:root {
  color-scheme: dark;
  --ink: #041126;
  --ink-soft: #092047;
  --panel: rgba(10, 37, 76, 0.74);
  --line: rgba(113, 194, 255, 0.28);
  --text: #f3f7ff;
  --muted: #bed0e8;
  --blue: #347cff;
  --cyan: #48e3ff;
  --lime: #b9ff66;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 10%, rgba(52, 124, 255, .34), transparent 31rem),
    radial-gradient(circle at 12% 86%, rgba(72, 227, 255, .16), transparent 32rem),
    linear-gradient(145deg, #041126 0%, #071a38 50%, #031024 100%),
    var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a { color: inherit; }
.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 17, 38, .84);
  backdrop-filter: blur(18px);
}
.nav { position: relative; min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 760; letter-spacing: -.02em; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid rgba(94,231,241,.46); border-radius: 10px; background: linear-gradient(145deg, rgba(79,140,255,.26), rgba(94,231,241,.08)); color: var(--cyan); }
.brand small { display: block; color: var(--muted); font-size: .72rem; font-weight: 560; letter-spacing: .08em; text-transform: uppercase; }
.nav-links, .language-links { display: flex; align-items: center; gap: 8px; }
.nav-links a, .language-links a { padding: 8px 11px; border-radius: 9px; color: var(--muted); font-size: .9rem; text-decoration: none; }
.nav-links a:hover, .language-links a:hover, .language-links a[aria-current="page"] { color: var(--text); background: rgba(255,255,255,.06); }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 11px; background: rgba(255,255,255,.035); cursor: pointer; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.menu-icon { width: 19px; display: grid; gap: 4px; }
.menu-icon i { display: block; height: 2px; border-radius: 2px; background: var(--text); }
.mobile-menu[open] summary { border-color: rgba(72,227,255,.5); background: rgba(72,227,255,.08); }
.mobile-menu-panel { position: absolute; top: 52px; right: 0; min-width: 210px; padding: 8px; border: 1px solid var(--line); border-radius: 14px; background: rgba(4,17,38,.98); box-shadow: 0 22px 60px rgba(0,0,0,.38); }
.mobile-menu-panel a { display: block; padding: 12px 14px; border-radius: 9px; color: var(--muted); text-decoration: none; }
.mobile-menu-panel a:hover, .mobile-menu-panel a:focus-visible { color: var(--text); background: rgba(72,227,255,.08); }

.hero { min-height: 680px; display: grid; grid-template-columns: minmax(0,1.15fr) minmax(320px,.85fr); gap: 70px; align-items: center; padding: 92px 0 72px; }
.eyebrow { display: inline-flex; gap: 9px; align-items: center; padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--cyan); font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 18px var(--lime); }
h1 { max-width: 760px; margin: 26px 0 24px; font-size: clamp(3rem, 6.4vw, 6.1rem); line-height: .98; letter-spacing: -.065em; }
.gradient-text { color: transparent; background: linear-gradient(110deg, #ffffff 12%, var(--cyan) 52%, var(--blue)); background-clip: text; -webkit-background-clip: text; }
.lead { max-width: 670px; color: var(--muted); font-size: clamp(1.08rem, 1.8vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 18px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; font-weight: 680; }
.button.primary { border-color: transparent; background: var(--text); color: var(--ink); }
.button.secondary { color: var(--text); background: rgba(255,255,255,.035); }
.button:hover { transform: translateY(-1px); }

.system-orbit { position: relative; width: min(100%, 520px); aspect-ratio: 1; display: grid; place-items: center; margin-inline: auto; }
.system-orbit::before, .system-orbit::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(94,231,241,.22); }
.system-orbit::before { inset: 3%; }
.system-orbit::after { inset: 18%; border-style: dashed; animation: spin 30s linear infinite; }
.core { position: relative; z-index: 2; width: 58%; aspect-ratio: 1; display: grid; place-items: center; padding: 9%; border-radius: 36%; border: 1px solid rgba(145,183,255,.42); background: linear-gradient(145deg, rgba(52,124,255,.42), rgba(6,25,56,.92)); box-shadow: 0 22px 100px rgba(52,124,255,.28), inset 0 1px 0 rgba(255,255,255,.08); text-align: center; }
.core-inner { width: 100%; }
.core strong { display: block; font-size: 2.45rem; line-height: 1; letter-spacing: -.06em; }
.core-domains { display: block; margin-top: 11px; color: #dce9fb; font-size: .64rem; font-weight: 760; line-height: 1.35; letter-spacing: .07em; text-transform: uppercase; }
.core-outcomes { display: flex; justify-content: center; flex-wrap: wrap; gap: 5px; margin-top: 13px; }
.core-outcomes span { padding: 4px 7px; border: 1px solid rgba(72,227,255,.28); border-radius: 999px; background: rgba(72,227,255,.08); color: var(--cyan); font-size: .58rem; font-weight: 760; line-height: 1.2; letter-spacing: .04em; text-transform: uppercase; }
.core-result { display: block; margin-top: 12px; color: var(--text); font-size: .62rem; font-weight: 760; line-height: 1.35; letter-spacing: .08em; text-transform: uppercase; }
.node { position: absolute; z-index: 3; min-width: 82px; padding: 8px 12px; border: 1px solid rgba(113,194,255,.34); border-radius: 10px; background: rgba(9,32,71,.96); color: var(--text); font-size: .78rem; font-weight: 650; text-align: center; box-shadow: 0 10px 28px rgba(0,0,0,.2); }
.n1 { top: 3%; left: 50%; transform: translateX(-50%); }
.n2 { top: 50%; right: 1%; transform: translateY(-50%); }
.n3 { bottom: 3%; left: 50%; transform: translateX(-50%); }
.n4 { top: 50%; left: 1%; transform: translateY(-50%); }
@keyframes spin { to { transform: rotate(360deg); } }

