:root{
  --paper:#F5F4F0; --tint:#ECEAE4; --white:#FBFAF8;
  --ink:#141414; --ink-2:#55544F; --ink-3:#8B8983; --line:#DCD9D1;
  --accent:#E4602F; --accent-2:#C94F22;
  --dark:#141414; --dark-2:#1D1D1C; --dark-line:#303030; --dark-ink-2:#A3A19B;
  --max:1280px; --gutter:40px; --sec:128px; --r:12px;
  --sans:Geist,"Helvetica Neue",Arial,sans-serif; --monof:"Geist Mono",ui-monospace,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:var(--sans);font-size:17px;line-height:1.55;background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.mono{font-family:var(--monof);font-size:12px;letter-spacing:.02em}
.muted{color:var(--ink-2)} .small{font-size:14px}
h1,h2,h3{font-weight:500;letter-spacing:-.03em}
h1{font-size:clamp(44px,6.2vw,88px);line-height:.98;letter-spacing:-.045em}
h2{font-size:clamp(32px,3.6vw,52px);line-height:1.04}
h3{font-size:21px;line-height:1.25;letter-spacing:-.015em}

/* header */
.header{position:sticky;top:0;z-index:50;background:rgba(245,244,240,.88);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.header__inner{display:flex;align-items:center;height:64px;gap:40px}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:18px;letter-spacing:-.02em}
.nav{display:flex;gap:28px;font-size:15px;margin-right:auto}
.nav a{color:var(--ink-2);transition:color .15s}
.nav a:hover{color:var(--ink)}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.lang{display:flex;font-family:var(--monof);font-size:12px}
.lang button{border:0;background:none;padding:6px 7px;cursor:pointer;color:var(--ink-3)}
.lang button.is-active{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.burger{display:none;border:0;background:none;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:6px}
.burger span{width:20px;height:1.5px;background:var(--ink);transition:transform .2s}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 22px;border-radius:999px;background:var(--ink);color:var(--paper);font-size:15px;font-weight:500;border:0;cursor:pointer;transition:background .15s}
.btn:hover{background:var(--accent)}
.btn--sm{height:36px;padding:0 16px;font-size:14px}
.btn--accent{background:var(--accent);color:#fff}
.btn--accent:hover{background:#fff;color:var(--ink)}
.link-arrow{font-size:15px;font-weight:500;border-bottom:1px solid var(--ink);padding-bottom:2px}
.link-arrow::after{content:" →"}
.link-arrow:hover{color:var(--accent);border-color:var(--accent)}

/* hero */
.hero{padding:56px 0 0}
.meta{display:flex;gap:24px;color:var(--ink-3);margin-bottom:40px;text-transform:uppercase}
.meta span+span::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--accent);margin-right:24px;vertical-align:middle;transform:translateY(-1px)}
.hero__grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:end}
.hero h1{grid-column:1/9}
.hero__side{grid-column:9/13;padding-bottom:8px}
.lead{font-size:18px;color:var(--ink-2);margin-bottom:28px}
.hero__cta{display:flex;align-items:center;gap:28px;flex-wrap:wrap}

/* figure */
.fig{margin-top:72px;background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:32px 32px 20px}
.fig__scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.arch{display:block;width:100%;min-width:780px;height:auto}
.arch .cols text{fill:var(--ink-3);font-size:13px;letter-spacing:.08em}
.arch .wires path{fill:none;stroke:var(--ink-3);stroke-width:1.2;stroke-dasharray:4 5;animation:flow 1.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-18}}
.arch .node rect{fill:var(--paper);stroke:var(--line);stroke-width:1.2}
.arch .node .t{font-size:19px;font-weight:500;fill:var(--ink);letter-spacing:-.01em}
.arch .node .s{font-size:13px;fill:var(--ink-2)}
.arch .node--accent rect{fill:var(--ink);stroke:var(--ink)}
.arch .node--accent .t{fill:#fff}.arch .node--accent .s{fill:#B9B7B1}
.arch .node--accent text:nth-of-type(2){fill:var(--accent)}
.arch .node--muted rect{fill:none;stroke-dasharray:3 4;stroke:var(--ink-3)}
.arch .band rect{fill:rgba(228,96,47,.08);stroke:var(--accent);stroke-width:1.2}
.arch .band text{fill:var(--accent-2);font-size:13px;letter-spacing:.1em}
.fig figcaption{display:flex;gap:20px;border-top:1px solid var(--line);margin-top:24px;padding-top:16px;color:var(--ink-2)}
.fig figcaption span:first-child{color:var(--ink);white-space:nowrap}

