:root{
  --paper:#EEEEE8; --card:#FBFBF7; --ink:#0E1B2A;
  --ink-75:rgba(14,27,42,.75); --ink-60:rgba(14,27,42,.6);
  --line:rgba(14,27,42,.16);
  --red:#E8452B; --blue:#2153CC; --green:#2FA36B;
  --gridc:rgba(14,27,42,.05); --gridm:rgba(14,27,42,.085);
  --disp:'Unbounded',system-ui,sans-serif;
  --body:'Golos Text',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--body); color:var(--ink); line-height:1.6;
  background:
    linear-gradient(var(--gridm) 1px,transparent 1px),
    linear-gradient(90deg,var(--gridm) 1px,transparent 1px),
    linear-gradient(var(--gridc) 1px,transparent 1px),
    linear-gradient(90deg,var(--gridc) 1px,transparent 1px),
    var(--paper);
  background-size:140px 140px,140px 140px,28px 28px,28px 28px;
}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
img,svg{display:block}
a{color:inherit}
.wrap{max-width:1180px;margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}
.skip{position:absolute;left:-999px;top:8px;z-index:99;background:var(--ink);color:#fff;padding:10px 16px;font-family:var(--mono);font-size:12px}
.skip:focus{left:8px}
code{font-family:var(--mono);font-size:.92em;background:rgba(14,27,42,.07);border:1px solid var(--line);padding:.08em .38em}

.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;background:var(--ink);color:#DFE7F1;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;padding:9px clamp(16px,3vw,28px)}
.topbar__status{display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);animation:pulse 1.6s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(47,163,107,.6)}100%{box-shadow:0 0 0 9px rgba(47,163,107,0)}}

/* ---- шапка ---- */
.masthead{position:relative;background:var(--ink);color:#F3F5F1;border-bottom:3px solid var(--ink);
  background-image:linear-gradient(rgba(96,140,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,140,255,.07) 1px,transparent 1px);
  background-size:32px 32px}
.masthead::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.028) 0 2px,transparent 2px 14px)}
.masthead__in{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;width: 100%;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand__mark{width:42px;height:42px;color:#fff;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.brand:hover .brand__mark{transform:rotate(90deg)}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__text b{font-family:var(--disp);font-weight:700;font-size:17px;letter-spacing:.08em}
.brand__text small{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;color:rgba(243,245,241,.55);text-transform:uppercase}
.nav{display:flex;flex-wrap:wrap;gap:6px}
.nav__link{position:relative;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  text-decoration:none;color:rgba(243,245,241,.72);padding:10px 14px;transition:color .18s,transform .18s,background .18s}
.nav__link sup{color:var(--red);font-size:9px;margin-right:5px}
.nav__link::after{content:'';position:absolute;left:14px;right:14px;bottom:5px;height:3px;background:var(--red);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav__link:hover{color:#fff;transform:translateY(-1px)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-on{color:#fff;background:rgba(232,69,43,.14)}
.nav__link.is-on::after{transform:scaleX(1)}

/* ---- крошки ---- */
.crumbs{background:var(--card);border-bottom:2px solid var(--ink)}
.crumbs__in{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;
  letter-spacing:.08em;text-transform:uppercase;padding-block:10px}
.crumbs__link{text-decoration:none;padding-bottom:2px;border-bottom:2px solid transparent;transition:.18s}
.crumbs__link:hover{color:var(--red);border-color:var(--red)}
.crumbs__sep{color:var(--red)}
.crumbs__meta{margin-left:auto;color:var(--ink-60);letter-spacing:.04em;text-transform:none}

/* ---- кнопки ---- */
.btn{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  text-decoration:none;color:var(--ink);background:var(--card);border:2px solid var(--ink);
  box-shadow:5px 5px 0 var(--ink);padding:14px 22px;transition:transform .16s,box-shadow .16s,background .16s}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--ink)}
.btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}
.btn--red{background:var(--red);color:#fff}

.tag{font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  background:var(--red);color:#fff;padding:5px 10px;border:1.5px solid var(--ink)}
.tag--blue{background:var(--blue)}

/* ---- первый отдел: чертёж ---- */
.assembly{position:relative;overflow:hidden;padding-block:clamp(48px,7vw,92px)}
.assembly__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,64px);align-items:center}
.kicker{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--red)}
.kicker::before{content:'';width:26px;height:2px;background:var(--red)}
.display{font-family:var(--disp);font-weight:900;text-transform:uppercase;line-height:1;letter-spacing:-.01em;
  font-size:clamp(2.5rem,6.2vw,4.6rem);margin:18px 0 20px}
.display--page{font-size:clamp(2.1rem,5vw,3.6rem)}
.hollow{color:transparent;-webkit-text-stroke:2px var(--ink)}
.lead{max-width:52ch;font-size:17px;color:var(--ink-75)}
.assembly__cta{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px}
.assembly__meta{display:flex;gap:10px;flex-wrap:wrap;list-style:none;margin-top:30px}
.assembly__meta li{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  border:1.5px solid var(--ink);background:var(--card);padding:7px 11px}
.reg{position:absolute;width:22px;height:22px;opacity:.5;pointer-events:none}
.reg::before,.reg::after{content:'';position:absolute;background:var(--ink)}
.reg::before{left:50%;top:0;width:1.5px;height:100%}
.reg::after{top:50%;left:0;height:1.5px;width:100%}
.reg--tr{right:22px;top:22px}
.reg{left:22px;bottom:22px}

