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

body {
    overflow: hidden;
    background-color: #000;
    font-family: monospace;
    color: #0f0;
    cursor: pointer;
}

canvas {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
}

.overlay {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    border: 1px solid #0f0;
    border-radius: 5px;
    opacity: 0;
    transition: opacity 0.3s;
}

.overlay-container {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 150px;
    height: 100px;
    z-index: 10;
}

.overlay-container:hover .overlay {
    opacity: 0.7;
}

.overlay:hover {
    opacity: 1;
}