/*!
 * pdflip — open-source PDF flip book
 * Theme with the custom properties below; everything else is layout.
 */
.pdflip {
  --pdflip-color: #1f2328;
  --pdflip-muted: #59636e;
  --pdflip-surface: #ffffff;
  --pdflip-toolbar-background: rgb(255 255 255 / 0.94);
  --pdflip-border: rgb(31 35 40 / 0.15);
  --pdflip-accent: #0b5cad;
  --pdflip-accent-contrast: #ffffff;
  --pdflip-highlight: rgb(255 196 0 / 0.45);
  --pdflip-highlight-active: rgb(255 120 0 / 0.55);
  --pdflip-page-shadow: 0 2px 14px rgb(0 0 0 / 0.22);
  --pdflip-radius: 6px;
  --pdflip-button-size: 2.5rem;
  --pdflip-panel-width: 17rem;
  --pdflip-font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  container-type: inline-size;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 12rem;
  color: var(--pdflip-color);
  background: var(--pdflip-background, transparent);
  font-family: var(--pdflip-font);
  font-size: 0.9375rem;
  line-height: 1.4;
  outline: none;
}

.pdflip[data-theme="dark"],
.pdflip-lightbox .pdflip {
  --pdflip-color: #e6edf3;
  --pdflip-muted: #9198a1;
  --pdflip-surface: #1c2128;
  --pdflip-toolbar-background: rgb(22 27 34 / 0.94);
  --pdflip-border: rgb(230 237 243 / 0.18);
  --pdflip-accent: #4493f8;
  --pdflip-accent-contrast: #0d1117;
}

.pdflip:focus-visible {
  outline: 2px solid var(--pdflip-accent);
  outline-offset: 2px;
}

.pdflip *,
.pdflip *::before,
.pdflip *::after {
  box-sizing: border-box;
}

.pdflip[data-controls="top"] {
  flex-direction: column-reverse;
}

/* ------------------------------------------------------------------ main area */

.pdflip-main {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}

.pdflip-viewport {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  min-width: 0;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.pdflip-viewport.is-zoomed {
  cursor: grab;
}

.pdflip-viewport.is-zoomed:active {
  cursor: grabbing;
}

.pdflip-stage {
  transform-origin: 50% 50%;
  will-change: transform;
}

.pdflip-book {
  position: relative;
  perspective: 3000px;
}

.pdflip-book {
  transition: transform 0.45s ease;
}

.pdflip-book.is-rtl,
.pdflip-book.is-rtl .pdflip-page-content {
  transform: scaleX(-1);
}

/* a closed book sits in the middle and slides aside when it is opened */
.pdflip-book.is-double.is-front-cover {
  transform: translateX(-25%);
}

.pdflip-book.is-double.is-back-cover {
  transform: translateX(25%);
}

.pdflip-book.is-rtl.is-double.is-front-cover {
  transform: translateX(25%) scaleX(-1);
}

.pdflip-book.is-rtl.is-double.is-back-cover {
  transform: translateX(-25%) scaleX(-1);
}

/* ------------------------------------------------------------------ pages */

.pdflip-page {
  position: absolute;
  top: 0;
  width: var(--pdflip-page-width);
  height: var(--pdflip-page-height);
  background: #fff;
  box-shadow: var(--pdflip-page-shadow);
}

.pdflip-page.is-empty {
  visibility: hidden;
}

.pdflip-slot-left {
  left: 0;
}

.pdflip-slot-right {
  left: var(--pdflip-page-width);
}

.pdflip-book.is-single .pdflip-slot-left {
  display: none;
}

.pdflip-book.is-single .pdflip-slot-right {
  left: 0;
}

/* closed book: the cover alone in the middle */
.pdflip-book.is-front-cover .pdflip-slot-left,
.pdflip-book.is-back-cover .pdflip-slot-right {
  box-shadow: none;
}

/* paper curving into the spine */
.pdflip-book.is-double .pdflip-page:not(.is-empty)::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.pdflip-book.is-double .pdflip-slot-left::after {
  background: linear-gradient(to left, rgb(0 0 0 / 0.16), rgb(0 0 0 / 0.04) 4%, transparent 9%);
}

.pdflip-book.is-double .pdflip-slot-right::after {
  background: linear-gradient(to right, rgb(0 0 0 / 0.16), rgb(0 0 0 / 0.04) 4%, transparent 9%);
}

.pdflip-page.is-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  background:
    linear-gradient(100deg, transparent 30%, rgb(0 0 0 / 0.05) 50%, transparent 70%) 0 0 / 200% 100%;
  animation: pdflip-shimmer 1.4s linear infinite;
}

