/* =========================================================
   Main Pipeline Assurance — главная страница
   Цвета взяты из корпоративной презентации MPA
   ========================================================= */
:root{
  --navy-900:#061f45;
  --navy-800:#082f63;
  --navy:#0b3e80;          /* основной — заголовки, кнопки */
  --blue:#1a6fdc;          /* акцент */
  --blue-300:#3aa0ff;      /* светлая часть градиента дуги */
  --teal:#15c4c0;          /* из логотипа */
  --green:#23d084;         /* из логотипа */
  --ink:#1d2533;
  --text:#4a5566;
  --muted:#7b8699;
  --line:#e3e8f0;
  --bg:#ffffff;
  --bg-soft:#f3f6fa;

  --grad-blue:linear-gradient(160deg,var(--blue-300) 0%,var(--blue) 55%,#0d52b8 100%);
  --grad-logo:linear-gradient(90deg,var(--blue) 0%,var(--teal) 55%,var(--green) 100%);

  --f-head:"Montserrat",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --f-body:"Open Sans",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;

  --r-sm:4px;
  --r:8px;
  --shadow:0 10px 30px rgba(8,47,99,.10);
  --shadow-lg:0 24px 60px rgba(8,47,99,.18);
  --container:1240px;
  --header-h:84px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 10px)}
body{margin:0;font-family:var(--f-body);font-size:16px;line-height:1.65;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--f-head);color:var(--navy);margin:0 0 .5em;line-height:1.2}
p{margin:0 0 1em}
button{font:inherit;cursor:pointer}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.ico{width:15px;height:15px;fill:currentColor;flex:none}

/* ---------- Типографика ---------- */
.eyebrow{font-family:var(--f-head);font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin:0 0 14px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:28px;height:3px;border-radius:2px;background:var(--grad-logo)}
.eyebrow--light{color:#9fd0ff}
.h2{font-size:clamp(28px,3.4vw,42px);font-weight:800;letter-spacing:-.01em}
.h2--light{color:#fff}
.h4{font-size:19px;font-weight:700;margin-top:1.4em}
.h4--light{color:#fff;margin-top:0}
.lead{font-size:18px;color:var(--text);max-width:760px}

/* ---------- Кнопки ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--f-head);font-weight:700;font-size:14px;letter-spacing:.02em;padding:13px 24px;border-radius:var(--r-sm);border:2px solid transparent;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;white-space:nowrap}
.btn--lg{padding:16px 30px;font-size:15px}
.btn--block{width:100%}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:var(--navy);box-shadow:0 8px 22px rgba(26,111,220,.35);transform:translateY(-1px)}
.btn--ghost{border-color:rgba(255,255,255,.7);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--navy)}
.btn--outline{border-color:var(--navy);color:var(--navy)}
.btn--outline:hover{background:var(--navy);color:#fff}

/* ---------- Topbar ---------- */
.topbar{background:var(--navy-900);color:#c6d3e6;font-size:13px}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px}
.topbar__contacts{display:flex;gap:22px;flex-wrap:wrap}
.topbar__contacts a{display:inline-flex;align-items:center;gap:7px;transition:color .2s}
.topbar__contacts a:hover{color:#fff}

/* ---------- Header ---------- */
.header{position:sticky;top:0;z-index:50;height:var(--header-h);background:transparent;margin-bottom:calc(var(--header-h) * -1);transition:background .3s,box-shadow .3s,height .3s}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:24px}
.logo{position:relative;display:block;width:215px;flex:none}
.logo img{width:100%;height:auto;transition:opacity .3s}
.logo__dark{position:absolute;inset:0;opacity:0}
.nav{display:flex;gap:26px}
.nav a{white-space:nowrap;font-family:var(--f-head);font-weight:600;font-size:14px;color:#fff;position:relative;padding:6px 0;transition:color .2s}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--grad-logo);transition:width .25s}
.nav a:not(.btn):hover::after{width:100%}
.nav__cta-mobile{display:none}
.header__actions{display:flex;align-items:center;gap:18px}
.lang{display:flex;border:1px solid rgba(255,255,255,.4);border-radius:var(--r-sm);overflow:hidden}
.lang button{background:none;border:0;color:#fff;font-family:var(--f-head);font-weight:700;font-size:12px;padding:7px 10px;transition:background .2s,color .2s}
.lang button.is-active{background:#fff;color:var(--navy)}
.burger{display:none;width:44px;height:44px;border:0;background:none;padding:10px;flex-direction:column;justify-content:space-between}
.burger span{display:block;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}

