:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--secondary-color: #64748b;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-card: #1e293b;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--border-color: #334155;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#0f172a,#1e293b);color:var(--text-primary);min-height:100vh;line-height:1.6}#root{min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}h1{font-size:2.5rem;background:linear-gradient(135deg,#60a5fa,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:1.75rem}h3{font-size:1.25rem}button{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-hover) 100%);color:#fff;border:none;border-radius:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow)}button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}button:active{transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}a{color:var(--primary-color);text-decoration:none;transition:color .2s ease}a:hover{color:#60a5fa}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:1rem;padding:1.5rem;box-shadow:var(--shadow-lg);transition:all .3s ease}.card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.badge{display:inline-block;padding:.25rem .75rem;border-radius:9999px;font-size:.875rem;font-weight:600;background:var(--bg-secondary);border:1px solid var(--border-color)}.badge-success{background:#10b98133;color:var(--success-color);border-color:var(--success-color)}.badge-warning{background:#f59e0b33;color:var(--warning-color);border-color:var(--warning-color)}.badge-info{background:#2563eb33;color:#60a5fa;border-color:var(--primary-color)}.status-indicator{display:inline-block;width:.75rem;height:.75rem;border-radius:50%;margin-right:.5rem}.status-indicator.connected{background:var(--success-color);box-shadow:0 0 8px var(--success-color)}.status-indicator.disconnected{background:var(--danger-color);box-shadow:0 0 8px var(--danger-color)}.status-indicator.connecting{background:var(--warning-color);box-shadow:0 0 8px var(--warning-color);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}body>div[style*="position: fixed"] img{transform:translate(-50%,-50%)}body>div[style*="position: fixed"][style*="pointer-events: none"]{transform:translate(-50%,-50%)}.react-chessboard-piece,[data-piece]{cursor:grab}.react-chessboard-piece:active,[data-piece]:active{cursor:grabbing}