@keyframes pdflip-shimmer {
  to {
    background-position: -200% 0;
  }
}

.pdflip-page-content {
  position: absolute;
  inset: 0;
}

.pdflip-page-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.pdflip-links,
.pdflip-highlights {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.pdflip-link {
  position: absolute;
  pointer-events: auto;
  border-radius: 2px;
}

.pdflip-link:hover,
.pdflip-link:focus-visible {
  background: rgb(11 92 173 / 0.12);
  outline: 2px solid rgb(11 92 173 / 0.5);
}

.pdflip-highlight {
  position: absolute;
  background: var(--pdflip-highlight);
  mix-blend-mode: multiply;
  border-radius: 2px;
}

.pdflip-highlight.is-active {
  background: var(--pdflip-highlight-active);
}

/* ------------------------------------------------------------------ the turning sheet */

.pdflip-turn {
  position: absolute;
  top: 0;
  width: 0;
  height: 0;
  z-index: 5;
  pointer-events: none;
}

.pdflip-turn[hidden] {
  display: none;
}

.pdflip-face,
.pdflip-shade,
.pdflip-hard-leaf {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--pdflip-page-width);
  height: var(--pdflip-page-height);
}

.pdflip-face {
  overflow: hidden;
  background: #fff;
}

.pdflip-face.is-empty {
  background: #f4f2ee;
}

.pdflip-turn-back {
  transform-origin: 0 0;
}

.pdflip-turn-back-wrap {
  position: absolute;
  top: 0;
  left: 0;
  filter: drop-shadow(0 0 8px rgb(0 0 0 / 0.28));
}

.pdflip-turn-back-wrap[hidden],
.pdflip-shade[hidden] {
  display: none;
}

.pdflip-shade {
  overflow: hidden;
  z-index: 1;
}

.pdflip-shade-gradient {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
  pointer-events: none;
}

.pdflip-shade-cast {
  background: linear-gradient(
    to right,
    rgb(0 0 0 / calc(0.42 * (1 - var(--pdflip-progress, 0)))) 0,
    rgb(0 0 0 / 0) var(--pdflip-shade-width, 60px)
  );
}

.pdflip-shade-crease {
  background: linear-gradient(
    to right,
    rgb(0 0 0 / 0.2) 0,
    rgb(0 0 0 / 0.05) calc(var(--pdflip-shade-width, 60px) * 0.25),
    rgb(0 0 0 / 0) calc(var(--pdflip-shade-width, 60px) * 0.6)
  );
}

.pdflip-shade-back {
  z-index: 4;
  background: linear-gradient(
    to right,
    rgb(0 0 0 / 0.2) 0,
    rgb(255 255 255 / 0.08) calc(var(--pdflip-shade-width, 60px) * 0.5),
    rgb(0 0 0 / 0) var(--pdflip-shade-width, 60px),
    rgb(0 0 0 / 0.06) 100%
  );
}

.pdflip-turn:not(.is-hard) .pdflip-hard-leaf,
.pdflip-turn.is-hard > :not(.pdflip-hard-leaf) {
  display: none;
}

.pdflip-hard-leaf {
  transform-origin: 0 50%;
  transform-style: preserve-3d;
}

.pdflip-hard-leaf .pdflip-face {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow: var(--pdflip-page-shadow);
}

.pdflip-hard-leaf .pdflip-face::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / calc(0.25 * var(--pdflip-light, 0)));
}

.pdflip-hard-back {
  transform: rotateY(180deg);
}

/* ------------------------------------------------------------------ text layer (pdf.js) */

.pdflip-text {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: clip;
  line-height: 1;
  text-align: initial;
  forced-color-adjust: none;
  transform-origin: 0 0;
  pointer-events: none;
  --scale-round-x: 1px;
  --scale-round-y: 1px;
  --min-font-size: 1;
  --text-scale-factor: calc(var(--total-scale-factor) * var(--min-font-size));
  --min-font-size-inv: calc(1 / var(--min-font-size));
}

.pdflip-viewport.is-zoomed .pdflip-text {
  pointer-events: auto;
}

.pdflip-text :is(span, br) {
  position: absolute;
  color: transparent;
  white-space: pre;
  cursor: text;
  transform-origin: 0% 0%;
  user-select: text;
  -webkit-user-select: text;
}

.pdflip-text > :not(.markedContent),
.pdflip-text .markedContent span:not(.markedContent) {
  --font-height: 0;
  --scale-x: 1;
  --rotate: 0deg;
  font-size: calc(var(--text-scale-factor) * var(--font-height));
  transform: rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv));
}

