/* Performance Engineering — общий стиль сайта */
:root{
  --bg:#F4F2EE; --paper:#FBFAF8; --ink:#0E0E0D; --text:#2A2926; --muted:#77746D; --line:#E3DFD7;
  --gold:#E8B730; --gold-deep:#B88A12;
  --wide:"Unbounded","Arial Black",sans-serif;
  --sans:"Manrope","Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --t-white:url("../tex/marble-white.jpg"); --t-black:url("../tex/marble-black.jpg"); --t-gold:url("../tex/marble-gold.jpg");
  --t-obs:url("../tex/obsidian.jpg"); --t-bas:url("../tex/granite.jpg"); --t-metal:url("../tex/metal-brushed.jpg"); --t-contour:url("../tex/contour-path.jpg"); --t-trav:url("../tex/marble-cream.jpg");
  --hex:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 0 L56 16 V48 L28 64 L0 48 V16 Z M28 64 V97' fill='none' stroke='%23E4E0D8' stroke-width='1'/%3E%3C/svg%3E");
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg) var(--hex);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img,svg{max-width:100%}
.frame{max-width:1320px;margin:0 auto;background:var(--paper);border-left:1px solid var(--line);border-right:1px solid var(--line);min-height:100vh;overflow-x:clip}
.wrap{padding-left:clamp(20px,4vw,56px);padding-right:clamp(20px,4vw,56px)}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.02em}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* ---------- Nav ---------- */
nav.top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(20px,4vw,56px);position:sticky;top:0;z-index:50;background:rgba(251,250,248,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);color:var(--ink)}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink)}
.logo img.mark{height:32px;width:auto;display:block}
.logo img.word{height:26px;width:auto;display:block}
.navlinks{display:flex;gap:26px;font-size:14px;font-weight:600}
.navlinks a{text-decoration:none;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent;transition:color .2s}
.navlinks a:hover{color:var(--ink)}
.navlinks a.active{color:var(--ink);border-bottom-color:var(--gold)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;cursor:pointer;align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:var(--ink);position:relative;content:""}
.burger span::before{position:absolute;top:-6px}.burger span::after{position:absolute;top:6px}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 14px var(--sans);padding:12px 22px;border-radius:999px;text-decoration:none;border:1px solid var(--ink);color:var(--ink);background:transparent;cursor:pointer;transition:background .2s,color .2s,transform .2s}
.btn:hover{background:var(--ink);color:#fff}
.btn.solid{background:var(--ink);color:#fff}.btn.solid:hover{background:#2b2a27}
.btn.gold{background:var(--gold);border-color:var(--gold);color:var(--ink)}.btn.gold:hover{background:#f3c545;color:var(--ink)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}

/* ---------- Type ---------- */
h1,h2,h3,h4{color:var(--ink);margin:0}
h1{font-weight:300;font-size:clamp(30px,4.3vw,54px);line-height:1.06;letter-spacing:-.02em;text-transform:uppercase}
h1 strong,h2 strong{font-weight:800}
h1 .hash{font-family:var(--mono);font-weight:400;color:var(--gold-deep);font-size:.7em}
h2{font-weight:300;font-size:clamp(26px,3vw,44px);line-height:1.1;letter-spacing:-.02em;margin-bottom:16px;max-width:980px}
h3{font-weight:800;font-size:20px;line-height:1.2;letter-spacing:-.01em}
p{margin:0 0 14px}
.eyebrow{display:flex;align-items:center;gap:12px;font-family:var(--wide);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--gold)}
.lede{font-size:18px;max-width:680px;margin:0}
section.block{padding-top:88px;padding-bottom:88px;border-bottom:1px solid var(--line)}

