/* ===== IT-DETAL — closed AI infrastructure ===== */
:root{
  --void:#0B0F17; --graphite:#111827; --slate:#1F2937; --slate2:#273548;
  --line:#1E2A3C; --line2:#2C3B52;
  --ink:#E8EDF5; --mute:#8A99B0; --dim:#5C6B82;
  --blue:#3B82F6; --indigo:#6366F1; --cyan:#22D3EE;
  --grad:linear-gradient(135deg,#3B82F6,#6366F1);
  --r:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--void); color:var(--ink);
  font-family:Inter,system-ui,sans-serif; line-height:1.6;
  -webkit-font-smoothing:antialiased;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  background-position:center;
  background-attachment:fixed;
}
body::before{content:"";position:fixed;inset:0;background:radial-gradient(circle at 50% -10%,rgba(59,130,246,.10),transparent 55%);pointer-events:none;z-index:0}
.wrap{max-width:1320px;margin:0 auto;padding:0 40px;position:relative;z-index:1}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;font-weight:600;letter-spacing:-.02em;line-height:1.08}
.mono{font-family:'JetBrains Mono',monospace}
a{color:inherit;text-decoration:none}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}

/* NAV */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(11,15,23,.78);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark rect{fill:none;stroke:var(--mute);stroke-width:1.6}
.logo-mark .lm-accent{stroke:var(--blue);fill:rgba(59,130,246,.12)}
.logo-mark line{stroke:var(--dim);stroke-width:1.4}
.logo-text{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:18px;letter-spacing:.02em}
.logo-dash{color:var(--blue)}
.nav-links{display:flex;gap:26px;font-size:14px;color:var(--mute)}
.nav-links a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--grad);color:#fff;font-weight:600;font-size:15px;padding:13px 24px;border-radius:var(--r);border:none;cursor:pointer;transition:transform .15s,box-shadow .15s;font-family:inherit}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(59,130,246,.32)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%;padding:15px}
.btn-ghost{background:transparent;border:1px solid var(--line2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);box-shadow:none;background:rgba(59,130,246,.08)}

/* HERO */
.hero{padding:96px 0 80px;text-align:center;overflow:hidden}
.hero .badge{display:inline-flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--mute);border:1px solid var(--line2);border-radius:100px;padding:7px 16px;margin-bottom:30px}
.hero .badge .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{font-size:clamp(40px,5.5vw,76px);max-width:22ch;margin:0 auto 24px}
.hero h1 .em{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:clamp(17px,1.5vw,22px);color:var(--mute);max-width:72ch;margin:0 auto 38px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* PERIMETER SIGNATURE */
.perimeter{margin:64px auto 0;max-width:920px;border:1px solid var(--line2);border-radius:16px;background:linear-gradient(180deg,rgba(31,41,55,.5),rgba(17,24,39,.3));padding:34px;position:relative}
.perimeter::before{content:"PERIMETER · ZERO EGRESS";position:absolute;top:-9px;left:24px;background:var(--void);padding:0 10px;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.16em;color:var(--cyan)}
.flow{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.flow-node{flex:1;min-width:110px;text-align:center;padding:16px 10px;border:1px solid var(--line);border-radius:var(--r);background:var(--graphite);font-size:13px;position:relative}
.flow-node .fn-i{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--blue);display:block;margin-bottom:6px}
.flow-arrow{color:var(--dim);font-size:18px;flex:0 0 auto}
.perimeter .seal{margin-top:18px;display:flex;align-items:center;gap:10px;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--mute)}
.perimeter .seal .x{color:#ef5b5b}

/* SECTIONS */
section{padding:76px 0;position:relative}
.section-head{max-width:72ch;margin-bottom:48px}
.section-head h2{font-size:clamp(28px,3.2vw,42px);margin-bottom:14px}
.section-head p{color:var(--mute);font-size:18px}
.lead{color:var(--mute);font-size:18px}
.prose p,.prose ul{max-width:80ch}

[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}
[data-reveal].in{opacity:1;transform:none}