.pdflip-text .markedContent {
  display: contents;
}

.pdflip-text ::selection {
  background: rgb(0 90 200 / 0.25);
}

/* ------------------------------------------------------------------ toolbar */

.pdflip-toolbar {
  position: relative;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem 0.75rem;
  padding: 0.25rem 0.5rem;
  background: var(--pdflip-toolbar-background);
  border-top: 1px solid var(--pdflip-border);
}

.pdflip[data-controls="top"] .pdflip-toolbar {
  border-top: 0;
  border-bottom: 1px solid var(--pdflip-border);
}

.pdflip-toolbar[hidden] {
  display: none;
}

.pdflip-toolbar-group {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.pdflip-toolbar-group:empty {
  display: none;
}

.pdflip-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--pdflip-button-size);
  height: var(--pdflip-button-size);
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  border-radius: var(--pdflip-radius);
  cursor: pointer;
}

.pdflip-button:hover:not(:disabled) {
  background: rgb(127 127 127 / 0.15);
}

.pdflip-button:focus-visible,
.pdflip-thumbnail:focus-visible,
.pdflip-popover-item:focus-visible {
  outline: 2px solid var(--pdflip-accent);
  outline-offset: -2px;
}

.pdflip-button:disabled {
  opacity: 0.35;
  cursor: default;
}

.pdflip-button[aria-pressed="true"] {
  color: var(--pdflip-accent-contrast);
  background: var(--pdflip-accent);
}

.pdflip-icon {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pdflip-page-number {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0 0.25rem;
  color: var(--pdflip-muted);
  font-variant-numeric: tabular-nums;
}

.pdflip-page-input {
  width: 4.5em;
  padding: 0.25rem 0.375rem;
  color: var(--pdflip-color);
  font: inherit;
  text-align: center;
  background: var(--pdflip-surface);
  border: 1px solid var(--pdflip-border);
  border-radius: var(--pdflip-radius);
}

.pdflip-popover {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.5rem);
  z-index: 20;
  display: flex;
  flex-direction: column;
  min-width: 12rem;
  padding: 0.25rem;
  background: var(--pdflip-surface);
  border: 1px solid var(--pdflip-border);
  border-radius: var(--pdflip-radius);
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.18);
}

.pdflip[data-controls="top"] .pdflip-popover {
  top: calc(100% + 0.5rem);
  bottom: auto;
}

.pdflip-popover-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.625rem;
  color: inherit;
  font: inherit;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: calc(var(--pdflip-radius) - 2px);
  cursor: pointer;
}

.pdflip-popover-item:hover {
  background: rgb(127 127 127 / 0.15);
}

.pdflip-status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* small books: only the essentials stay in the toolbar */
@container (max-width: 34rem) {
  .pdflip-button-first,
  .pdflip-button-last,
  .pdflip-button-zoomIn,
  .pdflip-button-zoomOut,
  .pdflip-button-sound,
  .pdflip-button-pageMode,
  .pdflip-button-autoplay {
    display: none;
  }

  .pdflip-toolbar {
    justify-content: center;
  }
}

/* ------------------------------------------------------------------ side panel */

.pdflip-panel {
  display: flex;
  flex: 0 0 var(--pdflip-panel-width);
  flex-direction: column;
  width: var(--pdflip-panel-width);
  overflow: auto;
  background: var(--pdflip-surface);
  border-right: 1px solid var(--pdflip-border);
  overscroll-behavior: contain;
}

.pdflip-panel[hidden] {
  display: none;
}

@container (max-width: 45rem) {
  .pdflip-panel {
    position: absolute;
    inset: 0 auto 0 0;
    z-index: 8;
    max-width: 85%;
    box-shadow: 4px 0 24px rgb(0 0 0 / 0.2);
  }
}

.pdflip-panel-header {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0.25rem 0.25rem 0.75rem;
  background: var(--pdflip-surface);
  border-bottom: 1px solid var(--pdflip-border);
}

.pdflip-panel-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.pdflip-panel-empty {
  padding: 0.75rem;
  color: var(--pdflip-muted);
}

.pdflip-thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(6.5rem, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0.75rem;
  list-style: none;
}

.pdflip-thumbnail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  width: 100%;
  padding: 0.25rem;
  color: var(--pdflip-muted);
  font: inherit;
  font-size: 0.8125rem;
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--pdflip-radius);
  cursor: pointer;
}

.pdflip-thumbnail canvas {
  display: block;
  width: 100%;
  background: #fff;
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.2);
}