/* ---------- Hero (main) ---------- */
.hero{padding-top:44px}
.hero-top{display:grid;grid-template-columns:1fr 270px;gap:40px;align-items:start}
.aside-note{font-size:14px;color:var(--muted);padding-top:46px}
.aside-note b{display:block;color:var(--gold-deep);font-weight:700;margin-bottom:4px}
.slabs{display:flex;gap:12px;height:clamp(360px,40vw,450px);margin-top:36px}
.panel{position:relative;flex:0 0 66px;border-radius:40px;overflow:hidden;cursor:pointer;transition:flex .6s cubic-bezier(.2,.8,.2,1),border-radius .6s;background:var(--t-white) center/cover;border:1px solid #DAD6CE;color:var(--ink)}
.panel.dark{background:var(--t-obs) center/cover;border-color:#1A1A18;color:#EDEAE3}
.panel.basalt{background:var(--t-bas) center/cover;border-color:#26262A;color:#EDEAE3}
.panel.gold{background:var(--t-gold) center/cover;border-color:#1A1A18;color:#EDEAE3}
.panel::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.35),transparent 40%,transparent 62%,rgba(255,255,255,.1));pointer-events:none}
.panel.dark::after,.panel.basalt::after,.panel.gold::after{background:linear-gradient(120deg,rgba(255,255,255,.10),transparent 32%,transparent 70%,rgba(232,183,48,.07))}
.panel.open{flex:1 1 auto;border-radius:28px}
.panel .label{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-90deg);white-space:nowrap;font-family:var(--wide);font-size:11px;letter-spacing:.2em;transition:opacity .3s;text-transform:uppercase}
.panel.open .label{opacity:0}
.panel .num{position:absolute;left:50%;transform:translateX(-50%);bottom:12px;width:40px;height:40px;border-radius:50%;background:var(--paper);display:grid;place-items:center;color:var(--ink);z-index:2;box-shadow:0 2px 8px rgba(0,0,0,.18)}
.panel .num svg{width:21px;height:21px}
.panel.open .num{left:auto;right:14px;transform:none}
@media (hover:hover){.panel{transition:flex 1.05s cubic-bezier(.22,.7,.2,1),border-radius 1.05s}.panel .body{transition:opacity .5s .35s!important}.panel .label{transition:opacity .5s}}
.panel .body{position:absolute;inset:0;padding:26px 28px;display:flex;flex-direction:column;justify-content:space-between;opacity:0;transition:opacity .35s .15s;pointer-events:none;min-width:320px;z-index:1}
.panel.open .body{opacity:1;pointer-events:auto}
.tags{display:flex;flex-wrap:wrap;gap:8px;max-width:90%}
.tag{font-size:12.5px;padding:5px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.07);backdrop-filter:blur(4px)}
.panel:not(.dark):not(.basalt):not(.gold) .tag{border-color:rgba(0,0,0,.18);background:rgba(255,255,255,.6)}
.panel h3{font-weight:800;font-size:26px;line-height:1.08;margin:0 0 10px;text-transform:uppercase;color:var(--gold)}
.panel:not(.dark):not(.basalt):not(.gold) h3{color:var(--gold-deep)}
.panel p{margin:0 0 16px;max-width:390px;font-size:15px}
.panel .motto{font-size:20px;letter-spacing:.03em;display:flex;gap:10px;align-items:center}
.pill-btn{display:inline-flex;gap:6px;font-size:13px;font-weight:700;padding:9px 16px;border-radius:999px;background:#fff;color:var(--ink);text-decoration:none}
.proof-row{display:flex;justify-content:space-between;align-items:center;gap:14px 24px;flex-wrap:wrap;padding:22px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:700;color:var(--ink)}
.proof-row span{display:flex;align-items:center;gap:10px}
.proof-row i{width:6px;height:6px;background:var(--gold);border-radius:50%;display:inline-block;flex:none}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:1.2fr repeat(4,1fr);gap:14px;align-items:center}
.stats .intro{font-size:26px;line-height:1.15;color:var(--ink);letter-spacing:-.01em;font-weight:300}
.stat{border:1px solid var(--line);border-radius:18px;padding:16px 18px;background:#fff}
.stat small{display:block;font-size:12.5px;color:var(--muted);line-height:1.3;margin-bottom:6px}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.05}

