:root{
  --paper:#ffffff; --ink:#111111; --muted:#6f6f67; --line:#e8e3d7; --soft:#f7f5ef; --soft2:#fbfaf7; --accent:#101010; --gold:#9a835c; --danger:#8b312b; --shadow:0 16px 40px rgba(20,20,20,.08); --radius:24px; --max:1180px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,Arial,"Helvetica Neue",sans-serif;line-height:1.55;letter-spacing:-.01em} 
a{color:inherit;text-decoration:none} img{max-width:100%;height:auto;display:block}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 12% 8%,rgba(150,130,90,.08),transparent 24%),linear-gradient(180deg,rgba(250,247,240,.55),rgba(255,255,255,0) 36%);z-index:-1}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;min-width:210px}.brand img{width:44px;height:44px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff}.brand-title{font-weight:800;letter-spacing:.08em;font-size:13px;text-transform:uppercase}.brand-sub{font-size:12px;color:var(--muted);margin-top:1px}.menu{display:flex;gap:6px;align-items:center;justify-content:flex-end;flex-wrap:wrap}.menu a{font-size:13px;border:1px solid transparent;border-radius:999px;padding:9px 12px;color:#2b2b27}.menu a:hover{border-color:#d8d0c3;background:var(--soft)}.menu a.external{background:#111;color:#fff;border-color:#111}.menu a.external:hover{background:#333}
.hero{padding:72px 0 46px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#756b57;border:1px solid var(--line);border-radius:999px;padding:8px 12px;background:var(--soft2)}h1{font-family:Georgia,"Times New Roman",serif;font-weight:500;line-height:1.02;font-size:clamp(42px,7vw,86px);letter-spacing:-.045em;margin:22px 0 18px}.lead{font-size:clamp(18px,2vw,23px);color:#2e2d29;max-width:760px;line-height:1.48}.sublead{color:var(--muted);font-size:16px;max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid #111;background:#111;color:#fff;border-radius:999px;padding:13px 18px;font-weight:650;font-size:14px;box-shadow:0 10px 22px rgba(0,0,0,.08);transition:.18s ease}.btn:hover{transform:translateY(-1px)}.btn.secondary{background:#fff;color:#111;border-color:#d4cabb;box-shadow:none}.btn.ghost{background:var(--soft);color:#111;border-color:var(--line);box-shadow:none}.mark-panel{background:#fff;border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow);padding:36px;min-height:460px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.mark-panel img{width:min(320px,80%);object-fit:contain}.mark-panel p{color:var(--muted);font-size:14px;max-width:420px}.section{padding:52px 0;border-top:1px solid var(--line)}.section.alt{background:linear-gradient(180deg,#fff,var(--soft2))}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px}.section h2{font-family:Georgia,"Times New Roman",serif;font-size:clamp(32px,4vw,52px);font-weight:500;letter-spacing:-.035em;line-height:1.1;margin:0}.section .note{color:var(--muted);max-width:520px}.grid{display:grid;gap:18px}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 6px 24px rgba(50,40,20,.045)}.card h3{font-family:Georgia,"Times New Roman",serif;font-size:24px;letter-spacing:-.02em;margin:0 0 10px}.card p{color:#57534a;margin:0}.tag{display:inline-flex;margin-bottom:12px;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#77684d;border:1px solid var(--line);border-radius:999px;padding:6px 9px;background:var(--soft2)}.tiny{font-size:13px;color:var(--muted)}.list{margin:0;padding-left:18px;color:#49463e}.list li{margin:6px 0}.image-card{border:1px solid var(--line);border-radius:28px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}.image-card img{width:100%;aspect-ratio:16/10;object-fit:cover}.image-card figcaption{padding:14px 16px;color:var(--muted);font-size:13px}.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start}.paper{background:#fff;border:1px solid var(--line);border-radius:28px;padding:32px;box-shadow:var(--shadow)}.toc{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.toc a{padding:14px 16px;border:1px solid var(--line);border-radius:18px;background:#fff}.toc a:hover{background:var(--soft)}.room{min-height:72vh;display:grid;place-items:center;padding:40px 0}.doorbox{width:min(520px,92vw);height:560px;border:1px solid #d6cdbc;border-radius:28px;background:linear-gradient(180deg,#f9f7f0,#fff);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}.door{width:210px;height:350px;border-radius:14px 14px 6px 6px;background:#111;cursor:pointer;position:relative;transition:.5s transform;transform-origin:left center}.door:before{content:"";position:absolute;inset:34px 34px auto 34px;height:82px;background:#fff;border-radius:50% 50% 44% 44%;clip-path:ellipse(50% 38% at 50% 50%)}.door:after{content:"";position:absolute;width:35px;height:35px;background:#111;border-radius:50%;left:88px;top:58px;box-shadow:0 0 0 22px #fff}.door.opened{transform:perspective(700px) rotateY(-62deg)}.console{background:#111;color:#f7f5ee;border-radius:18px;padding:18px;font-family:"Courier New",monospace;font-size:14px}.kpi{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:18px}.kpi span{border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center;background:#fff}.footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:13px;background:#fff}.footer-grid{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.mono{font-family:"Courier New",monospace}.quote{font-family:Georgia,"Times New Roman",serif;font-size:25px;line-height:1.35;color:#2c2a25}.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.fullbleed{margin:22px 0}.status-ok{display:inline-flex;align-items:center;gap:8px;background:#eef6ee;color:#315c35;border:1px solid #cfe3d0;border-radius:999px;padding:8px 12px;font-size:13px}
@media(max-width:860px){.nav{height:auto;padding:14px 0;align-items:flex-start}.menu{justify-content:flex-start}.hero-grid,.split,.grid.cols-2,.grid.cols-3,.grid.cols-4,.toc,.gallery{grid-template-columns:1fr}.hero{padding-top:34px}.mark-panel{min-height:auto}.section-head{display:block}.brand{min-width:0}.kpi{grid-template-columns:1fr 1fr}.menu a{font-size:12px;padding:8px 10px}}

