/* ==========================================================================
   ООО «Сфера» — электросетевое строительство 0,4–10 кВ
   Фирменный стиль «Свет на объекте».

   Ночь и свет: глубокий сине-чёрный фон — это территория до подключения,
   тёплый янтарь — свет, который приносит линия. Янтарём отмечено только то,
   что «под напряжением»: акценты, активные элементы, импульсы на проводах.

   Шрифты: Unbounded — заголовки, Onest — текст, JetBrains Mono — технические
   подписи (номиналы, этапы, показания).
   ========================================================================== */

:root{
  /* ночь */
  --bg:#060913;
  --bg-2:#0a0f1e;
  --bg-3:#0f1629;
  --panel:rgba(17,25,47,.66);
  --line:rgba(150,168,235,.12);
  --line-2:rgba(150,168,235,.22);

  /* текст на тёмном */
  --text:#eef1fa;
  --text-2:#a9b2cc;
  --text-3:#6c7693;

  /* свет */
  --amber:#ffb547;
  --amber-2:#ff8a3d;
  --amber-3:#ffd79a;
  --amber-glow:rgba(255,181,71,.34);
  --grad:linear-gradient(120deg,#ffe0a6 0%,#ffb547 42%,#ff8a3d 100%);
  --volt:#7c9cff;

  /* лист (светлый раздел) */
  --paper:#f4f0e7;
  --paper-2:#ebe5d8;
  --ink:#0c1122;
  --ink-2:#444b5f;
  --ink-3:#7b8195;
  --amber-ink:#b35f0a;

  --err:#ff6b5a;

  /* метрики */
  --maxw:1440px;
  --gut:48px;
  --hdr-h:78px;
  --sec-y:140px;
  --r:24px;
  --r-sm:14px;

  --f-display:'Unbounded','Onest',system-ui,sans-serif;
  --f-text:'Onest',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  --f-mono:'JetBrains Mono','SFMono-Regular',Consolas,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-spring:cubic-bezier(.34,1.56,.64,1);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:var(--hdr-h);-webkit-text-size-adjust:100%;overflow-x:clip}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--f-text);
  font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* плёночное зерно поверх всей страницы: убирает «цифровую» гладкость градиентов */
body::after{
  content:"";position:fixed;inset:0;z-index:200;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img,svg{max-width:100%}
a{color:inherit}
button{font:inherit}

h1,h2,h3{margin:0;font-family:var(--f-display);font-weight:500;letter-spacing:-.025em;text-wrap:balance}
h1{font-size:54px;line-height:1.06}
h2{font-size:44px;line-height:1.1}
h3{font-size:21px;line-height:1.22;letter-spacing:-.015em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
.nb{white-space:nowrap}

::selection{background:var(--amber);color:#1a0f00}

.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:var(--amber);color:#1a0f00;padding:14px 22px;font-weight:700}
.skip-link:focus{left:0}
.svg-defs{position:absolute;width:0;height:0;overflow:hidden}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}

/* ------------------------------ общие элементы ------------------------------ */
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;margin:0 0 26px;
  font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;
  color:var(--amber);
}
.eyebrow::before{
  content:"";width:8px;height:8px;border-radius:50%;flex:none;
  background:var(--amber);box-shadow:0 0 0 4px rgba(255,181,71,.14),0 0 14px var(--amber);
  animation:led 2.4s ease-in-out infinite;
}
.eyebrow--center{justify-content:center}
@keyframes led{50%{box-shadow:0 0 0 7px rgba(255,181,71,0),0 0 8px var(--amber)}}

.led{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--text-3);flex:none}
.led--on{background:var(--amber);box-shadow:0 0 10px var(--amber);animation:led 2.4s ease-in-out infinite}

.lead{font-size:20px;line-height:1.55;color:var(--text-2);max-width:60ch}

.u-accent{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  -webkit-box-decoration-break:clone;box-decoration-break:clone;
}
/* после разбивки на слова градиент несёт каждое слово: у сдвигаемых слов
   собственная обрезка по тексту надёжнее, чем общая у родителя */
.split .u-accent{background:none}
.u-accent .w__i{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* кнопки */
.btn{
  --bx:0px;--by:0px;
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;
  padding:15px 26px;border:0;border-radius:999px;cursor:pointer;
  font-family:var(--f-text);font-size:16px;font-weight:600;letter-spacing:-.005em;text-decoration:none;white-space:nowrap;
  color:#1b1003;background:var(--grad);background-size:140% 100%;background-position:0 0;
  box-shadow:0 0 0 1px rgba(255,214,150,.5) inset,0 10px 30px -8px rgba(255,150,60,.55),0 0 0 0 var(--amber-glow);
  transform:translate(var(--bx),var(--by));
  transition:transform .35s var(--ease-out),box-shadow .35s var(--ease),background-position .5s var(--ease);
}
.btn:hover{background-position:100% 0;box-shadow:0 0 0 1px rgba(255,214,150,.7) inset,0 14px 40px -8px rgba(255,150,60,.75),0 0 0 6px rgba(255,181,71,.14)}
.btn:active{transform:translate(var(--bx),var(--by)) scale(.97)}
.btn__ic{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none;transition:transform .35s var(--ease-out)}
.btn:hover .btn__ic{transform:translateX(4px)}
.btn--sm{padding:11px 20px;font-size:15px}
.btn--lg{padding:19px 32px;font-size:17px}
.btn--full{width:100%}
.btn--ghost{
  color:var(--text);background:rgba(255,255,255,.04);
  box-shadow:0 0 0 1px var(--line-2) inset;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn--ghost:hover{background:rgba(255,181,71,.08);box-shadow:0 0 0 1px rgba(255,181,71,.55) inset}
.btn[disabled]{opacity:.6;cursor:progress}

.tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.tags li{
  padding:6px 11px;border-radius:999px;border:1px solid var(--line-2);
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.04em;color:var(--text-2);
}

/* подсветка, которая следует за курсором */
.cursor-glow{
  position:fixed;left:0;top:0;width:640px;height:640px;margin:-320px 0 0 -320px;z-index:1;pointer-events:none;
  border-radius:50%;background:radial-gradient(circle,rgba(255,170,70,.075) 0%,rgba(255,170,70,0) 62%);
  mix-blend-mode:screen;opacity:0;transition:opacity .6s;will-change:transform;
}
.cursor-glow.is-on{opacity:1}

/* ------------------------------ появление ------------------------------ */
.js .reveal{opacity:0;transform:translateY(30px);transition:opacity 1s var(--ease-out),transform 1.1s var(--ease-out)}
.js .reveal.is-in{opacity:1;transform:none}
.js [data-reveal-delay="1"]{transition-delay:.08s}
.js [data-reveal-delay="2"]{transition-delay:.16s}
.js [data-reveal-delay="3"]{transition-delay:.24s}
.js [data-reveal-delay="4"]{transition-delay:.32s}
.js [data-reveal-delay="5"]{transition-delay:.4s}
.js [data-reveal-delay="6"]{transition-delay:.55s}

/* заголовки поднимаются по словам */
.split .w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.12em;margin-bottom:-.12em}
.split .w__i{display:inline-block;transform:translateY(105%);transition:transform 1.1s var(--ease-out);transition-delay:calc(var(--i) * 45ms)}
.split.is-in .w__i{transform:none}
.no-split .split .w__i{transform:none}

/* ============================== ШАПКА ============================== */
.hdr{position:fixed;left:0;right:0;top:0;z-index:100;transition:background .4s var(--ease),box-shadow .4s}
.hdr__bar{
  max-width:1440px;margin:0 auto;height:var(--hdr-h);padding-inline:var(--gut);
  display:flex;align-items:center;gap:40px;
}
.hdr.is-scrolled{
  background:rgba(6,9,19,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.3);backdrop-filter:blur(18px) saturate(1.3);
  box-shadow:0 1px 0 var(--line);
}
/* над светлым разделом шапка становится светлым стеклом */
.hdr .nav a,.hdr .tel,.hdr .logo__txt b,.hdr .logo__txt i{transition:color .4s}
.hdr.hdr--light.is-scrolled{background:rgba(244,240,231,.8);box-shadow:0 1px 0 rgba(12,17,34,.1)}
.hdr--light .nav a{color:var(--ink-2)}
.hdr--light .nav a:hover{color:var(--ink);background:rgba(12,17,34,.05)}
.hdr--light .nav a.is-active{color:var(--ink)}
.hdr--light .logo__txt b,.hdr--light .tel{color:var(--ink)}
.hdr--light .logo__txt i{color:var(--ink-3)}
.hdr__progress{position:absolute;left:0;bottom:-1px;height:2px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--grad);box-shadow:0 0 12px var(--amber)}

.logo{display:flex;align-items:center;gap:13px;text-decoration:none;flex:none}
.logo__mark{display:block;width:auto;height:42px;flex:none}
.logo__txt{display:flex;flex-direction:column;line-height:1.1}
.logo__txt b{font-family:var(--f-display);font-weight:600;font-size:21px;letter-spacing:.02em;text-transform:uppercase}
.logo__txt i{font-style:normal;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-top:4px}

.nav{display:flex;gap:6px;margin-inline:auto}
.nav a{
  position:relative;padding:9px 14px;border-radius:999px;text-decoration:none;white-space:nowrap;
  font-size:15px;font-weight:500;color:var(--text-2);transition:color .25s,background .25s;
}
.nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav a.is-active{color:var(--text)}
.nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;width:5px;height:5px;margin-left:-2.5px;border-radius:50%;
  background:var(--amber);box-shadow:0 0 8px var(--amber);
}