/* sections */
.section{padding:var(--sec) 0}
.section--tint{background:var(--tint)}
.section--line{border-top:1px solid var(--line)}
.section--dark{background:var(--dark);color:#F2F1ED}
.shead{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:end;margin-bottom:64px}
.shead h2{grid-column:1/7}
.shead p{grid-column:8/13;color:var(--ink-2)}
.section--dark .shead p{color:var(--dark-ink-2)}

/* services rows */
.rows{border-top:1px solid var(--ink)}
.row{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;padding:28px 0;border-bottom:1px solid var(--line);align-items:baseline;transition:background .2s}
.row h3{grid-column:1/5;transition:color .15s}
.row p{grid-column:5/10;color:var(--ink-2);font-size:16px}
.row .chips{grid-column:10/13;justify-self:end}
.row:hover h3{color:var(--accent)}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.chips li{font-family:var(--monof);font-size:12px;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);white-space:nowrap}

/* matrix */
.matrix{width:100%;min-width:620px;border-collapse:collapse;font-size:16px}
.matrix th,.matrix td{border-bottom:1px solid var(--dark-line);padding:20px 12px;text-align:center}
.matrix thead th{font-family:var(--monof);font-size:12px;font-weight:400;color:var(--dark-ink-2);text-transform:uppercase;letter-spacing:.06em;padding-top:0}
.matrix tbody th{text-align:left;font-weight:500;font-size:20px;padding-left:0;width:24%}
.matrix tbody tr{transition:background .15s}
.matrix tbody tr:hover{background:var(--dark-2)}
.matrix td{width:15.2%}
.dot{display:inline-block;width:14px;height:14px;border-radius:50%;background:var(--accent);vertical-align:middle}
.dot--2{background:none;border:1.5px solid var(--dark-ink-2)}
.legend{display:flex;gap:28px;margin-top:24px;color:var(--dark-ink-2)}
.legend span{display:flex;align-items:center;gap:10px}
.legend b{font-weight:400}

/* gantt */
.gantt{min-width:720px}
.g-row{display:grid;grid-template-columns:260px 1fr;align-items:center;min-height:52px;border-bottom:1px solid var(--line)}
.g-row>span{font-size:15px;color:var(--ink);padding-right:16px}
.g-track{position:relative;display:grid;grid-template-columns:repeat(20,1fr);height:100%;align-items:center;min-height:52px;
  background-image:repeating-linear-gradient(to right,var(--line) 0 1px,transparent 1px calc(100%/20))}
.g-track i{grid-column:var(--s)/var(--e);grid-row:1;height:14px;border-radius:999px;background:var(--ink-3)}
.g-track i.is-main{background:var(--ink)}
.g-track i.is-qa{background:repeating-linear-gradient(-45deg,var(--accent) 0 3px,rgba(228,96,47,.25) 3px 7px)}
.g-track i.is-accent{background:var(--accent)}
.g-track i.is-ongoing{background:linear-gradient(to right,var(--ink-2),rgba(85,84,79,0));border-radius:999px 0 0 999px}
.g-scale{border-bottom:1px solid var(--ink);min-height:36px}
.g-scale .g-track{background:none;min-height:36px}
.g-scale b{grid-column:var(--s);grid-row:1;font-weight:400;color:var(--ink-3)}
.gantt__axis{color:var(--ink-3);margin-top:12px;text-align:right;text-transform:uppercase}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:64px}
.facts div{border-top:2px solid var(--accent);padding-top:18px}
.facts p{font-size:17px}

/* models */
.models{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink)}
.model{padding:32px 32px 8px 0;display:flex;flex-direction:column;gap:14px}
.model+.model{padding-left:32px;border-left:1px solid var(--line)}
.model p{color:var(--ink-2);font-size:16px}
.model__fit{margin-top:auto;padding-top:12px;color:var(--ink)!important;font-size:12px!important}

