:root{
  --bg:#0b0f14;
  --bg-soft:#111823;
  --card:#141c28;
  --line:#1f2b3a;
  --text:#e7edf5;
  --muted:#93a2b5;
  --brand:#3ea6ff;
  --brand-2:#6ce5b1;
  --up:#33d18f;
  --down:#ff5a6a;
  --gold:#ffcf4d;
  --radius:16px;
  --maxw:1080px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--muted);font-weight:600}
.nav-links a:hover{color:var(--text);text-decoration:none}

/* buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:12px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:.15s}
.btn-primary{background:linear-gradient(135deg,var(--brand),#2b7fd6);color:#04121f}
.btn-primary:hover{filter:brightness(1.08);text-decoration:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);text-decoration:none}

/* hero */
.hero{padding:88px 0 64px;text-align:center;background:
  radial-gradient(1200px 400px at 50% -10%,rgba(62,166,255,.15),transparent 60%),
  radial-gradient(900px 400px at 80% 10%,rgba(108,229,177,.10),transparent 55%)}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}
.hero p.lead{font-size:clamp(16px,2.2vw,20px);color:var(--muted);max-width:640px;margin:0 auto 28px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.tag{display:inline-block;font-size:13px;font-weight:700;color:var(--brand-2);background:rgba(108,229,177,.10);border:1px solid rgba(108,229,177,.25);padding:6px 12px;border-radius:999px;margin-bottom:22px}

/* sections */
.section{padding:64px 0}
.section h2{font-size:clamp(24px,3.5vw,36px);margin:0 0 12px;letter-spacing:-.01em}
.section .sub{color:var(--muted);max-width:640px;margin:0 0 36px}
.center{text-align:center}
.center .sub{margin-left:auto;margin-right:auto}

/* grid cards */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card h3{margin:0 0 8px;font-size:19px}
.card p{color:var(--muted);margin:0}
.card .ico{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;background:rgba(62,166,255,.12);border:1px solid rgba(62,166,255,.2);margin-bottom:14px}

/* pricing */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.price{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column}
.price.popular{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand) inset,0 20px 60px -30px rgba(62,166,255,.5)}
.price .name{font-weight:700;color:var(--muted)}
.price .amount{font-size:40px;font-weight:800;margin:8px 0 2px}
.price .amount span{font-size:15px;color:var(--muted);font-weight:600}
.price ul{list-style:none;padding:0;margin:18px 0 24px;flex:1}
.price li{padding:7px 0;border-bottom:1px dashed var(--line);color:var(--muted)}
.price li b{color:var(--text)}
.badge{align-self:flex-start;font-size:12px;font-weight:800;color:#04121f;background:var(--brand);padding:4px 10px;border-radius:999px;margin-bottom:10px}

/* feature list with markers */
.marker{display:inline-flex;align-items:center;gap:8px;font-weight:700}
.arrow-up{color:var(--up)} .arrow-dn{color:var(--down)} .dot-g{color:var(--gold)}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700}
.faq p{color:var(--muted)}

/* disclaimer / footer */
.disclaimer{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px}
.footer{padding:40px 0;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}
.footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer a{color:var(--muted)}

@media(max-width:820px){
  .grid-3,.grid-2,.pricing{grid-template-columns:1fr}
  .nav-links{gap:14px}
}