body{background-color:#1a1a1a;display:flex;justify-content:center;align-items:center;height:100vh;margin:0;font-family:Arial,sans-serif}.game-container{display:flex;gap:20px}#game-board{border:2px solid #333;background-color:#000}.game-info{color:#fff;padding:20px;background-color:#333;border-radius:5px}.next-piece{margin-top:20px;width:100px;height:100px;background-color:#000;position:relative}.ai-controls{margin-top:20px}.btn{padding:8px 16px;border:2px solid #fff;background:transparent;color:#fff;cursor:pointer;border-radius:4px;transition:all .3s}.btn:hover{background:#fff;color:#333}