.content-with-rail {
    display: flex;
    gap: 2rem;
  }
  .content-with-rail .content {
    flex: 1 1 auto;
    min-width: 0;
  }

  @media (max-width: 1100px) {
    .right-sidebar { display: none; }
  }

/* --- prune the global toctree for the right rail --- */

/* hide whole non-current top branches to avoid clutter */
.right-sidebar .right-toc .toctree-l1:not(.current) {
  display: none;
}

/* within the current branch, hide the L1/L2 labels but keep their children */
.right-sidebar .right-toc .toctree-l1 > a { display: none; }
.right-sidebar .right-toc .toctree-l2 > a { display:none; }

/* turn off bullets/extra indent noise */
.right-sidebar .right-toc ul { list-style: none; padding-left: 0; margin: 0; }
.right-sidebar .right-toc li { margin: 0; }

/* style L3/L4 */
.right-sidebar .right-toc .toctree-l3 > a {
  display: block;
  padding-left: .75rem;
  font-weight: 500;
}
.right-sidebar .right-toc .toctree-l4 > a {
  display: block;
  padding-left: 1.5rem;
  font-weight: 400;
  opacity: .9;
}

/* separators/spacing */
.right-sidebar .right-toc .toctree-l3 { margin-top: .35rem; }