:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#302e2c;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{margin:0;display:flex;justify-content:center;min-width:320px;min-height:100vh}#root{width:100%;display:flex;justify-content:center}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:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.chess-game{display:flex;flex-direction:column;align-items:center;gap:16px;padding:20px}.chess-game h1{margin:0;font-size:2rem;color:#fff}.status-box{padding:12px 24px;border-radius:6px;font-weight:600;font-size:1.1rem;min-width:200px;text-align:center;transition:background-color .2s ease}.status-normal{background-color:#629924;color:#fff}.status-check{background-color:#e6912c;color:#fff}.status-thinking{background-color:#e6912c;color:#fff;animation:pulse 1s infinite}.status-gameover{background-color:#8b4513;color:#fff}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.board-container{margin:12px 0}.controls{display:flex;gap:12px}.btn{background-color:#444;color:#fff;border:none;padding:12px 24px;border-radius:6px;cursor:pointer;font-size:1rem;font-weight:500;transition:background-color .2s ease}.btn:hover:not(:disabled){background-color:#555}.btn:disabled{background-color:#333;cursor:not-allowed;opacity:.6}.move-history{margin-top:16px;padding:16px;background-color:#333;border-radius:8px;max-width:400px;width:100%}.move-history h3{margin:0 0 12px;font-size:1rem;color:#aaa}.moves{display:flex;flex-wrap:wrap;gap:4px 8px;font-family:monospace;font-size:.95rem}.move{color:#ddd}.move-number{color:#888;margin-right:2px}