/* АО «Технические решения». Концепция: две «двери» (инженерные системы в бордовом из логотипа, IT в светлом живом градиенте), дальше спокойная деловая вёрстка; одна сцена с характером: подсветка стены кремля */
:root{
  --bg:#FBFAFA; --fg:#1B1617; --muted:#6E6466; --hair:rgba(27,22,23,.12); --card:#FFFFFF;
  --wine:#750C0F; --wine-2:#8F1418; --wine-ink:#FFF5F3; --wine-soft:#F4E7E6;
  --night:#120E10; --warm:#FFD9A0;
  --it-a:#FFE3D3; --it-b:#E1E7FF; --it-c:#DDF3E6; --it-ink:#16181C;
  --f-display:"Geologica","Golos Text",system-ui,sans-serif;
  --f-body:"Golos Text",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --r:24px; --ease:cubic-bezier(.2,.8,.2,1);
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3{font-family:var(--f-display);font-weight:600;letter-spacing:-.02em;margin:0;text-wrap:balance}
p{margin:0}
:focus-visible{outline:2px solid var(--wine);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--fg);color:var(--bg);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
.wrap{max-width:1200px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.wine{color:var(--wine)}
.sel{user-select:all}

/* кнопки */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--fg);color:#fff;border:0;border-radius:999px;padding:15px 24px;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;transition:transform .25s var(--ease),background .25s}
.btn:hover{transform:translateY(-2px);background:#000}
.btn-ghost{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--hair)}
.btn-ghost:hover{background:var(--card)}
.btn-sm{padding:10px 18px;font-size:14px;background:var(--wine)}
.btn-sm:hover{background:var(--wine-2)}
.btn-wide{width:100%}

/* шапка */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--bg)}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(251,250,250,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--hair)}
.top-in{display:flex;align-items:center;gap:24px;padding-block:12px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-family:var(--f-display);font-weight:600;font-size:16px}
.brand svg{width:40px;height:24px;flex:none}
.brand svg path{fill:var(--wine)}
.nav{display:flex;gap:22px;margin-left:auto;font-size:15px}
.nav a{text-decoration:none;color:var(--muted);transition:color .2s}
.nav a:hover,.nav a.on{color:var(--fg)}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:0;background:transparent;position:relative;cursor:pointer}
.burger i{position:absolute;left:11px;right:11px;height:2px;background:var(--fg);transition:transform .3s}
.burger i:first-child{top:17px}.burger i:last-child{top:25px}
.burger[aria-expanded="true"] i:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] i:last-child{transform:translateY(-4px) rotate(-45deg)}
.mnav{display:grid;padding:8px max(20px,env(safe-area-inset-right,0px)) 18px max(20px,env(safe-area-inset-left,0px));border-top:1px solid var(--hair)}
.mnav a{padding:12px 0;text-decoration:none;font-size:18px;border-bottom:1px solid var(--hair)}

/* герой */
.hero{padding-block:clamp(48px,8vw,104px) clamp(32px,5vw,56px)}
.hero-title{font-size:clamp(46px,8.6vw,118px);line-height:.94;margin-top:18px}
.hero-title span{display:block}
.hero-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 48px;align-items:end;margin-top:34px}
.hero-lead{max-width:40ch;font-size:clamp(19px,2vw,22px);line-height:1.45}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap}
.stats{display:flex;gap:16px 44px;flex-wrap:wrap;margin:40px 0 0;padding-top:22px;border-top:1px solid var(--hair)}
.stats div{display:flex;flex-direction:column-reverse}
.stats dt{font-size:13px;color:var(--muted)}
.stats dd{margin:0;font-family:var(--f-display);font-size:32px;font-weight:500;font-variant-numeric:tabular-nums}