.hdr__cta{display:flex;align-items:center;gap:22px;flex:none}
.tel{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--f-mono);font-size:14.5px;font-weight:500;letter-spacing:.02em;white-space:nowrap}
.tel .led{background:var(--amber);box-shadow:0 0 8px var(--amber);animation:led 2.4s ease-in-out infinite}
.tel:hover{color:var(--amber)}

/* ============================== ГЕРОЙ ============================== */
.hero{position:relative;height:100vh;min-height:700px;max-height:1100px;overflow:hidden;background:#03050c;isolation:isolate}
.hero__stage{position:absolute;inset:0;z-index:0}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity 1.8s var(--ease)}
.hero__stage.is-live .hero__canvas{opacity:1}
.hero__still{position:absolute;inset:0;width:100%;height:100%;transition:opacity 1.2s var(--ease)}
.hero__stage.is-live .hero__still{opacity:0}

.hero__veil{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(3,5,12,.88) 0%,rgba(3,5,12,.62) 30%,rgba(3,5,12,.12) 56%,rgba(3,5,12,0) 70%),
    linear-gradient(0deg,var(--bg) 0%,rgba(6,9,19,.7) 14%,rgba(6,9,19,0) 34%),
    linear-gradient(180deg,rgba(3,5,12,.7) 0%,rgba(3,5,12,0) 16%);
}

.hero__inner{
  position:relative;z-index:2;height:100%;max-width:1440px;
  display:grid;grid-template-columns:minmax(0,800px) 1fr;align-items:center;gap:40px;
  padding-top:calc(var(--hdr-h) - 10px);padding-bottom:150px;
}
.hero__copy h1{margin-bottom:30px}
.hero__copy .lead{margin-bottom:40px;max-width:58ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.hero__free{
  display:inline-flex;align-items:center;gap:10px;margin-top:26px;
  font-size:15px;color:var(--text-2);
}
.hero__free svg{width:18px;height:18px;fill:var(--amber);filter:drop-shadow(0 0 6px var(--amber))}

/* осциллограф в углу героя */
.meter{
  justify-self:end;align-self:end;width:320px;margin-bottom:10px;
  padding:18px 18px 16px;border-radius:18px;
  background:rgba(8,12,26,.55);border:1px solid var(--line-2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.8);
}
.meter__head{display:flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);margin-bottom:12px}
.meter__scope{display:block;width:100%;height:86px;border-radius:10px;background:rgba(0,0,0,.35);overflow:hidden}
.meter__grid{stroke:rgba(150,168,235,.12);stroke-width:1;fill:none}
.meter__waves{animation:scope 2.2s linear infinite}
.ph{fill:none;stroke-width:1.8;stroke-linecap:round}
.ph--a{stroke:var(--amber);filter:drop-shadow(0 0 3px var(--amber))}
.ph--b{stroke:#f2f4fb;opacity:.75}
.ph--c{stroke:var(--volt);opacity:.85}
@keyframes scope{to{transform:translateX(-140px)}}
.meter__vals{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:8px;margin:14px 0 0}
.meter__vals div{padding:8px 10px;border-radius:10px;background:rgba(255,255,255,.03);border:1px solid var(--line)}
.meter__vals dt{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
.meter__vals dd{margin:2px 0 0;font-family:var(--f-mono);font-size:14px;font-weight:500;color:var(--text);white-space:nowrap}

.hero__foot{position:absolute;left:0;right:0;bottom:44px;z-index:2;max-width:1440px;display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
.hero__stats{display:grid;grid-template-columns:repeat(4,auto);gap:0;margin:0}
.hero__stats div{padding:4px 40px 4px 0;margin-right:40px;border-right:1px solid var(--line-2)}
.hero__stats div:last-child{border-right:0;margin-right:0}
.hero__stats dt{font-family:var(--f-display);font-size:26px;font-weight:500;letter-spacing:-.02em;line-height:1.1}
.hero__stats dd{margin:6px 0 0;font-size:13.5px;line-height:1.4;color:var(--text-3);max-width:190px}

.hero__scroll{
  flex:none;width:30px;height:48px;border-radius:999px;border:1.5px solid var(--line-2);
  display:flex;justify-content:center;padding-top:9px;transition:border-color .3s;
}
.hero__scroll span{width:3px;height:9px;border-radius:3px;background:var(--amber);box-shadow:0 0 8px var(--amber);animation:scrollDot 2s var(--ease) infinite}
.hero__scroll:hover{border-color:var(--amber)}
@keyframes scrollDot{0%{transform:translateY(0);opacity:1}70%{transform:translateY(16px);opacity:0}100%{opacity:0}}

/* ============================== БЕГУЩАЯ СТРОКА ============================== */
.ticker{
  position:relative;overflow:hidden;padding:26px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,181,71,.03),rgba(255,181,71,0));
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.ticker__track{display:flex;width:max-content;animation:ticker 48s linear infinite}
.ticker:hover .ticker__track{animation-play-state:paused}
.ticker__row{display:flex;align-items:center;gap:34px;padding-right:34px;flex:none}
.ticker__row span{font-family:var(--f-display);font-size:26px;font-weight:400;letter-spacing:-.01em;white-space:nowrap;color:var(--text-2)}
.ticker__row span:nth-of-type(odd){color:var(--text)}
.ticker__row svg{width:22px;height:22px;flex:none;fill:var(--amber);filter:drop-shadow(0 0 6px var(--amber))}
@keyframes ticker{to{transform:translateX(-50%)}}

/* ============================== СЕКЦИИ ============================== */
.sec{position:relative;padding-block:var(--sec-y)}
.sec__head{margin-bottom:72px}
.sec__head h2{max-width:21ch}
.sec__head--split{display:grid;grid-template-columns:1.25fr 1fr;gap:80px;align-items:end}
.sec__head--split .sec__sub{margin:0 0 6px}
.sec__head--center{text-align:center;max-width:900px;margin-inline:auto}
.sec__head--center h2{margin-inline:auto}
.sec__head--center .sec__sub{margin-inline:auto}
.sec__sub{margin-top:24px;font-size:18px;line-height:1.6;color:var(--text-2);max-width:60ch}
.sec__cta{margin-top:64px}
.sec__cta--center{text-align:center}

/* карточки с подсветкой под курсором и объёмным наклоном */
.fx{
  --mx:50%;--my:50%;--rx:0deg;--ry:0deg;
  position:relative;isolation:isolate;
  transition:transform .6s var(--ease-out),border-color .4s,opacity 1s var(--ease-out);
}
/* объёмный наклон включается только под курсором: в покое карточка —
   обычный плоский блок и не заводит собственный 3D-слой */
.fx.is-tilting,.js .fx.reveal.is-in.is-tilting{
  transform:perspective(1100px) rotateX(var(--rx)) rotateY(var(--ry));
  transition:transform .12s linear,border-color .4s,opacity 1s var(--ease-out);
}
.fx::before{
  content:"";position:absolute;inset:0;z-index:-1;border-radius:inherit;pointer-events:none;
  background:radial-gradient(520px circle at var(--mx) var(--my),rgba(255,181,71,.13),transparent 42%);
  opacity:0;transition:opacity .4s;
}
.fx::after{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:radial-gradient(380px circle at var(--mx) var(--my),rgba(255,190,90,.85),rgba(255,190,90,0) 45%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .4s;
}
.fx:hover::before,.fx:hover::after{opacity:1}

/* ============================== УСЛУГИ ============================== */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(280px,auto);gap:20px}
.svc{
  display:flex;flex-direction:column;padding:30px;border-radius:var(--r);text-decoration:none;
  background:linear-gradient(180deg,rgba(22,31,58,.72) 0%,rgba(11,16,32,.72) 100%);
  border:1px solid var(--line);overflow:hidden;
}
.svc--big{grid-column:span 2;grid-row:span 2;padding:38px}
.svc--wide{grid-column:span 2}
.svc__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:auto;padding-bottom:28px}
.svc__ic{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  background:rgba(255,181,71,.08);border:1px solid rgba(255,181,71,.24);
  transition:background .4s,box-shadow .4s,transform .5s var(--ease-spring);
}
.svc__ic svg{width:28px;height:28px;fill:none;stroke:var(--amber);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.svc:hover .svc__ic{background:rgba(255,181,71,.16);box-shadow:0 0 30px -4px rgba(255,181,71,.55);transform:scale(1.06)}
.svc__num{font-family:var(--f-mono);font-size:13px;letter-spacing:.1em;color:var(--text-3)}
.svc h3{margin-bottom:12px}
.svc--big h3{font-size:32px;line-height:1.12;max-width:14ch;margin-bottom:16px}
.svc p{font-size:15.5px;line-height:1.55;color:var(--text-2);margin-bottom:22px}
.svc--big p{font-size:17px;max-width:46ch}
.svc__foot{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-top:auto}
.svc__go{
  flex:none;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-2);transition:background .35s,border-color .35s,transform .45s var(--ease-out);
}
.svc__go svg{width:18px;height:18px;stroke:var(--text);stroke-width:2;fill:none;transition:transform .45s var(--ease-out)}
.svc:hover .svc__go{background:var(--amber);border-color:var(--amber);transform:rotate(-45deg)}
.svc:hover .svc__go svg{stroke:#1b1003}

