 auto;
}

.khedr-book .page {
  overflow: hidden;
  border: 0;
  background: #fff;
}

.khedr-page-inner {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(12, 15, 20, .08);
}

.khedr-page-inner::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  box-shadow: inset 0 0 22px rgba(15, 18, 24, .08);
  pointer-events: none;
}

.khedr-page-inner canvas {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.khedr-page-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 13px;
  padding: 16%;
  background: #f7f8fa;
}

.khedr-page-placeholder span {
  display: block;
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8ebef;
}

.khedr-page-placeholder span:nth-child(2) { width: 82%; }
.khedr-page-placeholder span:nth-child(3) { width: 58%; }

.khedr-page-placeholder span::after {
  content: '';
  display: block;
  width: 45%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .9), transparent);
  animation: khedrPageShimmer 1.4s ease-in-out infinite;
  transform: translateX(-120%);
}

.khedr-page-placeholder small {
  margin-top: 10px;
  color: #969ca6;
  font-size: 11px;
  font-weight: 750;
  text-align: center;
}

.khedr-page-pending.is-rendering .khedr-page-placeholder {
  background: #fff;
}

@keyframes khedrPageShimmer {
  to { transform: translateX(280%); }
}

.khedr-book-stage-foot {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 10px 18px;
  border-top: 1px solid var(--khedr-line);
  background: rgba(255, 255, 255, .8);
  color: var(--khedr-muted);
  font-size: 10px;
  font-weight: 650;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.khedr-book-render-status {
  color: var(--khedr-book-accent, #e84ea0);
  font-weight: 850;
}

.khedr-book-loader {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(244, 246, 249, .86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.khedr-book-loader-panel {
  width: min(520px, 100%);
  padding: 24px;
  border: 1px solid #e1e4e9;
  border-radius: 22px;
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 28px 65px rgba(27, 33, 44, .14), inset 0 1px #fff;
}

.khedr-book-loader-topline {
  display: flex;
  align-items: center;
  gap: 14px;
}

.khedr-book-loader-mark {
  display: block;
  flex: 0 0 48px;
  height: 48px;
  border-radius: 14px;
  overflow: hidden;
  background: #0f0f27;
  box-shadow: 0 13px 30px color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 26%, transparent);
}

.khedr-book-loader-mark svg {
  display: block;
  width: 100%;
  height: 100%;
}

.khedr-book-loader-copy {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 4px;
}

.khedr-book-loader-copy small {
  color: #8a8f99;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.khedr-book-loader-title {
  overflow: hidden;
  color: #252932;
  font-size: 15px;
  font-weight: 850;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.khedr-book-loader-percent {
  flex: 0 0 auto;
  color: var(--khedr-book-accent, #e84ea0);
  font-size: 24px;
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  letter-spacing: -.04em;
}

.khedr-book-progress-track {
  position: relative;
  height: 9px;
  margin-top: 22px;
  overflow: hidden;
  border-radius: 999px;
  background: #eceef2;
  box-shadow: inset 0 1px 3px rgba(31, 37, 49, .08);
}

.khedr-book-progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--khedr-book-accent, #e84ea0), color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 58%, #fff));
  box-shadow: 0 0 18px color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 45%, transparent);
  transition: width .22s ease;
}

.khedr-book-loader.is-indeterminate .khedr-book-progress-fill {
  width: 38% !important;
  animation: khedrIndeterminate 1.2s ease-in-out infinite;
}

@keyframes khedrIndeterminate {
  0% { left: -42%; }
  55% { left: 66%; }
  100% { left: 106%; }
}

.khedr-book-loader-details {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 18px;
  margin-top: 11px;
  color: #7b808a;
  font-size: 11px;
  font-weight: 650;
}

.khedr-book-loader-bytes {
  font-variant-numeric: tabular-nums;
  text-align: end;
}

.khedr-book-error {
  position: absolute;
  top: 94px;
  left: 50%;
  z-index: 25;
  width: min(520px, calc(100% - 36px));
  padding: 13px 16px;
  border: 1px solid #ffc8ca;
  border-radius: 13px;
  background: rgba(255, 240, 241, .96);
  color: #a6232a;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  transform: translateX(-50%);
  backdrop-filter: blur(12px);
}

.khedr-book-actions {
  position: relative;
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.khedr-book-download-wrap {
  position: relative;
  flex: 1 1 280px;
  max-width: 380px;
}

.khedr-book-action {
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 58px;
  padding: 9px 13px;
  border: 1px solid rgba(20, 24, 31, .09);
  border-radius: 15px;
  background: #fff;
  color: #1d2026;
  font-family: inherit;
  text-align: start;
  box-shadow: 0 12px 30px rgba(24, 28, 36, .08);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.khedr-book-download-toggle {
  width: 100%;
}

.khedr-book-download-link,
.khedr-book-download-link:hover,
.khedr-book-download-link:focus {
  color: #1d2026;
  text-decoration: none;
}

.khedr-book-share {
  flex: 1 1 210px;
  max-width: 280px;
}

.khedr-book-action:hover {
  border-color: color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 30%, rgba(20, 24, 31, .09));
  box-shadow: 0 17px 38px rgba(24, 28, 36, .12);
  transform: translateY(-1px);
}

