#appRoot {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

html {
  min-height: 100%;
  background: var(--scene-bg);
}

body {
  font-family: "Segoe UI", Arial, system-ui, sans-serif;
  background: transparent;
  /* IMPORTANT */
  color: var(--text-primary);
  margin: 0;
  min-height: 100vh;
}

/* MathJax inline alignment tweaks */
mjx-container[jax="CHTML"] {
  display: inline-block;
  vertical-align: -0.2em;
  margin: 0 0.05em;
}