:root {
    --stage-gray-light: #eef2f4;
    --stage-gray-mid: #c6ced4;
    --stage-gray-dark: #a8b3bb;
}

html,
body {
    width: 100%;
    height: 100%;
    background: #cfd5da;
}

#v3d-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
    isolation: isolate;
    background:
        radial-gradient(circle at 50% 46%, rgba(255, 255, 255, 0.96) 0%, rgba(235, 239, 242, 0.9) 31%, rgba(196, 204, 211, 0.92) 72%, rgba(166, 177, 185, 0.96) 100%),
        linear-gradient(135deg, #e8ecef 0%, #b8c1c8 100%);
}

#v3d-container::before,
#v3d-container::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

#v3d-container::before {
    opacity: 0.25;
    background-image:
        linear-gradient(rgba(72, 87, 98, 0.11) 1px, transparent 1px),
        linear-gradient(90deg, rgba(72, 87, 98, 0.11) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: radial-gradient(circle at center, #000 0%, transparent 74%);
    -webkit-mask-image: radial-gradient(circle at center, #000 0%, transparent 74%);
}

#v3d-container::after {
    background:
        linear-gradient(118deg, transparent 0 63%, rgba(255, 255, 255, 0.17) 63.2% 63.6%, transparent 63.8%),
        radial-gradient(circle at 14% 18%, rgba(255, 255, 255, 0.72), transparent 21%);
}

#v3d-container canvas {
    position: relative;
    z-index: 1;
}

#fullscreen-button {
    z-index: 4;
}