:root{
  --bg:#ffffff; --bg-alt:#f6f8fb; --fg:#0b1324; --muted:#55607a; --faint:#8a93a8;
  --line:#e3e8f0; --line-2:#cfd6e3;
  --accent:#2f5bea; --accent-2:#1d3fb8; --accent-soft:#eef2fe;
  --dark:#0a1020; --dark-2:#111a30; --dark-fg:#e9eefb; --dark-muted:#9aa6c4; --dark-line:rgba(233,238,251,.10);
  --mark:#0a1020; --mark-fg:#ffffff; --mark-sun:#7aa2ff;
  --radius:14px;
  --shadow:0 1px 2px rgba(11,19,36,.04),0 12px 32px -18px rgba(11,19,36,.22);
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#0a0f1c; --bg-alt:#0e1526; --fg:#e9eefb; --muted:#9aa6c4; --faint:#6c7792;
         --line:#1b2438; --line-2:#28334c; --accent:#7aa2ff; --accent-2:#a3bfff; --accent-soft:#131e38;
         --dark:#060a14; --dark-2:#0d1426; --mark:#e9eefb; --mark-fg:#0a1020; --mark-sun:#2f5bea;
         --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 32px -18px rgba(0,0,0,.6); }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--fg);
  font:16px/1.6 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"cv11","ss01"}
a{color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 32px}
h1,h2,h3{letter-spacing:-.022em;font-weight:600}

/* header */
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:saturate(1.5) blur(12px);-webkit-backdrop-filter:saturate(1.5) blur(12px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;gap:40px;height:68px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--fg);font-weight:700;font-size:17px;letter-spacing:-.02em}
.brand-sub{font-weight:400;color:var(--muted);margin-left:5px}
.mark{width:30px;height:30px;border-radius:8px;background:var(--mark);display:grid;place-items:center;flex:none}
.mark svg{width:22px;height:22px}
nav ul{display:flex;gap:28px;list-style:none;margin:0 auto 0 0;padding:0}
nav ul a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500;transition:color .15s}
nav ul a:hover{color:var(--fg)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:9px;background:var(--accent);color:#fff;
  font-weight:600;font-size:15px;text-decoration:none;border:1px solid transparent;transition:background .15s,transform .15s,border-color .15s}
.btn:hover{background:var(--accent-2)}
.btn:active{transform:translateY(1px)}
.btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{background:transparent;color:var(--dark-fg);border-color:rgba(233,238,251,.25)}
.btn-ghost:hover{background:rgba(233,238,251,.08);border-color:rgba(233,238,251,.5)}
@media (prefers-color-scheme:dark){ .btn{color:#0a1020} .btn-ghost{color:var(--dark-fg)} }