/* ---------- Solutions ---------- */
.sgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px}
.scard{border-radius:22px;padding:22px;min-height:230px;display:flex;flex-direction:column;position:relative;overflow:hidden;background:var(--t-white) center/cover;border:1px solid var(--line)}
.scard.d{background:var(--t-obs) center/cover;color:#E8E4DB;border-color:#191917}
.scard.b{background:var(--t-bas) center/cover;color:#E8E4DB;border-color:#26262A}
.scard.t{background:var(--t-trav) center/cover}
.scard.g{background:var(--t-gold) center/cover;color:#E8E4DB;border-color:#191917}
.scard .ic{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.7);display:grid;place-items:center;margin-bottom:auto}
.scard.d .ic,.scard.b .ic,.scard.g .ic{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2)}
.scard h3{font-size:17px;margin:26px 0 8px;color:inherit}
.scard p{font-size:13.5px;margin:0;opacity:.85;line-height:1.5}

/* ---------- Case component (tabs) ---------- */
.case{display:grid;grid-template-columns:1.08fr .92fr;border-radius:32px;overflow:hidden;border:1px solid var(--line);background:#fff}
.case .visual{background:var(--t-obs) center/cover;padding:26px;color:#EDEAE3;display:flex;flex-direction:column;gap:16px;min-width:0}
.vtop{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.tabs{display:inline-flex;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:4px;flex-wrap:wrap}
.tabs button{font:700 12.5px var(--sans);color:#CFCBC2;background:none;border:0;padding:8px 15px;border-radius:999px;cursor:pointer}
.tabs button.on{background:var(--gold);color:var(--ink)}
.views{display:grid;flex:1}
.view{grid-area:1/1;transition:opacity .35s;min-width:0}
.view.hide{opacity:0;visibility:hidden}
.view svg{display:block;width:100%;height:auto}
.caption{font-size:11.5px;color:#8F8B82;margin-top:8px}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:11.5px;color:#B8B3A8;margin-top:12px}
.legend span{display:flex;align-items:center;gap:6px}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block;border:1.5px solid}
.case .info{padding:34px 34px 28px;display:flex;flex-direction:column;min-width:0}
.case .info .ind{font-size:13px;color:var(--gold-deep);font-weight:700;margin-bottom:12px}
.case .info h3{font-size:28px;line-height:1.08;font-weight:800;margin-bottom:12px;letter-spacing:-.02em}
.spec{margin:auto 0 0;border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:118px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.spec .k{color:var(--muted);font-family:var(--mono);font-size:11.5px;padding-top:2px;text-transform:uppercase}
/* impact view (html) */
.impact{display:flex;flex-direction:column;gap:18px;justify-content:center;height:100%}
.impact .hero-n{font-weight:800;font-size:clamp(46px,7vw,84px);line-height:.95;letter-spacing:-.04em;color:var(--gold)}
.impact .hero-l{font-size:16px;color:#E8E4DB;max-width:360px;margin-top:6px}
.ba{display:grid;gap:10px}
.ba .row{display:grid;grid-template-columns:90px 1fr;gap:12px;align-items:center;font-size:13px;color:#CFCBC2}
.ba .bar{height:26px;border-radius:8px;position:relative;background:rgba(255,255,255,.07)}
.ba .bar i{position:absolute;left:0;top:0;bottom:0;border-radius:8px;display:flex;align-items:center;padding-left:10px;font-style:normal;font-size:12px;font-weight:700;white-space:nowrap}
.ba .b1 i{background:#4a4740;color:#EDEAE3}.ba .b2 i{background:var(--gold);color:var(--ink)}
.ba .row:first-child{display:block;color:#EDEAE3;font-weight:700}
.ba .cap{font-size:11.5px;color:#8F8B82}

