/* Вариант B — «Технический паспорт»: страница как лист чертежа.
   Калька с миллиметровой сеткой, рамка листа, штамп ГОСТ в углу, выноски на фото.
   Три цвета логотипа = три направления. */
:root{
  --paper:#e9ecec; --paper2:#dfe3e3; --sheet:#f5f6f5; --ink:#101316; --ink2:#4b5358; --ink3:#7d868b;
  --grid:rgba(16,19,22,.055); --rule:rgba(16,19,22,.22);
  --red:#e5202a; --orange:#f26a1b; --yellow:#f4b000; --yellow-ink:#8a6400;
  --acc:var(--orange); --acc-ink:var(--orange);
  --fd:'Tektur','Bahnschrift','Arial Narrow',sans-serif;
  --fb:'Golos Text',system-ui,'Segoe UI',Arial,sans-serif;
  --fm:'JetBrains Mono',ui-monospace,Consolas,monospace;
  --w:1280px;
  color-scheme:light;
}
body[data-page="vols"]{--acc:var(--red);--acc-ink:var(--red)}
body[data-page="svai"]{--acc:var(--yellow);--acc-ink:var(--yellow-ink)}
body[data-page="metall"]{--acc:var(--orange);--acc-ink:#c4510c}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font:400 16px/1.6 var(--fb);overflow-x:hidden;
  background-color:var(--paper);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px),
    linear-gradient(rgba(16,19,22,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(16,19,22,.03) 1px,transparent 1px);
  background-size:80px 80px,80px 80px,16px 16px,16px 16px}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--fd);font-weight:700;margin:0;line-height:1;letter-spacing:-.01em;text-wrap:balance}
p{margin:0}
:focus-visible{outline:2px dashed var(--acc);outline-offset:3px}
.wrap{max-width:var(--w);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.mono{font-family:var(--fm);font-size:12px;letter-spacing:.04em;text-transform:uppercase}
.lbl{font-family:var(--fm);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);display:flex;gap:12px;align-items:center}
.lbl::before{content:"";width:10px;height:10px;border:1.5px solid currentColor;transform:rotate(45deg)}
.lbl.c{color:var(--acc-ink)}

/* sheet frame + zones (desktop) */
.frame{position:fixed;inset:10px;border:1px solid var(--rule);pointer-events:none;z-index:40}
.frame::before,.frame::after{content:"";position:absolute;font:500 10px var(--fm);color:var(--ink3)}
.zones-x,.zones-y{position:fixed;display:flex;font:500 10px/1 var(--fm);color:var(--ink3);z-index:41;pointer-events:none}
.zones-x{top:0;left:10px;right:10px;height:10px;justify-content:space-around;align-items:center}
.zones-y{left:0;top:10px;bottom:10px;width:10px;flex-direction:column;justify-content:space-around;align-items:center}


/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(233,236,236,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--paper)}
.top .wrap{display:flex;align-items:center;gap:26px;height:72px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none}
.logo svg{width:44px}
.logo b{font:700 18px/1 var(--fd);letter-spacing:.02em}
.logo small{display:block;font:500 10px/1 var(--fm);color:var(--ink3);text-transform:uppercase;letter-spacing:.06em;margin-top:5px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{font:500 12px/1 var(--fm);text-transform:uppercase;letter-spacing:.05em;text-decoration:none;padding:10px 12px;border:1px solid transparent;display:flex;gap:8px;align-items:center}
.nav a i{font-style:normal;width:8px;height:8px;display:inline-block}
.nav a:hover,.nav a.on{border-color:var(--ink)}
.tel{font:600 15px/1.1 var(--fb);text-decoration:none;white-space:nowrap;text-align:right}
.tel small{display:block;font:400 10px var(--fm);color:var(--ink3);text-transform:uppercase;letter-spacing:.05em}
.burger{display:none;margin-left:auto;border:1px solid var(--ink);background:none;font:600 12px var(--fm);padding:10px 12px;cursor:pointer;color:var(--ink)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:14px;padding:16px 22px;background:var(--ink);color:var(--paper);font:600 13px/1 var(--fm);text-transform:uppercase;letter-spacing:.06em;text-decoration:none;border:1px solid var(--ink);cursor:pointer;position:relative;transition:background .2s,color .2s}
.btn::after{content:"→";font-size:15px;transition:transform .2s}
.btn:hover{background:var(--acc);border-color:var(--acc);color:var(--ink)}
.btn:hover::after{transform:translateX(4px)}
.btn.out{background:transparent;color:var(--ink)}
.btn.out:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn.dn::after{content:"↓"}
.btn.ext::after{content:"↗"}

