@font-face{font-family:Acrom;src:url(../fonts/Acrom-Light.ttf) format("truetype");font-weight:300;font-display:swap}
@font-face{font-family:Acrom;src:url(../fonts/Acrom-Medium.ttf) format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:Acrom;src:url(../fonts/Acrom-Bold.ttf) format("truetype");font-weight:700;font-display:swap}

:root{
  --red:#ee1a34;
  --red-deep:#c50f27;
  --red-soft:#fdecee;
  --ink:#141414;
  --ink-2:#212121;
  --text:#2b2b2b;
  --muted:#6b6b6b;
  --line:#e7e7e7;
  --soft:#f6f6f6;
  --white:#fff;
  --wa:#25d366;
  --r-lg:28px;
  --r-md:18px;
  --r-sm:12px;
  --wrap:1240px;
  --shadow:0 20px 60px -20px rgba(20,20,20,.25);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--text);font-family:Acrom,"Helvetica Neue",Arial,sans-serif;font-weight:300;font-size:17px;line-height:1.6;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{overflow-wrap:break-word;font-weight:700;color:var(--ink);line-height:1.12;margin:0;letter-spacing:-.01em}
p{margin:0}
b,strong{font-weight:700}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
section{scroll-margin-top:84px}
.sec{padding:110px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-weight:500;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}
.eyebrow::before{content:"";width:28px;height:2px;background:currentColor}
.h2{font-size:clamp(24px,min(7.4vw,4vw + 12px),48px);margin-top:14px;text-transform:uppercase}
.lead{font-size:clamp(17px,1.4vw,19px);color:var(--muted);max-width:640px;margin-top:18px}
.red{color:var(--red)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:58px;padding:0 28px;border-radius:999px;font-weight:700;font-size:16px;border:2px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s;white-space:nowrap;font-family:inherit}
.btn svg{width:22px;height:22px;flex:none}
.btn:hover{transform:translateY(-2px)}
.btn-red{background:var(--red);color:#fff;box-shadow:0 14px 30px -10px rgba(238,26,52,.6)}
.btn-red:hover{background:var(--red-deep)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.14)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-line{border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{background:#f1f1f1}

/* Header */
.hdr{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .3s,box-shadow .3s}
.hdr.scrolled{background:rgba(20,20,20,.92);backdrop-filter:blur(12px);box-shadow:0 8px 30px rgba(0,0,0,.2)}
.hdr-in{height:78px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:12px;color:#fff;flex:none}
.logo img{height:44px;width:auto}
.logo span{font-size:12px;line-height:1.3;opacity:.75;font-weight:300;max-width:170px;border-left:1px solid rgba(255,255,255,.25);padding-left:12px}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{color:rgba(255,255,255,.8);font-weight:500;font-size:15px;transition:color .2s}
.nav a:hover{color:#fff}
.hdr-cta{display:flex;align-items:center;gap:18px}
.hdr-phone{color:#fff;font-weight:700;font-size:16px;white-space:nowrap}
.hdr .btn{height:46px;padding:0 20px;font-size:15px}

/* Hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#fff;background:#0d0d0d;overflow:hidden;padding:130px 0 90px}
.hero-bg{position:absolute;inset:0;background:url(../img/steel.webp) center/cover no-repeat;transform:scale(1.04)}
.hero::before{content:"";position:absolute;inset:0;z-index:1;background:
  linear-gradient(90deg,rgba(10,10,10,.96) 0%,rgba(10,10,10,.86) 38%,rgba(10,10,10,.35) 70%,rgba(10,10,10,.55) 100%),
  linear-gradient(0deg,rgba(10,10,10,.9) 0%,rgba(10,10,10,0) 40%)}
.hero::after{content:"";position:absolute;z-index:1;width:620px;height:620px;left:-220px;bottom:-320px;background:radial-gradient(circle,rgba(238,26,52,.45),transparent 65%);filter:blur(10px)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:56px;align-items:center;width:100%}
.hero .eyebrow{color:#fff;opacity:.9}
.hero .eyebrow::before{background:var(--red)}
.hero h1{color:#fff;font-size:clamp(36px,5.3vw,70px);text-transform:uppercase;margin-top:22px;letter-spacing:-.015em}
.hero h1 em{font-style:normal;color:var(--red)}
.hero-sub{font-size:clamp(17px,1.5vw,20px);color:rgba(255,255,255,.78);max-width:620px;margin-top:24px}
.hero-checks{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:12px}
.hero-checks li{display:flex;gap:12px;align-items:flex-start;font-weight:500;color:#fff}
.hero-checks li::before{content:"";flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/14px no-repeat}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-note{margin-top:16px;font-size:14px;color:rgba(255,255,255,.55)}