/* иллюстрация в большой карточке */
.svc__art{display:block;width:100%;height:auto;overflow:visible}
.svc--big .svc__top{padding-bottom:0}
.svc--big .svc__art{margin:auto 0;padding:34px 0 40px}
.art__ground{stroke:var(--line-2);stroke-width:1.5}
.art__pole path{stroke:#aab3cd;stroke-width:3;fill:none;stroke-linecap:round}
.art__pole circle{fill:#e4e8f3}
.art__wire{fill:none;stroke:var(--amber);stroke-width:1.6;opacity:.85;stroke-dasharray:640;stroke-dashoffset:640;transition:stroke-dashoffset 2.2s var(--ease)}
.art__wire--top{stroke:#e4e8f3;opacity:.5}
.svc.is-in .art__wire{stroke-dashoffset:0}
.art__pulse{fill:#fff2d6;filter:drop-shadow(0 0 6px var(--amber)) drop-shadow(0 0 12px var(--amber));offset-rotate:0deg;animation:runWire 3.2s linear infinite;opacity:0}
.art__pulse--2{animation-delay:1.3s;animation-duration:4s}
.svc.is-in .art__pulse{opacity:1}
@keyframes runWire{from{offset-distance:0%}to{offset-distance:100%}}

/* этапы техприсоединения */
.svc__flow{display:flex;gap:0;margin:0 0 24px;padding:0;list-style:none;counter-reset:f}
.svc__flow li{
  position:relative;flex:1;padding:12px 0 0;font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:var(--text-2);
  border-top:2px solid var(--line-2);
}
.svc__flow li::before{
  content:"";position:absolute;left:0;top:-6px;width:10px;height:10px;border-radius:50%;
  background:var(--bg);border:2px solid var(--text-3);transition:all .4s;
}
.svc__flow li:last-child{flex:0 0 auto}
.svc:hover .svc__flow li{border-top-color:var(--amber);color:var(--text)}
.svc:hover .svc__flow li::before{background:var(--amber);border-color:var(--amber);box-shadow:0 0 10px var(--amber)}
.svc__flow li:nth-child(2){transition-delay:.08s}
.svc:hover .svc__flow li:nth-child(1),.svc:hover .svc__flow li:nth-child(1)::before{transition-delay:0s}
.svc:hover .svc__flow li:nth-child(2),.svc:hover .svc__flow li:nth-child(2)::before{transition-delay:.1s}
.svc:hover .svc__flow li:nth-child(3),.svc:hover .svc__flow li:nth-child(3)::before{transition-delay:.2s}
.svc:hover .svc__flow li:nth-child(4),.svc:hover .svc__flow li:nth-child(4)::before{transition-delay:.3s}
.svc:hover .svc__flow li:nth-child(5),.svc:hover .svc__flow li:nth-child(5)::before{transition-delay:.4s}

/* перенос трассы */
.svc__reroute{display:block;width:100%;height:auto;margin:0 0 22px;overflow:visible}
.rr__plot{fill:rgba(255,107,90,.07);stroke:rgba(255,107,90,.5);stroke-dasharray:4 4}
.svc__reroute text{font-family:var(--f-mono);font-size:10px;letter-spacing:.06em;fill:rgba(255,140,120,.8)}
.rr__old{stroke:var(--text-3);stroke-width:2;stroke-dasharray:3 6;fill:none;transition:opacity .5s}
.rr__new{stroke:var(--amber);stroke-width:2.4;fill:none;stroke-dasharray:520;stroke-dashoffset:520;transition:stroke-dashoffset 1.4s var(--ease);filter:drop-shadow(0 0 4px rgba(255,181,71,.6))}
.svc:hover .rr__new,.svc.is-in .rr__new{stroke-dashoffset:0}
.svc:hover .rr__old{opacity:.35}

/* ============================== 3D-СБОРКА ============================== */
.asm{position:relative;background:radial-gradient(1200px 700px at 70% 40%,rgba(64,86,180,.14),transparent 60%),var(--bg)}
.asm::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--line)}
.asm__track{position:relative;height:420vh}
.asm__sticky{
  position:sticky;top:0;height:100vh;min-height:720px;
  max-width:1520px;margin:0 auto;padding:calc(var(--hdr-h) + 28px) var(--gut) 36px;
  display:grid;grid-template-columns:400px minmax(0,1fr);gap:56px;align-items:stretch;
}
.asm__side{display:flex;flex-direction:column;justify-content:center}
.asm__side h2{font-size:36px;line-height:1.12;margin-bottom:20px}
.asm__sub{color:var(--text-2);font-size:16px;margin-bottom:34px}
.asm__steps{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.asm__steps li{
  display:flex;align-items:center;gap:16px;padding:10px 14px;border-radius:12px;
  color:var(--text-3);transition:color .4s,background .4s;
}
.asm__steps b{
  flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--f-mono);font-size:12px;font-weight:500;border:1px solid var(--line-2);
  transition:all .45s var(--ease-out);
}
.asm__steps b svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.asm__steps span{font-size:15.5px;line-height:1.3}
.asm__steps li.is-done{color:var(--text-2)}
.asm__steps li.is-done b{border-color:rgba(255,181,71,.45);color:var(--amber)}
.asm__steps li.is-on{color:var(--text);background:linear-gradient(90deg,rgba(255,181,71,.12),rgba(255,181,71,0))}
.asm__steps li.is-on b{background:var(--amber);border-color:var(--amber);color:#1b1003;box-shadow:0 0 18px rgba(255,181,71,.6)}
.asm__done.is-on span{color:var(--amber)}
.asm__bar{margin-top:26px;height:3px;border-radius:3px;background:var(--line);overflow:hidden}
.asm__bar i{display:block;height:100%;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--grad);box-shadow:0 0 10px var(--amber)}

.asm__figure{margin:0;display:flex;flex-direction:column;min-height:0}
.asm__stage{
  position:relative;flex:1;min-height:0;border-radius:28px;overflow:hidden;cursor:grab;outline-offset:4px;
  background:
    radial-gradient(ellipse 70% 60% at 50% 22%,#1c2654 0%,rgba(28,38,84,0) 70%),
    linear-gradient(180deg,#0e1430 0%,#0a0f1f 62%,#080c19 100%);
  border:1px solid var(--line-2);
  box-shadow:0 40px 100px -40px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.02) inset;
}
.asm__stage:active{cursor:grabbing}
.asm__stage canvas{position:absolute;inset:0;width:100%!important;height:100%!important;display:block}
.asm__hud{
  position:absolute;left:22px;top:20px;z-index:2;margin:0;display:flex;gap:8px;pointer-events:none;
}
.asm__hud span{
  padding:6px 11px;border-radius:999px;background:rgba(6,9,19,.6);border:1px solid var(--line-2);
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;color:var(--text-2);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.asm__hint{
  position:absolute;right:22px;bottom:18px;z-index:2;margin:0;display:flex;align-items:center;gap:8px;pointer-events:none;
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);
  transition:opacity .5s;
}
.asm__hint svg{width:18px;height:18px;fill:none;stroke:var(--amber);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.asm__stage.is-touched .asm__hint{opacity:0}
.asm__figure figcaption{margin-top:14px;font-size:13px;line-height:1.5;color:var(--text-3);max-width:90ch}

/* ============================== КОНФИГУРАТОР ============================== */
.sec--band{
  background:
    radial-gradient(900px 500px at 12% 0%,rgba(255,181,71,.06),transparent 60%),
    linear-gradient(180deg,var(--bg-2),var(--bg));
  border-top:1px solid var(--line);
}
.cfg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:28px;align-items:start}
.cfg__controls{
  display:grid;gap:10px;padding:14px;border-radius:var(--r);
  background:rgba(255,255,255,.02);border:1px solid var(--line);
}
.cfg__group{margin:0;padding:18px 18px 20px;border:0;border-radius:16px;background:rgba(255,255,255,.02);transition:background .3s}
.cfg__group:hover{background:rgba(255,255,255,.035)}
.cfg__legend{
  /* float выводит legend из рамки fieldset внутрь плашки */
  float:left;width:100%;
  display:flex;align-items:center;gap:10px;padding:0;margin-bottom:14px;
  font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);
}
.cfg__legend b{color:var(--amber);font-weight:500}
.cfg__opts{clear:both;display:flex;flex-wrap:wrap;gap:8px}
.cfg__opt{position:relative;cursor:pointer}
.cfg__opt input{position:absolute;opacity:0;pointer-events:none}
.cfg__opt span{
  display:inline-block;padding:11px 18px;border-radius:999px;border:1px solid var(--line-2);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:all .3s var(--ease-out);
}
.cfg__opt:hover span{border-color:rgba(255,181,71,.5);color:var(--text)}
.cfg__opt input:checked + span{
  background:var(--amber);border-color:var(--amber);color:#1b1003;
  box-shadow:0 0 0 4px rgba(255,181,71,.14),0 8px 24px -8px rgba(255,160,60,.7);
}
.cfg__opt input:focus-visible + span{outline:2px solid var(--amber);outline-offset:3px}

