:root {
    color-scheme: light dark;
    --bg: #fff;
    --bg-dark: #222;

    --bg-nav: #eee;
    --bg-nav-dark: #444;

    --bg-nav-active: #cdcdcd;
    --bg-nav-active-dark: #666;

    --text: #000;
    --text-dark: #ddd;
}

html, body {
    width:  100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;

    background: light-dark(var(--bg), var(--bg-dark));
    color: light-dark(var(--text), var(--text-dark));

    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

nav {
    position: fixed;
    display: flex;
    z-index: 100;
    left: 50%;
    transform: translateX(-50%);

    margin-top: 1.3em;
    align-items: center;

    background: light-dark(var(--bg-nav), var(--bg-nav-dark));
    box-shadow: rgba(17, 17, 26, 0.1) 0px 1px 0px, rgba(17, 17, 26, 0.1) 0px 8px 24px, rgba(17, 17, 26, 0.1) 0px 16px 48px;
    border-radius: 15px;
}
nav div {
    padding: 1em;
}
nav svg {
    height: 1.1em;
    padding: 0.4em;
}
nav .active {
    background: light-dark(var(--bg-nav-active), var(--bg-nav-active-dark));
    border-radius: 10px;
}
nav svg:hover {
    transform: scale(1.2);
}

canvas {
    display: block;
}