/* =========================================================
   Нияз Шарипов — v4
   Палитра: графит + медь (основной акцент) + cyan (сигнал)
   Только CSS3. Без сборки, без внешних зависимостей.
   ========================================================= */

:root{
  --bg:#0B0C10;
  --bg-alt:#08090C;
  --bg-raise:#111319;

  --ink:#EDEBE6;
  --ink2:#B4B8BF;
  --mut:#7A8088;

  --accent:#C9774B;          /* медь — основной акцент */
  --accent-hi:#E08F5F;
  --accent-soft:rgba(201,119,75,.34);
  --sig:#4FD1E8;             /* cyan — сигнал, потоки, данные */
  --sig-soft:rgba(79,209,232,.28);

  --line:rgba(237,235,230,.10);
  --line-2:rgba(237,235,230,.18);

  --fd:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --ft:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --fm:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --ease:cubic-bezier(.16,1,.3,1);
  --wrap:1340px;
  --pad:clamp(20px,5vw,72px);
  --head-h:74px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--head-h) + 18px);
  -webkit-text-size-adjust:100%;
}
body{
  background:var(--bg);
  color:var(--ink);
  font:400 1.02rem/1.72 var(--ft);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,picture{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none}
::selection{background:var(--accent-soft);color:#fff}

:focus-visible{outline:2px solid var(--sig);outline-offset:3px;border-radius:2px}
:focus:not(:focus-visible){outline:none}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}

.mono{
  font-family:var(--fm);font-size:.72rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--mut);
}

.skip{
  position:fixed;left:-9999px;top:12px;z-index:99;
  background:var(--bg-raise);border:1px solid var(--accent);
  padding:12px 20px;font-family:var(--fm);font-size:.78rem;border-radius:3px;
}
.skip:focus{left:12px}

/* ================= ФОНОВЫЕ СЛОИ ================= */
.scene{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  opacity:.5;
}
.scene svg{width:100%;height:100%}
.scene ellipse{fill:none;stroke:rgba(237,235,230,.13);stroke-width:1}
.scene .r2 ellipse{stroke:var(--accent-soft)}
.scene .r4 ellipse{stroke:rgba(79,209,232,.16)}
.scene .pkt{fill:var(--accent);opacity:.85}
.scene .pkt.sig{fill:var(--sig)}
.scene .orb{transform:translate(600px,450px);transition:transform .6s var(--ease)}
@media(min-width:900px){.scene .orb{transform:translate(855px,415px)}}
.scene .ring{transform-box:fill-box;transform-origin:center;animation:spin linear infinite}
.scene .r1{animation-duration:48s}
.scene .r2{animation-duration:70s;animation-direction:reverse}
.scene .r3{animation-duration:96s}
.scene .r4{animation-duration:128s;animation-direction:reverse}
.scene .r5{animation-duration:168s}
@keyframes spin{to{transform:rotate(360deg)}}

.ambient{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(1200px 780px at 76% 6%,rgba(201,119,75,.09),transparent 60%),
    radial-gradient(900px 620px at 8% 92%,rgba(79,209,232,.055),transparent 62%);
}
header,main,footer{position:relative;z-index:2}

.progress{position:fixed;inset:0 0 auto;height:2px;z-index:30;background:transparent}
.progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--accent),var(--sig));
}

/* ================= ШАПКА ================= */
.top{
  position:fixed;inset:0 0 auto;z-index:20;
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
}
.top.is-stuck{
  background:rgba(11,12,16,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-color:var(--line);
}
.top-in{
  max-width:var(--wrap);margin-inline:auto;padding:14px var(--pad);
  min-height:var(--head-h);
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:13px;margin-right:auto}
.brand-m{
  width:38px;height:38px;flex:none;display:grid;place-items:center;
  border:1px solid var(--line-2);border-radius:3px;
  font-family:var(--fm);font-size:.72rem;letter-spacing:.06em;color:var(--accent);
  transition:border-color .3s,color .3s;
}
.brand:hover .brand-m{border-color:var(--accent);color:var(--accent-hi)}
.brand-t{display:flex;flex-direction:column;gap:2px;line-height:1.25}
.brand-t b{font-size:.94rem;font-weight:600;letter-spacing:.005em}
.brand-t i{
  font-style:normal;font-family:var(--fm);font-size:.62rem;
  letter-spacing:.15em;text-transform:uppercase;color:var(--mut);
}

