.cell{width:100%;height:100%;background-color:#f6f6f6;border:.5px solid #888;position:relative;display:flex;justify-content:center;align-items:center;cursor:pointer}.cell[aria-disabled=true]{cursor:default}.cell:hover:not([aria-disabled=true]){background-color:#e3e3e3}.cell.highlighted{background-color:#ccc}.piece{width:70%;height:70%;border-radius:50%;position:relative;z-index:2;box-shadow:0 2px 5px #0000004d}.piece.black{background-color:#333;border:2px solid #000}.piece.white{background-color:#fff;border:2px solid #ccc}.wall{position:absolute;background-color:#000;z-index:3}.wall.top{top:-3px;left:0;width:100%;height:6px}.wall.right{top:0;right:-3px;width:6px;height:100%}.wall.bottom{bottom:-3px;left:0;width:100%;height:6px}.wall.left{top:0;left:-3px;width:6px;height:100%}.hovered-wall{position:absolute;background-color:#00000080;z-index:3;cursor:pointer}.hovered-wall:hover{background-color:#00000080}.hovered-wall.top{top:-3px;left:0;width:100%;height:6px}.hovered-wall.right{top:0;right:-3px;width:6px;height:100%}.hovered-wall.bottom{bottom:-3px;left:0;width:100%;height:6px}.hovered-wall.left{top:0;left:-3px;width:6px;height:100%}.possible-wall{position:absolute;background-color:#5a5a5a4d;cursor:pointer;z-index:3}.possible-wall:hover{background-color:#00000080}.possible-wall.top{top:-3px;left:0;width:100%;height:6px}.possible-wall.right{top:0;right:-3px;width:6px;height:100%}.possible-wall.bottom{bottom:-3px;left:0;width:100%;height:6px}.possible-wall.left{top:0;left:-3px;width:6px;height:100%}.coordinates{position:absolute;top:2px;left:2px;font-size:8px;color:#666;z-index:1}.board-container{display:flex;flex-direction:column;align-items:center;justify-content:center;margin:20px auto;width:100%;max-width:600px}.board{display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(7,1fr);gap:0;background-color:#f6f6f6;position:relative;width:min(90vw,50vh);height:min(90vw,50vh);aspect-ratio:1 / 1;box-shadow:0 0 4px 4px #d3d3d3}.board.current-player{box-shadow:0 0 4px 4px #90ee90}@media screen and (max-width: 768px){.board-container{width:100%;max-width:100%}.board{width:min(90vw,90vh);height:min(90vw,90vh);margin-left:auto;margin-right:auto}}.status{font-size:1.2rem;font-weight:700;margin-bottom:10px;text-align:center;display:flex;align-items:center;justify-content:center;gap:10px}.current-player-indicator{display:flex;align-items:center;gap:8px}.player-stone{width:24px;height:24px;border-radius:50%;box-shadow:0 2px 4px #0003}.player-stone.black{background-color:#333;border:2px solid #000}.player-stone.white{background-color:#fff;border:2px solid #ccc}.turn-text{font-weight:700}.instruction{margin-top:10px;font-style:italic;color:#666;text-align:center}.mode-selection{display:flex;gap:10px;margin-top:15px;justify-content:center}.mode-selection button{padding:8px 15px;background-color:#4a752c;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:background-color .2s}.mode-selection button:hover{background-color:#5c8f38}.mode-selection button:last-child{background-color:#888}.mode-selection button:last-child:hover{background-color:#666}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background-color:#fff;padding:20px;border-radius:8px;max-width:90%;max-height:90vh;width:500px;overflow-y:auto;box-shadow:0 4px 8px #0003;scrollbar-width:none;-ms-overflow-style:none}.modal-content::-webkit-scrollbar{display:none}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;border-bottom:1px solid #eee;padding-bottom:10px}.modal-title{font-size:1.4rem;font-weight:700;margin:0;text-align:start}.close-button{background:none;border:none;font-size:1.5rem;cursor:pointer;color:#666;padding:8px}.modal-body{margin-bottom:20px}.modal-body h2{font-size:1.2rem;margin-top:15px;margin-bottom:10px;color:#333;text-align:start}.modal-body p{margin:8px 0;line-height:1.5}.modal-body ul{margin:10px 0;padding-left:20px;text-align:start}.modal-body li{margin:5px 0;text-align:start}.result-modal{text-align:center}.result-winner{margin:20px 0;display:flex;flex-direction:column;align-items:center}.result-winner h3{font-size:1.6rem;margin:0 0 15px;color:#333}.winner-stone{width:40px;height:40px;border-radius:50%;margin:10px auto}.winner-stone.black{background-color:#333}.winner-stone.white{background-color:#fff;border:1px