:root{
    --green:#223949;      /* фирменный тёмный */
    --accent:#BBD6EA;     /* фирменный светлый */
    --green-2:#3A5A72;
    --green-soft:#DDEAF4;
    --ink:#1C2A35;
    --muted:#66788A;
    --line:#E1E8EE;
    --bg:#FFFFFF;
    --bg-2:#F2F7FB;
    --pad:clamp(20px,6vw,136px);
    --surface:#FFFFFF;
    --on-primary:#FFFFFF;
    --doc-bg:#F2F7FB;
    --header-bg:rgba(255,255,255,.88);
    --overlay:#223949;
    --ov-rgb:255,255,255;
    --ov-hover:#BBD6EA;
    --chip-bg:#FFFFFF;
    --portrait-bg:linear-gradient(160deg,#BBD6EA,#F2F7FB);
    --portrait-arc:rgba(255,255,255,.7);
  }
  /* тёмная тема: #223949 / #BBD6EA */
  :root[data-theme="dark"]{
    --green:#BBD6EA;
    --green-2:#D6E7F3;
    --green-soft:rgba(187,214,234,.16);
    --ink:#E4EEF6;
    --muted:#93AEC4;
    --line:rgba(187,214,234,.16);
    --bg:#223949;
    --bg-2:#2F576C;
    --surface:#2F576C;
    --chip-bg:transparent;
    --on-primary:#223949;
    --doc-bg:rgba(187,214,234,.08);
    --header-bg:rgba(34,57,73,.88);
    --overlay:#BBD6EA;
    --ov-rgb:34,57,73;
    --ov-hover:#223949;
    --portrait-bg:linear-gradient(160deg,#BBD6EA,#223949);
    --portrait-arc:rgba(187,214,234,.18);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{transition:background-color .4s,color .4s;font-family:"Montserrat",Verdana,sans-serif;color:var(--ink);background:var(--bg);font-weight:400;line-height:1.6;-webkit-font-smoothing:antialiased}
  a{color:inherit;text-decoration:none}
  .wrap{padding:0 var(--pad);max-width:1600px;margin:0 auto}
  .eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-weight:500}
  h1,h2,h3{font-weight:300;color:var(--green);letter-spacing:-.01em;line-height:1.12}
  h2{font-size:clamp(32px,4.2vw,56px)}
  .btn{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--green);border-radius:999px;padding:16px 34px;font-size:15px;font-weight:500;color:var(--green);transition:.3s}
  .btn:hover{background:var(--green);color:var(--on-primary)}
  .btn.solid{background:var(--green);color:var(--on-primary)}
  .btn.solid:hover{background:var(--green-2);border-color:var(--green-2)}
  .arrow{transition:transform .3s}
  a:hover .arrow{transform:translateX(4px)}

  /* header */
  header{position:sticky;top:0;z-index:20;background:var(--header-bg);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .3s}
  .nav{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:32px;height:92px}
  .nav .logo{justify-self:start}
  .logo{display:block;width:96px;color:var(--green);transition:color .4s}
  .logo svg{display:block;width:100%;height:auto}
  .menu{display:flex;gap:40px;font-size:14px;color:var(--ink)}
  .menu a{position:relative}
  .menu a::after{content:"";position:absolute;left:0;bottom:-6px;height:1px;width:0;background:var(--green);transition:width .3s}
  .menu a:hover::after{width:100%}
  .nav-right{display:flex;align-items:center;gap:96px;grid-column:3;justify-self:end}
  /* «Связаться»: переливающаяся обводка */
  @property --bd-a{syntax:'<angle>';initial-value:0deg;inherits:false}
  @property --bd-fill{syntax:'<color>';initial-value:#fff;inherits:false}
  .nav-tg{--bd-fill:var(--bg);--bd-c1:#223949;--bd-c2:#BBD6EA;--bd-c3:#5F94BF;font-size:14px;color:var(--green);font-weight:500;border:1.5px solid transparent;border-radius:999px;padding:11px 26px;line-height:1;
    background:linear-gradient(var(--bd-fill),var(--bd-fill)) padding-box,conic-gradient(from var(--bd-a),var(--bd-c1),var(--bd-c2),var(--bd-c3),var(--bd-c1)) border-box;
    animation:bdSpin 3.5s linear infinite;transition:color .3s,--bd-fill .3s}
  [data-theme="dark"] .nav-tg{--bd-c1:#BBD6EA;--bd-c2:#FFFFFF;--bd-c3:#5F94BF}
  .nav-tg:hover{--bd-fill:var(--green);background:var(--green);color:var(--on-primary)}
  @keyframes bdSpin{to{--bd-a:360deg}}
  @media (prefers-reduced-motion: reduce){.nav-tg{animation:none}}
  .burger{display:block;width:28px;height:18px;position:relative;background:none;border:0;cursor:pointer}
  .burger::before{content:"";position:absolute;inset:-13px -8px}
  .burger span{position:absolute;right:0;height:1.5px;background:var(--green);transition:.3s}
  .burger span:nth-child(1){top:0;width:28px}.burger span:nth-child(2){top:8px;width:20px}.burger span:nth-child(3){top:16px;width:28px}
  .burger:hover span:nth-child(2){width:28px}

