: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;place-items:center;min-width:320px;min-height:100vh}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.board{display:flex;flex-direction:column;border:4px solid #333;border-radius:4px}.board-row{display:flex}.square{width:60px;height:60px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .15s}.square.light{background-color:#f0d9b5}.square.dark{background-color:#b58863}.square:hover{filter:brightness(1.1)}.square.selected{outline:3px solid #7b61ff;outline-offset:-3px}.square.valid:after{content:"";width:16px;height:16px;border-radius:50%;background-color:#64c86480;position:absolute}.square{position:relative}.piece{width:44px;height:44px;border-radius:50%;box-shadow:0 3px 6px #0000004d}.piece.white{background:radial-gradient(circle at 30% 30%,#fff,#ccc);border:2px solid #999}.piece.black{background:radial-gradient(circle at 30% 30%,#555,#111);border:2px solid #000}.board.disabled{opacity:.7;pointer-events:none}.board.disabled .square{cursor:default}.rules{max-width:600px;text-align:left;padding:1rem}.rules h1{text-align:center;margin-bottom:1.5rem}.rules h2{color:#4ade80;margin-top:1.5rem;margin-bottom:.5rem;font-size:1.3rem}.rules h3{color:#888;margin-top:1rem;margin-bottom:.25rem;font-size:1rem}.rules p{margin:.5rem 0;line-height:1.6}.rules ul{margin:.5rem 0;padding-left:1.5rem}.rules li{margin:.25rem 0;line-height:1.5}.rule-formula{background-color:#333;padding:.75rem 1rem;border-radius:4px;font-family:monospace;text-align:center;margin:1rem 0}.back-button{display:block;margin:2rem auto 0;padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s}.back-button:hover{background-color:#22c55e}.mode-selection{display:flex;flex-direction:column;align-items:center;gap:1.5rem;padding:2rem}.mode-selection h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.mode-subtitle{color:#888;font-size:1.1rem;margin:0}.mode-buttons{display:flex;flex-direction:column;gap:1rem;width:100%;max-width:300px;margin-top:1rem}.mode-button{display:flex;flex-direction:column;align-items:center;gap:.25rem;padding:1.25rem 1.5rem;background-color:#2a2a2a;border:2px solid #444;border-radius:8px;cursor:pointer;transition:border-color .15s,background-color .15s}.mode-button:hover:not(.disabled){border-color:#4ade80;background-color:#333}.mode-button.disabled{opacity:.5;cursor:not-allowed}.mode-icon{font-size:1.5rem;font-weight:700;color:#4ade80}.mode-button.disabled .mode-icon{color:#666}.mode-name{font-size:1.2rem;font-weight:700;color:#f0f0f0}.mode-description{font-size:.85rem;color:#888}.turn-handoff-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000e6;display:flex;align-items:center;justify-content:center;z-index:100}.turn-handoff-card{background-color:#1a1a1a;border:2px solid #333;border-radius:12px;padding:2.5rem 3rem;text-align:center;max-width:320px}.turn-handoff-card h2{margin:0 0 1.5rem;font-size:1.5rem;color:#f0f0f0}.next-player{font-size:1.8rem;font-weight:700;padding:.75rem 1.5rem;border-radius:6px;margin:0;text-transform:capitalize}.next-player.white{background-color:#f0f0f0;color:#333}.next-player.black{background-color:#333;color:#f0f0f0;border:2px solid #555}.handoff-instruction{color:#888;font-size:.95rem;margin:1.5rem 0}.ready-button{padding:.9rem 2.5rem;font-size:1.1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s}.ready-button:hover{background-color:#22c55e}.create-room{display:flex;flex-direction:column;align-items:center;gap:1.5rem;padding:2rem}.create-room h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.room-subtitle{color:#888;font-size:1.1rem;margin:0}.creating-text{color:#888;font-size:1.1rem}.room-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s;margin-top:1rem}.join-room{display:flex;flex-direction:column;align-items:center;gap:1.5rem;padding:2rem}.join-room