body {
    margin: 0;
    padding: 0;
    background-color: #111;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    font-family: 'Courier New', Courier, monospace;
}

canvas {
    border: 2px solid #fff;
    background-color: #000;
    /* Responsive sizing handled in JS or max-width here if needed */
    max-width: 100%;
    max-height: 100%;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}