:root{
  --bg:#06070f; --bg2:#0b0d1a; --card:#11142a; --line:#1f2440;
  --txt:#e9ecff; --muted:#8b91b8; --p1:#4f7cff; --p2:#22d3ee; --p3:#a855f7;
  --r:18px; --sans:'Inter',sans-serif; --display:'Space Grotesk',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--txt);line-height:1.65;overflow-x:hidden}
.container{width:90%;max-width:1180px;margin:0 auto}
h1,h2,h3,h4,.brand{font-family:var(--display);font-weight:700}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
section{padding:100px 0}
.kicker{display:inline-block;color:var(--p2);font-weight:600;text-transform:uppercase;letter-spacing:3px;font-size:.78rem;margin-bottom:12px}
.sec-head{text-align:center;max-width:640px;margin:0 auto 54px}
.sec-head h2{font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.08;margin-bottom:14px}
.sec-head p{color:var(--muted)}
.grad{background:linear-gradient(100deg,var(--p1),var(--p2),var(--p3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 28px;border-radius:12px;font-family:var(--display);font-weight:600;font-size:.95rem;cursor:pointer;border:none;transition:.25s}
.btn-primary{background:linear-gradient(100deg,var(--p1),var(--p3));color:#fff}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(79,124,255,.4)}
.btn-ghost{background:transparent;color:var(--txt);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--p2);transform:translateY(-3px)}

#navbar{position:fixed;top:0;width:100%;z-index:1000;padding:18px 0;transition:.3s}
#navbar.scrolled{background:rgba(6,7,15,.85);backdrop-filter:blur(12px);padding:12px 0;border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.brand{font-size:1.4rem;display:flex;align-items:center;gap:9px}
.brand i{color:var(--p1)}
.brand span{color:var(--p2)}
.nav-menu{display:flex;align-items:center;gap:6px;list-style:none}
.nav-link{padding:8px 14px;border-radius:8px;color:var(--muted);font-weight:500;font-size:.95rem;transition:.2s}
.nav-link:hover,.nav-link.active{color:var(--txt)}
.nav-cta{background:linear-gradient(100deg,var(--p1),var(--p3));color:#fff!important;font-weight:600}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer}
.hamburger span{width:25px;height:2px;background:var(--txt);transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{position:relative;padding:180px 0 100px;text-align:center;overflow:hidden}
.neural-bg{position:absolute;inset:0;background-image:radial-gradient(var(--line) 1.4px,transparent 1.4px);background-size:34px 34px;opacity:.4;mask-image:radial-gradient(ellipse 70% 70% at 50% 30%,#000,transparent)}
.glow-orb{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(79,124,255,.3),transparent 60%);top:-120px;left:50%;transform:translateX(-50%);filter:blur(40px)}
.hero-inner{position:relative;z-index:2}
.pill{display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);padding:8px 18px;border-radius:50px;font-size:.85rem;color:var(--muted);margin-bottom:26px}
.live-dot{width:9px;height:9px;border-radius:50%;background:var(--p2);box-shadow:0 0 0 0 var(--p2);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px transparent}100%{box-shadow:0 0 0 0 transparent}}
.hero h1{font-size:clamp(2.6rem,7vw,5rem);line-height:1.02;margin-bottom:20px}
.hero>.hero-inner>p{color:var(--muted);font-size:1.16rem;max-width:600px;margin:0 auto 32px}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:50px}
.hero-logos span{display:block;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:2px;margin-bottom:16px}
.logos{display:flex;justify-content:center;gap:36px;font-size:1.8rem;color:var(--muted);opacity:.6}

/* platform */
.platform{background:var(--bg2)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px 28px;transition:.3s}
.feat:hover{transform:translateY(-6px);border-color:var(--p1)}
.fi{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(79,124,255,.2),rgba(168,85,247,.2));color:var(--p2);display:grid;place-items:center;font-size:1.3rem;margin-bottom:18px}
.feat h3{font-size:1.3rem;margin-bottom:10px}
.feat p{color:var(--muted);font-size:.95rem}

/* metrics */
.metrics{background:var(--bg);padding:70px 0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stats .count{font-family:var(--display);font-size:2.8rem;font-weight:700;background:linear-gradient(100deg,var(--p1),var(--p2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:block}
.stats small{color:var(--muted);font-size:.85rem}

/* solutions */
.solutions{background:var(--bg2)}
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.3s}
.sol:hover{transform:translateY(-6px);border-color:var(--p3)}
.sol img{height:200px;width:100%;object-fit:cover}
.sol-b{padding:26px}
.sol-tag{display:inline-block;background:rgba(34,211,238,.12);color:var(--p2);font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:1px;padding:4px 12px;border-radius:50px;margin-bottom:12px}
.sol-b h3{font-size:1.4rem;margin-bottom:10px}
.sol-b p{color:var(--muted);font-size:.95rem}