/* hero main: triptych */
.hero{padding:56px 0 0}
.hero .head{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:end;margin-bottom:34px}
.hero h1{font-size:clamp(34px,9.6vw,128px);letter-spacing:-.03em;line-height:.9}
.hero h1 span{display:block}
.hero h1 .o{color:transparent;-webkit-text-stroke:1.5px var(--ink)}
.hero .aside{max-width:340px;display:grid;gap:18px;padding-bottom:8px}
.hero .aside p{color:var(--ink2);font-size:15px}
.tri{display:flex;gap:10px;height:clamp(380px,58vh,600px)}
.tri a{position:relative;flex:1;overflow:hidden;text-decoration:none;color:#fff;transition:flex .6s cubic-bezier(.2,.8,.2,1);border:1px solid var(--ink);min-width:0;isolation:isolate}
.tri a:hover,.tri a:focus-visible{flex:2.2}
.tri img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;filter:grayscale(1) contrast(1.05);transition:filter .6s,transform .8s}
.tri a:hover img{filter:none;transform:scale(1.04)}
.tri a::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,rgba(10,12,14,.85) 0%,rgba(10,12,14,.15) 55%,rgba(10,12,14,.35) 100%)}
.tri .k{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;padding:16px 18px;font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em}
.tri .k b{padding:5px 8px;color:var(--ink);font-weight:600}
.tri .t{position:absolute;left:18px;right:18px;bottom:18px}
.tri h2{font-size:clamp(24px,2.6vw,40px);line-height:.95;margin-bottom:12px}
.tri .t p{font-size:14px;opacity:.85;max-width:38ch;max-height:0;overflow:hidden;transition:max-height .5s,opacity .5s;opacity:0}
.tri a:hover .t p,.tri a:focus-visible .t p{max-height:120px;opacity:.9}
.tri .t .d{font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;margin-top:12px;display:flex;gap:8px;align-items:center}
.tri .bar{position:absolute;left:0;right:0;bottom:0;height:6px}

/* dimension line */
.dim{position:relative;display:flex;align-items:center;gap:0;margin:26px 0 0;font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;color:var(--ink2)}
.dim::before,.dim::after{content:"";width:1px;height:18px;background:var(--ink)}
.dim i{flex:1;height:1px;background:var(--ink);position:relative}
.dim i::before,.dim i::after{content:"";position:absolute;top:-4px;border:4.5px solid transparent}
.dim i:first-of-type::before{left:0;border-right:9px solid var(--ink);border-left:0}
.dim i:last-of-type::after{right:0;border-left:9px solid var(--ink);border-right:0}
.dim span{padding:0 14px;white-space:nowrap}

/* sections */
.sec{padding:110px 0;position:relative}
.sec.sheet{background:var(--sheet);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.sh{display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:start;margin-bottom:56px;border-top:2px solid var(--ink);padding-top:18px}
.sh .no{font:700 15px/1 var(--fm);padding:6px 9px;background:var(--ink);color:var(--paper)}
.sh h2{font-size:clamp(32px,4.4vw,64px);letter-spacing:-.02em;max-width:18ch}
.sh p{max-width:40ch;color:var(--ink2);font-size:15px}

/* passport table */
.pass{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:start}
.kv{width:100%;border-collapse:collapse;font-size:15px}
.kv td{padding:14px 0;border-bottom:1px solid var(--rule);vertical-align:top}
.kv td:first-child{font:500 12px var(--fm);text-transform:uppercase;letter-spacing:.05em;color:var(--ink3);width:42%;padding-right:16px;padding-top:17px}
.kv td b{font:700 22px/1.1 var(--fd)}
.kv tr:first-child td{border-top:1px solid var(--ink)}
.callout{position:relative;border:1px solid var(--ink)}
.callout img{width:100%;aspect-ratio:1;object-fit:cover}
.pin{position:absolute;width:30px;height:30px;border-radius:50%;background:var(--acc);border:2px solid var(--ink);font:700 12px/26px var(--fm);text-align:center;color:var(--ink);transform:translate(-50%,-50%)}
.pin::after{content:"";position:absolute;width:44px;height:44px;border-radius:50%;border:1px solid var(--acc);left:-9px;top:-9px;animation:ping 2.4s infinite}
@keyframes ping{0%{transform:scale(.7);opacity:1}100%{transform:scale(1.5);opacity:0}}
.legend{display:grid;grid-template-columns:1fr 1fr;gap:6px 20px;margin-top:14px;font-size:13px;color:var(--ink2)}
.legend b{font-family:var(--fm);color:var(--ink);margin-right:8px}
.callout .cap{position:absolute;left:0;bottom:0;background:var(--ink);color:var(--paper);font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;padding:8px 12px}

/* direction sheets */
.dsheet{display:grid;grid-template-columns:110px 1fr 1fr;gap:0;border:1px solid var(--ink);background:var(--sheet);margin-bottom:22px;position:relative}
.dsheet .ix{border-right:1px solid var(--ink);display:flex;flex-direction:column;justify-content:space-between;padding:20px 16px;background:var(--c)}
.dsheet .ix b{font:800 46px/1 var(--fd)}
.dsheet .ix span{font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;writing-mode:vertical-rl;transform:rotate(180deg)}
.dsheet .tx{padding:34px 36px;display:flex;flex-direction:column;gap:20px;border-right:1px solid var(--ink)}
.dsheet h3{hyphens:auto;overflow-wrap:break-word;font-size:clamp(28px,3vw,44px);letter-spacing:-.02em}
.dsheet p{color:var(--ink2)}
.lead-list{list-style:none;padding:0;margin:0;font:400 14px/1 var(--fm)}
.lead-list li{display:flex;align-items:baseline;gap:10px;padding:9px 0}
.lead-list li::after{content:"";order:1;flex:1;border-bottom:1px dotted var(--ink3)}
.lead-list li span{order:2;color:var(--ink3);font-size:12px}
.dsheet .ph{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:1px;background:var(--ink);min-height:420px}
.dsheet .ph img{width:100%;height:100%;object-fit:cover;background:#fff}
.dsheet .ph img:first-child{grid-row:span 2}
.dsheet .ph img.ml{object-fit:contain;mix-blend-mode:multiply;background:var(--sheet)}
.dsheet .row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:auto}
.dsheet .row .mono{color:var(--ink3)}

