:root {
  --bg: #08111f;
  --bg-soft: #101b2d;
  --bg-card: rgba(15, 28, 48, 0.76);
  --text: #f4f0e8;
  --muted: #b7c0d1;
  --muted-2: #8490a3;
  --accent: #f2b66d;
  --accent-2: #73d5ff;
  --line: rgba(255,255,255,0.12);
  --shadow: 0 24px 80px rgba(0,0,0,0.35);
  --radius: 28px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 18% 8%, rgba(115,213,255,.18), transparent 30%),
              radial-gradient(circle at 85% 0%, rgba(242,182,109,.15), transparent 30%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.page-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 85%);
  z-index: 0;
}

body > * { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
p { color: var(--muted); margin: 0 0 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 24px;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.brand img { filter: drop-shadow(0 0 18px rgba(115,213,255,.38)); }
.site-nav { display: flex; gap: 20px; align-items: center; }
.site-nav a {
  font-size: 14px;
  color: var(--muted);
  transition: color .2s ease;
}
.site-nav a:hover { color: var(--text); }
.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 22px;
  padding: 6px 10px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 92px 24px;
}

.hero {
  min-height: 86vh;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, .98fr);
  gap: 52px;
  align-items: center;
}
.eyebrow {
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 14px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(58px, 10vw, 126px);
  line-height: .86;
  letter-spacing: -.07em;
}
.hero-line {
  margin: 24px 0 14px;
  font-size: clamp(24px, 3.6vw, 44px);
  line-height: 1.08;
  color: var(--text);
  max-width: 700px;
}
.hero-text { max-width: 650px; font-size: 18px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, var(--accent), #ffd7a0); color: #251308; }
.button-ghost { border: 1px solid var(--line); color: var(--text); background: rgba(255,255,255,.05); }

.hero-visual {
  position: relative;
  height: min(620px, 72vh);
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  overflow: hidden;
  box-shadow: var(--shadow);
}
.hero-visual::before, .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
}
.hero-visual::before {
  background: radial-gradient(circle at 22% 30%, rgba(115,213,255,.26), transparent 25%),
              radial-gradient(circle at 76% 68%, rgba(242,182,109,.24), transparent 24%);
}
.hero-visual::after {
  background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: .42;
}
.rift {
  position: absolute;
  top: -10%;
  left: 50%;
  width: 4px;
  height: 120%;
  transform: rotate(10deg);
  background: linear-gradient(to bottom, transparent, #fff, var(--accent-2), #fff, transparent);
  box-shadow: 0 0 28px rgba(115,213,255,.9), 0 0 90px rgba(242,182,109,.5);
  z-index: 3;
}
.reality-card {
  position: absolute;
  width: 220px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(8,17,31,.72);
  backdrop-filter: blur(16px);
  z-index: 4;
}
.left-card { top: 16%; left: 10%; }
.right-card { bottom: 14%; right: 8%; }
.reality-card span, .reality-card em { display: block; color: var(--muted-2); font-size: 13px; font-style: normal; }
.reality-card strong { display: block; margin: 8px 0; font-size: 22px; line-height: 1.1; }

.intro-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 20px;
}
.intro-strip article, .glass-card, .character-card, .quote-card, .contact-card, .publisher-box {
  border: 1px solid var(--line);
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 56px rgba(0,0,0,.22);
}
.intro-strip article {
  border-radius: 24px;
  padding: 26px;
}
.intro-strip span { color: var(--accent); font-weight: 900; }
h2 { margin: 0 0 18px; font-size: clamp(30px, 4.6vw, 58px); line-height: 1; letter-spacing: -.04em; }
h3 { margin: 0 0 10px; font-size: 22px; line-height: 1.18; }
.intro-strip h2 { font-size: 24px; letter-spacing: -.02em; margin-top: 10px; }
.section-heading { max-width: 840px; margin-bottom: 32px; }
.section-heading.narrow { max-width: 720px; margin-inline: auto; text-align: center; }
.two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.two-columns p { font-size: 18px; }