/* Certificate mock */
.cert-stage{position:relative;justify-self:end;width:100%;max-width:400px}
.cert{position:relative;min-height:265px;border-radius:18px;padding:34px 26px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;
  background:linear-gradient(145deg,#233a8c 0%,#1a2c6e 55%,#13205a 100%);
  box-shadow:0 40px 80px -20px rgba(0,0,0,.7),inset 0 0 0 1px rgba(255,255,255,.08),inset 0 2px 0 rgba(255,255,255,.12);
  transform:rotate(-5deg);color:#f4cf3a;font-weight:700;text-transform:uppercase;letter-spacing:.02em}
.cert::before{content:"";position:absolute;inset:10px;border-radius:12px;border:1px solid rgba(244,207,58,.25)}
.cert::after{content:"";position:absolute;inset:0;border-radius:18px;background:repeating-linear-gradient(45deg,rgba(255,255,255,.02) 0 2px,transparent 2px 5px);pointer-events:none}
.cert-kz{font-size:14px;line-height:1.35}
.cert-ru{font-size:14.5px;line-height:1.35;margin-top:14px}
.cert-emb{width:46px;height:46px;border-radius:50%;margin-bottom:14px;border:2px solid rgba(244,207,58,.6);display:grid;place-items:center;font-size:10px}
.cert-emb svg{width:26px;height:26px}
.cert-badge{position:absolute;right:-8px;bottom:-44px;background:#fff;color:var(--ink);border-radius:16px;padding:14px 18px;display:flex;align-items:center;gap:12px;box-shadow:var(--shadow);transform:rotate(2deg)}
.cert-badge i{width:40px;height:40px;border-radius:12px;background:var(--red);display:grid;place-items:center;flex:none}
.cert-badge i svg{width:22px;height:22px}
.cert-badge b{display:block;font-size:15px;line-height:1.2}
.cert-badge small{font-size:12.5px;color:var(--muted)}
.cert-proto{position:absolute;left:-26px;top:-34px;width:62%;background:#fff;border-radius:12px;padding:16px 16px 18px;box-shadow:var(--shadow);transform:rotate(4deg);color:var(--ink)}
.cert-proto b{font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.cert-proto span{display:block;height:6px;border-radius:3px;background:#ececec;margin-top:8px}
.cert-proto span:nth-child(3){width:80%}.cert-proto span:nth-child(4){width:60%}
.cert-proto em{display:inline-block;margin-top:12px;font-style:normal;font-size:11px;font-weight:700;color:var(--red);border:1.5px solid var(--red);border-radius:6px;padding:2px 8px;transform:rotate(-6deg)}

/* Stats band */
.stats{position:relative;z-index:3;margin-top:-60px}
.stats-in{background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px 30px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(28px,3vw,40px);color:var(--red);line-height:1}
.stat span{display:block;margin-top:10px;font-size:15px;color:var(--muted);line-height:1.4}

/* Clients */
.clients{padding:70px 0 0}
.clients h2{font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:500;text-align:center}
.clients-row{margin-top:26px;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.clients-track{display:flex;width:max-content;animation:marquee 40s linear infinite}
.clients-track img{height:92px;width:auto;max-width:none;margin-right:12px}
@keyframes marquee{to{transform:translateX(-50%)}}

/* About / what is */
.about{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.about-media{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/4.3}
.about-media img{width:100%;height:100%;object-fit:cover}
.about-media figcaption{position:absolute;left:18px;bottom:18px;right:18px;background:rgba(20,20,20,.78);backdrop-filter:blur(8px);color:#fff;border-radius:14px;padding:14px 18px;font-size:14px;line-height:1.45}
.about-media figcaption b{color:#fff}
.about-small{position:absolute;right:-1px;top:-1px;width:44%;border-bottom-left-radius:var(--r-md);overflow:hidden;border:8px solid #fff;border-top:0;border-right:0}
.facts{margin-top:34px;display:grid;gap:14px}
.fact{display:flex;gap:18px;padding:20px 22px;border-radius:var(--r-md);background:var(--soft);transition:background .2s}
.fact:hover{background:var(--red-soft)}
.fact i{flex:none;width:48px;height:48px;border-radius:14px;background:#fff;display:grid;place-items:center;color:var(--red)}
.fact i svg{width:24px;height:24px}
.fact h3{font-size:17px}
.fact p{font-size:15.5px;color:var(--muted);margin-top:4px;line-height:1.5}

