/* TarasovKN Design System v1.0 — 2026-07-19 */
    :root {
      --ink:#0c0e12;
      --muted:#5c6470;
      --line:#dfe3e8;
      --paper:#fff;
      --soft:#f3f5f8;
      --blue:#0a1940;
      --blue-2:#12367e;
      --accent:#2973ff;
      --radius:28px;
      --shadow:0 18px 60px rgba(10,25,64,.12);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:"Roboto Condensed","Arial Narrow",Arial,sans-serif;font-size:18px;line-height:1.45}
    img{max-width:100%;display:block}
    a{color:inherit}
    a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #71a3ff;outline-offset:3px}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.03;letter-spacing:-.035em}
    h1{font-size:clamp(3.2rem,7vw,6.7rem);max-width:1050px;margin-bottom:28px}
    h2{font-size:clamp(2.25rem,4.8vw,4.8rem);margin-bottom:24px;max-width:1000px}
    h3{font-size:clamp(1.35rem,2vw,2rem);margin-bottom:12px}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .section{padding:110px 0}
    .section-sm{padding:72px 0}
    .eyebrow{display:flex;align-items:center;gap:12px;text-transform:uppercase;letter-spacing:.15em;font-size:.78rem;font-weight:800;margin-bottom:24px}
    .eyebrow:before{content:"";width:28px;height:3px;background:currentColor}
    .lead{font-size:clamp(1.2rem,2vw,1.55rem);line-height:1.45;color:var(--muted);max-width:820px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:66px;padding:16px 30px;border:0;border-radius:999px;background:#fff;color:#0b1531;text-decoration:none;font-size:1.15rem;font-weight:800;transition:.2s transform,.2s background}
    .button:hover{transform:translateY(-2px);background:#f1f5ff}
    .button-dark{background:var(--ink);color:#fff}
    .button-dark:hover{background:#24304e}
    .button-blue{background:var(--accent);color:#fff}
    .button-blue:hover{background:#155fe6}
    header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(12,14,18,.08)}
    .header-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .logo img{width:220px;height:auto}
    nav{display:flex;gap:30px;align-items:center;font-weight:800}
    nav a{text-decoration:none}
    nav a:hover{text-decoration:underline;text-underline-offset:5px}
    .header-cta{padding:11px 20px;border-radius:999px;background:var(--ink);color:#fff}
    .hero{min-height:760px;display:flex;align-items:center;color:#fff;background-image:linear-gradient(90deg,rgba(3,12,34,.92) 0%,rgba(3,12,34,.63) 56%,rgba(3,12,34,.12) 100%),var(--hero-image,none);background-position:center;background-size:cover;background-repeat:no-repeat}
    .hero-inner{padding:78px 0 64px}
    .crumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:.86rem;color:rgba(255,255,255,.72);margin-bottom:60px}
    .crumbs a{text-underline-offset:4px}
    .hero .lead{color:rgba(255,255,255,.84);font-size:clamp(1.35rem,2.3vw,2rem);max-width:820px;margin-bottom:34px}
    .hero-note{margin:18px 0 0;color:rgba(255,255,255,.76);font-size:.95rem}
    .proof-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:64px;max-width:980px}
    .proof-card{padding:24px 26px;border-radius:22px;background:rgba(255,255,255,.96);color:var(--ink);box-shadow:var(--shadow)}
    .proof-card strong{display:block;font-size:2rem;line-height:1;margin-bottom:8px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:55px}
    .section-head .lead{max-width:500px;margin-bottom:4px}
    .problem-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
    .problem{border:1px solid var(--line);border-radius:var(--radius);padding:34px;min-height:245px;background:#fff}
    .problem-num{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:50%;background:#e9f0ff;color:var(--blue-2);font-weight:900;margin-bottom:42px}
    .problem p{color:var(--muted);margin-bottom:0}
    .definition{background:var(--blue);color:#fff}
    .definition-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
    .definition .lead{color:rgba(255,255,255,.8)}
    .artifact-list{display:grid;gap:14px}
    .artifact{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:24px;border:1px solid rgba(255,255,255,.2);border-radius:22px;background:rgba(255,255,255,.06)}
    .artifact b{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#fff;color:var(--blue)}
