:root{
  --bg:#ffffff; --bg-alt:#f3f7f6; --ink:#0d1b19; --muted:#51625f; --line:#e1e9e7;
  --brand:#0f766e; --brand-d:#0b5c56; --brand-soft:#ccfbf1; --brand-ink:#ffffff; --accent:#14b8a6;
  --radius:16px; --shadow:0 1px 2px rgba(13,27,25,.05),0 10px 30px rgba(13,27,25,.06);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0a1211; --bg-alt:#0f1a19; --ink:#e7f0ef; --muted:#9bb0ad; --line:#1d2c2a;
    --brand:#2dd4bf; --brand-d:#5eead4; --brand-soft:#123b37; --brand-ink:#04201d; --accent:#14b8a6;
    --shadow:none;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.2vw,48px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:18px}
p{margin:0 0 1em}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}

/* кнопки */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:var(--brand-ink);text-decoration:none;
  font-weight:600;border-radius:12px;padding:12px 20px;border:1px solid transparent;transition:background .15s}
.btn:hover{background:var(--brand-d)}
.btn-light{background:transparent;color:var(--brand);border-color:var(--line)}
.btn-light:hover{background:var(--bg-alt)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--line);padding:8px 14px;font-size:14px}
.btn-ghost:hover{background:var(--bg-alt)}

/* шапка */
.nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);min-width:max-content}
.brand b{display:block;font-size:16px;letter-spacing:.3px}
.brand small{display:block;color:var(--muted);font-size:12px;line-height:1.2}
.logo{width:36px;height:36px;border-radius:10px;background:var(--brand);display:grid;place-items:center}
.logo svg{width:24px;height:24px;fill:var(--brand-ink)}
.menu{display:flex;gap:22px;flex:1}
.menu a{color:var(--muted);text-decoration:none;font-size:15px}
.menu a:hover{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:10px;padding:2px}
.lang button{border:0;background:none;color:var(--muted);font:inherit;font-size:13px;font-weight:600;padding:5px 9px;border-radius:8px;cursor:pointer}
.lang button.on{background:var(--brand);color:var(--brand-ink)}

/* первый экран */
.hero{background:radial-gradient(1200px 500px at 85% -10%,var(--brand-soft),transparent 60%),var(--bg)}
.hero-in{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:72px 20px 64px}
.eyebrow{color:var(--brand);font-weight:600;font-size:14px;letter-spacing:.2px;margin-bottom:14px}
.lead{font-size:18px;color:var(--muted);max-width:600px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-art svg{width:100%;height:auto;display:block}
.hero-art .a1{fill:var(--bg);stroke:var(--line);stroke-width:2}
.hero-art .a2 rect:first-child{fill:var(--brand-soft)} .hero-art .a2 rect:last-child{fill:var(--accent)}
.hero-art .a3 circle{fill:var(--brand)} .hero-art .a3 path{stroke:var(--brand-ink);stroke-width:7;stroke-linecap:round;fill:none}
.hero-art .a4 rect{fill:var(--bg-alt)}
.hero-art .a5 circle{fill:var(--accent)} .hero-art .a5 path{stroke:#fff;stroke-width:6;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* факты */
.facts{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-alt)}
.facts-in{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.fact{padding:22px 20px;border-left:1px solid var(--line)}
.fact:first-child{border-left:0}
.fact b{display:block;font-size:18px}
.fact span{color:var(--muted);font-size:14px}

/* секции */
.sec{padding:80px 0}
.sec.alt{background:var(--bg-alt)}
.sub{color:var(--muted);margin-top:-6px;margin-bottom:28px}
.two{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.checks li{background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;padding:14px 16px 14px 46px;position:relative}
.checks li::before{content:"";position:absolute;left:16px;top:18px;width:16px;height:16px;border-radius:50%;background:var(--brand)}
.checks li::after{content:"";position:absolute;left:21px;top:21px;width:6px;height:9px;border:solid var(--brand-ink);border-width:0 2px 2px 0;transform:rotate(45deg)}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card p{color:var(--muted);font-size:15px;margin:0}
.ic{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--brand-soft);margin-bottom:14px}
.ic svg{width:24px;height:24px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.steps{list-style:none;counter-reset:s;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.steps li{counter-increment:s;position:relative;padding:56px 20px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg)}
.steps li::before{content:counter(s);position:absolute;top:18px;left:20px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:var(--brand-ink);
  display:grid;place-items:center;font-weight:700;font-size:14px}
.steps b{display:block;margin-bottom:6px}
.steps span{color:var(--muted);font-size:15px}

.partner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.partner p{color:var(--muted);max-width:720px;margin:0}

.contacts{display:grid;grid-template-columns:max-content 1fr;gap:10px 24px;margin:8px 0 0}
.contacts dt{color:var(--muted)}
.contacts dd{margin:0;font-weight:500}
.req{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.req p{margin:0 0 6px}

.foot{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:14px}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot a{color:var(--muted)}

[hidden]{display:none!important}

@media (max-width:960px){
  .menu{display:none}
  .hero-in{grid-template-columns:1fr;padding:48px 20px 40px}
  .hero-art{max-width:420px}
  .facts-in{grid-template-columns:1fr 1fr}
  .fact:nth-child(3){border-left:0}
  .fact{border-top:1px solid var(--line)}
  .fact:nth-child(-n+2){border-top:0}
  .cards,.steps{grid-template-columns:1fr 1fr}
  .two{grid-template-columns:1fr;gap:28px}
  .partner{flex-direction:column;align-items:flex-start}
  .sec{padding:56px 0}
}
@media (max-width:560px){
  .nav-in{gap:10px;height:60px}
  .brand small{display:none}
  .nav-right .btn-ghost{display:none}   /* вход для сотрудников — в подвале */
  .cards,.steps{grid-template-columns:1fr}
  .facts-in{grid-template-columns:1fr}
  .fact{border-left:0!important;border-top:1px solid var(--line)!important}
  .fact:first-child{border-top:0!important}
  .contacts{grid-template-columns:1fr;gap:2px}
  .contacts dd{margin-bottom:10px}
}