  /* hero */
  .hero{min-height:calc(100vh - 92px);display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:60px;padding-top:40px;padding-bottom:80px;position:relative}
  .hero h1{font-size:clamp(38px,5.2vw,76px);font-weight:200;line-height:1.02;margin:28px 0 36px}
  .hero h1 b{font-weight:400}
  .hero p.lead{font-size:clamp(16px,1.3vw,19px);color:var(--muted);max-width:620px;margin-bottom:48px}
  .hero-actions{display:flex;gap:16px;flex-wrap:wrap}
  .hero-btn-m{display:none}
  /* сменяющийся заголовок */
  .rotator .w{display:block;transition:opacity .6s ease,transform .7s cubic-bezier(.2,.7,.2,1),filter .6s ease}
  .rotator .w[hidden]{display:none}
  .rotator .w:nth-child(2){transition-delay:.08s}.rotator .w:nth-child(3){transition-delay:.16s}
  .rotator.out .w{opacity:0;transform:translateY(-.22em);filter:blur(6px)}
  .rotator.pre .w{opacity:0;transform:translateY(.28em);filter:blur(6px);transition:none}
  /* шахматная доска с ходом коня */
  .hero-board{justify-self:end;width:100%;max-width:440px}
  .hero-board svg{display:block;width:100%;height:auto;overflow:visible}
  .hb-sq{fill:var(--green-soft)}
  .hb-sq-l{fill:#F7FAFD}
  [data-theme="dark"] .hb-sq-l{fill:rgba(187,214,234,.05)}
  .hb-target{fill:var(--accent)}
  [data-theme="dark"] .hb-target{fill:rgba(187,214,234,.28)}
  .hb-path{stroke:var(--green);stroke-opacity:.55;stroke-width:1.4;stroke-dasharray:3 6;stroke-linecap:round;fill:none}
  .hb-dot{fill:var(--green)}
  .hb-knight{fill:var(--green);transition:fill .4s}
  .hero-visual{position:relative;height:100%;min-height:440px;display:flex;align-items:center;justify-content:center}
  .arc{position:absolute;width:min(520px,90%);aspect-ratio:1;border-radius:50%;border:44px solid var(--green-soft);border-left-color:transparent;border-bottom-color:transparent;transform:rotate(-20deg)}
  .hero-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:4px;padding:36px 36px 30px;width:min(380px,100%);box-shadow:0 30px 80px -40px rgba(34,57,73,.35)}
  .hero-card .doc-tag{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--green-2);font-weight:600}
  .hero-card h4{font-weight:400;font-size:19px;color:var(--green);margin:14px 0 18px;line-height:1.35}
  .hero-card .lines i{display:block;height:6px;border-radius:3px;background:var(--green-soft);margin-bottom:10px}
  .hero-card .lines i:nth-child(2){width:88%}.hero-card .lines i:nth-child(3){width:94%}.hero-card .lines i:nth-child(4){width:60%}
  .hero-card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
  .stamp{width:58px;height:58px;border:1.5px solid var(--green-2);border-radius:50%;display:grid;place-items:center;font-size:9px;letter-spacing:.12em;color:var(--green-2);text-align:center;line-height:1.3;transform:rotate(-12deg);font-weight:600}
  .scroll-hint{position:absolute;left:var(--pad);bottom:32px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:14px}
  .scroll-hint::before{content:"";width:48px;height:1px;background:var(--muted)}

  section{padding:140px 0}
  .sec-head{display:grid;grid-template-columns:1fr 1.4fr;gap:60px;margin-bottom:80px;align-items:end}
  .nw{white-space:nowrap}
  .sec-head p{color:var(--muted);font-size:17px;max-width:560px;justify-self:end}
  .sec-head .eyebrow{display:block;margin-bottom:22px}

  /* approach */
  .approach{background:var(--bg-2)}
  .principles{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
  .principle{padding:44px 36px 10px 0}
  .principle + .principle{padding-left:36px;border-left:1px solid var(--line)}
  .principle .num{font-size:64px;font-weight:300;color:var(--green);line-height:1;margin-bottom:28px}
  .principle h3{font-size:20px;font-weight:500;margin-bottom:14px}
  .principle p{color:var(--muted);font-size:15px}
  /* появление колонок при скролле: по очереди, цифра выезжает из-под маски */
  .principle.reveal{opacity:1;transform:none}
  .principle .num,.principle h3,.principle p{transition:opacity .8s ease,transform .9s cubic-bezier(.2,.7,.2,1),clip-path .9s cubic-bezier(.2,.7,.2,1)}
  .principle.reveal:not(.in) .num{opacity:0;transform:translateY(40%);clip-path:inset(0 0 100% 0)}
  .principle.reveal:not(.in) h3,.principle.reveal:not(.in) p{opacity:0;transform:translateY(16px)}
  .principle .num{clip-path:inset(0 0 0 0)}
  .principle:nth-child(2) .num{transition-delay:.12s}.principle:nth-child(3) .num{transition-delay:.24s}.principle:nth-child(4) .num{transition-delay:.36s}
  .principle h3{transition-delay:.2s}.principle:nth-child(2) h3{transition-delay:.32s}.principle:nth-child(3) h3{transition-delay:.44s}.principle:nth-child(4) h3{transition-delay:.56s}
  .principle p{transition-delay:.28s}.principle:nth-child(2) p{transition-delay:.4s}.principle:nth-child(3) p{transition-delay:.52s}.principle:nth-child(4) p{transition-delay:.64s}
  @media (prefers-reduced-motion: reduce){.principle .num,.principle h3,.principle p{transition:none}}

