.go-game{width:100%;height:100vh;height:100dvh;padding:8px;display:grid;grid-template-rows:auto 1fr auto;align-items:center;background:linear-gradient(135deg,#d2691e,#8b4513);color:#fff;overflow:hidden}.game-header{width:100%;text-align:center;padding:8px 0;display:flex;flex-direction:column;gap:8px}.game-header h1{font-size:clamp(1.2rem,3vw,1.5rem);margin:0;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.game-info{display:flex;justify-content:space-between;align-items:center;gap:8px}.current-player{display:flex;justify-content:center;flex-shrink:0}.player-indicator{padding:4px 12px;border-radius:16px;font-weight:600;font-size:clamp(12px,3vw,14px);background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid;white-space:nowrap}.player-indicator.black{border-color:#000;color:#000;background:#ffffffe6}.player-indicator.white{border-color:#fff;color:#fff;background:#0000004d}.scores{display:flex;gap:8px}.score{display:flex;flex-direction:column;align-items:center;gap:2px;background:#ffffff1a;padding:6px 8px;border-radius:8px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-width:60px;font-size:clamp(10px,2.5vw,12px)}.score span{font-size:clamp(9px,2vw,10px);font-weight:500;line-height:1.2}.board-container{display:flex;justify-content:center;align-items:center;padding:8px;background:#8b4513cc;border-radius:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 16px #0000004d;margin:0 auto;width:fit-content;max-width:100%;max-height:100%;overflow:hidden}.go-board{display:grid;grid-template-columns:repeat(19,1fr);grid-template-rows:repeat(19,1fr);gap:0;background:linear-gradient(45deg,#deb887,tan);padding:8px;border-radius:8px;box-shadow:inset 0 2px 4px #0003;width:min(85vw,85vh,400px);height:min(85vw,85vh,400px);aspect-ratio:1}.cell{position:relative;background:transparent;border:none;cursor:pointer;display:flex;justify-content:center;align-items:center;touch-action:manipulation;-webkit-user-select:none;user-select:none;min-height:12px;min-width:12px}.cell:before{content:"";position:absolute;width:100%;height:100%;background-image:linear-gradient(to right,#8B4513 0%,#8B4513 1px,transparent 1px),linear-gradient(to bottom,#8B4513 0%,#8B4513 1px,transparent 1px);background-size:100% 100%;opacity:.6;z-index:1}.cell:nth-child(64),.cell:nth-child(70),.cell:nth-child(76),.cell:nth-child(174),.cell:nth-child(181),.cell:nth-child(186),.cell:nth-child(284),.cell:nth-child(290),.cell:nth-child(296){position:relative}.cell:nth-child(64):after,.cell:nth-child(70):after,.cell:nth-child(76):after,.cell:nth-child(174):after,.cell:nth-child(181):after,.cell:nth-child(186):after,.cell:nth-child(284):after,.cell:nth-child(290):after,.cell:nth-child(296):after{content:"";position:absolute;width:clamp(3px,1vw,4px);height:clamp(3px,1vw,4px);background:#8b4513;border-radius:50%;z-index:2}.cell:hover{background:#ffffff1a;border-radius:2px}.cell.last-move{background:#ffd7004d;border-radius:50%}.stone{width:85%;height:85%;border-radius:50%;box-shadow:0 1px 3px #0000004d;display:flex;justify-content:center;align-items:center;position:relative;z-index:3;transition:all .2s ease}.stone.black{background:radial-gradient(circle at 30% 30%,#555,#000);border:1px solid #000}.stone.white{background:radial-gradient(circle at 30% 30%,#fff,#e0e0e0);border:1px solid #ccc}.last-move-indicator{width:clamp(4px,1.5vw,6px);height:clamp(4px,1.5vw,6px);background:#f44;border-radius:50%;box-shadow:0 0 2px #ff444480}.game-controls{display:flex;gap:8px;padding:8px 