/* route (process) */
.route{display:grid;grid-template-columns:repeat(5,1fr);position:relative;counter-reset:r}
.route::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:repeating-linear-gradient(90deg,var(--ink) 0 10px,transparent 10px 16px)}
.route li{list-style:none;position:relative;padding-right:24px;counter-increment:r}
.route li::before{content:counter(r,decimal-leading-zero);position:relative;display:grid;place-items:center;width:56px;height:56px;background:var(--sheet);border:2px solid var(--ink);font:700 16px var(--fm);margin-bottom:22px}
.route li:hover::before{background:var(--acc)}
.route b{display:block;font:700 20px/1.1 var(--fd);margin-bottom:10px}
.route span{font-size:14px;color:var(--ink2)}
.route{padding:0;margin:0}

/* conditions */
.cond{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--ink)}
.cond>div{padding:30px 28px;border-right:1px solid var(--ink)}
.cond>div:last-child{border-right:0}
.cond h3{font-size:24px;margin:14px 0 18px}
.cond ul{margin:0;padding:0;list-style:none;display:grid;gap:12px;font-size:14.5px;color:var(--ink2)}
.cond li{padding-left:18px;position:relative}
.cond li::before{content:"—";position:absolute;left:0;color:var(--ink)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.tags span{font:500 11px var(--fm);text-transform:uppercase;border:1px solid var(--ink);padding:6px 9px;letter-spacing:.04em}
.fine{font:400 11.5px/1.5 var(--fm);color:var(--ink3);margin-top:18px}

/* form blank + contacts title block */
.blank{display:grid;grid-template-columns:1.1fr .9fr;border:2px solid var(--ink);background:var(--sheet)}
.blank form{padding:40px;display:grid;gap:4px;border-right:2px solid var(--ink);align-content:start}
.blank h2{font-size:clamp(32px,4vw,56px);margin-bottom:10px;letter-spacing:-.02em}
.blank .sub{color:var(--ink2);margin-bottom:26px}
.fld{display:grid;grid-template-columns:150px 1fr;align-items:end;gap:14px;border-bottom:1px solid var(--ink);padding:14px 0 8px}
.fld label{font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;color:var(--ink3)}
.fld input,.fld select,.fld textarea{border:0;background:transparent;font:500 17px var(--fb);color:var(--ink);padding:4px 0;width:100%;outline:0;min-width:0}
.fld textarea{resize:vertical;min-height:28px}
.fld:focus-within{border-bottom-color:var(--acc);box-shadow:0 2px 0 var(--acc)}
.drop{margin-top:20px;border:1.5px dashed var(--ink);padding:22px;display:flex;gap:16px;align-items:center;cursor:pointer;transition:background .2s}
.drop:hover,.drop.on{background:color-mix(in srgb,var(--acc) 22%,transparent)}
.drop input{display:none}
.drop b{font:700 15px var(--fd)}
.drop span{display:block;font:400 12px var(--fm);color:var(--ink3);margin-top:4px}
.drop i{font-style:normal;font:700 22px var(--fm);width:46px;height:46px;border:1.5px solid var(--ink);display:grid;place-items:center;flex:none}
.blank .send{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:24px}
.blank .send small{font:400 11px var(--fm);color:var(--ink3);max-width:30ch}
.ok{font:500 14px var(--fm);border:1.5px solid var(--ink);padding:18px;background:var(--acc)}
.tb{display:grid;align-content:start}
.tb>div{display:grid;grid-template-columns:120px 1fr;border-bottom:1px solid var(--ink);min-width:0}
.tb>div>span{font:500 10.5px var(--fm);text-transform:uppercase;letter-spacing:.05em;color:var(--ink3);padding:16px 14px;border-right:1px solid var(--ink)}
.tb>div>div{padding:14px 18px;font-size:15px;min-width:0}
.tb a{text-decoration:none}
.tb a:hover{color:var(--acc-ink)}
.tb .ph b{font:700 24px/1.2 var(--fd);display:block}
.tb .dep{display:grid;grid-template-columns:40px 1fr;gap:4px 10px;font-size:13.5px}
.tb .dep em{font:600 12px var(--fm);font-style:normal;color:var(--acc-ink)}
.tb .dep a{grid-column:2;color:var(--ink3);font:400 12px var(--fm);margin-bottom:6px;overflow-wrap:anywhere}
.tb .logo-row{padding:22px 18px;display:flex;align-items:center;gap:14px;border-bottom:0}
.tb .logo-row svg{width:70px}

