:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --panel-2: #182235;
  --text: #e8edf7;
  --muted: #a8b3c7;
  --line: #26324a;
  --accent: #7cc4ff;
  --accent-2: #cfe8ff;
  --maxw: 1120px;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(124, 196, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #0a101c 0%, #0d1524 100%);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-2);
}

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

.container {
  width: min(100% - 40px, var(--maxw));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(10, 16, 28, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.nav a {
  color: var(--muted);
  font-size: 0.96rem;
}

.nav a:hover {
  color: var(--text);
}

.hero {
  padding: 92px 0 54px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: stretch;
}

.hero-card,
.panel,
.card {
  background: linear-gradient(180deg, rgba(24, 34, 53, 0.96), rgba(18, 26, 43, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 40px;
}

.hero-kicker {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin-bottom: 14px;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  line-height: 1.06;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 2.4vw, 2.2rem);
  line-height: 1.15;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.16rem;
}

.lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 62ch;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 600;
  transition: 0.2s ease;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--accent);
  color: #08111c;
}

.button.primary:hover {
  background: var(--accent-2);
  color: #08111c;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.12);
}

.button.secondary:hover {
  border-color: rgba(124, 196, 255, 0.55);
  color: var(--accent-2);
}

.info-stack {
  display: grid;
  gap: 18px;
}

.info-card {
  padding: 24px;
}

.info-card p,
.card p,
.panel p {
  margin: 0;
  color: var(--muted);
}

.section {
  padding: 22px 0 34px;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 22px;
}

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

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

.card,
.panel {
  padding: 26px;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
}

.feature-book {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 24px;
  align-items: start;
}

.book-cover {
  width: 100%;
  min-height: 250px;
  border-radius: 14px;
  background: linear-gradient(160deg, #20304c, #0f1727);
  border: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d7e9ff;
  text-align: center;
  padding: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.journey-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.journey-step {
  padding: 22px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin-bottom: 12px;
  background: rgba(124, 196, 255, 0.14);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-map-panel {
  overflow: hidden;
}

.timeline-shell {
  display: grid;
  gap: 18px;
}

.timeline-now {
  position: sticky;
  top: 92px;
  z-index: 2;
}

.timeline-scroll {
  position: relative;
  max-height: 500px;
  overflow-y: auto;
  padding-left: 28px;
  padding-right: 8px;
}

.timeline-scroll::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(124, 196, 255, 0.7), rgba(124, 196, 255, 0.1));
}

.timeline-item {
  position: relative;
  margin-bottom: 18px;
  padding: 20px 20px 20px 22px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 26px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(124, 196, 255, 0.14);
}

.timeline-date {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.site-footer {
  padding: 38px 0 60px;
  color: var(--muted);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 24px;
}

.small {
  font-size: 0.92rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-2,
  .grid-3,
  .feature-book,
  .journey-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 72px;
  }

  .hero-card,
  .card,
  .panel,
  .info-card {
    padding: 24px;
  }

  .timeline-now {
    position: static;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 24px, var(--maxw));
  }

  .nav-wrap {
    align-items: flex-start;
    padding: 14px 0;
    flex-direction: column;
  }

  .nav {
    gap: 12px 16px;
  }
}