0;width:100%}.game-controls button{flex:1;padding:8px 12px;font-size:clamp(11px,3vw,14px);font-weight:600;border-radius:8px;background:#ffffffe6;color:#8b4513;border:2px solid transparent;transition:all .3s ease;min-height:36px;white-space:nowrap}.game-controls button:hover:not(:disabled){background:#fff;border-color:#d2691e;transform:translateY(-1px);box-shadow:0 2px 6px #0003}.game-controls button:disabled{opacity:.5;cursor:not-allowed}.game-over-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);padding:16px}.modal-content{background:linear-gradient(135deg,#d2691e,#8b4513);padding:20px;border-radius:12px;text-align:center;width:100%;max-width:300px;box-shadow:0 8px 24px #0006;border:2px solid rgba(255,255,255,.2)}.modal-content h2{margin-bottom:16px;color:#fff;font-size:clamp(1.2rem,4vw,1.5rem)}.final-scores{margin:16px 0;color:#fff}.final-scores div{margin:6px 0;font-size:clamp(14px,3.5vw,16px)}.winner{font-size:clamp(16px,4vw,20px)!important;font-weight:700;color:gold;margin-top:12px!important;text-shadow:2px 2px 4px rgba(0,0,0,.5)}.modal-content button{margin-top:16px;width:100%;background:#ffffffe6;color:#8b4513;min-height:40px;font-size:clamp(12px,3vw,14px)}@media (orientation: landscape) and (max-height: 500px){.go-game{padding:4px;gap:4px}.game-header{padding:4px 0;gap:4px}.game-header h1{font-size:clamp(1rem,3vw,1.2rem)}.board-container{padding:4px}.go-board{width:min(70vw,75vh,350px);height:min(70vw,75vh,350px);padding:6px}.game-controls{padding:4px 0}.game-controls button{min-height:32px;padding:6px 8px}}@media (min-width: 768px){.go-game{padding:16px;gap:8px}.game-info{justify-content:space-between}.score{min-width:80px;padding:8px 12px}.go-board{width:min(70vw,70vh,500px);height:min(70vw,70vh,500px);padding:12px}.game-controls{max-width:400px;margin:0 auto}.game-controls button{min-height:40px;font-size:14px}}@media (min-width: 1024px){.go-board{width:min(60vw,60vh,600px);height:min(60vw,60vh,600px)}}@media (hover: none){.cell:hover{background:transparent}.cell:active{background:#fff3;border-radius:2px}}@media (max-height: 600px){.go-game{padding:4px}.game-header h1{font-size:clamp(1rem,3vw,1.2rem)}.go-board{width:min(80vw,75vh,300px);height:min(80vw,75vh,300px)}.score{min-width:50px;padding:4px 6px}}@media (prefers-color-scheme: light){.go-game{background:linear-gradient(135deg,wheat,#deb887);color:#8b4513}.game-header h1{color:#8b4513;text-shadow:2px 2px 4px rgba(255,255,255,.3)}.player-indicator.white{color:#8b4513;background:#ffffffe6;border-color:#8b4513}.board-container{background:#f5deb3cc}.game-controls button{background:#8b4513e6;color:#fff}.game-controls button:hover:not(:disabled){background:#8b4513;border-color:wheat}}.App{width:100%;min-height:100vh;margin:0;padding:0;overflow-x:hidden}html{box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;color-scheme:light 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ease;touch-action:manipulation;-webkit-user-select:none;user-select:none;width:100%}button:hover:not(:disabled){background-color:#535bf2;transform:translateY(-1px)}button:active{transform:translateY(0)}button:disabled{opacity:.6;cursor:not-allowed}@media (min-width: 768px){button{width:auto;min-width:120px}}input,select{min-height:44px;font-size:16px;padding:12px;border:1px solid #ccc;border-radius:8px;width:100%;font-family:inherit}.container{width:100%;padding:0 16px;margin:0 auto;box-sizing:border-box}@media (min-width: 768px){.container{padding:0 24px;max-width:1200px}}