  /* practice */
  .practice-list{border-top:1px solid var(--line)}
  .practice-item{position:relative;isolation:isolate;display:grid;grid-template-columns:80px 1fr 1.3fr 40px;gap:40px;align-items:center;padding:38px 0;border-bottom:1px solid var(--line)}
  .practice-item::before{content:"";position:absolute;inset:0 -24px;background:var(--bg-2);opacity:0;transition:opacity .5s ease;z-index:-1;border-radius:4px}
  .practice-item > *{transition:transform .6s cubic-bezier(.2,.7,.2,1),color .4s}
  .practice-item:hover::before{opacity:1}
  .practice-item:hover h3{transform:translateX(10px)}
  .practice-item:hover .plus{transform:rotate(90deg)}
  .practice-note{display:block;margin:64px 0 20px}
  .practice-item .idx{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
  .practice-item h3{font-size:clamp(22px,2vw,30px)}
  .practice-item p{color:var(--muted);font-size:15px}
  .practice-item .plus{font-size:28px;font-weight:200;color:var(--green);text-align:right}

  /* cases */
  .filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:48px}
  .chip{border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-size:13px;cursor:pointer;background:var(--chip-bg);color:var(--ink);font-family:inherit;transition:.25s}
  .chip:hover{border-color:var(--green)}
  .chip.active{background:var(--green);color:var(--on-primary);border-color:var(--green)}
  .cases{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
  .case{border:1px solid var(--line);border-radius:4px;padding:44px;display:flex;flex-direction:column;transition:border-color .4s, transform .5s cubic-bezier(.2,.7,.2,1), background-color .4s;background:var(--surface)}
  .case:hover{border-color:var(--accent);transform:translateY(-3px)}
  .case.hide{display:none}
  .case-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;font-size:13px;color:var(--muted)}
  .tag{color:var(--green-2);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:11px}
  .case h3{font-size:clamp(22px,1.9vw,28px);margin-bottom:28px}
  .case dl{display:grid;grid-template-columns:120px 1fr;gap:14px 24px;font-size:15px;margin-bottom:32px}
  .case dt{color:var(--muted);font-size:13px;padding-top:2px}
  .case dd{color:var(--ink)}
  .docs{margin-top:auto;padding-top:24px;border-top:1px solid var(--line)}
  .docs .eyebrow{font-size:10px;margin-bottom:14px;display:block}
  .doc-list{display:flex;flex-wrap:wrap;gap:10px}
  .doc{display:inline-flex;align-items:center;gap:10px;font-size:13px;padding:9px 14px;background:var(--doc-bg);border-radius:3px;color:var(--green);transition:background .25s}
  .doc:hover{background:var(--green-soft)}
  .doc svg{flex:none}

  /* library */
  .library{background:var(--bg-2);color:var(--green)}
  .library h2,.library h3{color:var(--green)}
  .library .eyebrow{color:var(--muted)}
  .library .sec-head p{color:var(--muted)}
  .articles{border-top:1px solid var(--line)}
  .article{display:grid;grid-template-columns:140px 1fr 200px 40px;gap:40px;align-items:baseline;padding:36px 0;border-bottom:1px solid var(--line);transition:opacity .3s}
  .articles:hover .article{opacity:.45}
  .articles .article:hover{opacity:1}
  .article time{font-size:13px;color:var(--muted)}
  .article h3{font-size:clamp(19px,1.6vw,24px);font-weight:400;line-height:1.35}
  .article .src{font-size:13px;color:var(--muted)}
  .article .arrow{text-align:right;font-size:20px}
  .tg-box{margin-top:90px;display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center;padding:56px;border:1px solid var(--line);border-radius:4px;background:var(--surface)}
  .tg-box h3{font-size:clamp(24px,2.4vw,34px);margin-bottom:14px}
  .tg-box p{color:var(--muted)}
  .tg-box .btn{background:var(--green);border-color:var(--green);color:var(--on-primary);justify-self:end}
  .tg-box .btn:hover{background:var(--green-2);border-color:var(--green-2)}

  /* about */
  .about-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:100px;align-items:start}
  .portrait{aspect-ratio:4/5;background:var(--portrait-bg);border-radius:4px;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:36px}
  .portrait::before{content:"";position:absolute;right:-30%;top:-10%;width:90%;aspect-ratio:1;border-radius:50%;border:38px solid var(--portrait-arc);border-left-color:transparent;border-bottom-color:transparent}
  .portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 20%}
  .portrait:has(img)::before{display:none}
  /* размытая мини-копия фото, пока грузится оригинал */
  .portrait:has(img)::after{content:"";position:absolute;inset:0;background:var(--lqip) center 20%/cover no-repeat;filter:blur(16px);transform:scale(1.12)}
  .partner .portrait:has(img)::after{background-position:45% 30%}
  .portrait img{z-index:1;opacity:0;transition:opacity .7s ease}
  .portrait img.ld{opacity:1}
  @media (min-width:1101px){.about-grid .portrait{position:sticky;top:120px}}
  .about-grid.partner{grid-template-columns:1.15fr 1fr;margin-top:140px;padding-top:120px;border-top:1px solid var(--line)}
  .partner .portrait img{object-position:45% 30%}
  .about-grid .role{font-size:15px;font-weight:500;letter-spacing:.04em;color:var(--green);margin:-14px 0 28px}
  .about-sub{font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--green);margin:0 0 16px}
  .edu{margin-top:40px;padding-top:36px;border-top:1px solid var(--line)}
  .edu .eyebrow{display:block;margin-bottom:20px}
  .edu ul{list-style:none;display:flex;flex-direction:column;gap:18px}
  .edu li{display:grid;grid-template-columns:180px 1fr;gap:24px;font-size:15px}
  .edu li b{font-weight:500;color:var(--green)}
  .edu li span{color:var(--muted)}
  @media (max-width:680px){.edu li{grid-template-columns:1fr;gap:4px}}
  .about-grid h2{margin:22px 0 32px}
  .about-grid p{color:var(--muted);font-size:17px;margin-bottom:20px}
  .facts{display:grid;grid-template-columns:repeat(2,1fr);gap:30px 50px;margin-top:48px;padding-top:40px;border-top:1px solid var(--line)}
  .fact b{display:block;font-size:15px;font-weight:500;color:var(--green);margin-bottom:6px}
  .fact span{font-size:14px;color:var(--muted)}
  .fact span a{color:var(--green);border-bottom:1px solid var(--line);transition:border-color .3s}
  .fact span a:hover{border-color:var(--green)}