/* v10 white paper refinements */
body{background:#fff;color:#151515}
body:before{background:linear-gradient(180deg,rgba(250,249,245,.75),rgba(255,255,255,0) 38%),radial-gradient(circle at 88% 8%,rgba(190,175,135,.07),transparent 28%)}
.topbar{background:rgba(255,255,255,.96)}
.menu a.external{background:#fff;color:#111;border-color:#d4cabb}
.menu a.external:hover{background:#f7f5ef;color:#111}
.btn{background:#fff;color:#111;border-color:#111;box-shadow:none}
.btn:hover{background:#111;color:#fff}
.btn.secondary,.btn.ghost{background:#fff;color:#111;border-color:#d4cabb}
.section.alt{background:#fff}
.hero{background:#fff}
.mark-panel{background:#fff}
.card,.paper,.image-card{box-shadow:0 10px 28px rgba(50,40,20,.045)}
.gallery.archive-gallery{grid-template-columns:repeat(3,1fr)}
.gallery.roman-gallery{grid-template-columns:repeat(3,1fr)}
.gallery.board-gallery{grid-template-columns:repeat(2,1fr)}
.image-card.tall img{aspect-ratio:3/4;object-fit:cover;object-position:center top}
.image-card.square img{aspect-ratio:1/1;object-fit:cover}
.image-card.wide img{aspect-ratio:16/9;object-fit:cover}
.hero.no-actions .actions{display:none!important}
.clean-note{font-size:14px;color:#6f6f67;max-width:720px}
@media(max-width:980px){.gallery.archive-gallery,.gallery.roman-gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.gallery.archive-gallery,.gallery.roman-gallery,.gallery.board-gallery{grid-template-columns:1fr}}


/* v11 active navigation state */
.menu a.active,
.menu a[aria-current="page"]{
  background:#111;
  color:#fff;
  border-color:#111;
}
.menu a.external{
  background:#fff;
  color:#111;
  border-color:#d4cabb;
}
.menu a.external:hover{
  background:#f7f5ef;
  color:#111;
}
.menu a.external.active,
.menu a.external[aria-current="page"]{
  background:#111;
  color:#fff;
  border-color:#111;
}