/* ---------- KPI strip (case page) ---------- */
.kpis{display:grid;grid-template-columns:1.1fr repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:26px;overflow:hidden;background:#fff;margin-top:36px}
.kpis>div{padding:26px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}
.kpis>div:last-child{border-right:0}
.kpis .big{background:var(--t-obs) center/cover;color:#EDEAE3}
.kpis .big b{font-size:clamp(34px,4.6vw,56px);font-weight:800;color:var(--gold);line-height:1;letter-spacing:-.03em}
.kpis .big span{font-size:14px;margin-top:8px;color:#D6D1C4}
.kpis b{font-size:26px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.1}
.kpis span{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.4}
.ph{border:1.5px dashed var(--gold-deep)!important;background:rgba(232,183,48,.08)!important}
.ph-inline{font-family:var(--mono);font-size:.88em;border:1.5px dashed var(--gold-deep);background:rgba(232,183,48,.1);padding:1px 8px;border-radius:6px;color:#6b5210;white-space:nowrap}

/* ---------- Case cards ---------- */
.ccards{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:16px;margin-top:40px}
.ccard{border-radius:26px;padding:26px;min-height:320px;display:flex;flex-direction:column;position:relative;overflow:hidden;text-decoration:none;transition:transform .3s;background:var(--t-white) center/cover;border:1px solid var(--line);color:var(--ink)}
.ccard:hover{transform:translateY(-5px)}
.ccard.d{background:var(--t-obs) center/cover;color:#E8E4DB;border-color:#191917}
.ccard.b{background:var(--t-bas) center/cover;color:#E8E4DB;border-color:#26262A}
.ccard.g{background:var(--t-gold) center/cover;color:#E8E4DB;border-color:#191917}
.ccard.t{background:var(--t-trav) center/cover}
.ccard.k{background:var(--t-black) center/cover;color:#E8E4DB;border-color:#191917}
.ccard .ind{font-family:var(--mono);font-size:11.5px;opacity:.75;text-transform:uppercase;letter-spacing:.04em}
.ccard h3{font-size:20px;margin:14px 0 10px;color:inherit;font-weight:800}
.ccard p{font-size:14px;opacity:.82;margin:0}
.ccard .m{margin-top:auto;padding-top:18px;display:flex;justify-content:space-between;align-items:flex-end;gap:12px}
.ccard .m b{font-size:32px;font-weight:800;letter-spacing:-.03em;line-height:1;color:var(--gold-deep)}
.ccard.d .m b,.ccard.b .m b,.ccard.g .m b,.ccard.k .m b{color:var(--gold)}
.ccard .m small{display:block;font-size:12.5px;opacity:.75;margin-top:4px;max-width:200px;line-height:1.3}
.ccard .go{width:38px;height:38px;border-radius:50%;background:var(--gold);color:var(--ink);display:grid;place-items:center;flex:none;font-weight:700}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}
.filters button{font:700 13px var(--sans);padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text);cursor:pointer}
.filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.ccard.gone{display:none}

/* ---------- Process / principles ---------- */
.process{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:24px;overflow:hidden;background:#fff;margin-top:40px}
.step{padding:24px 20px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step .n{font-family:var(--wide);font-size:11px;letter-spacing:.16em;color:var(--gold-deep)}
.step h4{font-size:17px;margin:12px 0 8px;font-weight:800}
.step p{font-size:13.5px;color:var(--muted);margin:0}
.step .bar{position:absolute;left:0;bottom:0;height:3px;background:var(--gold)}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:22px;border-radius:26px;overflow:hidden;background:var(--t-obs) center/cover;color:#E8E4DB}
.trio>div{padding:28px 26px;border-right:1px solid rgba(255,255,255,.1)}
.trio>div:last-child{border-right:0}
.trio .k{font-family:var(--wide);font-size:10px;letter-spacing:.2em;color:var(--gold);text-transform:uppercase}
.trio h4{color:#fff;font-size:20px;margin:12px 0 8px;font-weight:800}
.trio p{font-size:14px;margin:0;opacity:.8}
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:36px}
.pc{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff}
.pc .n{font-family:var(--mono);font-size:12px;color:var(--gold-deep)}
.pc h4{font-size:18px;margin:10px 0 8px;font-weight:800}
.pc p{font-size:14px;color:var(--muted);margin:0}

