body {
    margin: 0;
    overflow: hidden;
    font-family: sans-serif;
}

#container {
    width: 100vw;
    height: 100vh;
}

#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 20px;
    border-radius: 5px;
    pointer-events: none;
}

#instructions {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    padding: 10px;
    border-radius: 5px;
    pointer-events: none;
    font-size: 14px;
    line-height: 1.5;
}