:root{
    --bg:#070d11; --bg2:#0b1419; --panel:#0f1a20; --line:#1c2b33;
    --ink:#eaf4f7; --muted:#8ea8b3; --accent:#19C3BE; --accent2:#7CFFB2;
    --radius:16px; --max:1180px;
    --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

  /* ---------- nav ---------- */
  header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(7,13,17,.82);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;gap:32px;height:68px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.3px}
  .mark{width:30px;height:30px;border-radius:9px;background:var(--accent);display:grid;place-items:center;flex:none}
  .mark svg{width:17px;height:17px}
  .navlinks{display:flex;gap:26px;margin-left:8px}
  .navlinks a{color:var(--muted);font-size:14.5px;font-weight:500;transition:color .18s}
  .navlinks a:hover{color:var(--ink)}
  .navcta{margin-left:auto;display:flex;align-items:center;gap:12px}
  .btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;font-size:14.5px;font-weight:600;border:1px solid transparent;transition:.18s;cursor:pointer;white-space:nowrap}
  .btn-ghost{color:var(--muted);border-color:var(--line)}
  .btn-ghost:hover{color:var(--ink);border-color:#2c4550}
  .btn-solid{background:var(--accent);color:#04191c}
  .btn-solid:hover{background:#22ddd7;transform:translateY(-1px)}
  .burger{display:none;background:none;border:0;color:var(--ink);font-size:22px;cursor:pointer}

  /* ---------- hero ---------- */
  .hero{position:relative;padding:96px 0 84px;overflow:hidden}
  .glow{position:absolute;border-radius:50%;filter:blur(110px);opacity:.5;pointer-events:none}
  .g1{width:520px;height:520px;background:#0e6d6a;top:-180px;right:-120px}
  .g2{width:420px;height:420px;background:#12414f;bottom:-200px;left:-140px}
  .hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.9px;text-transform:uppercase;color:var(--accent);border:1px solid #17403f;background:#0a1f22;padding:6px 13px;border-radius:100px;margin-bottom:22px}
  .dot{width:6px;height:6px;border-radius:50%;background:var(--accent2)}
  h1{font-size:clamp(38px,5.1vw,62px);line-height:1.05;letter-spacing:-2px;margin:0 0 20px;font-weight:800}
  h1 em{font-style:normal;background:linear-gradient(100deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
  .lede{font-size:18.5px;color:var(--muted);max-width:520px;margin:0 0 32px}
  .hero-cta{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:28px}
  .btn-lg{padding:14px 26px;font-size:15.5px}
  .trust{display:flex;gap:24px;flex-wrap:wrap;font-size:13.5px;color:var(--muted)}
  .trust b{color:var(--ink);font-weight:600}

  /* ---------- device art (pure SVG, no external assets) ---------- */
  .art{position:relative;height:430px;display:grid;place-items:center}
  .ring{position:absolute;border:1px solid var(--line);border-radius:50%}
  .r1{width:330px;height:330px}.r2{width:420px;height:420px;opacity:.6}
  .devices{position:relative;display:flex;gap:20px;align-items:flex-end}
  .dev{background:linear-gradient(165deg,var(--panel),#0a1216);border:1px solid var(--line);border-radius:20px;padding:20px 16px;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.5)}
  .dev svg{display:block;margin:0 auto 10px}
  .dev span{font-size:11.5px;color:var(--muted);font-weight:600;letter-spacing:.4px}
  .dev.mid{transform:translateY(-26px)}
  .dev.mid span{color:var(--accent)}

  /* ---------- sections ---------- */
  section{padding:86px 0}
  .sec-head{max-width:660px;margin:0 0 44px}
  .sec-head h2{font-size:clamp(28px,3.4vw,40px);letter-spacing:-1.1px;margin:0 0 14px;font-weight:750}
  .sec-head p{color:var(--muted);font-size:17px;margin:0}
  .kicker{font-size:12.5px;font-weight:700;letter-spacing:1.1px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}

  .cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
  .cat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:.2s;position:relative;overflow:hidden}
  .cat:hover{border-color:#24525a;transform:translateY(-3px)}
  .cat svg{margin-bottom:14px}
  .cat h3{font-size:16px;margin:0 0 5px;font-weight:650}
  .cat p{font-size:13.5px;color:var(--muted);margin:0}

  .feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
  .feat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
  .feat .ic{width:40px;height:40px;border-radius:11px;background:#0c2528;display:grid;place-items:center;margin-bottom:16px}
  .feat h3{font-size:17px;margin:0 0 8px;font-weight:650}
  .feat p{font-size:14.5px;color:var(--muted);margin:0}

  .stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px;background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:38px}
  .stat b{display:block;font-size:34px;font-weight:800;letter-spacing:-1.2px;background:linear-gradient(100deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
  .stat span{font-size:13.5px;color:var(--muted)}

  .cta{text-align:center;background:linear-gradient(160deg,#0c2326,#081418);border:1px solid #1a3b3e;border-radius:24px;padding:64px 32px}
  .cta h2{font-size:clamp(27px,3.4vw,38px);letter-spacing:-1.1px;margin:0 0 14px;font-weight:750}
  .cta p{color:var(--muted);max-width:520px;margin:0 auto 28px;font-size:16.5px}
  .cta .hero-cta{justify-content:center}

  footer{border-top:1px solid var(--line);padding:54px 0 40px;color:var(--muted);font-size:14px}
  .fgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:38px}
  .fgrid h4{color:var(--ink);font-size:13px;text-transform:uppercase;letter-spacing:.9px;margin:0 0 14px;font-weight:650}
  .fgrid a{display:block;margin-bottom:9px;transition:color .18s}
  .fgrid a:hover{color:var(--accent)}
  .fbot{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}
  .age{border:1px solid #3a2020;background:#1a0e0e;color:#ffb4b4;border-radius:10px;padding:11px 15px;font-size:12.5px;margin-top:20px;max-width:640px}

  @media(max-width:900px){
    .hero-grid{grid-template-columns:1fr;gap:36px}
    .art{height:330px;order:-1}
    .fgrid{grid-template-columns:1fr 1fr}
    .navlinks{display:none}
  }
  @media(max-width:560px){
    .devices{gap:10px}.dev{padding:14px 10px}
    .fgrid{grid-template-columns:1fr}
    .navcta .btn-ghost{display:none}
  }