:root{
  --bg:#0a0c11; --bg-2:#0f1219; --elev:#141822; --elev-2:#1a1f2b;
  --line:#232a3a; --line-2:#2e3648;
  --txt:#e9edf6; --muted:#95a0b8; --dim:#6a7590;
  --acc:#ff9d3f; --acc-2:#ffc879; --blue:#7aa2ff; --ok:#4fd18b;
  --r:14px; --r-sm:10px; --r-lg:22px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --maxw:1180px;
  --ff:"Inter","Segoe UI",Roboto,"Helvetica Neue",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--ff);background:var(--bg);color:var(--txt);
  -webkit-font-smoothing:antialiased;line-height:1.55;
  background-image:
    radial-gradient(900px 480px at 12% -8%, rgba(255,157,63,.13), transparent 60%),
    radial-gradient(760px 420px at 92% 4%, rgba(122,162,255,.10), transparent 62%);
  background-repeat:no-repeat;
}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0 0 .4em;line-height:1.15;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.06rem}
p{margin:0 0 1em}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.center{text-align:center}
section{padding:72px 0}
.sec-head{max-width:640px;margin-bottom:34px}
.eyebrow{
  display:inline-block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--acc);border:1px solid rgba(255,157,63,.32);background:rgba(255,157,63,.08);
  padding:5px 11px;border-radius:999px;margin-bottom:14px;
}
/* header */
.hdr{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(10,12,17,.78);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:22px;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em;font-size:1.3rem}
.logo i{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-style:normal;
  font-size:.95rem;color:#171106;background:linear-gradient(140deg,var(--acc-2),var(--acc));font-weight:900}
.nav{display:flex;gap:6px;margin-left:auto;align-items:center}
.nav a{padding:9px 13px;border-radius:var(--r-sm);color:var(--muted);font-size:.93rem;transition:.16s}
.nav a:hover{color:var(--txt);background:var(--elev)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--txt);
  border-radius:var(--r-sm);padding:8px 11px;font-size:1rem;cursor:pointer}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  font:inherit;font-weight:600;font-size:.95rem;padding:12px 20px;border-radius:var(--r-sm);
  border:1px solid transparent;transition:.16s;white-space:nowrap}
.btn-p{background:linear-gradient(140deg,var(--acc-2),var(--acc));color:#1a1204;
  box-shadow:0 10px 26px rgba(255,157,63,.24)}
.btn-p:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn-g{background:var(--elev);color:var(--txt);border-color:var(--line-2)}
.btn-g:hover{background:var(--elev-2);border-color:var(--acc)}
.btn-s{background:none;color:var(--muted);border-color:var(--line)}
.btn-s:hover{color:var(--txt);border-color:var(--line-2)}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}
.btn-full{width:100%}
/* footer */
.ftr{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:.9rem}
.ftr-in{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.ftr a:hover{color:var(--txt)}
@media (max-width:760px){
  section{padding:52px 0}
  .nav{display:none;position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--bg-2);border-bottom:1px solid var(--line);padding:10px;gap:2px}
  .nav.open{display:flex}
  .nav .btn{margin-top:6px}
  .burger{display:block}
}