.cfg__out{
  position:sticky;top:calc(var(--hdr-h) + 24px);
  padding:28px;border-radius:var(--r);
  background:linear-gradient(180deg,rgba(22,31,58,.75),rgba(11,16,32,.75));
  border:1px solid var(--line-2);
  box-shadow:0 40px 90px -50px rgba(0,0,0,.9);
}
.cfg__label{display:flex;align-items:center;gap:10px;margin:0 0 18px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.cfg__label--works{margin-top:28px}
.cfg__screen{
  padding:22px 20px 24px;border-radius:18px;
  background:
    linear-gradient(rgba(150,168,235,.05) 1px,transparent 1px) 0 0/22px 22px,
    linear-gradient(90deg,rgba(150,168,235,.05) 1px,transparent 1px) 0 0/22px 22px,
    #070b17;
  border:1px solid var(--line);
}
.chain{display:flex;align-items:flex-start;justify-content:space-between;gap:0;min-height:104px}
.chain__el{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;
  animation:chainIn .55s var(--ease-out) both;animation-delay:calc(var(--i) * 70ms);
}
/* провод между элементами, по которому идёт ток */
.chain__el + .chain__el::before{
  content:"";position:absolute;right:calc(50% + 28px);left:calc(-50% + 28px);top:26px;height:2px;
  background:
    linear-gradient(90deg,transparent 0 40%,#fff3d9 50%,transparent 60% 100%) 0 0/200% 100%,
    linear-gradient(90deg,rgba(255,181,71,.5),rgba(255,181,71,.9));
  animation:current 1.6s linear infinite;animation-delay:calc(var(--i) * 120ms);
  box-shadow:0 0 8px rgba(255,181,71,.5);
}
.chain__el svg{
  width:54px;height:54px;padding:13px;border-radius:50%;
  background:#0b1122;border:1.5px solid rgba(255,181,71,.55);
  fill:none;stroke:var(--amber);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
  box-shadow:0 0 22px -6px rgba(255,181,71,.6);
}
.chain__el:first-child svg,.chain__el:last-child svg{background:var(--amber);stroke:#1b1003;border-color:var(--amber)}
.chain__cap{font-family:var(--f-mono);font-size:11px;line-height:1.35;letter-spacing:.02em;color:var(--text-2)}
@keyframes chainIn{from{opacity:0;transform:translateY(10px) scale(.9)}}
@keyframes current{from{background-position:100% 0,0 0}to{background-position:-100% 0,0 0}}

.cfg__works{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.cfg__works li{
  display:flex;gap:14px;padding:14px 16px;border-radius:14px;
  background:rgba(255,255,255,.025);border:1px solid var(--line);
  animation:chainIn .5s var(--ease-out) both;animation-delay:calc(var(--i) * 60ms);
}
.cfg__works svg{flex:none;width:22px;height:22px;margin-top:1px;fill:none;stroke:var(--amber);stroke-width:2}
.cfg__works a{font-weight:600;text-decoration:none;font-size:15.5px}
.cfg__works a:hover{color:var(--amber)}
.cfg__works em{display:block;font-style:normal;font-size:14px;line-height:1.45;color:var(--text-3);margin-top:2px}
.cfg__foot{display:flex;align-items:center;gap:22px;margin-top:24px}
.cfg__foot .btn{flex:none}
.cfg__foot p{margin:0;font-size:13px;line-height:1.45;color:var(--text-3)}

/* ============================== ПОРЯДОК РАБОТЫ ============================== */
.spine{position:relative;max-width:1100px;margin:0 auto}
.spine::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;margin-left:-1px;background:var(--line-2)}
.spine__live{
  position:absolute;left:50%;top:0;width:2px;margin-left:-1px;height:0;
  background:linear-gradient(180deg,rgba(255,181,71,.2),var(--amber));
  box-shadow:0 0 14px var(--amber);
}
.spine__live::after{
  content:"";position:absolute;left:50%;bottom:-7px;width:14px;height:14px;margin-left:-7px;border-radius:50%;
  background:#fff3d9;box-shadow:0 0 0 5px rgba(255,181,71,.25),0 0 24px 4px var(--amber);
}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.step{
  position:relative;width:calc(50% - 64px);padding:30px 32px 28px;border-radius:var(--r);
  background:linear-gradient(180deg,rgba(22,31,58,.6),rgba(11,16,32,.6));border:1px solid var(--line);
  transition:border-color .5s,box-shadow .5s,opacity .6s,transform .8s var(--ease-out);
  opacity:.45;transform:translateY(16px);
}
.step + .step{margin-top:-70px}
.step:nth-child(even){align-self:flex-end}
.step::before{
  content:"";position:absolute;top:40px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--text-3);transition:all .5s;
}
.step::after{content:"";position:absolute;top:47px;width:48px;height:2px;background:var(--line-2);transition:background .5s}
.step:nth-child(odd)::before{right:-72px}
.step:nth-child(odd)::after{right:-56px}
.step:nth-child(even)::before{left:-72px}
.step:nth-child(even)::after{left:-56px}
.step.is-on{opacity:1;transform:none;border-color:rgba(255,181,71,.35);box-shadow:0 30px 70px -40px rgba(255,160,60,.35)}
.step.is-on::before{background:var(--amber);border-color:var(--amber);box-shadow:0 0 0 6px rgba(255,181,71,.16),0 0 18px var(--amber)}
.step.is-on::after{background:var(--amber)}
.step__num{
  display:block;margin-bottom:14px;font-family:var(--f-display);font-size:54px;font-weight:600;line-height:1;letter-spacing:-.03em;
  color:rgba(150,168,235,.2);transition:color .5s;
}
.step.is-on .step__num{color:transparent;background:var(--grad);-webkit-background-clip:text;background-clip:text}
.step h3{margin-bottom:12px}
.step p{font-size:15.5px;line-height:1.55;color:var(--text-2)}
.step__out{margin-top:18px!important;padding-top:16px;border-top:1px dashed var(--line-2);font-size:14.5px!important;color:var(--text)!important}
.step__out b{display:block;margin-bottom:2px;font-family:var(--f-mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}

/* ============================== ОБЪЕКТЫ ============================== */
.sec--objects{border-top:1px solid var(--line)}
.inds{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ind{
  padding:34px 32px 32px;border-radius:var(--r);
  background:linear-gradient(180deg,rgba(22,31,58,.55),rgba(11,16,32,.55));border:1px solid var(--line);
}
.ind svg{
  width:60px;height:60px;padding:14px;margin-bottom:28px;border-radius:18px;
  fill:none;stroke:var(--text);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);
  transition:all .5s var(--ease-out);
}
.ind:hover svg{stroke:var(--amber);border-color:rgba(255,181,71,.45);background:rgba(255,181,71,.1);box-shadow:0 0 30px -6px rgba(255,181,71,.6)}
.ind h3{margin-bottom:12px}
.ind p{font-size:15.5px;line-height:1.55;color:var(--text-2)}

/* ============================== О КОМПАНИИ (светлый лист) ============================== */
.sec--paper{
  --line:rgba(12,17,34,.1);--line-2:rgba(12,17,34,.18);
  color:var(--ink);
  background:
    linear-gradient(rgba(12,17,34,.045) 1px,transparent 1px) 0 0/48px 48px,
    linear-gradient(90deg,rgba(12,17,34,.045) 1px,transparent 1px) 0 0/48px 48px,
    var(--paper);
  border-radius:48px 48px 0 0;
  margin-top:40px;
}
.sec--paper .eyebrow{color:var(--amber-ink)}
.sec--paper .eyebrow::before{background:var(--amber-2);box-shadow:0 0 0 4px rgba(255,138,61,.16)}
.sec--paper .lead{color:var(--ink-2)}
.sec--paper p{color:var(--ink-2)}
.sec--paper .u-accent{background:none;color:var(--amber-ink)}

.about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:80px;align-items:start}
.about__copy h2{margin-bottom:28px}
.about__copy .lead{margin-bottom:18px}
.facts{list-style:none;margin:40px 0 0;padding:0;display:grid;gap:0}
.facts li{padding:22px 0 22px 34px;border-top:1px solid var(--line-2);position:relative}
.facts li::before{
  content:"";position:absolute;left:0;top:29px;width:14px;height:14px;border-radius:50%;
  border:2px solid var(--amber-2);background:var(--paper);box-shadow:0 0 0 4px rgba(255,138,61,.12);
}
.facts b{display:block;font-family:var(--f-display);font-weight:500;font-size:19px;letter-spacing:-.015em;margin-bottom:6px;color:var(--ink)}
.facts p{font-size:15.5px;line-height:1.55;margin:0}