  /* contact */
  .contact{background:var(--bg-2)}
  .contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:80px;align-items:start}
  .contact h2{font-size:clamp(36px,5vw,72px);font-weight:200;margin:22px 0 30px}
  .contact p{color:var(--muted);font-size:17px;max-width:520px}
  /* форма обратного звонка */
  .cb-form{display:grid;grid-template-columns:1fr 1fr;gap:36px 40px;margin-top:64px;max-width:640px}
  .cb-title{grid-column:1/-1;font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--green)}
  .cb-field{display:flex;flex-direction:column;gap:14px}
  .cb-field span{font-size:15px;color:var(--muted)}
  .cb-field input{border:0;border-bottom:1px solid var(--muted);background:transparent;padding:6px 0 12px;font:300 20px/1.3 "Montserrat",Verdana,sans-serif;color:var(--ink);outline:none;border-radius:0;transition:border-color .3s}
  .cb-field input::placeholder{color:var(--muted);opacity:.5}
  .cb-field input:focus{border-color:var(--green)}
  .cb-field.err input{border-color:#C0504D}
  .cb-field.err span{color:#C0504D}
  .cb-side{grid-column:2;display:flex;flex-direction:column;gap:16px}
  .cb-submit{display:flex;justify-content:space-between;align-items:center;width:100%;background:none;border:0;border-bottom:1px solid var(--green);padding:6px 0 14px;cursor:pointer;font:400 20px/1.3 "Montserrat",Verdana,sans-serif;color:var(--green)}
  .cb-submit .arrow{font-size:22px;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
  .cb-submit:hover .arrow{transform:translateX(8px)}
  .cb-submit:disabled{opacity:.5;cursor:default}
  .contact .cb-consent{font-size:12px;line-height:1.5;color:var(--muted);max-width:none}
  .cb-consent a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
  .cb-msg{grid-column:1/-1;font-size:15px;color:var(--green);min-height:0}
  .cb-msg:empty{display:none}
  .cb-form.sent .cb-field,.cb-form.sent .cb-side{opacity:.4;pointer-events:none}
  @media (max-width:680px){.cb-form{grid-template-columns:1fr;gap:28px;margin-top:48px}.cb-side{grid-column:1}}
  .channels{display:flex;flex-direction:column}
  .channel{display:flex;justify-content:space-between;align-items:center;padding:28px 0;border-bottom:1px solid var(--line);font-size:clamp(18px,1.6vw,22px);color:var(--green);font-weight:300}
  .channel:first-child{border-top:1px solid var(--line)}
  .channel small{display:block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:500;margin-bottom:6px}

  /* футер */
  .site-footer{background:#223949;color:rgba(255,255,255,.7);padding:96px 0 40px;font-size:15px}
  [data-theme="dark"] .site-footer{background:#1A2E3C;border-top:1px solid rgba(187,214,234,.14)}
  .ft-top{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.2fr;gap:56px;padding-bottom:72px;border-bottom:1px solid rgba(255,255,255,.12)}
  .ft-logo{display:block;width:150px;color:#fff;margin-bottom:28px}
  .ft-logo svg{display:block;width:100%;height:auto}
  .ft-brand p{max-width:340px;color:rgba(255,255,255,.6);margin-bottom:32px}
  .ft-cta{display:inline-flex;align-items:center;gap:12px;background:#BBD6EA;color:#223949;border-radius:999px;padding:15px 28px;font-size:14px;font-weight:600;transition:background-color .3s,transform .3s}
  .ft-cta:hover{background:#fff;transform:translateY(-2px)}
  .ft-col{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
  .ft-col small{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:8px}
  .ft-col a{color:rgba(255,255,255,.85);position:relative;transition:color .3s}
  .ft-col a:hover{color:#BBD6EA}
  .ft-col .ft-big{font-size:22px;font-weight:300;color:#fff}
  .ft-note{font-size:13px;color:rgba(255,255,255,.45);margin-top:6px}
  .ft-channel{display:flex!important;justify-content:space-between;align-items:center;gap:18px;width:100%;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14)}
  .ft-channel .arrow{font-size:20px;color:#BBD6EA}
  .ft-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px 32px;flex-wrap:wrap;padding-top:32px;font-size:13px;color:rgba(255,255,255,.45)}
  .ft-bottom a{color:rgba(255,255,255,.6);transition:color .3s}
  .ft-bottom a:hover{color:#BBD6EA}
  .ft-up{background:none;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:999px;padding:9px 18px;font:inherit;font-size:13px;cursor:pointer;display:inline-flex;gap:8px;align-items:center;transition:background-color .3s,color .3s}
  .ft-up:hover{background:#fff;color:#223949}
  @media (max-width:1100px){.ft-top{grid-template-columns:1fr 1fr;gap:48px}.ft-brand{grid-column:1/-1}}
  @media (max-width:680px){.site-footer{padding:72px 0 32px}.ft-top{grid-template-columns:1fr;gap:40px;padding-bottom:48px}.ft-bottom{flex-direction:column;align-items:flex-start}}