/* двери */
.doors{display:flex;gap:10px;padding-left:max(10px,env(safe-area-inset-left,0px));padding-right:max(10px,env(safe-area-inset-right,0px));min-height:min(700px,82vh)}
.door{position:relative;flex:1 1 0;min-width:0;border-radius:28px;overflow:hidden;contain:paint;display:flex;flex-direction:column;justify-content:space-between;padding:clamp(24px,4vw,48px);text-decoration:none;transition:flex-grow .7s var(--ease)}
@media (hover:hover) and (min-width:861px){
  .doors:hover .door{flex-grow:.8}
  .doors .door:hover,.doors .door:focus-visible{flex-grow:1.5}
}
.door .kind{font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;opacity:.75}
.door h2{font-size:clamp(38px,5.2vw,76px);line-height:.98;margin-top:14px}
.door ul{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:8px;max-width:36ch;font-size:16px}
.door li{display:flex;gap:10px}
.door li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;margin-top:.65em;background:currentColor;opacity:.6}
.door .go{display:inline-flex;align-items:center;gap:10px;margin-top:32px;font-weight:600;font-size:16px;padding:14px 22px;border-radius:999px}
.door .go svg{transition:transform .3s}
.door:hover .go svg{transform:translateX(4px)}
.door .foot{font-size:14px;opacity:.8;margin-top:20px}
.door > *:not(.blob):not(.wire){position:relative;z-index:1}
.d-eng{background:var(--wine);color:var(--wine-ink)}
.d-eng .go{background:var(--wine-ink);color:var(--wine)}
.d-eng .wire{position:absolute;right:-40px;bottom:-30px;width:min(520px,80%);opacity:.18;pointer-events:none}
.d-it{background:var(--it-b);color:var(--it-ink)}
.d-it .go{background:var(--it-ink);color:#fff}
.blob{position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none}
.b1{width:60%;aspect-ratio:1;background:var(--it-a);top:-12%;right:-10%}
.b2{width:55%;aspect-ratio:1;background:var(--it-c);bottom:-20%;left:-10%}

/* общие секции */
.block{padding-block:clamp(72px,10vw,128px)}
.sec-head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:14px 64px;align-items:end;margin-bottom:48px}
.sec-head .eyebrow{grid-column:1/-1}
.sec-head h2{font-size:clamp(30px,3.6vw,48px);line-height:1.08;max-width:20ch}
.sec-lead{color:var(--muted);max-width:52ch}

/* услуги */
.svc{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:24px 56px}
.svc-list{display:flex;flex-direction:column;border-top:1px solid var(--hair)}
.svc-list button{display:flex;justify-content:space-between;align-items:center;gap:12px;text-align:left;background:none;border:0;border-bottom:1px solid var(--hair);padding:16px 4px;font-size:18px;cursor:pointer;color:var(--muted);transition:color .2s,padding .3s var(--ease)}
.svc-list button::after{content:"→";opacity:0;transition:opacity .2s,transform .3s var(--ease);transform:translateX(-6px)}
.svc-list button:hover{color:var(--fg)}
.svc-list button[aria-selected="true"]{color:var(--fg);padding-left:14px;font-weight:500}
.svc-list button[aria-selected="true"]::after{opacity:1;transform:none;color:var(--wine)}
.svc-panel{background:var(--card);border:1px solid var(--hair);border-radius:var(--r);padding:clamp(24px,4vw,44px);min-height:420px;display:flex;flex-direction:column}
.svc-panel h3{font-size:clamp(26px,3vw,36px);line-height:1.1}
.svc-panel .lead{margin-top:14px;font-size:18px;max-width:52ch}
.svc-panel ul{list-style:none;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px}
.svc-panel li{padding-left:18px;position:relative;font-size:15.5px}
.svc-panel li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:2px;background:var(--wine)}
.svc-panel .ex{margin-top:26px;padding-top:18px;border-top:1px solid var(--hair);font-size:15px;color:var(--muted)}
.svc-panel .ex b{color:var(--fg);font-weight:500}
.svc-panel .btn{margin-top:auto;align-self:flex-start}
.svc-panel .ex + .btn,.svc-panel ul + .btn{margin-top:28px}

