/* Gánh Đêm — màn dọc, một tay, không giật khi vuốt (Argon, review quy trình 01/11) */
html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background: #101a2b;
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    font-family: 'Be Vietnam Pro', 'Noto Sans', system-ui, sans-serif;
}

#app {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    box-sizing: border-box;
}

#game-container {
    width: 100%;
    height: 100%;
}

canvas {
    display: block;
    touch-action: none;
}