/* KAR SYSTEM — главная страница. Первая рабочая версия (экраны 1–2).
   ВРЕМЕННЫЕ ШРИФТЫ: Unbounded (вместо Druk Text Wide), Montserrat (вместо Mont), IBM Plex Mono (подписи).
   Заменить файлы в /fonts и названия в переменных --f-* ниже. */

@font-face{font-family:Unbounded;font-weight:600;src:url(../fonts/unbounded-cyrillic-600-normal.woff2?v=324RYeHTAo6H3Ap6) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:Unbounded;font-weight:600;src:url(../fonts/unbounded-latin-600-normal.woff2?v=GkHgtzM1cgJPDegT) format('woff2');unicode-range:U+0000-00FF,U+2190-21FF}
@font-face{font-family:Unbounded;font-weight:700;src:url(../fonts/unbounded-cyrillic-700-normal.woff2?v=703BuoDK2smaO4nD) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:Unbounded;font-weight:700;src:url(../fonts/unbounded-latin-700-normal.woff2?v=0d8xExbkkJyQ5_rP) format('woff2');unicode-range:U+0000-00FF,U+2190-21FF}
@font-face{font-family:Montserrat;font-weight:500;src:url(../fonts/montserrat-cyrillic-500-normal.woff2?v=8QtAIF-RIk0P9mli) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:Montserrat;font-weight:500;src:url(../fonts/montserrat-latin-500-normal.woff2?v=tS3nCFPtS6yC8MTM) format('woff2');unicode-range:U+0000-00FF,U+2000-21FF}
@font-face{font-family:Montserrat;font-weight:600;src:url(../fonts/montserrat-cyrillic-600-normal.woff2?v=eEmSeJxIamUEucw4) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:Montserrat;font-weight:600;src:url(../fonts/montserrat-latin-600-normal.woff2?v=n19o8jVzpN-dXOn9) format('woff2');unicode-range:U+0000-00FF,U+2000-21FF}
@font-face{font-family:Montserrat;font-weight:700;src:url(../fonts/montserrat-cyrillic-700-normal.woff2?v=q9Z8xRBdH6qs8OUJ) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:Montserrat;font-weight:700;src:url(../fonts/montserrat-latin-700-normal.woff2?v=pgsbqdqhFGi_G4Ru) format('woff2');unicode-range:U+0000-00FF,U+2000-21FF}
@font-face{font-family:'Plex Mono';font-weight:400;src:url(../fonts/ibm-plex-mono-cyrillic-400-normal.woff2?v=i8T4OTOgPCBZgnoC) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:'Plex Mono';font-weight:400;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2?v=PFpFH57CejVLDCvM) format('woff2');unicode-range:U+0000-00FF,U+2000-21FF}
@font-face{font-family:'Plex Mono';font-weight:500;src:url(../fonts/ibm-plex-mono-cyrillic-500-normal.woff2?v=_5JX8SzD8yH59Q_F) format('woff2');unicode-range:U+0400-045F}
@font-face{font-family:'Plex Mono';font-weight:500;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2?v=dWAm_3Lrdv2XGsS3) format('woff2');unicode-range:U+0000-00FF,U+2000-21FF}

:root{
  /* Палитра Brand ID */
  --graphite:#221F20; --graphite-2:#292627; --steel:#616C71; --grey:#B1B4BC;
  --sand:#E6E3E0; --salad:#DAF8D0; --mint:#79EFB3; --deep:#194138;
  /* Типографика (временные замены) */
  --f-head:Unbounded,'Arial Black',sans-serif; --f-text:Montserrat,Arial,sans-serif; --f-mono:'Plex Mono',ui-monospace,monospace;
  --pad:clamp(20px,4vw,64px);
  --hdr:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--f-text);color:var(--graphite);background:var(--sand);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--f-mono);font-weight:400;letter-spacing:.02em}

/* ============ HEADER ============ */
/* сетка экрана: левая колонка = текстовая область; вертикальная направляющая проходит через header и весь первый экран */
:root{--split:clamp(340px,38vw,600px)}
.hdr{position:absolute;top:0;left:0;right:0;z-index:20;height:var(--hdr);display:flex;align-items:stretch;border-bottom:1px solid var(--graphite)}
.hdr-logo{display:flex;align-items:center;width:var(--split);padding-left:var(--pad);border-right:1px solid var(--graphite);flex:none}
.hdr-logo svg{height:15px;display:block}
.hdr-actions{margin-left:auto;display:flex;align-items:center;gap:12px;padding-right:var(--pad)}

