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

body {
    font-family: 'Courier New', monospace;
    background-color: #000;
    color: #fff;
    min-height: 100vh;
}

#gameCanvas {
    border: 2px solid #333;
    background-color: #000;
    display: block;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

#gameOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    text-align: center;
}

#gameOverlay.hidden {
    display: none;
}

.overlay-content {
    padding: 2rem;
}

#overlayTitle {
    letter-spacing: 0.3em;
    text-shadow: 0 0 10px #fff;
}

#overlayMessage {
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 49% {
        opacity: 1;
    }
    50%, 100% {
        opacity: 0.3;
    }
}

/* Vector graphics aesthetic */
canvas {
    image-rendering: crisp-edges;
    image-rendering: pixelated;
}