:root{--bg:#f3f0e8;--ink:#111;--line:#111;--red:#ff3b30;--blue:#0057ff;--yellow:#ffd60a;--purple:#7c3aed;--panel:#fffdf7}*{box-sizing:border-box}html,body{background:linear-gradient(90deg, #0057ff0b 1px, transparent 1px), linear-gradient(#ff3b300a 1px, transparent 1px), var(--bg);min-height:100%;color:var(--ink);background-size:28px 28px;margin:0;font-family:Arial,Helvetica,sans-serif}button{font:inherit}.shell{width:min(1100px,100% - 32px);margin:0 auto;padding:16px 0 24px}.hero{border-bottom:4px solid var(--line);justify-content:space-between;align-items:end;gap:16px;padding:0 0 14px;display:flex}.eyebrow,.panelKicker{letter-spacing:.16em;margin:0 0 8px;font-size:12px;font-weight:800}h1{letter-spacing:-.06em;margin:0;font-size:clamp(36px,4.5vw,60px);line-height:.95}.subtitle{max-width:760px;margin:10px 0 0;font-size:14px;line-height:1.45}.resetButton{border:3px solid var(--line);background:var(--yellow);box-shadow:6px 6px 0 var(--line);cursor:pointer;flex-shrink:0;padding:10px 14px;font-weight:900}.resetButton:active{box-shadow:3px 3px 0 var(--line);transform:translate(3px,3px)}.gameGrid{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:16px;margin-top:16px;display:grid}.boardPanel,.decisionPanel{border:3px solid var(--line);background:var(--panel);box-shadow:8px 8px 0 var(--line)}.boardPanel{min-width:0;padding:12px}.statusBar{border-bottom:3px solid var(--line);justify-content:space-between;align-items:center;gap:16px;margin-bottom:12px;padding-bottom:10px;display:flex}.statusBar strong{font-size:20px}.statusBar span{text-align:right;font-size:13px}.boardWrap{width:min(100%,100dvh - 236px);margin-inline:auto}.columnLabels{grid-template-columns:24px repeat(15,minmax(0,1fr));height:14px;margin-bottom:5px;display:grid}.columnLabels span,.rowLabels span{place-items:center;font-size:11px;font-weight:800;display:grid}.boardWithRows{grid-template-columns:24px minmax(0,1fr);display:grid}.rowLabels{grid-template-rows:repeat(15,1fr);display:grid}.board{border-top:2px solid var(--line);border-left:2px solid var(--line);aspect-ratio:1;grid-template-rows:repeat(15,minmax(0,1fr));grid-template-columns:repeat(15,minmax(0,1fr));display:grid}.cell{border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0;min-height:0;color:var(--ink);cursor:pointer;background:#f4d7a1;padding:0;font-size:clamp(12px,2.6dvh,26px);font-weight:900;position:relative}.cell:not(:disabled):hover{background:#ffe8bd}.cell-X{color:var(--blue)}.cell-O{color:var(--red)}.cell-last:after{content:"";background:var(--purple);width:5px;height:5px;position:absolute;top:2px;right:2px}.decisionPanel{overflow-wrap:anywhere;align-self:start;min-width:0;max-height:calc(100dvh - 180px);padding:16px;position:sticky;top:20px;overflow:auto}.decisionPanel h2{color:var(--purple);margin:0 0 14px;font-size:48px;line-height:1}.metric{border-top:2px solid var(--line);justify-content:space-between;gap:16px;padding:11px 0;font-size:13px;display:flex}.metric strong{text-align:right}.probabilityList{gap:14px;margin-top:16px;display:grid}.probabilityMeta{justify-content:space-between;margin-bottom:6px;font-size:13px;display:flex}.track{border:2px solid var(--line);background:#fff;height:12px}.fill{background:var(--blue);height:100%}.usage,.warning,.emptyState{font-size:13px;line-height:1.5}.usage{border-top:2px solid var(--line);margin-top:16px;padding-top:12px}.warning{border:2px solid var(--line);background:var(--yellow);padding:10px}.emptyState{border-top:2px solid var(--line);padding-top:14px}@media (max-width:760px){.gameGrid{grid-template-columns:1fr}.decisionPanel{max-height:none;position:static}}@media (max-width:700px){.shell{width:calc(100% - 24px);padding-top:12px}.hero,.statusBar{flex-wrap:wrap;align-items:flex-start}.statusBar span{text-align:left}}@media (max-width:760px){.boardWrap{width:100%}.statusBar{gap:6px}}