/* ─── tokens ──────────────────────────────────────────────────────── */
:root{
  --bg:#FFFFFF;
  --bg-2:#FAFAFA;
  --ink:#1A1D24;
  --ink-2:#6B7280;
  --rule:#E5E7EB;
  --card:#F4F5F7;
  --accent:#1B3A5C;   /* primary deep blue */
  --link:#2563EB;     /* interactive */
  --dark:#0F1830;

  --sans:'Manrope', 'Inter', system-ui, -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
  --mono:'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw:1280px;
  --gutter:48px;
}

*,*::before,*::after{box-sizing:border-box}
[data-status="pending"]{display:none}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{font-size:17px;line-height:1.55}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
::selection{background:#1B3A5C22;color:var(--ink)}

/* ─── document chrome ─────────────────────────────────────────────── */
.doc-header{
  position:sticky;top:0;z-index:50;
  background:var(--bg);
  border-bottom:1px solid var(--rule);
}
.doc-header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:14px var(--gutter);
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:center;
  gap:32px;
}
.burger{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;padding:0;
  background:transparent;
  border:1px solid var(--rule);
  cursor:pointer;
}
.burger span{
  display:block;
  width:20px;height:2px;
  background:var(--ink);
  transition:transform .2s ease, opacity .2s ease;
}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.brand{
  font-family:var(--mono);
  font-weight:600;
  font-size:15px;
  letter-spacing:.04em;
  color:var(--ink);
  display:flex;align-items:center;gap:10px;
}
.brand-mark{
  display:inline-block;width:10px;height:10px;background:var(--accent);
}
.brand b{font-weight:700;letter-spacing:.02em}
nav.doc-nav{display:flex;gap:28px;justify-content:center}
nav.doc-nav a{
  color:var(--ink);font-size:14px;font-weight:500;
  text-decoration:none;
}
nav.doc-nav a:hover{color:var(--link)}
.doc-meta{
  font-family:var(--mono);font-size:12px;color:var(--ink-2);
  letter-spacing:.04em;text-transform:uppercase;
  display:flex;gap:18px;align-items:center;
}
.doc-meta b{color:var(--ink);font-weight:600}

/* ─── section frame ───────────────────────────────────────────────── */
section.block{
  border-bottom:1px solid var(--rule);
  position:relative;
}
.block-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:64px var(--gutter) 88px;
  position:relative;
}
.section-head{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:end;
  gap:24px;
  padding-bottom:18px;
  margin-bottom:48px;
  border-bottom:1px solid var(--rule);
}
.section-code{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
  display:flex;gap:14px;align-items:center;
  margin-bottom:14px;
}
.section-code .dot{
  display:inline-block;width:6px;height:6px;background:var(--accent);
}
.section-title{
  font-family:var(--sans);
  font-weight:800;
  font-size:44px;
  line-height:1.05;
  letter-spacing:-.015em;
  color:var(--ink);
  margin:0;
  max-width:18ch;
}
.sheet-no{
  font-family:var(--mono);
  font-size:12px;
  color:var(--ink-2);
  letter-spacing:.08em;
  text-align:right;
  white-space:nowrap;
}
.sheet-no b{color:var(--ink);font-weight:600}
.section-lede{
  font-size:18px;
  color:var(--ink);
  max-width:62ch;
  margin:0 0 40px;
  line-height:1.55;
}

/* ─── Hero (block 01) ─────────────────────────────────────────────── */
.hero{padding-top:0}
.hero-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:48px var(--gutter) 72px;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:64px;
  align-items:stretch;
  min-height:calc(100vh - 56px);
}
.hero-left{display:flex;flex-direction:column;justify-content:space-between;padding-top:24px}
.hero-eyebrow{
  font-family:var(--mono);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);
  display:flex;align-items:center;gap:14px;
  margin-bottom:32px;
}
.hero-eyebrow .rule{flex:1;height:1px;background:var(--rule)}
.hero-eyebrow .pg{color:var(--ink-2)}

h1.hero-h1{
  font-family:var(--sans);
  font-weight:800;
  font-size:clamp(40px, 5.2vw, 72px);
  line-height:1.02;
  letter-spacing:-.02em;
  color:var(--ink);
  margin:0 0 28px;
  max-width:16ch;
}
.hero-sub{
  font-size:18px;
  line-height:1.55;
  color:var(--ink);
  max-width:54ch;
  margin:0 0 40px;
}
.hero-sub b{font-weight:600}