/* стенд сборки */
.rig{position:relative;display:grid;gap:20px;padding:26px 8px 10px}
.rig::before{content:'';position:absolute;left:52%;top:0;bottom:34px;border-left:2px dashed rgba(14,27,42,.35)}
.rig__cog{position:absolute;width:min(300px,70%);right:-46px;top:-56px;color:var(--ink);opacity:.14;animation:spin 42s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.plate{position:relative;display:flex;flex-direction:column;gap:4px;background:var(--card);
  border:2px solid var(--ink);box-shadow:6px 6px 0 var(--ink);padding:16px 20px 16px 34px;
  font-family:var(--mono);cursor:default;transition:transform .25s,box-shadow .25s;animation:plateIn .7s cubic-bezier(.2,.7,.2,1) both}
.plate::before{content:'';position:absolute;left:12px;top:50%;width:8px;height:8px;margin-top:-4px;
  border:2px solid var(--ink);border-radius:50%;background:var(--paper)}
.plate--head{transform:translateX(0);animation-delay:.1s}
.plate--index{transform:translateX(30px);border-left:6px solid var(--red);animation-delay:.26s}
.plate--foot{transform:translateX(10px);animation-delay:.42s}
.plate:hover{box-shadow:10px 10px 0 var(--ink);transform:translateX(36px)}
.plate--head:hover{transform:translateX(6px)}
.plate--foot:hover{transform:translateX(16px)}
@keyframes plateIn{from{opacity:0;transform:translateY(26px)}to{opacity:1}}
.plate__file{font-weight:600;font-size:13.5px}
.plate__note{font-size:11px;color:var(--ink-60)}
.plate__tag{position:absolute;top:-11px;right:12px;font-size:9px;letter-spacing:.16em;text-transform:uppercase;
  background:var(--red);color:#fff;border:1.5px solid var(--ink);padding:3px 8px}
.rig__cap{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-60);margin-top:6px}

/* бегущая строка */
.ticker{overflow:hidden;background:var(--red);border-block:3px solid var(--ink);color:#160B08}
.ticker__track{display:flex;width:max-content;animation:tick 26s linear infinite;padding-block:9px}
.ticker:hover .ticker__track{animation-play-state:paused}
.ticker__track span{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;padding:0 18px;white-space:nowrap}
.ticker__track b{font-size:10px;align-self:center}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---- секции ---- */
.section{padding-block:clamp(52px,7vw,86px);border-top:2px solid var(--ink)}
.section--alt{background:var(--card)}
.section--lead{border-top:0;padding-top:clamp(44px,6vw,72px)}
.sec-head{position:relative;margin-bottom:44px;padding-top:16px;display:grid;grid-template-columns:auto auto 1fr;gap:18px;align-items:baseline}
.sec-head::before{content:'';position:absolute;top:0;left:0;right:0;border-top:2px solid var(--ink)}
.sec-head::after{content:'';position:absolute;top:-5px;left:0;width:2px;height:12px;background:var(--red)}
.sec-head__idx{font-family:var(--mono);font-weight:600;font-size:13px;color:var(--red);letter-spacing:.1em}
.sec-head h2{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:clamp(1.45rem,3vw,2.1rem);line-height:1.05}
.sec-head p{justify-self:end;font-size:14px;color:var(--ink-60);max-width:34ch;text-align:right}

/* шаги */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:52px}
.step{background:var(--card);border:2px solid var(--ink);box-shadow:6px 6px 0 var(--ink);padding:24px;
  transition:transform .22s,box-shadow .22s}
.step:hover{transform:translateY(-6px);box-shadow:9px 12px 0 var(--ink)}
.step__num{display:block;font-family:var(--disp);font-weight:900;font-size:2.6rem;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--ink);margin-bottom:14px;transition:.22s}
.step:hover .step__num{color:var(--red);-webkit-text-stroke:1.5px var(--red)}
.step__name{font-family:var(--disp);font-size:15px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--ink-75)}