/* макет внутреннего редактора */
.editor{
  position:sticky;top:calc(var(--hdr-h) + 30px);margin:0;border-radius:22px;overflow:hidden;
  background:#0a0f1e;color:var(--text);
  box-shadow:0 50px 100px -40px rgba(12,17,34,.55),0 0 0 1px rgba(12,17,34,.12);
  transform:perspective(1600px) rotateY(-6deg) rotateX(2deg);transition:transform 1s var(--ease-out);
}
.editor:hover{transform:perspective(1600px) rotateY(0) rotateX(0)}
.js .editor.reveal{transform:perspective(1600px) rotateY(-14deg) rotateX(4deg) translateY(40px)}
.js .editor.reveal.is-in{transform:perspective(1600px) rotateY(-6deg) rotateX(2deg)}
.js .editor.reveal.is-in:hover{transform:perspective(1600px) rotateY(0) rotateX(0)}
.editor__bar{display:flex;align-items:center;gap:7px;padding:13px 16px;border-bottom:1px solid rgba(150,168,235,.12);background:#0d1326}
.editor__bar i{width:10px;height:10px;border-radius:50%;background:#2a3350}
.editor__bar i:first-child{background:#ff6b5a}
.editor__bar i:nth-child(2){background:#ffb547}
.editor__bar span{margin-left:12px;font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:#8791ad}
.editor__body{display:grid;grid-template-columns:1fr 176px}
.editor__map{display:block;width:100%;height:auto;background:#0b1122}
.map__blocks rect{fill:#121a33;stroke:#1b2548}
.map__river{fill:none;stroke:#1d3a7a;stroke-width:14;stroke-linecap:round;opacity:.7}
.map__road{stroke:#1a2340;stroke-width:12;fill:none}
.map__route{
  fill:none;stroke:var(--amber);stroke-width:2.4;stroke-linejoin:round;stroke-dasharray:560;stroke-dashoffset:560;
  filter:drop-shadow(0 0 4px rgba(255,181,71,.7));
}
.editor.is-in .map__route{transition:stroke-dashoffset 2.4s var(--ease) .5s;stroke-dashoffset:0}
.map__poles g{opacity:0;transform:scale(.3);transform-box:fill-box;transform-origin:center}
.map__poles circle{fill:#0b1122;stroke:#fff1d6;stroke-width:2.4}
.map__poles rect{fill:var(--amber);stroke:#fff1d6;stroke-width:1.5}
.map__poles text,.map__spans text{font-family:var(--f-mono);font-size:10.5px;fill:#8e98b4;letter-spacing:.04em}
.map__spans text{fill:var(--amber);opacity:0}
.editor.is-in .map__poles g{animation:popPole .6s var(--ease-spring) forwards;animation-delay:calc(.6s + var(--i) * .38s)}
.editor.is-in .map__spans text{animation:fadeIn .5s var(--ease) forwards;animation-delay:calc(.8s + var(--i) * .38s)}
@keyframes popPole{to{opacity:1;transform:none}}
@keyframes fadeIn{to{opacity:1}}
.editor__panel{padding:18px 16px;border-left:1px solid rgba(150,168,235,.12);background:#0d1326;display:flex;flex-direction:column}
.editor__cap{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#6c7693!important;margin-bottom:14px!important}
.editor__panel dl{margin:0;display:grid;gap:12px}
.editor__panel dt{font-size:11.5px;color:#6c7693}
.editor__panel dd{margin:1px 0 0;font-family:var(--f-mono);font-size:13px;color:#eef1fa}
.editor__ok{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;
  font-family:var(--f-mono);font-size:11px;color:var(--amber);background:rgba(255,181,71,.1);border:1px solid rgba(255,181,71,.3);
  opacity:0;
}
.editor__ok::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 8px var(--amber)}
.editor.is-in .editor__ok{animation:fadeIn .6s var(--ease) 3.1s forwards}
.editor figcaption{padding:12px 16px;font-size:12px;color:#6c7693;border-top:1px solid rgba(150,168,235,.12)}

.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:110px 0 0;border-top:1px solid var(--line-2)}
.kpis div{padding:34px 30px 0 0}
.kpis div + div{padding-left:30px;border-left:1px solid var(--line-2)}
.kpis dt{font-family:var(--f-display);font-size:23px;font-weight:500;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
.kpis__n{display:block;margin-bottom:20px;font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--amber-ink)}
.kpis dd{margin:12px 0 0;font-size:15px;line-height:1.5;color:var(--ink-2)}

/* ============================== ЦЕНА ============================== */
#price{background:var(--paper)}
#price::before{
  content:"";position:absolute;inset:0;border-radius:48px 48px 0 0;background:var(--bg);
}
.price{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:80px;align-items:center}
.price__copy h2{margin-bottom:28px}
.price__copy .lead{margin-bottom:18px}
.price__copy p:not(.lead){color:var(--text-2)}
.price__copy .btn{margin-top:22px}

.compare{
  padding:32px;border-radius:var(--r);
  background:linear-gradient(180deg,rgba(22,31,58,.72),rgba(11,16,32,.72));border:1px solid var(--line-2);
}
.compare__cap{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:22px!important}
.cmp{padding:18px 0;border-top:1px solid var(--line)}
.cmp__head{display:flex;align-items:baseline;gap:12px;margin-bottom:14px}
.cmp__head b{font-family:var(--f-display);font-weight:500;font-size:17px}
.cmp__head span{font-size:14px;color:var(--text-3)}
.cmp__row{display:grid;grid-template-columns:70px 1fr;align-items:center;gap:14px;margin-top:8px}
.cmp__row span{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3)}
.cmp__bar{display:block;height:12px;border-radius:6px;background:rgba(255,255,255,.04);position:relative;overflow:hidden}
.cmp__bar::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:calc(var(--w) * 100%);border-radius:6px;
  transform-origin:0 50%;transform:scaleX(0);transition:transform 1.6s var(--ease-out) .3s;
}
.cmp__bar--len::after{background:repeating-linear-gradient(90deg,#aab3cd 0 10px,transparent 10px 14px)}
.cmp__bar--cost::after{background:linear-gradient(90deg,rgba(255,181,71,.5),var(--amber))}
.cmp__bar--hot::after{background:var(--grad);box-shadow:0 0 16px rgba(255,150,60,.6);transition-delay:.7s}
.compare.is-in .cmp__bar::after{transform:scaleX(1)}
.compare h3{font-size:17px;margin:26px 0 16px;padding-top:24px;border-top:1px solid var(--line)}
.factors{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 22px}
.factors li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.45;color:var(--text-2)}
.factors li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:2px;background:var(--amber);transform:rotate(45deg)}
.factors b{color:var(--text);font-weight:600}

/* ============================== ЗАЯВКА ============================== */
.sec--req{
  background:
    radial-gradient(900px 600px at 0% 100%,rgba(255,138,61,.16),transparent 60%),
    radial-gradient(700px 500px at 100% 0%,rgba(80,110,230,.14),transparent 60%),
    var(--bg);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.req{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:80px;align-items:start}
.req__copy h2{margin-bottom:26px}
.req__lead{font-size:18px;color:var(--text-2);margin-bottom:36px}
.req__what h3{font-size:17px;margin-bottom:16px}
.req__what ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.req__what li{display:flex;align-items:center;gap:12px;font-size:15.5px;color:var(--text-2)}
.req__what li::before{content:"";width:18px;height:2px;background:var(--amber);box-shadow:0 0 6px var(--amber);flex:none}
.req__tels{display:flex;flex-direction:column;align-items:flex-start;gap:4px;margin-top:44px}
.req__tels span{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:6px}
.req__tels a{text-decoration:none;font-family:var(--f-display);font-size:26px;font-weight:500;letter-spacing:-.02em;white-space:nowrap;transition:color .3s}
.req__tels a:hover{color:var(--amber)}

.form{
  padding:36px;border-radius:28px;
  background:linear-gradient(180deg,rgba(24,33,62,.72),rgba(12,17,34,.72));
  border:1px solid var(--line-2);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:0 60px 120px -50px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.02) inset;
}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin:0 0 18px;display:flex;flex-direction:column}
.field__label{margin-bottom:9px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-2)}
.field__label i{font-style:normal;color:var(--amber)}
.field input,.field select,.field textarea{
  width:100%;padding:15px 16px;border-radius:14px;
  border:1px solid var(--line-2);background:rgba(3,5,12,.5);color:var(--text);
  font:inherit;font-size:16px;line-height:1.4;
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.field textarea{resize:vertical;min-height:120px}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='m5 8 5 5 5-5' fill='none' stroke='%23ffb547' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:18px;padding-right:44px}
.field select option{background:#0f1629;color:var(--text)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(150,168,235,.35)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);background:rgba(3,5,12,.7);box-shadow:0 0 0 4px rgba(255,181,71,.15)}
.field__err{min-height:0;font-size:13px;color:var(--err);margin-top:6px}
.field__err:empty{display:none}
.field.is-invalid input,.field.is-invalid textarea{border-color:var(--err);box-shadow:0 0 0 4px rgba(255,107,90,.12)}

.check{position:relative;display:flex;gap:12px;align-items:flex-start;margin:4px 0 24px;cursor:pointer;font-size:14px;line-height:1.5;color:var(--text-2)}
.check input{position:absolute;opacity:0;width:22px;height:22px;margin:0}
.check__box{
  flex:none;width:22px;height:22px;border-radius:7px;border:1.5px solid var(--line-2);background:rgba(3,5,12,.5);
  display:grid;place-items:center;transition:all .25s;
}
.check__box::after{content:"";width:10px;height:6px;border-left:2px solid #1b1003;border-bottom:2px solid #1b1003;transform:rotate(-45deg) translate(1px,-1px) scale(0);transition:transform .25s var(--ease-spring)}
.check input:checked + .check__box{background:var(--amber);border-color:var(--amber);box-shadow:0 0 12px rgba(255,181,71,.5)}
.check input:checked + .check__box::after{transform:rotate(-45deg) translate(1px,-1px) scale(1)}
.check input:focus-visible + .check__box{outline:2px solid var(--amber);outline-offset:3px}
.check.is-invalid .check__box{border-color:var(--err)}
.check a{color:var(--text);text-decoration-color:rgba(255,181,71,.6);text-underline-offset:3px}
.check i{font-style:normal;color:var(--amber)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__status{margin:16px 0 0;font-size:14.5px}
.form__status:empty{display:none}
.form__status.is-ok{color:var(--amber)}
.form__status.is-err{color:var(--err)}

