@media (width<=600px) and (orientation:portrait){canvas,#page-links{touch-action:pan-y pinch-zoom}#page-navigation{bottom:max(16px, env(safe-area-inset-bottom));padding:4px 8px}#page-navigation button{min-height:44px;padding:0 14px;font-size:14px}#page-navigation span{min-width:54px;font-size:13px}body #audio-controls{top:max(14px, env(safe-area-inset-top));right:max(12px, env(safe-area-inset-right))}#audio-controls button{min-height:44px}#opening-prompt{bottom:max(26px, env(safe-area-inset-bottom));min-height:44px}}#audio-controls{z-index:2;position:fixed;top:18px;right:18px}#audio-controls #sound-toggle{position:static}@media (width<=480px){#audio-controls{top:14px;right:10px}}