body{background-color:#f9f9f9;font-family:system-ui,sans-serif;display:flex;justify-content:center;align-items:center;height:100vh;margin:0}.app{text-align:center}.board{display:grid;grid-template-rows:repeat(15,1fr);gap:2px;margin:20px auto;width:fit-content}.board-row{display:grid;grid-template-columns:repeat(15,1fr);gap:2px}.square{width:30px;height:30px;border:1px solid #aaa;font-size:22px;cursor:pointer;background-color:#fff}.square:hover{background-color:#f0f0f0}button{margin-top:10px;padding:8px 16px;border:none;background:#333;color:#fff;cursor:pointer;border-radius:5px}*{box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:20px;min-height:100vh;transition:all .3s ease}.game.classic{background:linear-gradient(135deg,#f5f5f5,#e8e8e8)}.game.modern{background:linear-gradient(135deg,#667eea,#764ba2)}.game.nature{background:linear-gradient(135deg,#c1dfc4,#deecdd)}.game.dark{background:linear-gradient(135deg,#2c3e50,#34495e);color:#ecf0f1}.settings-panel{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:20px;border-radius:15px;margin-bottom:30px;box-shadow:0 8px 25px #0000001a;display:flex;gap:40px;flex-wrap:wrap;border:1px solid rgba(255,255,255,.2)}.dark .settings-panel{background:#2c3e50f2;color:#ecf0f1}.setting-group{display:flex;flex-direction:column;gap:10px}.setting-group label{font-weight:600;font-size:14px;color:#333;margin-bottom:5px}.dark .setting-group label{color:#ecf0f1}.size-buttons,.theme-buttons{display:flex;gap:10px;flex-wrap:wrap}.size-button,.theme-button{padding:10px 20px;border:2px solid #ddd;background:#fff;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease;color:#333}.dark .size-button,.dark .theme-button{background:#34495e;border-color:#4a6572;color:#ecf0f1}.size-button:hover,.theme-button:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}.size-button.active,.theme-button.active{background:#007bff;color:#fff;border-color:#007bff;font-weight:600}.dark .size-button.active,.dark .theme-button.active{background:#3498db;border-color:#3498db;color:#fff}.game-content{display:flex;flex-direction:row;gap:30px;align-items:flex-start;max-width:1400px;margin:0 auto;padding:20px}.square{background:#deb887;border:1px solid #8b4513;float:left;font-size:20px;font-weight:700;line-height:34px;height:34px;width:34px;margin-right:-1px;margin-top:-1px;padding:0;text-align:center;transition:all .3s;color:#000;text-shadow:0px 0px 1px rgba(255,255,255,.5)}.game.board-9x9 .square{height:45px;width:45px;line-height:45px;font-size:24px}.game.board-13x13 .square{height:38px;width:38px;line-height:38px;font-size:22px}.game.board-15x15 .square{height:34px;width:34px;line-height:34px;font-size:20px}.modern .square{background:#e8f4f8;border-color:#b8d4e0;color:#2c3e50}.nature .square{background:#e8f5e8;border-color:#a8c6a8;color:#2d501c}.dark .square{background:#34495e;border-color:#4a6572;color:#ecf0f1;text-shadow:0px 0px 1px rgba(0,0,0,.5)}.square:hover{background:#e6c9a0;transform:scale(1.05);z-index:1;position:relative}.modern .square:hover{background:#d4e8f0}.nature .square:hover{background:#d4e8d4}.dark .square:hover{background:#4a6572}.mobile-square:hover{transform:none!important;background:inherit!important}.mobile-square:active{background:#e6c9a0!important;transform:scale(.95)!important}.modern .mobile-square:active{background:#d4e8f0!important}.nature .mobile-square:active{background:#d4e8d4!important}.dark .mobile-square:active{background:#4a6572!important}.winning-square{background-color:#90ee90!important;animation:pulse 1s infinite;transform:scale(1.1);z-index:2;position:relative}.modern .winning-square{background-color:#ff6b6b!important}.nature .winning-square{background-color:#a8e6a8!important}.dark .winning-square{background-color:#27ae60!important}@keyframes pulse{0%{background-color:#90ee90}50%{background-color:#76d476}to{background-color:#90ee90}}.modern @keyframes pulse{0%{background-color:#ff6b6b}50%{background-color:#ff5252}100%{background-color:#ff6b6b}}.nature @keyframes pulse{0%{background-color:#a8e6a8}50%{background-color:#8c8}100%{background-color:#a8e6a8}}.dark @keyframes pulse{0%{background-color:#27ae60}50%{background-color:#219a52}100%{background-color:#27ae60}}.board-row:after{clear:both;content:"";display:table}.board{display:inline-block;border:3px solid #8b4513;background:#deb887;padding:8px;box-shadow:0 6px 12px #00000026;border-radius:5px}.modern .board{border-color:#b8d4e0;background:#e8f4f8}.nature .board{border-color:#a8c6a8;background:#e8f5e8}.dark .board{border-color:#4a6572;background:#34495e}.status{margin-bottom:15px;font-size:24px;font-weight:700;color:#333;padding:12px 20px;background:#fff;border-radius:8px;text-align:center;box-shadow:0 4px 8px #0000001a;border-left:4px solid #007bff}.dark .status{background:#2c3e50;color:#ecf0f1;border-left-color:#3498db}.game-board-container{flex:1;display:flex;flex-direction:column;align-items:center}.board-header{width:100%;max-width:600px;margin-bottom:20px}.game-info{min-width:250px;max-width:300px;background:#fff;padding:20px;border-radius:10px;box-shadow:0 6px 12px #0000001a;display:flex;flex-direction:column;height:fit-content;max-height:80vh}.dark .game-info{background:#2c3e50;color:#ecf0f1}.game-controls{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.restart-button{background:#dc3545;color:#fff;border:none;padding:12px 20px;border-radius:6px;cursor:pointer;font-weight:700;font-size:16px;transition:all .2s}.restart-button:hover{background:#c82333;transform:translateY(-1px)}.sort-button{background:#6c757d;color:#fff;border:none;padding:10px 16px;border-radius:6px;cursor:pointer;transition:all .2s;font-size:14px}.sort-button:hover{background:#5a6268;transform:translateY(-1px)}.moves-section{flex:1;display:flex;flex-direction:column;min-height:200px}.moves-header{font-weight:700;margin-bottom:10px;padding-bottom:8px;border-bottom:2px solid #e9ecef;color:#333;font-size:16px}.dark .moves-header{color:#ecf0f1;border-bottom-color:#4a6572}.moves-list{padding-left:0;margin:0;overflow-y:auto;flex:1;max-height:400px;list-style:none}.moves-list li{margin-bottom:6px}.move-button{background:#f8f9fa;border:1px solid #dee2e6;padding:10px 12px;cursor:pointer;border-radius:6px;color:#000;width:100%;text-align:left;transition:all .2s;font-size:14px;font-weight:500}.dark .move-button{background:#34495e;border-color:#4a6572;color:#ecf0f1}.move-button:hover{background:#e9ecef;border-color:#adb5bd;transform:translate(2px)}.dark .move-button:hover{background:#4a6572}.move-button.current-move{background:#007bff;color:#fff;border-color:#007bff;font-weight:700}.dark .move-button.current-move{background:#3498db;border-color:#3498db;color:#fff}@media(max-width:1024px){.game-content{flex-direction:column;align-items:center;gap:20px}.game-info{max-width:100%;width:100%;max-height:none;order:2}.game-board-container{order:1;width:100%}.moves-list{max-height:200px}.settings-panel{flex-direction:column;gap:20px;padding:15px}}@media(max-width:768px){body{padding:10px}.game-content{padding:10px;gap:15px}.status{font-size:20px;padding:10px 16px;margin-bottom:10px}.square{height:24px;width:24px;line-height:24px;font-size:14px}.game.board-9x9 .square{height:32px;width:32px;line-height:32px;font-size:16px}.game.board-13x13 .square{height:26px;width:26px;line-height:26px;font-size:14px}.game.board-15x15 .square{height:22px;width:22px;line-height:22px;font-size:12px}.board{padding:4px;border-width:2px}.game-info{padding:15px}.game-controls{flex-direction:row;gap:10px}.restart-button,.sort-button{padding:10px 14px;font-size:14px;flex:1}.moves-header{font-size:14px}.move-button{padding:8px 10px;font-size:13px}}@media(max-width:480px){body{padding:5px}.game-content{padding:5px;gap:10px}.settings-panel{padding:12px;margin-bottom:15px;gap:15px}.setting-group label{font-size:13px}.size-button,.theme-button{padding:8px 12px;font-size:12px}.status{font-size:18px;padding:8px 12px}.square{height:20px;width:20px;line-height:20px;font-size:12px}.game.board-9x9 .square{height:28px;width:28px;line-height:28px;font-size:14px}.game.board-13x13 .square{height:22px;width:22px;line-height:22px;font-size:12px}.game.board-15x15 .square{height:18px;width:18px;line-height:18px;font-size:10px}.board{padding:3px}.game-info{padding:12px}.restart-button,.sort-button{padding:8px 12px;font-size:13px}.moves-section{min-height:150px}.moves-list{max-height:150px}}@media(max-width:375px){.square{height:18px;width:18px;line-height:18px;font-size:11px}.game.board-9x9 .square{height:26px;width:26px;line-height:26px;font-size:13px}.game.board-13x13 .square{height:20px;width:20px;line-height:20px;font-size:11px}.game.board-15x15 .square{height:16px;width:16px;line-height:16px;font-size:9px}.settings-panel{padding:10px}.size-buttons,.theme-buttons{gap:5px}.size-button,.theme-button{padding:6px 10px;font-size:11px}}