.immersive-reader-launch {
  display: inline-flex;
  align-items: center;
  gap: .72rem;
  min-height: 2.9rem;
  margin: 1.1rem auto 0;
  padding: .72rem 1.05rem;
  color: var(--atelier-paper, #f6f0e4);
  font: 650 .72rem/1 var(--atelier-sans, "Avenir Next", sans-serif);
  letter-spacing: .13em;
  text-transform: uppercase;
  background: var(--atelier-ink, #26221c);
  border: 1px solid color-mix(in oklab, var(--atelier-gold, #9a7a45) 72%, transparent);
  cursor: pointer;
}

.immersive-reader-launch::after {
  content: "\2192";
  color: var(--atelier-gold, #9a7a45);
  font-size: 1rem;
  transition: transform 260ms cubic-bezier(.16, 1, .3, 1);
}

.immersive-reader-launch[hidden] { display: none !important; }

.immersive-reader-launch:hover::after,
.immersive-reader-launch:focus-visible::after { transform: translateX(.26rem); }

.immersive-reader-launch:focus-visible,
.immersive-reader button:focus-visible {
  outline: 2px solid var(--atelier-gold, #9a7a45);
  outline-offset: 4px;
}

.immersive-reader[hidden] { display: none !important; }

.immersive-reader {
  --reader-ink: var(--atelier-ink, #241f19);
  --reader-paper: var(--atelier-paper, #f5efe4);
  --reader-gold: var(--atelier-gold, #987643);
  position: relative;
  width: min(100%, 86rem);
  margin: clamp(1.5rem, 4vw, 3.5rem) auto 0;
  color: var(--reader-paper);
  background:
    radial-gradient(circle at 50% 32%, rgba(255, 255, 255, .055), transparent 46%),
    linear-gradient(140deg, #15120f, #252019 58%, #100e0c);
  overflow: hidden;
  isolation: isolate;
}

.immersive-reader::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .28;
  background-image: repeating-linear-gradient(92deg, transparent 0 18px, rgba(255,255,255,.012) 19px 20px);
  mix-blend-mode: screen;
}

.immersive-reader__topbar,
.immersive-reader__controls {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
}

.immersive-reader__topbar {
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 3vw, 2.25rem);
  border-bottom: 1px solid rgba(217, 190, 139, .24);
}

.immersive-reader__eyebrow,
.immersive-reader__status {
  margin: 0;
  font: 600 .67rem/1.35 var(--atelier-sans, "Avenir Next", sans-serif);
  letter-spacing: .16em;
  text-transform: uppercase;
}

.immersive-reader__eyebrow { color: color-mix(in oklab, var(--reader-gold) 80%, white); }
.immersive-reader__status { color: rgba(246, 240, 228, .72); text-align: center; }

.immersive-reader__close,
.immersive-reader__control,
.immersive-reader__read {
  min-width: 2.75rem;
  min-height: 2.75rem;
  color: inherit;
  font: 650 .72rem/1 var(--atelier-sans, "Avenir Next", sans-serif);
  letter-spacing: .09em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid rgba(217, 190, 139, .38);
  cursor: pointer;
}

.immersive-reader__close { padding-inline: 1rem; }
.immersive-reader__control { font-size: 1.35rem; }
.immersive-reader__read { min-width: 8.2rem; padding-inline: 1rem; }

.immersive-reader__close:hover,
.immersive-reader__control:hover,
.immersive-reader__read:hover {
  color: var(--reader-ink);
  background: var(--reader-paper);
  border-color: var(--reader-paper);
}

.immersive-reader__control:disabled {
  opacity: .28;
  cursor: default;
  color: inherit;
  background: transparent;
}

.immersive-reader__jump {
  display: grid;
  gap: .28rem;
  min-width: min(34vw, 22rem);
}

