:root {
  --bg: #07070c;
  --bg-soft: #0d0d17;
  --panel: rgba(17, 17, 29, 0.86);
  --panel-strong: #141421;
  --text: #f5f2ff;
  --muted: #aaa6ba;
  --line: rgba(255, 255, 255, 0.11);
  --purple: #8b5cf6;
  --purple-bright: #a78bfa;
  --cyan: #37d4ff;
  --green: #73e6b1;
  --amber: #f4bf68;
  --red: #ff8f9c;
  --max: 1180px;
  --radius: 16px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 16% 5%, rgba(139, 92, 246, 0.17), transparent 31rem),
    radial-gradient(circle at 88% 22%, rgba(55, 212, 255, 0.1), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }
img { max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }

.skip-link {
  position: fixed; left: 1rem; top: 1rem; z-index: 1000;
  padding: .75rem 1rem; border-radius: 10px; background: white; color: #111;
  transform: translateY(-180%); transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 7, 12, .88);
  backdrop-filter: blur(18px);
}
.nav-wrap {
  width: min(calc(100% - 2rem), var(--max)); margin: auto; min-height: 76px;
  display: flex; align-items: center; gap: 1.2rem;
}
.brand { display: flex; align-items: center; text-decoration: none; flex: 0 0 auto; }
.brand img { width: 154px; display: block; }
.nav-toggle {
  display: none; margin-left: auto; border: 1px solid var(--line); border-radius: 10px;
  background: transparent; color: var(--text); padding: .55rem .75rem;
}
.site-nav { display: flex; align-items: center; gap: .25rem; margin-left: auto; }
.site-nav a {
  text-decoration: none; color: var(--muted); font-size: .93rem; font-weight: 650;
  padding: .65rem .72rem; border-radius: 10px;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); background: rgba(255,255,255,.06); }
.nav-group { display: flex; align-items: center; gap: .25rem; }
.nav-divider { width: 1px; height: 22px; background: var(--line); margin: 0 .35rem; flex: 0 0 auto; }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 46px; padding: .78rem 1.1rem; border-radius: 12px; border: 1px solid var(--line);
  color: var(--text); text-decoration: none; font-weight: 750; background: rgba(255,255,255,.04);
}
.button:hover { transform: translateY(-1px); border-color: rgba(255,255,255,.25); }
.button-primary { background: linear-gradient(120deg, var(--purple), #6545ef 52%, #3089c8); border: 0; box-shadow: 0 12px 35px rgba(101, 69, 239, .28); }
.button-quiet { color: var(--muted); }
.nav-cta { margin-left: .5rem; }

.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.narrow { width: min(calc(100% - 2rem), 800px); margin-inline: auto; }
.section { padding: clamp(4rem, 8vw, 7.5rem) 0; border-top: 1px solid var(--line); }
.section-tight { padding: 3rem 0; }
.hero { min-height: 720px; display: grid; place-items: center; padding: 7rem 0 5rem; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.eyebrow, .status {
  display: inline-flex; align-items: center; gap: .5rem; border: 1px solid rgba(167,139,250,.28);
  color: var(--purple-bright); background: rgba(139,92,246,.08); border-radius: 999px;
  padding: .42rem .72rem; font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
}
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.status-green { color: var(--green); border-color: rgba(115,230,177,.28); background: rgba(115,230,177,.07); }
.status-amber { color: var(--amber); border-color: rgba(244,191,104,.28); background: rgba(244,191,104,.07); }
.status-red { color: var(--red); border-color: rgba(255,143,156,.28); background: rgba(255,143,156,.07); }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.03em; margin: 0; }
h1 { font-size: clamp(3.4rem, 8vw, 6rem); max-width: 900px; }
h2 { font-size: clamp(2.25rem, 5vw, 4.4rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.65rem); }
.gradient { background: linear-gradient(110deg, var(--purple-bright), #c3a8ff 42%, var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(1.08rem, 2vw, 1.32rem); color: var(--muted); max-width: 760px; }
.hero .lede { margin: 1.5rem 0 0; }
.hero h1 { margin-top: 1.25rem; text-wrap: balance; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.microcopy { color: var(--muted); font-size: .86rem; margin-top: 1rem; }

.product-frame {
  position: relative; border: 1px solid rgba(167,139,250,.25); border-radius: 16px;
  padding: 1rem; background: linear-gradient(145deg, rgba(139,92,246,.12), rgba(55,212,255,.04)); box-shadow: var(--shadow);
}
.product-frame img { display: block; width: 100%; border-radius: 15px; aspect-ratio: 16/10; object-fit: cover; }
.frame-note { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem .25rem 0; color: var(--muted); font-size: .78rem; }