  /* reveal */
  .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s ease, transform .9s ease}
  .reveal.in{opacity:1;transform:none}

  /* mobile menu */
  [data-theme="dark"] .case:hover{border-color:rgba(255,255,255,.7)}
  /* переключатель языка */
  .lang-switch{display:flex;padding:3px;border-radius:999px;background:var(--green-soft);flex:none}
  .lang-switch button{border:0;background:none;font:600 11px/1 "Montserrat",Verdana,sans-serif;letter-spacing:.12em;color:var(--muted);padding:8px 10px;border-radius:999px;cursor:pointer;transition:background-color .3s,color .3s}
  .lang-switch button[aria-pressed="true"]{background:var(--green);color:var(--on-primary)}
  .lang-switch button:focus-visible{outline:2px solid var(--green);outline-offset:2px}
  /* переключатель темы */
  .theme-toggle{position:relative;width:58px;height:30px;border-radius:999px;border:0;background:var(--green-soft);cursor:pointer;padding:0;flex:none;transition:background-color .4s}
  .theme-toggle:hover{background:var(--line)}
  .theme-toggle:focus-visible{outline:2px solid var(--green);outline-offset:3px}
  .theme-toggle .knob{position:absolute;top:4px;left:4px;width:22px;height:22px;border-radius:50%;background:var(--green);display:grid;place-items:center;transition:transform .4s cubic-bezier(.6,0,.2,1),background-color .4s}
  .theme-toggle svg{width:13px;height:13px;color:var(--on-primary)}
  .theme-toggle .moon{display:none}
  [data-theme="dark"] .theme-toggle .knob{transform:translateX(28px)}
  [data-theme="dark"] .theme-toggle .sun{display:none}
  [data-theme="dark"] .theme-toggle .moon{display:block}
  /* полноэкранное меню */
  body.locked{overflow:hidden}
  .overlay{position:fixed;inset:0;z-index:50;background:var(--overlay);color:rgb(var(--ov-rgb));display:grid;grid-template-rows:auto 1fr auto;padding:0 var(--pad);clip-path:inset(0 0 100% 0);transition:clip-path .7s cubic-bezier(.77,0,.18,1);overflow-y:auto}
  .overlay.open{clip-path:inset(0 0 0 0)}
  .ov-top{display:flex;justify-content:space-between;align-items:center;height:92px}
  .ov-top .logo{color:rgb(var(--ov-rgb))}
  .ov-close{width:40px;height:40px;position:relative;background:none;border:0;cursor:pointer}
  .ov-close::before,.ov-close::after{content:"";position:absolute;left:4px;right:4px;top:50%;height:1.5px;background:rgb(var(--ov-rgb));transition:transform .4s}
  .ov-close::before{transform:rotate(45deg)}.ov-close::after{transform:rotate(-45deg)}
  .ov-close:hover::before{transform:rotate(135deg)}.ov-close:hover::after{transform:rotate(45deg)}
  .ov-body{display:grid;grid-template-columns:1fr 1.6fr;gap:60px;align-items:center;padding:40px 0}
  .ov-info{display:flex;flex-direction:column;gap:44px;font-size:15px}
  .ov-info small{display:block;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:rgba(var(--ov-rgb),.45);margin-bottom:14px}
  .ov-info a{display:block;color:rgba(var(--ov-rgb),.9);margin-bottom:6px;transition:color .25s}
  .ov-info a:hover{color:var(--ov-hover)}
  .ov-nav{display:flex;flex-direction:column;counter-reset:n}
  .ov-nav a{counter-increment:n;display:flex;align-items:baseline;gap:28px;font-size:clamp(34px,5.4vw,76px);font-weight:200;line-height:1.18;letter-spacing:-.01em;color:rgb(var(--ov-rgb));opacity:0;transform:translateY(30px);transition:opacity .5s, transform .5s, color .25s}
  .ov-nav a::before{content:"0" counter(n);font-size:17px;font-weight:500;color:rgba(var(--ov-rgb),.45);min-width:28px}
  .ov-nav:hover a{color:rgba(var(--ov-rgb),.35)}
  .ov-nav a:hover{color:var(--ov-hover)}
  .overlay.open .ov-nav a{opacity:1;transform:none}
  .overlay.open .ov-nav a:nth-child(1){transition-delay:.25s}.overlay.open .ov-nav a:nth-child(2){transition-delay:.3s}.overlay.open .ov-nav a:nth-child(3){transition-delay:.35s}
  .overlay.open .ov-nav a:nth-child(4){transition-delay:.4s}.overlay.open .ov-nav a:nth-child(5){transition-delay:.45s}.overlay.open .ov-nav a:nth-child(6){transition-delay:.5s}
  .ov-nav:hover a{transition-delay:0s}
  .ov-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:32px 0;border-top:1px solid rgba(var(--ov-rgb),.14);font-size:13px;color:rgba(var(--ov-rgb),.45)}
  .ov-cta{display:inline-flex;gap:14px;align-items:center;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:rgb(var(--ov-rgb));padding-bottom:8px;border-bottom:1px solid rgba(var(--ov-rgb),.5)}
  .ov-left{display:flex;align-items:center;flex-wrap:wrap;gap:16px 32px}
  .ov-settings{display:flex;align-items:center;gap:14px;--green:rgb(var(--ov-rgb));--green-soft:rgba(var(--ov-rgb),.12);--line:rgba(var(--ov-rgb),.2);--muted:rgba(var(--ov-rgb),.6);--on-primary:var(--overlay)}
  .ov-settings .theme-toggle:hover{background:rgba(var(--ov-rgb),.2)}
  .ov-cta:hover{border-color:var(--ov-hover);color:var(--ov-hover)}