/* PROBLEM */
.problem{background:linear-gradient(180deg,rgba(239,91,91,.04),transparent)}
.pain-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.pain{border:1px solid var(--line);border-left:3px solid #ef5b5b;border-radius:var(--r);padding:22px;background:var(--graphite)}
.pain h3{font-size:17px;margin-bottom:8px}
.pain p{color:var(--mute);font-size:14px}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.card{border:1px solid var(--line);border-radius:var(--r);padding:26px;background:var(--graphite);transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--line2);transform:translateY(-2px)}
.card .ci{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--blue);margin-bottom:12px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--mute);font-size:14px}
.card .more{display:inline-block;margin-top:14px;font-size:13px;color:var(--cyan);font-family:'JetBrains Mono',monospace}

/* RESULTS strip */
.results{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.result{background:var(--graphite);padding:30px 24px}
.result .num{font-family:'Space Grotesk',sans-serif;font-size:38px;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.result .lbl{color:var(--mute);font-size:14px;margin-top:6px}

/* ARCH diagram */
.arch{background:var(--graphite);border:1px solid var(--line);border-radius:16px;padding:36px;display:flex;flex-direction:column;gap:0}
.arch-row{display:flex;align-items:center;gap:18px;padding:14px 0}
.arch-step{display:flex;align-items:center;gap:16px;flex:1}
.arch-step .badge2{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--blue);border:1px solid var(--line2);border-radius:8px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.arch-step h3{font-size:17px}
.arch-step p{color:var(--mute);font-size:13px}
.arch-down{margin-left:18px;color:var(--dim);font-family:'JetBrains Mono',monospace;font-size:18px}

/* MODELS chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{border:1px solid var(--line2);border-radius:100px;padding:9px 18px;font-size:14px;color:var(--mute);background:var(--graphite);transition:.2s}
.chip:hover{color:var(--ink);border-color:var(--blue);background:rgba(59,130,246,.08)}

/* SECURITY */
.sec-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.sec{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:linear-gradient(180deg,rgba(59,130,246,.05),transparent)}
.sec .si{width:40px;height:40px;border-radius:8px;background:rgba(59,130,246,.12);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--blue)}
.sec h3{font-size:16px;margin-bottom:8px}
.sec p{color:var(--mute);font-size:14px}

/* CASES */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.case{border:1px solid var(--line);border-radius:var(--r);padding:26px;background:var(--graphite)}
.case .tag{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--cyan)}
.case h3{font-size:19px;margin:10px 0}
.case p{color:var(--mute);font-size:14px}

/* CTA final */
.cta-final{background:linear-gradient(135deg,rgba(59,130,246,.1),rgba(99,102,241,.06));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{font-size:clamp(26px,3.4vw,38px);margin-bottom:14px}
.cta-points{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-points li{padding-left:26px;position:relative;color:var(--mute);font-size:15px}
.cta-points li::before{content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border:2px solid var(--cyan);border-radius:3px}
.lead-form{background:var(--graphite);border:1px solid var(--line2);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:14px}
.lead-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--mute)}
.lead-form input,.lead-form textarea{background:var(--void);border:1px solid var(--line2);border-radius:8px;padding:12px 14px;color:var(--ink);font-family:inherit;font-size:15px;resize:vertical}
.lead-form input:focus,.lead-form textarea:focus{outline:none;border-color:var(--blue)}
.form-note{font-size:11px;color:var(--dim);text-align:center}
.form-ok{text-align:center;padding:30px;color:var(--ink)}

/* RELATED links (SEO interlinking) */
.related{background:var(--graphite);border-top:1px solid var(--line)}
.related-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.related-grid a{font-size:13px;color:var(--mute);border:1px solid var(--line);border-radius:8px;padding:8px 14px;transition:.2s}
.related-grid a:hover{color:var(--ink);border-color:var(--blue)}

/* FOOTER */
.footer{border-top:1px solid var(--line);padding-top:56px;background:var(--void)}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand p{color:var(--mute);font-size:14px;margin-top:14px;max-width:34ch}
.footer-h{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--cyan);letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
.footer-col a{display:block;color:var(--mute);font-size:14px;margin-bottom:10px}
.footer-col a:hover{color:var(--ink)}
.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:24px 0;color:var(--dim);font-size:13px;flex-wrap:wrap;gap:8px}