.metrics{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  margin:24px 0 36px;
  font-family:var(--mono);
}
.metric{
  flex:1 1 0;
  padding:18px 20px 16px;
  border-right:1px solid var(--rule);
  min-width:140px;
}
.metric:last-child{border-right:none}
.metric .v{
  font-size:22px;font-weight:600;color:var(--ink);letter-spacing:-.01em;line-height:1;
  display:block;margin-bottom:8px;
}
.metric .k{
  font-size:11px;color:var(--ink-2);letter-spacing:.1em;text-transform:uppercase;
  display:block;
}

.cta-row{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--accent);color:#fff;
  font-family:var(--sans);font-weight:600;font-size:16px;
  padding:16px 22px;
  border:none;cursor:pointer;
  transition:background .15s ease;
  text-decoration:none;
}
.btn:hover{background:var(--link);text-decoration:none;color:#fff}
.btn .arr{font-family:var(--mono);font-weight:400}

.link-cta{
  color:var(--link);
  font-weight:500;
  font-size:15px;
  border-bottom:1px solid currentColor;
  padding-bottom:2px;
}
.link-cta:hover{text-decoration:none;color:var(--accent);border-color:var(--accent)}

/* hero right — technical schema */
.hero-right{
  border:1px solid var(--rule);
  background:#FCFCFD;
  position:relative;
  display:flex;flex-direction:column;
  min-height:520px;
}
.schema-titleblock{
  border-bottom:1px solid var(--rule);
  padding:14px 18px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-2);
  display:grid;
  grid-template-columns:1fr auto;
  gap:12px;
}
.schema-titleblock b{color:var(--ink);font-weight:600}
.schema-stage{
  flex:1;position:relative;overflow:hidden;
}
.schema-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(27,58,92,.08) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,58,92,.08) 1px,transparent 1px);
  background-size:32px 32px;
  background-position:-1px -1px;
}
.schema-grid::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(27,58,92,.18) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,58,92,.18) 1px,transparent 1px);
  background-size:128px 128px;
  background-position:-1px -1px;
}

/* ─── Block 02 — Опыт в Татарстане ────────────────────────────────── */
.card-grid-2{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.obj-card{
  background:var(--card);
  border:1px solid transparent;
  padding:28px 28px 32px;
  display:flex;flex-direction:column;
  transition:border-color .18s ease, transform .18s ease;
}
.obj-card:hover{border-color:var(--accent)}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--link);
  background:#fff;
  padding:6px 10px 5px;
  border:1px solid var(--rule);
  width:max-content;
  margin-bottom:24px;
}
.tag .sq{width:6px;height:6px;background:var(--link);display:inline-block}

.obj-card h3{
  font-family:var(--sans);
  font-weight:700;
  font-size:24px;
  line-height:1.2;
  margin:0 0 14px;
  color:var(--ink);
  letter-spacing:-.01em;
}
.obj-card .meta-row{
  font-size:14px;color:var(--ink-2);line-height:1.55;
  margin-bottom:22px;
}
.obj-card .meta-row span{color:var(--ink)}

.specs{
  border-top:1px solid var(--rule);
  margin-top:auto;
}
.specs dl{
  margin:0;
  display:grid;
  grid-template-columns:140px 1fr;
  column-gap:18px;
  row-gap:0;
}
.specs dt,.specs dd{
  margin:0;padding:14px 0;
  border-bottom:1px solid var(--rule);
  font-size:14px;
  line-height:1.5;
}
.specs dt{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--ink-2);
  font-size:11px;
  padding-top:18px;
}
.specs dd{
  font-family:var(--mono);
  font-size:12.5px;letter-spacing:.02em;
  color:var(--ink);font-weight:500;
  padding-top:18px;
}
.specs > dl > :nth-last-child(-n+2){border-bottom:none}

.obj-card .works{
  margin-top:18px;
  padding-top:18px;
  border-top:1px solid var(--rule);
  font-size:14px;
  color:var(--ink);
  line-height:1.55;
}
.obj-card .works .label{
  display:block;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);
  margin-bottom:8px;
}

/* footer rule note */
.rev-note{
  font-family:var(--mono);
  font-size:11px;color:var(--ink-2);letter-spacing:.08em;text-transform:uppercase;
  padding:18px var(--gutter);
  max-width:var(--maxw);margin:0 auto;
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  border-top:1px solid var(--rule);
}

