:root{
  --bg:#070d19; --bg2:#0b1424; --panel:#0e1729; --line:#1c2a44;
  --text:#e6edf7; --muted:#93a4bf; --accent:#22d3ee; --accent2:#6366f1;
  --light:#f4f7fb; --ink:#0b1220; --ink-muted:#4a5a75;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:"Space Grotesk",Inter,sans-serif;line-height:1.15;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.mono{font-family:"JetBrains Mono",monospace}
.wrap{width:min(1140px,100% - 40px);margin-inline:auto}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(7,13,25,.8);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Space Grotesk";font-size:1.3rem;font-weight:500}
.brand b{font-weight:700;color:var(--accent)}
.menu{display:flex;align-items:center;gap:28px;font-size:.95rem;color:var(--muted)}
.menu a:not(.btn):hover{color:var(--text)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;position:relative}
.burger span{position:absolute;left:9px;right:9px;height:2px;background:var(--text);transition:.25s}
.burger span:first-child{top:15px}.burger span:last-child{top:23px}
.burger[aria-expanded=true] span:first-child{top:19px;transform:rotate(45deg)}
.burger[aria-expanded=true] span:last-child{top:19px;transform:rotate(-45deg)}

/* buttons */
.btn{display:inline-block;background:var(--accent);color:#04101c;font-weight:600;padding:13px 24px;border-radius:10px;border:1px solid var(--accent);cursor:pointer;font:600 1rem Inter,sans-serif;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px -6px rgba(34,211,238,.5)}
.btn-sm{padding:8px 16px;font-size:.9rem;color:#04101c!important}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);box-shadow:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* eyebrow */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.eyebrow::before{content:"";width:24px;height:12px;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 12'%3E%3Cpath d='M0 10h4V2h5v8h4V2h5v8h2' fill='none' stroke='black' stroke-width='1.8' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 12'%3E%3Cpath d='M0 10h4V2h5v8h4V2h5v8h2' fill='none' stroke='black' stroke-width='1.8' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}

/* hero */
.hero{position:relative;overflow:hidden;padding:84px 0 96px;background:radial-gradient(900px 500px at 80% 10%,rgba(99,102,241,.18),transparent 60%),radial-gradient(700px 400px at 10% 90%,rgba(34,211,238,.1),transparent 60%)}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:48px 48px;opacity:.35;mask-image:radial-gradient(ellipse at 50% 40%,#000 20%,transparent 75%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(2.2rem,4.4vw,3.4rem);font-weight:700}
.hero h1 em{white-space:nowrap}
.h1-sub{display:block;margin-top:20px;font-size:clamp(1.05rem,1.7vw,1.4rem);font-weight:500;letter-spacing:-.01em;line-height:1.35;color:var(--muted)}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin:24px 0 32px;font-size:1.12rem;color:var(--muted);max-width:56ch}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:36px;font-size:.78rem}
.chips li{padding:6px 12px;border:1px solid var(--line);border-radius:99px;color:var(--muted);background:rgba(14,23,41,.6)}
.stack-svg{width:100%;height:auto;max-width:480px;margin-left:auto;display:block;filter:drop-shadow(0 0 40px rgba(34,211,238,.18))}
.hero-art{position:relative;width:100%;max-width:480px;margin-left:auto}
.hero3d{display:block;width:100%;aspect-ratio:480/440;touch-action:pan-y;cursor:grab}
.hero3d.drag{cursor:grabbing}
.info3d{position:absolute;left:0;bottom:6px;max-width:64%;padding:12px 14px;background:rgba(14,23,41,.88);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px;backdrop-filter:blur(6px);opacity:0;transform:translateY(8px);transition:.3s;pointer-events:none}
.info3d.show{opacity:1;transform:none}
.info3d h4{font:500 .8rem "JetBrains Mono",monospace;color:var(--accent);letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.info3d p{font-size:.85rem;color:var(--muted);line-height:1.45}
.has3d .stack-svg{display:none}
.lbl3d{position:absolute;right:0;transform:translateY(-50%);padding-left:30px;font:500 11px/1 "JetBrains Mono",monospace;letter-spacing:.08em;color:#7dd3fc;background:none;border:0;cursor:pointer;transition:color .2s}
.lbl3d:hover,.lbl3d.on{color:#fff}
.lbl3d.on::before{border-top-style:solid;border-top-color:var(--accent)}
.lbl3d::before{content:"";position:absolute;left:0;top:50%;width:22px;border-top:1px dashed rgba(34,211,238,.5)}
.axis{animation:flow 2.5s linear infinite}
.layer{animation:float 5s ease-in-out infinite;animation-delay:var(--d)}
.layer.ia{filter:drop-shadow(0 0 14px rgba(34,211,238,.45))}
.n{animation:pulse 2.4s ease-in-out infinite}
.n:nth-child(2n){animation-delay:.6s}.n:nth-child(3n){animation-delay:1.2s}
@keyframes flow{to{stroke-dashoffset:-56}}
@keyframes pulse{50%{opacity:.3}}
@keyframes float{50%{transform:translateY(-6px)}}

