html,body{background:#000;width:100%;height:100%;margin:0;padding:0;overflow:hidden}#app{box-sizing:border-box;width:100vw;height:100dvh;padding:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);touch-action:none;overscroll-behavior:none;-webkit-user-select:none;user-select:none;background-color:#000;background-position:50%;background-size:cover;position:fixed;top:0;left:0}#game{width:100%;height:100%;overflow:hidden}canvas{display:block}#orientation-guard{z-index:10000;box-sizing:border-box;color:#fff;text-align:center;touch-action:manipulation;background:#101c24;flex-direction:column;justify-content:center;align-items:center;padding:32px;font-family:Arial,sans-serif;display:none;position:fixed;inset:0}#orientation-guard[hidden]{display:none}#orientation-guard h1{margin:28px 0 8px;font-size:clamp(28px,7vw,40px)}#orientation-guard p{margin:8px 0;font-size:20px;line-height:1.4}#orientation-guard .orientation-hint{color:#bed3dc;max-width:280px;font-size:16px}.orientation-phone{color:#fbbf24;border:5px solid #fbbf24;border-radius:12px;width:105px;height:62px;font-size:56px;line-height:60px}#orientation-fullscreen{color:#14232b;cursor:pointer;background:#fbbf24;border:0;border-radius:10px;margin:24px 0 12px;padding:16px 24px;font:700 20px Arial,sans-serif}@media (orientation:portrait){#app{visibility:hidden;pointer-events:none}#orientation-guard:not([hidden]){display:flex}}