/* ---------- Split (ИТМО teaser etc.) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;border-radius:32px;overflow:hidden;margin-top:40px;min-height:380px}
.split>div{padding:42px 38px}
.split .l{background:var(--t-trav) center/cover}
.split .r{background:var(--t-bas) center/cover;color:#E8E4DB}
.split h3{font-size:24px;margin-bottom:14px;color:inherit}
.split .r h3{color:var(--gold)}
.split ul{list-style:none;margin:0;padding:0}
.split li{padding:12px 0;border-top:1px solid rgba(0,0,0,.12);font-size:15px}
.split .r li{border-top-color:rgba(255,255,255,.14)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text)}

/* ---------- Partners ---------- */
.partners{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:36px}
.partner{border:1px solid var(--line);border-radius:20px;height:110px;display:grid;place-items:center;background:#fff;font-weight:800;font-size:20px;letter-spacing:-.01em;color:var(--ink);text-align:center;padding:10px}
.partner small{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:2px}

/* ---------- CTA / footer ---------- */
.cta{margin:88px 0;border-radius:36px;background:var(--t-black) center/cover;color:#E8E4DB;padding:clamp(34px,6vw,70px);position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(232,183,48,.22),transparent 65%)}
.cta h2{color:#fff}.cta .eyebrow{color:#B8B3A8}
.cta .row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;position:relative;z-index:1}
.cta .btn:not(.gold){border-color:#E8E4DB;color:#E8E4DB}.cta .btn:not(.gold):hover{background:#E8E4DB;color:var(--ink)}
footer{background:var(--t-obs) center/cover;color:#B8B3A8;padding:44px clamp(20px,4vw,56px) 28px;font-size:14px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
footer h5{margin:0 0 12px;font-family:var(--wide);font-size:10px;letter-spacing:.2em;color:var(--gold);text-transform:uppercase;font-weight:400}
footer a{display:block;text-decoration:none;color:#D6D1C4;padding:3px 0}footer a:hover{color:#fff}
.fbottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;font-size:13px}
footer img{height:30px;margin-bottom:14px}

/* ---------- Inner page hero ---------- */
.phero{padding-top:46px;padding-bottom:20px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--ink)}
.phero .lede{margin-top:18px}
.phero .chips{margin-top:20px}
.pnav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:40px}
.pnav a{border:1px solid var(--line);border-radius:20px;padding:20px 22px;text-decoration:none;background:#fff;transition:border-color .2s}
.pnav a:hover{border-color:var(--ink)}
.pnav small{display:block;font-size:12px;color:var(--muted);font-family:var(--mono);text-transform:uppercase}
.pnav b{font-size:16px}
.pnav a:last-child{text-align:right}
.two{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:36px}
.two ul{padding-left:20px;margin:0}.two li{margin-bottom:10px}
.timeline{list-style:none;margin:26px 0 0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 22px 26px}
.timeline li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--paper);border:2px solid var(--ink)}
.timeline li:last-child::before{background:var(--gold);border-color:var(--gold)}
.timeline b{color:var(--ink)}

/* ---------- Contacts / form ---------- */
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:36px}
.cbox{border:1px solid var(--line);border-radius:26px;padding:30px;background:#fff}
.cbox dl{margin:0}.cbox dt{font-family:var(--mono);font-size:11.5px;color:var(--muted);text-transform:uppercase;margin-top:18px}
.cbox dd{margin:4px 0 0;font-size:17px;font-weight:600}
form label{display:block;font-size:13px;font-weight:700;margin:16px 0 6px}
form input,form textarea{width:100%;font:500 15px var(--sans);padding:13px 15px;border:1px solid var(--line);border-radius:14px;background:var(--paper);color:var(--ink)}
form textarea{min-height:120px;resize:vertical}
form input:focus,form textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}

