@font-face {
  font-family: "Instrument Sans";
  src: url("assets/fonts/InstrumentSans-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("assets/fonts/InstrumentSans-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Big Shoulders";
  src: url("assets/fonts/BigShoulders-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/IBMPlexMono-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  --bg: #f3efe7;
  --bg-soft: rgba(255, 255, 255, 0.68);
  --paper: rgba(255, 252, 246, 0.84);
  --ink: #121212;
  --ink-soft: #3f3a36;
  --line: rgba(17, 17, 17, 0.12);
  --line-strong: rgba(17, 17, 17, 0.3);
  --accent: #a25b2e;
  --accent-soft: rgba(162, 91, 46, 0.14);
  --teal: #4c6f72;
  --teal-soft: rgba(76, 111, 114, 0.16);
  --shadow: 0 24px 60px rgba(33, 27, 21, 0.12);
  --max-width: 1240px;
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  font-family: "Instrument Sans", "Hiragino Sans GB", sans-serif;
  background:
    radial-gradient(circle at 12% 14%, rgba(162, 91, 46, 0.11), transparent 28%),
    radial-gradient(circle at 88% 20%, rgba(76, 111, 114, 0.12), transparent 26%),
    linear-gradient(180deg, #f6f1e7 0%, #ece4d7 44%, #f3efe7 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background-image:
    linear-gradient(rgba(17, 17, 17, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 17, 17, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.48), transparent 88%);
}

body::after {
  background:
    radial-gradient(circle at 24% 34%, rgba(255, 255, 255, 0.44) 0 1px, transparent 1px),
    radial-gradient(circle at 80% 16%, rgba(17, 17, 17, 0.1) 0 1.1px, transparent 1.1px),
    radial-gradient(circle at 84% 76%, rgba(17, 17, 17, 0.08) 0 1px, transparent 1px),
    radial-gradient(circle at 14% 82%, rgba(255, 255, 255, 0.56) 0 1px, transparent 1px);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
a,
summary {
  transition:
    transform 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    border-color 160ms ease,
    opacity 160ms ease;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  padding: 0.75rem 1rem;
  background: #fff;
  color: #000;
  border-radius: 999px;
}

.skip-link:focus {
  top: 1rem;
}

.page-shell {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 3rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 0 1.15rem;
}

.topbar.is-scrolled {
  backdrop-filter: blur(18px);
}

.brand-link {
  display: inline-flex;
  max-width: 21rem;
}

.brand-wordmark {
  width: 100%;
  height: auto;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem;
}

.nav a {
  text-decoration: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.78rem 1rem;
  background: rgba(255, 255, 255, 0.42);
}

.nav a:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.78);
}

.section {
  margin-top: 4.8rem;
}

.panel {
  position: relative;
  background: linear-gradient(180deg, var(--paper), rgba(247, 241, 232, 0.96));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.35), transparent 36%),
    linear-gradient(315deg, rgba(162, 91, 46, 0.03), transparent 38%);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 1.6rem;
  align-items: start;
}

.hero-copy,
.signal-panel,
.version-card,
.motif-card,
.timeline-strip,
.cast-column,
.poster-card,
.source-grid > .panel,
.faq-list details {
  backdrop-filter: blur(4px);
}

.hero-copy {
  padding: 2.8rem;
  min-height: 38rem;
}

.hero-copy::before {
  content: "";
  position: absolute;
  right: -7rem;
  top: -8rem;
  width: 20rem;
  height: 20rem;
  border-radius: 50%;
  border: 1px solid rgba(76, 111, 114, 0.2);
}

.hero-copy h1,
.section-heading h2,
.signal-panel h2,
.version-card h3,
.motif-card h3,
.cast-column h3,
.source-grid h2,
.faq-list summary {
  margin: 0;
  color: var(--ink);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Times New Roman", serif;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-copy h1 {
  max-width: 7ch;
  font-size: clamp(3.4rem, 8vw, 6.4rem);
  line-height: 0.95;
}

.section-heading h2,
.signal-panel h2,
.source-grid h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.08;
}

.version-card h3,
.motif-card h3,
.cast-column h3 {
  font-size: 1.5rem;
}

.eyebrow,
.version-tag,
.motif-index,
.timeline-year {
  margin: 0;
  color: var(--accent);
  font-family: "Big Shoulders", "Instrument Sans", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

p,
dd,
li {
  color: var(--ink-soft);
  line-height: 1.7;
}

.hero-lead {
  margin-top: 1.25rem;
  max-width: 34rem;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.9rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid var(--line-strong);
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--ink);
  color: #fff;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.68);
}