.immersive-reader__jump span {
  color: rgba(246, 240, 228, .58);
  font: 600 .58rem/1 var(--atelier-sans, "Avenir Next", sans-serif);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.immersive-reader__jump select {
  width: 100%;
  min-height: 2.2rem;
  padding: .35rem 2rem .35rem .65rem;
  color: var(--reader-paper);
  font: 500 .76rem/1.2 var(--atelier-sans, "Avenir Next", sans-serif);
  background: #1b1713;
  border: 1px solid rgba(217, 190, 139, .32);
}

.immersive-reader__jump select:focus-visible {
  outline: 2px solid var(--reader-gold);
  outline-offset: 3px;
}

.immersive-reader__viewport {
  position: relative;
  height: clamp(18rem, 52svh, 32.5rem);
  min-height: 18rem;
  touch-action: pan-y;
  cursor: grab;
  user-select: none;
}

.immersive-reader__viewport.is-dragging { cursor: grabbing; }

.immersive-reader__canvas,
.immersive-reader__static {
  display: block;
  width: 100%;
  height: 100%;
}

.immersive-reader__canvas { outline: none; }

.immersive-reader__static {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: min(88%, 64rem);
  height: calc(100% - 3rem);
  margin: 1.5rem auto;
}

.immersive-reader__static img,
.immersive-reader__static-placeholder {
  width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
  background: #fff;
}

.immersive-reader__static-placeholder {
  display: grid;
  place-items: center;
  color: #61594e;
  font: italic 1rem/1.4 var(--atelier-serif, Georgia, serif);
}

.immersive-reader__controls {
  justify-content: center;
  gap: .85rem;
  padding: .85rem clamp(1rem, 3vw, 2.25rem) 1.15rem;
  border-top: 1px solid rgba(217, 190, 139, .24);
}

.immersive-reader__hint {
  position: absolute;
  z-index: 4;
  right: 1rem;
  bottom: 1rem;
  margin: 0;
  color: rgba(246, 240, 228, .62);
  font: 500 .65rem/1.35 var(--atelier-sans, "Avenir Next", sans-serif);
  letter-spacing: .08em;
  text-transform: uppercase;
  pointer-events: none;
}

.immersive-reader__reading[hidden] { display: none !important; }

.immersive-reader__reading {
  position: absolute;
  z-index: 10;
  inset: clamp(3.25rem, 6vw, 4.8rem) clamp(.75rem, 4vw, 3rem) clamp(4.8rem, 8vw, 6.2rem);
  display: grid;
  place-items: center;
  background: rgba(13, 11, 9, .84);
}

.immersive-reader__reading-shell {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 58rem);
  height: 100%;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.immersive-reader__reading img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
}

.immersive-reader__reading-close {
  position: absolute;
  top: .7rem;
  right: .7rem;
  z-index: 2;
  min-height: 2.75rem;
  padding: .65rem .9rem;
  color: #f7f1e7;
  font: 650 .7rem/1 var(--atelier-sans, "Avenir Next", sans-serif);
  letter-spacing: .1em;
  text-transform: uppercase;
  background: rgba(22, 18, 14, .9);
  border: 1px solid rgba(217, 190, 139, .55);
  cursor: pointer;
}

@media (max-width: 720px) {
  .immersive-reader__viewport {
    height: min(46svh, 25rem);
    min-height: 14rem;
  }
  .immersive-reader__topbar { align-items: flex-start; }
  .immersive-reader__status { max-width: 52%; }
  .immersive-reader__close { min-width: 2.75rem; width: 2.75rem; padding: 0; font-size: 0; }
  .immersive-reader__close::before { content: "\00d7"; font-size: 1.35rem; }
  .immersive-reader__read { min-width: 7rem; font-size: .65rem; }
  .immersive-reader__controls { flex-wrap: wrap; gap: .55rem; }
  .immersive-reader__jump { order: 4; width: 100%; min-width: 100%; }
  .immersive-reader__hint { display: none; }
  .immersive-reader__reading { inset: 3.8rem .5rem 5.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  .immersive-reader-launch::after { transition: none; }
  .immersive-reader__viewport { cursor: default; }
}