/* ─── Hero · cycle diagram ─────────────────────────────────────── */
.cycle-frame{
  position:absolute;inset:32px 28px;
  background:#fff;
  border:1.5px solid var(--accent);
  padding:34px 30px 30px;
  display:flex;flex-direction:column;
}
.cycle-frame-head{
  display:flex;justify-content:space-between;align-items:baseline;
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-2);
  border-bottom:1px solid var(--rule);
  padding-bottom:14px;margin-bottom:24px;
}
.cycle-frame-head b{color:var(--ink);font-weight:600}
.cycle{
  list-style:none;margin:0;padding:0;
  flex:1;
  display:flex;flex-direction:column;justify-content:space-between;
  position:relative;
}
.cycle::before{
  content:"";position:absolute;
  left:15.25px;top:16px;bottom:16px;
  width:1.5px;background:var(--accent);opacity:.3;
}
.cycle li{
  display:grid;
  grid-template-columns:32px 1fr auto;
  align-items:center;
  gap:18px;
  position:relative;
  font-family:var(--mono);
}
.cycle .node{
  width:32px;height:32px;
  border:1.5px solid var(--accent);
  background:#fff;
  color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-weight:600;font-size:12px;letter-spacing:0;
  position:relative;z-index:1;
}
.cycle .label{
  font-weight:600;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);
}
.cycle .active .node{background:var(--accent);color:#fff}
.cycle .active .label{color:var(--accent)}
.cycle .callout{
  font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);
  background:#fff;border:1px solid var(--accent);
  padding:7px 12px 6px;
  white-space:nowrap;
  position:relative;
}
.cycle .callout::before{
  content:"";position:absolute;
  left:-14px;top:50%;
  width:14px;height:1.5px;background:var(--accent);
}
.cycle-frame-foot{
  border-top:1px solid var(--rule);
  margin-top:18px;padding-top:14px;
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);
  display:flex;justify-content:space-between;
}
.cycle-frame-foot b{color:var(--ink);font-weight:600}

/* ─── Block 02 — geo-tag ───────────────────────────────────────── */
.geo-tag{
  font-family:var(--mono);
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-2);
  display:inline-flex;align-items:center;gap:8px;
  margin-left:auto;
}
.geo-tag .pin{
  display:inline-block;width:5px;height:5px;background:var(--ink-2);border-radius:50%;
}
.geo-tag b{color:var(--ink);font-weight:600}
.tag-row{display:flex;align-items:flex-start;gap:14px;margin-bottom:24px;flex-wrap:wrap}

/* ─── Block 03 — Когда я подключаюсь ────────────────────────────── */
.case-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--rule);
  border-left:1px solid var(--rule);
}
.case-card{
  background:#fff;
  border-right:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  padding:28px 26px 32px;
  display:flex;flex-direction:column;gap:14px;
  transition:background .18s ease;
  position:relative;
}
.case-card:hover{background:#FAFBFC}
.case-card::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:transparent;
  transition:background .18s ease;
}
.case-card:hover::after{background:var(--accent)}
.case-card .num{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--link);
  font-weight:600;
}
.case-card h3{
  font-family:var(--sans);font-weight:700;font-size:20px;line-height:1.25;
  color:var(--ink);margin:0;letter-spacing:-.01em;
}
.case-card p{
  margin:0;font-size:15px;line-height:1.55;color:var(--ink-2);
}

/* ─── Block 04 — Услуги · табличный layout ──────────────────────── */
.services{
  border-top:2px solid var(--ink);
}
.services-head{
  display:grid;
  grid-template-columns:48px 2fr 2fr 1.4fr;
  gap:32px;
  padding:14px 0 12px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);
  border-bottom:1px solid var(--rule);
}
.service-row{
  display:grid;
  grid-template-columns:48px 2fr 2fr 1.4fr;
  gap:32px;
  padding:32px 0;
  border-bottom:1px solid var(--rule);
  align-items:start;
}
.service-row .code{
  font-family:var(--mono);font-size:14px;font-weight:600;color:var(--link);
  padding-top:2px;
}
.service-row h3{
  font-family:var(--mono);font-size:14px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);margin:0 0 12px;text-transform:uppercase;
}
.service-row .desc{
  font-size:15px;line-height:1.55;color:var(--ink);margin:0;
}
.service-row ul.includes{
  list-style:none;margin:0;padding:0;
  display:flex;flex-direction:column;gap:8px;
  font-size:14px;line-height:1.5;color:var(--ink);
}
.service-row ul.includes li{
  padding-left:18px;position:relative;
}
.service-row ul.includes li::before{
  content:"—";position:absolute;left:0;top:0;color:var(--ink-2);
}
.service-row .price-col{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);
  padding:18px 18px 18px;
}
.service-row .price{
  font-family:var(--mono);font-size:14px;color:var(--ink);line-height:1.4;
}
.service-row .price b{font-size:17px;font-weight:600;display:block;color:var(--ink);margin-top:2px;letter-spacing:-.01em}
.service-row .region{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-2);
  padding-bottom:14px;border-bottom:1px solid var(--rule);
}
.service-row .btn-mini{
  font-family:var(--sans);font-size:14px;font-weight:600;color:var(--link);
  display:inline-flex;align-items:center;gap:8px;
  text-decoration:none;
}
.service-row .btn-mini:hover{color:var(--accent);text-decoration:none}
.service-row .btn-mini .arr{font-family:var(--mono);font-weight:400}

