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

body, html {
    width: 100%;
    height: 100%;
    background-color: #000;
    overflow: hidden;
    font-family: 'Courier New', Courier, monospace;
}

#game-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #111;
}

#game-canvas {
    /* Hide the default cursor so we can draw our own crosshair */
    cursor: none; 
    display: block;
    max-width: 100%;
    max-height: 100%;
    /* Keep pixel art crisp if needed, though we use vector drawing */
    image-rendering: pixelated; 
}