* { margin: 0; padding: 0; }

html, body {
    width: 100%;
    height: 100%;
    background: #0b0b10;
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

#app, #game-container {
    width: 100%;
    height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#game-container canvas {
    touch-action: none;
}

/* 세로모드 오버레이 */
#rotate {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999;
    background: #0b0b10;
    color: #e6e6f0;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-family: monospace;
    font-size: 20px;
}
#rotate .rotate-icon { font-size: 56px; margin-bottom: 16px; }

@media (orientation: portrait) {
    #rotate { display: flex; }
}