:root {
      --ink:#0b1418;
      --ink-2:#142228;
      --paper:#f4f1ea;
      --paper-2:#ece8df;
      --white:#ffffff;
      --accent:#6ed6c5;
      --accent-2:#9ee9db;
      --line:rgba(11,20,24,.14);
      --muted:#69767b;
      --max:1240px;
      --radius:22px;
      --shadow:0 18px 50px rgba(8,18,22,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);color:var(--ink);line-height:1.5}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    img{max-width:100%;display:block}
    .wrap{width:min(calc(100% - 44px),var(--max));margin:0 auto}
    .eyebrow{font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--muted)}
    .section{padding:110px 0}
    .section-dark{background:var(--ink);color:var(--white)}
    .section-dark .eyebrow{color:#9fb0b6}
    .section-dark .muted{color:#acb8bc}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(3.2rem,7vw,7rem);line-height:.92;letter-spacing:-.055em;font-weight:650;margin-bottom:34px;max-width:980px}
    h2{font-size:clamp(2.2rem,4.5vw,4.7rem);line-height:1;letter-spacing:-.045em;font-weight:620;margin-bottom:28px;max-width:900px}
    h3{font-size:1.55rem;letter-spacing:-.025em;margin-bottom:12px}
    p{font-size:1.02rem;color:#37464b}
    .muted{color:var(--muted)}

    /* Header */
    .site-header{position:fixed;inset:0 0 auto;z-index:50;border-bottom:1px solid transparent;transition:.25s ease}
    .site-header.scrolled{background:rgba(244,241,234,.92);backdrop-filter:blur(16px);border-color:var(--line)}
    .header-inner{height:84px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.03em;font-size:1.12rem;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:50%;background:var(--ink);display:grid;place-items:center;color:var(--paper);font-size:.72rem;letter-spacing:-.05em}
    .nav{margin-left:auto;display:flex;gap:26px;align-items:center}
    .nav a{font-size:.9rem;color:#4a595e;transition:.2s}
    .nav a:hover{color:var(--ink)}
    .lang{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:3px;background:rgba(255,255,255,.36)}
    .lang button{border:0;background:transparent;padding:7px 10px;border-radius:999px;cursor:pointer;color:#68767a;font-weight:700;font-size:.78rem}
    .lang button.active{background:var(--ink);color:white}
    .menu-btn{display:none;margin-left:auto;border:1px solid var(--line);background:transparent;width:44px;height:44px;border-radius:50%;cursor:pointer}

    /* Hero */
    .hero{min-height:850px;padding:168px 0 66px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;right:-160px;top:60px;width:620px;height:620px;border:1px solid rgba(11,20,24,.09);border-radius:50%}
    .hero:after{content:"";position:absolute;right:140px;top:210px;width:310px;height:310px;border-radius:50%;background:radial-gradient(circle at 36% 30%,rgba(110,214,197,.8),rgba(110,214,197,.18) 45%,rgba(110,214,197,0) 70%);filter:blur(2px)}
    .hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:54px;align-items:end}
    .hero-lead{max-width:720px;font-size:1.22rem;color:#4c5c61;margin-bottom:34px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 22px;border-radius:999px;font-weight:700;font-size:.92rem;transition:.22s ease;border:1px solid var(--ink)}
    .btn-primary{background:var(--ink);color:white}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(11,20,24,.16)}
    .btn-ghost:hover{background:rgba(255,255,255,.55)}
    .hero-panel{border-top:1px solid var(--line);padding-top:24px;display:grid;gap:18px}
    .hero-panel-item{display:grid;grid-template-columns:94px 1fr;gap:18px;font-size:.92rem}
    .hero-panel-item span:first-child{color:var(--muted)}
    .hero-strip{position:relative;z-index:2;margin-top:92px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr)}
    .metric{padding:24px 24px 24px 0;border-right:1px solid var(--line)}
    .metric:not(:first-child){padding-left:24px}
    .metric:last-child{border-right:0}
    .metric strong{display:block;font-size:1.75rem;line-height:1;margin-bottom:8px;letter-spacing:-.035em}
    .metric span{font-size:.86rem;color:var(--muted)}

    /* Intro */
    .intro-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:start}
    .intro-copy p{font-size:1.26rem;line-height:1.65;max-width:760px}

    /* Sector cards */
    .sector-head{display:flex;justify-content:space-between;gap:32px;align-items:end;margin-bottom:44px}
    .sector-head p{max-width:440px}
    .sector-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .sector-card{min-height:580px;border-radius:var(--radius);overflow:hidden;position:relative;background:var(--ink-2);box-shadow:var(--shadow);isolation:isolate}
    .sector-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,13,17,.02) 25%,rgba(6,13,17,.80) 100%);z-index:-1}
    .sector-card.prosthetics{background-image:url('../images/prosthetics.jpg');background-size:cover;background-position:center}
    .sector-card.food{background-image:url('../images/food.jpg');background-size:cover;background-position:center}
    .sector-content{position:absolute;inset:auto 0 0;padding:36px;color:white}
    .sector-number{position:absolute;top:26px;left:28px;width:44px;height:44px;border:1px solid rgba(255,255,255,.48);border-radius:50%;display:grid;place-items:center;color:white;font-size:.8rem;background:rgba(8,16,20,.12);backdrop-filter:blur(8px)}
    .sector-content p{color:#dae2e4;max-width:540px;margin-bottom:0}