/* v12 brand and boardgame structure refinements */
.brand-copy{display:flex;flex-direction:column;line-height:1.05;gap:2px}
.brand-row{display:flex;align-items:baseline;gap:7px;white-space:nowrap}
.brand-ru{font-weight:850;letter-spacing:.09em;font-size:13px;text-transform:uppercase}
.brand-en{font-weight:700;letter-spacing:.08em;font-size:12px;text-transform:uppercase;color:#777067}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.015em;margin-top:1px;align-self:flex-start}
.brand-title{display:none}
.board-structure{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-items:stretch}
.rule-block{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 6px 24px rgba(50,40,20,.04)}
.rule-block.full{grid-column:1/-1}
.rule-block h3{font-family:Georgia,"Times New Roman",serif;font-size:25px;line-height:1.1;margin:0 0 10px;letter-spacing:-.025em}
.rule-block p{margin:0;color:#4d4941;font-size:15.5px;line-height:1.62}
.rule-block .rule-label{display:inline-flex;margin-bottom:12px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#77684d;border:1px solid var(--line);border-radius:999px;padding:6px 9px;background:var(--soft2)}
.rule-list{margin:14px 0 0;padding-left:18px;color:#4d4941}
.rule-list li{margin:7px 0;line-height:1.55}
.token-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:16px}
.token-strip span{border:1px solid var(--line);border-radius:999px;padding:10px 12px;text-align:center;background:var(--soft2);font-size:13px;font-weight:650;color:#312f2a}
@media(max-width:860px){.board-structure{grid-template-columns:1fr}.brand-row{flex-wrap:wrap;gap:4px 7px}.token-strip{grid-template-columns:1fr 1fr}.brand img{width:42px;height:42px}}

/* v13 collage archive and fixed active navigation */
.menu a{
  background:transparent;
  border-color:transparent;
  color:#2b2b27;
}
.menu a.external,
.menu a.lab-link{
  background:transparent !important;
  color:#2b2b27 !important;
  border-color:transparent !important;
  box-shadow:none !important;
}
.menu a:hover{
  border-color:#d8d0c3;
  background:var(--soft);
}
.menu a.active,
.menu a[aria-current="page"]{
  background:#111 !important;
  color:#fff !important;
  border-color:#111 !important;
  box-shadow:0 8px 22px rgba(0,0,0,.08);
}
.menu a.external.active,
.menu a.external[aria-current="page"],
.menu a.lab-link.active,
.menu a.lab-link[aria-current="page"]{
  background:#111 !important;
  color:#fff !important;
  border-color:#111 !important;
}
.visual-collage{
  position:relative;
  min-height:860px;
  margin:20px -12px 0;
  padding:36px 10px 60px;
  overflow:visible;
  isolation:isolate;
}
.visual-collage:before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:34px;
  background:
    radial-gradient(circle at 20% 18%, rgba(180,170,145,.16), transparent 30%),
    radial-gradient(circle at 78% 80%, rgba(120,110,95,.10), transparent 32%),
    linear-gradient(180deg,#fbfaf6,#fff 58%,#f7f5ef);
  border:1px solid var(--line);
  z-index:-2;
}
.visual-collage:after{
  content:"";
  position:absolute;
  inset:18px;
  border-radius:28px;
  background-image:linear-gradient(90deg,rgba(0,0,0,.018) 1px,transparent 1px),linear-gradient(rgba(0,0,0,.015) 1px,transparent 1px);
  background-size:42px 42px;
  opacity:.55;
  z-index:-1;
  pointer-events:none;
}
.archive-sheet{
  position:absolute;
  margin:0;
  background:#fffdf7;
  padding:9px;
  border:1px solid rgba(92,83,66,.25);
  box-shadow:0 18px 46px rgba(45,37,22,.16),0 3px 8px rgba(45,37,22,.09);
  transform-origin:center;
  transition:transform .18s ease, box-shadow .18s ease;
}
.archive-sheet:hover{
  z-index:20;
  transform:rotate(0deg) scale(1.018) !important;
  box-shadow:0 26px 62px rgba(45,37,22,.20),0 5px 12px rgba(45,37,22,.10);
}
.archive-sheet img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  filter:grayscale(.06) contrast(1.02) saturate(.92);
}
.archive-sheet.sheet-1{width:38%;height:330px;left:3%;top:46px;transform:rotate(-3.2deg);z-index:4;}
.archive-sheet.sheet-2{width:39%;height:300px;right:4%;top:24px;transform:rotate(2.1deg);z-index:3;}
.archive-sheet.sheet-3{width:26%;height:360px;left:34%;top:190px;transform:rotate(-1.1deg);z-index:7;}
.archive-sheet.sheet-4{width:28%;height:360px;left:5%;top:360px;transform:rotate(4.1deg);z-index:5;}
.archive-sheet.sheet-5{width:31%;height:360px;right:7%;top:330px;transform:rotate(-3.8deg);z-index:6;}
.archive-sheet.sheet-6{width:43%;height:270px;left:28%;top:575px;transform:rotate(1.6deg);z-index:8;}
.archive-sheet.sheet-7{width:26%;height:250px;left:2%;top:610px;transform:rotate(-2.2deg);z-index:9;}
.archive-sheet.sheet-8{width:25%;height:250px;right:2%;top:620px;transform:rotate(2.9deg);z-index:9;}
.archive-sheet.sheet-9{width:28%;height:240px;left:54%;top:120px;transform:rotate(4.4deg);z-index:10;}
@media(max-width:980px){
  .visual-collage{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;min-height:auto;margin:16px 0;padding:18px;overflow:hidden;}
  .archive-sheet{position:relative!important;left:auto!important;right:auto!important;top:auto!important;width:auto!important;height:auto!important;transform:rotate(0deg)!important;}
  .archive-sheet img{aspect-ratio:4/3;height:auto;}
}
@media(max-width:620px){.visual-collage{grid-template-columns:1fr}.archive-sheet img{aspect-ratio:3/2}}


