@font-face { font-family: 'Rajdhani'; font-weight: 400; font-style: normal; font-display: swap; src: url('../fonts/rajdhani-400.woff2') format('woff2'); }
@font-face { font-family: 'Rajdhani'; font-weight: 500; font-style: normal; font-display: swap; src: url('../fonts/rajdhani-500.woff2') format('woff2'); }
@font-face { font-family: 'Rajdhani'; font-weight: 600; font-style: normal; font-display: swap; src: url('../fonts/rajdhani-600.woff2') format('woff2'); }
@font-face { font-family: 'Rajdhani'; font-weight: 700; font-style: normal; font-display: swap; src: url('../fonts/rajdhani-700.woff2') format('woff2'); }
@font-face { font-family: 'Barlow'; font-weight: 400; font-style: normal; font-display: swap; src: url('../fonts/barlow-400.woff2') format('woff2'); }
@font-face { font-family: 'Barlow'; font-weight: 500; font-style: normal; font-display: swap; src: url('../fonts/barlow-500.woff2') format('woff2'); }
@font-face { font-family: 'Barlow'; font-weight: 600; font-style: normal; font-display: swap; src: url('../fonts/barlow-600.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 400; font-style: normal; font-display: swap; src: url('../fonts/jetbrains-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 500; font-style: normal; font-display: swap; src: url('../fonts/jetbrains-mono-500.woff2') format('woff2'); }

:root {
  --bg-deep: #060818;
  --bg-section: #0a0d2a;
  --bg-card: #0f1338;
  --bg-elevated: #161b45;
  --border-subtle: rgba(106, 140, 255, 0.12);
  --border-glow: rgba(111, 181, 255, 0.25);
  --cosmic-bright: #3a7be8;
  --cosmic-glow: #6fb5ff;
  --cosmic-pale: #a8d4ff;
  --accent-green: #34d399;
  --accent-amber: #fbbf24;
  --text-primary: #e8eaed;
  --text-secondary: #9aa3b4;
  --text-muted: #5f6b7a;
  --font-display: 'Rajdhani', system-ui, sans-serif;
  --font-body: 'Barlow', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 { text-wrap: pretty; }
p { text-wrap: pretty; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(6, 8, 24, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-icon {
  font-size: 22px;
  color: var(--cosmic-glow);
  margin-top: -5px;
}
.brand-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.5px;
}
.brand-accent { color: var(--cosmic-glow); }
.header-nav { display: flex; gap: 8px; }
.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--text-primary); background: var(--bg-elevated); }
.nav-link--soon { opacity: 0.5; }
.nav-link--active { color: var(--text-primary); background: var(--bg-elevated); }
.nav-link--gh { color: var(--cosmic-glow); }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 32px 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(58, 123, 232, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58, 123, 232, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}
.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(58, 123, 232, 0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cosmic-glow);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeRise 0.6s 0.2s forwards;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(42px, 7vw, 80px);
  line-height: 1.0;
  letter-spacing: -0.5px;
  margin-bottom: 28px;
  text-wrap: balance;
  opacity: 0;
  animation: fadeRise 0.6s 0.4s forwards;
}
.hero-lede {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
  text-wrap: balance;
  opacity: 0;
  animation: fadeRise 0.6s 0.6s forwards;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeRise 0.6s 0.8s forwards;
}

.btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 32px;
  border-radius: 8px;
  letter-spacing: 0.5px;
  transition: transform 0.15s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--cosmic-bright);
  color: #fff;
  box-shadow: 0 4px 20px rgba(58, 123, 232, 0.3);
}
.btn--primary:hover { box-shadow: 0 6px 30px rgba(58, 123, 232, 0.5); }
.btn--ghost {
  border: 1px solid var(--border-glow);
  color: var(--cosmic-pale);
}
.btn--ghost:hover { background: rgba(111, 181, 255, 0.08); }
.btn--soon { opacity: 0.5; pointer-events: none; }

.stats {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-section);
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 32px;
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 48px;
  color: var(--cosmic-glow);
  line-height: 1;
}
.stat-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 8px;
  display: block;
}

.features { padding: 100px 32px; }
.features-inner { max-width: 1200px; margin: 0 auto; }
.section-heading {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 5vw, 48px);
  text-align: center;
  margin-bottom: 16px;
}
.section-sub {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 60px;
  font-size: 16px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 36px 28px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  display: block;
}
.feature-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(58, 123, 232, 0.1);
}
.feature-card--soon { opacity: 0.7; }
.feature-card--soon:hover { opacity: 0.85; }
.feature-icon {
  font-size: 28px;
  margin-bottom: 16px;
  color: var(--cosmic-glow);
}
.feature-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  margin-bottom: 10px;
}
.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.feature-status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 10px;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  display: inline-block;
}
.feature-status--live {
  color: var(--accent-green);
  border-color: rgba(52, 211, 153, 0.3);
}

.source-callout {
  display: block;
  margin-top: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px 36px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.source-callout:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 40px rgba(58, 123, 232, 0.1);
}
.source-callout-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}
.source-icon {
  font-size: 36px;
  color: var(--cosmic-glow);
  flex-shrink: 0;
}
.source-text { flex: 1; }
.source-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  margin-bottom: 6px;
}
.source-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.source-arrow {
  font-size: 24px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 0.2s, transform 0.2s;
}
.source-callout:hover .source-arrow {
  color: var(--cosmic-glow);
  transform: translateX(4px);
}