/* кнопки header: контур / заливка, стрелка у правого края */
.btn{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;height:46px;padding:0 16px 0 18px;min-width:170px;
     font:600 14px var(--f-text);letter-spacing:.01em;border:1px solid var(--graphite);transition:background .25s,color .25s}
.btn .arr{font-style:normal;font-size:16px;transition:transform .25s cubic-bezier(.2,.7,.2,1)}
.btn:hover .arr{transform:translateX(4px)}
.btn-line{color:var(--graphite)}
.btn-line:hover{background:var(--graphite);color:var(--mint)}
.btn-fill{background:var(--graphite);color:var(--sand);min-width:220px}
.btn-fill:hover{background:#000}
.btn-menu{display:flex;align-items:stretch;height:46px;padding:0;border:1px solid var(--graphite);background:transparent;color:var(--graphite);
          font:600 14px var(--f-text);cursor:pointer;transition:background .25s}
.btn-menu span{display:flex;align-items:center;padding:0 54px 0 18px}
.btn-menu .ico{display:flex;flex-direction:column;justify-content:center;gap:6px;width:56px;align-items:center;border-left:1px solid var(--graphite)}
.btn-menu .ico b{display:block;width:22px;height:1.5px;background:currentColor;transition:transform .3s}
.btn-menu:hover{background:rgba(34,31,32,.08)}
.btn-menu[aria-expanded=true] .ico b:first-child{transform:translateY(3.75px) rotate(45deg)}
.btn-menu[aria-expanded=true] .ico b:last-child{transform:translateY(-3.75px) rotate(-45deg)}

/* панель меню — по референсу: светлая, крупные пункты с разделителями */
.menu{position:fixed;top:12px;right:12px;bottom:12px;z-index:60;width:min(520px,calc(100vw - 24px));background:var(--sand);color:var(--graphite);
      display:flex;flex-direction:column;box-shadow:0 30px 80px -20px rgba(0,0,0,.45);
      clip-path:inset(0 0 100% 0);transition:clip-path .5s cubic-bezier(.2,.7,.2,1)}
.menu.open{clip-path:inset(0 0 0 0)}
.menu-head{display:flex;align-items:center;justify-content:space-between;padding:28px 32px 56px}
.menu-head svg{height:15px}
.menu-close{position:relative;width:40px;height:40px;border:0;background:none;cursor:pointer}
.menu-close i{position:absolute;left:4px;right:4px;top:50%;height:1.5px;background:var(--graphite);transform:rotate(45deg)}
.menu-close i+i{transform:rotate(-45deg)}
.menu-list{display:flex;flex-direction:column}
.menu-list a{padding:22px 32px;border-top:1px solid var(--graphite);font:700 clamp(28px,3vw,40px)/1 var(--f-head);transition:background .25s,padding .25s}
.menu-list a:last-child{border-bottom:1px solid var(--graphite)}
.menu-list a:hover{background:var(--mint);padding-left:40px}
.menu-foot{margin-top:auto;display:none;gap:10px;padding:24px 32px}

/* ============ ЭКРАН 1 ============ */
.s1-pin{position:relative;height:calc(100vh + 70vh);background:var(--mint)}
.s1{position:sticky;top:0;height:100vh;min-height:620px;background:var(--mint);overflow:hidden}
.s1-grid{position:absolute;top:var(--hdr);left:0;right:0;bottom:0;display:grid;grid-template-columns:var(--split) 1fr}
.s1-text{display:flex;flex-direction:column;justify-content:space-between;padding:clamp(28px,5vh,64px) clamp(20px,2.4vw,40px) clamp(28px,5vh,56px) var(--pad);border-right:1px solid var(--graphite)}
.s1-title{margin:0}
.s1-title svg{width:100%;max-width:520px;display:block;overflow:visible}
.s1-tag{margin:18px 0 36px;font-size:14px;text-transform:uppercase;letter-spacing:.18em}
.s1-lead{margin:0;font:600 clamp(19px,1.7vw,26px)/1.32 var(--f-text);max-width:28ch}
.s1-flow{border-top:1px solid var(--graphite);padding-top:18px;max-width:46ch}
.s1-flow p{margin:0 0 8px;font-size:15px;line-height:1.5}
.s1-flow .mono{font-size:13px;opacity:.75;margin:0}
/* чертёжное поле: мелкая «миллиметровка» из тонких белых пунктирных линий + крупный шаг */
.s1-stage{position:relative;display:flex;align-items:center;justify-content:center;padding:clamp(20px,3vw,48px);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cpath d='M0 .5H100M.5 0V100' stroke='%23fff' stroke-opacity='.7' stroke-width='1'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20'%3E%3Cpath d='M0 .5H20M.5 0V20' stroke='%23fff' stroke-opacity='.55' stroke-width='.8' stroke-dasharray='2 2'/%3E%3C/svg%3E");
  background-position:-1px -1px}
#sys{width:100%;height:auto;max-height:calc(100vh - var(--hdr) - 80px);display:block;overflow:visible}
.s1-hint{position:absolute;right:var(--pad);bottom:22px;font-size:12px;opacity:.7;transition:opacity .3s}