/* Industries */
.ind{background:var(--ink);color:#fff;border-radius:48px;margin:0 12px;position:relative;overflow:hidden}
.ind .h2{color:#fff}
.ind .lead{color:rgba(255,255,255,.65)}
.ind-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap}
.ind-tiles{margin-top:50px;display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:190px;gap:14px}
.tile{position:relative;border-radius:22px;overflow:hidden;cursor:pointer;border:0;padding:0;background:#222;text-align:left;color:#fff;font-family:inherit;isolation:isolate}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .7s ease}
.tile::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,rgba(10,10,10,.9) 0%,rgba(10,10,10,.15) 65%);transition:background .3s}
.tile:hover img{transform:scale(1.06)}
.tile-in{position:absolute;left:22px;right:22px;bottom:20px}
.tile-in small{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:var(--red);border-radius:999px;padding:4px 10px}
.tile-in h3{color:#fff;font-size:clamp(19px,1.7vw,24px);margin-top:10px}
.tile-in p{font-size:14px;color:rgba(255,255,255,.7);margin-top:4px;line-height:1.4}
.tile.new .tile-in small{background:#fff;color:var(--red)}
.tile.active{outline:3px solid var(--red);outline-offset:-3px}
.t-oil{grid-column:span 3;grid-row:span 2}
.t-mine{grid-column:span 3;grid-row:span 2}
.t-metal{grid-column:span 2}
.t-chem{grid-column:span 2}
.t-equip{grid-column:span 2}

.rules-head{margin-top:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.rules-head h3{color:#fff;font-size:24px;text-transform:uppercase}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{height:40px;padding:0 16px;border-radius:999px;border:1px solid rgba(255,255,255,.2);background:transparent;color:rgba(255,255,255,.8);font:500 14px/1 Acrom,Arial,sans-serif;cursor:pointer;transition:all .2s}
.chip:hover{border-color:#fff;color:#fff}
.chip.on{background:var(--red);border-color:var(--red);color:#fff}
.chip sup{font-size:11px;opacity:.7;margin-left:3px}
.rules{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.rule{display:flex;align-items:center;gap:22px;padding:24px 26px;border-radius:22px;background:#1f1f1f;border:1px solid rgba(255,255,255,.06);transition:background .25s,transform .25s,border-color .25s;min-height:110px}
.rule:hover{background:#fff;transform:translateY(-3px)}
.rule:hover .rule-t{color:var(--ink)}
.rule:hover .rule-tag{color:var(--muted)}
.rule:hover .rule-go{background:var(--red);color:#fff}
.rule-n{flex:none;font-weight:700;font-size:34px;color:var(--red);line-height:1;width:52px;font-style:italic}
.rule-body{flex:1;min-width:0}
.rule-t{hyphens:auto;overflow-wrap:break-word}
.rule-tag{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.45);font-weight:500}
.rule-t{display:block;color:#fff;font-weight:500;font-size:16px;line-height:1.4;margin-top:4px;transition:color .25s}
.rule-pre{font-weight:300;opacity:.6}
.rule-go{flex:none;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:#fff;transition:all .25s}
.rule-go svg{width:18px;height:18px}
.rule[hidden]{display:none}
.rules-foot{margin-top:40px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;padding:28px 32px;border-radius:24px;background:linear-gradient(90deg,var(--red),#b80d24)}
.rules-foot p{flex:1;min-width:260px;font-size:18px;color:#fff;font-weight:500}

/* Audience */
.aud{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:50px}
.aud-card{border-radius:var(--r-lg);background:var(--soft);padding:30px 26px;display:flex;flex-direction:column;transition:background .25s,color .25s}
.aud-card:hover{background:var(--ink)}
.aud-card:hover h3,.aud-card:hover p{color:#fff}
.aud-card i{width:56px;height:56px;border-radius:16px;background:var(--red);display:grid;place-items:center;color:#fff}
.aud-card i svg{width:28px;height:28px}
.aud-card h3{font-size:20px;margin-top:26px;transition:color .25s}
.aud-card p{font-size:15.5px;color:var(--muted);margin-top:10px;line-height:1.5;transition:color .25s}