/* подсветка */
.lights{background:var(--night);color:#F6EEE8;padding-block:clamp(72px,10vw,120px);overflow:hidden}
.lights-in{display:grid;gap:40px}
.lights-text{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:14px 64px;align-items:end}
.lights-text .eyebrow{grid-column:1/-1;color:#C9B3AA}
.lights-text h2{font-size:clamp(30px,4vw,52px);line-height:1.05}
.lights-text p:last-child{color:#BFAEA8;max-width:50ch}
.kremlin{width:100%;height:auto;overflow:visible}
.kremlin .wall{fill:#2A2124;stroke:#3C3034;stroke-width:1}
.kremlin .beam{fill:url(#beam);mix-blend-mode:screen}
.kremlin .pool{fill:url(#pool)}
.kremlin .lamp{fill:var(--warm)}
.kremlin .lbl{fill:#BFAEA8;font:500 13px var(--f-body);letter-spacing:.06em}

/* объекты */
.gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:220px;gap:10px}
.ph{position:relative;margin:0;border-radius:20px;overflow:hidden;background:#ddd}
.ph-big{grid-column:span 2;grid-row:span 2}
.ph img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.ph:hover img{transform:scale(1.04)}
.ph figcaption{position:absolute;left:0;right:0;bottom:0;padding:40px 18px 16px;background:linear-gradient(transparent,rgba(10,6,8,.72));color:#fff;display:flex;flex-direction:column;gap:2px}
.ph figcaption b{font-weight:600;font-size:16px}
.ph figcaption span{font-size:13px;opacity:.85}
.nums{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:56px;border-top:1px solid var(--hair)}
.nums div{padding:26px 24px 0 0;display:flex;flex-direction:column;gap:6px}
.nums b{font-family:var(--f-display);font-size:clamp(44px,5vw,64px);line-height:1;font-weight:500;color:var(--wine);font-variant-numeric:tabular-nums}
.nums span{color:var(--muted);font-size:15px;max-width:24ch}
.obj-lists{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 56px;margin-top:64px}
.obj-lists h3{font-size:20px;font-weight:500}
.obj-lists ul{list-style:none;margin:14px 0 0;padding:0;border-top:1px solid var(--hair)}
.obj-lists li{padding:11px 0;border-bottom:1px solid var(--hair);font-size:15.5px}

/* процесс */
.process{background:var(--card);border-block:1px solid var(--hair)}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:20px;counter-reset:s;position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:15px;height:2px;background:var(--hair)}
.steps::after{content:"";position:absolute;left:0;top:15px;height:2px;width:var(--p,100%);background:var(--wine)}
.steps li{counter-increment:s;position:relative;display:flex;flex-direction:column;gap:8px;padding-top:48px}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;top:0;left:0;width:32px;height:32px;border-radius:50%;background:var(--wine);color:#fff;font-size:12px;font-weight:600;display:grid;place-items:center}
.steps b{font-family:var(--f-display);font-weight:500;font-size:18px}
.steps span{color:var(--muted);font-size:14.5px;line-height:1.5}
.values{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:64px}
.values div{background:var(--wine-soft);border-radius:20px;padding:24px}
.values b{font-family:var(--f-display);font-size:21px;font-weight:500;color:var(--wine)}
.values p{margin-top:8px;font-size:15px;color:var(--muted)}

