.centered {
    text-align: center;
}

* {
    font-family:
        -apple-system, "Segoe UI", "Roboto", "Ubuntu", "Cantarell", "Noto Sans",
        sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol",
        "Noto Color Emoji";
}

header,
main {
    max-width: 560px;
    margin: auto;
    backdrop-filter: blur(2px);
}

#canvas {
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: -1;
}