:root{--disc-black: #2b2b2b;--disc-black-hi: #565656;--disc-white: #f4f1ea;--disc-white-hi: #ffffff;--felt: #3a8f5c;--felt-line: #2f7a4d}*{box-sizing:border-box;margin:0;padding:0}html,body{min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;touch-action:manipulation}#app{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px}.game{width:min(94vw,440px);display:flex;flex-direction:column;gap:14px}.crumb{font-size:14px}.crumb a{color:var(--accent);text-decoration:none;font-weight:700}.crumb a:hover{text-decoration:underline}.topbar{display:flex;align-items:center;justify-content:space-between}.title{font-size:clamp(28px,8vw,44px);font-weight:800;line-height:1;letter-spacing:-1px}.stats{display:flex;gap:8px}.stat{flex:1;background:var(--board-bg);color:var(--accent-text);border-radius:6px;padding:6px 10px;text-align:center;transition:box-shadow .12s ease,transform .12s ease}.stat.active{box-shadow:0 0 0 3px var(--accent);transform:translateY(-1px)}.stat .label{font-size:10px;text-transform:uppercase;letter-spacing:1px;opacity:.85;font-weight:700}.stat .value{font-size:22px;font-weight:800;line-height:1.1}.stat .chip{display:inline-block;width:10px;height:10px;border-radius:50%;vertical-align:middle;margin-right:5px}.stat .chip.b{background:var(--disc-black);box-shadow:inset 0 0 0 1px #ffffff40}.stat .chip.w{background:var(--disc-white);box-shadow:inset 0 0 0 1px #00000040}.status{font-size:16px;font-weight:700;text-align:center;min-height:22px}.board{position:relative;width:100%}.grid{display:grid;grid-template-columns:repeat(8,1fr);gap:2.4%;background:var(--felt);padding:2.6%;border-radius:10px;box-shadow:inset 0 0 0 2px var(--felt-line)}.cell{aspect-ratio:1 / 1;background:#0000001f;border:none;border-radius:14%;padding:8%;cursor:default;display:flex;align-items:center;justify-content:center;position:relative}.cell.legal{cursor:pointer}.cell.legal:after{content:"";position:absolute;width:26%;height:26%;border-radius:50%;background:#ffffff8c;transition:transform .12s ease,opacity .12s ease}.cell.legal:hover:after{transform:scale(1.25);opacity:.85}.disc{width:100%;height:100%;border-radius:50%;transform:scale(0);transition:transform .14s ease}.disc.on{transform:scale(1)}.disc.b{background:radial-gradient(circle at 34% 30%,var(--disc-black-hi),var(--disc-black));box-shadow:0 1px 2px #0006}.disc.w{background:radial-gradient(circle at 34% 30%,var(--disc-white-hi),var(--disc-white));box-shadow:0 1px 2px #0000004d}.disc.flip{animation:flip .3s ease}@keyframes flip{0%{transform:scale(1) rotateY(0)}50%{transform:scale(1.05) rotateY(90deg)}to{transform:scale(1) rotateY(0)}}.disc.place{animation:place .2s ease}@keyframes place{0%{transform:scale(0)}70%{transform:scale(1.12)}to{transform:scale(1)}}.cell.cursor{box-shadow:inset 0 0 0 3px var(--accent)}.overlay{position:absolute;inset:0;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:20px;background:var(--overlay-bg);z-index:10;opacity:0;pointer-events:none;transition:opacity .22s ease}.overlay.show{opacity:1;pointer-events:auto}.overlay .msg{font-size:clamp(26px,8vw,40px);font-weight:800}.overlay.win .msg{color:#ed9a2e}.overlay .sub{font-size:15px;font-weight:700;opacity:.9}.controls{display:flex;align-items:center;justify-content:space-between;gap:10px}.how{font-size:13px;opacity:.85;flex:1}.how b{font-weight:700}.btn{background:var(--accent);color:var(--accent-text);border:none;border-radius:6px;padding:10px 16px;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap;transition:filter .12s ease}.btn:hover{filter:brightness(1.05)}.btn:active{filter:brightness(.95)}