:root {
  color-scheme: dark;
  --bg: #070909;
  --panel: #101515;
  --panel-2: #171d1c;
  --line: rgba(255, 255, 255, 0.13);
  --text: #f2f5f2;
  --muted: #9ca8a5;
  --teal: #63f3df;
  --gold: #d49b37;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at 70% 0%, rgba(99, 243, 223, 0.12), transparent 36%), var(--bg);
  color: var(--text);
  font-family: "Inter Tight", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; }
.guide-nav {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px clamp(20px, 5vw, 72px);
  background: rgba(7, 9, 9, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand {
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 800;
}
.nav-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.nav-actions a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.nav-actions a:hover { color: var(--teal); }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  padding: clamp(56px, 8vw, 112px) clamp(20px, 5vw, 72px) 36px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  gap: 10px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
h1 {
  margin: 18px 0 20px;
  font-size: clamp(48px, 9vw, 132px);
  line-height: 0.86;
  letter-spacing: 0;
}
.guide-magnetar h1 {
  font-size: 96px;
}
.lede {
  max-width: 720px;
  margin: 0;
  color: #d7dedb;
  font-size: clamp(18px, 2.2vw, 28px);
  line-height: 1.22;
  font-weight: 650;
}
.hero img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.45);
}
.meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 36px clamp(20px, 5vw, 72px);
  border: 1px solid var(--line);
  background: var(--line);
}
.meta div {
  min-height: 112px;
  padding: 20px;
  background: rgba(16, 21, 21, 0.92);
}
.meta span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.meta strong {
  display: block;
  margin-top: 12px;
  font-size: 24px;
}
.content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 24px clamp(20px, 5vw, 72px) 80px;
}
.block {
  padding: clamp(22px, 3vw, 34px);
  background: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.018));
  border: 1px solid var(--line);
  border-radius: 8px;
}
.block--wide { grid-column: 1 / -1; }
h2 {
  margin: 0 0 18px;
  font-size: clamp(26px, 4vw, 48px);
  line-height: 0.95;
  letter-spacing: 0;
}
h3 {
  margin: 18px 0 8px;
  color: var(--teal);
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
p, li {
  color: #c7d0cd;
  font-size: 16px;
  line-height: 1.55;
}
ul, ol { padding-left: 20px; margin: 0; }
li + li { margin-top: 10px; }
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(99, 243, 223, 0.45);
  color: var(--teal);
  text-decoration: none;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
}
.button--gold {
  border-color: rgba(212, 155, 55, 0.55);
  color: var(--gold);
}
footer {
  padding: 26px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
@media (max-width: 900px) {
  .hero, .content { grid-template-columns: 1fr; }
  .meta { grid-template-columns: 1fr; }
  .guide-magnetar h1 { font-size: 64px; }
}