:root {
  --reader-black: var(--brand-black, #000000);
  --reader-white: var(--brand-white, #ffffff);
  --reader-ivory: var(--brand-secondary-off-white, #f7f6f2);
  --reader-ink: var(--brand-type-ink, #000000);
  --reader-muted: var(--brand-type-muted, #555555);
  --reader-bronze: var(--brand-bronze, #8a6a3e);
  --reader-line: var(--brand-divider, #e5e5e5);
  --reader-ui: var(--font-ui, Inter, "Helvetica Neue", Arial, system-ui, sans-serif);
  --reader-serif: var(--font-serif, "Cormorant Garamond", Georgia, serif);
}

body.book-reader-page {
  background: var(--reader-white);
  color: var(--reader-ink);
}

body.book-reader-page main {
  padding: 0;
}

.book-reader {
  min-height: 100svh;
  background: var(--reader-white);
}

.book-reader-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  padding: clamp(3.5rem, 7vw, 6.5rem) clamp(1.35rem, 7vw, 7.5rem) clamp(2rem, 4vw, 3.5rem);
}

.book-reader-header .eyebrow {
  margin: 0 0 .9rem;
  color: var(--reader-bronze);
  font-family: var(--reader-ui);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
  line-height: 1.2;
  text-transform: uppercase;
}

.book-reader-header h1 {
  max-width: 13ch;
  margin: 0;
  color: var(--reader-ink);
  font-family: var(--reader-serif);
  font-size: clamp(2.8rem, 7vw, 7rem);
  font-weight: 600;
  letter-spacing: 0;
  line-height: .88;
}

.book-reader-header p {
  max-width: 42rem;
  margin: clamp(1rem, 2vw, 1.5rem) 0 0;
  color: var(--reader-muted);
  font-family: var(--reader-ui);
  font-size: clamp(1rem, 1.1vw, 1.12rem);
  line-height: 1.55;
}

.book-reader-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem 1.35rem;
  align-items: center;
  justify-content: flex-end;
  font-family: var(--reader-ui);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.book-reader-header-actions a {
  color: var(--reader-ink);
  text-decoration: none;
}

.book-reader-header-actions a:hover,
.book-reader-header-actions a:focus-visible {
  color: var(--reader-bronze);
}

.book-reader-layout {
  display: grid;
  grid-template-columns: minmax(17rem, 22rem) minmax(0, 1fr);
  gap: clamp(1.4rem, 3vw, 3rem);
  align-items: start;
  padding: 0 clamp(1.35rem, 7vw, 7.5rem) clamp(4rem, 7vw, 7rem);
}

.book-reader-console {
  position: sticky;
  top: clamp(1.25rem, 3vw, 2.5rem);
  display: grid;
  gap: 1rem;
  padding: clamp(1.15rem, 2vw, 1.65rem) 0 0;
  background: var(--reader-white);
  color: var(--reader-ink);
  font-family: var(--reader-ui);
}

.book-reader-console-head {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--reader-line);
}

.book-reader-console-head span,
.book-reader-field span,
.book-reader-progress-wrap span {
  color: var(--reader-muted);
  font-family: var(--reader-ui);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.book-reader-console-head strong {
  font-family: var(--reader-serif);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1;
}

.book-reader-disclosure {
  margin: 0;
  color: var(--reader-muted);
  font-size: .9rem;
  line-height: 1.45;
}

.book-reader-primary-controls,
.book-reader-control-grid {
  display: grid;
  gap: .7rem;
}

.book-reader-control-grid {
  grid-template-columns: 1fr 1fr;
}

.book-reader button,
.book-reader select {
  width: 100%;
  min-height: 2.9rem;
  border: 1px solid var(--reader-line);
  border-radius: 0;
  background: var(--reader-white);
  color: var(--reader-ink);
  font-family: var(--reader-ui);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.book-reader button {
  cursor: pointer;
}

.book-reader button:hover,
.book-reader button:focus-visible,
.book-reader select:focus-visible,
.book-reader input:focus-visible {
  border-color: var(--reader-bronze);
  outline: 2px solid var(--reader-bronze);
  outline-offset: 3px;
}

