/* SARMATEX — sarmatech.ru | dark hi-tech 2026 | shared stylesheet */
:root{
  --void:#06080F; --ink:#090D17; --panel:#0E1422; --panel-2:#121A2C;
  --line:rgba(132,162,212,.12); --line-2:rgba(132,162,212,.26);
  --text:#E9EFFB; --muted:#94A6C4; --muted-2:#5D6F8E;
  --cyan:#46D8FF; --blue:#3B82F6; --red:#FF4338;
  --glow:rgba(70,216,255,.40);
  --maxw:1220px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--ink); color:var(--text);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16.5px; line-height:1.62; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--cyan);color:#04121a}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;font-weight:700;line-height:1.04;letter-spacing:-.018em}
.mono{font-family:'JetBrains Mono',monospace}

/* ---------- eyebrow ---------- */
.eyebrow{
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);font-weight:500;
  display:inline-flex;align-items:center;gap:11px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);opacity:.75}
.eyebrow.red{color:var(--red)} .eyebrow.red::before{background:var(--red)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;font-family:'JetBrains Mono',monospace;
  font-size:13px;letter-spacing:.04em;padding:13px 22px;border-radius:7px;
  border:1px solid var(--line-2);color:var(--text);transition:.22s;cursor:pointer;background:transparent;
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-1px)}
.btn-primary{background:var(--cyan);color:#041018;border-color:var(--cyan);font-weight:600}
.btn-primary:hover{background:#6fe6ff;color:#041018;box-shadow:0 8px 30px var(--glow);transform:translateY(-1px)}
.btn .arr{transition:transform .22s} .btn:hover .arr{transform:translateX(3px)}

/* ---------- nav ---------- */
header.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(180deg,rgba(9,13,23,.9),rgba(9,13,23,.45));
  backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.3s;
}
header.nav.scrolled{background:rgba(8,11,20,.95);border-bottom-color:var(--line)}
.navbar{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk';font-weight:700;font-size:20px;letter-spacing:.01em}
.brand .dot{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 12px var(--red);animation:pulse 3.4s ease-in-out infinite}
.brand .reg{color:var(--cyan);font-size:12px;font-family:'JetBrains Mono';vertical-align:super}
.navlinks{display:flex;align-items:center;gap:30px}
.navlinks a{font-family:'JetBrains Mono',monospace;font-size:12.5px;letter-spacing:.04em;color:var(--muted);transition:.2s;position:relative;padding:6px 0}
.navlinks a:hover,.navlinks a.active{color:var(--text)}
.navlinks a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--cyan)}
.navlinks .nav-cta{color:var(--cyan);border:1px solid var(--line-2);border-radius:6px;padding:8px 16px}
.navlinks .nav-cta:hover{border-color:var(--cyan);background:rgba(70,216,255,.07)}
/* dropdown */
.drop{position:relative}
.drop>a{display:inline-flex;align-items:center;gap:6px}
.drop>a::before{display:none}
.drop .menu{
  position:absolute;top:30px;left:-14px;min-width:220px;background:var(--panel-2);
  border:1px solid var(--line);border-radius:10px;padding:8px;opacity:0;visibility:hidden;
  transform:translateY(6px);transition:.2s;box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.drop:hover .menu,.drop:focus-within .menu{opacity:1;visibility:visible;transform:translateY(0)}
.drop .menu a{display:block;padding:9px 12px;border-radius:7px;color:var(--muted);font-size:12.5px}
.drop .menu a:hover{background:rgba(70,216,255,.08);color:var(--text)}
.drop .menu a span{color:var(--muted-2);font-size:11px;display:block;margin-top:1px}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:var(--text);transition:.25s}

/* ---------- sections ---------- */
.section{padding:104px 0;position:relative}
.section.tight{padding:78px 0}
.shead{max-width:760px;margin-bottom:52px}
.shead h2{font-size:clamp(28px,4.3vw,48px);margin:0 0 16px}
.shead p{color:var(--muted);font-size:17.5px}
.rule{height:1px;background:var(--line);border:0}

/* ---------- hero ---------- */
.hero{position:relative;padding:160px 0 86px;overflow:hidden}
.hero-grid{position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(120,150,200,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,150,200,.06) 1px,transparent 1px);
  background-size:66px 66px;mask:radial-gradient(120% 80% at 70% 0,#000 18%,transparent 72%)}
.hero-glow{position:absolute;z-index:0;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,var(--glow),transparent 62%);filter:blur(40px);top:-180px;right:-120px;opacity:.5}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(38px,7vw,82px);line-height:1.0;margin:0 0 22px;letter-spacing:-.025em}
.hero h1 .tint{color:var(--cyan)}
.hero .lead{font-size:clamp(17px,2.2vw,20.5px);color:var(--muted);max-width:620px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-figure{position:relative;z-index:1}

