/* Hide mdBook's auto-generated chapter numbers in the sidebar
   (the bold "1." etc.), so only the manual "module.topic" numbering
   written into SUMMARY.md is shown. */
.chapter-item strong[aria-hidden="true"] {
  display: none !important;
}

/* Roadmap (Mermaid) diagram: fill the content width without overflowing. */
.mermaid {
  text-align: center;
}
.mermaid svg {
  max-width: 100% !important;
  width: 100%;
  height: auto;
}