/* IT */
.it{position:relative;overflow:hidden;background:var(--it-b);color:var(--it-ink);padding-block:clamp(72px,10vw,120px) 0}
.it > .blob{opacity:.9}
.it .b1{width:50%;top:-20%;right:-10%}
.it .b2{width:45%;bottom:10%;left:-15%}
.it-head{position:relative;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px 64px;align-items:end}
.it-head h2{font-size:clamp(44px,6vw,84px);line-height:.95;margin-top:12px}
.it-head .sec-lead{color:#4A4F5C}
.it-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.it .btn-ghost{box-shadow:inset 0 0 0 1.5px rgba(22,24,28,.2)}
.reel-wrap{position:relative;margin-top:56px;padding-bottom:clamp(64px,8vw,104px)}
.reel{display:flex;gap:20px;padding-left:max(20px,calc((100vw - 1200px)/2 + 20px));padding-right:max(20px,env(safe-area-inset-right,0px));width:max-content}
.pj{width:min(560px,82vw);flex:none;display:flex;flex-direction:column;gap:14px}
.pj-viz{position:relative;aspect-ratio:16/11;border-radius:22px;background:rgba(255,255,255,.55);box-shadow:inset 0 0 0 1px rgba(22,24,28,.06);overflow:hidden}
.pj-viz .br{position:absolute;left:5%;top:9%;width:78%;border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 20px 50px rgba(22,24,28,.16)}
.pj-viz .br::before{content:"";display:block;height:20px;background:#fff;border-bottom:1px solid rgba(22,24,28,.08);background-image:radial-gradient(circle at 12px 10px,#E3E4E7 3px,transparent 3.5px),radial-gradient(circle at 24px 10px,#E3E4E7 3px,transparent 3.5px),radial-gradient(circle at 36px 10px,#E3E4E7 3px,transparent 3.5px)}
.pj-viz .br img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top}
.pj-viz .ph-m{position:absolute;right:5%;bottom:-6%;width:28%;border-radius:20px;background:#16181C;padding:4px;box-shadow:0 20px 40px rgba(22,24,28,.25)}
.pj-viz .ph-m img{width:100%;aspect-ratio:9/19;object-fit:cover;object-position:top;border-radius:16px}
.pj-viz.solo .ph-m{right:auto;left:50%;transform:translateX(-50%);bottom:-10%;width:34%}
.pj h3{font-size:22px;font-weight:600}
.pj p{color:#4A4F5C;font-size:15px;max-width:46ch}
.pj .tag{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#6A7080;font-weight:600}

/* вакансии */
.jobs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.job{display:flex;flex-direction:column;gap:10px;background:var(--card);border:1px solid var(--hair);border-radius:20px;padding:24px;text-align:left;cursor:pointer;transition:border-color .2s,transform .3s var(--ease)}
.job:hover{border-color:var(--wine);transform:translateY(-3px)}
.job b{font-family:var(--f-display);font-weight:500;font-size:19px}
.job span{color:var(--muted);font-size:14.5px}
.job em{font-style:normal;margin-top:auto;padding-top:8px;color:var(--wine);font-weight:600;font-size:14px}

/* контакты и формы */
.contacts{background:var(--wine-soft)}
.contacts-in{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px 64px;align-items:start}
.contacts h2{font-size:clamp(32px,4.4vw,56px);line-height:1.04;margin-top:12px}
.contacts .sec-lead{margin-top:14px}
.cards{display:grid;gap:10px;margin-top:32px}
.cards div{background:var(--card);border-radius:18px;padding:18px 20px;display:flex;flex-direction:column;gap:2px}
.cards span{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:4px}
.cards b{font-weight:500;overflow-wrap:anywhere}
.card-form{background:var(--card);border-radius:var(--r);padding:clamp(22px,3.5vw,36px);box-shadow:0 30px 60px rgba(117,12,15,.08)}
.lead-form{display:grid;gap:14px}
.seg{display:flex;gap:6px;flex-wrap:wrap;background:var(--bg);padding:5px;border-radius:999px;border:1px solid var(--hair)}
.seg label{flex:1 1 auto}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;text-align:center;padding:10px 14px;border-radius:999px;font-size:14px;font-weight:500;cursor:pointer;white-space:nowrap;transition:background .2s,color .2s}
.seg input:checked + span{background:var(--fg);color:#fff}
.seg input:focus-visible + span{outline:2px solid var(--wine);outline-offset:2px}
.row2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.f{display:flex;flex-direction:column;gap:6px;min-width:0}
.f .l{font-size:13px;color:var(--muted);font-weight:500}
.f input,.f select,.f textarea{font:inherit;font-size:16px;color:var(--fg);background:var(--bg);border:1.5px solid var(--hair);border-radius:14px;padding:13px 14px;width:100%;transition:border-color .2s,background .2s}
.f textarea{resize:vertical;min-height:110px}
.f input:focus,.f select:focus,.f textarea:focus{outline:none;border-color:var(--wine);background:#fff}
.f.bad input{border-color:#C2272D;background:#FFF6F6}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.consent input{margin-top:3px;width:18px;height:18px;accent-color:var(--wine);flex:none}
.consent.bad{color:#C2272D}
.err{color:#C2272D;font-size:14px}
.ok{background:#EEF7F0;border-radius:16px;padding:20px}
.ok b{font-family:var(--f-display);font-size:20px;font-weight:500}
.ok p{color:var(--muted);margin-top:6px}
.lead-form.sent > :not(.ok){display:none}
.lead-form button[disabled]{opacity:.6;cursor:wait}