/* pillars */
.pillars{background:var(--bg2);border-block:1px solid var(--line)}
.pillars-in{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.pillars-in>div{padding:32px 28px;border-left:1px solid var(--line)}
.pillars-in>div:first-child{border-left:0;padding-left:0}
.pillars h3{font-size:1.15rem;margin-bottom:8px}
.pillars p{color:var(--muted);font-size:.95rem}

/* sections */
.sec{padding:104px 0}
.sec-dark{background:var(--bg2);border-block:1px solid var(--line)}
.sec-alt{background:var(--light);color:var(--ink)}
.sec-alt .eyebrow{color:#0e7490}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head.left{margin-bottom:28px}
.sec-head h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
.sub{margin-top:16px;color:var(--muted);font-size:1.05rem}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.25s}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5)}
.card h3{font-size:1.1rem;margin:18px 0 8px}
.card p{color:var(--muted);font-size:.93rem}
.ico{width:46px;height:46px;border-radius:12px;background:rgba(34,211,238,.1);display:grid;place-items:center}
.ico svg{width:24px;height:24px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card-accent{background:linear-gradient(160deg,rgba(34,211,238,.14),rgba(99,102,241,.16));border-color:rgba(34,211,238,.35)}
.more{display:inline-block;margin-top:14px;color:var(--accent);font-weight:600;font-size:.92rem}

/* AI */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.ai-item{background:var(--bg2);padding:32px 28px;transition:background .25s}
.ai-item:hover{background:var(--panel)}
.ai-item.wide{grid-column:span 2}
.ai-item span{font-size:.75rem;color:var(--accent);letter-spacing:.1em}
.ai-item h3{font-size:1.2rem;margin:10px 0 8px}
.ai-item p{color:var(--muted);font-size:.95rem}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.check li{position:relative;padding:10px 0 10px 32px;border-bottom:1px solid var(--line);color:var(--text)}
.check li::before{content:"";position:absolute;left:0;top:16px;width:14px;height:8px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.certs{display:grid;gap:12px}
.cert{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px}
.cert b{font-family:"Space Grotesk";font-size:1.25rem}
.cert span{color:var(--muted);font-size:.88rem;text-align:right}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;counter-reset:s}
.steps li{border-top:3px solid var(--ink);padding-top:18px}
.steps span{color:#0e7490;font-size:.85rem}
.steps h3{font-size:1.2rem;margin:8px 0}
.steps p{color:var(--ink-muted);font-size:.93rem}

/* contact */
.contact{background:radial-gradient(700px 400px at 90% 100%,rgba(99,102,241,.18),transparent 60%)}
.info li{padding:16px 0;border-bottom:1px solid var(--line);display:flex;gap:20px;color:var(--muted)}
.info span{min-width:80px;color:var(--accent);font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;padding-top:3px}
.info a{color:var(--text)}.info a:hover{color:var(--accent)}
.form{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:30px;display:grid;gap:16px}
.form label{display:grid;gap:6px;font-size:.85rem;color:var(--muted)}
.form input,.form select,.form textarea{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:12px 14px;color:var(--text);font:1rem Inter,sans-serif}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form .invalid{border-color:#f87171}
.note{min-height:1.4em;font-size:.9rem;color:var(--accent)}

/* footer */
.foot{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:.88rem}
.foot-in{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.foot b{color:var(--text)}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:1000px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .hero-in,.split{grid-template-columns:1fr}
  .hero-art{max-width:380px;order:-1;margin:0 auto}
  .stack-svg{margin:auto}
  .split{gap:40px}
}
@media(max-width:760px){
  .burger{display:block}
  .menu{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px 20px 20px;display:none}
  .menu.open{display:flex}
  .menu a{padding:12px 0}
  .menu .btn{text-align:center;margin-top:8px}
  .sec{padding:72px 0}
  .hero{padding:48px 0 64px}
  .cards,.steps,.pillars-in,.ai-grid{grid-template-columns:1fr}
  .ai-item.wide{grid-column:auto}
  .pillars-in>div{border-left:0;border-top:1px solid var(--line);padding-left:0}
  .pillars-in>div:first-child{border-top:0}
  .cert{flex-direction:column;align-items:flex-start;gap:4px}.cert span{text-align:left}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}


.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}