.service-row.flagship{
  border-left:3px solid var(--accent);
  padding-left:24px;
  margin-left:-24px;
  position:relative;
}
.service-row.flagship::before{
  content:"ФЛАГМАН";
  position:absolute;
  left:-3px;top:-1px;
  background:var(--accent);color:#fff;
  font-family:var(--mono);font-size:9px;letter-spacing:.14em;
  padding:4px 8px 3px;
}
.service-row.flagship{padding-top:44px}

/* ─── Block 05 — Сравнительная таблица ──────────────────────────── */
.compare{
  width:100%;
  border-collapse:collapse;
  margin-top:8px;
}
.compare th{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  text-align:left;
  padding:14px 24px;
  color:var(--ink-2);
  background:transparent;
  border-bottom:1px solid var(--rule);
  font-weight:600;
  width:50%;
}
.compare th.ptotech{color:var(--accent)}
.compare td{
  padding:22px 24px;
  font-size:15.5px;
  line-height:1.5;
  vertical-align:top;
  border-bottom:1px solid var(--rule);
  width:50%;
}
.compare td.typ{
  color:var(--ink-2);
  background:transparent;
}
.compare td.pto{
  color:var(--ink);
  background:#fff;
  border-left:1.5px solid var(--accent);
  font-weight:500;
}
.compare tbody tr:last-child td{border-bottom:none}
.compare-wrap{border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}

/* ─── Block 06 — Объекты ────────────────────────────────────────── */
.filters{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-bottom:36px;
}
.filter{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  background:#fff;color:var(--ink);
  border:1px solid var(--rule);
  padding:9px 14px 8px;
  cursor:pointer;
  transition:all .15s ease;
}
.filter:hover{border-color:var(--accent);color:var(--accent)}
.filter.is-active{background:var(--accent);color:#fff;border-color:var(--accent)}
.filter .count{opacity:.55;margin-left:6px}
.filter.is-active .count{opacity:.7}

.portfolio{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--rule);
  border-left:1px solid var(--rule);
}
.pf-card{
  background:#fff;
  border-right:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  padding:24px 22px 26px;
  display:flex;flex-direction:column;gap:14px;
  transition:background .18s ease;
}
.pf-card.is-hidden{display:none}
.pf-card.pf-anim{animation:pf-fade-in .28s ease both}
@keyframes pf-fade-in{
  from{opacity:0;transform:translateY(6px)}
  to{opacity:1;transform:translateY(0)}
}
.show-more{
  display:flex;justify-content:center;
  margin-top:32px;padding-top:24px;
  border-top:1px solid var(--rule);
}
.show-more button{
  font-family:var(--sans);
  font-weight:600;
  font-size:15px;
  color:var(--link);
  background:transparent;border:none;cursor:pointer;
  border-bottom:1.5px solid currentColor;
  padding:4px 2px 6px;
  letter-spacing:.01em;
  transition:color .15s ease;
}
.show-more button:hover{color:var(--accent)}
.show-more button .arr{font-family:var(--mono);font-weight:400;margin-left:4px}
.pf-card:hover{background:#FAFBFC}
.pf-card .pf-tag{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--link);
}
.pf-card h3{
  font-family:var(--sans);font-weight:700;font-size:17px;line-height:1.3;
  color:var(--ink);margin:0;letter-spacing:-.005em;
}
.pf-card dl{
  margin:0;display:flex;flex-direction:column;gap:6px;
  font-size:13px;line-height:1.45;
  border-top:1px solid var(--rule);margin-top:auto;padding-top:14px;
}
.pf-card dl div{display:grid;grid-template-columns:80px 1fr;gap:10px}
.pf-card dt{
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-2);margin:0;padding-top:2px;
}
.pf-card dd{
  margin:0;color:var(--ink);font-size:13px;
}
.pf-card dd.empty,
.obj-card .specs dd.empty{
  color:var(--ink-2);
  font-family:var(--mono);
  font-weight:400;
  font-style:normal;
}
.nda{
  margin-top:28px;
  background:var(--card);
  padding:20px 24px;
  font-size:14px;color:var(--ink-2);
  border-left:3px solid var(--accent);
  line-height:1.55;
}