.nav-list{display:flex;gap:clamp(14px,2vw,30px)}
.nav-list a{
  position:relative;display:block;padding:6px 0;
  font-family:var(--fm);font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--mut);
  transition:color .3s;
}
.nav-list a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--accent);transition:width .35s var(--ease);
}
.nav-list a:hover{color:var(--ink)}
.nav-list a:hover::after{width:100%}
.nav-list a.is-active{color:var(--ink)}
.nav-list a.is-active::after{width:100%;background:var(--sig)}

.nav-toggle{display:none}

.cta-top{
  flex:none;
  font-family:var(--fm);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);border:1px solid var(--line-2);border-radius:3px;
  padding:11px 18px;white-space:nowrap;
  transition:border-color .3s,color .3s,background .3s,transform .3s var(--ease);
}
.cta-top:hover{border-color:var(--accent);color:var(--accent-hi);background:rgba(201,119,75,.07);transform:translateY(-1px)}

/* ================= REVEAL ================= */
.js [data-reveal]{
  opacity:0;transform:translateY(26px);
  transition:opacity .9s var(--ease),transform .9s var(--ease);
  transition-delay:var(--d,0ms);
}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ================= КНОПКИ ================= */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:16px 26px;border-radius:3px;border:1px solid var(--line-2);
  font-family:var(--fm);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);white-space:nowrap;
  transition:border-color .32s,color .32s,background .32s,transform .32s var(--ease),box-shadow .32s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  border-color:var(--accent-soft);
  background:linear-gradient(180deg,rgba(201,119,75,.16),rgba(201,119,75,.06));
  color:var(--ink);
}
.btn-primary:hover{
  border-color:var(--accent);color:#fff;
  background:linear-gradient(180deg,rgba(201,119,75,.28),rgba(201,119,75,.12));
  box-shadow:0 12px 34px -18px rgba(201,119,75,.85);
}
.btn-ghost:hover{border-color:var(--sig);color:var(--sig)}
.btn-lg{padding:20px 32px;font-size:.78rem}

/* ================= HERO ================= */
.hero{
  min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding-top:calc(var(--head-h) + 30px);padding-bottom:28px;
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:clamp(28px,5vw,84px);align-items:center;
}
.kicker{color:var(--accent)}
.h1{
  font:700 clamp(2.7rem,7.4vw,6.1rem)/.98 var(--fd);
  text-transform:uppercase;letter-spacing:-.03em;
  margin:18px 0 24px;
}
.h1 span{display:block}
.h1 span+span{margin-left:clamp(20px,5.5vw,96px)}
.h1 .dot{color:var(--accent);font-style:normal}
.hero-role{
  font-size:clamp(1.02rem,1.7vw,1.26rem);font-weight:500;line-height:1.5;
  color:var(--ink);letter-spacing:-.008em;margin-bottom:18px;max-width:36rem;
}
.hero-role b{font-weight:600}
.hero-role .nb{white-space:nowrap}
.hero-role i{font-style:normal;color:var(--accent);padding:0 .18em;font-weight:400}
.lead{max-width:40rem;color:var(--ink2);font-size:clamp(1.02rem,1.5vw,1.14rem)}
.lead b{color:var(--ink);font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:30px}

