:root {
  --page: #fef8db;
  --paper: #fffdf5;
  --ink: #2d2117;
  --muted: #71624e;
  --gold: #c79b2c;
  --line: rgba(83, 61, 34, 0.25);
  --toolbar: rgba(255, 253, 245, 0.96);
  --text-size: 1rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--page);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
select,
input {
  font: inherit;
}

button,
select,
input {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffdf5;
  color: var(--ink);
}

button {
  min-height: 30px;
  padding: 0.3rem 0.56rem;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease, color 150ms ease;
}

button:hover,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  border-color: var(--gold);
  outline: 2px solid rgba(199, 155, 44, 0.34);
  outline-offset: 1px;
}

button:hover {
  background: #fff9e8;
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.back-link {
  position: fixed;
  top: 0.75rem;
  left: 0.85rem;
  z-index: 100;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 150ms ease, transform 150ms ease;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--gold);
  transform: translateX(-2px);
  outline: 2px solid rgba(199, 155, 44, 0.4);
  outline-offset: 4px;
}

.reader-page {
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: 0.75rem clamp(0.55rem, 2vw, 1.4rem) 2rem;
}

.reader-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.1rem 10rem 0.45rem;
  text-align: center;
}

.reader-logo {
  width: clamp(38px, 4.6vw, 58px);
  max-height: 72px;
  margin-bottom: 0.25rem;
  object-fit: contain;
}

.reader-header h1,
.text-reader h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
}

.reader-header h1 {
  font-size: clamp(1.65rem, 3.5vw, 2.6rem);
}

.eyebrow {
  margin: 0 0 0.14rem;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.reader-toolbar {
  display: flex;
  align-items: center;
  gap: 0.28rem;
  width: 100%;
  min-height: 40px;
  overflow-x: auto;
  padding: 0.26rem 0.34rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--toolbar);
  box-shadow: 0 4px 12px rgba(70, 48, 20, 0.06);
  scrollbar-width: thin;
}

.reader-toolbar select {
  flex: 0 0 auto;
  height: 30px;
  padding: 0 1.7rem 0 0.5rem;
  cursor: pointer;
}

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

.book-select {
  width: clamp(165px, 21vw, 245px);
}

.part-select {
  width: clamp(145px, 18vw, 215px);
}

.reader-toolbar .square-tool {
  width: 32px;
  padding-inline: 0;
}

.toolbar-divider {
  flex: 0 0 1px;
  align-self: stretch;
  margin: 0.05rem 0.08rem;
  background: var(--line);
}

.reader-status {
  min-height: 1.15rem;
  margin: 0.3rem 0 0.1rem;
  color: var(--muted);
  font-size: 0.76rem;
  text-align: center;
}

.book-stage {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  min-height: 520px;
  overflow: auto;
  padding: 0.35rem 0.2rem 0.2rem;
  background: transparent;
}

.book-shell {
  position: relative;
  display: inline-flex;
  justify-content: center;
  min-width: min-content;
  filter: drop-shadow(0 14px 18px rgba(54, 35, 13, 0.2));
}

.book-spread {
  position: relative;
  display: block;
}

.book-page {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(80, 56, 29, 0.22);
  border-radius: 5px;
  background: var(--paper);
  box-shadow: inset 0 0 16px rgba(73, 48, 20, 0.045), 0 2px 8px rgba(42, 29, 14, 0.15);
}

.book-page canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}


.book-page .textLayer {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  opacity: 0.25;
  line-height: 1;
  text-align: initial;
  transform-origin: 0 0;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}

.book-page .textLayer :is(span, br) {
  position: absolute;
  color: transparent;
  white-space: pre;
  cursor: text;
  transform-origin: 0 0;
}

.book-page .textLayer ::selection {
  background: rgba(246, 216, 109, 0.9);
}

.book-page .annotation-layer {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.book-page .pdf-link {
  position: absolute;
  display: block;
  pointer-events: auto;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.book-page .pdf-link:hover,
.book-page .pdf-link:focus-visible {
  border-color: rgba(199, 155, 44, 0.72);
  background: rgba(246, 216, 109, 0.18);
  outline: 2px solid rgba(199, 155, 44, 0.35);
  outline-offset: 1px;
}

.page-loading {
  width: min(560px, 88vw);
  min-height: min(620px, 66vh);
  display: grid;
  place-items: center;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
  color: var(--muted);
  text-align: center;
}

