:root {
  --pink: #ff64b6;
  --blue: #4aa3ff;
  --purple: #8b5cf6;
  --mint: #2ee6a6;
  --sun: #ffd56a;
  --text: #0f172a;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  min-height: 100svh;
  overflow-x: hidden;
  background:
    radial-gradient(520px 420px at 18% 20%, rgba(74, 163, 255, 0.12), transparent 65%),
    radial-gradient(520px 420px at 82% 18%, rgba(255, 100, 182, 0.1), transparent 65%),
    radial-gradient(640px 520px at 50% 80%, rgba(139, 92, 246, 0.08), transparent 70%),
    #ffffff;
}

body.social-panel-open {
  overflow: hidden;
}

body.viewer-open {
  overflow: hidden;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.banner-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
  background: #ffeb3b;
  padding: clamp(0.3rem, 1vw, 0.5rem) 0;
  box-shadow: 0 4px 24px rgba(255, 235, 59, 0.35);
}

.banner-wrap picture {
  display: block;
}

.banner-img {
  display: block;
  width: min(560px, 88vw);
  height: auto;
  margin: 0 auto;
}

.main {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 4vw, 2rem) 3rem;
}

.hero {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.brand {
  margin: 0 0 0.75rem;
  font-size: clamp(0.75rem, 2vw, 0.9rem);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(15, 23, 42, 0.45);
  animation: fadeUp 0.8s ease both;
}

.title {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35em 0.5em;
  line-height: 1.05;
}

.title-word {
  display: inline-block;
  font-size: clamp(2rem, 7vw, 3.6rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(28px) scale(0.92);
  animation: titleIn 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: calc(0.15s + var(--i) * 0.12s);
  background: linear-gradient(135deg, var(--text) 0%, #334155 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.title-word.accent {
  background: linear-gradient(135deg, var(--blue) 0%, var(--pink) 55%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  animation-name: titleInAccent;
}

@keyframes titleIn {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes titleInAccent {
  0% {
    opacity: 0;
    transform: translateY(28px) scale(0.92);
    filter: blur(4px);
  }
  70% {
    filter: blur(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.subtitle {
  margin: 1rem 0 0;
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  color: rgba(15, 23, 42, 0.55);
  animation: fadeUp 0.9s ease 0.45s both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chapters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
}

.chapter-card {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2rem);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow);
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  animation: cardIn 0.85s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--delay);
  backdrop-filter: blur(8px);
  transition: transform 0.25s, box-shadow 0.25s;
}

.chapter-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(74, 163, 255, 0.18);
}

.chapter-card--wife:hover {
  box-shadow: 0 20px 50px rgba(255, 100, 182, 0.2);
}

@keyframes cardIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chapter-glow {
  position: absolute;
  top: -40%;
  right: -20%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 163, 255, 0.25), transparent 70%);
  pointer-events: none;
}

.chapter-card--wife .chapter-glow {
  background: radial-gradient(circle, rgba(255, 100, 182, 0.28), transparent 70%);
  left: -20%;
  right: auto;
}

.chapter-num {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.5rem;
}

.chapter-card--wife .chapter-num {
  color: var(--pink);
}

.chapter-title {
  margin: 0 0 0.35rem;
  font-size: clamp(1.15rem, 3.5vw, 1.45rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.chapter-meta {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: rgba(15, 23, 42, 0.5);
}

.open-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #3b82f6);
  box-shadow: 0 8px 24px rgba(74, 163, 255, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.open-btn--pink {
  background: linear-gradient(135deg, var(--pink), #ec4899);
  box-shadow: 0 8px 24px rgba(255, 100, 182, 0.35);
}

.open-btn:hover {
  transform: scale(1.04);
}

.open-btn:active {
  transform: scale(0.98);
}

.open-arrow {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  transition: transform 0.2s;
}

.open-btn:hover .open-arrow {
  transform: translateX(4px);
}

.footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(15, 23, 42, 0.45);
  animation: fadeUp 1s ease 0.6s both;
}

/* Viewer */
.viewer {
  position: fixed;
  inset: 0;
  z-index: 100;
  touch-action: none;
  background: #ffffff;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
}

.viewer.hidden {
  display: none;
}

.viewer-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  padding-top: calc(0.75rem + env(safe-area-inset-top));
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

.ghost-btn {
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.ghost-btn__icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.ghost-btn:hover {
  background: #f8fafc;
}

.viewer-title {
  text-align: center;
  font-weight: 800;
  font-size: clamp(0.8rem, 2.5vw, 1rem);
  letter-spacing: 0.03em;
}

.viewer-page {
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(15, 23, 42, 0.55);
  white-space: nowrap;
}

.stage {
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: #fff;
  position: relative;
}

.zoom-viewport {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: zoom-in;
  touch-action: none;
  -webkit-touch-callout: none;
  transform: translateZ(0);
}

.zoom-touch-layer {
  position: absolute;
  inset: 0;
  z-index: 25;
  touch-action: none;
  background: transparent;
  pointer-events: auto;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.zoom-content {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  transform-origin: center center;
  will-change: transform;
  touch-action: none;
  backface-visibility: hidden;
  contain: layout style paint;
}

.zoom-viewport.is-zoomed {
  cursor: grab;
}

.zoom-viewport.is-panning {
  cursor: grabbing;
}

.loader {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: rgba(15, 23, 42, 0.55);
  font-size: 0.9rem;
  font-weight: 600;
  pointer-events: none;
}