/* ─── Block 07 — Кейсы ──────────────────────────────────────────── */
.case-list{display:flex;flex-direction:column;gap:0}
.full-case{
  padding:48px 0;
  border-bottom:1px solid var(--rule);
  display:grid;
  grid-template-columns:280px 1fr;
  gap:48px;
}
.full-case:first-child{padding-top:0}
.full-case:last-child{border-bottom:none}
.full-case .case-side{
  display:flex;flex-direction:column;gap:18px;
}
.full-case .case-tags{display:flex;flex-wrap:wrap;gap:6px}
.full-case .case-tags .tag{
  margin:0;background:transparent;border-color:var(--accent);color:var(--accent);
  padding:5px 9px 4px;font-size:10px;
}
.full-case .case-tags .tag .sq{background:var(--accent)}
.full-case h3{
  font-family:var(--sans);font-weight:800;font-size:28px;line-height:1.15;
  color:var(--ink);margin:0;letter-spacing:-.01em;
}
.full-case .case-mark{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);
  border-top:1px solid var(--rule);padding-top:14px;
}
.full-case .case-mark b{color:var(--ink);font-weight:600;display:block;margin-top:4px}
.full-case .case-body{display:flex;flex-direction:column;gap:28px}
.case-section h4{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);margin:0 0 10px;font-weight:600;
}
.case-section p,.case-section li{
  font-size:15.5px;line-height:1.6;color:var(--ink);margin:0;
}
.case-section ul{
  list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;
  margin-top:12px;
}
.case-section li{padding-left:18px;position:relative}
.case-section li::before{content:"—";position:absolute;left:0;color:var(--ink-2)}
.case-section + .case-section{padding-top:18px;border-top:1px solid var(--rule)}
.case-section p + p{margin-top:12px}

/* ─── Block 08 — Кто работает ──────────────────────────────────── */
.person{
  display:grid;
  grid-template-columns:380px 1fr;
  gap:56px;
  align-items:start;
}
.person-photo{
  aspect-ratio:4/5;
  background:var(--card);
  border:1px solid var(--rule);
  overflow:hidden;
}
.person-photo img{
  display:block;
  width:100%;height:100%;
  object-fit:cover;
  object-position:center top;
}
.person-info h3{
  font-family:var(--sans);font-size:32px;font-weight:800;line-height:1.1;
  color:var(--ink);margin:0 0 8px;letter-spacing:-.015em;
}
.person-info .role{
  font-family:var(--mono);font-size:13px;letter-spacing:.08em;color:var(--accent);
  margin-bottom:24px;
}
.person-info p{
  font-size:16.5px;line-height:1.6;color:var(--ink);margin:0 0 14px;max-width:60ch;
}
.docs{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin-top:32px;
}
.doc-card{
  border:1px solid var(--rule);
  padding:20px 18px 18px;
  background:#fff;
  display:flex;flex-direction:column;gap:10px;
  cursor:pointer;
  transition:border-color .15s ease;
}
.doc-card:hover{border-color:var(--accent)}
.doc-card .doc-stamp{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);display:flex;justify-content:space-between;align-items:center;
}
.doc-card .doc-stamp .icon{
  width:18px;height:22px;border:1.5px solid var(--accent);position:relative;
}
.doc-card .doc-stamp .icon::before{
  content:"";position:absolute;left:3px;right:3px;top:6px;height:1.5px;background:var(--accent);box-shadow:0 4px 0 var(--accent),0 8px 0 var(--accent);
}
.doc-card .doc-title{
  font-family:var(--sans);font-size:14px;font-weight:600;color:var(--ink);line-height:1.35;
}
.doc-card .doc-meta{
  font-family:var(--mono);font-size:11px;color:var(--ink-2);letter-spacing:.04em;margin-top:auto;padding-top:8px;border-top:1px solid var(--rule);
}
.person-note{
  margin-top:28px;padding:18px 22px;background:var(--card);
  font-size:14.5px;color:var(--ink);line-height:1.55;
  border-left:3px solid var(--accent);
}

/* ─── Block 09 — Таймлайн ──────────────────────────────────────── */
.timeline{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:0;
  position:relative;
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:84px;height:1.5px;background:var(--accent);opacity:.25;
}
.step{
  padding:32px 24px 28px;
  border-right:1px solid var(--rule);
  display:flex;flex-direction:column;gap:14px;
  position:relative;background:#fff;
}
.step:last-child{border-right:none}
.step-num{
  font-family:var(--mono);font-size:36px;font-weight:600;color:var(--accent);line-height:1;letter-spacing:-.02em;
}
.step-dot{
  position:absolute;left:24px;top:78px;
  width:14px;height:14px;
  background:#fff;border:2px solid var(--accent);
  z-index:2;
}
.step.is-active .step-dot{background:var(--accent)}
.step-title{
  font-family:var(--sans);font-size:18px;font-weight:700;color:var(--ink);
  margin-top:24px;line-height:1.2;
}
.step-time{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-2);
}
.step-body{
  font-size:14px;line-height:1.55;color:var(--ink-2);margin-top:auto;padding-top:6px;
}

