:root{
  --bg:#0b1220;
  --bg-2:#0f1a2c;
  --card:#141f33;
  --line:#22304a;
  --text:#e8eef8;
  --muted:#9fb0c9;
  --acc:#3ba3ff;
  --acc-2:#1d7ad1;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text);
  font:16px/1.6 -apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* header */
.top{position:sticky;top:0;z-index:10;background:rgba(11,18,32,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text)}
.logo:hover{text-decoration:none}
.logo-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:10px;
  background:linear-gradient(140deg,var(--acc),var(--acc-2));
  font-weight:700;font-size:15px;color:#04121f;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;font-weight:600}
.logo-text small{font-weight:400;font-size:11px;color:var(--muted);letter-spacing:.02em}
.top nav{display:flex;gap:22px;margin-left:auto;font-size:15px}
.top nav a{color:var(--muted)}
.top nav a:hover{color:var(--text);text-decoration:none}
.phone{font-weight:600;white-space:nowrap}

/* hero */
.hero{padding:76px 0 56px;background:
  radial-gradient(900px 380px at 15% -10%,rgba(59,163,255,.18),transparent 60%),
  radial-gradient(700px 320px at 90% 0%,rgba(29,122,209,.14),transparent 60%);
  border-bottom:1px solid var(--line)}
.hero h1{font-size:46px;line-height:1.16;margin:0 0 18px;letter-spacing:-.02em}
.lead{font-size:18px;color:var(--muted);max-width:660px;margin:0 0 28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer}
.btn.primary{background:linear-gradient(140deg,var(--acc),var(--acc-2));color:#04121f}
.btn.primary:hover{text-decoration:none;filter:brightness(1.06)}
.btn.ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn.ghost:hover{text-decoration:none;border-color:#35507a}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;margin:44px 0 0;padding:0}
.facts li{background:rgba(20,31,51,.6);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.facts b{display:block;font-size:24px;letter-spacing:-.01em}
.facts span{color:var(--muted);font-size:14px}

/* sections */
.section{padding:64px 0}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{font-size:32px;margin:0 0 28px;letter-spacing:-.01em}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.three{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{margin:0 0 10px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
.price ul{margin:14px 0 0;padding-left:18px;color:var(--muted);font-size:15px}
.price li{margin:6px 0}
.cost{font-size:26px;font-weight:700;color:var(--text);margin:6px 0 0}
.cost small{display:block;font-size:13px;font-weight:400;color:var(--muted)}
.featured{border-color:#2f6ba8;box-shadow:0 0 0 1px rgba(59,163,255,.25) inset}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.contacts{list-style:none;padding:0;margin:18px 0 0}
.contacts li{margin:8px 0;color:var(--muted)}
form.card{display:flex;flex-direction:column;gap:14px}
form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted)}
input,textarea{
  background:#0d1727;border:1px solid var(--line);border-radius:10px;
  padding:11px 12px;color:var(--text);font:inherit;font-size:15px;outline:none
}
input:focus,textarea:focus{border-color:#2f6ba8}
form .btn{align-self:flex-start}

/* footer */
.foot{border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:13px}
.foot .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media(max-width:900px){
  .top nav{display:none}
  .hero h1{font-size:34px}
  .facts{grid-template-columns:repeat(2,1fr)}
  .grid,.grid.two,.grid.three,.contact{grid-template-columns:1fr}
}