h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.join-subtitle{color:#888;font-size:1.1rem;margin:0}.joining-text{color:#888;font-size:1.1rem}.join-form{display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%;max-width:280px}.code-input{width:100%;padding:1rem;font-size:1.5rem;font-family:monospace;font-weight:700;text-align:center;letter-spacing:.25em;background-color:#2a2a2a;color:#f0f0f0;border:2px solid #444;border-radius:8px;outline:none;transition:border-color .15s}.code-input:focus{border-color:#4ade80}.code-input::placeholder{color:#555;letter-spacing:.25em}.error-text{color:#ef4444;font-size:.9rem;margin:0}.join-button{width:100%;padding:1rem 1.5rem;font-size:1.1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s,opacity .15s}.join-button:hover:not(:disabled){background-color:#22c55e}.join-button:disabled{opacity:.5;cursor:not-allowed}.join-button.secondary{background-color:transparent;color:#888;border:2px solid #444}.join-button.secondary:hover{border-color:#666;color:#aaa}.auth-button-container{display:flex;align-items:center;gap:.75rem}.auth-loading{color:#888;font-size:.875rem}.auth-signed-in{background:#ffffff1a;padding:.5rem .75rem;border-radius:8px}.auth-user-name{color:#fff;font-size:.875rem;font-weight:500}.auth-button{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border:none;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:background-color .2s,transform .1s}.auth-button:hover{transform:translateY(-1px)}.auth-button:active{transform:translateY(0)}.auth-button.google-signin{background:#fff;color:#333;box-shadow:0 2px 4px #0003}.auth-button.google-signin:hover{background:#f5f5f5}.google-icon{flex-shrink:0}.auth-button.sign-out{background:#fff3;color:#fff;font-size:.75rem;padding:.375rem .75rem}.auth-button.sign-out:hover{background:#ffffff4d}.migration-prompt{background:linear-gradient(135deg,#2d5a87,#1e3a5f);border-radius:12px;padding:1.25rem;margin-bottom:1.5rem;box-shadow:0 4px 12px #0000004d}.migration-success{background:linear-gradient(135deg,#2d8757,#1e5f3a);text-align:center}.migration-success p{margin:0;color:#fff;font-weight:500}.migration-content{text-align:center}.migration-text{color:#fff;font-size:1rem;font-weight:500;margin:0 0 .5rem}.migration-subtext{color:#fffc;font-size:.875rem;margin:0 0 1rem}.migration-error{color:#ff6b6b;font-size:.875rem;margin:0 0 1rem}.migration-buttons{display:flex;gap:.75rem;justify-content:center}.migration-button{padding:.625rem 1.25rem;border:none;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:background-color .2s,transform .1s}.migration-button:hover:not(:disabled){transform:translateY(-1px)}.migration-button:active:not(:disabled){transform:translateY(0)}.migration-button:disabled{opacity:.6;cursor:not-allowed}.migration-button.primary{background:#4caf50;color:#fff}.migration-button.primary:hover:not(:disabled){background:#45a049}.migration-button.secondary{background:#fff3;color:#fff}.migration-button.secondary:hover:not(:disabled){background:#ffffff4d}.online-lobby{display:flex;flex-direction:column;align-items:center;gap:1.5rem;padding:2rem}.online-lobby h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.lobby-subtitle{color:#888;font-size:1.1rem;margin:0}.connecting-text{color:#888;font-size:1.1rem}.error-text{color:#ef4444;font-size:1.1rem;margin:0}.error-detail{color:#888;font-size:.9rem;margin:0}.lobby-buttons{display:flex;flex-direction:column;gap:1rem;width:100%;max-width:280px;margin-top:1rem}.lobby-button{padding:1rem 1.5rem;font-size:1.1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s}.lobby-button:hover{background-color:#22c55e}.lobby-button.secondary{background-color:transparent;color:#888;border:2px solid #444}.lobby-button.secondary:hover{border-color:#666;color:#aaa}.my-games{width:100%;max-width:400px}.my-games h2{font-size:1.2rem;margin:0 0 .75rem;color:#ccc}.games-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.game-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;background-color:#2a2a2a;border-radius:6px;border:1px solid #444}.game-item .game-info{display:flex;flex-direction:column;gap:.25rem}.game-item .game-color{font-size:.85rem;font-weight:700;text-transform:capitalize}.game-item .game-color.white{color:#f0f0f0}.game-item .game-color.black{color:#888}.game-item .game-status{font-size:.8rem;color:#888}.resume-button{padding:.5rem 1rem;font-size:.9rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:4px;cursor:pointer;transition:background-color .15s}.resume-button:hover{background-color:#22c55e}.display-name-section{margin:.5rem 0}.name-display{display:flex;align-items:center;gap:.5rem}.name-label{color:#888;font-size:.9rem}.name-value{font-weight:700;color:#4ade80;font-size:1rem}.name-edit-button{padding:.25rem .5rem;font-size:.8rem;background-color:transparent;color:#888;border:1px solid #444;border-radius:4px;cursor:pointer;transition:border-color .15s,color .15s}.name-edit-button:hover{border-color:#666;color:#aaa}.name-edit-form{display:flex;align-items:center;gap:.5rem}.name-input{padding:.5rem .75rem;font-size:1rem;background-color:#2a2a2a;color:#f0f0f0;border:2px solid #444;border-radius:4px;width:150px}.name-input:focus{outline:none;border-color:#4ade80}.name-button{padding:.5rem .75rem;font-size:.9rem;font-weight:700;border:none;border-radius:4px;cursor:pointer;transition:background-color .15s}.name-button.save{background-color:#4ade80;color:#1a1a1a}.name-button.save:hover{background-color:#22c55e}.name-button.cancel{background-color:transparent;color:#888;border:1px solid #444}.name-button.cancel:hover{border-color:#666;color:#aaa}.lobby-header{display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%}@media(min-width:480px){.lobby-header{flex-direction:row;justify-content:center;gap:2rem}}.connection-status{position:fixed;top:1rem;right:1rem;display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background-color:#2a2a2a;border-radius:4px;font-size:.85rem;z-index:50}.connection-status .status-dot{width:8px;height:8px;border-radius:50%}.connection-status.connecting .status-dot{background-color:#fbbf24;animation:pulse 1s ease-in-out infinite}.connection-status.disconnected .status-dot{background-color:#888}.connection-status.error .status-dot{background-color:#ef4444}.connection-status .status-text{color:#888}@keyframes pulse{0%,to{opacity:.5}50%{opacity:1}}.online-game{display:flex;flex-direction:column;align-items:center;gap:1rem}.online-game h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.players-info{display:flex;align-items:center;gap:.75rem;font-size:1rem}.players-info .vs{color:#666;font-size:.8rem}.player-name{padding:.25rem .75rem;border-radius:4px}.player-name.white{background-color:#f0f0f0;color:#333}.player-name.black{background-color:#333;color:#f0f0f0;border:1px solid #555}.player-name.you{font-weight:700;box-shadow:0 0 0 2px #4ade80}.player-color{font-size:.9rem;padding:.25rem .75rem;border-radius:4px;text-transform:capitalize}.player-color.white{background-color:#f0f0f0;color:#333}.player-color.black{background-color:#333;color:#f0f0f0;border:1px solid #555}.turn-indicator{font-size:1.2rem;font-weight:700;padding:.5rem 1rem;border-radius:4px}.turn-indicator.your-turn{background-color:#4ade80;color:#1a1a1a}.turn-indicator.opponent-turn{background-color:#333;color:#888}.error-message{color:#ef4444;font-size:.9rem}.opponent-status{font-size:.85rem;padding:.25rem .75rem;border-radius:4px}.opponent-status.disconnected{background-color:#fef3c7;color:#92400e;border:1px solid #f59e0b}.rules-button,.leave-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:transparent;color:#888;border:2px solid #444;border-radius:6px;cursor:pointer;transition:border-color .15s,color .15s}.leave-button:hover{border-color:#ef4444;color:#ef4444}.waiting-subtitle{color:#888;font-size:1.1rem;margin:0}.share-link-container{display:flex;align-items:center;gap:1rem;background-color:#2a2a2a;padding:1rem 1.5rem;border-radius:8px;border:2px solid #444;max-width:100%;overflow:hidden}.share-link{font-size:.9rem;font-family:monospace;color:#4ade80;word-break:break-all}.room-code-alt{font-size:.9rem;color:#888}.room-code-inline{font-family:monospace;font-weight:700;color:#4ade80;letter-spacing:.1em}.room-code-container{display:flex;align-items:center;gap:1rem;background-color:#2a2a2a;padding:1rem 1.5rem;border-radius:8px;border:2px solid #444}.room-code{font-size:2rem;font-weight:700;font-family:monospace;letter-spacing:.25em;color:#4ade80}.copy-button{padding:.5rem 1rem;font-size:.9rem;font-weight:700;background-color:#333;color:#f0f0f0;border:1px solid #555;border-radius:4px;cursor:pointer;transition:background-color .15s}.copy-button:hover{background-color:#444}.waiting-text{color:#888;font-size:1rem;margin:0}.waiting-indicator{display:flex;gap:.5rem}.waiting-indicator .dot{width:8px;height:8px;border-radius:50%;background-color:#4ade80;animation:pulse 1.4s ease-in-out infinite}.waiting-indicator .dot:nth-child(2){animation-delay:.2s}.waiting-indicator .dot:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}.room-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s}.room-button:hover{background-color:#22c55e}.room-button.secondary{background-color:transparent;color:#888;border:2px solid #444}.room-button.secondary:hover{border-color:#666;color:#aaa}.app{display:flex;flex-direction:column;align-items:center;gap:1rem}h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.game-info{display:flex;flex-direction:column;align-items:center;gap:.5rem;margin-bottom:.5rem}.phase{font-size:.9rem;color:#888;text-transform:capitalize}.current-player{font-size:1.2rem;font-weight:700;padding:.5rem 1rem;border-radius:4px;text-transform:capitalize}.current-player.white{background-color:#f0f0f0;color:#333}.current-player.black{background-color:#333;color:#f0f0f0}.piece-counts{font-size:.9rem;color:#aaa}.game-result{font-size:1.4rem;font-weight:700;color:#4ade80;text-transform:capitalize}.game-buttons{display:flex;gap:1rem;margin-top:1rem}.reset-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:#4ade80;color:#1a1a1a;border:none;border-radius:6px;cursor:pointer;transition:background-color .15s}.reset-button:hover{background-color:#22c55e}.rules-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:transparent;color:#888;border:2px solid #444;border-radius:6px;cursor:pointer;transition:border-color .15s,color .15s}.rules-button:hover{border-color:#666;color:#aaa}.menu-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:transparent;color:#888;border:2px solid #444;border-radius:6px;cursor:pointer;transition:border-color .15s,color .15s}.menu-button:hover{border-color:#666;color:#aaa}.join-game-route{display:flex;flex-direction:column;align-items:center;gap:1.5rem;padding:2rem}.join-game-route h1{font-size:3.2em;line-height:1.1;margin-bottom:0}.join-game-route .status-text{color:#888;font-size:1.1rem}.join-game-route .error-text{color:#ef4444;font-size:1.1rem;margin:0}.join-game-route .error-detail{color:#888;font-size:.9rem;margin:0}.join-game-route .back-button{padding:.75rem 1.5rem;font-size:1rem;font-weight:700;background-color:transparent;color:#888;border:2px solid #444;border-radius:6px;cursor:pointer;transition:border-color .15s,color .15s}.join-game-route .back-button:hover{border-color:#666;color:#aaa}.auth-callback{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#1a1a2e,#16213e)}.auth-callback-content{text-align:center;color:#fff}.auth-callback-content p{margin-top:1rem;font-size:1.125rem}.auth-callback-spinner{width:48px;height:48px;border:4px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto}@keyframes spin{to{transform:rotate(360deg)}}