/* v14 interactive draggable collages */
.interactive-collage{
  user-select:none;
  -webkit-user-select:none;
}
.interactive-collage .archive-sheet{
  cursor:grab;
  touch-action:pan-y;
  will-change:transform,left,top;
  transform:translate(var(--dx,0px),var(--dy,0px)) rotate(var(--rot,var(--base-rot,0deg))) scale(var(--scale,1)) !important;
  transition:box-shadow .16s ease, filter .16s ease;
}
.interactive-collage .archive-sheet:hover{
  transform:translate(var(--dx,0px),var(--dy,0px)) rotate(var(--rot,var(--base-rot,0deg))) scale(1.022) !important;
  z-index:80 !important;
}
.interactive-collage .archive-sheet:focus-visible{
  outline:2px solid #111;
  outline-offset:4px;
}
.interactive-collage .archive-sheet.is-dragging{
  cursor:grabbing;
  z-index:999 !important;
  transform:translate(var(--dx,0px),var(--dy,0px)) rotate(var(--rot,var(--base-rot,0deg))) scale(1.035) !important;
  box-shadow:0 30px 80px rgba(45,37,22,.25),0 8px 22px rgba(45,37,22,.14);
}
.interactive-collage .archive-sheet.is-selected{
  z-index:120 !important;
}
.interactive-collage .archive-sheet.sheet-1{--base-rot:-3.2deg;}
.interactive-collage .archive-sheet.sheet-2{--base-rot:2.1deg;}
.interactive-collage .archive-sheet.sheet-3{--base-rot:-1.1deg;}
.interactive-collage .archive-sheet.sheet-4{--base-rot:4.1deg;}
.interactive-collage .archive-sheet.sheet-5{--base-rot:-3.8deg;}
.interactive-collage .archive-sheet.sheet-6{--base-rot:1.6deg;}
.interactive-collage .archive-sheet.sheet-7{--base-rot:-2.2deg;}
.interactive-collage .archive-sheet.sheet-8{--base-rot:2.9deg;}
.interactive-collage .archive-sheet.sheet-9{--base-rot:4.4deg;}
.collage-hint{margin-top:-10px;margin-bottom:14px;color:#81786a;font-size:13px;}
@media(max-width:980px){
  .interactive-collage .archive-sheet{touch-action:pan-y;}
}
@media(max-width:620px){
  .collage-hint{font-size:12px;}
}