/* CONTENT pages (SEO) */
.page-hero{padding:60px 0 30px}
.breadcrumbs{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--dim);margin-bottom:18px}
.breadcrumbs a{color:var(--mute)}
.breadcrumbs a:hover{color:var(--ink)}
.page-hero h1{font-size:clamp(30px,4vw,50px);max-width:24ch;margin-bottom:16px}
.page-hero .lead{max-width:76ch}
.prose{max-width:100%}
.prose-narrow{max-width:80ch}
.prose h2{font-size:26px;margin:40px 0 16px}
.prose h3{font-size:19px;margin:26px 0 10px}
.prose p{color:var(--mute);margin-bottom:14px}
.prose ul{color:var(--mute);margin:0 0 18px 22px;display:flex;flex-direction:column;gap:8px}
.faq-item{border:1px solid var(--line);border-radius:var(--r);padding:20px 24px;margin-bottom:12px;background:var(--graphite)}
.faq-item h3{font-size:16px;margin-bottom:8px}
.faq-item p{color:var(--mute);font-size:14px}
.index-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:30px}
.index-grid a{border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;background:var(--graphite);font-size:14px;transition:.2s}
.index-grid a:hover{border-color:var(--blue);color:var(--ink);transform:translateY(-1px)}
.cluster-h{font-family:'Space Grotesk';font-size:22px;margin:36px 0 16px;padding-top:20px;border-top:1px solid var(--line)}

@media(max-width:860px){
  .nav-links{display:none}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:28px}
  .flow{flex-direction:column}
  .flow-arrow{transform:rotate(90deg)}
  .arch-row{flex-direction:column;align-items:flex-start}
  .wrap{padding:0 20px}
}

/* Категории услуг */
.svc-cat{margin-top:40px}
.svc-cat-head{display:flex;align-items:baseline;gap:14px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:20px}
.svc-cat-head h2{font-size:23px}
.svc-cat-head .cnt{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--cyan)}
.svc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.svc-card{display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;background:var(--graphite);transition:.2s}
.svc-card:hover{border-color:var(--blue);transform:translateY(-2px)}
.svc-card .t{font-family:'Space Grotesk';font-weight:600;font-size:15px}
.svc-card .a{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--cyan)}

/* Карточки моделей с применением */
.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px;margin-top:30px}
.model-card{border:1px solid var(--line);border-radius:12px;padding:24px;background:var(--graphite);transition:.2s;display:flex;flex-direction:column;gap:10px}
.model-card:hover{border-color:var(--blue);transform:translateY(-2px)}
.model-card .mc-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.model-card h3{font-size:20px}
.model-card .mc-params{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--mute);border:1px solid var(--line2);border-radius:6px;padding:4px 9px;white-space:nowrap}
.model-card .mc-use{color:var(--mute);font-size:14px}
.model-card .mc-best{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);font-family:'JetBrains Mono',monospace;border-top:1px solid var(--line);padding-top:12px}
.model-card .mc-best::before{content:"◆"}

/* Линейка оборудования */
.hw-tier{margin-top:40px}
.hw-tier-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.hw-tier-head .badge3{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--void);background:var(--grad);border-radius:6px;padding:5px 12px;font-weight:600}
.hw-tier-head h2{font-size:22px}
.hw-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(420px,1fr));gap:16px}
.hw-card{border:1px solid var(--line);border-radius:12px;padding:26px;background:var(--graphite);transition:.2s;display:flex;flex-direction:column;gap:12px}
.hw-card:hover{border-color:var(--blue);transform:translateY(-2px)}
.hw-card h3{font-size:19px}
.hw-card .hw-who{color:var(--mute);font-size:14px}
.hw-card .hw-row{display:flex;gap:10px;font-size:13px}
.hw-card .hw-row .k{font-family:'JetBrains Mono',monospace;color:var(--cyan);flex:0 0 96px}
.hw-card .hw-row .v{color:var(--mute)}
.hw-scale{display:flex;align-items:stretch;gap:0;margin:34px 0 10px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.hw-scale .step{flex:1;padding:18px;text-align:center;background:var(--graphite);border-right:1px solid var(--line)}
.hw-scale .step:last-child{border-right:none}
.hw-scale .step .n{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--cyan);display:block;margin-bottom:6px}
.hw-scale .step .l{font-size:14px;font-weight:600;font-family:'Space Grotesk'}
.hw-scale .step .d{font-size:12px;color:var(--mute);margin-top:4px}

@media(max-width:560px){.hw-grid,.model-grid{grid-template-columns:1fr}.hw-scale{flex-direction:column}.hw-scale .step{border-right:none;border-bottom:1px solid var(--line)}}