  @media (max-width:1100px){
    .menu{display:none}
    .ov-body{grid-template-columns:1fr;gap:48px;align-items:start}
    .ov-info{order:2;flex-direction:row;flex-wrap:wrap;gap:32px 60px}
    .hero{grid-template-columns:1fr;min-height:auto;padding-top:60px}
    .hero-visual{min-height:380px}
    .hero-board{justify-self:start;max-width:360px}
    .scroll-hint{display:none}
    .sec-head,.about-grid,.contact-grid,.tg-box{grid-template-columns:1fr;gap:36px}
    .about-grid.partner{grid-template-columns:1fr}
    .partner .portrait{order:-1}
    .tg-box .btn{justify-self:start}
    .principles{grid-template-columns:repeat(2,1fr)}
    .principle:nth-child(3){padding-left:0;border-left:0}
    .cases{grid-template-columns:1fr}
    .article{grid-template-columns:110px 1fr 40px}
    .article .src{display:none}
  }
  @media (max-width:680px){
    .hero-board{justify-self:center;max-width:330px;margin-top:16px}
    .hero-actions .hero-btn-d{display:none}
    .hero-actions .hero-btn-m{display:inline-flex}
    .hero{padding-bottom:120px}
    .nav,.ov-top{height:76px}
    .ov-nav a{gap:16px;font-size:30px;line-height:1.2}
    .ov-body{padding:16px 0;gap:36px}
    .ov-info{gap:20px 40px}
    .ov-bottom{padding:20px 0}
    .ft-col a{padding:6px 0}
    .ov-bottom{flex-wrap:wrap}
    .nav-tg{display:none}
    .nav-right{gap:10px}
    .logo{width:78px}
    .lang-switch button{padding:7px 8px}
    .theme-toggle{width:52px}
    [data-theme="dark"] .theme-toggle .knob{transform:translateX(22px)}
    .hero h1{font-size:clamp(26px,8.2vw,38px)}
    section{padding:90px 0}
    .sec-head{margin-bottom:48px}
    .principles{grid-template-columns:1fr}
    .principle,.principle + .principle{padding:32px 0;border-left:0;border-bottom:1px solid var(--line)}
    .principle:last-child{border-bottom:0}
    .practice-item{grid-template-columns:1fr;gap:12px}
    .practice-item .plus{display:none}
    .practice-note{display:block;margin:64px 0 20px}
  .practice-item .idx{display:none}
    .practice-item p{grid-column:1/-1;grid-row:2}
    .practice-item::before{display:none}
    .practice-item:hover h3{transform:none}
    .case{padding:28px 22px}
    .case dl{grid-template-columns:1fr;gap:4px}
    .case dd{margin-bottom:12px}
    .article{grid-template-columns:1fr;gap:8px}
    .article .arrow{display:none}
    .tg-box{padding:32px 24px}
    .facts{grid-template-columns:1fr}
    .about-grid.partner{margin-top:80px;padding-top:72px}
    .hero-actions .btn{width:100%;justify-content:center}
  }

  /* частые вопросы */
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:32px;padding:30px 0;background:none;border:0;cursor:pointer;text-align:left;font:400 clamp(18px,1.5vw,22px)/1.4 "Montserrat",Verdana,sans-serif;color:var(--green)}
  .faq-q span{transition:transform .5s cubic-bezier(.2,.7,.2,1)}
  .faq-q:hover span{transform:translateX(8px)}
  .faq-q:focus-visible{outline:2px solid var(--green);outline-offset:4px}
  .faq-icon{position:relative;flex:none;width:20px;height:20px;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;left:0;right:0;top:50%;height:1.5px;background:var(--green)}
  .faq-icon::after{transform:rotate(90deg)}
  .faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .55s cubic-bezier(.2,.7,.2,1)}
  .faq-a > div{overflow:hidden}
  .faq-a p{max-width:780px;padding:0 0 32px;color:var(--muted);font-size:16px;line-height:1.7;opacity:0;transform:translateY(-6px);transition:opacity .4s,transform .5s}
  .faq-item.open .faq-a{grid-template-rows:1fr}
  .faq-item.open .faq-a p{opacity:1;transform:none;transition-delay:.1s}
  .faq-item.open .faq-icon{transform:rotate(45deg)}
  .faq-more{display:inline-flex;align-items:center;gap:14px;margin-top:48px;font-size:15px;font-weight:500;color:var(--green);padding-bottom:6px;border-bottom:1px solid var(--line);transition:border-color .3s}
  .faq-more:hover{border-color:var(--green)}

