@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@700;900&family=Space+Grotesk:wght@400;500;700;800&family=Audiowide&display=swap');

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse at 14% 8%, rgba(37, 99, 235, 0.34), transparent 36%),
    radial-gradient(ellipse at 86% 14%, rgba(234, 179, 8, 0.16), transparent 28%),
    radial-gradient(ellipse at 54% 92%, rgba(20, 184, 166, 0.18), transparent 40%),
    #050817;
  color: #eef6ff;
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
}

.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.stars::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 13% 22%, #fff, transparent 60%),
    radial-gradient(1px 1px at 27% 78%, #cfe6ff, transparent 60%),
    radial-gradient(1.5px 1.5px at 41% 14%, #fff, transparent 60%),
    radial-gradient(1px 1px at 58% 64%, #aee0ff, transparent 60%),
    radial-gradient(1.5px 1.5px at 72% 36%, #fff, transparent 60%),
    radial-gradient(1px 1px at 84% 82%, #fef3c7, transparent 60%),
    radial-gradient(1px 1px at 92% 12%, #fff, transparent 60%),
    radial-gradient(1px 1px at 6% 56%, #aee0ff, transparent 60%);
  opacity: 0.72;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1420px, calc(100% - 36px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.topbar,
.footer-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.topbar { margin-bottom: 28px; }
.footer-actions { justify-content: center; margin-top: 34px; }

.nav-link,
.action-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #eef6ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 10px 16px;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 180ms, border-color 180ms, transform 180ms;
  white-space: nowrap;
}
.nav-link:hover,
.action-link:hover {
  background: rgba(34, 211, 238, 0.16);
  border-color: #67e8f9;
  transform: translateY(-2px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(250px, 0.56fr) 1fr;
  gap: 34px;
  align-items: center;
  margin-bottom: 22px;
}
.cover-wrap,
.panel,
.page-section {
  border: 1.5px solid rgba(165, 200, 255, 0.22);
  border-radius: 8px;
  background: rgba(8, 18, 42, 0.78);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.36);
}
.cover-wrap {
  overflow: hidden;
  max-width: 420px;
}
.cover-wrap img,
.page-card img {
  display: block;
  max-width: 100%;
  height: auto;
}
.cover-wrap img {
  width: 100%;
}
.cover-wrap img {
  max-height: min(610px, 72vh);
  object-fit: contain;
}

.eyebrow {
  color: #67e8f9;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.22em;
  margin: 0 0 10px;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  font-family: 'Audiowide', 'Orbitron', sans-serif;
  font-size: clamp(42px, 7vw, 92px);
  letter-spacing: 0.02em;
  line-height: 0.95;
  text-transform: uppercase;
}
.intro,
.chapter-copy {
  max-width: 720px;
  color: rgba(226, 238, 255, 0.78);
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.65;
  margin: 18px 0 0;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.chapter-card {
  min-height: 180px;
  padding: 18px;
}
.chapter-card h2 {
  margin: 0 0 8px;
  font-family: 'Orbitron', sans-serif;
  font-size: 20px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.chapter-card p {
  color: rgba(226, 238, 255, 0.72);
  line-height: 1.55;
  margin: 0 0 18px;
}
.chapter-card.is-locked {
  opacity: 0.56;
}
.chapter-card.is-locked .action-link {
  pointer-events: none;
}

.chapter-header {
  margin-bottom: 24px;
}
.chapter-header h1 {
  font-size: clamp(34px, 5vw, 68px);
}
.page-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.page-jump a {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #bfeaff;
  font-size: 12px;
  font-weight: 800;
  min-width: 42px;
  padding: 8px 10px;
  text-align: center;
  text-decoration: none;
}
.page-jump a:hover { background: rgba(103, 232, 249, 0.18); color: #fff; }

.comic-stack {
  display: grid;
  gap: 30px;
}
.page-section {
  scroll-margin-top: 20px;
  padding: 16px;
}
.page-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  margin-bottom: 16px;
  padding-bottom: 12px;
}
.page-heading h2 {
  margin: 0;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(18px, 2vw, 26px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.page-heading span {
  color: rgba(191, 234, 255, 0.65);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
.page-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: #071124;
}
.page-card h3 {
  margin: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
  color: #bfeaff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.18em;
  padding: 10px 12px;
  text-transform: uppercase;
}
.page-card a {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  color: inherit;
  text-decoration: none;
}
.page-card img {
  width: auto;
  max-height: min(82vh, 980px);
  object-fit: contain;
}

@media (max-width: 1100px) {
  .chapter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .shell { width: min(100% - 24px, 760px); padding-top: 18px; }
  .hero { grid-template-columns: 1fr; gap: 22px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .comparison { grid-template-columns: 1fr; }
  .page-section { padding: 12px; }
  .page-heading { align-items: flex-start; flex-direction: column; gap: 6px; }
  .page-card img { max-height: none; width: 100%; }
}
@media (max-width: 620px) {
  .chapter-grid { grid-template-columns: 1fr; }
}