.page-navigation {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) 74px;
  align-items: center;
  width: min(740px, 100%);
  min-height: 58px;
  margin: 0 auto;
  padding: 0.15rem 0 0.4rem;
}

.page-arrow {
  display: grid;
  place-items: center;
  width: 64px;
  height: 52px;
  min-height: 52px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 3.15rem;
  font-weight: 900;
  line-height: 1;
}

.page-arrow:hover,
.page-arrow:focus-visible {
  border: 0;
  background: transparent;
  color: var(--gold);
  outline: 0;
  transform: scale(1.09);
}

.page-arrow:disabled {
  background: transparent;
  color: var(--muted);
  opacity: 0.22;
}

.page-arrow-left {
  justify-self: start;
}

.page-arrow-right {
  justify-self: end;
}

.location-label {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-reader {
  width: min(1000px, 100%);
  margin: 0.4rem auto 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 253, 245, 0.92);
  box-shadow: 0 8px 18px rgba(63, 45, 19, 0.06);
}

.text-reader[hidden] {
  display: none;
}

.text-reader-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.text-reader h2 {
  font-size: clamp(1.3rem, 2.8vw, 1.8rem);
}

.text-search {
  display: flex;
  gap: 0.38rem;
}

.text-search input {
  width: min(260px, 50vw);
  min-height: 34px;
  padding: 0.42rem 0.58rem;
}

.text-help {
  margin: 0.5rem 0 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.page-text-content {
  max-height: 420px;
  overflow: auto;
  padding: 1rem;
  border: 1px solid rgba(91, 64, 32, 0.16);
  border-radius: 8px;
  background: #fffdf6;
  font-family: Georgia, "Times New Roman", serif;
  font-size: var(--text-size);
  line-height: 1.7;
  white-space: pre-wrap;
}

.page-text-content .word {
  border-radius: 2px;
}

.page-text-content .spoken-word,
.page-text-content mark {
  background: #f6d86d;
  color: #1d160d;
}

.reading-ruler {
  position: fixed;
  left: 0;
  right: 0;
  top: 45%;
  z-index: 90;
  display: none;
  height: 24px;
  pointer-events: none;
  border-top: 1px solid rgba(180, 128, 20, 0.72);
  border-bottom: 1px solid rgba(180, 128, 20, 0.72);
  background: rgba(255, 225, 97, 0.14);
}

body.ruler-enabled .reading-ruler {
  display: block;
}

body.high-contrast {
  --page: #101010;
  --paper: #fff;
  --ink: #fff;
  --muted: #eee;
  --line: rgba(255, 255, 255, 0.62);
  --toolbar: #171717;
}

body.high-contrast button,
body.high-contrast select,
body.high-contrast input,
body.high-contrast .text-reader,
body.high-contrast .page-text-content {
  border-color: #fff;
  background: #050505;
  color: #fff;
}

body.high-contrast .page-arrow {
  border: 0;
  background: transparent;
  color: #fff;
}

body.high-contrast .page-arrow:hover,
body.high-contrast .page-arrow:focus-visible {
  color: #ffda62;
}

body.high-contrast .page-text-content .spoken-word,
body.high-contrast .page-text-content mark {
  background: #ffec4b;
  color: #000;
}

@media (max-width: 760px) {
  .back-link {
    position: static;
    display: inline-block;
    margin: 0.7rem 0 0 0.8rem;
  }

  .reader-page {
    padding-top: 0.2rem;
    padding-inline: 0.42rem;
  }

  .reader-header {
    padding: 0 2.2rem 0.55rem;
  }

  .reader-logo {
    width: 40px;
    max-height: 52px;
  }

  .reader-toolbar {
    justify-content: flex-start;
    border-radius: 7px;
  }

  .book-select {
    width: 188px;
  }

  .part-select {
    width: 158px;
  }

  .page-navigation {
    grid-template-columns: 58px minmax(0, 1fr) 58px;
  }

  .page-arrow {
    width: 52px;
    font-size: 2.65rem;
  }

  .text-reader-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .text-search input {
    flex: 1;
    width: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  button,
  .back-link {
    transition: none;
  }
}

/* Compact reader controls and viewport-fitted single-page display */
.reader-page {
  padding-top: 0.45rem;
  padding-bottom: 0.35rem;
}

