/* Kiosk shell: a fixed 1080x1920 stage scaled to fit any screen, with touch lock-down. */
html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #FFFFFF;
  overscroll-behavior: none;
  touch-action: manipulation;
  -webkit-text-size-adjust: 100%;
}
#stage {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1080px;
  height: 1920px;
  transform-origin: 0 0;
  overflow: hidden;
}
#stage * { -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
#stage img, #stage svg { -webkit-user-drag: none; pointer-events: none; }
#stage a, #stage button { -webkit-tap-highlight-color: transparent; touch-action: manipulation; cursor: pointer; }
#stage a *, #stage button * { pointer-events: none; }
#stage a:active, #stage button:active { opacity: 0.7; }