/* --- портрет: растворяется в фоне --- */
.hero-fig{justify-self:end;width:min(430px,100%)}
.hero-photo{position:relative}
.hero-photo img{
  width:100%;
  filter:brightness(.78) contrast(1.06) saturate(.9);
  /* края растворяются: полосы подобраны под кадр — фигура занимает 11–70% ширины */
  --mx:linear-gradient(90deg,transparent 0,#000 12%,#000 74%,transparent 99%);
  --my:linear-gradient(180deg,transparent 0,#000 9%,#000 52%,transparent 100%);
  -webkit-mask-image:var(--mx),var(--my);
  mask-image:var(--mx),var(--my);
  -webkit-mask-composite:source-in;
  mask-composite:intersect;
}
.hero-photo::before{
  content:"";position:absolute;inset:-14% -10% -6%;z-index:-1;
  background:radial-gradient(58% 48% at 46% 34%,rgba(201,119,75,.20),transparent 70%);
}
.hero-photo::after{
  content:"";position:absolute;inset:auto 0 0;height:42%;pointer-events:none;
  background:linear-gradient(180deg,transparent,var(--bg) 88%);
}
.hero-fig figcaption{
  margin-top:6px;line-height:2;position:relative;z-index:1;
  border-top:1px solid var(--line);padding-top:18px;
}
.hero-fig figcaption span{display:block;color:var(--mut);text-transform:none;letter-spacing:.1em}

/* --- метрики --- */
.facts{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);margin-top:clamp(32px,5vh,58px);
}
.fact{padding:26px 22px 0 0;display:flex;flex-direction:column-reverse;gap:9px}
.fact+.fact{border-left:1px solid var(--line);padding-left:22px}
.fact dd{font:300 clamp(1.9rem,3.4vw,2.9rem)/1.05 var(--fd);letter-spacing:-.02em}
.fact dt{color:var(--mut)}

.hero-systems{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 22px;
}
.hero-systems .mono{text-transform:uppercase}
.hero-systems>.mono:first-child{color:var(--accent);flex:0 1 auto}
.hs-list{color:var(--ink2);letter-spacing:.09em;line-height:1.9}
.hs-list i{font-style:normal;color:var(--mut);padding:0 .12em}

@media(min-width:900px) and (max-height:980px){
  .h1{font-size:clamp(2.7rem,5.6vw,4.6rem);margin:14px 0 18px}
  .hero{padding-top:calc(var(--head-h) + 18px)}
  .hero-role{margin-bottom:14px}
  .hero-cta{margin-top:24px}
  .facts{margin-top:30px}
  .fact{padding-top:20px}
  .hero-systems{margin-top:16px;padding-top:14px}
  .hero-fig{width:min(360px,100%)}
}

@media(min-width:900px) and (max-height:810px){
  .h1{font-size:clamp(2.6rem,4.9vw,3.9rem);margin:10px 0 14px}
  .hero{padding-top:calc(var(--head-h) + 10px);padding-bottom:20px}
  .hero-role{font-size:1.08rem;margin-bottom:12px}
  .lead{font-size:1rem;max-width:44rem}
  .hero-cta{margin-top:20px}
  .hero-cta .btn{padding:13px 22px}
  .facts{margin-top:24px}
  .fact{padding-top:16px}
  .hero-systems{margin-top:14px;padding-top:12px}
  .hero-fig{width:min(320px,100%)}
}

/* ================= СЕКЦИИ ================= */
.sec{padding:clamp(92px,14vh,168px) 0;position:relative}
.sec-alt{background:var(--bg-alt)}

.slab{
  display:flex;align-items:center;gap:15px;
  font-family:var(--fm);font-size:.72rem;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--mut);
}
.slab b{color:var(--accent);font-weight:600}
.slab i{width:38px;height:1px;background:var(--accent);flex:none}
.h2{
  font:600 clamp(1.85rem,4.2vw,3.5rem)/1.12 var(--fd);
  letter-spacing:-.022em;margin-top:26px;max-width:23ch;
}
.h2 em{font-style:normal;color:var(--accent)}
.h2-wide{max-width:30ch}
.sub{margin-top:24px;color:var(--ink2);max-width:46rem}
.fl{
  display:block;font-family:var(--fm);font-size:.68rem;font-weight:600;
  letter-spacing:.15em;text-transform:uppercase;color:var(--accent);margin-bottom:11px;
}