solid #ccc}.result-scores{display:flex;flex-direction:column;gap:15px;margin:20px 0}.score-item{display:flex;align-items:center;justify-content:center;gap:10px}.player-stone{width:20px;height:20px;border-radius:50%}.score-label{font-weight:700}.score-value{font-size:1.2rem}.restart-button{background-color:#3d6b1d;color:#fff;border:none;border-radius:4px;padding:10px 20px;font-size:1rem;cursor:pointer;margin-top:15px}.restart-button:hover{opacity:.9}@media (max-width: 768px){.modal-content{max-width:95%;width:95%;max-height:80vh;padding:15px}.modal-title{font-size:1.2rem}}.timer-container{display:flex;justify-content:space-between;align-items:center;width:100%;max-width:400px;margin:15px auto;padding:10px 15px;background-color:#f5f5f5;border-radius:8px;border:1px solid #ccc}.timer-container.current-player{border:2px solid #000}.timer-info{display:flex;flex-direction:column;align-items:flex-start}.player-info{display:flex;align-items:center;gap:10px}.player-label{font-weight:700;font-size:1rem;color:#333}.player-stone{width:1.5rem;height:1.5rem;border-radius:50%}.player-stone.black{background-color:#333}.player-stone.white{background-color:#fff;border:1px solid #ccc}.timer{display:flex;justify-content:center;align-items:center;padding:8px 15px;border-radius:6px;background-color:#fff;width:55%;box-shadow:0 2px 6px #00000026}.time-display{font-size:1.4rem;font-family:monospace;font-weight:700;color:#333}.timer.warning .time-display{color:#ff3b30}.timer.overtime .time-display{color:#ff3b30;animation:ziiing 2.4s infinite;transform-origin:center}@keyframes ziiing{0%,to{transform:translate(0);filter:blur(0px)}5%{transform:translate(-5px) rotate(-2deg);filter:blur(.5px)}10%{transform:translate(5px) rotate(2deg);filter:blur(.5px)}15%{transform:translate(-5px) rotate(-2deg);filter:blur(.5px)}20%{transform:translate(5px) rotate(2deg);filter:blur(.5px)}25%{transform:translate(0);filter:blur(0px)}40%{transform:translate(0);filter:blur(0px)}45%{transform:translate(-5px) rotate(-2deg);filter:blur(.5px)}50%{transform:translate(5px) rotate(2deg);filter:blur(.5px)}55%{transform:translate(-5px) rotate(-2deg);filter:blur(.5px)}60%{transform:translate(5px) rotate(2deg);filter:blur(.5px)}65%{transform:translate(0);filter:blur(0px)}80%{transform:translate(0);filter:blur(0px)}}@media screen and (max-width: 768px){.timer-container{max-width:100%;padding:8px 12px}.time-display{font-size:1.2rem}.player-label{font-size:.9rem}}.time-travel{margin-top:20px;padding:10px;border:1px solid #ddd;border-radius:5px;background-color:#f9f9f9;width:300px;transition:all .3s ease}.time-travel-in-past{border-color:#fb0;background-color:#fffbeb;box-shadow:0 0 8px #ffbb004d}.time-travel-indicator{font-size:12px;color:#ff6b01;font-weight:400;margin-left:5px}.time-travel-controls{display:flex;justify-content:space-between;margin-bottom:10px}.time-travel-button{padding:8px 12px;background-color:#4a4a4a;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:14px;transition:background-color .2s}.time-travel-button:hover:not(:disabled){background-color:#2e2e2e}.time-travel-button:disabled{background-color:#bbb;cursor:not-allowed}.time-travel-history{max-height:300px;overflow-y:auto}.time-travel-history h3{margin-top:0;font-size:16px;color:#333}.time-travel-list{list-style:none;padding:0;margin:0}.time-travel-item{padding:8px 10px;border-bottom:1px solid #eee;cursor:pointer;font-size:14px;transition:background-color .1s}.time-travel-item:hover{background-color:#f0f0f0}.time-travel-item.active{background-color:#e6f7ff;border-left:3px solid #1890ff}.time-travel-item.future{color:#999;font-style:italic}.time-travel-empty{color:#999;font-style:italic;text-align:center}.game-container{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;max-width:800px;margin:0 auto;padding:20px;box-sizing:border-box}.game-container h1{color:#333;font-size:2.5rem;text-align:center;margin:0}.game-container h2{color:#868686;font-size:2rem;text-align:center;margin:0}.game-header{width:100%}.game-header-title{display:flex;align-items:center;justify-content:center;gap:.5rem;margin-bottom:20px}.pvp-status-message{font-size:.875rem;margin-bottom:20px;color:#7e7e7e;text-align:center;width:100%}.game-controls{position:fixed;top:16px;right:16px;display:flex;gap:8px}.home-button{padding:8px 