:root {
  color-scheme: dark;
  --ink: #070605;
  --ink-soft: #13100c;
  --panel: rgba(18, 14, 9, 0.86);
  --panel-line: rgba(215, 163, 75, 0.32);
  --gold: #d8a557;
  --gold-bright: #f4d18a;
  --paper: #d9bd83;
  --muted: #b8a078;
  --text: #f7ebd1;
  --shadow: rgba(0, 0, 0, 0.72);
  font-family: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 25% 8%, rgba(216, 165, 87, 0.16), transparent 28rem),
    linear-gradient(135deg, rgba(12, 9, 7, 0.96), rgba(3, 3, 3, 1) 65%),
    #050403;
}

button {
  font: inherit;
}

.comic-app {
  position: relative;
  width: min(1560px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(18px, 2.5vw, 40px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(16px, 2vw, 28px);
}

.comic-app:fullscreen {
  width: 100%;
  min-height: 100vh;
  padding: clamp(12px, 2vw, 24px);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 8%, rgba(216, 165, 87, 0.12), transparent 34rem),
    linear-gradient(135deg, #090705, #000 68%);
}

.comic-app:fullscreen,
.comic-app.is-fullscreen {
  grid-template-rows: 1fr;
}

.comic-app.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 100;
  width: 100%;
  min-height: 100vh;
  padding: clamp(12px, 2vw, 24px);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 8%, rgba(216, 165, 87, 0.12), transparent 34rem),
    linear-gradient(135deg, #090705, #000 68%);
}

.comic-app:fullscreen .reader-top,
.comic-app.is-fullscreen .reader-top,
.comic-app:fullscreen .issue-panel,
.comic-app.is-fullscreen .issue-panel {
  display: none;
}

.comic-app:fullscreen .reader-layout,
.comic-app.is-fullscreen .reader-layout {
  grid-template-columns: 1fr;
}

.comic-app:fullscreen .stage-wrap,
.comic-app.is-fullscreen .stage-wrap {
  min-height: calc(100vh - 24px);
  grid-template-columns: 64px minmax(0, 1fr) 64px;
}

.comic-app:fullscreen .book-stage,
.comic-app.is-fullscreen .book-stage {
  width: min(calc(96vh * 0.6667), calc(100vw - 180px), 980px);
  max-width: none;
}

.comic-app:fullscreen .reader-bottom,
.comic-app.is-fullscreen .reader-bottom {
  position: absolute;
  right: clamp(12px, 2vw, 24px);
  bottom: clamp(10px, 1.5vw, 18px);
  left: clamp(12px, 2vw, 24px);
  padding: 10px 12px 0;
  border-top-color: rgba(215, 163, 75, 0.18);
  background: rgba(7, 6, 5, 0.72);
  backdrop-filter: blur(10px);
}

.comic-app:fullscreen .thumb,
.comic-app.is-fullscreen .thumb {
  width: 44px;
  height: 64px;
}

.reader-top,
.reader-bottom,
.reader-layout {
  width: 100%;
}

.reader-top {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--panel-line);
}

.kicker {
  margin: 0 0 4px;
  color: var(--gold);
  font-size: clamp(0.74rem, 1.2vw, 0.9rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--gold-bright);
  font-size: clamp(2rem, 6vw, 5.8rem);
  line-height: 0.92;
  text-transform: uppercase;
  text-shadow: 0 8px 36px rgba(0, 0, 0, 0.8);
}

.issue-pill {
  min-width: 112px;
  padding: 12px 16px;
  border: 1px solid var(--panel-line);
  color: var(--ink);
  background: linear-gradient(145deg, var(--gold-bright), var(--gold));
  text-align: center;
  text-transform: uppercase;
  font-weight: 800;
  box-shadow: 0 12px 32px var(--shadow);
}

.reader-layout {
  display: grid;
  grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
  gap: clamp(16px, 2.5vw, 34px);
  align-items: center;
}

.issue-panel {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
  padding: 24px;
  border-left: 1px solid var(--panel-line);
  color: var(--muted);
  background: linear-gradient(180deg, rgba(216, 165, 87, 0.08), transparent);
}

.cover-stamp {
  display: grid;
  gap: 7px;
  padding: 16px;
  border: 1px solid var(--panel-line);
  color: var(--paper);
  text-transform: uppercase;
}

.cover-stamp span,
.page-count {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.cover-stamp strong {
  color: var(--gold-bright);
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1;
}

.issue-panel p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.55;
}

.meter {
  height: 6px;
  overflow: hidden;
  border: 1px solid rgba(244, 209, 138, 0.24);
  background: rgba(0, 0, 0, 0.35);
}

.meter span {
  display: block;
  width: 25%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  transition: width 320ms ease;
}

.stage-wrap {
  position: relative;
  min-height: min(72vh, 960px);
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) 56px;
  gap: clamp(8px, 1.4vw, 18px);
  align-items: center;
}

.book-stage {
  position: relative;
  width: min(100%, 64vh);
  max-width: 760px;
  aspect-ratio: 2 / 3;
  justify-self: center;
  perspective: 1800px;
  filter: drop-shadow(0 28px 42px rgba(0, 0, 0, 0.72));
}

.comic-page {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border: 1px solid rgba(244, 209, 138, 0.3);
  background: var(--ink-soft);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.65);
  backface-visibility: hidden;
  transform-origin: left center;
  will-change: transform, opacity;
}