.formats{margin-top:16px;display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
.format-photo{position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:340px}
.format-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.format-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,10,10,.85),rgba(10,10,10,0) 60%)}
.format-photo div{position:absolute;z-index:1;left:30px;right:30px;bottom:28px;color:#fff}
.format-photo h3{color:#fff;font-size:26px}
.format-photo p{color:rgba(255,255,255,.8);margin-top:8px;font-size:16px;max-width:520px}
.format-list{border-radius:var(--r-lg);border:1px solid var(--line);padding:34px}
.format-list h3{font-size:22px;text-transform:uppercase}
.format-list ul{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:16px}
.format-list li{display:flex;gap:14px;font-size:16px;line-height:1.45}
.format-list li b{display:block;color:var(--ink)}
.format-list li span{color:var(--muted);font-size:15px}
.format-list li::before{content:"";flex:none;width:10px;height:10px;margin-top:8px;border-radius:3px;background:var(--red);transform:rotate(45deg)}

/* Steps */
.steps-sec{background:var(--soft)}
.steps{margin-top:54px;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
.step{position:relative;background:#fff;border-radius:var(--r-md);padding:28px 22px 26px;counter-increment:s}
.step::before{content:"0" counter(s);display:block;font-weight:700;font-style:italic;font-size:40px;color:var(--red);line-height:1}
.step h3{font-size:18px;margin-top:20px}
.step p{font-size:15px;color:var(--muted);margin-top:8px;line-height:1.5}
.step:not(:last-child)::after{content:"";position:absolute;top:44px;right:-14px;width:14px;height:2px;background:var(--red);z-index:1}

/* Docs */
.docs{display:grid;grid-template-columns:.95fr 1.05fr;gap:70px;align-items:center}
.docs-visual{position:relative;background:linear-gradient(160deg,#f3f3f3,#e9e9e9);border-radius:36px;padding:70px 50px 80px;display:grid;place-items:center;overflow:hidden}
.docs-visual::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(238,26,52,.18),transparent 70%);right:-120px;top:-120px}
.docs-visual .cert{width:100%;max-width:380px;transform:rotate(-3deg)}
.docs-visual .cert-proto{left:24px;top:30px;width:46%;max-width:210px}
.docs-list{margin-top:30px;display:grid;gap:14px}
.doc-item{display:flex;gap:18px;align-items:flex-start;padding:22px;border-radius:var(--r-md);border:1px solid var(--line)}
.doc-item i{flex:none;width:50px;height:50px;border-radius:14px;background:var(--red-soft);color:var(--red);display:grid;place-items:center}
.doc-item i svg{width:24px;height:24px}
.doc-item h3{font-size:18px}
.doc-item p{font-size:15.5px;color:var(--muted);margin-top:4px;line-height:1.5}

/* Gallery */
.gal{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-template-rows:260px 260px;gap:14px;margin-top:50px}
.gal figure{margin:0;position:relative;border-radius:var(--r-md);overflow:hidden;background:#ddd}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.gal figure:hover img{transform:scale(1.05)}
.gal figcaption{position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.92);color:var(--ink);font-size:13px;font-weight:500;border-radius:999px;padding:6px 12px}
.gal .g1{grid-row:span 2}
.gal .g4{grid-column:span 2}

/* Trust */
.trust{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin-top:50px}
.trust-card{min-width:0;border-radius:var(--r-lg);background:#fff;padding:30px;display:flex;flex-direction:column}
.trust-card h3{font-size:20px}
.trust-card p{color:var(--muted);font-size:15.5px;margin-top:10px;line-height:1.5}
.trust-card .pic{margin-top:auto;padding-top:26px;display:flex;justify-content:center;align-items:flex-end;min-height:280px}
.trust-card .pic img{border-radius:10px;box-shadow:0 18px 40px -14px rgba(0,0,0,.35);height:250px;width:auto;transform:rotate(-2deg);transition:transform .3s}
.trust-card:hover .pic img{transform:rotate(0) scale(1.03)}
.trust-card.dark{background:var(--ink)}
.trust-card.dark h3{color:#fff}
.trust-card.dark p{color:rgba(255,255,255,.7)}
.trust-card.dark .pic img{width:100%;height:auto;background:#fff;padding:12px;transform:none;border-radius:14px}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.faq-side{position:sticky;top:110px}
.faq-side .btn{margin-top:30px}
details{border-bottom:1px solid var(--line)}
details:first-child{border-top:1px solid var(--line)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px 0;font-weight:700;font-size:19px;color:var(--ink)}
summary::-webkit-details-marker{display:none}
summary::after{content:"";flex:none;width:40px;height:40px;border-radius:50%;background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ee1a34' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E") center/18px no-repeat;transition:transform .3s,background-color .3s}
details[open] summary::after{transform:rotate(45deg);background-color:var(--red-soft)}
details p{padding:0 60px 26px 0;color:var(--muted);font-size:16.5px}