/* ================= 01 ОБО МНЕ ================= */
.about-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(34px,5.5vw,92px);margin-top:58px;align-items:start;
}
.about-text p{color:var(--ink2);margin-bottom:1.35em;max-width:40rem}
.about-text p b{color:var(--ink);font-weight:600}

.creed{margin-top:clamp(46px,6vw,72px);padding-top:30px;border-top:1px solid var(--line)}
.creed-list{margin-top:6px;list-style:none}
.creed-list li{
  padding:22px 0 22px 26px;border-top:1px solid var(--line);position:relative;
}
.creed-list li:first-child{border-top:0}
.creed-list li::before{
  content:"";position:absolute;left:0;top:32px;
  width:10px;height:1px;background:var(--accent);
}
.creed-list p{
  font:500 clamp(1.08rem,1.9vw,1.42rem)/1.45 var(--fd);
  letter-spacing:-.015em;color:var(--ink);max-width:44rem;
}
.creed-list .mono{display:block;margin-top:9px;color:var(--mut)}

.about-fig{margin-top:6px}
.pframe{position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:3px}
.pframe::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  border:1px solid var(--line-2);border-radius:3px;
}
.pframe::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(201,119,75,.10),transparent 42%,rgba(11,12,16,.55));
}
.pframe img{width:100%;height:100%;object-fit:cover;object-position:50% 22%;filter:brightness(.86) contrast(1.04) saturate(.92)}
.about-fig{position:relative}
.about-fig::before{
  content:"";position:absolute;inset:0;transform:translate(16px,16px);
  border:1px solid var(--line);border-radius:3px;z-index:-1;
}

.side-block{padding-top:24px;margin-top:24px;border-top:1px solid var(--line)}
.side-block p{font-size:.95rem;color:var(--ink2)}
.tagline{font-family:var(--fm);font-size:.76rem;letter-spacing:.06em;line-height:2.1;color:var(--ink2)}

/* --- награды и признание --- */
.awards{margin-top:clamp(46px,6vw,72px);padding-top:30px;border-top:1px solid var(--line)}
.award-list{margin-top:22px}
.award{
  display:grid;grid-template-columns:minmax(150px,220px) minmax(0,1fr);
  gap:24px;padding:22px 0;border-top:1px solid var(--line);align-items:baseline;
}
.award:first-child{border-top:0;padding-top:6px}
.award dt{color:var(--mut);line-height:1.9}
.award dd b{display:block;font-weight:600;font-size:1rem;line-height:1.5;color:var(--ink)}
.award dd span{display:block;margin-top:7px;color:var(--ink2);font-size:.94rem;max-width:52rem}

/* ================= 02 ОПЫТ ================= */
.xp{margin-top:62px;max-width:1040px;position:relative;padding-left:54px}
.xp::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:var(--line)}
.xp-item{
  position:relative;display:grid;grid-template-columns:200px minmax(0,1fr);
  gap:30px;padding:32px 0;border-top:1px solid var(--line);
}
.xp-item::before{
  content:"";position:absolute;left:-50px;top:40px;width:9px;height:9px;border-radius:50%;
  background:var(--bg);border:1px solid var(--accent);
}
.xp-item:first-child{border-top:0;padding-top:6px}
.xp-item:first-child::before{top:14px}
.xp-now::before{background:var(--accent);box-shadow:0 0 0 5px rgba(201,119,75,.14)}
.when{line-height:2}
.when b{display:block;color:var(--ink2);font-weight:600;font-size:.8rem;letter-spacing:.09em}
.xp-item h3{font:600 1.1rem/1.45 var(--ft)}
.xp-item h3 small{
  display:block;font-family:var(--fm);font-size:.66rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:6px;
}
.xp-item div>p{margin-top:9px;color:var(--ink2);font-size:.96rem;max-width:38rem}
.pn{color:var(--sig)!important;font-size:.66rem!important;letter-spacing:.12em}