section { padding: 96px 0; }
.section-head { display: grid; grid-template-columns: .72fr 1.28fr; gap: 50px; margin-bottom: 42px; align-items: end; }
.section-kicker { color: var(--cyan); font-size: .78rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
h2 { margin: 8px 0 0; font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.08; letter-spacing: -.045em; }
.section-head p { margin: 0; color: var(--muted); font-size: 1.08rem; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.card { min-height: 260px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.018)); }
.card-number { color: var(--cyan); font-size: .75rem; font-weight: 750; letter-spacing: .11em; }
.card h3 { margin: 58px 0 12px; font-size: 1.24rem; letter-spacing: -.02em; }
.card p { margin: 0; color: var(--muted); font-size: .94rem; }

.outcomes { padding-top: 34px; }
.outcome-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.outcome-item { position: relative; overflow: hidden; min-height: 310px; padding: 30px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(145deg, rgba(52,124,255,.15), rgba(9,32,71,.68)); }
.outcome-item::after { content: ""; position: absolute; width: 150px; height: 150px; right: -60px; bottom: -70px; border: 1px solid rgba(72,227,255,.22); border-radius: 50%; }
.outcome-pill { display: inline-block; padding: 6px 9px; border: 1px solid rgba(72,227,255,.28); border-radius: 999px; color: var(--cyan); font-size: .75rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.outcome-item h3 { max-width: 260px; margin: 66px 0 12px; font-size: 1.55rem; line-height: 1.15; letter-spacing: -.035em; }
.outcome-item p { position: relative; z-index: 1; margin: 0; color: var(--muted); }
.sales-cta { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 16px; padding: 28px 30px; border: 1px solid rgba(72,227,255,.3); border-radius: 18px; background: linear-gradient(100deg, rgba(72,227,255,.1), rgba(52,124,255,.13)); }
.sales-cta strong { display: block; font-size: 1.2rem; }
.sales-cta span { color: var(--muted); }

.workflow { border-block: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.step { padding: 32px; background: rgba(255,255,255,.025); }
.step + .step { border-left: 1px solid var(--line); }
.step b { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-bottom: 36px; border-radius: 50%; background: rgba(94,231,241,.12); color: var(--cyan); }
.step h3 { margin: 0 0 10px; font-size: 1.25rem; }
.step p { margin: 0; color: var(--muted); }
.boundary { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.boundary > div { padding: 30px; border-radius: 18px; }
.boundary .ai { background: linear-gradient(130deg, rgba(79,140,255,.23), rgba(94,231,241,.07)); border: 1px solid rgba(94,231,241,.28); }
.boundary .owner { background: rgba(255,255,255,.035); border: 1px solid var(--line); }
.boundary h3 { margin: 0 0 8px; }
.boundary p { margin: 0; color: var(--muted); }

.safety { padding-top: 30px; }
.safety-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 42px; border: 1px solid rgba(185,255,102,.22); border-radius: 20px; background: linear-gradient(110deg, rgba(185,255,102,.08), rgba(94,231,241,.04)); }
.safety-panel h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
.safety-panel p { color: var(--muted); margin-bottom: 0; }
.safe-label { color: var(--lime); font-size: .78rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.status { white-space: nowrap; padding: 10px 14px; border: 1px solid rgba(185,255,102,.32); border-radius: 999px; color: var(--lime); font-weight: 750; font-size: .82rem; }

footer { margin-top: 80px; padding: 34px 0; border-top: 1px solid var(--line); color: var(--muted); }
.footer-row { display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.footer-row strong { color: var(--text); }

.gateway { min-height: 100vh; display: grid; place-items: center; padding: 40px 0; }
.gateway-inner { width: min(900px, 100%); }
.gateway h1 { max-width: 850px; }
.language-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 42px; }
.language-card { display: block; padding: 24px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.035); text-decoration: none; transition: .2s ease; }
.language-card:hover { border-color: rgba(94,231,241,.55); background: rgba(94,231,241,.08); transform: translateY(-2px); }
.language-card small { display: block; color: var(--cyan); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.language-card strong { display: block; margin-top: 12px; font-size: 1.25rem; }
.language-card span { color: var(--muted); font-size: .9rem; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .mobile-menu { display: block; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 72px; }
  .system-orbit { max-width: 480px; width: 100%; margin: 0 auto; }
  .section-head { grid-template-columns: 1fr; gap: 18px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .outcome-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .nav { min-height: 66px; }
  .brand small { display: none; }
  .hero { gap: 36px; padding: 56px 0; }
  h1 { font-size: clamp(2.7rem, 14vw, 4.4rem); }
  section { padding: 68px 0; }
  .cards, .steps, .boundary, .language-grid { grid-template-columns: 1fr; }
  .system-orbit { width: min(100%, 430px); }
  .node { min-width: 72px; padding: 7px 9px; font-size: .72rem; }
  .core { width: 58%; padding: 8%; }
  .core strong { font-size: 2rem; }
  .core-domains { font-size: .58rem; }
  .core-outcomes { margin-top: 9px; }
  .core-outcomes span { padding: 3px 6px; font-size: .52rem; }
  .core-result { margin-top: 9px; font-size: .55rem; }
  .step + .step { border-left: 0; border-top: 1px solid var(--line); }
  .card { min-height: 220px; }
  .card h3 { margin-top: 38px; }
  .safety-panel { grid-template-columns: 1fr; padding: 28px; }
  .sales-cta { align-items: flex-start; flex-direction: column; }
  .footer-row { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .system-orbit::after { animation: none; }
  .button, .language-card { transition: none; }
}