/* AIR GROUP: графит и красный.
   Палитра взята от знака из презентации (#ED1C24) и выстроена на тёмно-сером,
   а не на чёрном: графит держит объём и не схлопывает фотографии с выставок. */
:root{
  --bg:#131417;        /* основной графит */
  --bg2:#191B1F;       /* чередующаяся полоса */
  --bg3:#202329;       /* карточки и поля */
  --ink:#0D0E10;       /* самый тёмный, подложки под фото */
  --line:rgba(255,255,255,.09);
  --line2:rgba(255,255,255,.16);
  --tx:#EDEFF2;
  --mu:#98A0AB;
  --rd:#ED1C24;        /* фирменный красный */
  --rd2:#FF4740;       /* подсветка */
  --rd-dim:rgba(237,28,36,.14);
  --wrap:1200px;
  --ease:cubic-bezier(.22,.7,.26,1);
}
/* регистрируем масштаб как анимируемое свойство: иначе плавного наезда не будет */
@property --ps{syntax:'<number>';inherits:true;initial-value:1}
@property --py{syntax:'<length>';inherits:true;initial-value:0px}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--tx);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}
.mono{font-family:'JetBrains Mono',ui-monospace,Menlo,monospace}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:999;background:var(--rd);color:#fff;padding:10px 16px;border-radius:4px}

h1,h2,h3,h4{line-height:1.1;margin:0 0 18px;font-weight:700;letter-spacing:-.025em}
h1{font-size:clamp(40px,6.6vw,84px);font-weight:900;letter-spacing:-.04em;line-height:.98}
h2{font-size:clamp(29px,3.8vw,48px)}
h3{font-size:clamp(21px,2.2vw,27px)}
p{margin:0 0 16px;color:#BFC6CF}
.lead{font-size:clamp(17.5px,1.5vw,20px);color:#D6DBE2}

/* подпись раздела с красной насечкой */
.eyebrow{
  display:flex;align-items:center;gap:12px;
  font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--rd2);font-weight:500;margin-bottom:16px;
}
.eyebrow i{display:block;width:26px;height:2px;background:var(--rd);flex:0 0 26px}
.eyebrow--hero{color:#fff}
.eyebrow--hero i{width:44px;flex-basis:44px}

/* индикатор прокрутки */
.prog{position:fixed;top:0;left:0;right:0;height:2px;z-index:90;background:transparent;pointer-events:none}
.prog i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--rd),var(--rd2))}

/* ---------- brand ---------- */
.brand{display:flex;align-items:center;gap:13px}
.brand__logo{width:auto;height:30px;display:block}
.brand__sub{
  font-family:'JetBrains Mono',monospace;font-size:8.5px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--mu);border-left:1px solid var(--line2);
  padding-left:13px;line-height:1.5;white-space:nowrap;
}
.brand--foot .brand__logo{height:36px}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:80;border-bottom:1px solid transparent;
     transition:background .35s var(--ease),border-color .35s,backdrop-filter .35s}
.nav.is-stuck{background:rgba(19,20,23,.86);backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.nav__in{display:flex;align-items:center;gap:26px;height:78px}
.nav__links{display:flex;gap:22px;margin-left:auto;font-size:14px}
.nav__links a{
  color:var(--mu);transition:color .22s;white-space:nowrap;position:relative;padding:4px 0;
}
.nav__links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;
  background:var(--rd);transition:right .3s var(--ease);
}
.nav__links a:hover,.nav__links a.is-cur{color:#fff}
.nav__links a:hover::after,.nav__links a.is-cur::after{right:0}
.burger{display:none;background:none;border:0;padding:8px;cursor:pointer;margin-left:auto}
.burger span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.28s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- кнопки с заливкой при наведении ---------- */
.btn{
  position:relative;display:inline-block;overflow:hidden;cursor:pointer;
  background:var(--rd);border:1px solid var(--rd);border-radius:3px;
  padding:15px 30px;font:inherit;font-size:15px;font-weight:600;color:#fff;letter-spacing:.01em;
  transition:border-color .3s,transform .25s var(--ease),box-shadow .3s;
}
.btn span{position:relative;z-index:2}
.btn::before{
  content:"";position:absolute;inset:0;background:var(--rd2);
  transform:translateY(101%);transition:transform .38s var(--ease);z-index:1;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(237,28,36,.3)}
.btn:hover::before{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--line2);color:var(--tx)}
.btn--ghost::before{background:var(--rd)}
.btn--ghost:hover{border-color:var(--rd);color:#fff;box-shadow:none}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--wide{width:100%;text-align:center}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:var(--ink)}
.hero__bg{position:absolute;inset:-6% 0 0;will-change:transform}
.hero__bg img{width:100%;height:112%;object-fit:cover;filter:saturate(.72) contrast(1.06)}
.hero__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(13,14,16,.9) 0%,rgba(13,14,16,.28) 32%,rgba(13,14,16,.84) 76%,var(--bg) 100%),
    radial-gradient(1200px 640px at 14% 70%,rgba(13,14,16,.82),transparent 70%),
    linear-gradient(90deg,rgba(237,28,36,.1),transparent 45%);
}
.hero__grid{
  position:absolute;inset:0;opacity:.3;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:84px 84px;
  mask-image:radial-gradient(130% 90% at 50% 40%,#000 25%,transparent 75%);
}
.hero__scan{
  position:absolute;left:0;right:0;height:230px;top:-230px;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(237,28,36,.14),transparent);
  animation:scan 7.5s linear infinite;
}
@keyframes scan{to{top:120%}}
.hero__in{position:relative;padding-bottom:76px;padding-top:150px}
.hero h1{max-width:15ch;text-shadow:0 2px 50px rgba(0,0,0,.65)}
.hero h1 em{font-style:normal;color:var(--rd2)}
.hero__lead{font-size:clamp(17px,1.5vw,20.5px);max-width:56ch;color:#D6DBE2;margin-top:22px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