/* reveal */
.rv{opacity:0;transform:translateY(16px);transition:opacity .7s,transform .7s}
.rv.in{opacity:1;transform:none}

@media (max-width:1000px){
  .hero-top,.case,.split,.two,.cgrid{grid-template-columns:1fr}
  .aside-note{padding-top:0}
  .stats{grid-template-columns:1fr 1fr}.stats .intro{grid-column:1/-1}
  .sgrid,.partners{grid-template-columns:1fr 1fr}
  .pgrid,.trio{grid-template-columns:1fr}
  .trio>div{border-right:0;border-bottom:1px solid rgba(255,255,255,.1)}
  .process{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}
  .kpis{grid-template-columns:1fr 1fr}.kpis>div{border-bottom:1px solid var(--line)}
  .fgrid{grid-template-columns:1fr 1fr}
  .navlinks{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);flex-direction:column;padding:12px clamp(20px,4vw,56px) 20px;border-bottom:1px solid var(--line);gap:4px}
  .navlinks.open{display:flex}.navlinks a{padding:12px 0}
  .burger{display:flex}
  nav.top .btn{display:none}
}
@media (max-width:640px){
  .slabs{flex-direction:column;height:auto}
  .panel{flex:0 0 58px;border-radius:30px}.panel.open{flex:0 0 400px}
  .panel .label{left:26px;top:50%;transform:translateY(-50%)}
  .panel .num,.panel.open .num{left:auto;right:12px;top:13px;bottom:auto;transform:none}
  .panel .body{min-width:0}
  .sgrid,.partners,.stats,.kpis,.fgrid{grid-template-columns:1fr}
  .logo img.word{display:none}
  .pnav{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.rv{opacity:1;transform:none}}

/* =====================  v2: explorer, widgets, research  ===================== */
.off{display:none!important}
.band{background:var(--t-obs) center/cover;color:#E8E4DB;border-bottom:0!important}
.band h2{color:#fff}.band .lede{color:#CFCBC2}.band .eyebrow{color:#A9A498}
.explorer{display:grid;grid-template-columns:310px minmax(0,1fr);gap:22px;margin-top:40px;align-items:start}
.ex-rail{display:flex;flex-direction:column;gap:6px;max-height:760px;overflow:auto;padding-right:4px;scrollbar-width:thin;scrollbar-color:#3a372f transparent}
.ex-rail button{all:unset;box-sizing:border-box;cursor:pointer;display:grid;grid-template-columns:1fr auto;gap:2px 10px;align-items:center;padding:12px 16px;border-radius:16px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.03);color:#CFCBC2;transition:background .25s,border-color .25s}
.ex-rail button:hover{background:rgba(255,255,255,.07)}
.ex-rail button:focus-visible{outline:2px solid var(--gold)}
.ex-rail button.on{background:rgba(232,183,48,.12);border-color:var(--gold);color:#fff}
.ex-rail small{grid-column:1;font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.04em;color:#8F8B82}
.ex-rail b{grid-column:1;font-size:14.5px;font-weight:700;line-height:1.25}
.ex-rail em{grid-column:2;grid-row:1/3;font-style:normal;font-weight:800;font-size:17px;color:var(--gold);letter-spacing:-.02em;white-space:nowrap}
.ex-stage .case{border-color:rgba(255,255,255,.12)}
.mini-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 20px}
.mini-kpis div{border:1px solid var(--line);border-radius:14px;padding:12px 12px 10px;background:var(--paper)}
.mini-kpis b{display:block;font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.1}
.mini-kpis span{font-size:11.5px;color:var(--muted);line-height:1.3;display:block;margin-top:4px}
.mini-kpis .ph b{color:#8a6a10}
.play{font:700 12px var(--sans);color:var(--ink);background:var(--gold);border:0;border-radius:999px;padding:6px 14px;cursor:pointer;margin-left:auto}
.play.stop{background:#fff}
.legend{align-items:center}
.anode rect{transition:stroke-width .3s,filter .3s}
.anode.act rect{stroke-width:3;filter:drop-shadow(0 0 7px rgba(232,183,48,.75))}
.anode.act text{fill:#fff}

