/* Table of contents (TOC) styles */
html { scroll-behavior: smooth; }

#toc nav { background: rgba(255,255,255,0.96); }
.toc-list { list-style: none; padding: 0; margin: 0; max-height: calc(100vh - 220px); overflow: auto; }
.toc-list li { margin: 0; }
.toc-list a { display: block; color: #374151; text-decoration: none; padding: 6px 0; }
.toc-list a:hover { text-decoration: underline; }
.toc-list a.active { font-weight: 700; color: #111; }

@media (max-width: 1024px) {
  #toc { display: none; }
}