#atarigoBoard{background:linear-gradient(135deg,#b8954a,#d4b06a);border-radius:10px;gap:0;padding:10px;display:grid;box-shadow:0 0 25px #00000080,inset 0 0 10px #00000026}.atarigoCell{cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation;background:0 0;border:none;border-radius:0;justify-content:center;align-items:center;padding:0;display:flex;position:relative}.atarigoCell:before{content:"";pointer-events:none;z-index:0;background:#3c280a73;height:1.5px;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%)}.atarigoCell:after{content:"";pointer-events:none;z-index:0;background:#3c280a73;width:1.5px;position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%)}.atarigoCell.edge-left:before{left:50%}.atarigoCell.edge-right:before{right:50%}.atarigoCell.edge-top:after{top:50%}.atarigoCell.edge-bottom:after{bottom:50%}.atarigoHoshi{z-index:0;pointer-events:none;background:#3c280a8c;border-radius:50%;width:18%;min-width:5px;height:18%;min-height:5px;position:absolute}.atarigoCell.empty:hover:not(:disabled):before,.atarigoCell.empty:hover:not(:disabled):after{background:#3c280aa6}.atarigoCell.empty:hover:not(:disabled){background:radial-gradient(circle,#fff3 0%,#0000 55%)}.atarigoStone{z-index:2;border-radius:50%;width:88%;height:88%;position:relative}.atarigoStone.black{background:radial-gradient(circle at 35% 30%,#555,#111);box-shadow:0 1px 2px #00000080}.atarigoStone.white{background:radial-gradient(circle at 35% 30%,#fff,#ccc);box-shadow:0 1px 2px #00000059}.atarigoCell.last .atarigoStone{box-shadow:0 0 0 2px var(--gt-gold), 0 1px 3px #0006}.atarigoCell.atari .atarigoStone{animation:1s ease-in-out infinite atarigoPulse}@keyframes atarigoPulse{0%,to{box-shadow:0 0 0 2px #ff6b6b,0 0 4px #ff6b6b66}50%{box-shadow:0 0 0 3px #ff6b6b,0 0 12px #ff6b6bcc}}.atarigoCell.capturing .atarigoStone{animation:.45s ease-out forwards atarigoFade}@keyframes atarigoFade{to{opacity:0;transform:scale(.4)}}.atarigoLiberty{z-index:1;pointer-events:none;background:#50a0ff8c;border-radius:50%;width:22%;height:22%;position:absolute}#atarigoCoach{min-height:1.5em;color:var(--gt-gold);margin-top:8px;font-size:1.05em;font-weight:700;line-height:1.4}#atarigoDiffControl{color:var(--gt-text-muted);flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;font-size:.9em;display:flex}#atarigoDiffControl label{cursor:pointer;align-items:center;gap:4px;display:flex}details.game-rules{max-width:420px;color:var(--gt-text-muted);margin-top:14px}details.game-rules summary{cursor:pointer;color:var(--gt-gold)}details.game-rules .game-rules-body{margin-top:6px;font-size:.9em;line-height:1.7}details.game-rules .game-rules-body p{margin:0 0 .6em}