.header.is-scrolled{background:#fff;box-shadow:0 4px 24px rgba(8,47,99,.10);height:72px}
.header.is-scrolled .logo__light{opacity:0}
.header.is-scrolled .logo__dark{opacity:1}
.header.is-scrolled .nav a:not(.btn){color:var(--ink)}
.header.is-scrolled .nav a:not(.btn):hover{color:var(--blue)}
.header.is-scrolled .lang{border-color:var(--line)}
.header.is-scrolled .lang button{color:var(--navy)}
.header.is-scrolled .lang button.is-active{background:var(--navy);color:#fff}
.header.is-scrolled .burger span{background:var(--navy)}

/* ---------- Hero ---------- */
.hero{position:relative;height:min(92vh,820px);min-height:600px;color:#fff;overflow:hidden;background:var(--navy-900)}
.hero__slides{position:absolute;inset:0}
.hero__slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;visibility:hidden;transition:opacity 1s ease,visibility 1s;display:flex;align-items:center}
.hero__slide::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,31,69,.94) 0%,rgba(8,47,99,.82) 42%,rgba(8,47,99,.35) 100%)}
.hero__slide.is-active{opacity:1;visibility:visible}
.hero__content{position:relative;z-index:2;padding-top:var(--header-h);padding-bottom:70px}
.hero__title{font-size:clamp(40px,6vw,76px);font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.04;margin-bottom:24px;text-transform:uppercase}
.hero__text{font-size:clamp(16px,1.4vw,19px);max-width:580px;color:#d9e5f5;margin-bottom:36px}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap}
.hero__slide.is-active .hero__content > *{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.hero__slide.is-active .hero__content > *:nth-child(2){animation-delay:.1s}
.hero__slide.is-active .hero__content > *:nth-child(3){animation-delay:.2s}
.hero__slide.is-active .hero__content > *:nth-child(4){animation-delay:.3s}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
/* фирменная дуга как на слайдах презентации */
.hero__arc{position:absolute;z-index:3;right:-18vw;top:-10%;width:42vw;height:120%;border-radius:50%;border-left:clamp(28px,4vw,64px) solid transparent;background:var(--grad-blue) border-box;-webkit-mask:linear-gradient(#000 0 0) padding-box exclude,linear-gradient(#000 0 0);mask:linear-gradient(#000 0 0) padding-box exclude,linear-gradient(#000 0 0);opacity:.9;pointer-events:none}
.hero__controls{position:absolute;z-index:4;left:0;right:0;bottom:118px;display:flex;justify-content:flex-end;align-items:center;gap:28px}
.hero__dots{display:flex;gap:10px}
.hero__dots button{width:34px;height:4px;border:0;border-radius:2px;background:rgba(255,255,255,.35);padding:0;transition:background .3s,width .3s}
.hero__dots button.is-active{width:56px;background:#fff}
.hero__arrows{display:flex;gap:10px}
.hero__arrows button{width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.06);display:grid;place-items:center;transition:background .2s}
.hero__arrows button:hover{background:rgba(255,255,255,.2)}
.hero__arrows svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Stats ---------- */
.stats{position:relative;z-index:5;margin-top:-80px}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:var(--r);box-shadow:var(--shadow-lg);overflow:hidden;padding:0}
.stat{padding:30px 28px;border-right:1px solid var(--line);position:relative}
.stat:last-child{border-right:0}
.stat::before{content:"";position:absolute;left:28px;top:0;width:40px;height:3px;background:var(--grad-logo)}
.stat__num{font-family:var(--f-head);font-weight:800;font-size:44px;line-height:1;color:var(--navy);margin-bottom:8px}
.stat__label{font-size:14px;line-height:1.45;color:var(--muted)}

/* ---------- Секции ---------- */
.section{padding:110px 0;position:relative}
.section__head{margin-bottom:52px}
.section__head--row{display:flex;justify-content:space-between;align-items:flex-end;gap:32px}
.section__head--row .h2{max-width:720px;margin-bottom:0}
.section__head--center{text-align:center}
.section__head--center .eyebrow{justify-content:center}
.section__head--center .eyebrow::before{display:none}

/* фоновые «кольца» как на слайдах */
.about > .container,.services > .container{position:relative;z-index:1}
.about::before,.services::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.55;background:
  radial-gradient(circle at 0% 30%,transparent 38%,var(--line) 38.1%,var(--line) 38.25%,transparent 38.4%),
  radial-gradient(circle at 18% 110%,transparent 45%,var(--line) 45.1%,var(--line) 45.2%,transparent 45.35%)}