/* work */
.work{display:grid;grid-template-columns:repeat(12,1fr);grid-template-rows:auto auto;gap:24px}
.work figure{grid-column:span 5;display:flex;flex-direction:column}
.work .work__big{grid-column:1/8;grid-row:1/3}
.work__image{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r);background:var(--white)}
.work .work__big .work__image{flex:1;height:100%;min-height:420px}
.work figcaption{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-top:12px;font-size:15px}
.work figcaption b{font-weight:500}
.work figcaption span{color:var(--ink-3)}
.ph{aspect-ratio:4/3;border:1px dashed #C7C3B9;border-radius:var(--r);background:var(--white);display:flex;align-items:center;justify-content:center;padding:28px;text-align:center;font-family:var(--monof);font-size:12px;line-height:1.7;color:var(--ink-3)}
.ph span{max-width:380px}

/* company */
.company{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.company>div{grid-column:1/6}
.company>div h2{margin-bottom:20px}
.registry{grid-column:7/13;border-top:1px solid var(--ink)}
.registry div{display:grid;grid-template-columns:180px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.registry dt{color:var(--ink-3);text-transform:uppercase;padding-top:4px}
.registry dd{font-size:17px}
.registry a{border-bottom:1px solid var(--line)}
.registry a:hover{color:var(--accent);border-color:var(--accent)}

/* contact */
.contact{background:var(--dark);color:#F2F1ED;padding:var(--sec) 0}
.contact__grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.contact__grid>div{grid-column:1/6}
.contact p{color:var(--dark-ink-2);margin:20px 0 40px;max-width:420px}
.contact__mail{font-size:clamp(22px,2.2vw,30px);letter-spacing:-.02em;border-bottom:1px solid var(--dark-line);padding-bottom:4px}
.contact__mail:hover{color:var(--accent);border-color:var(--accent)}
.form{grid-column:7/13;display:grid;grid-template-columns:1fr 1fr;gap:28px 24px}
.form label{display:flex;flex-direction:column;gap:8px}
.form label span{color:var(--dark-ink-2);text-transform:uppercase}
.form .full{grid-column:1/-1}
.form input,.form select,.form textarea{background:transparent;border:0;border-bottom:1px solid var(--dark-line);padding:8px 0 10px;font-size:17px;border-radius:0;outline:none;transition:border-color .15s;resize:vertical}
.form select{appearance:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23A3A19B' stroke-width='1.5'/%3E%3C/svg%3E") right 4px center no-repeat}
.form select option{color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--accent)}
.form__foot{display:flex;align-items:center;gap:20px;margin-top:8px}
.form__foot small{color:var(--dark-ink-2)}

/* footer */
.footer{background:var(--dark);color:var(--dark-ink-2);font-size:14px;border-top:1px solid var(--dark-line)}
.footer__bottom{display:flex;gap:32px;padding-top:28px;padding-bottom:28px}
.footer__bottom>span{margin-right:auto}
.footer a:hover{color:#fff}

/* legal page */
.legal{max-width:760px;padding:72px var(--gutter) 96px;margin:0 auto}
.legal h1{font-size:clamp(36px,4.4vw,56px);margin:24px 0 8px}
.legal h2{font-size:22px;margin:44px 0 12px}
.legal p,.legal li{color:#3A3935;margin-bottom:12px}
.legal ul{padding-left:20px}
.legal a{border-bottom:1px solid var(--line)}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media (prefers-reduced-motion:reduce){.arch .wires path{animation:none}html{scroll-behavior:auto}}

/* responsive */
@media (max-width:1080px){
  :root{--gutter:32px;--sec:104px}
  .nav{display:none}
  .hero h1{grid-column:1/-1}
  .hero__side{grid-column:1/9}
  .burger{display:flex}
  .nav.is-open{display:flex;position:fixed;inset:64px 0 auto 0;flex-direction:column;gap:0;background:var(--paper);padding:8px var(--gutter) 24px;border-bottom:1px solid var(--line)}
  .nav.is-open a{padding:16px 0;font-size:20px;color:var(--ink);border-bottom:1px solid var(--line)}
  .burger.is-open span:first-child{transform:translateY(3.75px) rotate(45deg)}
  .burger.is-open span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
  .row h3{grid-column:1/5}.row p{grid-column:5/13}.row .chips{grid-column:5/13;justify-self:start}
}
@media (max-width:820px){
  :root{--gutter:20px;--sec:80px}
  .hero{padding-top:36px}
  .hero__side{grid-column:1/-1}
  .fig{margin-top:48px;padding:20px 16px 16px}
  .shead{margin-bottom:40px}
  .shead h2,.shead p{grid-column:1/-1}
  .row{padding:24px 0;gap:10px}
  .row h3,.row p,.row .chips{grid-column:1/-1}
  .facts,.models{grid-template-columns:1fr}
  .facts{gap:28px;margin-top:48px}
  .model,.model+.model{padding:28px 0;border-left:0}
  .model+.model{border-top:1px solid var(--line)}
  .work figure,.work .work__big{grid-column:1/-1;grid-row:auto}
  .work .work__big .work__image{height:auto;min-height:0}
  .company>div,.registry,.contact__grid>div,.form{grid-column:1/-1}
  .registry{margin-top:32px}
  .registry div{grid-template-columns:1fr;gap:4px}
  .form{margin-top:48px;grid-template-columns:1fr}
  .footer__bottom{flex-wrap:wrap;gap:12px 24px}
  .footer__bottom>span{width:100%}
  .g-row{grid-template-columns:190px 1fr}
  .header .btn--sm{display:none}
}