.disclaimer {
  margin-top: 1.4rem;
  max-width: 38rem;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 2.1rem;
}

.stat-card {
  padding: 1rem 1rem 1.1rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.stat-card dt {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-card dd {
  margin: 0.5rem 0 0;
  color: var(--ink);
  font-size: 0.96rem;
}

.hero-side {
  display: grid;
  gap: 1.2rem;
}

.signal-panel {
  padding: 2rem 2rem 1.8rem;
}

.signal-list {
  margin: 1.2rem 0 0;
  padding-left: 1.25rem;
}

.signal-list li + li {
  margin-top: 0.45rem;
}

.poster-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1rem;
  align-items: start;
}

.poster-card {
  padding: 0.85rem;
}

.poster-card img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  object-fit: cover;
}

.poster-card-movie {
  transform: rotate(-2deg);
}

.poster-card-drama {
  transform: rotate(1.6deg);
}

.poster-card figcaption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.75rem;
  padding: 0 0.25rem 0.2rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.77rem;
  color: var(--ink-soft);
}

.poster-card figcaption a {
  text-decoration-thickness: 1px;
}

.section-heading {
  display: grid;
  gap: 0.9rem;
  max-width: 48rem;
  margin-bottom: 1.5rem;
}

.compare-grid,
.motif-grid,
.cast-grid,
.source-grid {
  display: grid;
  gap: 1rem;
}

.compare-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.version-card {
  padding: 1.8rem;
}

.version-header {
  display: grid;
  gap: 0.55rem;
}

.version-copy {
  margin-top: 1.1rem;
}

.meta-list {
  display: grid;
  gap: 0.9rem;
  margin: 1.4rem 0 0;
}

.meta-list div {
  display: grid;
  gap: 0.2rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.meta-list dt {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.meta-list dd {
  margin: 0;
  color: var(--ink);
}

.version-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.45rem;
}

.version-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 2.8rem;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: 999px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.58);
}

.version-actions a:hover {
  background: rgba(255, 255, 255, 0.92);
}

.section-timeline .timeline-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 1.25rem;
  margin-top: 1rem;
}

.timeline-item {
  padding: 1rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.timeline-item p {
  margin: 0.65rem 0 0;
}

.motif-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.motif-card {
  padding: 1.65rem;
  min-height: 15rem;
}

.motif-card h3 {
  margin-top: 0.7rem;
}

.cast-grid,
.source-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cast-column,
.source-grid > .panel {
  padding: 1.8rem;
}

.character-card {
  padding-top: 1rem;
  margin-top: 1rem;
  border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.character-card strong,
.character-card span {
  display: block;
}

.character-card strong {
  font-size: 1.05rem;
  color: var(--ink);
}

.character-card span {
  margin-top: 0.2rem;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
}

.character-card p {
  margin: 0.65rem 0 0;
}

.faq-list {
  display: grid;
  gap: 0.85rem;
}

.faq-list details {
  padding: 1.2rem 1.25rem 1.3rem;
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding-right: 2rem;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 1.25rem;
  top: 1rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.2rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin: 0.9rem 0 0;
  max-width: 70ch;
}

.source-list {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
}

.source-list li + li {
  margin-top: 0.75rem;
}

.policy-note {
  margin-top: 1rem;
  padding-left: 1rem;
  border-left: 2px solid var(--teal);
}

.footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  margin-top: 4rem;
  padding: 1.25rem 0 0.5rem;
  border-top: 1px solid rgba(17, 17, 17, 0.12);
}

.footer img {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 1rem;
}

.footer p {
  margin: 0;
}

.footer-year {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal.is-visible,
  button,
  a,
  summary {
    transition: none;
    transform: none;
    opacity: 1;
  }
}

@media (max-width: 1080px) {
  .hero,
  .compare-grid,
  .motif-grid,
  .cast-grid,
  .source-grid,
  .section-timeline .timeline-strip {
    grid-template-columns: 1fr;
  }

  .poster-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-copy {
    min-height: auto;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(var(--max-width), calc(100% - 1rem));
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .brand-link {
    max-width: 16rem;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-copy,
  .signal-panel,
  .version-card,
  .motif-card,
  .cast-column,
  .source-grid > .panel {
    padding: 1.35rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .poster-grid {
    grid-template-columns: 1fr;
  }

  .poster-card-movie,
  .poster-card-drama {
    transform: none;
  }

  .footer {
    grid-template-columns: 1fr;
    justify-items: start;
  }
}