/* ============================== ПОДВАЛ ============================== */
.ftr{position:relative;padding:96px 0 36px;background:#04060d;border-top:1px solid var(--line);overflow:hidden}
.ftr__grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:56px}
.ftr__about{margin-top:24px;font-size:14.5px;line-height:1.6;color:var(--text-3);max-width:40ch}
.ftr__col{display:flex;flex-direction:column;gap:11px}
.ftr__col h2{font-family:var(--f-mono);font-size:11.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--text-3);margin-bottom:8px}
.ftr__col a{text-decoration:none;font-size:15px;color:var(--text-2);transition:color .25s}
.ftr__col a:hover{color:var(--amber)}
.ftr__contacts{font-style:normal;display:flex;flex-direction:column;gap:9px}
.ftr__contacts p{margin:0;font-size:14.5px;color:var(--text-3)}
.ftr__contacts .ftr__tel{font-family:var(--f-display);font-size:22px;font-weight:500;color:var(--text)}
.ftr__req{font-family:var(--f-mono);font-size:12px!important}
.ftr__word{
  margin:80px 0 0;text-align:center;line-height:.8;
  font-family:var(--f-display);font-weight:700;font-size:min(22vw,330px);letter-spacing:-.02em;
  color:transparent;
  background:linear-gradient(180deg,rgba(255,181,71,.2) 0%,rgba(150,168,235,.05) 60%,rgba(150,168,235,0) 90%);-webkit-background-clip:text;background-clip:text;
  user-select:none;
}
.ftr__bottom{position:relative;display:grid;grid-template-columns:auto 1fr auto;gap:40px;align-items:start;margin-top:40px;padding-top:28px}
.ftr__bottom::before{content:"";position:absolute;left:var(--gut);right:var(--gut);top:0;height:1px;background:var(--line)}
.ftr__bottom p{margin:0;font-size:13px;color:var(--text-3)}
.ftr__note{max-width:70ch}
.ftr__bottom nav{display:flex;gap:24px}
.ftr__bottom nav a{font-size:13px;color:var(--text-3);text-decoration:none}
.ftr__bottom nav a:hover{color:var(--amber)}

/* ============================== ВНУТРЕННИЕ СТРАНИЦЫ ============================== */
/* Страницы услуг и документ: та же ночь и тот же свет, но без полноэкранной
   3D-сцены — у первого экрана схема услуги в стеклянной панели. */

.btn > svg{width:20px;height:20px;flex:none;transition:transform .35s var(--ease-out)}
.btn:hover > svg{transform:translateX(4px)}

.crumbs{margin:0 0 30px}
.crumbs ol{display:flex;flex-wrap:wrap;margin:0;padding:0;list-style:none;font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--text-3)}
.crumbs li+li::before{content:"/";margin:0 12px;color:var(--line-2)}
.crumbs a{text-decoration:none;color:var(--text-2);transition:color .25s}
.crumbs a:hover{color:var(--amber)}

/* первый экран страницы услуги */
.phero{
  position:relative;overflow:hidden;padding:calc(var(--hdr-h) + 60px) 0 120px;
  background:
    radial-gradient(900px 540px at 76% 40%,rgba(64,86,200,.2),transparent 62%),
    radial-gradient(640px 420px at 72% 78%,rgba(255,150,60,.1),transparent 60%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
/* топосетка, гаснущая к краям */
.phero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(rgba(150,168,235,.07) 1px,transparent 1px) 0 0/48px 48px,
    linear-gradient(90deg,rgba(150,168,235,.07) 1px,transparent 1px) 0 0/48px 48px;
  -webkit-mask-image:radial-gradient(ellipse 60% 75% at 72% 45%,#000 15%,transparent 72%);
  mask-image:radial-gradient(ellipse 60% 75% at 72% 45%,#000 15%,transparent 72%);
}
.phero__grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:72px;align-items:center}
.phero h1{font-size:50px;line-height:1.08;margin-bottom:26px}
.phero .lead{font-size:18.5px;margin-bottom:36px}
.phero__marks{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.phero__marks li{
  display:inline-flex;align-items:center;gap:9px;padding:8px 14px;border-radius:999px;
  border:1px solid var(--line-2);font-size:14px;color:var(--text-2);
}
.phero__marks li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);box-shadow:0 0 8px var(--amber)}
.phero__free{display:flex;align-items:center;gap:10px;margin-top:22px;font-size:15px;color:var(--text-2)}
.phero__free b{font-weight:500}
.phero__free::before{
  content:"";flex:none;width:18px;height:18px;background:var(--amber);filter:drop-shadow(0 0 6px var(--amber));
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M13.5 2 5 13.5h6L10 22l9-12h-6.2z'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M13.5 2 5 13.5h6L10 22l9-12h-6.2z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.phero__art{
  margin:0;padding:40px 64px 32px;border-radius:28px;
  background:linear-gradient(180deg,rgba(22,31,58,.72),rgba(11,16,32,.72));
  border:1px solid var(--line-2);
  box-shadow:0 50px 100px -50px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.02) inset;
}

/* SVG-схемы услуг в ночной палитре: провод под напряжением — янтарный */
.scene{width:100%;height:auto;display:block;overflow:visible}
.scene .ground{stroke:var(--line-2);stroke-width:1.5}
.scene .pole,.scene .wire,.scene .gear,.scene .callout,.scene .trench{fill:none}
.scene .pole *{stroke:#aab3cd;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.scene .pole .stem{fill:#1a2340}
.scene .pole .trav{fill:#6c7693;stroke:#6c7693}
.scene .pole .ins{fill:#e4e8f3;stroke:#e4e8f3;stroke-width:1}
.scene .pole .thin{stroke:#6c7693;stroke-width:1.1}
.scene .pole .base{fill:var(--line-2);stroke:none}
.scene .wire path{stroke:var(--amber);stroke-width:1.8;stroke-linecap:round;filter:drop-shadow(0 0 3px rgba(255,181,71,.55))}
.scene .wire .w2{stroke:#aab3cd;stroke-width:1.4;filter:none;opacity:.75}
.scene .gear *{stroke:#aab3cd;stroke-width:2;stroke-linejoin:round}
.scene .gear .body{fill:#141c35}
.scene .gear .roof{fill:#1f2a4d}
.scene .gear .door{fill:#0b1122}
.scene .gear .live{fill:rgba(255,181,71,.2);stroke:var(--amber)}
.scene .gear .thin{stroke:#6c7693;stroke-width:1.1}
.scene .gear .k{fill:var(--line-2);stroke:none}
.scene .gear text{fill:var(--text-3);font:600 10.5px var(--f-mono);letter-spacing:.08em}
.scene .trench *{stroke:#6c7693;stroke-width:1.4}
.scene .trench .soil{fill:#141c35;stroke:var(--line-2);stroke-width:2}
.scene .trench .sand{fill:#29283a}
.scene .trench .zone{fill:rgba(255,181,71,.1);stroke:var(--amber);stroke-width:1.8;stroke-dasharray:7 6}
.scene .callout path{stroke:rgba(150,168,235,.38);stroke-width:1.2;stroke-dasharray:3 3}
.scene .callout text{fill:var(--text-2);font:500 10px var(--f-mono);letter-spacing:.05em;text-transform:uppercase}
/* подписи с тёмной обводкой под цвет панели: линия под текстом прерывается, как на карте */
.scene .callout text,.scene .gear text{paint-order:stroke fill;stroke:#111830;stroke-width:5px;stroke-linejoin:round}
.scene .wire .draw{stroke-dasharray:1400;stroke-dashoffset:1400}
.phero__art.is-in .scene .wire .draw{animation:draw 2.2s var(--ease-out) .3s forwards}
.phero__art.is-in .scene .wire .draw:nth-child(2){animation-delay:.44s}
.phero__art.is-in .scene .wire .draw:nth-child(3){animation-delay:.58s}
.phero__art.is-in .scene .wire .draw:nth-child(4){animation-delay:.72s}
@keyframes draw{to{stroke-dashoffset:0}}
/* импульс по проводу до оборудования; оборудование «оживает», когда он дошёл */
.scene .pulse{fill:#fff2d6;stroke:none;opacity:0;animation:pulse 6.5s var(--ease) 2.2s infinite;filter:drop-shadow(0 0 6px var(--amber)) drop-shadow(0 0 12px var(--amber))}
.scene .pulse--2{animation-delay:2.75s}
@keyframes pulse{
  0%{offset-distance:0%;opacity:0}
  5%{opacity:1}
  46%{offset-distance:100%;opacity:1}
  52%{offset-distance:100%;opacity:0}
  100%{offset-distance:100%;opacity:0}
}
.scene .energize{opacity:0;animation:energize 6.5s var(--ease-out) 2.2s infinite}
@keyframes energize{0%,44%{opacity:0}50%{opacity:1}86%{opacity:1}100%{opacity:0}}

/* разделы внутренних страниц */
.sec--tint{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line)}
.sec--tint + .sec{border-top:1px solid var(--line)}
.sec__note{margin:36px 0 0;padding-left:18px;border-left:2px solid rgba(255,181,71,.45);font-size:14px;line-height:1.55;color:var(--text-3);max-width:80ch}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{
  display:flex;flex-direction:column;padding:30px 28px;border-radius:var(--r);
  background:linear-gradient(180deg,rgba(22,31,58,.62),rgba(11,16,32,.62));border:1px solid var(--line);
}
.card__num{display:flex;align-items:center;gap:12px;margin:0 0 26px!important;font-family:var(--f-mono);font-size:13px;letter-spacing:.1em;color:var(--amber)}
.card__num::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(255,181,71,.4),transparent)}
.card h3{margin-bottom:12px}
.card p{font-size:15px;line-height:1.55;color:var(--text-2);margin-bottom:22px}
.card .card__use{margin:auto 0 0!important;padding-top:18px;border-top:1px dashed var(--line-2);font-size:14px;color:var(--text)}
.card__use b{display:block;margin-bottom:4px;font-family:var(--f-mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}

