:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --text: #eef2ff;
  --muted: #b9c2e3;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #7c9cff;
  --accent-2: #8ef0c8;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
  --radius: 22px;
  --max: 1120px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(124, 156, 255, 0.2), transparent 30%),
    radial-gradient(circle at top right, rgba(142, 240, 200, 0.16), transparent 24%),
    linear-gradient(180deg, #10172d 0%, #0b1020 100%);
  color: var(--text);
}

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

.shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(11, 16, 32, 0.72);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101d;
  box-shadow: var(--shadow);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
}

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

.hero {
  padding: 76px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.card,
.hero-panel,
.page-section,
.metric,
.faq,
.note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-panel,
.page-section,
.card,
.faq,
.note {
  padding: 28px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(124, 156, 255, 0.14);
  color: #dce4ff;
  font-size: 13px;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0 0 12px;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 0.98;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

h3 {
  font-size: 1.1rem;
}

p,
li {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.72;
}

.lead {
  font-size: 1.1rem;
  max-width: 60ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), #9ab2ff);
  color: #071225;
  font-weight: 700;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--line);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.metric {
  padding: 18px;
}

.metric strong {
  display: block;
  font-size: 1.35rem;
  margin-bottom: 4px;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 18px;
}

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

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

.page {
  padding: 44px 0 88px;
}

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

.page-section ul {
  margin: 10px 0 0 18px;
  padding: 0;
}

.page-head {
  max-width: 72ch;
  margin-bottom: 24px;
}

.page-head p {
  margin-bottom: 0;
}

.site-map {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.site-map .card h3 {
  margin-bottom: 8px;
}

.footer {
  padding: 34px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.muted {
  color: var(--muted);
}

.fine {
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .grid-3,
  .grid-2,
  .site-map,
  .metrics {
    grid-template-columns: 1fr;
  }

  .topbar-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}