html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #121212;
}

/* Prevent white flash during loading */
#root {
    background-color: #121212;
    width: 100%;
    height: 100%;
}

/* Canvas background to match theme */
canvas {
    background-color: #121212 !important;
}