/* построчное появление заголовка */
.split-lines span{display:block;overflow:hidden}
.split-lines span>em,.split-lines span{will-change:transform}
.split-lines>span{opacity:0;transform:translateY(100%);animation:lineUp .95s var(--ease) forwards}
.split-lines>span:nth-child(1){animation-delay:.12s}
.split-lines>span:nth-child(2){animation-delay:.24s}
.split-lines>span:nth-child(3){animation-delay:.36s}
@keyframes lineUp{to{opacity:1;transform:translateY(0)}}
.hero .eyebrow--hero,.hero__lead,.hero__cta{opacity:0;animation:fadeUp .9s var(--ease) forwards}
.hero .eyebrow--hero{animation-delay:.05s}
.hero__lead{animation-delay:.5s}
.hero__cta{animation-delay:.62s}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.hero__down{
  position:absolute;right:28px;bottom:170px;z-index:3;
  width:26px;height:42px;border:1px solid var(--line2);border-radius:14px;
  transition:border-color .3s;
}
.hero__down:hover{border-color:var(--rd)}
.hero__down i{
  position:absolute;left:50%;top:9px;width:3px;height:7px;border-radius:2px;background:var(--rd2);
  transform:translateX(-50%);animation:mouse 1.9s var(--ease) infinite;
}
@keyframes mouse{0%{opacity:0;transform:translate(-50%,0)}30%{opacity:1}100%{opacity:0;transform:translate(-50%,16px)}}

.hero__strip{position:relative;border-top:1px solid var(--line);background:rgba(13,14,16,.74);backdrop-filter:blur(10px)}
.hero__facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.fact{padding:28px 26px 28px 0;position:relative}
.fact+.fact{padding-left:26px;border-left:1px solid var(--line)}
.fact b{display:block;font-size:20px;font-weight:700;letter-spacing:-.015em}
.fact span{display:block;font-size:13px;color:var(--mu);margin-top:6px;line-height:1.45}
.fact::after{content:"";position:absolute;left:0;bottom:-1px;width:0;height:2px;background:var(--rd);transition:width .5s var(--ease)}
.fact.is-in::after{width:38px}
.fact+.fact::after{left:26px}

/* ---------- бегущая строка компетенций ---------- */
.ticker{overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg2);padding:15px 0}
.ticker__row{display:flex;align-items:center;gap:26px;width:max-content;animation:run 38s linear infinite}
.ticker__row span{
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.17em;
  text-transform:uppercase;color:var(--mu);white-space:nowrap;
}
.ticker__row i{width:5px;height:5px;background:var(--rd);border-radius:50%;flex:0 0 5px}
@keyframes run{to{transform:translateX(-50%)}}
.ticker:hover .ticker__row{animation-play-state:paused}

/* ---------- секции ---------- */
.sect{padding:clamp(76px,9.5vw,132px) 0;position:relative}
.sect--alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:12px;flex-wrap:wrap}
.head__note{max-width:34ch;font-size:15.5px;color:var(--mu);margin:0 0 6px}
.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,5vw,76px);align-items:center}
.grid-2--tech,.grid-2--contact{align-items:start}

