* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
    width: 100%; height: 100%;
    background: #0a0a14;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
#game {
    display: block;
    max-width: 100vw;
    max-height: 100vh;
    margin: 0 auto;
    image-rendering: auto;
    cursor: pointer;
}