.book-reader button:disabled {
  cursor: wait;
  opacity: .58;
}

.book-reader .book-reader-control-main {
  border-color: var(--reader-black);
  background: var(--reader-black);
  color: var(--reader-white);
}

.book-reader-field {
  display: grid;
  gap: .45rem;
}

.book-reader select {
  padding: 0 .85rem;
  appearance: auto;
}

.book-reader-progress-wrap {
  display: grid;
  gap: .55rem;
}

.book-reader-progress-wrap input {
  width: 100%;
  accent-color: var(--reader-bronze);
}

.book-reader-stage {
  min-width: 0;
  background: var(--reader-ivory);
  display: grid;
  justify-items: center;
  align-content: start;
  height: min(82rem, 86svh);
  overflow: auto;
  padding: clamp(.9rem, 2vw, 1.5rem);
  touch-action: pan-x pan-y pinch-zoom;
  -webkit-overflow-scrolling: touch;
}

.book-reader-pdf-status {
  justify-self: start;
  margin: 0 0 .9rem;
  color: var(--reader-muted);
  font-family: var(--reader-ui);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.book-reader-canvas {
  display: block;
  border: 0;
  max-width: 100%;
  height: auto;
  background: var(--reader-white);
}

@media (max-width: 900px) {
  .book-reader-header {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .book-reader-header-actions {
    justify-content: flex-start;
  }

  .book-reader-layout {
    grid-template-columns: 1fr;
  }

  .book-reader-console {
    position: static;
  }
}

@media (max-width: 640px) {
  body.book-reader-page main {
    padding-bottom: 15.5rem;
  }

  .book-reader-header,
  .book-reader-layout {
    padding-right: 1.25rem;
    padding-left: 1.25rem;
  }

  .book-reader-header {
    padding-top: 2rem;
    padding-bottom: 1.35rem;
  }

  .book-reader-header h1 {
    font-size: clamp(2.15rem, 10.5vw, 3.35rem);
  }

  .book-reader-console {
    position: fixed;
    z-index: 20;
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .48rem;
    padding: .62rem 1rem calc(.68rem + env(safe-area-inset-bottom));
    border-top: 1px solid var(--reader-line);
    background: rgba(255, 255, 255, .97);
  }

  .book-reader-console-head {
    grid-column: 1 / 3;
    padding-bottom: .35rem;
  }

  .book-reader-console-head strong {
    font-size: 1.05rem;
  }

  .book-reader-disclosure {
    grid-column: 3 / 4;
    align-self: center;
    font-size: .7rem;
    line-height: 1.25;
  }

  .book-reader-primary-controls {
    grid-template-columns: 1fr 1fr 1fr;
    grid-column: 1 / -1;
  }

  .book-reader-primary-controls button {
    min-height: 2.55rem;
    padding: 0 .45rem;
    font-size: .62rem;
    letter-spacing: .08em;
  }

  .book-reader-field {
    gap: .3rem;
  }

  .book-reader-console > .book-reader-field {
    grid-column: 1 / 2;
  }

  .book-reader-field > span {
    display: none;
  }

  .book-reader-control-grid {
    grid-column: 2 / -1;
    grid-template-columns: 1fr 1fr;
  }

  .book-reader-progress-wrap {
    grid-column: 1 / -1;
  }

  .book-reader select {
    min-height: 2.35rem;
    font-size: .66rem;
    letter-spacing: .08em;
  }

  .book-reader-stage {
    margin-right: -1.25rem;
    margin-left: -1.25rem;
    height: max(16rem, calc(100svh - 37rem));
    padding: .75rem;
  }
}

@media (max-width: 430px) {
  body.book-reader-page main {
    padding-bottom: 17rem;
  }

  .book-reader-console {
    padding-right: .75rem;
    padding-left: .75rem;
  }

  .book-reader-primary-controls button {
    font-size: .58rem;
  }

  .book-reader-stage {
    height: max(16rem, calc(100svh - 37rem));
  }
}

@media (prefers-reduced-motion: reduce) {
  .book-reader * {
    scroll-behavior: auto;
  }
}