.comic-page.standby {
  opacity: 0;
  pointer-events: none;
}

.book-stage.turning-next .active {
  animation: turnOutNext 700ms cubic-bezier(0.2, 0.78, 0.22, 1) forwards;
}

.book-stage.turning-next .standby {
  opacity: 1;
  animation: turnInNext 700ms cubic-bezier(0.2, 0.78, 0.22, 1) forwards;
}

.book-stage.turning-prev .active {
  transform-origin: right center;
  animation: turnOutPrev 700ms cubic-bezier(0.2, 0.78, 0.22, 1) forwards;
}

.book-stage.turning-prev .standby {
  opacity: 1;
  transform-origin: right center;
  animation: turnInPrev 700ms cubic-bezier(0.2, 0.78, 0.22, 1) forwards;
}

.page-shadow {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent 35%, rgba(0, 0, 0, 0.36));
}

.book-stage.turning-next .page-shadow,
.book-stage.turning-prev .page-shadow {
  animation: shadowPulse 700ms ease;
}

.nav-button {
  width: 52px;
  height: 72px;
  border: 1px solid var(--panel-line);
  color: var(--gold-bright);
  background: rgba(11, 8, 5, 0.86);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.nav-button span {
  display: block;
  transform: translateY(-2px);
  font-size: 3.2rem;
  line-height: 1;
}

.nav-button:hover:not(:disabled),
.nav-button:focus-visible {
  border-color: var(--gold-bright);
  background: rgba(216, 165, 87, 0.16);
  transform: translateY(-2px);
  outline: none;
}

.nav-button:disabled,
.text-button:disabled {
  opacity: 0.34;
  cursor: not-allowed;
}

.reader-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--panel-line);
}

.thumbnail-strip {
  min-width: 0;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 8px;
}

.thumb {
  width: 54px;
  height: 78px;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid rgba(244, 209, 138, 0.2);
  background: #080705;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease;
}

.thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.thumb:hover,
.thumb:focus-visible,
.thumb[aria-current="page"] {
  border-color: var(--gold-bright);
  transform: translateY(-2px);
  outline: none;
}

.reader-actions {
  display: flex;
  gap: 10px;
  flex: 0 0 auto;
}

.text-button {
  min-width: 72px;
  padding: 10px 14px;
  border: 1px solid var(--panel-line);
  color: var(--gold-bright);
  background: rgba(13, 10, 7, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.fullscreen-button {
  min-width: 126px;
}

.text-button:hover:not(:disabled),
.text-button:focus-visible {
  border-color: var(--gold-bright);
  outline: none;
}

@keyframes turnOutNext {
  0% {
    opacity: 1;
    transform: rotateY(0deg) translateZ(0);
  }
  55% {
    opacity: 0.92;
  }
  100% {
    opacity: 0;
    transform: rotateY(-76deg) translateZ(12px);
  }
}

@keyframes turnInNext {
  0% {
    transform: rotateY(72deg) translateZ(-18px);
  }
  100% {
    transform: rotateY(0deg) translateZ(0);
  }
}

@keyframes turnOutPrev {
  0% {
    opacity: 1;
    transform: rotateY(0deg) translateZ(0);
  }
  100% {
    opacity: 0;
    transform: rotateY(76deg) translateZ(12px);
  }
}

@keyframes turnInPrev {
  0% {
    transform: rotateY(-72deg) translateZ(-18px);
  }
  100% {
    transform: rotateY(0deg) translateZ(0);
  }
}

@keyframes shadowPulse {
  0%,
  100% {
    opacity: 0;
  }
  45% {
    opacity: 1;
  }
}

@media (max-width: 880px) {
  .reader-layout {
    grid-template-columns: 1fr;
  }

  .issue-panel {
    display: none;
  }

  .stage-wrap {
    min-height: auto;
    grid-template-columns: 44px minmax(0, 1fr) 44px;
  }

  .book-stage {
    width: min(100%, 68vh);
  }

  .nav-button {
    width: 42px;
    height: 64px;
  }

  .nav-button span {
    font-size: 2.7rem;
  }
}

@media (max-width: 620px) {
  .comic-app {
    padding: 14px;
    gap: 14px;
  }

  .reader-top {
    align-items: start;
    flex-direction: column;
  }

  .issue-pill {
    min-width: 96px;
    padding: 9px 12px;
  }

  .stage-wrap {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "stage stage"
      "prev next";
  }

  .book-stage {
    grid-area: stage;
    width: min(100%, 72vh);
  }

  .nav-button.previous {
    grid-area: prev;
    justify-self: stretch;
  }

  .nav-button.next {
    grid-area: next;
    justify-self: stretch;
  }

  .nav-button {
    width: 100%;
    height: 48px;
  }

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

  .reader-actions {
    justify-content: space-between;
  }

  .text-button {
    flex: 1;
  }

  .comic-app:fullscreen,
  .comic-app.is-fullscreen {
    padding: 10px;
  }

  .comic-app:fullscreen .stage-wrap,
  .comic-app.is-fullscreen .stage-wrap {
    min-height: calc(100vh - 20px);
    grid-template-columns: 1fr 1fr;
  }

  .comic-app:fullscreen .book-stage,
  .comic-app.is-fullscreen .book-stage {
    width: min(100%, calc(88vh * 0.6667));
  }

  .comic-app:fullscreen .reader-bottom,
  .comic-app.is-fullscreen .reader-bottom {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}