/* v15: uncropped illustrations and scalable sheets */
.visual-collage{
  min-height:980px;
  padding-bottom:90px;
  overflow:visible;
}
.visual-collage .archive-sheet{
  height:auto !important;
  overflow:visible;
}
.visual-collage .archive-sheet img{
  width:100%;
  height:auto !important;
  max-height:none !important;
  object-fit:contain !important;
  aspect-ratio:auto !important;
  display:block;
  background:#fff;
}
.interactive-collage .archive-sheet,
.interactive-collage .archive-sheet:hover,
.interactive-collage .archive-sheet.is-dragging{
  transform:translate(var(--dx,0px),var(--dy,0px)) rotate(var(--rot,var(--base-rot,0deg))) scale(var(--scale,1)) !important;
}
.interactive-collage .archive-sheet:hover{
  z-index:80 !important;
  filter:contrast(1.015);
}
.interactive-collage .archive-sheet.is-dragging{
  z-index:999 !important;
}
.collage-hint{
  display:inline-flex;
  flex-wrap:wrap;
  gap:6px;
  align-items:center;
  margin:0 0 18px;
  padding:8px 11px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:#81786a;
  font-size:12px;
  line-height:1.35;
}
.collage-hint kbd{
  font-family:Inter,Arial,sans-serif;
  font-size:11px;
  line-height:1;
  padding:4px 6px;
  border:1px solid #d8d0c3;
  border-bottom-color:#bcb29f;
  border-radius:6px;
  background:#fbfaf7;
  color:#2f2d28;
  box-shadow:0 1px 0 rgba(0,0,0,.04);
}
@media(max-width:980px){
  .visual-collage{min-height:auto;overflow:visible;}
  .visual-collage .archive-sheet img{height:auto!important;aspect-ratio:auto!important;}
}
@media(max-width:620px){
  .collage-hint{border-radius:18px;display:block;padding:10px 12px;}
}


/* v17 footer author link and two-finger touch collage gestures */
.footer a.footer-author{
  color:#1a1a16;
  font-weight:650;
  border-bottom:1px solid rgba(17,17,17,.22);
  text-decoration:none;
}
.footer a.footer-author:hover{
  border-bottom-color:#111;
}
.collage-hint{
  gap:8px 12px;
}
.collage-hint .hint-line{
  display:inline-flex;
  flex-wrap:wrap;
  align-items:center;
  gap:5px;
}
.interactive-collage{
  touch-action:pan-y;
}
.interactive-collage .archive-sheet,
.interactive-collage .archive-sheet img{
  touch-action:pan-y;
}
.interactive-collage .archive-sheet.is-gesture{
  cursor:grabbing;
  z-index:1000 !important;
  box-shadow:0 32px 88px rgba(45,37,22,.26),0 9px 26px rgba(45,37,22,.15);
}
@media(max-width:620px){
  .collage-hint .hint-line{display:flex;margin:2px 0;}
}

/* v20 exact brand writing */
.brand-ru,
.brand-en{
  text-transform:none;
}
.brand-ru{
  letter-spacing:.015em;
  font-size:13.5px;
}
.brand-en{
  letter-spacing:.01em;
  font-size:12.5px;
}
.footer .mono{
  letter-spacing:.01em;
}


/* v22: laboratory button is an external transition and stays last in the menu */
.menu a.lab-link{
  background:#fbf4dc !important;
  color:#2d2614 !important;
  border-color:#cdbb83 !important;
  box-shadow:0 6px 18px rgba(154,131,92,.12) !important;
}
.menu a.lab-link:hover{
  background:#f2e6bd !important;
  color:#111 !important;
  border-color:#b7a065 !important;
  transform:translateY(-1px);
}
.menu a.lab-link::after{
  content:"";
}