.ticks{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.ticks li{
  display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);font-size:14.5px;color:var(--text-2);
}
.ticks li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--amber);transform:rotate(45deg);box-shadow:0 0 8px rgba(255,181,71,.6)}

.appr{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px;align-items:stretch}
.appr__pair{display:grid;gap:20px}
.appr__box{padding:32px;border-radius:var(--r);background:linear-gradient(180deg,rgba(22,31,58,.62),rgba(11,16,32,.62));border:1px solid var(--line)}
.appr__box h3{margin-bottom:12px}
.appr__box p{font-size:15.5px;line-height:1.6;color:var(--text-2)}
.params{
  padding:34px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(255,181,71,.1),rgba(255,181,71,.02) 60%);border:1px solid rgba(255,181,71,.28);
}
.params h3{margin-bottom:20px}
.params ul{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.params li{position:relative;padding-left:22px;font-size:15px;line-height:1.5;color:var(--text-2)}
.params li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:2px;background:var(--amber);transform:rotate(45deg)}
.params b{color:var(--text);font-weight:600}

.checks{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.check-item{grid-column:span 2}
/* неполный последний ряд растягивается на всю ширину */
.check-item:nth-last-child(2):nth-child(3n+1),.check-item:last-child:nth-child(3n+2){grid-column:span 3}
.check-item:last-child:nth-child(3n+1){grid-column:span 6}
.check-item{
  display:flex;gap:16px;align-items:flex-start;padding:24px;border-radius:18px;
  background:rgba(255,255,255,.025);border:1px solid var(--line);transition:border-color .4s,background .4s;
}
.check-item:hover{border-color:rgba(255,181,71,.35);background:rgba(255,181,71,.04)}
.check-item svg{flex:none;width:34px;height:34px;padding:7px;border-radius:50%;background:rgba(255,181,71,.12);fill:none;stroke:var(--amber);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.check-item p{margin:0;font-size:15px;line-height:1.55;color:var(--text-2)}
.check-item b{color:var(--text);font-weight:600}

.feats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;border-top:1px solid var(--line-2)}
.feat{padding:34px 28px 0 0}
.feat + .feat{padding-left:28px;border-left:1px solid var(--line-2)}
.feat dt{font-family:var(--f-display);font-size:22px;font-weight:500;letter-spacing:-.02em;line-height:1.2;margin-bottom:12px}
.feat dt::before{content:"";display:block;width:28px;height:3px;margin-bottom:22px;border-radius:2px;background:var(--grad);box-shadow:0 0 10px var(--amber)}
.feat dd{margin:0;font-size:15px;line-height:1.55;color:var(--text-2)}

.rels{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.rel{
  display:flex;flex-direction:column;padding:28px;border-radius:var(--r);text-decoration:none;
  background:linear-gradient(180deg,rgba(22,31,58,.62),rgba(11,16,32,.62));border:1px solid var(--line);
}
.rel__num{margin:0 0 22px!important;font-family:var(--f-mono);font-size:13px;letter-spacing:.1em;color:var(--text-3)}
.rel h3{font-size:18.5px;margin-bottom:10px}
.rel p{font-size:14.5px;line-height:1.5;color:var(--text-2);margin-bottom:22px}
.rel__more{margin-top:auto;display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--amber)}
.rel__more svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;transition:transform .35s var(--ease-out)}
.rel:hover .rel__more svg{transform:translateX(4px)}

/* документ: светлый лист на ночном фоне */
.doc{
  padding:calc(var(--hdr-h) + 56px) 0 120px;
  background:radial-gradient(900px 500px at 50% 0%,rgba(64,86,200,.16),transparent 65%),var(--bg);
}
.doc .container--narrow{
  max-width:980px;padding:64px 76px 72px;border-radius:32px;
  background:var(--paper);color:var(--ink);
  box-shadow:0 60px 120px -60px rgba(0,0,0,.9);
}
.doc .crumbs ol{color:var(--ink-3)}
.doc .crumbs a{color:var(--ink-2)}
.doc .crumbs li+li::before{color:rgba(12,17,34,.25)}
.doc h1{font-size:40px;line-height:1.12;margin-bottom:14px;color:var(--ink)}
.doc__date{margin-bottom:44px!important;font-family:var(--f-mono);font-size:12.5px;letter-spacing:.08em;color:var(--ink-3)}
.doc h2{font-size:22px;margin:44px 0 14px;color:var(--ink)}
.doc p,.doc li{font-size:16px;line-height:1.65;color:var(--ink-2)}
.doc a{color:var(--amber-ink)}
.doc h2 ~ ul,.doc h2 ~ ol{padding-left:22px;display:grid;gap:8px;margin:0 0 1em}

/* ============================== НЕВЫСОКИЕ И НЕШИРОКИЕ ДЕСКТОПЫ ============================== */
@media (max-width:1480px){
  .hdr__bar{gap:24px}
  .nav{gap:2px}
  .nav a{padding:9px 11px;font-size:14.5px}
}
@media (max-width:1400px){
  .hdr .tel{display:none}
  .meter{width:290px}
}
@media (max-height:900px){
  h1{font-size:46px}
  .hero__copy h1{margin-bottom:22px}
  .hero__copy .lead{font-size:18px;margin-bottom:28px}
  .eyebrow{margin-bottom:18px}
  .hero__inner{padding-top:var(--hdr-h);padding-bottom:120px}
  .hero__foot{bottom:28px}
  .hero__stats dt{font-size:22px}
  .meter{margin-bottom:0}
  .meter__scope{height:70px}

  .asm__sticky{padding-top:calc(var(--hdr-h) + 18px);padding-bottom:22px;gap:40px}
  .asm__side h2{font-size:28px;margin-bottom:14px}
  .asm__sub{font-size:15px;margin-bottom:18px}
  .asm__steps{gap:0}
  .asm__steps li{padding:6px 12px}
  .asm__steps b{width:30px;height:30px}
  .asm__steps span{font-size:14.5px}
  .asm__bar{margin-top:16px}

  .phero{padding-top:calc(var(--hdr-h) + 34px);padding-bottom:90px}
  .phero h1{font-size:42px;margin-bottom:20px}
  .phero .lead{font-size:17px;margin-bottom:28px}
  .crumbs{margin-bottom:22px}
}

/* ============================== МОБИЛЬНОЕ МЕНЮ ============================== */
.burger{
  display:none;flex:none;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  width:46px;height:46px;padding:0;border-radius:50%;cursor:pointer;
  border:1px solid var(--line-2);background:rgba(255,255,255,.04);
  transition:border-color .3s,background .3s;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .35s var(--ease-out),background .4s}
.hdr--open .burger span:first-child{transform:translateY(4px) rotate(45deg)}
.hdr--open .burger span:last-child{transform:translateY(-4px) rotate(-45deg)}
.hdr--light .burger{border-color:rgba(12,17,34,.2)}
.hdr--light .burger span{background:var(--ink)}
.nav__extra{display:none}
html.menu-open{overflow:hidden}

/* ============================== ПЛАНШЕТ И УЗКИЙ ДЕСКТОП ≤ 1180 ============================== */
@media (max-width:1180px){
  :root{--gut:32px}

  /* меню уходит в бургер: панель на весь экран */
  .burger{display:flex}
  .hdr__cta{margin-left:auto}
  .hdr--open{-webkit-backdrop-filter:none!important;backdrop-filter:none!important}
  .nav{
    position:fixed;left:0;right:0;top:0;z-index:-1;height:100vh;height:100dvh;margin:0;
    display:flex;flex-direction:column;gap:0;overflow-y:auto;
    padding:calc(var(--hdr-h) + 20px) var(--gut) 36px;
    background:radial-gradient(600px 400px at 100% 0%,rgba(255,150,60,.08),transparent 60%),var(--bg);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .35s var(--ease),transform .45s var(--ease-out),visibility 0s linear .45s;
  }
  .hdr--open .nav{opacity:1;visibility:visible;transform:none;transition:opacity .35s var(--ease),transform .45s var(--ease-out),visibility 0s}
  .nav > a{
    padding:18px 2px;border-radius:0;border-bottom:1px solid var(--line);
    font-family:var(--f-display);font-size:24px;font-weight:500;letter-spacing:-.01em;color:var(--text);
  }
  .nav > a:hover{background:none;color:var(--amber)}
  .nav > a.is-active::after{left:auto;right:4px;bottom:50%;margin:0 0 -2.5px}
  .nav__extra{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin-top:30px}
  .nav .nav__extra .nav__tel{padding:0;font-family:var(--f-mono);font-size:17px;color:var(--text-2);background:none}
  .nav .nav__extra .nav__tel:hover{color:var(--amber)}
  .nav .nav__extra .btn{align-self:stretch;margin-top:14px;color:#1b1003}

  /* первый экран: без прибора, текст на всю ширину колонки */
  .meter{display:none}
  .hero__inner{grid-template-columns:minmax(0,760px)}
  .hero__stats div{padding-right:24px;margin-right:24px}

