:root {
    --bg: #999999;
    --fg: #000000;
    --transition: 0.2s ease;
}

@font-face {
    font-family: 'Supply';
    src: url('fonts/PPSupplyMono-Regular-subset.woff2?v=7451a533') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

*, *::before, *::after {
    box-sizing: border-box;
}

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

html {
    background-color: var(--bg);
    transition: background-color var(--transition);
}

html.inverted {
    --bg: blue;
    --fg: #ffffff;
}

body {
    background-color: transparent;
    font-family: 'Supply', Helvetica, sans-serif;
    color: var(--fg);
    transition: color var(--transition);
}

/* iOS background fix */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-color: var(--bg);
    transition: background-color var(--transition);
    z-index: -1;
}

#glcanvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    touch-action: none;
}



#page-title {
    position: fixed;
    bottom: 1.2rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Supply', Helvetica, sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--fg);
    opacity: 0.5;
    z-index: 10;
    transition: color var(--transition);
    pointer-events: none;
    white-space: nowrap;
}

#blackButton {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    width: 1.2rem;
    height: 1.2rem;
    background: var(--fg);
    border: none;
    cursor: pointer;
    z-index: 10;
    padding: 0;
    transition: background-color var(--transition), transform 0.3s ease;
}

html.inverted #blackButton {
    background: #ffffff;
}

#mouse-coords {
    display: none;
    position: fixed;
    font-family: 'Supply', Helvetica, sans-serif;
    font-size: 0.75rem;
    color: #ffffff;
    pointer-events: none;
    white-space: nowrap;
    transform: translateX(calc(-100% - 10px)) translateY(-50%);
    z-index: 20;
}

html.inverted #mouse-coords {
    display: block;
}