:root{
  --bg:#0b1220;
  --fg:#e7edf7;
  --muted:#a9b7cf;
  --card:#111a2d;
  --line:#22304c;
  --accent:#4aa3ff;
  --accent2:#22c55e;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--fg);background:#060a14}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 18px}

.top{position:sticky;top:0;background:rgba(6,10,20,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:10}
.top__inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}
.brand{display:flex;align-items:center;gap:10px}
.brand__mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#7c3aed);display:flex;align-items:center;justify-content:center;font-weight:700}
.brand__name{font-weight:700;letter-spacing:.2px}
.brand__tag{font-size:12px;color:var(--muted)}
.nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.btn{display:inline-block;background:var(--accent);color:#05101f;padding:12px 16px;border-radius:12px;font-weight:650;border:0;cursor:pointer}
.btn:hover{filter:brightness(1.05);text-decoration:none}
.btn--ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}
.btn--small{padding:9px 12px;border-radius:10px}

.hero{background:radial-gradient(1000px 500px at 20% 20%, rgba(74,163,255,.25), transparent 60%),
      radial-gradient(900px 450px at 70% 30%, rgba(124,58,237,.18), transparent 60%),
      #060a14;border-bottom:1px solid var(--line)}
.hero__inner{padding:64px 0 46px}
h1{font-size:42px;line-height:1.08;margin:0 0 14px}
.lead{font-size:18px;color:var(--muted);max-width:820px;margin:0 0 18px}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0 16px}
.note{font-size:13px;color:var(--muted);border:1px dashed var(--line);border-radius:14px;padding:12px 14px;max-width:900px}

.section{padding:54px 0;background:#060a14}
.section--alt{background:#070d1b;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:28px;margin:0 0 18px}
h3{margin:0 0 8px;font-size:18px}
.small{font-size:13px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.columns{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}

.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}
.card p{margin:0;color:var(--muted);line-height:1.55}
.card ul{margin:10px 0 0 18px;color:var(--muted);line-height:1.6}
.disclaimer{margin-top:14px;color:var(--muted);border-left:3px solid var(--accent2);padding:10px 12px;background:rgba(34,197,94,.06);border-radius:12px}

.contact{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.form label{display:block;margin:10px 0 0;font-size:13px;color:var(--muted)}
.form input,.form textarea{
  width:100%;margin-top:6px;background:#0a1224;border:1px solid var(--line);
  border-radius:12px;color:var(--fg);padding:10px 12px;outline:none
}
.form input:focus,.form textarea:focus{border-color:rgba(74,163,255,.7)}
.form button{margin-top:12px;width:100%}

.footer{border-top:1px solid var(--line);background:#060a14}
.footer__inner{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:16px 0;color:var(--muted);font-size:13px}
.footer__links{display:flex;gap:12px}

@media (max-width: 860px){
  h1{font-size:34px}
  .grid{grid-template-columns:1fr}
  .columns{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
}