.shot{margin:0;position:relative;border-radius:4px;overflow:hidden;border:1px solid var(--line);background:var(--ink)}
.shot img{
  width:100%;aspect-ratio:4/3;object-fit:cover;will-change:transform;
  transform:translate3d(0,var(--py,0),0) scale(var(--ps,1.1));
  transition:--ps 1.1s var(--ease);
}
.shot:hover{--ps:1.15}
.shot figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 20px 16px;
  font-size:13px;color:#D6DBE2;
  background:linear-gradient(180deg,transparent,rgba(13,14,16,.92));
}
.shot figcaption .mono{color:var(--rd2);margin-right:8px}

.ticks{list-style:none;padding:0;margin:24px 0 0}
.ticks li{position:relative;padding-left:26px;margin-bottom:11px;color:#BFC6CF;font-size:16px}
.ticks li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;background:var(--rd);
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
}
.ticks b{color:#fff;font-weight:600}

/* ---------- карточки преимуществ ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:40px;background:var(--line)}
.card{
  position:relative;background:var(--bg2);padding:34px 30px 32px;overflow:hidden;
  transition:background .35s var(--ease),transform .35s var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:var(--rd);
  transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease);
}
.card:hover{background:var(--bg3);transform:translateY(-4px)}
.card:hover::before{transform:scaleX(1)}
.card__n{display:block;font-size:12px;letter-spacing:.2em;color:var(--rd2);margin-bottom:18px}
.card h3{font-size:20px;margin-bottom:12px}
.card p{font-size:15.5px;margin:0;color:#A9B2BD}
.card__sweep{
  position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .4s;
  background:radial-gradient(420px 220px at var(--mx,50%) var(--my,50%),rgba(237,28,36,.13),transparent 70%);
}
.card:hover .card__sweep{opacity:1}

/* ---------- схема работы ---------- */
.flow{background:
   linear-gradient(180deg,var(--bg),var(--ink) 55%,var(--bg));}
.steps{list-style:none;margin:48px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative}
.steps__line{
  position:absolute;left:0;top:19px;height:1px;width:100%;
  background:linear-gradient(90deg,var(--rd) var(--p,0%),var(--line) var(--p,0%));
  transition:background .2s linear;
}
.step{position:relative;padding-top:52px}
.step__n{
  position:absolute;top:0;left:0;width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:12px;
  background:var(--bg);border:1px solid var(--line2);color:var(--mu);
  transition:border-color .4s,color .4s,background .4s,box-shadow .4s;
}
.step.is-in .step__n{border-color:var(--rd);color:#fff;background:var(--rd);box-shadow:0 0 0 6px var(--rd-dim)}
.step h3{font-size:20px;margin-bottom:10px}
.step p{font-size:15px;color:#A9B2BD;margin:0}

/* ---------- модели ---------- */
.model{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,4.6vw,70px);align-items:center;padding:52px 0;border-top:1px solid var(--line)}
.model:first-of-type{margin-top:36px}
.model--rev .model__img{order:2}
.model__img{
  position:relative;margin:0;border-radius:4px;overflow:hidden;border:1px solid var(--line);
  background:var(--ink);transition:--ps 1.2s var(--ease);
}
.model__img img{
  width:100%;aspect-ratio:16/10;object-fit:cover;will-change:transform;
  transform:translate3d(0,var(--py,0),0) scale(var(--ps,1.12));
}
.model:hover .model__img{--ps:1.17}
.model__badge{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  background:rgba(237,28,36,.92);color:#fff;padding:6px 11px;border-radius:2px;
}
.tag{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mu);margin-bottom:12px}
.model h3{font-size:clamp(28px,3.4vw,42px);letter-spacing:-.035em;margin-bottom:16px}
.model h3 span{color:var(--rd2);font-weight:600}
.model__sub{
  font-size:15.5px;color:#A9B2BD;margin-top:22px;padding:16px 18px;
  border-left:2px solid var(--rd);background:rgba(237,28,36,.055);border-radius:0 3px 3px 0;
}
.model__sub b{color:#fff}