16px;background-color:#000;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:opacity .3s}.invite-button{padding:8px 16px;background-color:#1e3297;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:opacity .3s}.rules-button{padding:8px 16px;background-color:#3d6b1d;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:opacity .3s}.time-travel-toggle-button{padding:8px 16px;background-color:#2c4b8a;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:all .3s}.time-travel-toggle-button:hover{background-color:#1e3663}@keyframes pulse{0%{box-shadow:0 0 #ff6b0166}70%{box-shadow:0 0 0 6px #ff6b0100}to{box-shadow:0 0 #ff6b0100}}.rules-button:hover,.invite-button:hover,.home-button:hover{opacity:.8}.game-layout{display:flex;flex-direction:row;align-items:flex-start;justify-content:center;gap:20px;width:100%}.timer-layout{display:flex;align-items:center;gap:1rem;width:100%;margin-top:1rem}@media screen and (max-width: 768px){.game-container{padding:10px;width:100%;max-width:100%}.game-container h1{font-size:1.5rem;margin-bottom:15px}.game-container h2{font-size:1rem;margin-bottom:15px}.game-layout{flex-direction:column;align-items:center}.game-controls{position:static;display:flex;align-items:center;justify-content:center;gap:8px}.time-travel{width:100%;max-width:100%}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:#fff;border-radius:15px;padding:2rem;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 10px 30px #0000004d}.modal-content h2{text-align:center;margin-bottom:2rem;color:#333;font-size:1.5rem}.mode-buttons{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.mode-button{display:flex;flex-direction:column;align-items:center;padding:1.5rem;border:2px solid #e0e0e0;border-radius:10px;background:#fff;cursor:pointer;transition:all .3s ease;text-align:center}.mode-button:hover{border-color:#4caf50;transform:translateY(-2px);box-shadow:0 5px 15px #0000001a}.mode-button.create:hover{border-color:#4caf50;background:#f8fff8}.mode-button.join:hover{border-color:#2196f3;background:#f8feff}.mode-icon{font-size:2rem;margin-bottom:.5rem}.mode-title{font-size:1.2rem;font-weight:700;margin-bottom:.5rem;color:#333}.mode-description{font-size:.9rem;color:#666;line-height:1.4}.close-button{width:100%;padding:.75rem;background:#f5f5f5;border:1px solid #ddd;border-radius:5px;cursor:pointer;font-size:1rem;transition:background .3s ease}.close-button:hover{background:#e0e0e0}.join-form{display:flex;flex-direction:column;gap:1rem}.join-form label{font-weight:700;color:#333;margin-bottom:.5rem}.room-id-input{padding:.75rem;border:2px solid #e0e0e0;border-radius:5px;font-size:1rem;text-align:center;text-transform:uppercase;letter-spacing:2px;font-weight:700}.room-id-input:focus{outline:none;border-color:#2196f3}.join-actions{display:flex;gap:1rem;margin-top:1rem}.back-button,.join-submit-button{flex:1;padding:.75rem;border:none;border-radius:5px;font-size:1rem;cursor:pointer;transition:all .3s ease}.back-button{background:#f5f5f5;color:#666;border:1px solid #ddd}.back-button:hover{background:#e0e0e0}.join-submit-button{background:#255e8b;color:#fff}.join-submit-button:hover:not(:disabled){background:#1976d2}.join-submit-button:disabled{background:#ccc;cursor:not-allowed}*{box-sizing:border-box}#root{max-width:1280px;margin:0 auto;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}.app{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;max-width:800px;margin:0 auto;padding:20px;display:flex;flex-direction:column;align-items:center}header{text-align:center;margin-bottom:20px}h1{font-size:2.5rem;color:#333;margin:0}.controls{margin:20px 0}button{padding:10px 20px;font-size:1rem;background-color:#4a752c;color:#fff;border:none;border-radius:5px;cursor:pointer;transition:background-color .2s}footer{margin-top:30px;border-top:1px solid #ddd;padding-top:20px;width:100%}.rules{line-height:1.5;color:#555;padding-left:20px}.rules li{margin-bottom:10px}:root{font-family:Inter,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}body{margin:0;display:flex;min-width:320px;min-height:100vh;background:#fff;color:#000}#root{width:100%;height:100%}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}button{background-color:#f9f9f9}}