.section-head { display: flex; justify-content: space-between; gap: 2rem; align-items: end; margin-bottom: 2.5rem; }
.section-head p { color: var(--muted); max-width: 560px; margin: 0; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  padding: clamp(1.25rem, 3vw, 2rem); box-shadow: 0 14px 40px rgba(0,0,0,.14);
}
.card p, .card li { color: var(--muted); }
.card h3 + p { margin-top: .8rem; }
.card-featured { grid-column: 1 / -1; background: linear-gradient(120deg, rgba(139,92,246,.16), rgba(55,212,255,.06)); }
.card-link { display: inline-flex; margin-top: 1rem; color: var(--purple-bright); font-weight: 800; text-decoration: none; }
.card-link:hover { text-decoration: underline; }
.kicker { color: var(--purple-bright); font-weight: 800; font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.metric { font-size: 2rem; font-weight: 850; letter-spacing: -.04em; }

.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
.proof-strip > div { padding: 1.3rem; border-right: 1px solid var(--line); }
.proof-strip > div:last-child { border-right: 0; }
.proof-strip strong { display: block; font-size: 1.1rem; }
.proof-strip span { color: var(--muted); font-size: .84rem; }

.timeline { border-left: 1px solid rgba(167,139,250,.35); margin-left: .55rem; }
.timeline-item { position: relative; padding: 0 0 2rem 2rem; }
.timeline-item::before { content: ""; position: absolute; left: -6px; top: .35rem; width: 11px; height: 11px; background: var(--purple); border-radius: 50%; box-shadow: 0 0 0 5px rgba(139,92,246,.13); }
.timeline-item p { color: var(--muted); margin: .5rem 0 0; }

.section-copy > p:not(.lede) { color: var(--muted); max-width: 68ch; }

.demo-route {
  list-style: none; padding: 0; margin: 0; display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line);
}
.route-step { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: 2rem 1.5rem 2rem 0; }
.route-step + .route-step { border-left: 1px solid var(--line); padding-left: 1.5rem; }
.route-index {
  display: grid; place-items: center; align-self: start; width: 2rem; height: 2rem; border-radius: 50%;
  border: 1px solid rgba(167,139,250,.38); color: var(--purple-bright); font-weight: 850;
}
.route-step p { color: var(--muted); margin: .7rem 0 0; }
.route-step .button { margin-top: 1.25rem; }
.tour-notice { margin-top: 1rem; }
.demo-route-featured .route-step { padding-top: 2.5rem; padding-bottom: 2.5rem; }

.boundary-layout { display: grid; grid-template-columns: minmax(0,.88fr) minmax(440px,1.12fr); gap: clamp(2rem,6vw,5rem); align-items: start; }
.boundary-panel { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(17,17,29,.55); }
.boundary-panel section { padding: clamp(1.4rem,3vw,2rem); }
.boundary-panel section + section { border-top: 1px solid var(--line); }
.boundary-panel h3 { color: var(--text); }
.boundary-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.boundary-list li { position: relative; padding: .65rem 0 .65rem 1.4rem; color: var(--muted); border-top: 1px solid rgba(255,255,255,.06); }
.boundary-list li::before { content: ""; position: absolute; left: .1rem; top: 1.25rem; width: 6px; height: 6px; border-radius: 50%; background: var(--purple-bright); }

.capability-ledger { border-top: 1px solid var(--line); }
.capability-row { display: flex; justify-content: space-between; gap: 2rem; align-items: center; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.capability-row h3 { font-size: clamp(1.15rem,2vw,1.45rem); }
.capability-row p { margin: .5rem 0 0; color: var(--muted); max-width: 72ch; }
.capability-row > span { flex: 0 0 8.5rem; color: var(--purple-bright); font-size: .78rem; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; text-align: right; }
.capability-row > a { flex: 0 0 auto; color: var(--purple-bright); font-weight: 800; text-decoration: none; }
.capability-row > a:hover { text-decoration: underline; }

.relay-panel {
  display: grid; grid-template-columns: minmax(0,1.05fr) minmax(380px,.95fr); gap: clamp(2rem,6vw,5rem); align-items: center;
  padding: clamp(2rem,5vw,4rem); border: 1px solid rgba(167,139,250,.28); border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(139,92,246,.14), rgba(55,212,255,.035));
}
.relay-copy h2 { margin-top: 1.2rem; }
.relay-flow { list-style: none; padding: 0; margin: 0; border-top: 1px solid rgba(167,139,250,.34); }
.relay-flow li { position: relative; display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.relay-flow strong { color: var(--text); }
.relay-flow span { color: var(--muted); }

.lineage { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--line); }
.lineage-stage { padding: 2rem 1.5rem 2rem 0; }
.lineage-stage + .lineage-stage { border-left: 1px solid var(--line); padding-left: 1.5rem; }
.lineage-stage > span { color: var(--purple-bright); font-size: .78rem; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.lineage-stage h3 { margin-top: .8rem; }
.lineage-stage p { color: var(--muted); }
.lineage-current { background: linear-gradient(145deg, rgba(139,92,246,.12), transparent); padding-right: 1.5rem; }
.lineage-detailed .lineage-stage { min-height: 250px; }