    .artifact h3{margin:2px 0 7px}
    .artifact p{color:rgba(255,255,255,.7);margin:0}
    .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step}
    .step{counter-increment:step;border-radius:24px;background:var(--soft);padding:28px;min-height:310px;display:flex;flex-direction:column}
    .step:before{content:"0" counter(step);font-size:1.1rem;font-weight:900;color:var(--accent);margin-bottom:auto}
    .step p{color:var(--muted);font-size:.96rem;margin:0}
    .cases{background:var(--soft)}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .case{background:#fff;border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;min-height:430px;box-shadow:0 10px 35px rgba(10,25,64,.06)}
    .case-tag{align-self:flex-start;padding:7px 11px;border-radius:999px;background:#eaf0ff;color:#173f91;font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
    .case h3{margin-top:34px}
    .case-result{font-size:clamp(2.4rem,4vw,4rem);line-height:1;font-weight:900;color:var(--blue-2);margin:18px 0}
    .case p{color:var(--muted)}
    .case a{margin-top:auto;font-weight:800;text-underline-offset:5px}
    .compare{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
    table{border-collapse:collapse;width:100%;min-width:760px;background:#fff}
    th,td{text-align:left;padding:22px 24px;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:var(--soft);font-size:.9rem;text-transform:uppercase;letter-spacing:.08em}
    tr:last-child td{border-bottom:0}
    td:first-child{font-weight:900}
    .format{background:var(--blue);color:#fff}
    .format-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:center}
    .price-box{padding:42px;border-radius:32px;background:#fff;color:var(--ink)}
    .price{font-size:clamp(3rem,6vw,5.7rem);line-height:.95;font-weight:900;margin:18px 0}
    .price-compact{font-size:clamp(2rem,4vw,3.2rem);line-height:1.05}
    .price span{font-size:1.1rem;font-weight:700;color:var(--muted)}
    .checklist{list-style:none;padding:0;margin:28px 0;display:grid;gap:12px}
    .checklist li{padding-left:30px;position:relative}
    .checklist li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:900}
    .price-note{font-size:.92rem;color:var(--muted)}
    .about-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:center}
    .portrait{border-radius:32px;overflow:hidden;background:var(--soft);aspect-ratio:4/5}
    .portrait img{width:100%;height:100%;object-fit:cover;object-position:center 24%}
    .facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:30px 0}
    .fact{padding:18px;border-radius:18px;background:var(--soft);font-weight:800}
    .materials{background:var(--soft)}
    .material-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .material{display:flex;justify-content:space-between;gap:24px;padding:22px 24px;border-radius:18px;background:#fff;text-decoration:none;font-weight:800;border:1px solid transparent}
    .material:hover{border-color:#9bbaff}
    .material span{color:var(--accent)}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .service-card{display:flex;flex-direction:column;min-height:300px;padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;text-decoration:none;transition:.2s transform,.2s border-color,.2s box-shadow}
    .service-card:hover{transform:translateY(-3px);border-color:#9bbaff;box-shadow:var(--shadow)}
    .service-card .eyebrow{color:var(--blue-2);margin-bottom:32px}
    .service-card p{color:var(--muted)}
    .service-card .link-arrow{margin-top:auto;font-weight:900;color:var(--blue-2)}
    .section-dark{background:var(--blue);color:#fff}
    .section-dark .lead,.section-dark p{color:rgba(255,255,255,.76)}
    .metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .metric{padding:26px;border-radius:22px;background:#fff;color:var(--ink)}
    .metric strong{display:block;font-size:clamp(2.2rem,4vw,4.2rem);line-height:1;color:var(--blue-2);margin-bottom:10px}
    .story-list{display:grid;gap:22px}
    .story{display:grid;grid-template-columns:.68fr 1.32fr;gap:42px;padding:42px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