  /* Telegram-карточка */
  .tg-card{position:relative;isolation:isolate;overflow:hidden;margin-top:110px;border-radius:24px;background:#223949;color:#fff;display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;padding:clamp(36px,5vw,72px)}
  [data-theme="dark"] .tg-card{background:#1A2E3C;box-shadow:inset 0 0 0 1px rgba(187,214,234,.2)}
  .tg-card .blob{position:absolute;z-index:-1;border-radius:50%;filter:blur(70px);opacity:.55;animation:tgBlob 14s ease-in-out infinite alternate}
  .tg-card .b1{width:460px;height:460px;background:#BBD6EA;opacity:.38;top:-180px;right:-120px}
  .tg-card .b2{width:380px;height:380px;background:#3D6E96;bottom:-200px;left:-80px;animation-duration:18s;animation-delay:-6s}
  .tg-card .b3{width:280px;height:280px;background:#7FB2D9;opacity:.3;top:30%;left:45%;animation-duration:11s;animation-delay:-3s}
  @keyframes tgBlob{0%{transform:translate(0,0) scale(1)}50%{transform:translate(-60px,40px) scale(1.15)}100%{transform:translate(40px,-30px) scale(.95)}}
  .tg-card::after{content:"";position:absolute;z-index:-1;inset:-50% -20%;background:linear-gradient(105deg,transparent 42%,rgba(255,255,255,.12) 50%,transparent 58%);transform:translateX(-60%);animation:tgShine 7s ease-in-out infinite}
  @keyframes tgShine{0%,55%{transform:translateX(-60%)}100%{transform:translateX(60%)}}
  .tg-card .eyebrow{display:inline-flex;align-items:center;gap:12px;color:#BBD6EA}
  .tg-plane{width:34px;height:34px;border-radius:50%;background:#BBD6EA;display:grid;place-items:center;color:#223949;animation:tgFloat 4s ease-in-out infinite}
  .tg-plane svg{width:16px;height:16px;margin-left:-2px}
  @keyframes tgFloat{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-4px) rotate(-6deg)}}
  .tg-card h3{color:#fff;font-size:clamp(30px,3.4vw,52px);font-weight:300;line-height:1.08;margin:22px 0 22px;letter-spacing:-.01em}
  .tg-card h3 b{font-weight:500;background:linear-gradient(90deg,#BBD6EA,#fff,#BBD6EA);background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:tgText 5s linear infinite}
  @keyframes tgText{to{background-position:200% center}}
  .tg-card > div > p{color:rgba(255,255,255,.72);font-size:16px;max-width:520px}
  .tg-perks{list-style:none;display:flex;flex-direction:column;gap:12px;margin:28px 0 36px}
  .tg-perks li{display:flex;align-items:center;gap:14px;font-size:15px;color:#fff}
  .tg-perks li::before{content:"";width:8px;height:8px;border-radius:50%;background:#BBD6EA;box-shadow:0 0 0 4px rgba(187,214,234,.18);flex:none}
  .tg-btn{position:relative;display:inline-flex;align-items:center;gap:12px;background:#BBD6EA;color:#223949;border-radius:999px;padding:18px 34px;font-size:15px;font-weight:600;transition:transform .3s,background-color .3s}
  .tg-btn::before{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 0 0 rgba(187,214,234,.55);animation:tgPulse 2.4s ease-out infinite}
  @keyframes tgPulse{0%{box-shadow:0 0 0 0 rgba(187,214,234,.55)}100%{box-shadow:0 0 0 18px rgba(187,214,234,0)}}
  .tg-btn:hover{background:#fff;transform:translateY(-2px)}
  .tg-feed{position:relative;height:430px}
  .tg-post{position:absolute;left:0;right:0;top:calc(50% - 54px);height:108px;overflow:hidden;margin:0 auto;max-width:400px;background:rgba(255,255,255,.96);color:#223949;border-radius:18px 18px 18px 6px;padding:18px 20px;box-shadow:0 20px 40px -20px rgba(0,0,0,.45);opacity:0;animation:tgPost 10.5s cubic-bezier(.45,0,.2,1) infinite}
  .tg-post small{display:flex;justify-content:space-between;font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#3A5A72;margin-bottom:8px}
  .tg-post small em{font-style:normal;font-weight:500;letter-spacing:0;text-transform:none;color:#8094A6}
  .tg-post p{font-size:15px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .tg-post:nth-child(2){animation-delay:-3.5s}.tg-post:nth-child(3){animation-delay:-7s}
  @keyframes tgPost{0%{opacity:0;transform:translateY(170px) scale(.94)}6%{opacity:1;transform:translateY(132px) scale(1)}30%{transform:translateY(132px)}36%{transform:translateY(0)}63%{transform:translateY(0);opacity:1}69%{transform:translateY(-132px);opacity:.75}88%{transform:translateY(-132px);opacity:.75}96%,100%{opacity:0;transform:translateY(-170px) scale(.96)}}
  @media (prefers-reduced-motion: reduce){.tg-card *,.tg-card::after{animation:none!important}.tg-post{opacity:1;position:relative;margin-bottom:14px}.tg-feed{height:auto}}
  @media (max-width:1100px){.tg-card{grid-template-columns:1fr;gap:40px}.tg-feed{height:420px}}
  @media (max-width:680px){.tg-card{margin-top:72px;border-radius:18px}.tg-feed{height:420px}.tg-post{height:104px;top:calc(50% - 52px)}.tg-post p{font-size:14px}.tg-btn{width:100%;justify-content:center}}