/* footer */
.foot{border-top:2px solid var(--ink);padding:40px 0 calc(40px + env(safe-area-inset-bottom,0px));overflow:hidden}
.foot .giant{font:800 clamp(64px,17vw,270px)/.82 var(--fd);letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1.5px var(--ink);white-space:nowrap;margin:10px 0 30px;user-select:none}
.foot .g{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;font-size:14px}
.foot h4{font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;color:var(--ink3);margin:0 0 12px}
.foot a{display:block;text-decoration:none;margin-bottom:6px}
.foot a:hover{color:var(--acc-ink)}

/* subpage hero */
.shero{padding:50px 0 80px}
.shero .g{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.shero .crumbs{font:500 12px var(--fm);text-transform:uppercase;letter-spacing:.05em;color:var(--ink3);margin-bottom:28px;display:flex;gap:10px;flex-wrap:wrap}
.shero .crumbs a{text-decoration:none;border-bottom:1px solid var(--ink3)}
.shero h1{font-size:clamp(44px,6.2vw,96px);letter-spacing:-.035em;line-height:1.08;margin-bottom:28px}
.shero h1 em{font-style:normal;background:linear-gradient(var(--acc),var(--acc)) 0 58%/100% .9em no-repeat;color:var(--ink);padding:0 .12em;box-decoration-break:clone;-webkit-box-decoration-break:clone}
body[data-page="vols"] .shero h1 em{color:#fff}
.shero .lead{font-size:18px;color:var(--ink2);max-width:52ch;margin-bottom:34px}
.shero .cta{display:flex;gap:12px;flex-wrap:wrap}
.shero .facts{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:0;margin-top:44px;border:1px solid var(--ink);width:max-content;max-width:100%}
.shero .facts div{padding:14px 20px;border-right:1px solid var(--ink)}
.shero .facts div:last-child{border-right:0}
.shero .facts b{display:block;font:700 26px/1 var(--fd)}
.shero .facts span{font:500 10.5px var(--fm);text-transform:uppercase;letter-spacing:.05em;color:var(--ink3)}
.fig{position:relative;margin:0}
.fig img{width:100%;mix-blend-mode:multiply}
.fig .co{position:absolute;display:flex;align-items:center;gap:0;font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
.fig .co::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--acc);border:1.5px solid var(--ink);flex:none}
.fig .co i{display:block;height:1px;background:var(--ink);width:var(--len,60px)}
.fig .co span{background:var(--sheet);border:1px solid var(--ink);padding:5px 8px}
.fig .co.l{flex-direction:row-reverse}
.fig figcaption{font:500 11px var(--fm);text-transform:uppercase;color:var(--ink3);letter-spacing:.05em;border-top:1px solid var(--ink);padding-top:10px;display:flex;justify-content:space-between}

/* spec table with hover preview */
.stbl{width:100%;border-collapse:collapse}
.stbl th{font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.06em;color:var(--ink3);text-align:left;padding:0 14px 12px 0;border-bottom:2px solid var(--ink)}
.stbl td{padding:22px 14px 22px 0;border-bottom:1px solid var(--rule);vertical-align:middle}
.stbl tr.r{cursor:pointer;transition:background .2s}
.stbl tr.r:hover{background:color-mix(in srgb,var(--acc) 14%,transparent)}
.stbl td.pos{font:600 13px var(--fm);width:60px;color:var(--acc-ink)}
.stbl td.nm{font:700 clamp(19px,2vw,26px)/1.1 var(--fd);width:34%}
.stbl td.ds{color:var(--ink2);font-size:14.5px}
.stbl td.th img{width:84px;height:84px;object-fit:cover;border:1px solid var(--ink);background:#fff}
.stbl td.go{text-align:right;font:500 12px var(--fm);white-space:nowrap}
.peek{position:fixed;z-index:70;width:260px;aspect-ratio:3/4;pointer-events:none;border:1.5px solid var(--ink);background:#fff;opacity:0;transform:scale(.9) rotate(-2deg);transition:opacity .2s,transform .2s;box-shadow:10px 10px 0 var(--acc)}
.peek.on{opacity:1;transform:scale(1) rotate(-2deg)}
.peek img{width:100%;height:100%;object-fit:cover}

/* signal path (vols) */
.signal{position:relative;border:1px solid var(--ink);background:var(--ink);color:var(--paper);padding:50px 40px;overflow:hidden}
.signal h3{font-size:clamp(26px,3vw,40px);margin-bottom:10px}
.signal p{color:#b7bec2;max-width:60ch}
.signal .chain{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:46px;position:relative}
.signal .fiber{position:absolute;left:0;right:0;top:44px;height:2px;background:rgba(255,255,255,.18);overflow:hidden}
.signal .fiber::after{content:"";position:absolute;top:0;left:-30%;width:30%;height:100%;background:linear-gradient(90deg,transparent,var(--red),#fff);animation:pulse 2.8s linear infinite;box-shadow:0 0 12px var(--red)}
@keyframes pulse{to{left:100%}}
.signal .node{position:relative;text-align:center;display:grid;justify-items:center;gap:12px}
.signal .node .ic{width:88px;height:88px;border:1.5px solid rgba(255,255,255,.6);background:var(--ink);display:grid;place-items:center;overflow:hidden}
.signal .node .ic img{width:100%;height:100%;object-fit:cover}
.signal .node .ic.dot{font:700 12px var(--fm);color:#b7bec2}
.signal .node b{font:700 16px/1.15 var(--fd)}
.signal .node span{font:400 11px var(--fm);color:#9aa3a8;text-transform:uppercase;letter-spacing:.05em}
.signal .node.ours .ic{border-color:var(--red);box-shadow:0 0 0 4px rgba(229,32,42,.25)}

