* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #1a1a2e;
    /* Prevent mobile browser issues */
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    /* Prevent pull-to-refresh */
    overscroll-behavior: none;
}

#game-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Prevent text selection */
    -webkit-tap-highlight-color: transparent;
}

#game-canvas {
    background-color: #16213e;
    max-width: 100%;
    max-height: 100%;
    /* Prevent canvas from being dragged */
    -webkit-touch-callout: none;
    touch-action: none;
}