.series-section { padding-top: 70px; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.timeline-item {
  padding: 24px;
  border-top: 2px solid rgba(115,213,255,.55);
  background: linear-gradient(180deg, rgba(115,213,255,.1), rgba(255,255,255,.03));
  border-radius: 0 0 22px 22px;
}
.timeline-item span { color: var(--accent); font-size: 12px; text-transform: uppercase; letter-spacing: .14em; font-weight: 900; }

.book-section {
  display: grid;
  grid-template-columns: minmax(280px, 390px) 1fr;
  gap: 54px;
  align-items: center;
}
.book-cover {
  position: relative;
  min-height: 560px;
  border-radius: 22px;
  background: linear-gradient(135deg, #101c2e, #070b12 48%, #261809);
  border: 1px solid rgba(255,255,255,.22);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.book-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .55;
}
.cover-top {
  position: absolute;
  top: 28px;
  left: 28px;
  right: 28px;
  z-index: 2;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--accent-2);
  font-weight: 900;
}
.cover-rift {
  position: absolute;
  inset: -10% auto -10% 50%;
  width: 5px;
  transform: rotate(14deg);
  background: #fff;
  box-shadow: 0 0 34px rgba(255,255,255,.9), 0 0 100px rgba(115,213,255,.72), 0 0 160px rgba(242,182,109,.52);
}
.cover-bottom {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 30px;
  z-index: 2;
}
.cover-bottom span, .cover-bottom p { color: var(--muted); }
.cover-bottom h2 { font-size: 54px; line-height: .9; margin: 12px 0; }
.book-copy .lead { color: var(--text); font-size: 21px; }
.book-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.book-tags span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 14px;
}

.world-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.glass-card { border-radius: 24px; padding: 26px; }
.wide-card { grid-column: span 3; }

.cards-three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.character-card { border-radius: 24px; padding: 28px; }
.avatar-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(115,213,255,.18), rgba(242,182,109,.2));
  color: var(--text);
  font-weight: 900;
  margin-bottom: 18px;
  border: 1px solid var(--line);
}

.science-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: stretch; }
.science-list { display: grid; gap: 14px; }
.science-list div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}
.science-list span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(115,213,255,.12);
  color: var(--accent-2);
  font-weight: 900;
}
.science-list p { margin: 0; color: var(--text); }
.quote-card {
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  padding: 34px;
}
blockquote { margin: 0; font-size: clamp(26px, 3vw, 40px); line-height: 1.08; letter-spacing: -.04em; }

.publisher-box {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 36px;
  border-radius: var(--radius);
  padding: 42px;
}
.publisher-list { margin: 0; padding-left: 20px; color: var(--muted); }
.publisher-list li { margin: 10px 0; }
.contact-section { padding-top: 40px; }
.contact-card {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  border-radius: var(--radius);
  padding: 42px;
}
.small-note { font-size: 13px; color: var(--muted-2); margin-top: 16px; }
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 34px 24px 50px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted-2);
  border-top: 1px solid var(--line);
}
.site-footer p { margin: 0; color: var(--muted-2); }
.site-footer a { color: var(--muted); }

@media (max-width: 920px) {
  .site-nav {
    position: absolute;
    top: 70px;
    right: 24px;
    left: 24px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(8,17,31,.96);
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .hero, .book-section, .science-layout, .publisher-box { grid-template-columns: 1fr; }
  .intro-strip, .timeline, .world-grid, .cards-three { grid-template-columns: 1fr; }
  .wide-card { grid-column: span 1; }
  .two-columns { grid-template-columns: 1fr; }
  .hero-visual { min-height: 380px; }
  .section { padding: 70px 20px; }
  .book-cover { max-width: 420px; width: 100%; margin: 0 auto; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: 58px; }
  .hero-line { font-size: 28px; }
  .book-cover { min-height: 500px; }
  .cover-bottom h2 { font-size: 44px; }
  .site-footer { flex-direction: column; }
}