/* ---------- About ---------- */
.about{padding-top:130px}
.about__grid{display:grid;grid-template-columns:1fr 1.1fr;gap:72px;align-items:center;position:relative}
.about__media{position:relative;border-radius:var(--r);overflow:visible}
.about__media img{border-radius:var(--r);width:100%;height:auto;aspect-ratio:1/1;object-position:center 30%;object-fit:cover;box-shadow:var(--shadow)}
.about__badge{position:absolute;right:-28px;bottom:40px;background:var(--navy);color:#fff;border-radius:var(--r);padding:22px 26px;box-shadow:var(--shadow-lg);max-width:220px}
.about__badge strong{display:block;font-family:var(--f-head);font-size:40px;font-weight:800;line-height:1;background:var(--grad-logo);-webkit-background-clip:text;background-clip:text;color:transparent}
.about__badge span{font-family:var(--f-head);font-weight:600;font-size:14px;line-height:1.3;display:block;margin-top:6px}
.checks{list-style:none;padding:0;margin:0 0 1.5em}
.checks li{position:relative;padding-left:30px;margin-bottom:10px}
.checks li::before{content:"";position:absolute;left:4px;top:.55em;width:10px;height:10px;background:var(--blue);transform:rotate(45deg);border-radius:2px}
.checks--light li{color:#d9e5f5}
.checks--light li::before{background:var(--teal)}
.quote{margin:28px 0 0;padding:22px 26px;border-left:4px solid var(--blue);background:var(--bg-soft);border-radius:0 var(--r) var(--r) 0}
.quote p{font-style:italic;color:var(--navy);font-size:17px;margin-bottom:8px}
.quote cite{font-style:normal;font-family:var(--f-head);font-weight:700;font-size:13px;color:var(--muted);letter-spacing:.04em}

/* ---------- Approach ---------- */
.approach{background:var(--bg-soft)}
.approach__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.appr-card{background:#fff;border-radius:var(--r);padding:32px 30px 34px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border-top:3px solid transparent;border-image:var(--grad-logo) 1;border-image-width:3px 0 0 0}
.appr-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.appr-card img{width:100%;max-width:280px;margin:0 auto 20px;height:auto}
.appr-card h3{font-size:17px;font-weight:700;text-transform:uppercase;letter-spacing:.01em;line-height:1.4;margin:0}

/* ---------- Services ---------- */
.services__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s,border-color .3s}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.svc__img{aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft)}
.svc__img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.svc:hover .svc__img img{transform:scale(1.07)}
.svc__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;position:relative}
.svc__num{position:absolute;top:-22px;right:18px;width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;font-family:var(--f-head);font-weight:700;font-size:13px;display:grid;place-items:center;box-shadow:0 6px 16px rgba(8,47,99,.3)}
.svc h3{font-size:17px;font-weight:700;margin-bottom:10px;padding-right:30px}
.svc p{font-size:14px;line-height:1.6;margin-bottom:16px;flex:1}
.more{font-family:var(--f-head);font-weight:700;font-size:13px;color:var(--blue);display:inline-flex;align-items:center;gap:6px}
.more::after{content:"→";transition:transform .2s}
.more:hover::after{transform:translateX(4px)}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.tags span{font-family:var(--f-head);font-weight:600;font-size:13px;color:var(--navy);background:var(--bg-soft);border:1px solid var(--line);border-radius:40px;padding:9px 16px}

/* ---------- Industries ---------- */
.industries{background:var(--navy-800);color:#fff;overflow:hidden}
.industries::after{content:"";position:absolute;right:-220px;top:-160px;width:620px;height:620px;border-radius:50%;border:56px solid transparent;background:var(--grad-blue) border-box;-webkit-mask:linear-gradient(#000 0 0) padding-box exclude,linear-gradient(#000 0 0);mask:linear-gradient(#000 0 0) padding-box exclude,linear-gradient(#000 0 0);opacity:.35;pointer-events:none}
.industries__grid{display:grid;grid-template-columns:1.3fr 1fr;gap:64px;position:relative;z-index:1}
.ind-list{list-style:none;margin:36px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ind-list li{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:22px 18px;display:flex;flex-direction:column;gap:14px;font-family:var(--f-head);font-weight:600;font-size:14px;line-height:1.35;transition:background .3s,border-color .3s}
.ind-list li:hover{background:rgba(255,255,255,.1);border-color:rgba(58,160,255,.6)}
.ind-list svg{width:36px;height:36px;fill:none;stroke:var(--teal);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.eff{background:rgba(6,31,69,.6);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:36px 34px;align-self:center}

