:root{
  --bg: #0b1220;
  --card: #0f172a;
  --muted: #94a3b8;
  --text: #e2e8f0;
  --brand: #22d3ee;
  --brand-2: #38bdf8;
  --accent: #34d399;
  --danger: #f472b6;
  --ring: rgba(34,211,238,.25);
  --maxw: 1200px;
  --radius: 18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 20% -10%, rgba(56,189,248,.25), transparent),
              radial-gradient(900px 700px at 120% 0%, rgba(34,211,238,.15), transparent),
              var(--bg);
  color:var(--text);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin-inline:auto;padding:0 20px}

header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(150%) blur(10px);
  background:rgba(11,18,32,.7);
  border-bottom:1px solid rgba(148,163,184,.12);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:21px 0;
}
.logo{display:flex;align-items:center;gap:10px}
.logo img{width:46px;height:46px}
.logo .brand{font-weight:1000;letter-spacing:.3px}
nav ul{display:flex;gap:21px;list-style:none;margin:0;padding:0}
nav a{padding:8px 10px;border-radius:10px}
nav a:hover{background:rgba(148,163,184,.12)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 18px;border-radius:14px;
  border:1px solid rgba(148,163,184,.2);
  font-weight:700;letter-spacing:.2px;cursor:pointer;
  transition:transform .05s ease, box-shadow .2s ease, background .2s ease;
}
.btn.primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#05131a;border-color:transparent;box-shadow:0 10px 30px -10px var(--ring)}
.btn.primary:hover{transform:translateY(-1px)}
.btn.ghost{background:transparent}
.btn.ghost:hover{background:rgba(148,163,184,.12)}

.hero{
  padding:64px 0 24px;
}
.hero .wrap{
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.badge{
  font-size:13px;color:#0c1523;background:linear-gradient(90deg,#a7f3d0,#67e8f9);
  border-radius:999px;padding:6px 10px;font-weight:700;
}
.kicker{color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.15em;font-size:12px}
h1{font-size:clamp(28px,3.6vw,48px);line-height:1.1;margin:10px 0 8px}
.lead{font-size:clamp(16px,1.8vw,18px);color:var(--muted);max-width:60ch}
.hero .cta{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}

.card{
  background:linear-gradient(180deg, rgba(15,23,42,.7), rgba(15,23,42,.55));
  border:1px solid rgba(148,163,184,.15);
  border-radius:var(--radius);
  box-shadow:0 10px 30px -20px rgba(2,6,23,.7);
}

.figure{
  aspect-ratio:4/3;border-radius:var(--radius);
  border:1px dashed rgba(148,163,184,.25);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--muted)
}

.section{padding:56px 0}
.section h2{font-size:28px;margin:0 0 10px}
.section p.section-lead{color:var(--muted);margin-top:0}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}

.feature{
  padding:18px;border-radius:16px;border:1px solid rgba(148,163,184,.15);
  background:linear-gradient(180deg, rgba(2,6,23,.3), rgba(2,6,23,.15));
}
.feature h3{margin:10px 0 6px;font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:14px}
.icon{width:28px;height:28px;display:inline-block}

.steps .step{padding:18px;border-radius:16px;border:1px solid rgba(148,163,184,.15)}
.steps .num{display:inline-flex;width:28px;height:28px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#08202b;font-weight:900;margin-right:10px}

.pricing .card{padding:20px}
.price{font-size:28px;font-weight:900;margin:0}
ul.clean{list-style:none;padding:0;margin:12px 0 0}
ul.clean li{display:flex;gap:8px;align-items:flex-start;margin:8px 0;color:var(--text)}
ul.clean li span{color:var(--muted)}

.faq details{padding:16px 18px;border-radius:12px;border:1px solid rgba(148,163,184,.18);margin:10px 0;background:rgba(2,6,23,.25)}
.faq summary{cursor:pointer;font-weight:700}
.faq p{margin:8px 0 0;color:var(--muted)}

.contact .card{padding:20px}
input, textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  border:1px solid rgba(148,163,184,.18);background:#0b1527;color:var(--text);
  outline:none;box-shadow:0 0 0 0 var(--ring);
}
input:focus, textarea:focus{box-shadow:0 0 0 6px var(--ring);border-color:transparent}
label{font-weight:700;font-size:13px;color:var(--muted);display:block;margin:10px 0 6px}

footer{padding:30px 0;color:var(--muted);border-top:1px solid rgba(148,163,184,.15);margin-top:40px}
footer .row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a:hover{text-decoration:underline}

.notice{
  margin-top:8px;color:#9fb9ff;font-size:12px
}

/* Responsive */
@media (max-width: 980px){
  .hero .wrap{grid-template-columns:1fr;gap:20px}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
}

@media (max-width: 640px){
  nav ul{display:none}
  .nav .mobile{display:flex;gap:10px;align-items:center}
  .grid-4, .grid-3{grid-template-columns:1fr}
}