/* ---------- FUGA ---------- */
.fuga{position:relative;overflow:hidden;border-top:1px solid var(--line);background:var(--ink)}
.fuga__bg{position:absolute;inset:-8% 0;will-change:transform}
.fuga__bg img{width:100%;height:116%;object-fit:cover;opacity:.3;filter:saturate(.6);transform:translate3d(0,var(--py,0),0);will-change:transform}
.fuga::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,14,16,.93),rgba(13,14,16,.78) 45%,rgba(13,14,16,.97)),
             linear-gradient(90deg,rgba(237,28,36,.12),transparent 55%);
}
.fuga__in{position:relative;z-index:2}
.fuga__h{font-size:clamp(52px,8vw,108px);font-weight:900;letter-spacing:-.05em;margin-bottom:10px}
.fuga__lead{font-size:clamp(18px,1.9vw,23px);color:#D6DBE2;max-width:44ch;font-weight:300}

.chain{display:flex;align-items:stretch;gap:0;margin:40px 0 10px;flex-wrap:wrap}
.chain__i{
  background:rgba(32,35,41,.84);border:1px solid var(--line2);border-radius:3px;
  padding:16px 24px;min-width:168px;backdrop-filter:blur(6px);
}
.chain__i b{display:block;font-size:19px;font-weight:700;letter-spacing:-.01em}
.chain__i em{display:block;font-style:normal;font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--rd2);margin-top:5px;letter-spacing:.08em}
.chain__a{
  align-self:center;width:52px;height:2px;background:var(--line2);position:relative;flex:0 0 52px;
}
.chain__a::after{
  content:"";position:absolute;right:-1px;top:-4px;width:0;height:0;
  border-left:8px solid var(--line2);border-top:5px solid transparent;border-bottom:5px solid transparent;
}
.chain.is-in .chain__a{background:var(--rd);animation:pulse 2.4s var(--ease) infinite}
.chain.is-in .chain__a::after{border-left-color:var(--rd)}
.chain.is-in .chain__a:nth-of-type(2){animation-delay:.4s}
@keyframes pulse{0%,100%{opacity:.45}50%{opacity:1}}

.split{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:38px}
.split__col{background:rgba(25,27,31,.82);border:1px solid var(--line);border-radius:4px;padding:32px 30px;backdrop-filter:blur(8px)}
.split__col--hi{border-color:rgba(237,28,36,.42);background:rgba(37,24,26,.82)}
.split__col h4{font-size:19px;margin-bottom:18px;letter-spacing:-.01em}
.split__col h4 .mono{
  display:block;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--mu);font-weight:500;margin-bottom:9px;
}
.split__col--hi h4 .mono{color:var(--rd2)}
.split__col ul{margin:0;padding-left:20px}
.split__col li{margin-bottom:11px;color:#B5BDC8;font-size:15.5px}
.split__col--hi li::marker{color:var(--rd)}

/* ---------- технологии ---------- */
.tech{background:var(--bg3);border:1px solid var(--line);border-radius:4px;overflow:hidden;transition:border-color .35s,transform .35s var(--ease)}
.tech:hover{border-color:rgba(237,28,36,.4);transform:translateY(-3px)}
.tech__img{margin:0;background:var(--ink);overflow:hidden}
.tech__img img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 1.1s var(--ease)}
.tech:hover .tech__img img{transform:scale(1.05)}
.tech__b{padding:28px 30px 30px}
.tech h3{margin-bottom:12px}
.tech p{font-size:15.5px}
.tech .ticks{margin-top:14px}
.tech .ticks li{font-size:15px}

/* ---------- применение ---------- */
.tabs{position:relative;display:flex;gap:4px;margin:40px 0 0;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.tab{
  background:transparent;border:0;color:var(--mu);padding:14px 22px;
  font:inherit;font-size:15px;cursor:pointer;transition:color .25s;position:relative;
}
.tab:hover{color:#fff}
.tab.is-on{color:#fff;font-weight:600}
.tabs__ink{position:absolute;bottom:-1px;left:0;height:2px;width:0;background:var(--rd);transition:left .4s var(--ease),width .4s var(--ease)}
.tabp{display:none}
.tabp.is-on{display:block}

.rows{list-style:none;margin:0;padding:0}
.rows li{
  display:grid;grid-template-columns:54px minmax(220px,1fr) 1.35fr;gap:20px;align-items:baseline;
  padding:21px 0;border-bottom:1px solid var(--line);position:relative;
  opacity:0;transform:translateY(14px);animation:rowIn .55s var(--ease) forwards;
}
.rows li:nth-child(1){animation-delay:.02s}.rows li:nth-child(2){animation-delay:.08s}
.rows li:nth-child(3){animation-delay:.14s}.rows li:nth-child(4){animation-delay:.2s}
.rows li:nth-child(5){animation-delay:.26s}.rows li:nth-child(6){animation-delay:.32s}
@keyframes rowIn{to{opacity:1;transform:none}}
.rows li::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;background:var(--rd);transition:width .5s var(--ease)}
.rows li:hover::after{width:100%}
.rows span{font-size:11.5px;color:var(--rd2);letter-spacing:.14em}
.rows b{font-size:16.5px;font-weight:600;color:#fff}
.rows p{margin:0;font-size:15.5px;color:#A9B2BD}