.release-summary { border-top: 1px solid rgba(167,139,250,.34); padding-top: 1.25rem; }
.release-summary p { color: var(--muted); }

.notice { border: 1px solid rgba(244,191,104,.28); background: rgba(244,191,104,.07); border-radius: var(--radius); padding: 1.25rem; color: #f3dfbc; }
.notice strong { color: var(--amber); }
.notice-danger { border-color: rgba(255,143,156,.3); background: rgba(255,143,156,.06); color: #f7cbd1; }
.notice-danger strong { color: var(--red); }
.checklist { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.checklist li { position: relative; padding: .55rem 0 .55rem 1.65rem; color: var(--muted); border-bottom: 1px solid rgba(255,255,255,.06); }
.checklist li::before { content: "•"; position: absolute; left: .3rem; color: var(--purple-bright); font-weight: 900; }
.definition-grid { display: grid; grid-template-columns: 220px 1fr; gap: 0; border-top: 1px solid var(--line); }
.definition-grid dt, .definition-grid dd { margin: 0; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.definition-grid dt { color: var(--text); font-weight: 800; padding-right: 1rem; }
.definition-grid dd { color: var(--muted); }

.page-hero { padding: 7rem 0 4rem; }
.page-hero h1 { font-size: clamp(3rem, 7vw, 6rem); margin-top: 1rem; }
.page-hero .lede { margin-top: 1.2rem; }
.breadcrumbs { color: var(--muted); font-size: .86rem; margin-bottom: 1.2rem; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--text); }
.prose h2 { margin-top: 3.5rem; font-size: clamp(2rem,4vw,3.2rem); }
.prose h3 { margin-top: 2rem; }
.prose p, .prose li { color: var(--muted); }
.prose a { color: var(--cyan); }
.prose blockquote { border-left: 3px solid var(--purple); margin: 2rem 0; padding: .5rem 1.2rem; color: #d6d0e4; background: rgba(139,92,246,.06); }
.prose code { background: rgba(255,255,255,.07); border: 1px solid var(--line); border-radius: 6px; padding: .1rem .35rem; }

.cta-panel { text-align: center; border: 1px solid rgba(167,139,250,.25); border-radius: 16px; padding: clamp(2rem,6vw,4rem); background: linear-gradient(145deg, rgba(139,92,246,.14), rgba(55,212,255,.05)); }
.cta-panel p { max-width: 650px; color: var(--muted); margin: 1rem auto 0; }
.cta-panel .actions { justify-content: center; }

.site-footer { border-top: 1px solid var(--line); padding: 3.5rem 0; background: #06060a; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 2rem; }
.site-footer h2 { font-size: 1rem; letter-spacing: 0; }
.site-footer p, .site-footer a { color: var(--muted); font-size: .9rem; }
.site-footer a { display: block; text-decoration: none; margin-top: .55rem; }
.site-footer a:hover { color: var(--text); }
.legal-line { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; position: absolute; left: 1rem; right: 1rem; top: 68px; flex-direction: column; align-items: stretch; background: #10101a; border: 1px solid var(--line); border-radius: 14px; padding: .7rem; box-shadow: var(--shadow); }
  .site-nav[data-open="true"] { display: flex; }
  .site-nav a { padding: .8rem; }
  .nav-group { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-divider { width: auto; height: 1px; margin: .4rem .6rem; }
  .nav-cta { margin: .3rem 0 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .demo-route, .lineage { grid-template-columns: 1fr; }
  .route-step, .lineage-stage { padding: 1.6rem 0; }
  .route-step + .route-step, .lineage-stage + .lineage-stage { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .lineage-current { padding-inline: 1.25rem; }
  .boundary-layout, .relay-panel { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid-3 { grid-template-columns: 1fr; }
  .proof-strip { grid-template-columns: repeat(2,1fr); }
  .proof-strip > div:nth-child(2) { border-right: 0; }
  .proof-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 640px) {
  .container, .narrow, .nav-wrap { width: min(calc(100% - 1.25rem), var(--max)); }
  .brand img { width: 132px; }
  h1 { font-size: clamp(2.8rem, 14vw, 3.8rem); }
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .section-head p { margin-top: 1rem; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-strip > div:last-child { border-bottom: 0; }
  .definition-grid { grid-template-columns: 1fr; }
  .definition-grid dt { border-bottom: 0; padding-bottom: 0; }
  .boundary-layout { gap: 2rem; }
  .capability-row { display: block; }
  .capability-row > span, .capability-row > a { display: inline-block; margin-top: .8rem; text-align: left; }
  .relay-panel { padding: 1.4rem; }
  .relay-flow li { grid-template-columns: 1fr; gap: .3rem; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media print {
  .site-header, .site-footer, .actions, .skip-link { display: none !important; }
  body { background: white; color: #111; }
  .card, .notice, .cta-panel { color: #111; background: white; box-shadow: none; border-color: #ccc; }
  .card p, .card li, .prose p, .prose li, .lede { color: #333; }
}