/* ─── Block 10 — FAQ ───────────────────────────────────────────── */
.faq{border-top:1px solid var(--rule)}
.faq-item{border-bottom:1px solid var(--rule)}
.faq-q{
  width:100%;text-align:left;background:transparent;border:none;cursor:pointer;
  padding:22px 0;
  display:grid;grid-template-columns:32px 1fr;gap:24px;align-items:center;
  font-family:var(--sans);font-size:18px;font-weight:600;color:var(--ink);letter-spacing:-.005em;
  line-height:1.4;
}
.faq-q:hover{color:var(--accent)}
.faq-q .sym{
  width:32px;height:32px;
  border:1.5px solid var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:18px;color:var(--ink);font-weight:400;
  transition:all .18s ease;
  line-height:1;
}
.faq-item.is-open .faq-q .sym{
  background:var(--accent);color:#fff;border-color:var(--accent);
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s ease, padding .25s ease;
}
.faq-item.is-open .faq-a{max-height:600px;padding:0 0 26px 56px}
.faq-a p{
  margin:0;font-size:16px;line-height:1.6;color:var(--ink);max-width:72ch;
}

/* ─── Block 11 — Контакт ───────────────────────────────────────── */
.contact{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:64px;
  align-items:start;
}
.form{display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);
}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field select,.field textarea{
  border:1px solid var(--rule);background:#fff;
  padding:13px 14px;
  font-family:var(--sans);font-size:15px;color:var(--ink);
  border-radius:0;outline:none;
  transition:border-color .15s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.field textarea{min-height:90px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{
  display:grid;grid-template-columns:18px 1fr;gap:12px;align-items:start;
  font-size:13px;color:var(--ink-2);line-height:1.5;margin-top:4px;cursor:pointer;
}
.check input{
  width:18px;height:18px;border:1px solid var(--ink-2);background:#fff;
  appearance:none;-webkit-appearance:none;cursor:pointer;position:relative;margin:1px 0 0;
}
.check input:checked{background:var(--accent);border-color:var(--accent)}
.check.has-error input{border-color:#DC2626}
.check input:checked::after{
  content:"✓";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:12px;font-weight:700;
}
.form .submit-row{display:flex;align-items:center;gap:20px;margin-top:6px;flex-wrap:wrap}
.form-note{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--ink-2);text-transform:uppercase;
}

/* Validation error state */
.field.has-error input,
.field.has-error select,
.field.has-error textarea{border-color:#DC2626}
.field-err{
  font-family:var(--mono);font-size:11px;color:#DC2626;
  margin-top:5px;letter-spacing:.02em;
}

/* Form status messages */
.form-status{display:none}
.form-status.is-success{
  display:block;
  padding:28px 32px;
  background:var(--bg-2);
  border-left:3px solid #10B981;
}
.form-status .fs-title{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:#059669;margin:0 0 10px;
}
.form-status p{margin:0;font-size:16px;line-height:1.55;color:var(--ink)}
.form-status.is-error{
  display:block;
  margin-top:12px;
  padding:16px 20px;
  background:#FEF2F2;
  border-left:3px solid #DC2626;
}
.form-status.is-error p{color:var(--ink);font-size:14px;margin:0}
.form-status.is-error a{color:var(--link)}

.contacts-side h3{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);
  margin:0 0 16px;font-weight:600;
}
.contact-btn{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  border:1.5px solid var(--ink);
  background:#fff;color:var(--ink);
  font-family:var(--sans);font-weight:600;font-size:16px;
  text-decoration:none;
  margin-bottom:10px;
  transition:all .15s ease;
}
.contact-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent);text-decoration:none}
.contact-btn.tg{background:var(--accent);color:#fff;border-color:var(--accent)}
.contact-btn.tg:hover{background:var(--link);border-color:var(--link)}
.contact-btn .ic{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  opacity:.7;font-weight:500;
}
.contact-line{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 0;border-bottom:1px solid var(--rule);
  font-size:15px;color:var(--ink);
}
.contact-line .lbl{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);
}
.contact-line a{color:var(--ink);font-weight:500}
.contact-line a:hover{color:var(--link)}
.requisites{
  margin-top:24px;padding:18px 20px;background:var(--card);
  font-family:var(--mono);font-size:12px;line-height:1.7;color:var(--ink);
}
.requisites .req-label{
  color:var(--ink-2);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:10px;
}
.requisites div{display:grid;grid-template-columns:90px 1fr;gap:14px}
.requisites div span:first-child{color:var(--ink-2)}

