:root{
  --bg:#06101d;
  --bg-2:#091421;
  --panel:rgba(12,24,40,.72);
  --line:rgba(255,255,255,.10);
  --text:#f4f7fb;
  --muted:#9ca9ba;
  --blue:#168bff;
  --blue-2:#0a5bff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(circle at 72% 42%, rgba(22,139,255,.11), transparent 28%),
    linear-gradient(135deg,var(--bg),#050a12 58%,#03070c);
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  overflow-x:hidden;
}
body::before{content:"";position:fixed;inset:0;background:linear-gradient(rgba(255,255,255,.016),rgba(255,255,255,0));pointer-events:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.grid{position:fixed;inset:0;pointer-events:none;opacity:.14;background-image:linear-gradient(rgba(22,139,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(22,139,255,.13) 1px,transparent 1px);background-size:72px 72px;mask-image:radial-gradient(circle at 72% 48%,black,transparent 58%)}
.ambient{position:fixed;border-radius:50%;filter:blur(90px);pointer-events:none;opacity:.18}
.ambient-one{width:420px;height:420px;background:var(--blue);right:-140px;top:8%}
.ambient-two{width:260px;height:260px;background:#1d4ed8;left:-100px;bottom:-80px}
.shell{min-height:100vh;display:flex;flex-direction:column;max-width:1600px;margin:0 auto;padding:30px 56px 26px;position:relative;z-index:1}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand img{width:min(360px,42vw);height:auto;display:block}
.topline{font-size:12px;letter-spacing:.2em;color:#8d99a9;white-space:nowrap}
.hero{flex:1;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(380px,.98fr);align-items:center;gap:48px;padding:54px 0 30px}
.hero-copy{max-width:720px}
.eyebrow{font-size:14px;letter-spacing:.45em;color:#d1d6de;margin-bottom:20px}
h1{font-size:clamp(64px,7vw,118px);line-height:.92;margin:0 0 28px;font-weight:400;letter-spacing:-.055em}
h1 span{color:var(--blue);font-weight:500}
.lead{font-size:clamp(20px,2vw,28px);line-height:1.4;margin:0 0 8px;color:#e8edf5;max-width:620px}
.sublead{font-size:18px;line-height:1.6;color:var(--muted);margin:0 0 34px;max-width:650px}
.notify{display:flex;max-width:590px;border:1px solid rgba(255,255,255,.16);background:rgba(6,14,24,.58);border-radius:10px;overflow:hidden;backdrop-filter:blur(14px)}
.notify input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:white;padding:18px 20px;font-size:16px}
.notify input::placeholder{color:#7f8a99}
.notify button{border:0;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:white;padding:0 28px;font-size:16px;font-weight:650;cursor:pointer;transition:transform .18s ease,filter .18s ease}
.notify button:hover{filter:brightness(1.08)}
.notify button:active{transform:scale(.98)}
.form-note{font-size:13px;color:#7f8a99;margin-top:10px;min-height:20px}
.form-note.success{color:#70b5ff}
.form-note.error{color:#ff8a8a}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px}
.feature{display:flex;gap:12px;align-items:flex-start;padding-top:18px;border-top:1px solid var(--line)}
.feature-icon{width:36px;height:36px;display:grid;place-items:center;color:var(--blue);font-size:26px}
.feature strong{display:block;font-size:15px;margin-bottom:4px}
.feature small{display:block;color:#7f8a99;line-height:1.4}
.cube-mini{position:relative;border:1px solid var(--blue);transform:rotate(30deg);width:24px;height:24px;margin:6px}
.hero-art{min-height:570px;position:relative;display:grid;place-items:center}
.core-card{width:min(520px,90%);aspect-ratio:1/1;position:relative;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle,rgba(22,139,255,.14),rgba(5,12,22,.02) 56%,transparent 70%)}
.core-frame{width:64%;aspect-ratio:1;position:relative;display:grid;place-items:center;filter:drop-shadow(0 0 28px rgba(22,139,255,.34))}
.core-frame::before,.core-frame::after{content:"";position:absolute;inset:8%;border:1px solid rgba(255,255,255,.28);transform:rotate(30deg);clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%)}
.core-frame::after{inset:18%;border-color:rgba(22,139,255,.6)}
.core-cube{position:relative;width:112px;height:98px;transform:translateY(4px);filter:drop-shadow(0 0 22px rgba(22,139,255,.9))}
.face{position:absolute;background:linear-gradient(135deg,#2b96ff,#0b5cff);border:1px solid rgba(255,255,255,.66)}
.face.top{width:80px;height:46px;left:16px;top:0;clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
.face.left{width:56px;height:66px;left:0;top:34px;clip-path:polygon(100% 0,100% 100%,0 74%,0 26%);background:linear-gradient(135deg,#1d73e8,#0b4fc4)}
.face.right{width:56px;height:66px;right:0;top:34px;clip-path:polygon(0 0,100% 26%,100% 74%,0 100%);background:linear-gradient(135deg,#0d68e8,#147eff)}
.core-caption{position:absolute;bottom:4%;font-size:12px;letter-spacing:.34em;color:#66778b}
.orbital{position:absolute;border:1px solid rgba(22,139,255,.24);border-radius:50%;pointer-events:none}
.orbital-a{width:80%;aspect-ratio:1;animation:spin 20s linear infinite}
.orbital-b{width:60%;aspect-ratio:1;border-style:dashed;animation:spinReverse 28s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spinReverse{to{transform:rotate(-360deg)}}
footer{display:flex;justify-content:space-between;align-items:center;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:#6f7b89}
.footer-tag{letter-spacing:.18em}
@media (max-width:980px){
  .shell{padding:24px}
  .topline{display:none}
  .brand img{width:300px;max-width:75vw}
  .hero{grid-template-columns:1fr;padding-top:34px;gap:10px}
  .hero-art{order:-1;min-height:340px}
  .core-card{width:330px}
  h1{font-size:clamp(56px,16vw,92px)}
}
@media (max-width:640px){
  .shell{padding:20px 18px}
  .hero{padding-top:26px}
  .hero-art{min-height:260px}
  .core-card{width:260px}
  .core-cube{transform:scale(.78)}
  .eyebrow{font-size:11px;letter-spacing:.35em}
  .lead{font-size:19px}.sublead{font-size:15px}
  .notify{flex-direction:column;border-radius:12px}
  .notify button{padding:16px}
  .features{grid-template-columns:1fr;margin-top:34px}
  footer{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){.orbital{animation:none}}