.loader-ring {
  width: 42px;
  height: 42px;
  border: 3px solid rgba(74, 163, 255, 0.2);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.viewer[data-chapter="2"] .loader-ring {
  border-color: rgba(255, 100, 182, 0.2);
  border-top-color: var(--pink);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.comic-img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.1);
  user-select: none;
  -webkit-user-drag: none;
  touch-action: none;
  -webkit-touch-callout: none;
  opacity: 1;
  transition: opacity 0.2s ease;
}

.comic-img.is-loading {
  opacity: 0;
  position: absolute;
  pointer-events: none;
}

.missing {
  color: #64748b;
  text-align: center;
  padding: 1rem;
}

.missing.hidden,
.hidden {
  display: none !important;
}

.viewer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem calc(0.65rem + env(safe-area-inset-bottom));
}

.nav-btn {
  width: 52px;
  height: 52px;
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  box-shadow: 0 6px 20px rgba(74, 163, 255, 0.3);
  transition: transform 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.nav-btn__icon {
  width: 1.35rem;
  height: 1.35rem;
  fill: currentColor;
  display: block;
}

.viewer[data-chapter="2"] .nav-btn {
  background: linear-gradient(135deg, var(--pink), var(--purple));
  box-shadow: 0 6px 20px rgba(255, 100, 182, 0.3);
}

.nav-btn:hover {
  transform: scale(1.08);
}

.nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

.audio-fab {
  position: static;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #3b82f6);
  box-shadow: 0 4px 16px rgba(74, 163, 255, 0.45);
  transition: transform 0.2s, box-shadow 0.2s;
  padding: 0;
}

.audio-fab__icon {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
  display: block;
}

.viewer[data-chapter="2"] .audio-fab {
  background: linear-gradient(135deg, var(--pink), #ec4899);
  box-shadow: 0 4px 16px rgba(255, 100, 182, 0.45);
}

.audio-fab:hover {
  transform: scale(1.08);
}

.audio-fab.is-playing {
  box-shadow: 0 0 0 3px rgba(74, 163, 255, 0.25);
}

.viewer[data-chapter="2"] .audio-fab.is-playing {
  box-shadow: 0 0 0 3px rgba(255, 100, 182, 0.25);
}

.audio-fab.is-loading {
  opacity: 0.65;
}

.audio-fab.is-error {
  background: linear-gradient(135deg, #ef4444, #dc2626) !important;
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.45) !important;
}

.viewer[data-chapter="2"] .audio-fab.is-playing {
  box-shadow: 0 0 0 3px rgba(255, 100, 182, 0.25);
}

@media (max-width: 600px) {
  .viewer-top {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 0.35rem 0.65rem;
    padding-top: calc(0.35rem + env(safe-area-inset-top));
    gap: 0.15rem;
  }

  .viewer-page {
    justify-self: center;
    font-size: 0.78rem;
  }

  .ghost-btn {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
  }

  .viewer-title {
    font-size: 0.78rem;
  }

  .stage {
    touch-action: none;
  }

  .zoom-viewport {
    touch-action: none;
    cursor: default;
  }

  .viewer-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    column-gap: 2rem;
    row-gap: 0.5rem;
    justify-items: center;
    padding: 0.35rem 1rem calc(0.65rem + env(safe-area-inset-bottom));
  }

  #prevPage {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
  }

  #nextPage {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  #audioFab {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .nav-btn {
    width: 46px;
    height: 46px;
    font-size: 1.05rem;
  }

  .audio-fab {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

.zoom-hint {
  display: none !important;
}

.social-menu-btn {
  position: fixed;
  top: max(0.75rem, env(safe-area-inset-top));
  right: max(0.75rem, env(safe-area-inset-right));
  left: auto;
  z-index: 90;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: #334155;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.14);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.social-menu-btn svg {
  width: 22px;
  height: 22px;
}

.social-menu-btn:hover,
.social-menu-btn[aria-expanded="true"] {
  background: #fff;
  transform: scale(1.04);
  box-shadow: 0 6px 22px rgba(15, 23, 42, 0.18);
}

.social-panel {
  position: fixed;
  inset: 0;
  z-index: 95;
}

.social-panel.hidden {
  display: none;
}

.social-panel__backdrop {
  position: absolute;
  inset: 0;
  border: none;
  background: rgba(15, 23, 42, 0.4);
  cursor: pointer;
}

.social-drawer {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(300px, 86vw);
  background: #fff;
  box-shadow: 8px 0 32px rgba(15, 23, 42, 0.18);
  display: flex;
  flex-direction: column;
  padding: 0;
  animation: socialDrawerIn 0.24s ease;
}

@keyframes socialDrawerIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

.social-drawer__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1rem 0.85rem;
  border-bottom: 2px solid #ffeb3b;
  background: linear-gradient(180deg, #fffef5 0%, #fff 100%);
}

.social-drawer__title {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.35;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0f172a;
  max-width: 13rem;
}

.social-drawer__close {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.08);
  color: #0f172a;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.social-drawer__close:hover {
  background: rgba(15, 23, 42, 0.14);
}

.social-table {
  width: 100%;
  border-collapse: collapse;
  flex: 1;
}

.social-table tr {
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.social-table tr:last-child {
  border-bottom: none;
}

.social-table td {
  padding: 0.85rem 1rem;
  vertical-align: middle;
}

.social-table__logo {
  width: 56px;
  text-align: center;
}

.social-table__logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: inline-block;
}

.social-table__name a {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  color: #0f172a;
  text-decoration: none;
}

.social-table__name a:hover {
  color: var(--blue);
}

.social-table tr:active,
.social-table tr:hover {
  background: #f8fafc;
}

.viewer:not(.hidden) ~ .social-menu-btn {
  opacity: 0;
  pointer-events: none;
}