body {
    margin: 0;
    background: #111;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: sans-serif;

    /* 🔑 Disable text selection */
    user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;

    /* 🔑 Disable long-press callouts */
    -webkit-touch-callout: none;

    /* 🔑 Disable gestures like double-tap zoom */
    touch-action: none;
}

canvas {
    border-radius: 12px;
    touch-action: none;
}

html, body {
    overscroll-behavior: none;
}