html,
body {
    margin: 0;
    width: 100vw;
    height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
    background: #000;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

#page-root {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
    overflow: hidden;
}

#embed-html {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    background: #000;
}

#embed-html.loading-shell {
    background: #fff;
}

canvas {
    display: block;
    outline: none;
    cursor: default;
    max-width: 100%;
    max-height: 100%;
    background: #fff;
}

#rotate-hint {
    display: none;
    position: absolute;
    inset: 0;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #d8e8ff;
    font-size: clamp(16px, 3.2vw, 26px);
    background: rgba(0, 0, 0, 0.7);
    z-index: 50;
    pointer-events: none;
    letter-spacing: 0.02em;
}