.reader-header {
  padding-top: 0;
  padding-bottom: 0.38rem;
}

.reader-logo {
  width: clamp(34px, 3.8vw, 48px);
  max-height: 55px;
  margin-bottom: 0.12rem;
}

.reader-header h1 {
  font-size: clamp(1.45rem, 2.8vw, 2.15rem);
  line-height: 1.05;
}

.reader-toolbar {
  gap: 0.18rem;
  min-height: 36px;
  padding: 0.18rem 0.24rem;
  border-radius: 6px;
}

.reader-toolbar select {
  height: 28px;
  min-height: 28px;
  padding-top: 0;
  padding-bottom: 0;
  font-size: 0.78rem;
}

.book-select {
  width: clamp(145px, 18vw, 210px);
}

.part-select {
  width: clamp(120px, 15vw, 180px);
}

.reader-toolbar .icon-tool {
  display: inline-grid;
  flex: 0 0 29px;
  place-items: center;
  width: 29px;
  height: 28px;
  min-height: 28px;
  padding: 0;
  border-radius: 5px;
  line-height: 1;
}

.reader-toolbar .icon-tool svg {
  width: 17px;
  height: 17px;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.reader-toolbar .icon-tool svg .icon-fill,
.reader-toolbar .icon-tool .icon-fill {
  fill: currentColor;
  stroke: none;
}

.reader-toolbar .text-size-tool {
  width: 32px;
  flex-basis: 32px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  font-weight: 700;
}

.reader-toolbar .icon-tool.is-active,
.reader-toolbar .icon-tool[aria-pressed="true"] {
  border-color: var(--gold);
  background: #fff6d8;
  color: #7a5610;
}

.toolbar-divider {
  margin-inline: 0.03rem;
}

.reader-status {
  min-height: 0.8rem;
  margin: 0.08rem 0;
  font-size: 0.66rem;
  line-height: 1.15;
}

.book-stage {
  min-height: 0;
  overflow: auto;
  padding: 0.15rem 0.15rem 0.1rem;
  align-items: center;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

.book-stage.is-enlarged {
  align-items: flex-start;
}

.book-page {
  flex: 0 0 auto;
}

.page-navigation {
  min-height: 48px;
  padding-top: 0;
  padding-bottom: 0.12rem;
}

.page-arrow {
  height: 44px;
  min-height: 44px;
  font-size: 2.9rem;
}

@media (max-width: 760px) {
  .reader-page {
    padding-bottom: 0.2rem;
  }

  .reader-header {
    padding-bottom: 0.35rem;
  }

  .reader-toolbar {
    min-height: 34px;
  }

  .book-select {
    width: 154px;
  }

  .part-select {
    width: 132px;
  }

  .reader-toolbar .icon-tool {
    flex-basis: 28px;
    width: 28px;
    height: 27px;
    min-height: 27px;
  }
}


/* Final requested reader tidy-up */
.reader-header > .eyebrow {
  display: none;
}

.reader-toolbar {
  width: fit-content;
  max-width: calc(100% - 1rem);
  margin: 0 auto;
  justify-content: center;
}

.reader-status {
  min-height: 0;
  margin: 0;
  padding: 0;
}

.reader-status:empty {
  display: none;
}


.part-select {
  width: clamp(112px, 12vw, 145px);
}

.book-select {
  width: clamp(150px, 18vw, 220px);
}

@media (max-width: 760px) {
  .reader-toolbar {
    justify-content: flex-start;
    max-width: 100%;
  }
}

/* No internal PDF scroll box, keep the border directly on the PDF page */
.book-stage {
  overflow: visible !important;
  scrollbar-width: none;
}

.book-stage::-webkit-scrollbar {
  display: none;
}

.book-stage.is-enlarged {
  overflow: auto !important;
  scrollbar-width: thin;
}

.book-stage.is-enlarged::-webkit-scrollbar {
  display: initial;
}

.book-page {
  border: 1px solid rgba(80, 56, 29, 0.22);
  outline: 3px solid #946D31;
  outline-offset: 0;
}

/* Small gap between toolbar and the PDF page border */
.book-stage {
  padding-top: 0.65rem !important;
}

@media (max-width: 760px) {
  .book-stage {
    padding-top: 0.55rem !important;
  }
}