  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .svc--big{grid-row:auto}

  .inds{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:1024px){
  .cfg{grid-template-columns:minmax(0,1fr)}
  .cfg__out{position:static}
  .about,.price{grid-template-columns:minmax(0,1fr);gap:56px}
  .editor{position:relative;top:auto}
  .js .editor.reveal,.js .editor.reveal.is-in,.editor{transform:none}
  .asm__sticky{grid-template-columns:320px minmax(0,1fr);gap:32px}
}

/* ============================== ПЛАНШЕТ В ПОРТРЕТЕ И ТЕЛЕФОН ≤ 900 ============================== */
@media (max-width:900px){
  :root{--sec-y:96px}
  h2{font-size:36px}
  .sec__head{margin-bottom:48px}
  .sec__head--split{grid-template-columns:minmax(0,1fr);gap:20px}

  /* первый экран: 3D-сцена — баннер сверху, текст под ней */
  .hero{height:auto;min-height:0;max-height:none;background:var(--bg)}
  .hero__stage{bottom:auto;height:62vh;height:62svh;min-height:420px}
  .hero__veil{
    bottom:auto;height:62vh;height:62svh;min-height:420px;
    background:linear-gradient(180deg,rgba(3,5,12,.6) 0%,rgba(3,5,12,0) 24%,rgba(6,9,19,0) 50%,var(--bg) 100%);
  }
  .hero__inner{display:block;height:auto;padding-top:max(300px,46vh);padding-top:max(300px,46svh);padding-bottom:0}
  .hero__foot{position:relative;left:auto;right:auto;bottom:auto;display:block;padding-top:40px;padding-bottom:56px}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 20px}
  .hero__stats div{padding:0;margin:0;border:0}
  .hero__stats dd{max-width:none}
  .hero__scroll{display:none}

  /* сборка опоры: сцена на весь экран, над ней текущий этап */
  .asm__track{height:340vh}
  .asm__sticky{
    grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);gap:14px;
    height:100vh;height:100svh;min-height:560px;padding:calc(var(--hdr-h) + 12px) var(--gut) 16px;
  }
  .asm__side{justify-content:flex-start}
  .asm__side .eyebrow{margin-bottom:10px}
  .asm__side h2{font-size:24px;margin-bottom:12px}
  .asm__sub,.asm__figure figcaption{display:none}
  .asm__steps{min-height:34px}
  .asm__steps li{display:none;padding:0;background:none!important}
  .asm__steps li.is-on{display:flex}
  .asm__bar{margin-top:12px}
  .asm__stage{border-radius:20px}
  .asm__hud{left:12px;top:12px;flex-wrap:wrap;gap:6px}
  .asm__hud span{padding:5px 9px;font-size:10.5px}
  .asm__hint{right:12px;bottom:12px}

  /* этапы: одна колонка, линия слева */
  .spine{max-width:none}
  .spine::before,.spine__live{left:15px}
  .step{width:auto;margin-left:46px;align-self:stretch!important;padding:24px 22px}
  .step + .step{margin-top:18px}
  .step:nth-child(odd)::before,.step:nth-child(even)::before{left:-39px;right:auto;top:30px}
  .step::after{display:none}
  .step__num{font-size:40px}

  .kpis{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;margin-top:72px}
  .kpis div,.kpis div + div{padding:28px 0 0;border-left:0}

  .req{grid-template-columns:minmax(0,1fr);gap:48px}

  .ftr{padding-top:72px}
  .ftr__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px}
  .ftr__brand{grid-column:1 / -1}
  .ftr__bottom{grid-template-columns:minmax(0,1fr);gap:16px}
  .ftr__bottom nav{flex-wrap:wrap}

  /* страницы услуг */
  .phero{padding:calc(var(--hdr-h) + 32px) 0 80px}
  .phero__grid{grid-template-columns:minmax(0,1fr);gap:44px}
  .phero h1{font-size:38px}
  .appr{grid-template-columns:minmax(0,1fr)}
  .checks{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-item,.check-item:nth-last-child(2):nth-child(3n+1),.check-item:last-child:nth-child(3n+2),.check-item:last-child:nth-child(3n+1){grid-column:auto}
  .feats{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
  .feat,.feat + .feat{padding:28px 0 0;border-left:0}
}

/* ============================== ТЕЛЕФОН ≤ 600 ============================== */
@media (max-width:600px){
  :root{--gut:20px;--hdr-h:64px;--sec-y:76px;--r:20px}
  body{font-size:16px}
  h1{font-size:32px;line-height:1.1}
  h2{font-size:28px;line-height:1.14}
  h3{font-size:19px}
  .lead{font-size:16.5px}
  .sec__sub{font-size:16px;margin-top:18px}
  .sec__head{margin-bottom:36px}
  .eyebrow{font-size:11px;letter-spacing:.14em;margin-bottom:16px}
  .sec__cta{margin-top:40px}
  .btn--lg{padding:17px 26px;font-size:16px}

  .hdr__bar{gap:12px}
  .logo__mark{height:36px}
  .logo__txt b{font-size:18px}
  .logo__txt i{font-size:9.5px}
  .hdr__cta .btn{display:none}
  .nav > a{font-size:21px;padding:15px 2px}

  .hero__copy h1{margin-bottom:18px}
  .hero__copy .lead{font-size:16px;margin-bottom:26px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__free{font-size:14px;align-items:flex-start}
  .hero__stats dt{font-size:19px}
  .hero__stats dd{font-size:13px}

  .ticker{padding:16px 0}
  .ticker__row{gap:20px;padding-right:20px}
  .ticker__row span{font-size:18px}
  .ticker__row svg{width:16px;height:16px}

  .bento{grid-template-columns:minmax(0,1fr);gap:14px;grid-auto-rows:auto}
  .svc--big,.svc--wide{grid-column:auto}
  .svc,.svc--big{padding:24px}
  .svc--big h3{font-size:24px}
  .svc--big p{font-size:15.5px}
  .svc--big .svc__art{padding:20px 0 26px}
  .svc__flow li{font-size:10.5px}
  .svc__top{padding-bottom:22px}

  .asm__side h2{font-size:21px}

  .cfg__controls{padding:8px}
  .cfg__group{padding:14px 14px 16px}
  .cfg__opt span{padding:10px 14px;font-size:14.5px}
  .cfg__out{padding:18px}
  .cfg__screen{padding:18px 16px}
  /* цепочка схемы — сверху вниз */
  .chain{flex-direction:column;align-items:stretch;gap:14px;min-height:0}
  .chain__el{flex-direction:row;align-items:center;text-align:left;gap:14px}
  .chain__el + .chain__el::before{left:22px;right:auto;top:-15px;width:2px;height:16px;background:linear-gradient(180deg,rgba(255,181,71,.5),rgba(255,181,71,.95));animation:none}
  .chain__el svg{width:46px;height:46px;padding:11px}
  .chain__cap{font-size:12px}
  .cfg__foot{flex-direction:column;align-items:stretch;gap:14px}

  .step{padding:22px 18px;margin-left:40px}
  .spine::before,.spine__live{left:12px}
  .step:nth-child(odd)::before,.step:nth-child(even)::before{left:-35px}
  .step__num{font-size:34px}

  .inds{grid-template-columns:minmax(0,1fr);gap:14px}
  .ind{padding:26px 22px}

  .sec--paper{border-radius:28px 28px 0 0;margin-top:0}
  #price::before{border-radius:28px 28px 0 0}
  .facts b{font-size:17px}
  .editor__body{grid-template-columns:minmax(0,1fr)}
  .editor__panel{border-left:0;border-top:1px solid rgba(150,168,235,.12)}
  .editor__panel dl{grid-template-columns:1fr 1fr}
  .editor__ok{margin-top:16px;align-self:flex-start}
  .kpis{grid-template-columns:minmax(0,1fr);margin-top:56px}
  .kpis dt{font-size:20px}

  .compare{padding:22px}
  .cmp__head{flex-direction:column;gap:2px}
  .factors{grid-template-columns:minmax(0,1fr)}

  .form{padding:22px;border-radius:22px}
  .form__row{grid-template-columns:minmax(0,1fr);gap:0}
  .req__lead{font-size:16px}
  .req__tels a{font-size:22px}

  .ftr__grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .ftr__word{margin-top:48px;font-size:17vw}

  /* страницы услуг */
  .phero{padding:calc(var(--hdr-h) + 24px) 0 64px}
  .phero h1{font-size:28px}
  .phero .lead{font-size:16px;margin-bottom:26px}
  .phero__art{padding:22px 14px 18px;border-radius:20px}
  /* на узкой схеме подписи становятся нечитаемо мелкими — оставляем рисунок */
  .phero__art .scene .callout{display:none}
  .crumbs{margin-bottom:20px}
  .crumbs ol{font-size:11px}
  .card{padding:24px 22px}
  .appr__box,.params{padding:24px 22px}
  .checks{grid-template-columns:minmax(0,1fr)}
  .check-item{padding:20px}
  .feats{grid-template-columns:minmax(0,1fr)}
  .rel{padding:24px 22px}

  .doc{padding:calc(var(--hdr-h) + 20px) 0 72px}
  .doc .container--narrow{padding:32px 22px 40px;border-radius:22px;width:calc(100% - 24px)}
  .doc h1{font-size:27px}
  .doc h2{font-size:19px;margin-top:36px}
  .doc p,.doc li{font-size:15.5px}
}

/* ============================== БЕЗ АНИМАЦИЙ ============================== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;transition-delay:0s!important}
  .asm__track{height:auto}
  .asm__sticky{position:relative;height:auto;min-height:0}
  .asm__stage{height:620px;flex:none}
  .ticker__track{animation:none}
}