:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;color-scheme:dark;--bg:#101519;--panel:#192126;--sub:#121b20;--line:#2d383e;--ink:#eef2ed;--muted:#9daaa9;--accent:#b6e799;--p1:#f2a35e;--p2:#65aef4;--p3:#8ecb89;--p4:#bb95df}
:root[data-theme=light]{color-scheme:light;--bg:#f1f2ed;--panel:#fff;--sub:#e9eee8;--line:#d2dcd4;--ink:#1d2a26;--muted:#5a6b64;--accent:#326b38}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button,a,select{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button{cursor:pointer}button:disabled{opacity:.45;cursor:wait}a{color:inherit}header{display:flex;justify-content:space-between;align-items:center;min-height:100px;border-bottom:1px solid var(--line);gap:12px}.shell{max-width:1600px;margin:auto;padding:0 40px}.brand{display:flex;gap:8px;align-items:center;text-decoration:none;font-size:24px;font-weight:750;letter-spacing:-1px}.brand>span{color:var(--accent)}.brand strong{font-size:14px;letter-spacing:2px;margin-left:14px}.brand small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.header-controls{display:flex;gap:12px}.header-controls button{background:none;color:var(--ink);border:1px solid var(--line);border-radius:50%;width:38px;height:38px}.header-controls select{width:78px}.workspace{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;padding-top:36px}nav{display:flex;flex-direction:column;gap:5px}nav a{text-decoration:none;padding:12px 14px;border-radius:8px;color:var(--muted);font-size:14px}nav a[aria-current]{background:var(--panel);color:var(--accent);border-left:2px solid var(--accent)}main{min-width:0;padding-bottom:70px}h1{font-weight:520;letter-spacing:-2px;font-size:clamp(32px,3.6vw,56px);line-height:1.13;margin:18px 0 24px}h2{font-size:20px;font-weight:550}p{line-height:1.7}.lead{color:var(--muted);max-width:700px;font-size:17px}.eyebrow{font-size:11px;letter-spacing:2.5px;color:var(--accent);font-weight:700}.hero{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(220px,1fr);gap:40px;padding:40px 0}.hero h1{max-width:680px}.card,.research-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;min-width:0}.research-card{align-self:center;min-height:290px;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(145deg,var(--sub),var(--panel));border-top:2px solid var(--accent)}.research-card h2{font-size:30px;line-height:1.2}.research-card p{color:var(--muted)}.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:32px 0}.metric-index{font-size:12px;color:var(--accent)}.button{background:var(--accent);color:var(--bg);padding:12px 18px;border:1px solid transparent;border-radius:7px;font-size:13px;font-weight:650;margin:6px 6px 6px 0;line-height:1.4}.button.secondary{background:var(--sub);color:var(--ink);border-color:var(--line)}.badge{display:inline-block;border:1px solid var(--line);color:var(--muted);font-size:11px;letter-spacing:1px;border-radius:20px;padding:5px 12px}.page-heading{margin-bottom:24px}.controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:end}.controls label:nth-child(3),.controls label:nth-child(4){max-width:160px}label{display:flex;flex-direction:column;font-size:12px;gap:8px;color:var(--muted);min-width:0}input,select,textarea{background:var(--sub);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:11px;max-width:100%;min-width:0}textarea{width:100%;min-height:180px;font-family:ui-monospace,monospace;font-size:12px;resize:vertical}.login{margin-bottom:20px;display:grid;grid-template-columns:1fr auto;gap:12px}.login h2,.login p{grid-column:1/-1;margin:0}.login[hidden]{display:none}.view-tabs{display:flex;gap:10px;margin:20px 0}.view-tabs button{background:var(--panel);color:var(--ink);border-color:var(--line)}.view-tabs button[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.lab-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,1fr);gap:20px;align-items:start}.board-panel{position:sticky;top:16px;padding:12px}.board-panel