.chess-game-container{min-height:100vh;background:linear-gradient(135deg,#1e3c72 0%,#2a5298 100%);padding:40px 20px;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.chess-header{text-align:center;margin-bottom:40px;color:#fff}.chess-header h1{font-size:3.5rem;margin:0;font-weight:700;text-shadow:2px 2px 4px rgba(0,0,0,.3);letter-spacing:2px}.chess-header p{font-size:1.2rem;margin:10px 0 0;opacity:.9;font-weight:300;letter-spacing:1px}.chess-content{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:1400px;margin:0 auto;align-items:start}@media (max-width: 1200px){.chess-content{grid-template-columns:1fr;gap:30px}}@media (max-width: 768px){.chess-header h1{font-size:2.5rem}.chess-header p{font-size:1rem}.chess-content{padding:0 10px}}.chess-board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);gap:0;width:100%;max-width:600px;aspect-ratio:1;background:#333;border:8px solid #2c3e50;border-radius:8px;box-shadow:0 20px 60px #00000080,inset 0 0 20px #0000004d;margin:0 auto}@media (max-width: 768px){.chess-board{max-width:100%;border-width:6px}}.square{aspect-ratio:1;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:all .2s ease;font-size:3rem;-webkit-user-select:none;user-select:none}.square.light{background-color:#f0d9b5}.square.dark{background-color:#b58863}.square.selected{background-color:#baca44!important;box-shadow:inset 0 0 0 3px #8ca32e}.square.last-move{background-color:#c9d726!important;opacity:.8}.square.valid-move{position:relative}.move-indicator{width:20px;height:20px;background-color:#32323299;border-radius:50%;position:absolute;pointer-events:none}.square:hover:not(.selected){opacity:.85}.piece{display:flex;align-items:center;justify-content:center;width:100%;height:100%;text-shadow:0 2px 4px rgba(0,0,0,.3);font-weight:700;filter:drop-shadow(0 2px 3px rgba(0,0,0,.4));animation:pieceAppear .3s ease}.piece.white{color:#f5f5f5;text-shadow:1px 1px 2px rgba(0,0,0,.5)}.piece.black{color:#2c3e50;text-shadow:1px 1px 2px rgba(255,255,255,.3)}@keyframes pieceAppear{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}@media (max-width: 768px){.square{font-size:2rem}.move-indicator{width:15px;height:15px}}.game-info{background:white;border-radius:12px;padding:30px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;gap:25px;height:fit-content;max-height:600px;overflow-y:auto}.player-status{display:flex;justify-content:center}.player-indicator{display:flex;align-items:center;gap:15px;padding:15px 25px;border-radius:10px;background:linear-gradient(135deg,#f5f5f5 0%,#e8e8e8 100%);border:2px solid #ddd;flex:1;max-width:300px}.player-indicator.white{border-color:#f0d9b5;background:linear-gradient(135deg,#fffaf0 0%,#f5e6d3 100%)}.player-indicator.black{border-color:#b58863;background:linear-gradient(135deg,#e8dcc8 0%,#d4c4a8 100%)}.player-circle{width:40px;height:40px;border-radius:50%;background:white;border:3px solid;animation:pulse 2s infinite}.player-indicator.white .player-circle{border-color:#f0d9b5;background:#f0d9b5}.player-indicator.black .player-circle{border-color:#b58863;background:#b58863}@keyframes pulse{0%,to{box-shadow:0 0 #0000001a}50%{box-shadow:0 0 0 8px #0000}}.player-text{flex:1}.current-label{margin:0;font-size:.9rem;color:#666;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.player-name{margin:5px 0 0;font-size:1.4rem;font-weight:700;color:#2c3e50}.game-stats{display:grid;grid-template-columns:1fr 1fr;gap:15px}.stat-item{background:linear-gradient(135deg,#f9f9f9 0%,#f0f0f0 100%);padding:15px;border-radius:8px;border:1px solid #e0e0e0;display:flex;flex-direction:column;gap:8px}.stat-label{font-size:.85rem;color:#666;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:1.8rem;font-weight:700;color:#2c3e50}.move-history{border-top:2px solid #e0e0e0;padding-top:20px}.move-history h3{margin:0 0 15px;font-size:1.1rem;color:#2c3e50;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.moves-list{display:flex;flex-direction:column;gap:8px;max-height:200px;overflow-y:auto;padding-right:8px}.moves-list::-webkit-scrollbar{width:6px}.moves-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.moves-list::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}.moves-list::-webkit-scrollbar-thumb:hover{background:#999}.move-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:#f9f9f9;border-radius:6px;border-left:3px solid #2c3e50;font-size:.9rem}.move-number{font-weight:700;color:#2c3e50;min-width:25px}.move-notation{font-family:Courier New,monospace;color:#555;flex:1;font-weight:500}.capture-indicator{color:#e74c3c;font-weight:700}.no-moves{text-align:center;color:#999;font-style:italic;padding:20px 0;margin:0}.game-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;border-top:2px solid #e0e0e0;padding-top:20px}.btn{padding:12px 20px;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:.5px;display:flex;align-items:center;justify-content:center;gap:8px}.btn-undo{background:linear-gradient(135deg,#3498db 0%,#2980b9 100%);color:#fff;border:2px solid #2980b9}.btn-undo:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #3498db4d}.btn-undo:disabled{opacity:.5;cursor:not-allowed}.btn-reset{background:linear-gradient(135deg,#27ae60 0%,#229954 100%);color:#fff;border:2px solid #229954}.btn-reset:hover{transform:translateY(-2px);box-shadow:0 8px 20px #27ae604d}.btn:active:not(:disabled){transform:translateY(0)}@media (max-width: 768px){.game-info{max-height:none;padding:20px}.game-stats{grid-template-columns:1fr}.moves-list{max-height:150px}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body,#root{height:100%;width:100%}#root{display:flex;flex-direction:column}