/* mobile architecture + compact infographics */
.btn{white-space:nowrap}
.arch-m{display:none}
@media (max-width:820px){
  .fig__scroll--arch{display:none}
  .arch-m{display:flex;flex-direction:column;gap:0}
  .am-layer{position:relative;padding-bottom:26px}
  .am-layer:not(:nth-last-child(2))::after{content:"";position:absolute;left:50%;bottom:4px;height:18px;border-left:1.2px dashed var(--ink-3)}
  .am-layer>span{display:block;color:var(--ink-3);letter-spacing:.08em;margin-bottom:8px}
  .am-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
  .am-nodes--2{grid-template-columns:1fr 1fr}
  .am-nodes b{display:flex;flex-direction:column;gap:2px;font-weight:500;font-size:14px;line-height:1.25;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:10px}
  .am-nodes b em{font-style:normal;font-size:11px;color:var(--ink-2)}
  .am-nodes b.is-dark{grid-column:1/-1;background:var(--ink);color:#fff;border-color:var(--ink);flex-direction:row;justify-content:space-between;align-items:baseline}
  .am-nodes b.is-dark em{color:var(--accent)}
  .am-nodes b.is-dashed{background:none;border-style:dashed;border-color:var(--ink-3)}
  .am-band{margin-top:4px;padding:10px 12px;border:1px solid var(--accent);background:rgba(228,96,47,.08);color:var(--accent-2);border-radius:8px;text-align:center;font-size:11px;line-height:1.6;letter-spacing:.06em}

  .matrix{min-width:0;font-size:14px;table-layout:fixed}
  .matrix th,.matrix td{padding:14px 2px}
  .matrix thead th{font-size:9.5px;letter-spacing:0;word-break:break-word;vertical-align:bottom}
  .matrix tbody th{font-size:16px;width:27%}
  .matrix td{width:auto}
  .dot{width:11px;height:11px}

  .gantt{min-width:0}
  .g-row{grid-template-columns:1fr;padding:10px 0 8px;min-height:0;gap:6px}
  .g-row>span{font-size:14px}
  .g-track,.g-scale .g-track{min-height:16px}
  .g-track{background:linear-gradient(var(--line),var(--line)) center/100% 1px no-repeat}
  .g-scale .g-track{background:none}
  .g-track i{height:10px}
  .g-scale{padding:0 0 6px}
  .g-scale>span{display:none}
}

/* footer company details */
.footer__req{display:grid;grid-template-columns:1.1fr .8fr 1.6fr 1.1fr;gap:24px;padding-top:48px;padding-bottom:40px}
.footer__req span{display:block;text-transform:uppercase;color:#7C7A75;margin-bottom:6px}
.footer__req p{color:#E8E7E3;font-size:15px;line-height:1.5}
.footer__req a:hover{color:var(--accent)}
.footer{border-top:1px solid var(--dark-line)}
.footer__bottom{position:relative}
.footer__bottom::before{content:"";position:absolute;top:0;left:var(--gutter);right:var(--gutter);height:1px;background:var(--dark-line)}
@media (max-width:820px){.footer__req{grid-template-columns:1fr 1fr;gap:24px 16px;padding-top:40px;padding-bottom:32px}.footer__req div:nth-child(3){grid-column:1/-1;order:3}.footer__req div:nth-child(4){order:4}}