body {
            margin: 0;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            font-family: 'Arial', sans-serif;
            color: white;
        }
        
        .game-container {
            text-align: center;
            background: rgba(255, 255, 255, 0.1);
            padding: 30px;
            border-radius: 20px;
            backdrop-filter: blur(10px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        
        h1 {
            margin: 0 0 20px 0;
            font-size: 2.5em;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        
        .stats {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            font-size: 1.1em;
        }
        
        .score { color: #FFD700; }
        .lives { color: #FF6B6B; }
        .level { color: #4ECDC4; }
        
        canvas {
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-radius: 10px;
            background: #000;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .controls {
            margin-top: 20px;
            font-size: 0.9em;
            opacity: 0.8;
        }
        
        .game-over {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(0, 0, 0, 0.9);
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            display: none;
            border: 2px solid #FFD700;
        }
        
        button {
            background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
            border: none;
            padding: 12px 25px;
            border-radius: 25px;
            color: white;
            font-size: 1em;
            cursor: pointer;
            margin-top: 15px;
            transition: transform 0.2s;
        }
        
        button:hover {
            transform: scale(1.05);
        }