.par{position:relative;margin:34px 0 34px 22px;border-left:1px solid var(--line);padding-left:42px}
.par::before,.par::after{content:"";position:absolute;left:-22px;width:22px;height:1px;background:var(--line)}
.par::before{top:0}
.par::after{bottom:0}
.par .xp-item::before{left:-46.5px}
.par-cap{margin:32px 0 0 22px;color:var(--sig)}

/* ================= 03 ПРОЕКТЫ (аккордеон) ================= */
.sys-list{margin-top:54px;border-bottom:1px solid var(--line)}
.sys{border-top:1px solid var(--line)}
.sys h3{font:inherit}
.sys-head{
  width:100%;display:grid;grid-template-columns:64px minmax(0,1fr) 32px;
  align-items:center;gap:20px;padding:28px 0;text-align:left;
}
.sys-i{color:var(--accent)}
.sys-t{
  font:500 clamp(1.1rem,2.2vw,1.62rem)/1.28 var(--fd);
  letter-spacing:-.015em;transition:color .3s;
}
.sys-head:hover .sys-t{color:var(--accent-hi)}
.sys-ic{position:relative;width:28px;height:28px;justify-self:end}
.sys-ic::before,.sys-ic::after{
  content:"";position:absolute;background:var(--mut);
  transition:transform .45s var(--ease),background .3s;
}
.sys-ic::before{left:0;right:0;top:50%;height:1px}
.sys-ic::after{top:0;bottom:0;left:50%;width:1px}
.sys.is-open .sys-ic::after{transform:scaleY(0)}
.sys.is-open .sys-ic::before,.sys.is-open .sys-ic::after{background:var(--accent)}
.sys.is-open .sys-t{color:var(--accent)}

.sys-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .55s var(--ease)}
.sys.is-open .sys-panel{grid-template-rows:1fr}
.sys-panel>div{overflow:hidden}
.sys-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;padding:4px 0 16px 84px}
.sys-cols p{font-size:.94rem;color:var(--ink2)}
.sys-tags{padding:0 0 34px 84px;letter-spacing:.1em}
.sys-tags b{color:var(--ink2);font-weight:400;margin-right:16px}

/* ================= 04 AI ================= */
.sec-ai{background:var(--bg-alt);overflow:hidden}
.sec-ai::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(237,235,230,.026) 0 1px,transparent 1px 116px);
}
.sec-ai>.wrap{position:relative}
.flow{margin-top:58px;max-width:960px}
.stage{
  position:relative;display:grid;grid-template-columns:230px minmax(0,1fr);
  gap:34px;padding:32px 0 32px 42px;
}
.stage+.stage{border-top:1px solid var(--line)}
.stage::after{
  content:"";position:absolute;left:0;top:42px;width:9px;height:9px;border-radius:50%;
  border:1px solid var(--sig);background:var(--bg-alt);
}
.stage+.stage::before{
  content:"";position:absolute;left:4px;top:-6px;height:48px;width:1px;
  background:repeating-linear-gradient(180deg,var(--sig) 0 4px,transparent 4px 12px);
  opacity:.7;animation:sigflow 1.15s linear infinite;
}
@keyframes sigflow{to{background-position:0 12px}}
.st-i{display:block;margin-bottom:9px;letter-spacing:.15em}
.st-n{font:500 1.12rem var(--fd);letter-spacing:-.01em}
.stage.is-hot::after{background:var(--sig);box-shadow:0 0 0 5px rgba(79,209,232,.14)}
.stage.is-hot .st-n{color:var(--sig)}
.st-d p{color:var(--ink2);font-size:.97rem}
.st-d .m{
  margin-top:11px;color:var(--mut);font-size:.72rem;
  letter-spacing:.08em;line-height:2;text-transform:none;
}

