:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{font-family:Inter,sans-serif;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background-color:#f3f4f6;margin:0;padding:20px;box-sizing:border-box}h1{font-size:2.25rem;font-weight:700;margin-bottom:1.5rem;color:#4338ca;border-radius:.5rem;padding:.5rem;box-shadow:0 4px 6px #0000001a;text-align:center}.message-container{background-color:#fff;padding:1.5rem;border-radius:.5rem;box-shadow:0 10px 15px #0000001a;margin-bottom:1rem;text-align:center;position:relative}.message-text{font-size:1.125rem;font-weight:500;color:#374151;margin-bottom:1rem}.action-buttons{display:flex;gap:1rem;justify-content:center;margin-top:1rem;margin-bottom:1rem}.play-again-button,.undo-button,.start-game-button{padding:.75rem 1.5rem;background-color:#4f46e5;color:#fff;font-weight:600;border-radius:.5rem;box-shadow:0 4px 6px #0000001a;transition:all .3s ease-in-out;transform:scale(1);border:none;cursor:pointer}.play-again-button:hover,.undo-button:hover:not(:disabled),.start-game-button:hover:not(:disabled){background-color:#4338ca;transform:scale(1.05)}.undo-button:disabled,.start-game-button:disabled{background-color:#a3a3a3;cursor:not-allowed;transform:none}svg{background-color:#15803d;border-radius:.5rem;box-shadow:0 20px 25px #00000040;flex-shrink:0;max-width:100%;max-height:100%;flex-grow:1;width:100%;min-width:860px;min-height:370px}.domino-tile{cursor:pointer}.domino-selected rect{stroke:#4f46e5;stroke-width:4}.empty-slot{fill:#ffffff1a;stroke:#000;stroke-width:2;stroke-dasharray:5,5;rx:8;ry:8}.empty-slot.clickable{cursor:pointer}.game-info{margin-top:.5rem;font-size:1.1rem;font-weight:600;color:#1a202c;display:flex;justify-content:center;gap:2rem}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:grid;place-items:center;z-index:1000;visibility:hidden;opacity:0;transition:visibility 0s,opacity .3s ease-in-out}.modal-overlay.visible{visibility:visible;opacity:1}.modal-content{background-color:#fff;padding:2rem;border-radius:.75rem;box-shadow:0 15px 25px #0003;max-width:400px;width:90%;text-align:center;display:flex;flex-direction:column;gap:1.25rem;transform:translateY(-20px);transition:transform .3s ease-out}.modal-overlay.visible .modal-content{transform:translateY(0)}.modal-header{font-size:1.75rem;font-weight:700;color:#374151;margin-bottom:.5rem}.modal-body{display:flex;flex-direction:column;gap:.75rem;align-items:center}.modal-text{font-size:1rem;color:#6b7280;margin:.5rem 0}.modal-button{padding:.75rem 1.25rem;background-color:#3b82f6;color:#fff;font-weight:600;border-radius:.375rem;border:none;cursor:pointer;transition:background-color .2s ease-in-out,transform .2s ease-in-out;width:100%}.modal-button:hover{background-color:#2563eb;transform:translateY(-2px)}#dialog-game-number-input{padding:.5rem;border:1px solid #d1d5db;border-radius:.25rem;text-align:center;font-size:1rem;width:calc(100% - 1rem);box-sizing:border-box}.action-buttons .play-again-button{background-color:#10b981}.action-buttons .play-again-button:hover{background-color:#059669}.modal-button.cancel-button{background-color:#6b7280}.modal-button.cancel-button:hover{background-color:#4b5563}.dialog-message{color:#dc2626;font-size:.9rem;margin-top:-.5rem;min-height:1.5em}.radio-option{display:flex;align-items:center;justify-content:center;gap:.5rem;margin-bottom:.5rem;width:100%}.radio-option label{font-size:1rem;color:#374151;cursor:pointer;-webkit-user-select:none;user-select:none}.radio-option input[type=radio]{appearance:none;width:1.25rem;height:1.25rem;border:2px solid #9ca3af;border-radius:50%;background-color:#fff;transition:border-color .2s ease-in-out,background-color .2s ease-in-out;cursor:pointer}.radio-option input[type=radio]:checked{border-color:#3b82f6;background-color:#3b82f6;box-shadow:inset 0 0 0 4px #fff}.radio-option input[type=radio]:focus{outline:none;box-shadow:0 0 0 3px #3b82f666}#specific-game-controls{display:flex;flex-direction:column;gap:.5rem;align-items:center;width:100%;transition:opacity .3s ease-in-out}#specific-game-controls.disabled{opacity:.5;pointer-events:none}#dialog-game-number-input:disabled{background-color:#e5e7eb;cursor:not-allowed}.game-share-button{padding:.75rem 1.5rem;background-color:#ef4444;color:#fff;font-weight:600;border-radius:.5rem;box-shadow:0 4px 6px #0000001a;transition:all .3s ease-in-out;transform:scale(1);border:none;cursor:pointer;margin:1rem auto;display:block}.game-share-button:hover{background-color:#dc2626;transform:scale(1.05)}.game-share-button.copied{background-color:#28a745;color:#fff}.share-message-box{background-color:#e0f2f7;border:1px solid #a7d9f0;border-radius:.5rem;padding:1rem;margin-bottom:1rem;width:100%;box-sizing:border-box;text-align:left;word-wrap:break-word}.share-message-box p{font-size:1rem;color:#212121;margin:0;line-height:1.4}