/* hero */
.hero{position:relative;background:var(--dark);color:var(--dark-fg);padding:96px 0 0;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 70% at 78% 30%,rgba(47,91,234,.35),transparent 70%),
    radial-gradient(40% 50% at 10% 100%,rgba(122,162,255,.12),transparent 70%),
    linear-gradient(rgba(233,238,251,.045) 1px,transparent 1px) 0 0/56px 56px,
    linear-gradient(90deg,rgba(233,238,251,.045) 1px,transparent 1px) 0 0/56px 56px}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:56px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:10px;margin:0 0 24px;padding:6px 14px 6px 12px;border:1px solid var(--dark-line);
  border-radius:999px;font-size:13px;font-weight:500;color:var(--dark-muted);background:rgba(233,238,251,.03)}
.dot{width:7px;height:7px;border-radius:50%;background:#7aa2ff;box-shadow:0 0 0 4px rgba(122,162,255,.18)}
h1{font-size:58px;line-height:1.04;letter-spacing:-.035em;margin:0 0 24px;font-weight:600;text-wrap:balance}
h2{text-wrap:balance}
.lede{font-size:18.5px;line-height:1.6;color:var(--dark-muted);max-width:54ch;margin:0 0 34px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.hero-art{position:relative;margin:0}
.lattice{width:100%;height:auto;display:block}
.lattice .nodes circle{fill:#0d1630;stroke:#7aa2ff;stroke-width:1.6}
.lattice .out{fill:#2f5bea;stroke:#a3bfff;stroke-width:2}
.lattice .pulse circle{fill:#a3bfff;opacity:0;animation:pulse 3.6s infinite}
.lattice .pulse circle:nth-child(2){animation-delay:.6s}
.lattice .pulse circle:nth-child(3){animation-delay:1.2s}
@keyframes pulse{0%{opacity:0}12%{opacity:.9}40%{opacity:0}100%{opacity:0}}
.hero-card{position:relative;margin:-14px 0 0 auto;width:280px;padding:16px 18px;border-radius:12px;background:rgba(13,22,48,.82);
  border:1px solid var(--dark-line);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 20px 40px -20px rgba(0,0,0,.6)}
.hc-k{margin:0 0 10px;font:500 11.5px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:#7aa2ff}
.hero-card ul{list-style:none;margin:0;padding:0;font-size:13.5px}
.hero-card li{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-top:1px solid var(--dark-line)}
.hero-card li span{color:var(--dark-muted)}
.hero-card li b{font-weight:500}
.facts{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:72px 0 0;border-top:1px solid var(--dark-line)}
.facts>div{padding:26px 24px 30px;border-left:1px solid var(--dark-line)}
.facts>div:first-child{border-left:0;padding-left:0}
.facts dt{font-size:13px;color:var(--dark-muted);margin:0 0 6px}
.facts dd{margin:0;font-size:19px;font-weight:600;letter-spacing:-.015em}

/* sections */
.sec{padding:104px 0}
.sec-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin:0 0 52px}
.eyebrow{margin:0 0 14px;font:500 12.5px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
h2{font-size:40px;line-height:1.12;margin:0 0 18px}
.sec-lede{font-size:17.5px;color:var(--muted);margin:0;max-width:60ch}
h3{font-size:17.5px;margin:0 0 8px}

.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{padding:30px 28px 28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);transition:border-color .2s,box-shadow .2s,transform .2s}
.card:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-2px)}
.card p{margin:0;color:var(--muted);font-size:15px}
.ico{width:42px;height:42px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin:0 0 22px}
.ico svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* platform */
.sec-dark{background:var(--dark);color:var(--dark-fg)}
.sec-dark .sec-lede{color:var(--dark-muted)}
.sec-dark .eyebrow{color:#7aa2ff}
.platform{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:72px;align-items:center}
.platform .sec-head{margin:0}
.checks{list-style:none;margin:30px 0 0;padding:0;display:grid;gap:12px}
.checks li{position:relative;padding-left:30px;color:var(--dark-fg);font-size:15.5px}
.checks li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%;background:rgba(122,162,255,.16)}
.checks li::after{content:"";position:absolute;left:6px;top:7px;width:5px;height:8px;border:solid #7aa2ff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.stack{display:grid;gap:12px}
.layer{display:flex;align-items:center;gap:20px;padding:20px 22px;border-radius:12px;background:var(--dark-2);border:1px solid var(--dark-line);transition:border-color .2s}
.layer:hover{border-color:rgba(122,162,255,.45)}
.layer:nth-child(1){margin-right:0}
.layer:nth-child(2){margin-left:16px}
.layer:nth-child(3){margin-left:32px}
.layer:nth-child(4){margin-left:48px;background:linear-gradient(90deg,rgba(47,91,234,.28),var(--dark-2))}
.ln{font:500 12px/1 "JetBrains Mono",ui-monospace,monospace;color:#7aa2ff;padding:7px 8px;border-radius:6px;background:rgba(122,162,255,.12)}
.layer b{display:block;font-weight:600;font-size:16px}
.layer small{color:var(--dark-muted);font-size:13.5px}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.steps li{padding:30px 28px 0 0;position:relative}
.steps li::before{content:"";position:absolute;top:-1px;left:0;width:48px;height:2px;background:var(--accent)}
.sn{display:block;margin:0 0 18px;font:500 13px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--faint)}
.steps p{margin:0;color:var(--muted);font-size:15px}

