:root{
  --navy:#0b3d6b;
  --navy-deep:#072a4b;
  --gold:#f2b544;
  --ink:#16202b;
  --muted:#5c6b7a;
  --line:#e2e8ef;
  --bg:#ffffff;
  --bg-alt:#f6f8fb;
  --radius:14px;
  --wrap:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.narrow{max-width:760px}

/* header */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;letter-spacing:.2px;color:var(--navy)}
.logo strong{color:var(--ink)}
.logo-mark{
  width:26px;height:26px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#1a5c99,var(--navy));
  box-shadow:inset 0 0 0 2px var(--gold);
  flex:none;
}
.nav{display:flex;align-items:center;gap:26px;font-size:15px}
.nav a{color:var(--muted)}
.nav a:hover{color:var(--navy)}
.lang-switch{
  border:1px solid var(--muted);border-radius:999px;
  padding:5px 12px;font-size:13px;font-weight:600;
  letter-spacing:.02em;line-height:1;
}
.lang-switch:hover{border-color:var(--navy);color:var(--navy)}

/* buttons */
.btn{
  display:inline-block;
  background:var(--navy);color:#fff;
  padding:13px 26px;border-radius:999px;
  font-weight:600;font-size:15px;
  transition:transform .15s ease,background .15s ease;
}
.btn:hover{background:var(--navy-deep);transform:translateY(-1px);color:#fff}
.btn-small{padding:9px 18px;font-size:14px}
.btn-ghost{background:transparent;color:var(--navy);box-shadow:inset 0 0 0 1.5px var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}

/* hero */
.hero{
  padding:96px 0 84px;
  background:linear-gradient(160deg,#f4f8fc 0%,#e8eff7 55%,#dfe9f4 100%);
  border-bottom:1px solid var(--line);
}
.eyebrow{
  text-transform:uppercase;letter-spacing:.16em;font-size:12.5px;font-weight:700;
  color:var(--navy);margin:0 0 14px;
}
.hero h1{
  margin:0 0 18px;
  font-size:clamp(32px,5.2vw,54px);
  line-height:1.12;letter-spacing:-.02em;font-weight:700;
}
.lead{font-size:18px;color:var(--muted);max-width:620px;margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.trust{
  list-style:none;display:flex;flex-wrap:wrap;gap:34px;
  padding:0;margin:0;font-size:15px;color:var(--muted);
}
.trust strong{display:block;font-size:22px;color:var(--ink);line-height:1.2}

/* sections */
.section{padding:82px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{
  font-size:clamp(26px,3.4vw,34px);
  margin:0 0 34px;letter-spacing:-.01em;
}

/* service cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.card:hover{box-shadow:0 12px 30px rgba(11,61,107,.10);transform:translateY(-3px);border-color:#cfdbe8}
.card h3{margin:0 0 10px;font-size:18px;color:var(--navy)}
.card p{margin:0;color:var(--muted);font-size:15.5px}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:26px;counter-reset:s}
.steps li{display:flex;gap:16px;align-items:flex-start}
.steps span{
  flex:none;width:38px;height:38px;border-radius:50%;
  background:var(--navy);color:#fff;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.steps h3{margin:2px 0 6px;font-size:17px}
.steps p{margin:0;color:var(--muted);font-size:15px}

/* реквизиты */
.details{margin:0;display:grid;gap:2px}
.details > div{
  display:grid;grid-template-columns:minmax(190px,auto) 1fr;gap:8px 20px;
  padding:13px 0;border-bottom:1px solid var(--line);
}
.details > div:last-child{border-bottom:none}
.details dt{color:var(--muted);font-size:15px}
.details dd{margin:0;font-size:16px;font-weight:600}

@media (max-width:620px){
  .details > div{grid-template-columns:1fr;gap:2px}
  .details dd{font-weight:600}
}

/* contact */
.section-dark{background:var(--navy);color:#fff}
.section-dark h2{color:#fff}
.section-dark .lead{color:#c7dcef}
.contacts{display:flex;flex-wrap:wrap;gap:16px;margin-top:8px}
.contact-item{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  padding:18px 24px;min-width:240px;
  transition:background .15s ease;
}
.contact-item:hover{background:rgba(255,255,255,.15)}
.contact-label{display:block;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:4px}
.contact-value{font-size:17px;font-weight:600}

/* footer */
.site-footer{background:var(--navy-deep);color:#a9c2da;padding:26px 0;font-size:14px}
.footer-inner{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.site-footer p{margin:0}
.site-footer a{color:#cfe0f0;text-decoration:underline;text-underline-offset:3px}
.site-footer a:hover{color:#fff}
.muted{color:#7f9bb6}

@media (max-width:720px){
  /* Menu items collapse on phones, but the language switch must survive:
     a foreign guest arriving on the Russian page has no other way out. */
  .nav a:not(.btn):not(.lang-switch){display:none}
  .nav{gap:14px}
  .hero{padding:64px 0 56px}
  .section{padding:58px 0}
  .trust{gap:22px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}