/* модальное окно */
.modal{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.modal-bg{position:absolute;inset:0;background:rgba(18,14,16,.55);backdrop-filter:blur(4px)}
.modal-box{position:relative;background:var(--card);border-radius:28px;width:min(640px,100%);max-height:100%;overflow:auto;padding:clamp(22px,4vw,40px)}
.modal-box h2{font-size:30px;margin-bottom:18px;padding-right:40px}
.modal-x{position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:50%;border:0;background:var(--bg);font-size:24px;line-height:1;cursor:pointer}
body.lock{overflow:hidden}

/* подвал */
.foot-site{background:var(--fg);color:#CFC6C7;padding-block:44px calc(44px + env(safe-area-inset-bottom,0px));font-size:14px}
.foot-in{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) minmax(0,1fr);gap:24px}
.foot-site .brand{color:#fff}
.foot-site .brand svg path{fill:#fff}
.foot-site a{color:#fff}

/* адаптив */
@media (max-width:1000px){
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:36px}
  .steps::before,.steps::after{display:none}
  .gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .jobs{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  .nav,.top .btn-sm{display:none}
  .burger{display:block}
  .hero-row,.sec-head,.svc,.lights-text,.it-head,.contacts-in,.obj-lists,.foot-in{grid-template-columns:minmax(0,1fr)}
  .doors{flex-direction:column;min-height:0}
  .door{min-height:440px}
  .svc-list{flex-direction:row;overflow-x:auto;border-top:0;gap:6px;padding-bottom:4px;scrollbar-width:none}
  .svc-list button{flex:none;border:1px solid var(--hair);border-radius:999px;padding:10px 16px;font-size:15px;white-space:nowrap}
  .svc-list button::after{display:none}
  .svc-list button[aria-selected="true"]{padding-left:16px;background:var(--fg);color:#fff;border-color:var(--fg)}
  .svc-panel{min-height:0}
  .nums,.values{grid-template-columns:minmax(0,1fr)}
  .nums div{padding-right:0}
}
@media (max-width:560px){
  .steps,.jobs,.row2,.svc-panel ul{grid-template-columns:minmax(0,1fr)}
  .gallery{grid-auto-rows:180px}
  .ph-big{grid-column:span 2;grid-row:span 1}
  .stats{gap:16px 28px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
}
@media (max-width:860px){
  .reel-wrap{overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .reel{padding-left:max(20px,env(safe-area-inset-left,0px))}
  .pj{scroll-snap-align:start}
}
@media (min-width:861px){.reel-wrap{overflow:hidden}}
.gallery .ph:last-child:not(.ph-big){grid-column:span 2}
@media (max-width:560px){
  .seg{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-radius:18px}
  .seg span{white-space:normal;font-size:13px;line-height:1.2;padding:9px 6px;border-radius:14px;height:100%;display:grid;place-items:center}
}