/* gallery strip */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--ink);background:var(--ink)}
.strip figure{margin:0;background:var(--sheet);border-right:1px solid var(--ink);display:flex;flex-direction:column}
.strip figure:last-child{border-right:0}
.strip img{width:100%;aspect-ratio:3/4;object-fit:contain;mix-blend-mode:multiply;padding:10px}
.strip img.cv{object-fit:cover;padding:0;mix-blend-mode:normal}
.strip figcaption{font:500 11px var(--fm);text-transform:uppercase;letter-spacing:.05em;padding:12px 14px;border-top:1px solid var(--ink);display:flex;justify-content:space-between;gap:8px}

/* pile calculator */
.calc{display:grid;grid-template-columns:.85fr 1.15fr;border:2px solid var(--ink);background:var(--sheet)}
.calc .in{padding:34px;border-right:2px solid var(--ink);display:grid;gap:22px;align-content:start}
.calc .in h3{font-size:30px}
.rng{display:grid;gap:8px}
.rng label{display:flex;justify-content:space-between;font:500 12px var(--fm);text-transform:uppercase;letter-spacing:.05em;color:var(--ink2)}
.rng label output{font:700 18px var(--fd);color:var(--ink);text-transform:none}
.rng input[type=range]{width:100%;accent-color:var(--ink);height:28px}
.seg{display:flex;border:1px solid var(--ink)}
.seg button{flex:1;padding:11px 6px;background:transparent;border:0;border-right:1px solid var(--ink);font:600 13px var(--fm);cursor:pointer;color:var(--ink)}
.seg button:last-child{border-right:0}
.seg button.on{background:var(--ink);color:var(--paper)}
.calc .out{padding:28px;display:grid;grid-template-rows:auto 1fr auto;gap:18px;min-width:0}
.calc .res{display:flex;gap:30px;align-items:end;flex-wrap:wrap}
.calc .res b{font:800 clamp(64px,8vw,110px)/.85 var(--fd);letter-spacing:-.04em}
.calc .res span{font:500 12px var(--fm);text-transform:uppercase;letter-spacing:.05em;color:var(--ink2);display:block;max-width:22ch}
.plan{width:100%;height:auto;max-height:340px;background:var(--paper)}
.calc .fine{margin-top:0}

/* operations route builder (metall) */
.ops{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--ink);border-left:1px solid var(--ink)}
.op{position:relative;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);background:var(--sheet);cursor:pointer;display:flex;flex-direction:column;text-align:left;padding:0;font:inherit;color:inherit;transition:background .2s}
.op .im{aspect-ratio:1;overflow:hidden;border-bottom:1px solid var(--ink);background:var(--paper2)}
.op .im img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:filter .4s,transform .5s}
.op .im.none{display:grid;place-items:center;font:700 34px var(--fd);color:var(--ink3)}
.op:hover .im img{filter:none;transform:scale(1.05)}
.op .t{padding:14px 14px 16px;display:grid;gap:6px}
.op code{font:600 12px var(--fm);color:var(--acc-ink)}
.op b{font:700 17px/1.1 var(--fd)}
.op .chk{position:absolute;z-index:2;top:10px;right:10px;width:28px;height:28px;border:1.5px solid var(--ink);background:var(--sheet);display:grid;place-items:center;font:700 14px var(--fm)}
.op[aria-pressed="true"]{background:color-mix(in srgb,var(--acc) 20%,var(--sheet))}
.op[aria-pressed="true"] .chk{background:var(--acc)}
.op[aria-pressed="true"] .im img{filter:none}
.mroute{margin-top:26px;border:2px solid var(--ink);background:var(--sheet);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;padding:16px 20px}
.mroute .mono{color:var(--ink3)}
.mroute ol{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;font:600 13px var(--fm)}
.mroute ol li{border:1px solid var(--ink);padding:6px 9px;background:var(--paper)}
.mroute ol li+li::before{content:"→ ";color:var(--ink3)}
.mroute ol:empty::after{content:"Отметьте операции выше";font-weight:400;color:var(--ink3)}

/* big dark band */
.dark .route::before{background:repeating-linear-gradient(90deg,#e9ecec 0 10px,transparent 10px 16px)}
.dark .route li::before{background:var(--ink);border-color:#e9ecec;color:#e9ecec}
.dark .route li:hover::before{background:var(--acc);color:var(--ink)}
.dark{background:var(--ink);color:var(--paper)}
.dark .sh{border-top-color:var(--paper)}
.dark .sh .no{background:var(--acc);color:var(--ink)}
.dark .sh p{color:#b7bec2}