/* research */
.research{background:var(--bg)}
.research-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.research-text h2{font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.08;margin-bottom:16px}
.research-text>p{color:var(--muted);font-size:1.06rem;margin-bottom:24px}
.res-list{list-style:none;margin-bottom:28px}
.res-list li{display:flex;align-items:center;gap:12px;padding:8px 0;font-weight:500}
.res-list i{width:26px;height:26px;border-radius:50%;background:rgba(79,124,255,.15);color:var(--p1);display:grid;place-items:center;font-size:.72rem}
.research-art{display:flex;justify-content:center}
.brain-viz{position:relative;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(168,85,247,.15),transparent 70%);display:grid;place-items:center;border:1px solid var(--line)}
.brain-viz i{font-size:6rem;background:linear-gradient(135deg,var(--p1),var(--p3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;z-index:2}
.brain-viz::before{content:'';position:absolute;width:230px;height:230px;border-radius:50%;border:1px dashed var(--line);animation:spin 18s linear infinite}
.node{position:absolute;width:14px;height:14px;border-radius:50%;background:var(--p2);box-shadow:0 0 14px var(--p2)}
.node.n1{top:6%;left:48%}.node.n2{top:30%;right:6%}.node.n3{bottom:14%;right:18%}.node.n4{bottom:6%;left:40%}.node.n5{bottom:30%;left:6%}.node.n6{top:20%;left:14%}
.node{animation:flicker 3s infinite}
.node.n2{animation-delay:.5s}.node.n3{animation-delay:1s}.node.n4{animation-delay:1.5s}.node.n5{animation-delay:2s}.node.n6{animation-delay:2.5s}
@keyframes flicker{50%{opacity:.3;transform:scale(.7)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* contact */
.contact{background:var(--bg2)}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center;background:linear-gradient(135deg,#12152e,#0b0d1a);border:1px solid var(--line);border-radius:24px;padding:54px}
.contact-text h2{font-size:clamp(1.9rem,4vw,2.7rem);line-height:1.08;margin-bottom:14px}
.contact-text p{color:var(--muted);font-size:1.06rem}
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:14px 16px;background:var(--bg);border:1px solid var(--line);border-radius:12px;color:var(--txt);font-family:var(--sans);font-size:.95rem;resize:none}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--p1)}
.form-submit{justify-content:center}

/* footer */
.footer{background:var(--bg);padding:64px 0 26px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:42px}
.footer .brand{margin-bottom:14px}
.footer-grid>div>p{color:var(--muted);font-size:.92rem;margin-bottom:16px}
.footer h4{margin-bottom:16px;font-size:1rem}
.footer ul{list-style:none}
.footer ul li{margin-bottom:10px}
.footer ul li a{color:var(--muted);font-size:.92rem;transition:.2s}
.footer ul li a:hover{color:var(--p2)}
.socials{display:flex;gap:10px}
.socials a{width:38px;height:38px;border-radius:10px;background:var(--card);border:1px solid var(--line);display:grid;place-items:center;transition:.25s}
.socials a:hover{background:var(--p1);transform:translateY(-3px)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:.86rem;flex-wrap:wrap;gap:10px}
.footer-bottom a{color:var(--p2);font-weight:600}

.reveal{opacity:0;transform:translateY(32px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.reveal.visible{opacity:1;transform:none}
.back-to-top{position:fixed;bottom:28px;right:28px;width:48px;height:48px;border-radius:12px;background:linear-gradient(100deg,var(--p1),var(--p3));color:#fff;border:none;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:900}
.back-to-top.visible{opacity:1;pointer-events:auto}
.back-to-top:hover{transform:translateY(-4px)}

@media(max-width:980px){
  .feat-grid,.sol-grid{grid-template-columns:repeat(2,1fr)}
  .research-inner{grid-template-columns:1fr}.research-art{order:-1}
  .contact-inner{grid-template-columns:1fr;padding:36px}
}
@media(max-width:640px){
  .nav-menu{position:fixed;top:0;right:-100%;height:100vh;width:74%;background:var(--bg2);flex-direction:column;justify-content:center;gap:16px;transition:.35s}
  .nav-menu.open{right:0}.hamburger{display:flex;z-index:1001}
  .feat-grid,.sol-grid,.stats,.footer-grid,.contact-form .row{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}.logos{gap:22px;font-size:1.4rem}section{padding:72px 0}
}