/* domains */
.domains{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px}
.dom{position:relative;border-radius:22px;min-height:150px;padding:20px;display:flex;flex-direction:column;justify-content:flex-end;text-decoration:none;overflow:hidden;background:var(--t-white) center/cover;border:1px solid var(--line);color:var(--ink);transition:transform .3s}
.dom:hover{transform:translateY(-4px)}
.dom.d{background:var(--t-obs) center/cover;color:#E8E4DB;border-color:#191917}.dom.g{background:var(--t-gold) center/cover;color:#E8E4DB;border-color:#191917}.dom.b{background:var(--t-bas) center/cover;color:#E8E4DB;border-color:#26262A}.dom.t{background:var(--t-trav) center/cover}.dom.k{background:var(--t-black) center/cover;color:#E8E4DB}
.dom b{font-size:18px;font-weight:800;letter-spacing:-.01em}.dom span{font-family:var(--mono);font-size:11.5px;opacity:.7;margin-top:4px}
.dom i{position:absolute;right:16px;top:16px;width:32px;height:32px;border-radius:50%;background:var(--gold);color:var(--ink);display:grid;place-items:center;font-style:normal;font-weight:700}

/* widgets */
.widget{display:flex;flex-direction:column;gap:12px}
.widget canvas{width:100%;display:block;border-radius:14px;background:#05070c;touch-action:none}
.wg-bar{display:flex;gap:8px;flex-wrap:wrap}
.wgt{font:700 12px var(--sans);padding:7px 13px;border-radius:999px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.05);color:#CFCBC2;cursor:pointer}
.wgt.on{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.wg-info{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#D6D1C4}
.wg-info b{font-family:var(--mono);font-size:12px;color:var(--gold)}
.wg-info .st{color:#fff}.wg-info .warn{color:#ff8f7a;font-weight:700}
.mol-side{display:flex;flex-direction:column;gap:10px}
.bars{display:flex;flex-direction:column;gap:9px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.bars label{display:flex;justify-content:space-between;font-size:11.5px;color:#CFCBC2}
.bars .b{height:6px;border-radius:3px;background:rgba(255,255,255,.1);overflow:hidden;margin-top:3px}
.bars .b i{display:block;height:100%;background:var(--gold);width:0;transition:width .6s}
.mol-chips{display:flex;flex-direction:column;gap:6px}

/* flowchart / research */
.fchart{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.fchart svg{display:block;width:100%;height:auto;max-height:640px}
.fnode{cursor:pointer;outline:none}
.fnode rect,.fnode ellipse{transition:stroke-width .25s,filter .25s}
.fnode:hover rect,.fnode:focus-visible rect{stroke-width:2.6}
.fnode.on rect{stroke-width:3.2;filter:drop-shadow(0 0 8px rgba(232,183,48,.8))}
.fdetail{padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);min-height:96px}
.fdetail .fd-i{font-family:var(--mono);font-size:11px;color:var(--gold)}
.fdetail .fd-t{font-size:16px;font-weight:800;color:#fff;margin:2px 0 4px}
.fdetail .fd-d{font-size:13.5px;color:#D6D1C4;margin:0}
.fbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:11.5px;color:#A9A498}
.fbar .l{display:flex;gap:6px;align-items:center}.fbar i{width:16px;height:0;border-top:2px solid;display:inline-block}
.rp-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:34px 0 22px}
.rp-tabs button{font:700 14px var(--sans);padding:12px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text);cursor:pointer;display:flex;gap:10px;align-items:center}
.rp-tabs button span{font-family:var(--mono);font-size:11px;color:var(--gold-deep)}
.rp-tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}.rp-tabs button.on span{color:var(--gold)}
.rp-info .badge{display:inline-flex;font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--gold-deep);border:1px solid #E9D9A6;background:#FBF3DA;padding:4px 10px;border-radius:999px;margin-bottom:14px;align-self:flex-start}
.rp-info ul{padding-left:20px;margin:0 0 18px}.rp-info li{margin-bottom:8px;font-size:14.5px}
.rp-info .cover{border:1px solid var(--line);border-radius:14px;padding:14px 16px;background:var(--paper);font-size:12.5px;color:var(--muted);margin-top:auto}
.rp-info .cover b{display:block;color:var(--ink);font-size:13.5px;margin-bottom:4px;line-height:1.35}
.steps4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:36px}