/* Final CTA + form */
.cta{position:relative;color:#fff;border-radius:48px;margin:0 12px;overflow:hidden;background:#0d0d0d}
.cta-bg{position:absolute;inset:0;background:url(../img/refinery2.webp) center/cover}
.cta::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(100deg,rgba(197,15,39,.96) 0%,rgba(150,10,28,.88) 45%,rgba(20,20,20,.7) 100%)}
.cta .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.cta h2{color:#fff;font-size:clamp(30px,3.6vw,46px);text-transform:uppercase}
.cta .lead{color:rgba(255,255,255,.85)}
.contacts{margin-top:34px;display:grid;gap:12px}
.contact{display:flex;align-items:center;gap:16px;color:#fff;font-weight:500;font-size:17px}
.contact i{width:48px;height:48px;border-radius:14px;background:rgba(255,255,255,.14);display:grid;place-items:center;flex:none}
.contact i svg{width:22px;height:22px}
.contact small{display:block;font-size:13px;opacity:.7;font-weight:300}
.form{background:#fff;color:var(--text);border-radius:var(--r-lg);padding:36px;box-shadow:0 40px 80px -30px rgba(0,0,0,.6)}
.form h3{font-size:24px}
.form > p{color:var(--muted);font-size:15px;margin-top:6px}
.field{margin-top:16px}
.field label{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:6px}
.field input,.field select{width:100%;height:54px;border-radius:14px;border:1.5px solid var(--line);background:var(--soft);padding:0 16px;font:500 16px Acrom,Arial,sans-serif;color:var(--ink);transition:border-color .2s,background .2s;appearance:none}
.field select{background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23141414' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") right 14px center/18px no-repeat;padding-right:40px}
.field input:focus,.field select:focus{outline:none;border-color:var(--red);background-color:#fff}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-btns{display:grid;grid-template-columns:1fr;gap:10px;margin-top:22px}
.form-btns .btn{width:100%}
.form small.legal{display:block;margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.45}

/* Footer */
.ftr{padding:60px 0 110px;color:var(--muted);font-size:15px}
.ftr-in{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:40px}
.ftr img{height:54px;width:auto}
.ftr h4{font-size:14px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:14px}
.ftr a:hover{color:var(--red)}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ftr-bot{margin-top:50px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13.5px}
.ftr-bot{align-items:center}
.cr{display:inline-flex;align-items:center;gap:10px;color:var(--muted)}
.cr-badge{display:inline-flex;align-items:center;gap:9px;background:#050605;color:#eef0ea;border-radius:999px;padding:7px 14px 7px 12px;font:600 13.5px/1 "Onest","Inter Tight",system-ui,-apple-system,sans-serif;letter-spacing:-.01em;transition:transform .2s,box-shadow .2s}
.cr-logo{font-weight:800;font-size:14px;letter-spacing:-.03em;color:#eef0ea}
.cr-logo i{font-style:normal;color:#bdfe02}
.cr:hover .cr-badge{transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(189,254,2,.55)}

/* Floating WA & mobile bar */
.fab{position:fixed;right:24px;bottom:24px;z-index:60;width:64px;height:64px;border-radius:50%;background:var(--wa);display:grid;place-items:center;box-shadow:0 14px 30px -8px rgba(37,211,102,.7);transition:transform .2s}
.fab:hover{transform:scale(1.07)}
.fab svg{width:34px;height:34px;color:#fff}
.fab::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--wa);animation:pulse 2.2s ease-out infinite}
@keyframes pulse{from{transform:scale(1);opacity:.8}to{transform:scale(1.6);opacity:0}}
.mbar{display:none}

/* Reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}.clients-track{animation:none}.fab::before{display:none}html{scroll-behavior:auto}}

/* Responsive */
@media (max-width:1100px){
  .nav{display:none}
  .hdr-cta{margin-left:auto}
  .hero .wrap{grid-template-columns:minmax(0,1fr)}
  .cert-stage{justify-self:start;max-width:360px;margin:30px 0 0 30px}
  .stats-in{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .about,.docs,.faq-grid,.cta .wrap{grid-template-columns:1fr;gap:44px}
  .faq-side{position:static}
  .aud{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr 1fr}
  .step::after{display:none}
  .trust{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .ftr-in{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:16px;padding-bottom:72px}
  .wrap{padding:0 16px}
  .sec{padding:76px 0}
  .hdr-in{height:64px}
  .logo img{height:36px}
  .logo span,.hdr-phone{display:none}
  .hdr .btn{height:42px;padding:0 16px;font-size:14px}
  .hero{padding:100px 0 110px;min-height:auto}
  .hero h1{font-size:clamp(26px,8vw,36px);overflow-wrap:anywhere}
  .hero .eyebrow{font-size:11px;letter-spacing:.1em}
  .hero::before{background:linear-gradient(0deg,rgba(10,10,10,.97) 0%,rgba(10,10,10,.82) 55%,rgba(10,10,10,.55) 100%)}
  .hero-btns .btn{width:100%}
  .btn{white-space:normal;text-align:center;height:auto;min-height:56px;padding:12px 22px;line-height:1.25}
  .hdr .btn{min-height:42px;padding:0 16px}
  .cert-stage{max-width:300px;margin:44px auto 10px}
  .cert-proto{left:-10px}
  .cert-badge{right:-4px}
  .stat{padding:22px 18px}
  .clients-track img{height:64px}
  .ind,.cta{border-radius:28px;margin:0 8px}
  .ind-tiles{grid-template-columns:1fr 1fr;grid-auto-rows:170px;gap:10px}
  .t-oil,.t-mine{grid-column:span 2;grid-row:span 1}
  .t-metal,.t-chem{grid-column:span 1}
  .t-equip{grid-column:span 2}
  .tile-in{left:16px;right:16px;bottom:14px}
  .tile-in p{display:none}
  .rules{grid-template-columns:minmax(0,1fr)}
  .rule{padding:18px;gap:14px;min-height:0}
  .rule-n{font-size:26px;width:38px}
  .rule-go{display:none}
  .chips{flex-wrap:nowrap;overflow-x:auto;margin:0 -16px;padding:0 16px 6px;scrollbar-width:none}
  .chips::-webkit-scrollbar{display:none}
  .chip{flex:none}
  .rules-foot{padding:22px}
  .rules-foot .btn{width:100%}
  .aud{grid-template-columns:1fr}
  .formats{grid-template-columns:1fr}
  .format-list{padding:26px 22px}
  .steps{grid-template-columns:1fr}
  .docs-visual{padding:60px 24px 70px}
  .gal{grid-template-columns:1fr 1fr;grid-template-rows:200px 160px 160px}
  .gal .g1{grid-column:span 2;grid-row:span 1}
  .gal .g4{grid-column:span 2}
  .trust{grid-template-columns:minmax(0,1fr)}
  summary{font-size:17px;padding:20px 0}
  details p{padding-right:0}
  .form{padding:26px 20px}
  .row2{grid-template-columns:1fr}
  .ftr-in{grid-template-columns:1fr}
  .fab{display:none}
  .ftr{padding-bottom:40px}
  .ftr-bot{flex-direction:column;align-items:flex-start;gap:14px}
  .mbar{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 -8px 24px rgba(0,0,0,.08)}
  .mbar a{height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:14.5px}
  .mbar svg{width:20px;height:20px}
  .mbar .m-wa{background:var(--wa);color:#fff}
  .mbar .m-tel{background:var(--ink);color:#fff}
  .mbar .m-mail{background:var(--soft);color:var(--ink)}
}


/* низкие ноутбуки: кнопки на первом экране */
@media (min-width:761px) and (max-height:820px){
  .hero{padding-top:92px;padding-bottom:96px}
  .hero h1{font-size:clamp(32px,min(4.4vw,6.6vh),60px);margin-top:14px}
  .hero-sub{font-size:16.5px;margin-top:14px}
  .hero-checks{margin-top:16px;gap:8px}
  .hero-checks li{font-size:15px}
  .hero-btns{margin-top:22px}
  .hero .btn{height:52px}
}