/* ---------- таймлайн и галерея ---------- */
.time{list-style:none;margin:44px 0 52px;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.time li{position:relative;border-top:1px solid var(--line);padding-top:20px}
.time li::before{content:"";position:absolute;left:0;top:-1px;width:0;height:2px;background:var(--rd);transition:width .7s var(--ease)}
.time li.is-in::before{width:54px}
.time b{display:block;font-size:30px;font-weight:800;letter-spacing:-.03em;margin-bottom:9px}
.time span{font-size:14.5px;color:var(--mu);line-height:1.5}

.gal{columns:4;column-gap:14px}
.gal figure{
  margin:0 0 14px;border-radius:3px;overflow:hidden;border:1px solid var(--line);
  break-inside:avoid;position:relative;background:var(--ink);display:block;cursor:zoom-in;
}
.gal img{width:100%;height:auto;display:block;transition:transform .7s var(--ease),filter .5s}
.gal figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:28px 14px 13px;
  font-size:12.5px;line-height:1.35;color:#EDEFF2;
  background:linear-gradient(180deg,transparent,rgba(13,14,16,.9));
  opacity:0;transform:translateY(8px);transition:opacity .32s,transform .32s var(--ease);
}
.gal figure::after{
  content:"";position:absolute;inset:0;border:2px solid var(--rd);opacity:0;
  transition:opacity .32s;pointer-events:none;
}
.gal figure:hover img{transform:scale(1.045)}
.gal figure:hover figcaption{opacity:1;transform:none}
.gal figure:hover::after{opacity:1}

/* ---------- сегодня ---------- */
.today{position:relative;background:var(--ink);border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
.today__bg{
  position:absolute;inset:0;opacity:.5;
  background:radial-gradient(760px 420px at 82% 18%,rgba(237,28,36,.2),transparent 68%);
}
.today__in{position:relative;max-width:840px}
.today__big{
  font-size:clamp(22px,2.7vw,34px);line-height:1.38;color:#fff;font-weight:300;
  letter-spacing:-.018em;margin-bottom:24px;
}

/* ---------- контакты ---------- */
.conts{margin-top:32px;display:grid}
.cont{display:block;padding:20px 0;border-top:1px solid var(--line);position:relative}
.cont span{display:block;font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mu);margin-bottom:7px}
.cont b{font-size:22px;font-weight:600;letter-spacing:-.015em;transition:color .25s}
.cont i{position:absolute;left:0;top:-1px;height:1px;width:0;background:var(--rd);transition:width .45s var(--ease)}
a.cont:hover b{color:var(--rd2)}
a.cont:hover i{width:100%}

.form{background:var(--bg3);border:1px solid var(--line);border-radius:4px;padding:34px 32px;display:grid;gap:18px}
.fld{position:relative;display:block}
.fld input,.fld textarea{
  width:100%;background:var(--ink);border:1px solid var(--line);border-radius:3px;
  color:#fff;font:inherit;font-size:16px;padding:22px 14px 10px;transition:border-color .25s,box-shadow .25s;
}
.fld textarea{resize:vertical;min-height:112px}
.fld span{
  position:absolute;left:15px;top:16px;font-size:15px;color:var(--mu);pointer-events:none;
  transition:transform .22s var(--ease),color .22s,font-size .22s;transform-origin:left top;
}
.fld input:focus,.fld textarea:focus{outline:none;border-color:var(--rd);box-shadow:0 0 0 3px var(--rd-dim)}
.fld input:focus+span,.fld textarea:focus+span,
.fld input:not(:placeholder-shown)+span,.fld textarea:not(:placeholder-shown)+span{
  transform:translateY(-10px) scale(.72);color:var(--rd2);
}
.form .hp{position:absolute;left:-9999px;width:1px;height:1px}
.form__note{font-size:14px;margin:0;min-height:20px;color:var(--mu)}
.form__note.ok{color:#5CD17E}
.form__note.err{color:var(--rd2)}

