/* Fit all five examples to the chapter's available width, including beside the sidebar. */
.mini-chart .level { min-width: 0; overflow-wrap: anywhere; }

/* journey.css keeps the existing single-column layout at 620px and below. */
@media (min-width: 621px) {
  .mini-chart { grid-template-columns: repeat(auto-fit, minmax(min(100%, 130px), 1fr)); }
}