/* ---------- HSE ---------- */
.hse__grid{display:grid;grid-template-columns:1.05fr 1fr;gap:72px;align-items:center}
.iso{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:30px 0}
.iso__item{background:var(--navy);color:#fff;border-radius:var(--r);padding:18px 16px}
.iso__item strong{display:block;font-family:var(--f-head);font-size:15px;margin-bottom:4px}
.iso__item span{font-size:13px;line-height:1.4;color:#c6d8ef}
.hse__note{font-family:var(--f-head);font-weight:600;color:var(--navy);text-transform:uppercase;font-size:14px;letter-spacing:.02em;line-height:1.55}
.hse__media{position:relative;padding:0 0 60px 60px}
.hse__img1{border-radius:var(--r);width:100%;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--shadow)}
.hse__img2{position:absolute;left:0;bottom:0;width:42%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--r);border:6px solid #fff;box-shadow:var(--shadow-lg)}

/* ---------- Projects ---------- */
.projects{background:var(--bg-soft)}
.projects__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.prj{position:relative;border-radius:var(--r);overflow:hidden;min-height:460px;display:flex;align-items:flex-end;color:#fff;box-shadow:var(--shadow)}
.prj img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s}
.prj::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(6,31,69,0) 25%,rgba(6,31,69,.92) 78%)}
.prj:hover img{transform:scale(1.06)}
.prj__body{position:relative;z-index:2;padding:28px}
.prj__tag{display:inline-block;font-family:var(--f-head);font-weight:700;font-size:12px;letter-spacing:.08em;background:var(--blue);border-radius:var(--r-sm);padding:5px 10px;margin-bottom:14px}
.prj h3{color:#fff;font-size:20px}
.prj p{font-size:14px;color:#d2deee;margin:0}

/* ---------- Clients ---------- */
.clients{padding-bottom:90px}
.marquee{overflow:hidden;padding:20px 0;-webkit-mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.marquee__track{display:flex;align-items:center;gap:80px;width:max-content;animation:marquee 32s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__track img{height:64px;width:auto;max-width:220px;object-fit:contain;filter:grayscale(1);opacity:.7;transition:filter .3s,opacity .3s}
.marquee__track img:hover{filter:none;opacity:1}
@keyframes marquee{to{transform:translateX(-50%)}}
.clients__list{list-style:none;padding:0;margin:44px 0 0;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 28px}
.clients__list li{font-family:var(--f-head);font-weight:600;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;position:relative}
.clients__list li:not(:last-child)::after{content:"";position:absolute;right:-16px;top:50%;width:5px;height:5px;background:var(--blue);transform:translateY(-50%) rotate(45deg)}

/* ---------- Contacts ---------- */
.contacts{background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy) 100%);color:#fff;overflow:hidden}
.contacts::before{content:"";position:absolute;left:-260px;bottom:-300px;width:640px;height:640px;border-radius:50%;border:1px solid rgba(255,255,255,.12);box-shadow:0 0 0 90px rgba(255,255,255,.02),0 0 0 180px rgba(255,255,255,.02)}
.contacts__grid{display:grid;grid-template-columns:1fr 480px;gap:72px;align-items:center;position:relative}
.contacts__lead{color:#c6d8ef;font-size:17px;max-width:560px}
.ct-list{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:18px}
.ct-list li{display:grid;grid-template-columns:170px 1fr;gap:12px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12);font-size:16px}
.ct-list__label{font-family:var(--f-head);font-weight:700;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#9fd0ff;padding-top:3px}
.ct-list a:hover{color:var(--teal)}
.form{background:#fff;color:var(--text);border-radius:var(--r);padding:36px;box-shadow:var(--shadow-lg)}
.form .h4{margin-top:0;font-size:22px}
.form__sub{color:var(--muted);font-size:14px;margin-bottom:22px}
.form label{display:block;margin-bottom:14px}
.form label span{display:block;font-family:var(--f-head);font-weight:600;font-size:12px;color:var(--navy);margin-bottom:6px;letter-spacing:.03em}
.form input,.form textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;background:var(--bg-soft);transition:border-color .2s,background .2s;resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue);background:#fff}
.form .is-invalid{border-color:#d9463b}
.form__ok{margin:14px 0 0;color:#0f8a5a;font-weight:600;font-size:14px}

