:root{
  --ink:#1C2530;
  --steel:#2E6F9E;
  --signal:#D9820F;
  --paper:#F5F6F8;
  --slate:#5B6672;
  --white:#FFFFFF;
  --line: rgba(28,37,48,0.12);
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{ background:var(--paper); color:var(--ink); font-family:'IBM Plex Sans', sans-serif; line-height:1.55; -webkit-font-smoothing:antialiased; }
.mono{font-family:'IBM Plex Mono', monospace; letter-spacing:0.02em;}
h1,h2,h3{font-family:'IBM Plex Sans', sans-serif; font-weight:700; letter-spacing:-0.01em; line-height:1.15;}
a{color:inherit; text-decoration:none;}
.wrap{max-width:1120px; margin:0 auto; padding:0 28px;}

nav{ position:sticky; top:0; z-index:50; background:rgba(245,246,248,0.94); backdrop-filter:blur(8px); border-bottom:1px solid var(--line); }
nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:72px; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:17px; }
.brand-mark{ width:30px; height:30px; background:var(--ink); border-radius:4px; display:flex; align-items:center; justify-content:center; color:var(--white); font-weight:700; font-size:14px; }
.nav-cta{ background:var(--steel); color:var(--white); padding:10px 20px; border-radius:4px; font-size:13px; font-weight:700; }

.breadcrumb{ padding:18px 0 0; font-size:13px; color:var(--slate); }
.breadcrumb a{ color:var(--steel); font-weight:600; }

.hero{ padding:50px 0 46px; border-bottom:1px solid var(--line); }
.badge{ display:inline-flex; align-items:center; gap:8px; background:var(--white); border:1px solid var(--line); padding:6px 14px; border-radius:4px; font-size:12px; font-weight:600; color:var(--steel); margin-bottom:22px; }
h1{ font-size:clamp(28px,4vw,42px); max-width:760px; }
.lead{ max-width:640px; margin-top:16px; font-size:16.5px; color:var(--slate); }
.hero-row{ display:flex; gap:14px; margin-top:28px; flex-wrap:wrap; }
.btn-primary{ background:var(--ink); color:var(--white); padding:14px 24px; border-radius:4px; font-weight:700; font-size:14px; display:inline-block; }
.btn-secondary{ background:var(--white); color:var(--ink); border:1px solid var(--line); padding:14px 24px; border-radius:4px; font-weight:700; font-size:14px; display:inline-block; }
.trust-row{ display:flex; gap:28px; margin-top:34px; flex-wrap:wrap; font-size:13px; color:var(--slate); }
.trust-row div{ display:flex; align-items:center; gap:7px; }
.trust-row .dot{ width:6px; height:6px; border-radius:50%; background:var(--signal); }

.versions{ padding:44px 0; background:var(--ink); }
.versions .wrap{ display:flex; align-items:center; gap:24px; flex-wrap:wrap; justify-content:space-between; }
.versions .label{ color:rgba(245,246,248,0.55); font-size:12px; text-transform:uppercase; letter-spacing:0.06em; }
.version-badges{ display:flex; gap:10px; flex-wrap:wrap; }
.version-badge{ background:rgba(245,246,248,0.08); border:1px solid rgba(245,246,248,0.15); color:var(--paper); padding:8px 14px; border-radius:4px; font-size:13px; font-weight:600; }
.version-badge.current{ background:var(--steel); border-color:var(--steel); }

.services{ padding:60px 0; }
.section-head{ max-width:640px; margin-bottom:36px; }
.section-head h2{ font-size:clamp(22px,2.6vw,30px); }
.section-head p{ margin-top:12px; color:var(--slate); font-size:14.5px; }
.service-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:18px; }
.svc-card{ background:var(--white); border:1px solid var(--line); border-radius:8px; padding:22px; transition:border-color 0.15s; }
.svc-card:hover{ border-color:var(--steel); }
.svc-card h3{ font-size:16px; margin-bottom:8px; }
.svc-card p{ font-size:13.5px; color:var(--slate); line-height:1.55; margin-bottom:10px; }
.svc-card .learn{ font-size:13px; font-weight:700; color:var(--steel); }

.article{ padding:16px 0 60px; }
.article .content{ max-width:720px; }
.article h2{ font-size:22px; margin:36px 0 14px; }
.article h2:first-child{ margin-top:0; }
.article p{ font-size:15px; color:var(--slate); line-height:1.75; margin-bottom:14px; }
.article ul{ margin:0 0 16px 20px; }
.article li{ font-size:15px; color:var(--slate); line-height:1.75; margin-bottom:6px; }
.article strong{ color:var(--ink); }

.areas{ padding:56px 0; background:var(--white); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.areas h2{ font-size:clamp(22px,2.6vw,28px); max-width:600px; }
.areas p{ margin-top:14px; max-width:700px; color:var(--slate); font-size:15px; line-height:1.7; }
.areas strong{ color:var(--ink); }

.faq{ padding:60px 0; }
.faq h2{ font-size:clamp(22px,2.6vw,28px); margin-bottom:30px; }
.faq-item{ border-top:1px solid var(--line); padding:18px 0; }
.faq-item:last-child{ border-bottom:1px solid var(--line); }
.faq-item h3{ font-size:15.5px; margin-bottom:6px; }
.faq-item p{ font-size:13.5px; color:var(--slate); line-height:1.6; max-width:680px; }

.contact{ padding:60px 0; background:var(--ink); color:var(--paper); }
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:start; }
@media(max-width:800px){ .contact-grid{grid-template-columns:1fr;} }
.contact h2{ color:var(--paper); font-size:clamp(24px,3vw,32px); }
.contact p{ color:rgba(245,246,248,0.62); margin-top:12px; font-size:14.5px; max-width:420px; }
.contact .phone-big{ font-size:26px; font-weight:700; color:var(--signal); margin-top:20px; display:block; }
form.svc-form{ display:flex; flex-direction:column; gap:12px; }
form.svc-form input, form.svc-form textarea{ width:100%; padding:13px 14px; border:1px solid rgba(245,246,248,0.2); border-radius:4px; font-family:'IBM Plex Sans'; font-size:14px; background:rgba(245,246,248,0.06); color:var(--paper); }
form.svc-form input::placeholder, form.svc-form textarea::placeholder{ color:rgba(245,246,248,0.4); }
form.svc-form label{ font-size:12px; font-weight:600; color:rgba(245,246,248,0.7); margin-bottom:-6px; }
form.svc-form button{ background:var(--steel); color:var(--white); border:none; padding:14px; border-radius:4px; font-weight:700; font-size:14px; cursor:pointer; margin-top:6px; }

.related{ padding:44px 0; background:var(--white); border-top:1px solid var(--line); }
.related .label{ font-size:12px; text-transform:uppercase; letter-spacing:0.06em; color:var(--slate); margin-bottom:16px; }
.related-links{ display:flex; gap:16px; flex-wrap:wrap; }
.related-card{ flex:1; min-width:240px; background:var(--paper); border:1px solid var(--line); border-radius:8px; padding:18px 20px; }
.related-card h4{ font-size:14.5px; margin-bottom:5px; }
.related-card p{ font-size:12.5px; color:var(--slate); line-height:1.5; }
.related-card a{ color:var(--steel); font-weight:600; }

footer{ padding:30px 0; border-top:1px solid var(--line); }
footer .wrap{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:12.5px; color:var(--slate); }