/* маршруты */
.route{display:grid;gap:14px}
.row{display:grid;grid-template-columns:minmax(0,1.15fr) 92px minmax(0,1fr) auto;gap:16px;align-items:center;
  background:var(--card);border:2px solid var(--ink);box-shadow:5px 5px 0 var(--ink);
  padding:16px 20px;font-family:var(--mono);font-size:13.5px;text-decoration:none;
  transition:transform .2s,box-shadow .2s}
a.row:hover{transform:translateX(8px);box-shadow:8px 8px 0 var(--ink)}
.row__url{font-weight:600}
.row__file{color:var(--ink-75)}
.row__arr{position:relative;height:2px;background:repeating-linear-gradient(90deg,var(--ink) 0 6px,transparent 6px 11px);transition:.2s}
.row__arr::after{content:'';position:absolute;right:-2px;top:50%;transform:translateY(-50%);
  border-left:9px solid var(--ink);border-top:5px solid transparent;border-bottom:5px solid transparent}
a.row:hover .row__arr{background:repeating-linear-gradient(90deg,var(--red) 0 6px,transparent 6px 11px)}
a.row:hover .row__arr::after{border-left-color:var(--red)}
.row--miss{border-style:dashed;box-shadow:none;background:transparent}
.row--miss:hover{box-shadow:5px 5px 0 var(--ink)}
.row--now{border-left:8px solid var(--red);animation:nowPulse 2.4s ease-in-out infinite}
@keyframes nowPulse{0%,100%{box-shadow:5px 5px 0 var(--ink)}50%{box-shadow:5px 5px 0 var(--red)}}

/* два столбца */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,52px);align-items:start}

/* дерево */
.tree{background:var(--ink);color:#D9E2EE;border:2px solid var(--ink);box-shadow:8px 8px 0 var(--red);
  padding:26px 28px;font-family:var(--mono);font-size:13px;line-height:2.05;overflow-x:auto}
.tree__row{white-space:pre;transition:transform .15s,background .15s}
.tree__row:hover{transform:translateX(6px);background:rgba(255,255,255,.06)}
.tree .d{color:#8FA5BD}
.tree .c{color:#6C8299;font-size:11.5px}

.listcheck{list-style:none;display:grid;gap:14px}
.listcheck li{position:relative;background:var(--card);border:2px solid var(--ink);padding:16px 18px 16px 52px;font-size:15px;box-shadow:4px 4px 0 var(--ink)}
.listcheck li::before{content:'✓';position:absolute;left:16px;top:14px;width:24px;height:24px;display:grid;place-items:center;
  background:var(--red);color:#fff;border:2px solid var(--ink);font-weight:700;font-size:13px}

/* защита + код */
.guard__grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.card{background:var(--card);border:2px solid var(--ink);box-shadow:6px 6px 0 var(--ink);padding:22px 24px;transition:transform .22s,box-shadow .22s}
.card:hover{transform:translateY(-4px);box-shadow:8px 10px 0 var(--ink)}
.card h3{font-family:var(--disp);font-size:15px;font-weight:700;text-transform:uppercase;margin:14px 0 8px}
.card p{font-size:14.5px;color:var(--ink-75);margin-bottom:16px}
.card__top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:4px}
.card__top--dark{background:var(--ink);padding:12px 16px;border:2px solid var(--ink);border-bottom:0}
pre{background:var(--ink);color:#D9E2EE;border:2px solid var(--ink);padding:18px 20px;overflow-x:auto;
  font-family:var(--mono);font-size:12.5px;line-height:1.75;tab-size:4}
.copybtn{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  background:var(--card);border:1.5px solid var(--ink);padding:6px 10px;cursor:pointer;box-shadow:3px 3px 0 var(--ink);transition:.15s}
.copybtn:hover{transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--ink)}
.copybtn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.copybtn.ok{background:var(--green);color:#fff;border-color:var(--ink)}

/* шаблон */
.tpl__steps{list-style:none;display:grid;gap:14px;counter-reset:s}
.tpl__steps li{background:var(--paper);border:2px solid var(--ink);padding:16px 18px;font-size:15px;box-shadow:4px 4px 0 var(--ink)}
.tpl__steps b{display:inline-block;font-family:var(--mono);color:var(--red);margin-right:10px}
.tpl__code .card__top--dark{margin:0}
.tpl__code pre{margin:0}