@media (max-width:1000px){
  .explorer{grid-template-columns:1fr}
  .ex-rail{flex-direction:row;overflow-x:auto;max-height:none;padding-bottom:8px}
  .ex-rail button{flex:0 0 240px}
  .domains,.steps4{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){.domains,.steps4,.mini-kpis{grid-template-columns:1fr}}
.wg-info{grid-template-columns:auto 1fr auto 1fr}
.wg-info .i-s{grid-column:2/5}

.case .info{color:var(--text)}
.mini-kpis b{font-size:17px}
.mol-wrap{display:flex;flex-direction:column;gap:12px}
.mol-side{display:grid;grid-template-columns:170px 1fr;gap:14px;align-items:start}
.mol-chips{flex-direction:column}
@media (max-width:640px){.mol-side{grid-template-columns:1fr}.mol-chips{flex-direction:row;flex-wrap:wrap}}

/* v3: панели hero с новыми материалами */
.panel.black{background:var(--t-black) center/cover;border-color:#1A1A18;color:#EDEAE3}
.panel.metal{background:var(--t-metal) center/cover;border-color:#A9ADB3;color:#14130f}
.panel.contour{background:var(--t-contour) center/cover;border-color:#DAD6CE;color:var(--ink)}
.panel.goldr{background:var(--t-goldr) center/cover;border-color:#1A1A18;color:#EDEAE3}
.panel.black::after,.panel.goldr::after{background:linear-gradient(120deg,rgba(255,255,255,.08),transparent 32%,transparent 70%,rgba(232,183,48,.06))}
.panel.metal::after{background:linear-gradient(135deg,rgba(255,255,255,.22),transparent 40%)}
.panel.contour::after{background:none}
.panel.metal h3{color:var(--ink)}.panel.metal p{color:#1b1a17}
.panel.metal .tag{border-color:rgba(0,0,0,.28);background:rgba(255,255,255,.6);color:var(--ink)}
.panel.contour .tag{border-color:rgba(0,0,0,.18);background:rgba(255,255,255,.75)}
.panel.metal h3::after,.panel.contour h3::after{content:"";display:block;width:34px;height:3px;background:var(--gold);margin-top:8px}

.panel.black .tag,.panel.goldr .tag,.panel.basalt .tag{border-color:rgba(255,255,255,.35);background:rgba(255,255,255,.08);color:#EDEAE3}
.stats{align-items:stretch}.stats .intro{align-self:center}
.slabs .panel.black .tag,.slabs .panel.goldr .tag,.slabs .panel.basalt .tag{border-color:rgba(255,255,255,.35)!important;background:rgba(255,255,255,.08)!important;color:#EDEAE3!important}

/* v4: металл из присланного изображения; заголовок тёмный для читаемости */
.panel.metal::after{background:none}
.slabs .panel.metal h3{color:var(--ink)!important}
.slabs .panel.metal p{color:#14130f}
.panel.metal .label{color:#14130f}

/* v5: поля по бокам в 2 раза меньше на больших экранах: ширина рамки = (ширина окна + 1320) / 2 */
@media (min-width:1321px){.frame{max-width:calc((100vw + 1320px) / 2)}}