/* входная анимация */
.intro{position:fixed;inset:0;z-index:50;pointer-events:none;background:var(--graphite);
       -webkit-mask-image:radial-gradient(circle at var(--fx,50%) var(--fy,50%),transparent var(--r,0px),#000 calc(var(--r,0px) + 1px));
               mask-image:radial-gradient(circle at var(--fx,50%) var(--fy,50%),transparent var(--r,0px),#000 calc(var(--r,0px) + 1px))}
.intro-sign{position:fixed;z-index:51;width:140px;height:140px;left:50%;top:50%;margin:-70px 0 0 -70px;pointer-events:none;overflow:visible}
.intro.done,.intro-sign.done{display:none}
.s1 .hdr,.s1-text>*,.s1-hint,.s1-stage{transition:opacity .6s}
body.pre .s1 .hdr,body.pre .s1-tag,body.pre .s1-lead,body.pre .s1-flow,body.pre .s1-hint{opacity:0}

/* линии схемы */
#sys .ln{fill:none;stroke:var(--graphite);stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
#sys .thin{stroke-width:.8;opacity:.55}
#sys .dash{stroke-dasharray:3 4}
#sys .srf{fill:var(--mint);stroke:var(--graphite);stroke-width:1.2;stroke-linejoin:round;transition:fill .5s}
#sys .frame{fill:none;stroke:var(--graphite);stroke-width:1}
#sys text{font-family:var(--f-mono);font-size:11px;fill:var(--graphite)}
#sys .lbl{font-family:var(--f-text);font-weight:700;font-size:13px;letter-spacing:.14em}
#sys .on .srf{fill:var(--graphite)}
#sys .on .ln.inner{stroke:var(--mint)}
#sys .card-bg{fill:var(--mint);stroke:var(--graphite);stroke-width:1}
#sys .head{fill:var(--graphite)}

/* ============ ЭКРАН 2 ============ */
.s2{position:relative;background:var(--sand);padding:120px var(--pad) 160px}
.s2-grid{position:relative;display:grid;grid-template-columns:11fr 9fr;gap:clamp(28px,4vw,80px);align-items:stretch}
.guide{position:absolute;left:calc(-1 * var(--pad));right:calc(-1 * var(--pad));height:1px;background:rgba(34,31,32,.22);transform-origin:left;transform:scaleX(var(--g,0))}
.g-top{top:-40px}.g-bot{bottom:-40px}
.g-mid{left:calc(55% + 10px);right:auto;top:-40px;bottom:-40px;width:1px;height:auto;transform-origin:top;transform:scaleY(var(--g,0))}
.s2-photo{position:relative;margin:0;min-height:min(78vh,760px);overflow:hidden;background:#cfccc8;
          clip-path:inset(var(--ci,42%) var(--cx,44%) var(--ci,42%) var(--cx,44%));cursor:crosshair}
.s2-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05)}
.s2-accent{position:absolute;left:38%;top:30%;width:26%;height:34%;background:var(--mint);mix-blend-mode:multiply;opacity:.85}
.xy{position:absolute;left:14px;bottom:12px;font-size:11px;color:var(--sand);background:rgba(34,31,32,.75);padding:4px 7px;opacity:0;transition:opacity .25s}
.cross{position:absolute;background:rgba(230,227,224,.75);opacity:0;transition:opacity .25s;pointer-events:none}
.cross-x{left:0;right:0;height:1px}.cross-y{top:0;bottom:0;width:1px}
.s2-photo:hover .xy,.s2-photo:hover .cross{opacity:1}
.s2-text{display:flex;flex-direction:column;justify-content:center;padding:20px 0}
.s2-text>*{opacity:var(--t,0);transform:translateY(calc((1 - var(--t,0)) * 14px))}
.s2-title{margin:0;font:700 clamp(28px,3.4vw,52px)/1 var(--f-head);letter-spacing:.01em}
.s2-desc{margin:14px 0 34px;font-size:15px}
.s2-body{margin:0 0 18px;font-size:17px;line-height:1.6;max-width:52ch}
.s2-scope{margin:0 0 34px;font-size:15px;line-height:1.5;color:var(--steel)}
.cells{list-style:none;margin:0 0 22px;padding:0;display:grid;grid-template-columns:repeat(3,1fr);border:1px solid rgba(34,31,32,.25)}
.cell{position:relative;padding:14px 14px 16px;border-left:1px solid rgba(34,31,32,.25);cursor:default;outline:none}
.cell:first-child{border-left:0}
.cell svg{width:100%;height:auto;display:block;margin-bottom:10px}
.cell span{font-size:13px;font-weight:600;letter-spacing:.02em}
.cell .ln{fill:none;stroke:var(--graphite);stroke-width:1;stroke-linejoin:round;stroke-linecap:round}
.cell .srf{fill:transparent;stroke:var(--graphite);stroke-width:1;stroke-linejoin:round;transition:fill .35s}
.cell:hover .srf,.cell:focus .srf,.cell.on .srf{fill:var(--mint)}
.geo{position:relative;display:inline-flex;align-items:center;gap:8px;margin:0;font-size:15px;font-weight:600;cursor:default;outline:none;width:max-content}
.geo-ill{position:absolute;left:100%;top:50%;width:96px;margin:-34px 0 0 14px;opacity:0;transform:translateX(-6px);transition:opacity .35s,transform .35s;pointer-events:none}
.geo-ill .island{fill:var(--mint);stroke:var(--graphite);stroke-width:1}
.geo-ill .sun{fill:var(--salad);stroke:var(--graphite);stroke-width:1}
.geo-ill .waves{fill:none;stroke:var(--graphite);stroke-width:1}
.geo:hover .geo-ill,.geo:focus .geo-ill,.geo.on .geo-ill{opacity:1;transform:none}