/* ================= 05 ПРОДУКТЫ ================= */
.pm{display:flex;justify-content:space-between;gap:18px}
.lead-prod h3,.wide-prod h3,.prod h3{
  font:600 clamp(1.5rem,2.9vw,2.3rem)/1.15 var(--fd);
  letter-spacing:-.022em;margin:13px 0 15px;
}
.lead-prod .dot,.wide-prod .dot,.prod .dot{color:var(--accent)}
.ptags{margin-top:17px;letter-spacing:.1em;text-transform:none}
.ptags b{color:var(--accent);font-weight:500;margin-right:14px;text-transform:uppercase;letter-spacing:.12em}

.lead-prod{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.72fr);
  gap:clamp(30px,5vw,76px);align-items:center;
  margin-top:58px;padding:clamp(28px,4vw,52px);
  border:1px solid var(--line);border-radius:5px;
  background:
    linear-gradient(140deg,rgba(201,119,75,.075),transparent 46%),
    var(--bg-raise);
}
.lead-prod .lp{color:var(--ink2);max-width:38rem}
.lead-prod .lp b{color:var(--ink);font-weight:600}
.lead-prod .btn{margin-top:26px}

.shot{position:relative;border-radius:5px;overflow:hidden;border:1px solid var(--line-2)}
.shot img{width:100%}
.shot-phone{
  justify-self:center;width:min(268px,100%);
  border-radius:16px;box-shadow:0 34px 70px -34px rgba(0,0,0,.95);
  transition:transform .55s var(--ease);
}
.lead-prod:hover .shot-phone{transform:translateY(-6px) rotate(-.6deg)}

.wide-prod{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:clamp(28px,4.5vw,64px);align-items:center;
  margin-top:clamp(34px,5vw,64px);padding-top:clamp(34px,5vw,56px);
  border-top:1px solid var(--line);
}
.wide-prod p{color:var(--ink2);max-width:36rem}
.shot-wide{box-shadow:0 30px 62px -34px rgba(0,0,0,.9);transition:transform .55s var(--ease)}
.wide-prod:hover .shot-wide{transform:translateY(-5px)}

.pgrid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:clamp(28px,4.5vw,64px);margin-top:clamp(34px,5vw,58px);
}
.prod{border-top:1px solid var(--line);padding:34px 0 12px}
.prod p{color:var(--ink2);font-size:.97rem;max-width:34rem}
.prod-wide{grid-column:1/-1}

/* ================= 06 ТЕХНОЛОГИИ ================= */
.tech-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(28px,4vw,58px);margin-top:56px;
}
.tech-col{border-top:1px solid var(--line);padding-top:26px}
.tech-why{color:var(--ink2);font-size:.95rem;margin-bottom:20px;max-width:26rem}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chips li{
  font-family:var(--fm);font-size:.72rem;letter-spacing:.06em;color:var(--ink2);
  border:1px solid var(--line);border-radius:3px;padding:7px 12px;
  background:rgba(237,235,230,.022);
  transition:border-color .3s,color .3s;
}
.chips li:hover{border-color:var(--sig-soft);color:var(--ink)}