    .story-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;font-weight:900;color:var(--blue-2)}
    .story-result{font-size:clamp(2.2rem,4vw,4rem);font-weight:900;line-height:1;margin:20px 0}
    .story-body h3{margin-top:28px}
    .story-body h3:first-child{margin-top:0}
    .story-body p,.story-body li{color:var(--muted)}
    .story-body ul{padding-left:22px}
    .cta-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
    .text-link{font-weight:900;text-underline-offset:5px}
    .notice{padding:18px 22px;border-left:4px solid var(--accent);background:#edf3ff;color:var(--ink);border-radius:0 16px 16px 0}
    .service-hero{min-height:620px}
    .service-hero h1{max-width:1120px}
    .service-hero .lead{max-width:900px}
    .outcome-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .outcome{padding:26px;border-radius:20px;background:var(--soft)}
    .outcome p{color:var(--muted);margin-bottom:0}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .related-grid .material{height:100%}
    .faq{display:grid;gap:10px;max-width:900px}
    details{border-bottom:1px solid var(--line);padding:0}
    summary{cursor:pointer;list-style:none;font-size:1.4rem;font-weight:900;padding:24px 45px 24px 0;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:5px;top:18px;font-size:2rem;font-weight:400}
    details[open] summary:after{content:"−"}
    details p{max-width:760px;color:var(--muted);padding:0 0 24px;margin:0}
    .contact{color:#fff;background-image:linear-gradient(90deg,rgba(3,12,34,.95),rgba(3,12,34,.6)),var(--contact-image,none);background-position:center;background-size:cover;background-repeat:no-repeat}
    .contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}
    .contact-card{background:#fff;color:var(--ink);padding:34px;border-radius:30px}
    .contact-card label{display:block;font-size:.85rem;font-weight:800;margin-bottom:7px}
    .contact-card input,.contact-card textarea{display:block;width:100%;font:inherit;border:1px solid #cfd5dd;border-radius:14px;padding:14px 16px;margin-bottom:15px;background:#fff}
    .contact-card textarea{min-height:115px;resize:vertical}
    .contact-card .button{width:100%;cursor:pointer}
    .contact-card .button:disabled{cursor:wait;opacity:.65;transform:none}
    .form-status{min-height:1.5em;margin-top:12px;font-size:.9rem;font-weight:700}
    .form-status.is-pending{color:var(--muted)}
    .form-status.is-success{color:#087443}
    .form-status.is-error{color:#b3261e}
    .consent{font-size:.76rem;color:var(--muted);margin:12px 0 0}
    footer{padding:42px 0;background:#090b10;color:#fff}
    .footer-inner{display:flex;justify-content:space-between;gap:30px;align-items:center}
    .footer-links{display:flex;gap:20px;flex-wrap:wrap}
    .footer-links a{color:rgba(255,255,255,.75)}
    @media(max-width:980px){
      header nav a:not(.header-cta){display:none}
      .section{padding:82px 0}
      .section-head,.definition-grid,.format-grid,.about-grid,.contact-grid{display:grid;grid-template-columns:1fr;gap:38px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .case-grid{grid-template-columns:1fr}
      .proof-strip{grid-template-columns:1fr 1fr}
      .service-grid,.metric-grid,.related-grid{grid-template-columns:repeat(2,1fr)}
      .story{grid-template-columns:1fr}
    }
    @media(max-width:640px){
      body{font-size:16px}
      .container{width:min(100% - 28px,1200px)}
      .header-inner{min-height:68px}
      .logo img{width:166px}
      .header-cta{font-size:.8rem;padding:10px 13px}
      .hero{min-height:auto}
      .hero-inner{padding:50px 0 44px}
      .crumbs{margin-bottom:38px}
      h1{font-size:clamp(2.75rem,13.7vw,4rem);overflow-wrap:anywhere}
      h2{font-size:2.45rem}
      .button{width:100%;min-height:60px}
      .proof-strip,.problem-grid,.steps,.facts,.material-grid,.service-grid,.metric-grid,.outcome-grid,.related-grid{grid-template-columns:1fr}
      .proof-strip{margin-top:42px}
      .proof-card{padding:20px}
      .problem{min-height:0;padding:26px}
      .problem-num{margin-bottom:28px}
      .step{min-height:255px}
      .price-box,.contact-card{padding:25px}
      .footer-inner{display:grid}
      .story{padding:26px}
    }