body {
  margin: 0;
  padding: 0;
  color: #202124;
  background-color: #ffffff;
  font-family:
    "Google Sans",
    "Roboto",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* React-driven DOM UI overlay. Absolute over the canvas. By default the
 * container does not swallow clicks — individual modals/buttons opt in
 * via pointer-events: auto. */
#react-root {
  position: absolute;
  inset: 0;
  pointer-events: none;
}