@media (max-width:1180px){
  .frame,.zones-x,.zones-y{display:none}
}
@media (max-width:1024px){
  .nav,.top .tel{display:none}
  .burger{display:block}
  .top.open .nav{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:var(--sheet);border-bottom:1px solid var(--ink);padding:12px max(20px,env(safe-area-inset-left,0px)) 20px}
  .hero .head,.pass,.shero .g,.blank,.calc{grid-template-columns:1fr}
  .blank form,.calc .in{border-right:0;border-bottom:2px solid var(--ink)}
  .tri{flex-direction:column;height:auto}
  .tri a{min-height:220px;flex:none}
  .tri a:hover{flex:none}
  .tri .t p{max-height:none;opacity:.9}
  .dsheet{grid-template-columns:70px 1fr}
  .dsheet .ix b{font-size:30px}
  .dsheet .tx{border-right:0}
  .dsheet .ph{grid-column:1/-1;min-height:280px;border-top:1px solid var(--ink)}
  .route{grid-template-columns:1fr;gap:26px}
  .route::before{left:27px;right:auto;top:0;bottom:0;width:2px;height:auto;background:repeating-linear-gradient(0deg,var(--ink) 0 10px,transparent 10px 16px)}
  .route li{display:grid;grid-template-columns:56px 1fr;column-gap:20px}
  .route li::before{margin:0;grid-row:span 2}
  .cond{grid-template-columns:1fr}
  .cond>div{border-right:0;border-bottom:1px solid var(--ink)}
  .cond>div:last-child{border-bottom:0}
  .ops{grid-template-columns:repeat(3,1fr)}
  .signal .chain{grid-template-columns:1fr;gap:20px}
  .signal .fiber{left:44px;right:auto;top:0;bottom:0;width:2px;height:auto}
  .signal .fiber::after{left:0;width:100%;height:30%;top:-30%;background:linear-gradient(180deg,transparent,var(--red),#fff);animation-name:pulsev}
  .signal .node{grid-template-columns:88px 1fr;text-align:left;justify-items:start;align-items:center;column-gap:18px}
  .signal .node .ic{grid-row:span 2}
  .strip{grid-template-columns:1fr 1fr}
  .strip figure:nth-child(2){border-right:0}
  .strip figure:nth-child(-n+2){border-bottom:1px solid var(--ink)}
  .foot .g{grid-template-columns:1fr 1fr}
  .sh{grid-template-columns:auto 1fr}
  .sh p{grid-column:1/-1}
}
@keyframes pulsev{to{top:100%}}
@media (max-width:640px){
  .sec{padding:72px 0}
  .fld{grid-template-columns:1fr;gap:2px}
  .fig .co{display:none}
  .dsheet h3{hyphens:auto;overflow-wrap:break-word;font-size:24px}
  .dsheet .tx{min-width:0}
  .shero h1{line-height:1.12;font-size:clamp(34px,10.5vw,58px)}
  .lead-list li{font-size:12.5px}
  .blank form,.calc .in,.calc .out{padding:24px 18px}
  .tb>div{grid-template-columns:1fr}
  .tb>div>span{border-right:0;padding:12px 14px 0}
  .ops{grid-template-columns:1fr 1fr}
  .mroute{grid-template-columns:1fr}
  .stbl td.ds,.stbl th.ds{display:none}
  .stbl td.th img{width:60px;height:60px}
  .shero .facts{grid-template-columns:1fr 1fr 1fr;width:100%}
  .shero .facts div{padding:12px 10px}
  .shero .facts b{font-size:20px}
  .fig .co{font-size:9.5px}
  .fig .co i{width:calc(var(--len,60px)*.5)}
  .kv td:first-child{width:46%}
  .legend{grid-template-columns:1fr}
  .foot .g{grid-template-columns:1fr}
  .dsheet .tx{padding:24px 20px}
  .dsheet .ph{min-height:220px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ===== WordPress-тема: дополнения ===== */
.btns{display:flex;gap:10px;flex-wrap:wrap}
.btn.acc{background:var(--acc);border-color:var(--acc);color:var(--ink)}
body[data-page="vols"] .btn.acc{color:#fff}
.btn.out.light{color:var(--paper);border-color:var(--paper)}
.btn.out.light:hover{background:var(--paper);color:var(--ink)}
.btn[disabled]{opacity:.5;pointer-events:none}
.tscroll{overflow-x:auto}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.form-msg{font:500 13px/1.5 var(--fm);margin-top:14px;min-height:1px}
.form-msg.ok{border:1.5px solid var(--ink);padding:14px 16px;background:var(--acc);color:var(--ink)}
body[data-page="vols"] .form-msg.ok{color:#fff}
.form-msg.err{border:1.5px solid var(--red);padding:14px 16px;color:var(--red);background:#fff}
.calc-foot{display:flex;gap:14px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.calc .rd{font-size:13px;color:var(--ink);max-width:none}
.fig-cut img{mix-blend-mode:multiply}
.fig-photo .framed{border:1px solid var(--ink)}
.fig-photo .framed img{mix-blend-mode:normal;aspect-ratio:1;object-fit:cover;width:100%}
.fig-section{max-width:420px;margin:0 auto;width:100%}
.fig-section .sect{position:relative;overflow:hidden}
.fig-section .sect img{transform:scaleY(-1);mix-blend-mode:multiply}
.fig-section .ground{position:absolute;left:0;right:0;top:38%;bottom:0;border-top:2px solid var(--ink);background:repeating-linear-gradient(-45deg,rgba(16,19,22,.10) 0 1.5px,transparent 1.5px 11px)}
.fig-section .gl{position:absolute;left:0;top:calc(38% - 22px);font-size:10.5px;color:var(--ink2)}
.stbl td.go b{font:700 15px var(--fd)}
.stbl-sizes td.nm,.stbl-sizes td.pos{width:auto}
.hero .aside .btns{margin-top:2px}
.pk-prose{max-width:760px;font-size:17px}
.pk-prose > * + *{margin-top:1em}
.pk-prose h2,.pk-prose h3{font-family:var(--fd);margin-top:1.6em}
.pk-prose a{color:var(--acc-ink)}
.pk-prose img{height:auto}
.pk-content > :not(section):not(.peek):not(script):not(style){max-width:var(--w);margin-inline:auto;padding-inline:max(20px,env(safe-area-inset-left,0px))}
.admin-bar .top{top:32px}
@media (max-width:782px){.admin-bar .top{top:0}}
.foot .menu-item{list-style:none}
@media (max-width:640px){.fig .co{display:none}}