.pdflip-thumbnail[aria-current="page"] {
  color: var(--pdflip-accent);
  border-color: var(--pdflip-accent);
}

.pdflip-outline {
  padding: 0.5rem 0;
}

.pdflip-outline-list {
  margin: 0;
  padding: 0 0 0 0.75rem;
  list-style: none;
}

.pdflip-outline > .pdflip-outline-list {
  padding-left: 0;
}

.pdflip-outline :is(button, a) {
  display: block;
  width: 100%;
  padding: 0.375rem 0.75rem;
  color: inherit;
  font: inherit;
  text-align: left;
  text-decoration: none;
  background: transparent;
  border: 0;
  border-radius: var(--pdflip-radius);
  cursor: pointer;
}

.pdflip-outline :is(button, a):hover:not(:disabled) {
  background: rgb(127 127 127 / 0.15);
}

.pdflip-outline button:disabled {
  cursor: default;
}

.pdflip-search {
  padding: 0.75rem 0.75rem 0;
}

.pdflip-search-input {
  width: 100%;
  padding: 0.5rem 0.625rem;
  color: var(--pdflip-color);
  font: inherit;
  background: var(--pdflip-surface);
  border: 1px solid var(--pdflip-border);
  border-radius: var(--pdflip-radius);
}

.pdflip-search-summary {
  margin: 0;
  padding: 0.5rem 0.75rem;
  color: var(--pdflip-muted);
  font-size: 0.8125rem;
}

.pdflip-search-results {
  margin: 0;
  padding: 0 0.5rem 0.75rem;
  list-style: none;
}

.pdflip-search-hit {
  display: block;
  width: 100%;
  padding: 0.5rem;
  color: inherit;
  font: inherit;
  font-size: 0.8125rem;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: var(--pdflip-radius);
  cursor: pointer;
}

.pdflip-search-hit:hover,
.pdflip-search-hit.is-active {
  background: rgb(127 127 127 / 0.15);
}

.pdflip-search-page {
  display: block;
  color: var(--pdflip-muted);
  font-size: 0.75rem;
}

.pdflip-search-snippet mark {
  color: inherit;
  background: var(--pdflip-highlight);
}

/* ------------------------------------------------------------------ states */

.pdflip-loader {
  position: absolute;
  inset: 50% 20% auto;
  height: 4px;
  overflow: hidden;
  background: var(--pdflip-border);
  border-radius: 2px;
}

.pdflip-loader-bar {
  width: calc(var(--pdflip-loaded, 0.1) * 100%);
  height: 100%;
  background: var(--pdflip-accent);
  transition: width 0.2s;
}

.pdflip-error {
  margin: auto;
  padding: 1rem;
  color: var(--pdflip-muted);
  text-align: center;
}

.pdflip.is-fullscreen,
.pdflip:fullscreen {
  width: 100%;
  height: 100%;
  background: var(--pdflip-fullscreen-background, #2b2f33);
}

.pdflip:fullscreen .pdflip-main,
.pdflip.is-pseudo-fullscreen .pdflip-main {
  height: auto !important;
}

.pdflip.is-pseudo-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
}

/* ------------------------------------------------------------------ lightbox */

.pdflip-lightbox {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  color: #e6edf3;
  background: #0d1117;
  border: 0;
}

.pdflip-lightbox::backdrop {
  background: rgb(0 0 0 / 0.6);
}

.pdflip-lightbox-book {
  height: 100%;
}

.pdflip-lightbox .pdflip-main {
  height: auto !important;
}

.pdflip-lightbox-close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 30;
  color: #fff;
  background: rgb(0 0 0 / 0.45);
}

.pdflip-lightbox-close:hover {
  background: rgb(0 0 0 / 0.7) !important;
}

html.pdflip-lightbox-open {
  overflow: hidden;
}

/* ------------------------------------------------------------------ triggers & dFlip markup */

[data-pdflip-lightbox],
._df_thumb,
._df_button {
  cursor: pointer;
}

._df_thumb.pdflip-compat {
  display: inline-flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 10rem;
  margin: 0 1rem 1rem 0;
  vertical-align: top;
}

._df_thumb.pdflip-compat img {
  display: block;
  width: 100%;
  box-shadow: 0 2px 10px rgb(0 0 0 / 0.2);
  transition: transform 0.2s;
}

._df_thumb.pdflip-compat:hover img {
  transform: translateY(-3px);
}

@media (prefers-reduced-motion: reduce) {
  .pdflip *,
  .pdflip-lightbox * {
    transition: none !important;
    animation: none !important;
  }
}