/* ─── Block 12 — Footer ────────────────────────────────────────── */
.footer{
  background:var(--dark);color:#fff;
}
.footer-inner{
  max-width:var(--maxw);margin:0 auto;
  padding:56px var(--gutter) 28px;
  display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;
}
.footer .brand{color:#fff}
.footer .brand .brand-mark{background:#fff}
.footer-tag{
  font-size:14px;line-height:1.55;color:rgba(255,255,255,.65);
  margin-top:20px;max-width:34ch;
}
.footer-col h4{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin:0 0 18px;font-weight:600;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#fff;font-size:14px;text-decoration:none}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-req{
  font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.5);line-height:1.7;margin-top:16px;
}
.footer-req b{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  max-width:var(--maxw);margin:0 auto;
  padding:18px var(--gutter);
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7);text-decoration:none}
.footer-bottom a:hover{color:#fff;text-decoration:underline}

/* ─── Floating Telegram (engineering-report style) ─────────────── */
.tg-float{
  position:fixed;right:24px;bottom:24px;z-index:60;
  display:inline-flex;align-items:center;gap:14px;
  height:48px;min-width:220px;padding:0 22px;
  background:var(--accent);color:#fff;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  font-weight:600;text-transform:uppercase;text-decoration:none;
  border:1px solid var(--accent);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .22s ease, background .15s ease, border-color .15s ease, transform .22s ease;
}
.tg-float.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.tg-float::after{
  content:'Нажимая — согласие с политикой ПД ptotech.ru/privacy.html';
  position:absolute;bottom:calc(100% + 6px);right:0;
  background:rgba(15,24,48,.88);color:rgba(255,255,255,.8);
  font-family:var(--mono);font-size:10px;letter-spacing:.04em;
  white-space:nowrap;padding:5px 12px;pointer-events:none;
  opacity:0;transition:opacity .15s;
}
.tg-float.is-visible:hover::after{opacity:1}
.tg-float:hover{background:var(--dark);border-color:var(--dark);text-decoration:none}
.tg-float .arr{font-family:var(--mono);font-weight:400;font-size:14px;letter-spacing:0}
.tg-bar{display:none}

/* ─── Back-to-top ──────────────────────────────────────────────── */
.to-top{
  position:fixed;left:24px;bottom:24px;z-index:55;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:0 16px;height:40px;min-width:80px;
  background:transparent;color:var(--accent);
  border:1px solid var(--accent);
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  font-weight:600;
  cursor:pointer;text-decoration:none;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .22s ease, background .15s ease, color .15s ease, transform .22s ease;
}
.to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--accent);color:#fff;text-decoration:none}
.to-top .arrow{font-family:var(--mono);font-size:13px}
/* ─── responsive ─────────────────────────────────────────────────── */

/* Tablet + Mobile (≤1023px) */
@media (max-width:1023px){
  .doc-header-inner{grid-template-columns:auto 1fr auto;gap:16px}
  .doc-meta{display:none}
  .burger{display:flex}
  nav.doc-nav{
    display:none;
    position:fixed;inset:0;z-index:45;
    background:var(--bg);
    flex-direction:column;align-items:center;justify-content:center;
    gap:32px;padding:32px;
  }
  nav.doc-nav.is-open{display:flex}
  nav.doc-nav.is-open a{font-size:22px;font-weight:600}
  .hero-inner{grid-template-columns:1fr;gap:48px;min-height:auto;padding-bottom:48px}
  .hero-right{min-height:420px}
  .card-grid-2{grid-template-columns:1fr}
  .case-grid,.portfolio{grid-template-columns:repeat(2,1fr)}
  .service-row,.services-head{grid-template-columns:42px 1.5fr 1.4fr 1fr;gap:20px}
  .full-case{grid-template-columns:1fr;gap:28px}
  .full-case .case-mark{padding-top:14px}
  .person{grid-template-columns:280px 1fr;gap:36px}
  .timeline{grid-template-columns:1fr;border-top:none;border-bottom:none}
  .timeline::before{display:none}
  .step{border-right:none;border-bottom:1px solid var(--rule);padding-left:64px;position:relative}
  .step:last-child{border-bottom:none}
  .step-dot{left:42px;top:42px}
  .step-num{position:absolute;top:24px;left:24px}
  .contact{grid-template-columns:1fr;gap:48px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px}
  .docs{grid-template-columns:repeat(2,1fr)}
}