.families {
  padding: 100px 32px;
  background: var(--bg-section);
}
.families-inner { max-width: 1200px; margin: 0 auto; }
.family-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.family-chip {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: border-color 0.2s;
}
.family-chip:hover { border-color: var(--border-glow); }
.family-symbol {
  font-size: 18px;
  color: var(--cosmic-glow);
  width: 24px;
  text-align: center;
}
.family-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(111, 181, 255, 0.08);
  padding: 2px 7px;
  border-radius: 4px;
  margin-left: 4px;
}

.topologies { padding: 100px 32px; }
.topologies-inner { max-width: 1200px; margin: 0 auto; }
.topo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.topo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color 0.2s;
}
.topo-card:hover { border-color: var(--border-glow); }
.topo-visual {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 8px;
  opacity: 0.7;
}
.topo-visual--grid {
  background:
    linear-gradient(var(--cosmic-bright) 1px, transparent 1px),
    linear-gradient(90deg, var(--cosmic-bright) 1px, transparent 1px);
  background-size: 16px 16px;
}
.topo-visual--hex {
  background: conic-gradient(from 30deg, var(--cosmic-bright) 0deg, transparent 60deg, var(--cosmic-bright) 60deg, transparent 120deg, var(--cosmic-bright) 120deg, transparent 180deg, var(--cosmic-bright) 180deg, transparent 240deg, var(--cosmic-bright) 240deg, transparent 300deg, var(--cosmic-bright) 300deg, transparent 360deg);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}
.topo-visual--track {
  background: linear-gradient(90deg, transparent 45%, var(--cosmic-bright) 45%, var(--cosmic-bright) 55%, transparent 55%);
  position: relative;
}
.topo-visual--track::before {
  content: '';
  position: absolute;
  inset: 12px;
  border: 2px solid var(--cosmic-bright);
  border-radius: 50%;
}
.topo-visual--pit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}
.topo-visual--pit::before, .topo-visual--pit::after {
  content: '';
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--cosmic-bright);
}
.topo-visual--graph {
  position: relative;
}
.topo-visual--graph::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 2px solid var(--cosmic-bright);
  border-radius: 4px;
  transform: rotate(45deg);
}
.topo-visual--graph::after {
  content: '';
  position: absolute;
  inset: 20px;
  background: var(--cosmic-bright);
  border-radius: 50%;
}
.topo-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 8px;
}
.topo-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}
.topo-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cosmic-glow);
}

.developer {
  padding: 100px 32px;
  background: var(--bg-section);
}
.developer-inner { max-width: 800px; margin: 0 auto; }
.dev-tabs {
  display: flex;
  gap: 0;
  margin-top: 48px;
  border-bottom: 1px solid var(--border-subtle);
}
.dev-tab {
  flex: 1;
  padding: 14px 20px;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.dev-tab:hover { color: var(--text-secondary); }
.dev-tab.active {
  color: var(--cosmic-glow);
  border-bottom-color: var(--cosmic-glow);
}
.dev-panels { margin-top: 0; }
.dev-panel {
  display: none;
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-top: none;
  border-radius: 0 0 12px 12px;
}
.dev-panel.active { display: block; }
.dev-code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 20px 24px;
  overflow-x: auto;
  margin-bottom: 16px;
  color: var(--cosmic-pale);
}
.dev-note {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.architecture { padding: 100px 32px; }
.architecture-inner { max-width: 800px; margin: 0 auto; }
.arch-layers {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 60px;
}
.arch-layer {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}
.arch-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  min-width: 60px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.arch-packages { display: flex; gap: 8px; flex-wrap: wrap; }
.arch-pkg {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  padding: 6px 12px;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--text-secondary);
}
.arch-pkg--core {
  color: var(--cosmic-glow);
  border: 1px solid var(--border-glow);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 32px 32px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col:nth-child(2) { align-items: center; text-align: center; }
.footer-col:nth-child(3) { align-items: flex-end; text-align: right; }
.footer-heading {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.footer-col a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--cosmic-glow); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--text-muted);
}
.footer-version { color: var(--text-muted); }

@keyframes fadeRise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6, 8, 24, 0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 16px 32px;
    gap: 4px;
    border-bottom: 1px solid var(--border-subtle);
  }
  .header-nav.open { display: flex; }
  .header-nav .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 16px;
  }
  .header-nav .nav-link:last-child { border-bottom: none; }
  .hero { padding: 100px 20px 60px; }
  .hero-title { font-size: 36px; }
  .stats-inner { gap: 24px; }
  .stat-value { font-size: 36px; }
  .feature-grid { grid-template-columns: 1fr; }
  .dev-tab { font-size: 14px; padding: 12px 10px; }
  .topo-grid { grid-template-columns: repeat(2, 1fr); }
  .family-chip { font-size: 13px; padding: 10px 14px; }
  .arch-layer { flex-direction: column; align-items: flex-start; gap: 10px; }
  .source-callout-inner { flex-direction: column; text-align: center; gap: 16px; }
  .source-arrow { display: none; }
  .footer-columns { grid-template-columns: 1fr; gap: 24px; }
  .footer-col,
  .footer-col:nth-child(2),
  .footer-col:nth-child(3) { align-items: center; text-align: center; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}