.sh h1{font-size:clamp(32px,4.4vw,64px);letter-spacing:-.02em;max-width:18ch}

/* ===== Каталог (перенос paskom.ru) ===== */
/* текстовая колонка в шапках-сетках прижата к верху, как в макете (крошки на одном уровне всегда) */
.shero .g > div:first-child{align-self:start}
.shero-cat .facts{margin-top:22px}
/* описание на всю ширину контента (в шапках каталога нет фото справа) */
.shero .lead.lead-wide{max-width:none}
.shero-item .item-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px;font-size:12px;color:var(--ink2)}
.shero-item .item-meta b{color:var(--ink);margin-left:6px}
.shero-item h1{max-width:22ch}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.price-big{display:flex;flex-direction:column;gap:4px;margin-top:20px}
.price-big span{font-size:11px;color:var(--ink2)}
.price-big b{font:800 clamp(30px,3.4vw,44px)/1 var(--fd);letter-spacing:-.02em}
.pgal{background:#fff;padding:10px}
.pgal .pg-main img{aspect-ratio:1;object-fit:cover;width:100%}
.pg-thumbs{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.pg-thumbs button{border:1.5px solid var(--ink);background:#fff;padding:0;cursor:pointer;width:72px;height:72px;overflow:hidden}
.pg-thumbs button:hover,.pg-thumbs button.on{outline:2px solid var(--acc)}
.pg-thumbs img{width:100%;height:100%;object-fit:cover}
.ph-empty{aspect-ratio:1;display:grid;place-items:center;color:var(--ink2);font-size:13px;letter-spacing:.08em;text-transform:uppercase;border:1.5px dashed var(--ink3)}
.kv-item{max-width:720px}
.cat-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}
.cat-count{font:500 12.5px var(--fm);color:var(--ink2);letter-spacing:.08em;padding-bottom:12px;white-space:nowrap}
.cat-hub{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:14px}
.hub-card{border:1.5px solid var(--ink);background:#fff;padding:20px 22px;display:flex;flex-direction:column;gap:14px;text-decoration:none;color:var(--ink);min-width:0}
.hub-card:hover{outline:2.5px solid var(--acc)}
.hub-top{display:flex;justify-content:space-between;align-items:baseline;gap:14px}
.hub-top b{font:800 21px/1.15 var(--fd);text-transform:uppercase;letter-spacing:.01em;overflow-wrap:anywhere}
.hub-top .mono{font:500 12px var(--fm);color:var(--ink2);white-space:nowrap}
.hub-kids{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:4px 18px;font-size:13.5px}
.hub-kids li{display:flex;justify-content:space-between;gap:8px;border-bottom:1px solid var(--paper2);padding:4px 0;min-width:0}
.hub-kids li .mono{font:500 11px var(--fm);color:var(--ink2)}
.hub-go{margin-top:auto;font:600 14px var(--fd);text-transform:uppercase;color:var(--acc-ink)}
.hub-card:hover .hub-go{text-decoration:underline}
.subchips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}
.subchips a{border:1.5px solid var(--ink);background:#fff;padding:8px 14px;font:500 13px var(--fm);color:var(--ink);text-decoration:none;display:inline-flex;gap:8px;align-items:baseline}
.subchips a .mono{font-size:11px;color:var(--ink2)}
.subchips a:hover{background:var(--paper2);color:var(--acc-ink)}
.cat-nav{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:10px;margin:26px 0 44px}
.cat-grp{border:1.5px solid var(--ink);background:#fff}
.cat-grp summary{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 14px;cursor:pointer;font:700 14px/1.25 var(--fd);text-transform:uppercase;list-style:none}
.cat-grp summary::-webkit-details-marker{display:none}
.cat-grp summary .mono{font:500 11.5px var(--fm);color:var(--ink2)}
.cat-grp.on{border-width:3px}
.cat-grp ul{margin:0;padding:0 0 8px;list-style:none}
.cat-grp li a{display:flex;justify-content:space-between;gap:10px;padding:6px 14px;font-size:13.5px;color:var(--ink)}
.cat-grp li a:hover,.cat-grp li a.on{background:var(--paper2);color:var(--acc-ink);font-weight:600}