/* Mobile (≤767px) */
@media (max-width:767px){
  :root{--gutter:20px}
  .doc-header-inner{grid-template-columns:auto 1fr auto;gap:12px}
  .sheet-no{display:none}
  .section-head{grid-template-columns:1fr;border-bottom:1px solid var(--rule)}
  h1.hero-h1{font-size:36px}
  .section-title{font-size:30px}
  .metrics{flex-direction:column}
  .metric{border-right:none;border-bottom:1px solid var(--rule)}
  .metric:last-child{border-bottom:none}
  .specs dl{grid-template-columns:1fr}
  .specs dt{padding-bottom:0;border-bottom:none}
  .specs dd{padding-top:4px}
  .case-grid,.portfolio{grid-template-columns:1fr}
  .service-row,.services-head{grid-template-columns:1fr;gap:14px}
  .services-head{display:none}
  .service-row .price-col{margin-top:8px}
  .compare th,.compare td{padding:14px 14px;font-size:14px}
  .cycle-frame{inset:20px 16px;padding:24px 18px 20px}
  .cycle .callout{font-size:9px;padding:5px 8px}
  .tag-row{flex-direction:column;align-items:flex-start;gap:10px}
  .geo-tag{margin-left:0}
  .person{grid-template-columns:1fr;gap:24px}
  .person-photo{max-width:340px}
  .docs{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:32px;padding-bottom:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .faq-q{font-size:16px}
  .faq-item.is-open .faq-a{padding-left:0}
  .step-num{top:32px}
  .step-dot{display:none}
  .to-top{
    left:auto;right:16px;bottom:70px;
    width:44px;min-width:44px;height:44px;padding:0;gap:0;
    font-size:18px;letter-spacing:0;
  }
  .to-top .label{display:none}
  .to-top .arrow{font-size:18px}
  /* mobile sticky Telegram bar */
  .tg-float{display:none}
  .tg-bar{
    display:flex;align-items:center;justify-content:center;gap:14px;
    position:fixed;left:0;right:0;bottom:0;z-index:60;
    height:56px;background:var(--accent);color:#fff;
    font-family:var(--mono);font-weight:600;font-size:13px;
    letter-spacing:.14em;text-transform:uppercase;
    text-decoration:none;
    transform:translateY(100%);
    transition:transform .25s ease;
  }
  .tg-bar.is-visible{transform:translateY(0)}
  .tg-bar .arr{font-family:var(--mono);font-weight:400;font-size:15px;letter-spacing:0}
  body{padding-bottom:56px}
}

/* Large desktop (≥1440px) */
@media (min-width:1440px){
  :root{--gutter:64px}
  .block-inner{padding-top:80px;padding-bottom:112px}
}

/* ─── Scroll reveal ───────────────────────────────────────────────── */
.reveal{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .28s ease, transform .28s ease;
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}

/* ─── Lightbox ────────────────────────────────────────────────────── */
.lb{
  display:none;
  position:fixed;inset:0;z-index:200;
  align-items:center;justify-content:center;
  padding:24px;
}
.lb.is-open{display:flex}
.lb-backdrop{
  position:absolute;inset:0;
  background:rgba(15,24,48,.92);
  cursor:pointer;
}
.lb-frame{
  position:relative;z-index:1;
  max-width:min(90vw,700px);
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.lb-img{
  display:block;
  max-width:100%;max-height:82vh;
  object-fit:contain;
}
.lb-caption{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(255,255,255,.65);text-align:center;
}
.lb-close{
  position:fixed;top:20px;right:24px;z-index:2;
  background:transparent;border:1px solid rgba(255,255,255,.35);
  color:#fff;width:44px;height:44px;
  font-family:var(--mono);font-size:22px;line-height:1;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .15s ease;
}
.lb-close:hover{background:rgba(255,255,255,.12)}

/* ─── Privacy page ────────────────────────────────────────────────── */
.prv-meta{
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  color:var(--ink-2);margin-bottom:48px;padding-bottom:20px;
  border-bottom:1px solid var(--rule);
}
.prv-meta b{color:var(--accent)}
.prv-sec{
  display:block;font-family:var(--mono);font-size:10px;
  letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);font-weight:400;margin-bottom:5px;
}
.prv-content h2{
  font-family:var(--sans);font-size:19px;font-weight:700;
  color:var(--accent);margin:44px 0 16px;
  padding-top:8px;border-top:1px solid var(--rule);
}
.prv-content h2:first-child{margin-top:0;border-top:none;padding-top:0}
.prv-content p{margin:0 0 14px;line-height:1.65;max-width:72ch}
.prv-content ul,.prv-content ol{
  margin:0 0 14px;padding-left:22px;line-height:1.65;max-width:72ch;
}
.prv-content li{margin-bottom:8px}
.prv-content .mono{
  font-family:var(--mono);font-size:12px;color:var(--accent);
  background:var(--card);padding:1px 6px;white-space:nowrap;
}
.prv-back{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent);text-decoration:none;margin-bottom:40px;
}
.prv-back:hover{text-decoration:underline;text-underline-offset:3px}