/* ---------- pipeline signature ---------- */
.pipeline{margin-top:64px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0}
.pipeline svg{width:100%;height:auto;display:block}
.pl-stage text{font-family:'JetBrains Mono',monospace;fill:var(--muted);font-size:12px;letter-spacing:.02em}
.pl-stage .pl-num{fill:var(--muted-2);font-size:10.5px}
.pl-node{fill:var(--panel-2);stroke:var(--line-2)}
.pl-line{stroke:var(--line-2);stroke-width:1.4}
.pl-pulse{fill:var(--cyan);filter:drop-shadow(0 0 6px var(--cyan))}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stat{background:var(--ink);padding:30px 26px}
.stat .v{font-family:'Space Grotesk';font-weight:700;font-size:34px;letter-spacing:-.02em;color:var(--text)}
.stat .v em{color:var(--cyan);font-style:normal}
.stat .k{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--muted-2);letter-spacing:.06em;text-transform:uppercase;margin-top:8px}

/* ---------- cards grid ---------- */
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)} .g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:30px;transition:.25s;position:relative;overflow:hidden}
.card:hover{border-color:var(--line-2);transform:translateY(-3px);background:var(--panel-2)}
.card .num{font-family:'JetBrains Mono';font-size:12px;color:var(--cyan);letter-spacing:.06em}
.card h3{font-size:21px;margin:14px 0 10px}
.card p{color:var(--muted);font-size:15.5px}
.card ul{list-style:none;margin-top:14px}
.card ul li{color:var(--muted);font-size:14.5px;padding:7px 0;border-top:1px solid var(--line);display:flex;gap:10px}
.card ul li::before{content:"›";color:var(--cyan)}

/* ---------- brand showcase cards ---------- */
.bcard{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.bcard:hover{border-color:var(--cyan);transform:translateY(-4px)}
.bcard .ph{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.bcard .ph img{width:100%;height:100%;object-fit:cover;transition:.4s;opacity:.92}
.bcard:hover .ph img{transform:scale(1.05);opacity:1}
.bcard .body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.bcard .tag{font-family:'JetBrains Mono';font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.bcard h3{font-size:23px;margin:10px 0 8px}
.bcard p{color:var(--muted);font-size:15px;flex:1}
.bcard .go{margin-top:18px;font-family:'JetBrains Mono';font-size:12.5px;color:var(--text);display:inline-flex;gap:8px;align-items:center}
.bcard:hover .go{color:var(--cyan)}

/* ---------- media row ---------- */
.media{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.media.rev{direction:rtl}.media.rev>*{direction:ltr}
.media>*{min-width:0}
.media .frame{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--panel)}
.media .frame img{width:100%;height:auto;object-fit:cover}
.media h2{font-size:clamp(26px,3.6vw,40px);margin:14px 0 18px}
.media p{color:var(--muted);margin-bottom:14px}
.feat{list-style:none;margin-top:8px}
.feat li{padding:12px 0;border-top:1px solid var(--line);display:flex;gap:13px;color:var(--muted);font-size:15px}
.feat li b{color:var(--text);font-weight:600}
.feat li .ix{font-family:'JetBrains Mono';color:var(--cyan);font-size:12px;flex:0 0 auto;margin-top:3px}

/* ---------- spec table ---------- */
.spec{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.spec th,.spec td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px}
.spec th{font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-2);background:var(--panel)}
.spec td{color:var(--muted)} .spec td:first-child{color:var(--text)}
.spec tr:last-child td{border-bottom:0}
.spec .ok{color:var(--cyan)} .spec .no{color:var(--muted-2)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
.chip{font-family:'JetBrains Mono';font-size:12px;padding:7px 13px;border:1px solid var(--line);border-radius:100px;color:var(--muted);background:var(--panel)}

/* ---------- partners strip ---------- */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;overflow:hidden;white-space:nowrap}
.marquee .row{display:inline-flex;gap:46px;animation:scroll 26s linear infinite}
.marquee b{font-family:'JetBrains Mono';font-size:13px;color:var(--muted-2);letter-spacing:.06em}
.marquee b em{color:var(--muted);font-style:normal}

/* ---------- CTA band ---------- */
.cta{background:linear-gradient(135deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:20px;padding:60px 56px;text-align:center;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;inset:0;background:radial-gradient(70% 120% at 50% -20%,var(--glow),transparent 60%);opacity:.4;pointer-events:none}
.cta h2{font-size:clamp(26px,3.6vw,42px);margin-bottom:14px;position:relative}
.cta p{color:var(--muted);max-width:540px;margin:0 auto 28px;position:relative}
.cta .hero-actions{justify-content:center;position:relative}

/* ---------- form ---------- */
.form{display:grid;gap:16px;max-width:560px}
.field label{display:block;font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-2);margin-bottom:8px}
.field input,.field textarea{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:13px 15px;color:var(--text);font-family:inherit;font-size:15px;transition:.2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(70,216,255,.12)}
.field textarea{resize:vertical;min-height:120px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);background:var(--void);padding:64px 0 38px;margin-top:0}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px}
.fbrand .brand{font-size:24px;margin-bottom:16px}
.fbrand p{color:var(--muted);font-size:14.5px;max-width:300px}
.fcol h4{font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px}
.fcol a,.fcol p{display:block;color:var(--muted);font-size:14.5px;padding:5px 0;transition:.2s}
.fcol a:hover{color:var(--cyan)}
.fcol .red{color:var(--red)}
.fbot{display:flex;justify-content:space-between;align-items:center;margin-top:48px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap;gap:12px}
.fbot span{font-family:'JetBrains Mono';font-size:11.5px;color:var(--muted-2);letter-spacing:.03em}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- page hero (inner) ---------- */
.phero{padding:148px 0 64px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.phero h1{font-size:clamp(34px,6vw,68px);margin:0 0 18px;letter-spacing:-.025em}
.phero .lead{color:var(--muted);font-size:clamp(16px,2vw,19px);max-width:640px}