/* каталог страниц */
.page{display:grid;grid-template-columns:78px 1fr auto 40px;gap:18px;align-items:center;
  background:var(--card);border:2px solid var(--ink);box-shadow:5px 5px 0 var(--ink);
  padding:20px 24px;margin-bottom:14px;text-decoration:none;transition:background .2s,color .2s,transform .2s,box-shadow .2s}
.page:hover{background:var(--ink);color:var(--paper);transform:translateX(8px);box-shadow:8px 8px 0 var(--red)}
.page__num{font-family:var(--disp);font-weight:900;font-size:1.7rem;color:transparent;-webkit-text-stroke:1.5px var(--ink)}
.page:hover .page__num{-webkit-text-stroke:1.5px var(--red)}
.page__name{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:15px;letter-spacing:.03em}
.page__name small{display:block;font-family:var(--mono);font-weight:400;font-size:10px;letter-spacing:.14em;color:var(--ink-60);text-transform:none;margin-top:4px}
.page:hover .page__name small{color:rgba(238,238,232,.6)}
.page__path{font-family:var(--mono);font-size:12px;color:var(--ink-60)}
.page:hover .page__path{color:rgba(238,238,232,.75)}
.page__arr{font-size:20px;transition:transform .2s}
.page:hover .page__arr{transform:translateX(8px);color:var(--red)}
.page--dashed{border-style:dashed;box-shadow:none;background:transparent}
.page--dashed:hover{box-shadow:8px 8px 0 var(--red)}

/* паспорт */
.passport{position:relative;margin:clamp(52px,7vw,86px) auto 0;background:var(--card);border:2px solid var(--ink);
  box-shadow:6px 6px 0 var(--ink);padding:26px 28px;max-width:1180px;width:calc(100% - 2*clamp(16px,4vw,40px))}
.content .wrap .passport{width:auto;margin-top:0}
.passport__head{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.passport__title{font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:19px}
.passport__stamp{margin-left:auto;font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.22em;
  text-transform:uppercase;color:var(--red);border:2px double var(--red);padding:7px 13px;transform:rotate(-6deg)}
.in .passport__stamp{animation:stamp .5s cubic-bezier(.2,.7,.3,1.4) both}
@keyframes stamp{from{transform:rotate(-6deg) scale(2);opacity:0}to{transform:rotate(-6deg) scale(1);opacity:1}}
.passport__list{display:grid;grid-template-columns:1fr 1fr;gap:0 34px}
.passport__list>div{display:flex;justify-content:space-between;gap:16px;padding:11px 2px;border-top:1px dashed var(--line)}
.passport__list dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-60);padding-top:2px}
.passport__list dd{font-family:var(--mono);font-size:13px;font-weight:600;text-align:right;word-break:break-all}

/* ---- подвал ---- */
.footer{position:relative;margin-top:clamp(52px,7vw,86px);background:var(--ink);color:#D9E2EE;overflow:hidden}
.footer::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 2px,transparent 2px 14px)}
.footer__word{font-family:var(--disp);font-weight:900;text-transform:uppercase;white-space:nowrap;
  font-size:clamp(3.4rem,11vw,9rem);line-height:1;padding:26px 20px 0;text-align:center;
  color:transparent;-webkit-text-stroke:1.5px rgba(217,226,238,.16);user-select:none}
.footer__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:36px;padding-block:44px}
.footer__logo{font-family:var(--disp);font-size:15px;letter-spacing:.08em;display:block;margin-bottom:12px}
.footer__col p{font-size:14px;color:rgba(217,226,238,.66);max-width:38ch}
.footer__cap{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--red);margin-bottom:14px}
.footer__col a{display:block;text-decoration:none;font-size:14.5px;padding:4px 0;color:rgba(217,226,238,.8);transition:.18s}
.footer__col a:hover{color:#fff;transform:translateX(6px)}
.footer__tech{display:flex;flex-direction:column;font-family:var(--mono);font-size:12px}
.footer__tech span:not(.footer__cap){color:rgba(217,226,238,.7);padding:3px 0}
.footer__bar{position:relative;z-index:1;border-top:1px solid rgba(217,226,238,.18)}
.footer__bar-in{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-block:14px;
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(217,226,238,.55)}

/* ---- 404 ---- */
.err{border-top:0}
.err__in{display:grid;grid-template-columns:280px 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.err__cog{width:100%;color:var(--ink);opacity:.75;animation:wobble 3.4s ease-in-out infinite}
@keyframes wobble{0%,100%{transform:rotate(-4deg)}50%{transform:rotate(7deg)}}
.err__uri{font-family:var(--mono);font-size:13px;background:var(--card);border:2px dashed var(--ink);padding:12px 16px;margin:20px 0 26px}

/* ---- появление при скролле ---- */
[data-rev]{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
[data-rev].in{opacity:1;transform:none}

/* ---- адаптив ---- */
@media (max-width:1000px){
  .assembly__grid,.split,.guard__grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .sec-head{grid-template-columns:auto 1fr}
  .sec-head p{display:none}
  .err__in{grid-template-columns:1fr}
  .err__cog{max-width:220px}
  .passport__list{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .topbar__brand{display:none}
  .row{grid-template-columns:1fr auto;gap:8px}
  .row__arr{display:none}
  .row .tag{justify-self:start}
  .page{grid-template-columns:56px 1fr 30px}
  .page__path{display:none}
  .plate--index,.plate--head,.plate--foot{transform:none}
  .footer__grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  [data-rev]{opacity:1;transform:none}
}