:root{
  --ink:#1d2430;--muted:#5b6574;--line:#e3e6ea;--bg:#fbfaf7;--card:#fff;
  --brand:#0f6b6f;--brand-d:#0a4f52;--accent:#d98a2b;--soft:#eef5f4;
  --r:10px;--w:1120px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.6}
a{color:var(--brand)}
a:hover{color:var(--brand-d)}
img{max-width:100%}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:9}

/* шапка */
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top .wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:19px;letter-spacing:.2px}
.logo i{width:30px;height:30px;border-radius:8px;background:var(--brand);position:relative;flex:none}
.logo i:before{content:"";position:absolute;inset:7px;border:3px solid #fff;border-right-color:transparent;border-radius:50%}
.logo small{display:block;font-weight:400;font-size:12px;color:var(--muted);line-height:1.1}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{text-decoration:none;color:var(--ink);font-size:15px}
.nav a:hover,.nav a.on{color:var(--brand)}
.cab{border:1px solid var(--brand);border-radius:8px;padding:7px 14px;text-decoration:none;font-size:14px;white-space:nowrap}
.cab:hover{background:var(--brand);color:#fff}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:15px;cursor:pointer}

/* первый экран */
.hero{background:linear-gradient(135deg,#0f6b6f 0%,#0b5154 60%,#123e4a 100%);color:#fff;padding:72px 0 64px}
.hero h1{font-size:40px;line-height:1.2;margin:0 0 16px;max-width:720px}
.hero p{font-size:18px;max-width:640px;color:#d8ecea;margin:0 0 28px}
.hero .langs{margin-top:34px;display:flex;flex-wrap:wrap;gap:8px}
.hero .langs span{background:rgba(255,255,255,.12);border-radius:20px;padding:4px 12px;font-size:14px}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;border:0;border-radius:8px;padding:12px 22px;font-size:16px;font-weight:600;cursor:pointer}
.btn:hover{background:#c27820;color:#fff}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,.6);margin-left:10px}
.btn.ghost:hover{background:rgba(255,255,255,.1)}

/* разделы */
.sec{padding:56px 0}
.sec.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec h2{font-size:28px;margin:0 0 8px}
.sec .lead{color:var(--muted);margin:0 0 28px;max-width:720px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .more{display:inline-block;margin-top:12px;font-size:14px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{counter-increment:s;background:var(--soft);border-radius:var(--r);padding:20px}
.steps li:before{content:counter(s);display:inline-block;width:30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;text-align:center;line-height:30px;font-weight:700;margin-bottom:10px}
.facts{display:flex;flex-wrap:wrap;gap:36px;margin-top:8px}
.facts b{display:block;font-size:30px;color:var(--brand)}
.facts span{color:var(--muted);font-size:14px}

/* страницы */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:40px 0 30px}
.page-head h1{margin:0 0 6px;font-size:32px}
.page-head p{margin:0;color:var(--muted);max-width:760px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:10px}
.crumbs a{color:var(--muted)}
.content{padding:40px 0 56px}
.content h2{font-size:22px;margin:32px 0 10px}
.content h2:first-child{margin-top:0}
.content ul{padding-left:20px}
.cols{display:grid;grid-template-columns:2fr 1fr;gap:40px;align-items:start}
.aside{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;position:sticky;top:90px}
.aside h3{margin-top:0;font-size:17px}
table.price{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:15px}
table.price th,table.price td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.price th{background:var(--soft);font-weight:600}
table.price td.n{white-space:nowrap}
.note{font-size:14px;color:var(--muted)}
details{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 18px;margin-bottom:10px}
details summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 0;color:var(--muted)}

/* формы */
.form{display:grid;gap:14px;max-width:560px}
.form label{display:block;font-size:14px;font-weight:600;margin-bottom:4px}
.form input,.form select,.form textarea{width:100%;font:inherit;padding:10px 12px;border:1px solid #cfd5db;border-radius:8px;background:#fff}
.form textarea{min-height:120px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid #9fd0cc;border-color:var(--brand)}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.feedback{margin:0;padding:10px 12px;border-radius:8px;font-size:14px}
.feedback.err{background:#fdecec;color:#9b1c1c}
.feedback.ok{background:#e8f5ee;color:#1d6b3f}

/* вход */
.login-wrap{min-height:calc(100vh - 68px - 120px);display:flex;align-items:center;padding:48px 0}
.login-box{display:grid;grid-template-columns:1fr 400px;gap:56px;align-items:center;width:100%}
.login-box h1{font-size:30px;margin:0 0 12px}
.login-box .info p{color:var(--muted)}
.login-box .info ul{color:var(--muted);padding-left:20px}
.login-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;box-shadow:0 8px 30px rgba(15,40,50,.06)}
.login-card h2{margin:0 0 18px;font-size:20px}
.login-card .btn{width:100%}
.login-card .sub{font-size:13px;color:var(--muted);margin:14px 0 0}

/* ошибки */
.err-page{padding:90px 0;text-align:center}
.err-page .code{font-size:84px;font-weight:800;color:var(--brand);line-height:1}
.err-page h1{font-size:26px;margin:14px 0 8px}
.err-page p{color:var(--muted);margin:0 auto 24px;max-width:520px}

/* подвал */
.foot{background:#162a33;color:#b9c7cc;padding:40px 0 26px;font-size:14px}
.foot .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.foot b{color:#fff;display:block;margin-bottom:8px}
.foot a{color:#b9c7cc;text-decoration:none;display:block;margin:3px 0}
.foot a:hover{color:#fff}
.foot .copy{grid-column:1/-1;border-top:1px solid #2a4450;padding-top:16px;margin-top:6px;color:#7f959d}

@media (max-width:900px){
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 24px}
  .nav.open{display:flex}
  .nav a{padding:10px 0;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .top .cab{display:none}
  .grid,.grid.two,.steps,.cols,.login-box,.foot .wrap{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .aside{position:static}
  .form .row2{grid-template-columns:1fr}
}
.note.gap{margin-top:14px}