:root{
  --bg:#0b1220;
  --card:#0f1a2e;
  --text:#e9eefb;
  --muted:#b8c2da;
  --line:rgba(255,255,255,.10);
  --accent:#8bd3ff;
  --accent2:#a6ffcb;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --radius:18px;
  --max:1120px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 20% -10%, rgba(139,211,255,.22), transparent 55%),
    radial-gradient(900px 600px at 85% 5%, rgba(166,255,203,.14), transparent 55%),
    linear-gradient(180deg, #060b16 0%, var(--bg) 100%);
  line-height:1.55;
}
a{color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
header{
  position:sticky; top:0; z-index:10;
  backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(6,11,22,.92) 0%, rgba(6,11,22,.55) 100%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:14px 0; gap:14px}
.brand{display:flex; gap:12px; align-items:center; text-decoration:none; min-width:260px}
.mark{
  width:38px;height:38px;border-radius:12px;
  background: linear-gradient(135deg, rgba(139,211,255,.85), rgba(166,255,203,.65));
  box-shadow: 0 12px 30px rgba(0,0,0,.25);
}
.brand strong{display:block;font-size:14px;letter-spacing:.2px}
.brand span{display:block;font-size:12px;color:var(--muted)}
nav ul{list-style:none;display:flex;gap:10px;margin:0;padding:0;flex-wrap:wrap}
nav a{
  font-size:13px;color:var(--muted);text-decoration:none;padding:8px 10px;border-radius:10px;
  border:1px solid transparent;
}
nav a:hover, nav a[aria-current="page"]{
  background:rgba(255,255,255,.06);color:var(--text);
  border-color:rgba(255,255,255,.08);
}
.cta{display:flex; gap:10px; align-items:center; flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.06); text-decoration:none;
  font-size:13px; color:var(--text);
}
.btn:hover{background:rgba(255,255,255,.10)}
.btn.primary{
  border:0;
  background:linear-gradient(135deg, rgba(139,211,255,.95), rgba(166,255,203,.85));
  color:#07101f;
  font-weight:650;
}
.btn.primary:hover{filter:brightness(1.05)}
.hero{padding:64px 0 28px}
.hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:24px; align-items:stretch}
.pill{
  display:inline-flex; gap:10px; align-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  padding:8px 12px;border-radius:999px;
  color:var(--muted); font-size:12px;
}
.pill b{color:var(--text)}
h1{margin:18px 0 10px;font-size:44px; line-height:1.08; letter-spacing:-.7px}
.lead{color:var(--muted);font-size:16px;max-width:62ch}
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.panel{padding:18px}
.metrics{display:grid; grid-template-columns:repeat(2, 1fr); gap:12px}
.metric{
  padding:14px;border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.metric .k{font-size:12px;color:var(--muted)}
.metric .v{font-size:18px;font-weight:750;margin-top:4px}
.section{padding:34px 0}
.section h2{margin:0 0 10px;font-size:26px;letter-spacing:-.3px}
.section p{margin:0;color:var(--muted)}
.grid-3{margin-top:16px;display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
.feature{
  padding:16px;border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.feature h3{margin:0 0 6px;font-size:15px}
.feature p{margin:0;color:var(--muted);font-size:13px}
.model{margin-top:16px;display:grid; grid-template-columns:1fr 1fr; gap:14px}
.item{
  padding:16px;border-radius:18px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
}
.item b{display:block;margin-bottom:6px}
.split{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-top:16px}
.list{margin:10px 0 0; padding-left:18px; color:var(--muted)}
.figure{overflow:hidden}
.figure img{
  width:100%; height:auto; display:block;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.10);
}
.footer{
  padding:28px 0 40px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
}
.small{font-size:12px;color:var(--muted)}
kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size:12px;
  padding:2px 6px;
  border:1px solid rgba(255,255,255,.14);
  border-bottom-color:rgba(255,255,255,.24);
  border-radius:8px;
  background:rgba(255,255,255,.05);
}
.form{margin-top:14px; display:grid; grid-template-columns:1fr 1fr; gap:12px}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
input, textarea, select{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:var(--text);
  outline:none;
}
textarea{grid-column:1/-1;min-height:130px;resize:vertical}
.form-actions{grid-column:1/-1;display:flex;gap:10px;justify-content:flex-end}
.notice{
  margin-top:12px;
  padding:12px 14px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  color:var(--muted);
}
@media (max-width: 920px){
  .hero-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .model, .split{grid-template-columns:1fr}
  .brand{min-width:auto}
  .form{grid-template-columns:1fr}
}