@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes ggRotCW{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes ggRotCCW{from{transform:rotate(0deg)}to{transform:rotate(-360deg)}}
.gg-rot-cw{animation:ggRotCW 22s linear infinite}
.gg-rot-ccw{animation:ggRotCCW 14s linear infinite}

.hero-visual{position:absolute;top:46%;right:-50px;width:700px;height:700px;transform:translateY(-54%);z-index:1;pointer-events:none}
@media(max-width:1380px){.hero-visual{width:560px;height:560px;right:-70px}}
@media(max-width:1180px){.hero-visual{width:480px;height:480px;right:-90px;opacity:.8}}
@media(max-width:1040px){.hero-visual{width:400px;height:400px;right:-110px;opacity:.6}}
@media(max-width:920px){.hero-visual{display:none}}
@media(prefers-reduced-motion:reduce){.gg-rot-cw,.gg-rot-ccw{animation:none}}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .navlinks{position:fixed;top:68px;left:0;right:0;background:var(--panel-2);flex-direction:column;align-items:flex-start;gap:0;padding:14px 24px 26px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:.3s;max-height:80vh;overflow:auto}
  .navlinks.open{transform:translateY(0)}
  .navlinks a{width:100%;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
  .navlinks .nav-cta{margin-top:10px;justify-content:center;border-radius:7px}
  .drop .menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:transparent;border:0;padding:4px 0 4px 14px;min-width:0}
  .drop .menu a{padding:9px 0;border:0}
  .burger{display:flex}
  .stats{grid-template-columns:repeat(2,1fr)}
  .g3,.g2{grid-template-columns:1fr}
  .media{grid-template-columns:1fr;gap:30px}.media.rev{direction:ltr}
  .fgrid{grid-template-columns:1fr;gap:30px}
  .cta{padding:44px 26px}
  .section{padding:74px 0}.hero{padding:128px 0 60px}
}
@media(max-width:520px){.stats{grid-template-columns:1fr}.wrap{padding:0 20px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}


/* --- блоки для ИИ-агентов: FAQ, глоссарий, экосистема (добавлено 02.09.2026) --- */
.ai-sec{padding:64px 0;border-top:1px solid rgba(128,128,128,.22)}
.ai-sec .ai-wrap{width:min(1180px,92vw);margin:0 auto}
.ai-sec h2{font-size:clamp(24px,3.4vw,38px);line-height:1.12;margin:0 0 10px;letter-spacing:-.02em}
.ai-sec .ai-lead{margin:0 0 30px;opacity:.72;max-width:70ch;font-size:15px;line-height:1.65}
.ai-ey{font-size:11px;letter-spacing:.22em;text-transform:uppercase;opacity:.55;margin:0 0 12px}
.ai-faq{display:grid;gap:0;border-top:1px solid rgba(128,128,128,.22)}
.ai-faq details{border-bottom:1px solid rgba(128,128,128,.22)}
.ai-faq summary{list-style:none;cursor:pointer;padding:18px 40px 18px 0;position:relative;
  font-size:clamp(15px,1.6vw,18px);font-weight:600;line-height:1.4}
.ai-faq summary::-webkit-details-marker{display:none}
.ai-faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;opacity:.55;transition:transform .2s}
.ai-faq details[open] summary::after{content:"–"}
.ai-faq .ai-faq__a{margin:0;padding:0 40px 22px 0;opacity:.78;line-height:1.7;font-size:15px;max-width:78ch}
.ai-gloss{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:0 34px}
.ai-gloss div{padding:15px 0;border-bottom:1px solid rgba(128,128,128,.18)}
.ai-gloss dt{font-weight:600;font-size:15px;margin:0 0 5px}
.ai-gloss dd{margin:0;opacity:.72;font-size:14px;line-height:1.6}
.ai-ring{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:22px}
.ai-ring a{display:block;padding:15px 16px;border:1px solid rgba(128,128,128,.25);border-radius:4px;
  text-decoration:none;color:inherit;transition:border-color .2s,background .2s}
.ai-ring a:hover{border-color:rgba(128,128,128,.55);background:rgba(128,128,128,.07)}
.ai-ring b{display:block;font-size:14px;letter-spacing:.05em;margin-bottom:4px}
.ai-ring span{display:block;font-size:12.5px;opacity:.66;line-height:1.45}
.ai-ring i{display:block;font-size:11px;opacity:.45;font-style:normal;margin-top:6px;letter-spacing:.04em}
.ai-data{margin-top:26px;font-size:13px;opacity:.6;line-height:1.8}
.ai-data a{color:inherit}
@media(max-width:640px){.ai-sec{padding:44px 0}}