* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #000;
    font-family: 'Courier New', monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
    background: radial-gradient(circle, #001a00 0%, #000 100%);
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 800px;
    padding: 20px;
}

.header {
    width: 100%;
    margin-bottom: 20px;
}

.header h1 {
    color: #0f0;
    text-align: center;
    font-size: 36px;
    margin-bottom: 15px;
    text-shadow: 0 0 20px #0f0;
    letter-spacing: 5px;
}

.stats {
    display: flex;
    justify-content: space-around;
    gap: 20px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0f0;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.stat .label {
    color: #0f0;
    font-size: 12px;
    opacity: 0.8;
}

.stat span:last-child {
    color: #0f0;
    font-size: 20px;
    font-weight: bold;
    text-shadow: 0 0 10px #0f0;
}

#game-canvas {
    border: 3px solid #0f0;
    border-radius: 8px;
    background: #000;
    box-shadow: 0 0 30px rgba(0, 255, 0, 0.4);
    cursor: none;
    touch-action: none;
    max-width: 100%;
    height: auto;
}

.overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.95);
    border: 3px solid #0f0;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 0 40px rgba(0, 255, 0, 0.5);
    max-width: 500px;
}

.overlay h2 {
    color: #0f0;
    font-size: 32px;
    margin-bottom: 20px;
    text-shadow: 0 0 15px #0f0;
    letter-spacing: 3px;
}

.overlay p {
    color: #0f0;
    font-size: 16px;
    margin: 10px 0;
    line-height: 1.6;
}

.overlay button {
    margin-top: 20px;
    padding: 15px 40px;
    background: #000;
    color: #0f0;
    border: 2px solid #0f0;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.overlay button:hover {
    background: #0f0;
    color: #000;
    box-shadow: 0 0 20px #0f0;
    transform: scale(1.05);
}

.hidden {
    display: none;
}

.controls-info {
    margin-top: 20px;
    color: #0f0;
    text-align: center;
    font-size: 14px;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .game-container {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 24px;
        letter-spacing: 2px;
    }
    
    .stats {
        gap: 10px;
        padding: 10px;
    }
    
    .stat span:last-child {
        font-size: 16px;
    }
    
    .overlay {
        padding: 30px 20px;
        max-width: 90%;
    }
    
    .overlay h2 {
        font-size: 24px;
    }
    
    .overlay p {
        font-size: 14px;
    }
    
    #game-canvas {
        max-width: 100%;
        height: auto;
    }
}