/* ---------- Footer ---------- */
.footer{background:var(--navy-900);color:#aebcd1;font-size:14px;padding-top:64px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:48px}
.footer__logo{width:250px;height:auto;margin-bottom:20px}
.footer__text{max-width:360px}
.footer__nav,.footer__contacts{display:flex;flex-direction:column;gap:10px}
.footer a:hover{color:#fff}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;padding-bottom:22px;font-size:13px}
.footer__slogan{font-family:var(--f-head);letter-spacing:.3em;font-size:11px;color:#6f86a8}

.to-top{position:fixed;right:24px;bottom:24px;z-index:40;width:48px;height:48px;border-radius:50%;background:var(--blue);display:grid;place-items:center;box-shadow:0 8px 22px rgba(26,111,220,.4);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s,transform .3s,visibility .3s}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Анимация появления ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* =========================================================
   Адаптив
   ========================================================= */
@media (max-width:1420px){
  .header__cta{display:none}
}
/* казахские пункты меню длиннее */
@media (max-width:1600px){
  html[lang="kk"] .header__cta{display:none}
  html[lang="kk"] .nav{gap:22px}
}
@media (max-width:1300px){
  html[lang="kk"] .nav{gap:14px}
  html[lang="kk"] .nav a{font-size:12.5px}
  html[lang="kk"] .logo{width:170px}
}
@media (max-width:1200px){
  .nav{gap:18px}
  .nav a{font-size:13px}
  .logo{width:190px}
  .services__grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1100px){
  :root{--header-h:72px}
  .burger{display:flex}
  .nav{position:fixed;top:0;right:0;height:100vh;width:min(360px,86vw);background:#fff;flex-direction:column;gap:4px;padding:96px 28px 28px;clip-path:inset(0 0 0 100%);visibility:hidden;transition:clip-path .4s cubic-bezier(.2,.7,.2,1),visibility .4s;box-shadow:-20px 0 60px rgba(8,47,99,.2);z-index:-1}
  .nav a:not(.btn){color:var(--ink)!important;font-size:17px;padding:12px 0;border-bottom:1px solid var(--line)}
  .nav a:not(.btn)::after{display:none}
  .nav__cta-mobile{display:inline-flex;margin-top:20px}
  body.nav-open .nav{clip-path:inset(0 0 0 -60px);visibility:visible}
  body.nav-open .burger span{background:var(--navy)}
  body.nav-open .burger span:nth-child(1){transform:translateY(10px) rotate(45deg)}
  body.nav-open .burger span:nth-child(2){opacity:0}
  body.nav-open .burger span:nth-child(3){transform:translateY(-10px) rotate(-45deg)}
  .logo{width:190px}
  .about__grid,.hse__grid,.contacts__grid,.industries__grid{grid-template-columns:1fr;gap:48px}
  .about__media{max-width:520px}
  .about__badge{right:16px}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .approach__grid,.projects__grid{grid-template-columns:1fr 1fr}
  .services__grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__grid > div:first-child{grid-column:1/-1}
  .hero__arc{right:-30vw;width:60vw}
}
@media (max-width:720px){
  .topbar__addr,.topbar__contacts a:nth-child(2){display:none}
  .section{padding:80px 0}
  .container{padding:0 16px}
  .hero{min-height:700px;height:auto}
  .hero__slides{position:relative;height:700px}
  .hero__btns .btn--lg{padding:14px 22px;font-size:14px}
  .hero__controls{bottom:96px;justify-content:flex-start}
  .hero__content{padding-bottom:90px}
  .hero__arrows{display:none}
  .hero__title{font-size:32px}
  .hero__slide{align-items:flex-start}
  .hero__content{padding-top:calc(var(--header-h) + 36px)}
  .hero__text{font-size:15px}
  .hero__arc{display:none}
  .stats{margin-top:-70px}
  .stat{padding:22px 18px}
  .stat::before{left:18px}
  .stat__num{font-size:34px}
  .stat__label{font-size:13px}
  .section__head--row{flex-direction:column;align-items:flex-start}
  .approach__grid,.projects__grid,.services__grid{grid-template-columns:1fr}
  .ind-list{grid-template-columns:1fr 1fr}
  .iso{grid-template-columns:1fr}
  .hse__media{padding:0 0 40px 30px}
  .ct-list li{grid-template-columns:1fr;gap:4px}
  .form{padding:26px 20px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column}
  .marquee__track{gap:48px}
  .marquee__track img{height:48px}
  .about__badge{right:12px;bottom:20px;padding:16px 18px}
  .about__badge strong{font-size:32px}
  .lang button{padding:6px 8px}
  .logo{width:160px}
}