:root{
  --bg:#0b1220;
  --panel:#0f1b33;
  --text:#e7eefc;
  --muted:#b8c6e6;
  --brand:#5eead4;
  --brand2:#60a5fa;
  --danger:#fb7185;
  --ok:#34d399;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --radius:18px;
  --max:1100px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  background:
    radial-gradient(900px 600px at 18% 12%, rgba(96,165,250,.28), transparent 60%),
    radial-gradient(900px 600px at 80% 30%, rgba(94,234,212,.20), transparent 60%),
    linear-gradient(180deg, var(--bg), #060a14 70%);
  color:var(--text);
}

a{color:inherit;text-decoration:none}
a:hover{opacity:.92}
p{line-height:1.6;color:var(--muted)}
small{color:var(--muted)}

.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.header{
  position:sticky;top:0;z-index:20;
  backdrop-filter:saturate(1.5) blur(10px);
  background:rgba(6,10,20,.55);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px}
.logo{
  width:34px;height:34px;border-radius:12px;
  background:linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow:0 10px 30px rgba(94,234,212,.18);
}
.nav{display:flex;align-items:center;gap:18px}
.nav a{color:var(--muted);font-weight:600;font-size:14px;padding:8px 10px;border-radius:12px}
.nav a.active,.nav a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.menu-btn{display:none;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:var(--text);
  border-radius:12px;padding:9px 10px;font-weight:700}

.hero{padding:64px 0 36px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}
.h-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:999px;
  background:rgba(94,234,212,.12);
  border:1px solid rgba(94,234,212,.22);
  color:var(--text);font-size:13px;font-weight:700
}
.h1{font-size:46px;line-height:1.06;margin:14px 0 14px;letter-spacing:-.6px}
.lead{font-size:18px;margin:0 0 18px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 14px;border-radius:14px;font-weight:800;font-size:14px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
}
.btn.primary{
  border:none;
  background:linear-gradient(135deg, var(--brand), var(--brand2));
  color:#07121e;
  box-shadow:0 12px 40px rgba(96,165,250,.16);
}
.btn.small{padding:10px 12px;font-weight:800}
.card{
  background:rgba(15,27,51,.72);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.hero-card{padding:18px}
.device{
  border-radius:22px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.25);
  overflow:hidden;
}
.device img{display:block;width:100%;height:auto}

.section{padding:34px 0}
.section h2{margin:0 0 10px;font-size:28px;letter-spacing:-.2px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.feature{padding:16px}
.feature h3{margin:0 0 8px;font-size:16px}
.kicker{display:flex;align-items:center;gap:10px;margin-bottom:8px;color:var(--text);font-weight:800}
.badge{
  font-size:12px;font-weight:800;color:#06111d;
  background:rgba(94,234,212,.9);
  padding:4px 8px;border-radius:999px;
}
.list{margin:12px 0 0;padding-left:18px;color:var(--muted);line-height:1.7}

.how{display:grid;grid-template-columns:1.1fr .9fr;gap:14px;margin-top:14px}
.steps{padding:16px}
.step{display:flex;gap:12px;align-items:flex-start;padding:12px;border-radius:16px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03)}
.step + .step{margin-top:10px}
.num{
  width:34px;height:34px;border-radius:12px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#06111d;
  background:linear-gradient(135deg, var(--brand), var(--brand2));
}
.step strong{display:block;margin-bottom:4px}
.step span{color:var(--muted);font-size:14px;line-height:1.5}

.gallery{padding:16px}
.thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
.thumb{
  cursor:pointer;
  border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.22)
}
.thumb img{display:block;width:100%;height:auto;transform:scale(1.01)}
.thumb:hover img{transform:scale(1.03)}

.footer{padding:26px 0 34px;border-top:1px solid rgba(255,255,255,.10);margin-top:34px}
.footer-inner{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer a{color:var(--muted)}
.footer a:hover{color:var(--text)}

.form-wrap{padding:18px}
label{display:block;margin:12px 0 6px;font-weight:800}
input, textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:var(--text);
  outline:none;
}
textarea{min-height:140px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.help{margin-top:8px}
.notice{
  margin-top:12px;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
  color:var(--muted);
  font-size:14px;
}
.notice.ok{border-color:rgba(52,211,153,.35);background:rgba(52,211,153,.12);color:#d9fff1}
.notice.err{border-color:rgba(251,113,133,.35);background:rgba(251,113,133,.12);color:#ffe2e8}

.modal{
  position:fixed;inset:0;
  background:rgba(0,0,0,.65);
  display:none;align-items:center;justify-content:center;
  padding:20px;z-index:50;
}
.modal.open{display:flex}
.modal-inner{
  max-width:min(980px, 100%);
  max-height:90vh;
  border-radius:22px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(10,14,26,.96);
  box-shadow:var(--shadow);
}
.modal-top{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.10)}
.modal-top strong{font-size:14px}
.modal-top button{cursor:pointer}
.modal-body{padding:0}
.modal-body img{display:block;width:100%;height:auto}
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr;gap:14px}
  .h1{font-size:38px}
  .grid-3{grid-template-columns:1fr}
  .how{grid-template-columns:1fr}
  .thumbs{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
  .menu-btn{display:inline-flex}
  .nav.open{
    display:flex;flex-direction:column;position:absolute;right:20px;top:62px;
    background:rgba(10,14,26,.96);border:1px solid rgba(255,255,255,.12);
    border-radius:16px;padding:10px;box-shadow:var(--shadow)
  }
  .form-row{grid-template-columns:1fr}
}