.khedr-book-action:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 28%, transparent);
  outline-offset: 2px;
}

.khedr-book-action-icon {
  display: inline-flex;
  flex: 0 0 38px;
  align-items: center;
  justify-content: center;
  height: 38px;
  border-radius: 11px;
  background: color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 12%, #fff);
  color: var(--khedr-book-accent, #e84ea0);
}

.khedr-book-action svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.khedr-book-action-copy {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 3px;
}

.khedr-book-action-copy > span {
  font-size: 13px;
  font-weight: 850;
  line-height: 1.15;
}

.khedr-book-action-copy small {
  overflow: hidden;
  color: #858a94;
  font-size: 10px;
  font-weight: 650;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.khedr-book-share-note {
  position: absolute;
  top: calc(100% + 7px);
  left: 50%;
  z-index: 35;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--khedr-book-accent, #e84ea0);
  color: #fff;
  font-size: 10px;
  font-weight: 750;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -4px);
  transition: opacity .18s ease, transform .18s ease;
}

.khedr-book-share-note.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.khedr-book-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.khedr-thumb {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 7px;
  overflow: hidden;
  border: 1px solid rgba(20, 24, 31, .09);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(24, 28, 36, .06);
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}

.khedr-thumb:hover,
.khedr-thumb.is-active {
  border-color: var(--khedr-book-accent, #e84ea0);
  box-shadow: 0 10px 25px color-mix(in srgb, var(--khedr-book-accent, #e84ea0) 13%, transparent);
  transform: translateY(-2px);
}

.khedr-thumb-preview {
  display: block;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(110deg, #eceef2 20%, #f7f8fa 42%, #eceef2 64%);
  background-size: 250% 100%;
}

.khedr-thumb.is-loading .khedr-thumb-preview {
  animation: khedrThumbShimmer 1.4s linear infinite;
}

@keyframes khedrThumbShimmer {
  to { background-position: -250% 0; }
}

.khedr-thumb-preview img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.khedr-thumb-label {
  color: #686e78;
  font-size: 10px;
  font-weight: 800;
  text-align: center;
}

.khedr-pdf-book-empty {
  padding: 20px;
  border: 1px dashed rgba(20, 24, 31, .2);
  border-radius: 14px;
  color: #777d87;
  text-align: center;
}

.khedr-book-loader.is-hidden,
.khedr-book-error.is-hidden,
.is-hidden {
  display: none !important;
}

@media (max-width: 1024px) {
  .khedr-book-stage { min-height: 620px; }
  .khedr-book-viewport { min-height: 495px; padding: 20px 18px 14px; }
  .khedr-book-current-title { max-width: 320px; }
}

@media (max-width: 767px) {
  .khedr-pdf-book-wrap { overflow: visible; }

  .khedr-book-tabs-wrap { margin-bottom: 10px; }
  .khedr-book-tabs { border-radius: 13px; }
  .khedr-book-tab { min-height: 40px; padding: 4px 12px 4px 5px; }
  .khedr-book-tab-index { width: 30px; height: 30px; }
  .khedr-book-tab-title { max-width: 180px; font-size: 12px; }

  .khedr-book-stage { min-height: 535px; border-radius: 19px; }
  .khedr-book-stage-head { min-height: 68px; padding: 12px; gap: 10px; }
  .khedr-book-file-badge { flex-basis: 36px; height: 36px; border-radius: 10px; font-size: 8px; }
  .khedr-book-current-title { max-width: 140px; font-size: 12px; }
  .khedr-book-document-state { font-size: 9px; }
  .khedr-book-controls { gap: 4px; }
  .khedr-book-btn { width: 34px; height: 34px; border-radius: 9px; }
  .khedr-book-btn svg { width: 16px; height: 16px; }
  .khedr-book-page-status { min-width: 48px; font-size: 10px; }

  .khedr-book-viewport { min-height: 410px; padding: 14px 10px 10px; }
  .khedr-book-frame.is-zoomed { transform: scale(1.04); }
  .khedr-book-stage-foot { min-height: 40px; padding: 8px 12px; }
  .khedr-book-interaction-hint { max-width: 74%; font-size: 8px; }

  .khedr-book-loader { padding: 16px; }
  .khedr-book-loader-panel { padding: 18px; border-radius: 18px; }
  .khedr-book-loader-mark { flex-basis: 42px; height: 42px; }
  .khedr-book-loader-title { max-width: 180px; font-size: 13px; }
  .khedr-book-loader-percent { font-size: 20px; }
  .khedr-book-progress-track { margin-top: 18px; }

  .khedr-book-actions { align-items: stretch; gap: 8px; }
  .khedr-book-download-wrap,
  .khedr-book-share { flex: 1 1 100%; max-width: none; }
  .khedr-book-action { min-height: 54px; border-radius: 13px; }
  .khedr-book-thumbs { grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .khedr-pdf-book-wrap *,
  .khedr-pdf-book-wrap *::before,
  .khedr-pdf-book-wrap *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}