:root{
  --ink:#0d1117; --body:#39434f; --muted:#6b7684; --line:#e5e9ee; --bg:#fff; --soft:#f7f9fb;
  --brand:#0d3b66; --brand-2:#1b6ca8; --accent:#38b6a0; --dark:#0b1a2b;
  --radius:14px; --wrap:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--body);
  font:16.5px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--brand-2)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
h1,h2,h3{color:var(--ink);letter-spacing:-.02em}

/* header */
.site-head{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.logo .mark{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;color:#fff;
  font-weight:700;font-size:13px;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.logo b{font-weight:650;font-size:15px;white-space:nowrap;display:block;line-height:1.25}
.logo span{display:block;font-size:10.5px;color:var(--muted);font-weight:500;letter-spacing:.08em;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500}
.nav a:hover{color:var(--ink)}
.btn{display:inline-block;text-decoration:none;padding:12px 22px;border-radius:9px;
  font-size:15px;font-weight:600;border:1px solid transparent;transition:.15s}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.primary:hover{background:#0a2f52}
.btn.ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.btn.ghost:hover{background:rgba(255,255,255,.1)}
.btn.light{background:#fff;color:var(--brand);border-color:var(--line)}
.btn.light:hover{background:var(--soft)}
.nav .btn{color:#fff}

/* hero */
.hero{position:relative;color:#fff;padding:104px 0 96px;overflow:hidden;
  background:linear-gradient(160deg,#0b2545 0%,#0d3b66 45%,#12507f 100%)}
.hero:after{content:"";position:absolute;right:-12%;top:-30%;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,182,160,.28),transparent 62%)}
.hero .wrap{position:relative;z-index:2}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:#9fd8ce;border:1px solid rgba(159,216,206,.35);border-radius:999px;padding:6px 14px;margin:0 0 22px}
.hero h1{color:#fff;font-size:clamp(32px,5vw,54px);line-height:1.1;margin:0 0 20px;max-width:19ch}
.hero p.lead{font-size:19.5px;color:#cfe0ee;max-width:60ch;margin:0 0 32px}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:64px;
  padding-top:32px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stats b{display:block;color:#fff;font-size:27px;letter-spacing:-.02em;line-height:1.2}
.hero-stats span{color:#a8c4dc;font-size:14px}

/* sections */
section{padding:82px 0}
section.alt{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
section.dark{background:var(--dark);color:#c7d5e3}
section.dark h2,section.dark h3{color:#fff}
.tag{font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-2);margin:0 0 12px}
.h2{font-size:clamp(25px,3.2vw,34px);margin:0 0 14px;line-height:1.2}
.sub{color:var(--muted);max-width:66ch;margin:0 0 44px;font-size:17px}
.grid{display:grid;gap:22px}
.c2{grid-template-columns:repeat(2,1fr)}
.c3{grid-template-columns:repeat(3,1fr)}
.c4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  transition:.15s}
.card:hover{border-color:#cfd8e3;box-shadow:0 8px 30px rgba(13,59,102,.07);transform:translateY(-2px)}
.card h3{margin:0 0 10px;font-size:19px}
.card p{margin:0 0 12px;font-size:15.5px}
.card ul{margin:12px 0 0;padding-left:18px;font-size:15px;color:var(--muted)}
.card li{margin-bottom:6px}
.icon{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(135deg,#e8f3ff,#dff3ee)}
.icon svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:1.8}
.step{display:flex;gap:18px;align-items:flex-start;padding:22px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step .n{flex:0 0 40px;height:40px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:650;font-size:15px}
.step h3{margin:2px 0 6px;font-size:18px}
.step p{margin:0;font-size:15.5px}
.pill{display:inline-block;border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:7px 15px;font-size:14.5px;color:var(--body);margin:0 8px 9px 0}
section.dark .pill{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:#dbe6f0}
.cta{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-radius:18px;
  padding:52px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta h2{color:#fff;margin:0 0 8px;font-size:29px}
.cta p{margin:0;color:#cfe3f3;max-width:52ch}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.contact-grid dt{font-size:12.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:18px}
.contact-grid dt:first-child{margin-top:0}
.contact-grid dd{margin:4px 0 0;font-size:16px;color:var(--ink)}

/* legal */
.legal{padding:56px 0 84px;max-width:820px}
.legal h1{font-size:36px;margin:0 0 6px}
.legal .updated{color:var(--muted);font-size:14.5px;margin:0 0 36px}
.legal h2{font-size:20px;margin:36px 0 8px}
.legal p,.legal li{color:#2f3945}

/* footer */
.site-foot{background:var(--dark);color:#94a7bb;padding:56px 0 44px;font-size:14.5px}
.site-foot a{color:#b9cbdd;text-decoration:none}
.site-foot a:hover{color:#fff}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:36px}
.foot-top h4{color:#fff;font-size:14px;margin:0 0 14px;letter-spacing:.02em}
.foot-top ul{list-style:none;margin:0;padding:0}
.foot-top li{margin-bottom:9px}
.legal-line{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;line-height:1.8;font-size:13.5px;color:#7d90a5}

/* cookie */
.cookie{position:fixed;left:20px;right:20px;bottom:20px;z-index:60;background:#fff;
  border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 44px rgba(11,26,43,.18);
  padding:20px 22px;display:none;gap:20px;align-items:center;justify-content:space-between;
  max-width:900px;margin:0 auto;flex-wrap:wrap}
.cookie.show{display:flex}
.cookie p{margin:0;font-size:14.5px;flex:1 1 400px}
.cookie .row{display:flex;gap:10px}
.cookie button{font:inherit;font-size:14.5px;font-weight:600;padding:10px 18px;border-radius:9px;
  cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink)}
.cookie button.primary{background:var(--brand);border-color:var(--brand);color:#fff}

@media (max-width:980px){
  .c4{grid-template-columns:repeat(2,1fr)}
  .c3{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px}
  .foot-top{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .c4,.c2{grid-template-columns:1fr}
  .nav a:not(.btn){display:none}
  .hero{padding:72px 0 64px}
  section{padding:60px 0}
  .cta{padding:34px}
  .foot-top{grid-template-columns:1fr}
}

/* enquiry form */
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:6px;font-weight:500}
.field input,.field textarea{width:100%;font:inherit;font-size:15.5px;color:var(--ink);
  padding:11px 13px;border:1px solid var(--line);border-radius:9px;background:#fff;transition:.15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(27,108,168,.12)}
.field textarea{resize:vertical;min-height:110px}
#f-website{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);margin:6px 0 18px;line-height:1.5}
.check input{margin-top:3px;flex:0 0 auto}
#f-submit{border:0;cursor:pointer;font:inherit;font-size:15px;font-weight:600}
#f-submit[disabled]{opacity:.6;cursor:default}
.form-note{margin:14px 0 0;font-size:14.5px;min-height:20px}
.form-note.ok{color:#1a7f5a}
.form-note.err{color:#b3261e}

/* problem cards: крупная цифра как заголовок */
#problem .card h3{font-size:34px;letter-spacing:-.03em;color:var(--brand);margin-bottom:8px}
#problem .card p{color:var(--muted)}