:root {
  --bg: #0b1020;
  --bg-elev: #131a2d;
  --surface: #1a2239;
  --surface-soft: #f2f5fc;
  --text: #e8edf9;
  --text-muted: #b9c2d9;
  --text-dark: #1a2239;
  --brand: #7c8cff;
  --brand-strong: #6174ff;
  --border: #2c3759;
  --radius: 14px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: linear-gradient(180deg, #090e1b 0%, #0f1528 100%);
}

a {
  color: inherit;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(9, 14, 27, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  padding: 0.55rem;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 999px;
}

.nav-toggle span + span {
  margin-top: 6px;
}

.primary-nav {
  display: block;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-list a {
  text-decoration: none;
  color: var(--text-muted);
}

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

.section {
  padding: 4.5rem 0;
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.9rem;
  text-align: center;
}

.section-intro {
  max-width: 740px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
  text-align: center;
}

.section-muted {
  background: rgba(255, 255, 255, 0.03);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.hero {
  padding-top: 5.5rem;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.7rem;
  padding: 0.35rem 0.75rem;
  background: rgba(124, 140, 255, 0.16);
  border: 1px solid rgba(124, 140, 255, 0.35);
  border-radius: 999px;
  color: #c8d0ff;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.15;
}

.lead {
  max-width: 800px;
  margin: 1rem auto 1.8rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-block;
  padding: 0.72rem 1.1rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-strong);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--brand);
}

.stats-grid {
  margin-top: 2.2rem;
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  padding: 1rem;
}

.stat-card h2 {
  margin: 0;
  text-align: left;
  font-size: 1.5rem;
}

.stat-card p {
  margin: 0.2rem 0 0;
  color: var(--text-muted);
}

.cards-grid {
  display: grid;
  gap: 1rem;
}

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

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

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
}

.card h3 {
  margin-top: 0;
}

.card p,
.card li,
.card a {
  color: var(--text-muted);
}

.card a {
  word-break: break-word;
}

.card ul {
  margin: 0;
  padding-left: 1.1rem;
}

pre {
  background: #0b1225;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow-x: auto;
  padding: 0.85rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #d3dcff;
}

.callout {
  background: linear-gradient(180deg, rgba(124, 140, 255, 0.15), rgba(124, 140, 255, 0.05));
  border: 1px solid rgba(124, 140, 255, 0.3);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}

.callout p {
  color: var(--text-muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.2rem 0;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-grid p {
  margin: 0;
  color: var(--text-muted);
}

@media (max-width: 980px) {
  .cards-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .nav-wrap {
    align-items: center;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0.8rem 0;
  }

  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .primary-nav {
    display: none;
    width: 100%;
  }

  .primary-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    padding-top: 0.7rem;
  }

  .nav-list a {
    display: inline-block;
    width: 100%;
    padding: 0.35rem 0;
  }

  .cards-2,
  .cards-3,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3.4rem 0;
  }

  .callout {
    padding: 1.2rem;
  }
}