.page-reader {
  min-height: 100vh;
}

.reader-page {
  min-height: calc(100vh - 12rem);
  padding: calc(var(--nav-total-h) + clamp(2.5rem, 6vw, 5rem)) var(--px) clamp(4rem, 8vw, 7rem);
  background:
    radial-gradient(ellipse at 14% 12%, rgba(200, 168, 120, 0.1), transparent 32rem),
    linear-gradient(180deg, #0b0b0e 0%, var(--bg) 72%);
}

.reader-page__inner {
  width: min(100%, 1120px);
  margin-inline: auto;
}

.reader-heading {
  margin-bottom: 2rem;
}

.reader-heading h1 {
  margin-top: 0.35rem;
  color: var(--cream);
  font-family: var(--ff-display);
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  font-weight: 400;
  line-height: 1.08;
}

.reader-heading__meta {
  margin-top: 0.5rem;
  color: #b4a68e;
  font-size: 1.05rem;
  font-style: italic;
}

.reader-back {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1rem;
  color: var(--gold-bright);
  font-size: 0.95rem;
  transition: color 180ms ease, gap 180ms ease;
}

.reader-back:hover {
  gap: 0.8rem;
  color: var(--cream);
}

.reader-back .ui-icon {
  width: 1rem;
  height: 1rem;
  vertical-align: initial;
}

.reader-back:focus-visible,
.reader-control:focus-visible,
.reader-page-number:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 3px;
}

.reader-card {
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(17, 17, 22, 0.92);
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.28);
}

.reader-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  min-height: 4.5rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 12, 16, 0.96);
}

.reader-toolbar--bottom {
  justify-content: center;
  min-height: 4rem;
  border-top: 1px solid var(--border);
  border-bottom: 0;
}

.reader-toolbar[hidden],
.reader-page-frame[hidden],
.reader-error[hidden] {
  display: none;
}

.reader-toolbar__pages,
.reader-toolbar__zoom {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.reader-page-label,
.reader-page-total {
  color: var(--text);
  font-size: 0.95rem;
}

.reader-page-number {
  width: 4.25rem;
  min-height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--bg-card);
  color: var(--cream);
  font: inherit;
  line-height: 1;
  text-align: center;
  appearance: textfield;
  -moz-appearance: textfield;
}

.reader-page-number::-webkit-inner-spin-button,
.reader-page-number::-webkit-outer-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.reader-control {
  display: inline-grid;
  place-items: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: #141419;
  color: var(--gold-bright);
  line-height: 1;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.reader-control .ui-icon {
  width: 1.25rem;
  height: 1.25rem;
  vertical-align: initial;
}

.reader-control .ui-icon--zoom {
  width: 1.35rem;
  height: 1.35rem;
}

.reader-control:hover:not(:disabled) {
  border-color: rgba(200, 168, 120, 0.45);
  background: var(--bg-hover);
  color: var(--cream);
}

.reader-control:disabled,
.reader-page-number:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.reader-control--fit {
  min-width: auto;
  padding-inline: 0.8rem;
  font-family: var(--ff-body);
  font-size: 0.9rem;
}

.reader-status {
  min-height: 3.25rem;
  padding: 0.65rem 1rem;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

.reader-page-frame {
  display: grid;
  place-items: start center;
  min-height: 65vh;
  padding: clamp(0.75rem, 3vw, 2rem);
  overflow: auto;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255, 255, 255, 0.06), transparent 65%),
    #292827;
}

.reader-page-frame--swipe-enabled {
  touch-action: pan-y;
}

#reader-canvas {
  display: block;
  height: auto;
  background: #fffdf7;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.38);
}

.reader-error {
  max-width: 34rem;
  margin: 2rem auto 3rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  text-align: center;
}

.reader-error .eyebrow {
  color: var(--gold);
}

.reader-error p {
  margin: 0.75rem 0 1.4rem;
  color: var(--text);
}

.reader-note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: right;
}

@media (max-width: 640px) {
  .reader-heading {
    margin-bottom: 1.35rem;
  }

  .reader-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 0.65rem;
    padding: 0.7rem;
  }

  .reader-toolbar--bottom {
    align-items: center;
    flex-direction: row;
  }

  .reader-toolbar__pages,
  .reader-toolbar__zoom {
    justify-content: center;
  }

  .reader-toolbar__pages {
    gap: 0.4rem;
  }

  .reader-page-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }

  .reader-page-number {
    width: 3.5rem;
  }

  .reader-page-frame {
    min-height: 52vh;
    padding: 0.5rem;
  }

  .reader-note {
    text-align: center;
  }
}