svg{display:block;width:100%;aspect-ratio:1}.board-empty{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--sub);border-radius:10px;color:var(--muted)}.board-empty span{font-size:70px;color:var(--accent)}.board-empty p{text-align:center;font-size:13px}.cell{fill:var(--sub);stroke:var(--line);stroke-width:1.5}.cell.owner-1{stroke:var(--p1)}.cell.owner-2{stroke:var(--p2)}.cell.owner-3{stroke:var(--p3)}.cell.owner-4{stroke:var(--p4)}.token{stroke:var(--bg);stroke-width:2}.token.owner-1{fill:var(--p1)}.token.owner-2{fill:var(--p2)}.token.owner-3{fill:var(--p3)}.token.owner-4{fill:var(--p4)}.token.reserve{stroke-dasharray:3 2}.piece-label{fill:#101519;font-size:10px;text-anchor:middle;pointer-events:none}.die{fill:var(--ink)}.pip{fill:var(--bg)}.board-caption{font-size:11px;fill:var(--muted);text-anchor:middle}.muted{color:var(--muted);font-size:12px}.status{min-height:46px;font-size:13px;color:var(--accent);margin:0 0 12px}.stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}.stats div{border-bottom:1px solid var(--line);padding-bottom:8px}.stats small{display:block;font-size:10px;color:var(--muted);min-height:28px}.stats strong{font-size:19px}.legal,.history,details.card{margin-top:20px}summary{cursor:pointer;font-size:14px;color:var(--muted)}.action-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:8px;margin-top:12px}.action-row code{overflow-wrap:anywhere;font-size:11px}pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:16px;background:var(--sub);border:1px solid var(--line);border-radius:6px;font-size:11px;max-height:360px;overflow:auto}code{overflow-wrap:anywhere;font-size:12px}.text-link{display:block;margin:12px 0;color:var(--accent)}table{border-collapse:collapse;width:100%;font-size:12px}th,td{text-align:left;border-bottom:1px solid var(--line);padding:12px 8px}footer{padding:24px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}#toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:8px;max-width:90vw;font-size:12px;z-index:5;pointer-events:none}#toast:empty{display:none}.skip{position:fixed;top:-100px;background:var(--ink);color:var(--bg);padding:12px;z-index:10}.skip:focus{top:5px}
@media(max-width:1100px){.shell{padding:0 24px}.workspace{grid-template-columns:160px minmax(0,1fr);gap:24px}.hero{grid-template-columns:1fr}.research-card{min-height:190px}.lab-grid{grid-template-columns:1fr}.board-panel{position:static}.principles{grid-template-columns:1fr}.controls{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:700px){.shell{padding:0 14px}header{min-height:80px}.brand strong{font-size:10px;margin-left:5px}.brand{font-size:20px}.workspace{display:flex;flex-direction:column;padding-top:12px;gap:20px}nav{flex-direction:row;overflow-x:auto;max-width:100%;border-bottom:1px solid var(--line);padding-bottom:8px}nav a{flex-shrink:0;font-size:12px;padding:9px}h1{letter-spacing:-1px}.hero{padding:12px 0;gap:20px}.lead{font-size:14px}.card{padding:16px}.controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.lab-grid{gap:16px}.board-panel{padding:3px}.action-row{grid-template-columns:1fr}.view-tabs .button{font-size:12px;padding:10px}.login{grid-template-columns:1fr}.header-controls{gap:6px}.header-controls select{width:65px}.decision{min-width:0}}
.attempt-chart{display:block;width:100%;max-height:100px;border-bottom:1px solid var(--line)}.attempt-chart .valid{fill:var(--p3)}.attempt-chart .invalid{fill:var(--p1)}
.decision>.controls{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:0 0 18px;margin-bottom:18px;grid-template-columns:repeat(2,minmax(0,1fr))}.decision>.controls .button{grid-column:1/-1;margin:0}.lab-grid{align-items:start}
.piece-label.stacked{font-size:6px}nav{scrollbar-width:thin;scrollbar-color:var(--line) var(--bg)}

.public-notice{padding:12px 16px;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-size:13px}