/* ================= 07 BEYOND (светлая) ================= */
.sec-light{
  background:#E9E6DF;color:#191A1D;
  --ink:#191A1D;--ink2:#45474C;--mut:#626468;
  --accent:#955535;--accent-hi:#7E4529;
  --line:rgba(25,26,29,.16);--line-2:rgba(25,26,29,.28);
}
.bw-rows{margin-top:52px;border-bottom:1px solid var(--line)}
.bw-row{
  display:grid;grid-template-columns:minmax(140px,280px) minmax(0,1fr);gap:32px;
  padding:28px 0;border-top:1px solid var(--line);align-items:baseline;
}
.bw-row .mono{color:var(--accent)}
.bw-row .w{font:600 clamp(1.1rem,2.1vw,1.55rem)/1.7 var(--ft);letter-spacing:-.015em}
.bw-row .w i{font-style:normal;color:var(--accent);padding:0 .12em;font-weight:400}
.bw-link{margin-top:12px}
.bw-link a{
  display:inline-block;font-family:var(--fm);font-size:.74rem;letter-spacing:.08em;
  color:var(--accent);border-bottom:1px solid transparent;padding:5px 0 4px;
  transition:border-color .3s,color .3s;
}
.bw-link a:hover{border-bottom-color:var(--accent);color:var(--accent-hi)}
.bw-fact{margin-top:8px;color:var(--ink2);font-size:.94rem;max-width:44rem}
.bw-note{display:grid;grid-template-columns:minmax(140px,280px) minmax(0,1fr);gap:32px;margin-top:42px}
.bw-note .mono{color:var(--accent)}
.bw-note p:last-child{color:var(--ink2);font-size:.95rem;max-width:40rem}

/* ================= 08 КОНТАКТ ================= */
.sec-contact{padding-bottom:56px}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin-top:46px}
.channels{margin-top:70px;border-top:1px solid var(--line)}
.ch-cap{padding:22px 0 6px;color:var(--mut)}
.ch{
  display:grid;grid-template-columns:minmax(160px,240px) minmax(0,1fr) auto;
  gap:26px;align-items:baseline;padding:22px 0;
  border-top:1px solid var(--line);transition:background .3s,padding-left .35s var(--ease);
}
.ch:hover{background:rgba(237,235,230,.022);padding-left:12px}
.ch-h{font-size:.84rem;letter-spacing:.06em;color:var(--ink);text-transform:none}
.ch:hover .ch-h{color:var(--accent)}
.ch-d{color:var(--ink2);font-size:.95rem}
.ch-go{transition:color .3s}
.ch:hover .ch-go{color:var(--accent)}

/* ================= ПОДВАЛ ================= */
footer{border-top:1px solid var(--line);padding:30px 0}
.f-in{display:flex;flex-wrap:wrap;gap:12px 40px;justify-content:space-between;align-items:center}
.f-name{color:var(--ink2)}
.f-motto{color:var(--accent)}
.f-up{display:inline-block;padding:6px 2px;transition:color .3s}
.f-up:hover{color:var(--ink)}

/* =========================================================
   АДАПТИВ
   ========================================================= */
@media(max-width:1180px){
  .lead-prod{grid-template-columns:minmax(0,1fr) minmax(0,.62fr)}
  .xp-item{grid-template-columns:170px minmax(0,1fr)}
}

@media(max-width:1024px){
  .sys-cols{grid-template-columns:repeat(2,1fr);padding-left:64px}
  .sys-tags{padding-left:64px}
  .tech-grid{grid-template-columns:1fr;gap:0}
  .tech-col{margin-top:26px}
  .tech-col:first-child{margin-top:0}
  .wide-prod{grid-template-columns:1fr}
  .wide-prod .shot-wide{order:-1}
}

/* --- мобильное меню --- */
@media(max-width:900px){
  .cta-top{display:none}
  .nav{margin-left:auto}
  .nav-toggle{
    display:inline-flex;align-items:center;gap:10px;
    border:1px solid var(--line-2);border-radius:3px;padding:10px 14px;min-height:44px;
    font-family:var(--fm);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;
    color:var(--ink2);transition:border-color .3s,color .3s;
  }
  .nav-toggle:hover{border-color:var(--accent);color:var(--ink)}
  .nav-burger{position:relative;width:18px;height:12px;flex:none}
  .nav-burger i{
    position:absolute;left:0;right:0;height:1.5px;background:currentColor;border-radius:2px;
    transition:transform .3s var(--ease),opacity .2s;
  }
  .nav-burger i:nth-child(1){top:0}
  .nav-burger i:nth-child(2){top:5.25px}
  .nav-burger i:nth-child(3){top:10.5px}
  .nav.is-open .nav-burger i:nth-child(1){transform:translateY(5.25px) rotate(45deg)}
  .nav.is-open .nav-burger i:nth-child(2){opacity:0}
  .nav.is-open .nav-burger i:nth-child(3){transform:translateY(-5.25px) rotate(-45deg)}