    /* Operating model */
    .model-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
    .model-list{border-top:1px solid rgba(255,255,255,.14)}
    .model-item{display:grid;grid-template-columns:62px 1fr;gap:22px;padding:26px 0;border-bottom:1px solid rgba(255,255,255,.14)}
    .model-index{color:var(--accent);font-weight:700}
    .model-item h3{font-size:1.2rem}
    .model-item p{color:#9fadb2;margin-bottom:0;font-size:.96rem}

    /* Process */
    .process-grid{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .process-card{padding:34px 28px 34px 0;border-right:1px solid var(--line);min-height:260px}
    .process-card:not(:first-child){padding-left:28px}
    .process-card:last-child{border-right:0}
    .process-num{font-size:.8rem;color:var(--muted);margin-bottom:66px}
    .process-card h3{font-size:1.15rem}
    .process-card p{font-size:.94rem;margin-bottom:0}

    /* Quality */
    .quality-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:stretch}
    .quality-main{border-radius:var(--radius);background:#dce8e4;padding:54px;min-height:470px;position:relative;overflow:hidden}
    .quality-main:after{content:"LK";position:absolute;right:-20px;bottom:-92px;font-size:18rem;font-weight:800;line-height:1;color:rgba(11,20,24,.055);letter-spacing:-.09em}
    .quality-main p{font-size:1.18rem;max-width:650px}
    .quality-side{display:grid;gap:16px}
    .quality-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
    .quality-box p{margin-bottom:0;font-size:.94rem}

    /* CTA */
    .cta{padding:110px 0;background:#d8e8e3}
    .cta-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end}
    .cta h2{margin-bottom:0}
    .contact-card{background:var(--paper);border-radius:var(--radius);padding:32px;border:1px solid rgba(11,20,24,.1)}
    .contact-card a{display:block;font-weight:750;font-size:1.15rem;margin:4px 0 10px}
    .contact-row{padding:10px 0;border-bottom:1px solid var(--line)}
    .contact-row:last-of-type{border-bottom:0}
    .contact-label{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
    .contact-note{font-size:.84rem;color:var(--muted);margin:16px 0 0}

    /* Footer */
    footer{background:var(--ink);color:white;padding:32px 0}
    .footer-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .footer-copy{color:#9faeb3;font-size:.85rem}
    .footer-links{display:flex;gap:20px;font-size:.85rem;color:#bdc7ca}

    /* Language handling */
    [data-lang]{display:none}
    html[data-language="en"] [data-lang="en"], html[data-language="ru"] [data-lang="ru"]{display:initial}
    html[data-language="en"] div[data-lang="en"], html[data-language="ru"] div[data-lang="ru"]{display:block}

    @media (max-width: 980px){
      .nav{display:none;position:absolute;left:22px;right:22px;top:74px;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
      .nav.open{display:flex}
      .menu-btn{display:inline-grid;place-items:center}
      .header-inner>.lang{margin-left:0}
      .hero{min-height:auto;padding-top:145px}
      .hero-grid,.intro-grid,.model-grid,.quality-grid,.cta-grid{grid-template-columns:1fr}
      .hero-grid{gap:48px}
      .hero-strip,.process-grid{grid-template-columns:1fr 1fr}
      .metric:nth-child(2){border-right:0}
      .metric:nth-child(3),.metric:nth-child(4){border-top:1px solid var(--line)}
      .sector-grid{grid-template-columns:1fr}
      .sector-card{min-height:520px}
      .section{padding:88px 0}
      .sector-head{display:block}
    }
    @media (max-width: 640px){
      .wrap{width:min(calc(100% - 28px),var(--max))}
      .site-header .wrap{width:min(calc(100% - 20px),var(--max))}
      .header-inner{height:72px;gap:10px}
      .brand-mark{width:31px;height:31px}
      .brand{font-size:1rem}
      .hero{padding:126px 0 42px}
      h1{font-size:clamp(3rem,17vw,4.7rem)}
      .hero:before{right:-400px;top:10px}
      .hero:after{right:-80px;top:220px}
      .hero-strip,.process-grid{grid-template-columns:1fr}
      .metric,.metric:not(:first-child){padding:18px 0;border-right:0;border-top:1px solid var(--line)}
      .metric:first-child{border-top:0}
      .process-card,.process-card:not(:first-child){padding:25px 0;border-right:0;border-bottom:1px solid var(--line);min-height:auto}
      .process-card:last-child{border-bottom:0}
      .process-num{margin-bottom:30px}
      .sector-card{min-height:470px}
      .sector-content{padding:26px}
      .quality-main{padding:32px;min-height:420px}
      .quality-main:after{font-size:12rem}
      .footer-inner{align-items:flex-start;flex-direction:column}
      .footer-links{flex-wrap:wrap}
    }
  
/* Utility classes */
.section-top-tight{padding-top:30px}
.section-top-tighter{padding-top:20px}
.eyebrow-light{color:#dbe8e6}
.footer-brand-mark{background:#fff;color:var(--ink)}
.footer-copy-spaced{margin-top:10px}