  /* страница библиотеки */
  .lib-hero{padding:72px 0 120px}
  .lib-hero h1{font-size:clamp(40px,5.4vw,80px);font-weight:200;line-height:1.02;margin:24px 0 28px}
  .lib-hero h1 b{font-weight:400}
  .lib-hero p.lead{font-size:clamp(16px,1.3vw,19px);color:var(--muted);max-width:640px}
  .lib-tools{display:flex;justify-content:space-between;align-items:center;gap:16px 24px;flex-wrap:wrap;margin:64px 0 24px}
  .lib-tools .filters{margin:0}
  .lib-search{position:relative;flex:0 1 320px}
  .lib-search svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--muted);pointer-events:none}
  .lib-search input{width:100%;border:1px solid var(--line);border-radius:999px;padding:12px 20px 12px 46px;font:inherit;font-size:14px;background:var(--chip-bg);color:var(--ink);outline:none;transition:border-color .3s}
  .lib-search input:focus{border-color:var(--green)}
  .lib-search input::placeholder{color:var(--muted)}
  .lib-list{border-bottom:1px solid var(--line)}
  .lib-row{position:relative;isolation:isolate;display:grid;grid-template-columns:220px 1fr 56px;gap:48px;align-items:center;padding:44px 0}
  .lib-row::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--line);transform-origin:left;transform:scaleX(1);transition:transform 1.1s cubic-bezier(.2,.7,.2,1)}
  .lib-row.reveal:not(.in)::before{transform:scaleX(0)}
  .lib-row::after{content:"";position:absolute;inset:0 -28px;z-index:-1;background:var(--bg-2);border-radius:6px;opacity:0;transition:opacity .5s ease}
  .lib-row:hover::after{opacity:1}
  .lr-meta{display:flex;flex-direction:column;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted)}
  .lr-new{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--on-primary);background:var(--green);padding:5px 10px;border-radius:999px}
  .lr-body h3{font-size:clamp(20px,1.9vw,28px);font-weight:400;line-height:1.3;color:var(--green);transition:transform .6s cubic-bezier(.2,.7,.2,1)}
  .lr-body p{margin-top:12px;font-size:15px;color:var(--muted);max-width:720px;transition:transform .6s cubic-bezier(.2,.7,.2,1) .04s}
  .lr-time{display:block;margin-top:16px;font-size:13px;color:var(--muted)}
  .lib-row:hover .lr-body h3,.lib-row:hover .lr-body p{transform:translateX(10px)}
  .lr-go{width:56px;height:56px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--green);transition:background-color .4s,border-color .4s,color .4s}
  .lr-go svg{width:20px;height:20px;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
  .lib-row:hover .lr-go{background:var(--green);border-color:var(--green);color:var(--on-primary)}
  .lib-row:hover .lr-go svg{transform:rotate(-45deg)}
  .lib-row.hide{display:none}
  .lib-empty{display:none;padding:60px 0;color:var(--muted);font-size:16px}
  .lib-empty.show{display:block}
  .lib-page section.library{padding:120px 0}
  .lib-page .tg-card{margin-top:0}
  [data-theme="dark"] .lib-row::after{background:rgba(187,214,234,.07)}
  @media (max-width:1100px){.lib-row{grid-template-columns:170px 1fr 48px;gap:32px}.lr-go{width:48px;height:48px}}
  @media (max-width:680px){
    .lib-hero{padding:40px 0 80px}
    .lib-search{flex-basis:100%}
    .lib-row{grid-template-columns:1fr;gap:14px;padding:32px 0}
    .lr-meta{flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px 14px}
    .lr-go{display:none}
    .lib-row::after{display:none}
    .lib-row:hover .lr-body h3,.lib-row:hover .lr-body p{transform:none}
  }

  /* кейсы: карусель со свайпом и точками на телефоне */
  .case-dots{display:none}
  @media (max-width:680px){
    .cases{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;margin:0 calc(-1 * var(--pad));padding:4px var(--pad) 6px;scroll-padding:0 var(--pad);scrollbar-width:none;-webkit-overflow-scrolling:touch}
    .cases::-webkit-scrollbar{display:none}
    .cases .case{flex:0 0 86%;scroll-snap-align:start}
    .cases .case.reveal{opacity:1;transform:none}
    .cases .case:hover{transform:none}
    .cases .case.hide{display:none}
    .case-dots{display:flex;justify-content:center;align-items:center;gap:4px;margin-top:20px}
    .case-dots[hidden]{display:none}
    .case-dots button{width:28px;height:28px;padding:0;border:0;background:none;cursor:pointer;display:grid;place-items:center}
    .case-dots button::before{content:"";width:8px;height:8px;border-radius:999px;background:var(--line);transition:width .35s cubic-bezier(.2,.7,.2,1),background-color .35s}
    .case-dots button[aria-current="true"]::before{width:24px;background:var(--green)}
  }