.cat-grp li a .mono{font:500 11px var(--fm);color:var(--ink2)}
.stbl td.nm a{color:inherit;text-decoration:none;border-bottom:1px solid var(--ink3)}
.stbl td.nm a:hover{color:var(--acc-ink);border-color:var(--acc)}
.pgn{margin-top:26px}
.pgn .nav-links{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.pgn .screen-reader-text{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.pgn .page-numbers{border:1.5px solid var(--ink);background:#fff;min-width:40px;height:40px;display:grid;place-items:center;padding:0 12px;color:var(--ink);text-decoration:none;font:500 14px var(--fm)}
.pgn .page-numbers.dots{border:none;min-width:20px;padding:0;background:none}
.pgn .page-numbers.current{background:var(--ink);color:#fff}
.pgn .page-numbers:hover:not(.current):not(.dots){background:var(--paper2)}
.sim-row,.svc-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.sim{min-width:0;border:1.5px solid var(--ink);background:#fff;padding:10px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink)}
.sim .im{aspect-ratio:1;overflow:hidden;display:grid;place-items:center;background:var(--paper);width:100%}
.sim .im img{width:100%;height:100%;object-fit:cover;max-width:100%}
.sim b{font:700 15px/1.3 var(--fd);text-transform:uppercase;letter-spacing:.01em;overflow-wrap:anywhere}
.sim .mono{font:500 12px var(--fm);color:var(--ink2)}
.sim:hover{outline:2px solid var(--acc)}
.svc-row.big .sim .im{aspect-ratio:4/3}
.prose{max-width:none;font-size:17px;line-height:1.65}
.prose>*+*{margin-top:1.4em}
.prose h2,.prose h3{font-family:var(--fd);text-transform:uppercase;letter-spacing:.01em;margin-top:1.6em;line-height:1.15}
.prose h2{font-size:26px}.prose h3{font-size:20px}
.prose a{color:var(--acc-ink);border-bottom:1px solid var(--acc)}
.prose img{height:auto;max-width:100%}
.prose ul,.prose ol{padding-left:24px}
.prose li+li{margin-top:.4em}
.prose table{border-collapse:collapse;width:100%}
.prose table td,.prose table th{border:1px solid var(--ink3);padding:8px 12px;font-size:15px;overflow-wrap:anywhere}
.prose blockquote{border-left:3px solid var(--acc);padding:.2em 0 .2em 1em;color:var(--ink2)}
.blog-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin-top:40px}
.blog-card{border:1.5px solid var(--ink);background:#fff;padding:18px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink)}
.blog-card .mono{font:500 12px var(--fm);color:var(--ink2)}
.blog-card b{font:700 18px/1.25 var(--fd)}
.blog-card p{font-size:14px;color:var(--ink2);margin:0}
.blog-card:hover{outline:2px solid var(--acc)}
/* статьи и новости: компактная шапка, читабельный заголовок */
.shero-blog{padding:44px 0 20px}
.sec-up{padding-top:36px!important}
.shero-blog h1{font-size:clamp(26px,3vw,40px);line-height:1.16;max-width:34ch}
.shero-blog .blog-date{font-size:12.5px;color:var(--ink2);margin-top:10px;letter-spacing:.06em}
.prose figure{margin:1.9em auto;max-width:30%}
.prose figure img{width:100%;height:auto;max-width:100%;border:1px solid var(--ink3)}
.prose figure figcaption,.prose figure + p.fine{font:500 12.5px var(--fm);color:var(--ink2);margin-top:8px}
.prose > p:first-child{font-size:18.5px;color:var(--ink2)}
.prose ul,.prose ol{padding-left:22px;margin:1.2em 0}
.prose li{margin:.55em 0}
.prose li::marker{color:var(--acc-ink);font-weight:700}
.prose p > strong:first-child{font-weight:700}
@media (max-width:640px){
  .cat-hub{grid-template-columns:1fr}
  .prose figure{max-width:64%}
  .prose > p:first-child{font-size:17px}
  .hub-kids{grid-template-columns:1fr}
  .subchips a{padding:7px 11px;font-size:12.5px}
  .pgn .nav-links{gap:5px}
  .pgn .page-numbers{min-width:38px;height:38px;padding:0 10px;font-size:13px}
  .sim-row,.svc-row{grid-template-columns:repeat(2,1fr)}
  .shero-item .cta{flex-wrap:wrap}
  .blog-row{grid-template-columns:1fr}
}