:root {
  --bg: #090b07;
  --bg-alt: #111609;
  --panel: rgba(17, 20, 12, 0.82);
  --panel-strong: #12170d;
  --border: rgba(232, 243, 77, 0.12);
  --text: #f5f7ef;
  --muted: #b6bea2;
  --accent: #e8f34d;
  --accent-soft: rgba(232, 243, 77, 0.14);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.34);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 10%, rgba(232, 243, 77, 0.22), transparent 22rem),
    radial-gradient(circle at 10% 90%, rgba(117, 255, 112, 0.18), transparent 24rem),
    linear-gradient(180deg, #070906 0%, #0e1309 55%, #141b0d 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(8, 10, 7, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #12150d;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 12px 30px rgba(232, 243, 77, 0.24);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav a {
  padding: 10px 14px;
  color: var(--muted);
  border-radius: var(--radius-sm);
  transition: 160ms ease;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  padding: 72px 0 36px;
}

.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 18px 0 16px;
  max-width: 10ch;
  font-size: clamp(42px, 7vw, 86px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero p {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.6;
}

.meta-grid,
.card-grid {
  display: grid;
  gap: 18px;
}

.meta-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin: 32px 0 0;
}

.meta-card,
.link-card,
.section-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.meta-card {
  padding: 22px;
}

.meta-label {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta-value {
  font-size: 18px;
  line-height: 1.5;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  padding: 12px 0 64px;
}

.link-card {
  padding: 28px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.link-card:hover {
  transform: translateY(-2px);
  border-color: rgba(232, 243, 77, 0.28);
  background: rgba(20, 24, 14, 0.92);
}

.link-card h2 {
  margin: 0 0 12px;
  font-size: 30px;
  letter-spacing: -0.03em;
}

.link-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.7;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent);
  font-weight: 700;
}

.doc-header {
  padding: 56px 0 28px;
}

.doc-title {
  margin: 18px 0 14px;
  max-width: 12ch;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.doc-subtitle {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.doc-layout {
  display: grid;
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: 28px;
  padding-bottom: 60px;
}

.toc {
  position: sticky;
  top: 92px;
  align-self: start;
  padding: 20px;
  background: rgba(13, 17, 10, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 22px;
}

.toc-title {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.toc a {
  display: block;
  padding: 9px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

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

.doc-content {
  display: grid;
  gap: 18px;
}

.section-card {
  padding: 28px;
}

.section-card h2 {
  margin: 0 0 14px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.section-card p,
.section-card li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.section-card ul {
  margin: 14px 0 0;
  padding-left: 20px;
}

.section-card strong {
  color: var(--text);
}

.footer {
  padding: 20px 0 56px;
  color: var(--muted);
  font-size: 14px;
}

.footer-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

@media (max-width: 920px) {
  .doc-layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }
}

@media (max-width: 640px) {
  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 56px;
  }

  .section-card,
  .link-card,
  .meta-card {
    padding: 22px;
  }
}