.next{height:30vh;background:var(--graphite)}

/* ============ КОМПАКТНАЯ ПАНЕЛЬ ============ */
.dock{position:fixed;left:50%;bottom:18px;z-index:30;display:flex;gap:6px;padding:6px;border-radius:20px;transform:translateX(-50%);
      background:linear-gradient(180deg,#302C2D,#262324);border:1px solid rgba(255,255,255,.06);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 16px 40px -14px rgba(0,0,0,.55);opacity:var(--dock,0);pointer-events:none}
.dock.live{pointer-events:auto}
.dock-brand{display:flex;align-items:center;justify-content:center;padding:0 16px;border-radius:14px;background:#1E1B1C;height:44px}
.dock-brand svg{height:16px;display:block}
.dock-tools{display:flex;gap:6px}
.dock-btn{position:relative;width:132px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:11px;overflow:hidden;
          background:linear-gradient(180deg,#373334,#2D2A2B);border:1px solid rgba(255,255,255,.06);
          color:var(--grey);font:600 11px var(--f-text);letter-spacing:.12em;transition:background .45s,color .45s}
.dock-btn.on{background:linear-gradient(180deg,#E8FCE2,#D3F5C7);color:var(--graphite)}
.dock-btn.final{background:linear-gradient(180deg,#96F7C6,#6FE7AA);color:var(--graphite)}

/* элементы, которые перелетают из схемы в панель */
.mover{position:fixed;z-index:29;border-radius:12px;pointer-events:none;display:flex;align-items:center;justify-content:center;overflow:hidden;
       font:600 11px var(--f-text);letter-spacing:.12em;color:var(--grey);will-change:left,top,width,height}

/* ============ АДАПТИВ ============ */
@media (max-width:1100px){
  .hdr .btn-line{display:none}
  .hdr .btn-fill{min-width:0}
  .s2-grid{grid-template-columns:1fr}
  .g-mid{display:none}
  .s2-photo{min-height:60vh}
}
@media (max-width:720px){
  :root{--hdr:64px}
  .s1-pin{height:auto}
  .s1{position:relative;height:auto;min-height:100vh}
  .s1-grid{position:relative;top:auto;margin-top:var(--hdr);grid-template-columns:1fr}
  .s1-text{border-right:0;border-bottom:1px solid var(--graphite);gap:32px}
  .s1-stage{min-height:420px}
  .hdr-logo{width:auto;border-right:0;padding-right:16px}
  .hdr-actions{padding-right:12px}
  .hdr .btn{display:none}
  .btn-menu span{padding:0 18px}
  .btn-menu .ico{width:46px}
  .menu-foot{display:grid}
  .s1{padding-bottom:110px}
  .s1-tag{margin-bottom:26px}
  .cells{grid-template-columns:1fr}
  .cell{border-left:0;border-top:1px solid rgba(34,31,32,.25);display:grid;grid-template-columns:110px 1fr;align-items:center;gap:14px}
  .cell:first-child{border-top:0}
  .cell svg{margin:0}
  .xy,.cross{display:none}
  .geo-ill{position:static;margin:0 0 0 8px;width:64px;opacity:1;transform:none}
  .dock{left:8px;right:8px;transform:none;overflow-x:auto;bottom:10px}
  .dock-btn{width:auto;padding:0 14px;flex:0 0 auto;font-size:10px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .s1-pin{height:auto}.s1{position:relative;height:auto;min-height:100vh}
  .s2-photo{clip-path:none!important}
  .s2-text>*{opacity:1!important;transform:none!important}
  .guide{transform:none!important}
}