/* ===== О компании ===== */
.co-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:end}
.co-head .lead{margin:0;max-width:none}
.co-grid{margin-top:44px;display:grid;grid-template-columns:minmax(0,1.85fr) minmax(0,1fr);gap:16px;align-items:stretch}
.co-side{display:grid;grid-template-rows:1fr 1fr auto;gap:16px;min-width:0}
.co-num{border-radius:var(--r-lg);background:var(--soft);padding:26px 28px;display:flex;flex-direction:column;justify-content:space-between;gap:14px}
.co-num.dark{background:var(--ink)}
.co-num.dark span{color:rgba(255,255,255,.7)}
.co-num b{display:block;white-space:nowrap;font-size:clamp(30px,3.4vw,52px);line-height:1;color:var(--red)}
.co-num span{display:block;font-size:15px;color:var(--muted);line-height:1.45}
.co-tags{display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start}
.co-tags span{font-size:13.5px;font-weight:500;border:1px solid var(--line);border-radius:999px;padding:7px 14px;color:var(--ink);background:#fff}
.video{position:relative;min-width:0;border-radius:var(--r-lg);overflow:hidden;min-height:clamp(340px,30vw,560px);background:#000;box-shadow:var(--shadow)}
.video-btn{position:absolute;inset:0;width:100%;height:100%;border:0;padding:0;cursor:pointer;background:#000;display:block}
.video-btn img{width:100%;height:100%;object-fit:cover;transition:transform .7s,opacity .3s;opacity:.85}
.video-btn:hover img{transform:scale(1.04);opacity:1}
.video-btn::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,10,10,.75),rgba(10,10,10,0) 55%)}
.video-play{position:absolute;z-index:1;left:50%;top:50%;width:96px;height:96px;margin:-48px 0 0 -48px;border-radius:50%;background:var(--red);display:grid;place-items:center;box-shadow:0 0 0 12px rgba(238,26,52,.25),0 20px 40px -10px rgba(238,26,52,.7);transition:transform .25s}
.video-btn:hover .video-play{transform:scale(1.08)}
.video-play svg{width:36px;height:36px;margin-left:5px;color:#fff}
.video-cap{position:absolute;z-index:1;left:28px;right:28px;bottom:24px;color:#fff;text-align:left;font:500 15px/1.4 Acrom,Arial,sans-serif}
.video-cap b{display:block;font-size:20px}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-end{position:absolute;inset:0;z-index:3;display:none;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:24px;text-align:center;color:#fff;background:linear-gradient(0deg,rgba(10,10,10,.9),rgba(10,10,10,.75)),url(../img/video-poster.webp) center/cover}
.video-end.on{display:flex}
.video-end h3{color:#fff;font-size:clamp(20px,2.2vw,30px);text-transform:uppercase;max-width:560px}
.video-end p{color:rgba(255,255,255,.75);font-size:15px;max-width:460px}
.video-end .btns{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.video-end .btn{height:52px;font-size:15px}
@media (max-width:760px){.video-end{gap:10px;padding:14px}.video-end p{display:none}.video-end h3{font-size:17px}.video-end .btn{min-height:44px;height:auto;padding:8px 16px;font-size:13.5px}}
@media (max-width:1100px){
  .co-head{grid-template-columns:minmax(0,1fr);gap:18px}
  .co-grid{grid-template-columns:minmax(0,1fr);margin-top:32px}
  .video{min-height:0;aspect-ratio:16/9}
  .co-side{grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:auto}
  .co-tags{grid-column:1/-1}
}
@media (max-width:760px){
  .co-grid{gap:12px;margin-top:26px}
  .co-side{gap:12px}
  .co-num{padding:18px 16px;border-radius:20px}
  .co-num b{font-size:clamp(22px,6.6vw,30px)}
  .co-num span{font-size:13.5px}
  .video{border-radius:20px}
  .video-play{width:68px;height:68px;margin:-34px 0 0 -34px}
  .video-play svg{width:26px;height:26px}
  .video-cap{left:16px;right:16px;bottom:14px;font-size:13px}
  .video-cap b{font-size:16px}
}

