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

#game-wrapper {
    position: relative;
    box-shadow: 0 0 50px rgba(0, 150, 255, 0.2);
    border: 2px solid #333;
}

canvas {
    display: block;
    background: radial-gradient(circle at center, #1a1a2e 0%, #000000 100%);
    cursor: none; /* Hide cursor during gameplay for immersion */
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}