  .nav-list{
    position:absolute;left:0;right:0;top:100%;display:none;
    flex-direction:column;gap:0;
    background:rgba(9,10,14,.985);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:6px var(--pad) 18px;
    box-shadow:0 28px 46px -30px rgba(0,0,0,.95);
  }
  .nav.is-open .nav-list{display:flex}
  .nav-list li{border-bottom:1px solid var(--line)}
  .nav-list li:last-child{border-bottom:0}
  .nav-list a{padding:16px 2px;font-size:.82rem;letter-spacing:.1em;min-height:44px}
  .nav-list a::after{display:none}
  .nav-list a.is-active{color:var(--sig)}
}

@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-fig{justify-self:start;width:min(360px,88%);order:-1}
  .hero-photo img{
    --mx:linear-gradient(90deg,transparent 0,#000 9%,#000 78%,transparent 99%);
    --my:linear-gradient(180deg,transparent 0,#000 7%,#000 58%,transparent 100%);
  }
  .h1 span+span{margin-left:0}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .about-fig{max-width:400px}
  .lead-prod{grid-template-columns:1fr;gap:34px}
  .lead-prod .shot-phone{order:-1;justify-self:start}
  .sys-cols{grid-template-columns:1fr;gap:24px;padding-left:0}
  .sys-tags{padding-left:0}
  .sys-head{grid-template-columns:48px minmax(0,1fr) 28px;gap:14px}
  .stage{grid-template-columns:1fr;gap:10px}
  .xp-item{grid-template-columns:1fr;gap:10px}
  .bw-row,.bw-note{grid-template-columns:minmax(0,1fr);gap:8px}
  .award{grid-template-columns:minmax(0,1fr);gap:8px}
  .ch{grid-template-columns:1fr;gap:5px}
  .ch:hover{padding-left:0}
  .pgrid{grid-template-columns:1fr}
  .facts{grid-template-columns:repeat(2,1fr)}
  .fact{padding-right:16px}
  .fact:nth-child(3){border-left:0;padding-left:0}
  .fact:nth-child(n+3){border-top:1px solid var(--line);margin-top:22px;padding-top:22px}
  .f-in{justify-content:flex-start;gap:10px 26px}
}

/* На мобильных орбиты остаются, но не вращаются: при 48–168 с движение почти
   незаметно, а непрерывная перерисовка полноэкранного SVG стоит батареи. */
@media(max-width:860px){
  .scene .ring{animation:none}
}

@media(max-width:560px){
  .scene{opacity:.34}
  .brand-t i{display:none}
  .hero{padding-top:calc(var(--head-h) + 26px)}
  .hero-cta{gap:12px}
  .hero-cta .btn{width:100%;justify-content:center}
  .xp{padding-left:30px}
  .xp-item::before{left:-26.5px}
  .par{margin-left:6px;padding-left:26px}
  .par::before,.par::after{left:-6px;width:6px}
  .par .xp-item::before{left:-30.5px}
  .par-cap{margin-left:6px}
  .lead-prod{padding:24px 20px}
  .shot-phone{width:min(240px,100%)}
  .facts{grid-template-columns:1fr}
  .fact,.fact+.fact{border-left:0;padding-left:0;padding-right:0}
  .fact+.fact{border-top:1px solid var(--line);margin-top:20px;padding-top:20px}
  .fact:nth-child(n+3){margin-top:20px;padding-top:20px}
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .scene{display:none}
  .js [data-reveal]{opacity:1;transform:none;transition:none}
  .stage+.stage::before{animation:none}
  .scene .ring{animation:none}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
}