:root {
    --fontsBase: BlinkMacSystemFont, -apple-system, 'Segoe UI', 'Roboto',
        'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans',
        'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
}

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

html {
    font-size: 62.5%;
    height: 100%;
    width: 100%;
}

body {
    font-family: var(--fontsBase);
    font-size: 1.6em;
    overflow: auto;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: rgb(20, 20, 20);
}

#canvas {
    margin: 0 auto;
    width: 100%;
    height: 100%;
    border: 0px none;
    display: block;
    background-color: rgb(20, 20, 20);
}

#controls {
    position: absolute;
    right: 1rem;
    top: 1rem;
    z-index: 1;
}

#fullscreen-button {
    background: none;
    border-radius: 0.3rem;
    padding: 0.1rem 0.3rem;
    border-color: rgba(46, 63, 92, 0.1);
    color: rgba(46, 63, 92, 0.1);
    border-width: 0.1rem;
    transition-property: color, border-color;
    transition-duration: 0.3s;
    transition-timing-function: ease-in-out;
}

#fullscreen-button:hover {
    border-color: rgba(46, 63, 92, 0.9);
    color: rgba(46, 63, 92, 0.9);
}

#download-progress {
    position: absolute;
    top: calc(50% - 5rem);
    width: 100%;
    height: 10rem;
    background-color: rgb(100, 100, 100);
    display: flex;
    justify-content: center;
    align-items: center;
}
.progress-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.spinner {
    height: 3rem;
    width: 3rem;
    margin: 0;
    display: inline-block;

    -webkit-animation: rotation 0.8s linear infinite;
    -moz-animation: rotation 0.8s linear infinite;
    -o-animation: rotation 0.8s linear infinite;
    animation: rotation 0.8s linear infinite;

    border-left: 5px solid rgb(235, 235, 235);
    border-right: 5px solid rgb(235, 235, 235);
    border-bottom: 5px solid rgb(235, 235, 235);
    border-top: 5px solid rgb(150, 150, 150);

    border-radius: 100%;
    background-color: transparent;
}

#status {
    font-weight: bold;
    color: rgb(250, 250, 250);
}

#progress[value] {
    height: 1rem;
    width: 30rem;
    accent-color: rgb(200, 200, 200);
}

@-webkit-keyframes rotation {
    from {
        -webkit-transform: rotate(0deg);
    }

    to {
        -webkit-transform: rotate(360deg);
    }
}

@-moz-keyframes rotation {
    from {
        -moz-transform: rotate(0deg);
    }

    to {
        -moz-transform: rotate(360deg);
    }
}

@-o-keyframes rotation {
    from {
        -o-transform: rotate(0deg);
    }

    to {
        -o-transform: rotate(360deg);
    }
}

@keyframes rotation {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}