/* ---------- подвал ---------- */
.foot{padding:46px 0;border-top:1px solid var(--line);background:var(--bg2)}
.foot__in{display:flex;justify-content:space-between;align-items:center;gap:26px;flex-wrap:wrap}
.foot__copy{font-size:13.5px;color:var(--mu);margin:0;text-align:right;line-height:1.8}
.foot__copy a:hover{color:var(--rd2)}

/* ---------- лайтбокс ---------- */
.lb{
  position:fixed;inset:0;z-index:100;background:rgba(10,11,13,.96);backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;padding:70px 72px;
  opacity:0;visibility:hidden;transition:opacity .32s,visibility .32s;
}
.lb.is-on{opacity:1;visibility:visible}
.lb__f{margin:0;max-width:100%;max-height:100%;display:flex;flex-direction:column;align-items:center;gap:14px}
.lb__f img{max-width:100%;max-height:78vh;object-fit:contain;border:1px solid var(--line2);transform:scale(.97);transition:transform .34s var(--ease)}
.lb.is-on .lb__f img{transform:scale(1)}
.lb__f figcaption{font-size:14px;color:var(--mu);text-align:center}
.lb button{
  position:absolute;background:transparent;border:1px solid var(--line2);color:#fff;
  cursor:pointer;border-radius:3px;transition:border-color .25s,background .25s;
}
.lb button:hover{border-color:var(--rd);background:rgba(237,28,36,.16)}
.lb__x{top:22px;right:24px;width:44px;height:44px;font-size:26px;line-height:1}
.lb__p,.lb__n{top:50%;transform:translateY(-50%);width:44px;height:64px;font-size:28px;line-height:1}
.lb__p{left:18px}.lb__n{right:18px}

/* ---------- появление при прокрутке ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal--r{transform:translateY(26px) scale(.985)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
  .reveal,.split-lines>span,.hero .eyebrow--hero,.hero__lead,.hero__cta{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- адаптив ---------- */
@media (max-width:1060px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:34px 26px}
  .steps__line{display:none}
  .time{grid-template-columns:repeat(2,1fr)}
  .gal{columns:3}
  .hero__facts{grid-template-columns:repeat(2,1fr)}
  .fact{padding-right:18px}
  .fact:nth-child(3){border-left:0;padding-left:0}
  .fact:nth-child(3)::after,.fact:nth-child(1)::after{left:0}
  .fact:nth-child(3),.fact:nth-child(4){border-top:1px solid var(--line)}
}
@media (max-width:880px){
  body{font-size:16px}
  .nav__links{
    position:fixed;inset:78px 0 auto;background:rgba(19,20,23,.98);backdrop-filter:blur(18px);
    flex-direction:column;gap:0;padding:12px 28px 26px;border-bottom:1px solid var(--line);display:none;
  }
  .nav__links.is-open{display:flex}
  .nav__links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav__links a::after{display:none}
  .nav .btn--sm{display:none}
  .burger{display:block}
  .nav .brand__sub{display:none}
  .brand__logo{height:26px}
  .grid-2,.model,.split,.grid-2--tech{grid-template-columns:1fr}
  .model--rev .model__img{order:0}
  .model{padding:36px 0}
  .hero__down{display:none}
  .hero__in{padding-bottom:54px}
  .rows li{grid-template-columns:40px 1fr;gap:6px 16px}
  .rows p{grid-column:2/-1}
  .foot__in{flex-direction:column;align-items:flex-start}
  .foot__copy{text-align:left}
  .lb{padding:64px 16px}
  .lb__p{left:6px}.lb__n{right:6px}
}
@media (max-width:620px){
  .cards,.steps,.time,.hero__facts{grid-template-columns:1fr}
  .fact,.fact+.fact{border-left:0;padding-left:0;border-top:1px solid var(--line)}
  .fact:first-child{border-top:0}
  .fact::after,.fact+.fact::after{left:0}
  .gal{columns:2;column-gap:10px}
  .gal figure{margin-bottom:10px}
  .gal figcaption{opacity:1;transform:none;font-size:11.5px;padding:20px 10px 9px}
  .chain{flex-direction:column;align-items:flex-start}
  .chain__a{width:2px;height:28px;flex:0 0 28px;margin-left:26px}
  .chain__a::after{right:-4px;bottom:-1px;top:auto;border-left:5px solid transparent;border-right:5px solid transparent;border-top:8px solid var(--line2);border-bottom:0}
  .chain.is-in .chain__a::after{border-top-color:var(--rd);border-left-color:transparent}
  .chain__i{width:100%}
  .form{padding:26px 20px}
}