/* ===== HERO: адаптив под все разрешения ===== */
.hero{padding:clamp(96px,14vh,140px) 0 clamp(96px,12vh,130px)}
.hero h1{overflow-wrap:normal;font-size:clamp(34px,min(4.5vw,7.6vh),68px);margin-top:clamp(14px,2.4vh,22px)}
.hero-sub{margin-top:clamp(14px,2.6vh,24px)}
.hero-checks{margin-top:clamp(16px,3.2vh,30px);gap:clamp(8px,1.4vh,12px)}
.hero-btns{margin-top:clamp(22px,4vh,38px)}
.cert-stage{max-width:min(400px,30vw)}
@media (min-width:1600px){
  :root{--wrap:1380px}
  .hero .wrap{grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr)}
  .hero h1{font-size:clamp(34px,min(3.9vw,7.8vh),76px)}
  .hero-sub{max-width:700px}
  .cert-stage{max-width:440px;zoom:1.1}
}
@media (max-width:1280px){
  .logo span{display:none}
  .nav{gap:20px}
  .hero .wrap{gap:40px}
  .hero-checks li{font-size:16px}
  .cert-stage{zoom:.9}
}
@media (max-width:1180px){ .hdr-phone{display:none} }
@media (max-width:1100px) and (min-width:901px){
  .hero .wrap{grid-template-columns:minmax(0,1.5fr) minmax(0,.62fr)}
  .cert-stage{justify-self:end;margin:0;max-width:340px;zoom:.78}
  .hero h1{font-size:clamp(34px,min(5.4vw,7.4vh),60px)}
}
@media (max-width:900px){
  .hero{min-height:auto;padding:128px 0 120px}
  .hero .wrap{grid-template-columns:minmax(0,1fr)}
  .cert-stage{display:none}
  .hero h1{font-size:clamp(30px,7vw,58px)}
  .hero-sub{max-width:560px}
  .hero::before{background:linear-gradient(90deg,rgba(10,10,10,.95) 0%,rgba(10,10,10,.8) 60%,rgba(10,10,10,.55) 100%),linear-gradient(0deg,rgba(10,10,10,.9) 0%,rgba(10,10,10,0) 40%)}
}
@media (max-width:760px){
  .hero{padding:88px 0 96px}
  .hero-bg{background-position:65% center}
  .hero::before{background:linear-gradient(0deg,rgba(10,10,10,.97) 0%,rgba(10,10,10,.84) 55%,rgba(10,10,10,.6) 100%)}
  .hero .eyebrow{font-size:10.5px;letter-spacing:.08em;gap:8px}
  .hero .eyebrow::before{width:18px}
  .hero h1{font-size:clamp(26px,8.2vw,40px);margin-top:14px}
  .hero-sub{font-size:15.5px;line-height:1.5;margin-top:14px}
  .hero-checks{margin-top:18px;gap:9px}
  .hero-checks li{font-size:14.5px;line-height:1.4;gap:10px}
  .hero-checks li::before{width:20px;height:20px;background-size:12px;margin-top:0}
  .hero-btns{margin-top:24px;gap:10px}
  .hero-btns .btn{min-height:54px;font-size:15px}
  .hero-note{display:none}
  .stats{margin-top:-56px}
}
@media (max-width:360px){
  .wrap{padding:0 14px}
  .hero h1{font-size:25px}
  .hero-sub{font-size:14.5px}
  .hero-checks li{font-size:14px}
  .hdr .btn{padding:0 12px;font-size:13px}
  .hdr .btn svg{width:18px;height:18px}
}
@media (max-width:400px){
  .stat{padding:18px 14px}
  .stat span{font-size:13.5px;hyphens:auto;overflow-wrap:anywhere}
}
/* низкие телефоны (iPhone SE и т.п.) — кнопка должна быть на первом экране */
@media (max-width:760px) and (max-height:760px){
  .hero{padding-top:80px}
  .hero-sub{display:none}
  .hero-checks{margin-top:16px}
}
/* телефоны в альбомной ориентации и низкие окна */
@media (max-height:520px) and (orientation:landscape){
  .hero{min-height:auto;padding:90px 0 100px}
  .hero .wrap{grid-template-columns:minmax(0,1fr)}
  .cert-stage{display:none}
  .hero h1{font-size:clamp(26px,4.4vw,40px)}
  .hero-sub{display:none}
  .hero-checks{margin-top:14px}
  .hero-btns{margin-top:18px}
}