/* responsible AI */
.rows{border-top:1px solid var(--line-2)}
.row{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,2fr);gap:40px;padding:26px 0;border-bottom:1px solid var(--line-2);align-items:baseline}
.row h3{margin:0;font-size:17px}
.row p{margin:0;color:var(--muted);font-size:16px}

/* company */
.company{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:72px;align-items:start}
.company p{color:var(--muted);font-size:17px;max-width:60ch;margin:0 0 18px}
.entity{border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;background:var(--bg-alt)}
.entity .hc-k{color:var(--accent)}
.entity dl{margin:6px 0 0}
.entity dl>div{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-top:1px solid var(--line);font-size:15px}
.entity dl>div:first-child{border-top:0}
.entity dt{color:var(--muted)}
.entity dd{margin:0;font-weight:500;text-align:right}

/* contact */
.contact{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.contact>div{background:var(--bg);padding:26px 26px 28px}
.contact .span2{grid-column:span 2}
.ck{margin:0 0 10px;font-size:13px;color:var(--muted);font-weight:500}
.contact a{font-weight:600;font-size:15.5px;text-decoration:none;border-bottom:1px solid var(--line-2);transition:border-color .15s,color .15s;overflow-wrap:anywhere}
.contact a:hover{color:var(--accent);border-color:var(--accent)}
address{font-style:normal;font-weight:500;font-size:15.5px}

/* footer */
.foot{background:var(--dark);color:var(--dark-muted);padding:72px 0 36px;font-size:14.5px}
.foot .brand{color:var(--dark-fg)}
.foot .brand-sub{color:var(--dark-muted)}
.foot .mark{background:#e9eefb}
.foot .mark path{stroke:#0a1020}
.foot .mark circle{stroke:#2f5bea}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px;padding-bottom:48px;border-bottom:1px solid var(--dark-line)}
.foot-brand p{margin:16px 0 0;max-width:32ch}
.fk{margin:0 0 14px;color:var(--dark-fg);font-weight:600;font-size:14px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.foot ul a{text-decoration:none;transition:color .15s}
.foot ul a:hover{color:var(--dark-fg)}
.foot-base{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:28px;font-size:13.5px}

/* legal pages */
.doc{max-width:760px;margin:0 auto;padding:80px 32px 104px}
.doc h1{font-size:44px;color:var(--fg);margin-bottom:10px}
.doc .updated{color:var(--muted);margin:0 0 44px;font-size:14.5px}
.doc h2{font-size:21px;margin:40px 0 12px}
.doc p,.doc li{color:var(--muted);font-size:16px}
.doc a{color:var(--accent)}

@media(max-width:1000px){
  .hero-grid,.platform,.company{grid-template-columns:1fr;gap:48px}
  .hero-art{max-width:520px}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px}
  .contact{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .foot-brand{grid-column:1/-1}
}
@media(max-width:760px){
  .wrap{padding:0 20px}
  nav{gap:16px}
  nav ul{display:none}
  .btn-sm{margin-left:auto}
  .hero{padding-top:56px}
  h1{font-size:38px}
  .lede{font-size:16.5px}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:48px}
  .facts>div{padding:20px 16px 22px}
  .facts>div:nth-child(odd){border-left:0;padding-left:0}
  .facts>div:nth-child(n+3){border-top:1px solid var(--dark-line)}
  .facts dd{font-size:17px}
  .hero-card{width:auto;margin:-8px 0 0}
  .sec{padding:68px 0}
  h2{font-size:30px}
  .sec-head{margin-bottom:36px}
  .cards,.steps,.contact{grid-template-columns:1fr}
  .contact .span2{grid-column:auto}
  .layer:nth-child(n){margin-left:0}
  .row{grid-template-columns:1fr;gap:6px;padding:20px 0}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .doc{padding:56px 20px 72px}
  .doc h1{font-size:34px}
}
@media(max-width:420px){
  .brand-sub{display:none}
  h1{font-size:33px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .lattice .pulse circle{animation:none}
  .card:hover{transform:none}
}