/* ── HOUDINI RESOURCES EXTRAS ── */
    /*.sidebar-indent { padding-left: 1.5rem !important; font-size: .78rem !important; }*/

    /* Icon nav grid */
    .icon-nav {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin: 1.5rem 0;
    }
    .icon-nav-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: .5rem;
      text-decoration: none !important;
      color: var(--text);
      transition: color .12s;
    }
    .icon-nav-item:hover { color: var(--accent); }
    .icon-nav-item img {
      width: 140px; height: 140px;
      object-fit: cover;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      transition: border-color .12s;
    }
    .icon-nav-item:hover img { border-color: var(--accent); }
    .icon-nav-item span {
      font-size: .78rem; font-weight: 600;
      text-align: center; max-width: 140px;
    }

    /* Three column links layout */
    .links-grid {
      display: grid;
      grid-template-columns: 1fr 2fr 1fr;
      gap: 1px;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      margin: 1.5rem 0;
    }
    .links-col {
      background: var(--bg-card);
      padding: 1rem 1.2rem;
    }
    .links-col-title {
      font-size: .72rem; font-weight: 400;
      font-family: var(--mono); text-transform: uppercase;
      letter-spacing: .08em; color: var(--text-dim);
      margin-bottom: .75rem;
    }
    .links-col ul {
      list-style: disc;
      padding-left: 1.2rem;
      margin: 0;
    }
    .links-col li {
      font-size: .82rem;
      line-height: 1.5;
      margin-bottom: .35rem;
    }
    .links-col a { color: var(--accent); }
    .links-col .note {
      font-size: .75rem; color: var(--text-dim);
      font-style: italic; margin-top: .5rem;
    }

    @media (max-width: 680px) {
      .links-grid { grid-template-columns: 1fr; }
    }

    /* Version history accordion */
    .version-history { margin: 1.5rem 0; }
    .version-summary {
      display: flex;
      align-items: center;
      gap: .5rem;
      cursor: pointer;
      padding: .6rem .8rem;
      background: var(--bg-sub);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font-size: .85rem; font-weight: 600;
      user-select: none;
      list-style: none;
    }
    .version-summary::-webkit-details-marker { display: none; }
    .version-summary::before {
      content: '▶';
      font-size: .6rem;
      transition: transform .15s;
      color: var(--text-dim);
    }
    details[open] .version-summary::before { transform: rotate(90deg); }
    .version-content {
      padding: 1rem 1.2rem;
      border: 1px solid var(--border);
      border-top: none;
      border-radius: 0 0 var(--radius) var(--radius);
      background: var(--bg-card);
    }
    .version-content ul {
      list-style: disc;
      padding-left: 1.2rem;
      margin: .5rem 0;
    }
    .version-content li { font-size: .82rem; line-height: 1.6; margin-bottom: .2rem; }
    .version-content a { color: var(--accent); }
    .version-content .version-note {
      font-size: .78rem; color: var(--text-dim);
      border-left: 2px solid var(--border-mid);
      padding-left: .75rem; margin: .75rem 0;
    }
    .version-tag {
      display: inline-block;
      font-family: var(--mono); font-size: .65rem;
      font-weight: 600; letter-spacing: .04em;
      background: var(--bg-sub); border: 1px solid var(--border);
      border-radius: 3px; padding: .1rem .4rem;
      color: var(--text-mid); margin-right: .3rem;
    }

    /* ── SIDEBAR NAV ── */
    .sidebar-menu {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    /* Top-level plain list items (e.g. Overview) */
    .sidebar-menu > li {
      margin: 0;
    }
    .sidebar-menu > li > a {
      display: block;
      font-family: var(--sans);
      font-size: .78rem;
      font-weight: 400;
      padding: .32rem 1.25rem;
      color: var(--text-mid);
      text-decoration: none;
      border-left: 2px solid transparent;
      transition: background .12s, color .12s, border-color .12s;
    }
    .sidebar-menu > li > a:hover {
      background: var(--bg-sub);
      color: var(--text);
      border-left-color: var(--border-mid);
    }
    /* details/summary sections */
    .sidebar-menu details {
      margin: 1px 0;
    }
    .sidebar-menu details > summary {
      list-style: none;
      cursor: pointer;
      padding: .35rem 1.25rem;
      font-size: .58rem;
      font-weight: 400;
      font-family: var(--mono);
      text-transform: uppercase;
      letter-spacing: .08em;
      color: var(--text-dim);
      border-radius: var(--radius);
      user-select: none;
      display: flex;
      align-items: center;
      gap: .4rem;
      transition: background .1s, color .1s;
    }
    .sidebar-menu details > summary b { font-weight: 400; }
    .sidebar-menu details > summary::-webkit-details-marker { display: none; }
    .sidebar-menu details > summary::before {
      content: '▶';
      font-size: .55rem;
      color: var(--text-dim);
      transition: transform .15s;
      flex-shrink: 0;
    }
    .sidebar-menu details[open] > summary::before {
      transform: rotate(90deg);
    }
    .sidebar-menu details > summary:hover {
      background: var(--bg-sub);
      color: var(--accent);
    }
    /* Sub-nav lists inside details */
    .sub-nav {
      list-style: none;
      padding: .2rem 0 .4rem 0;
      margin: 0;
    }
    .sub-nav li a {
      display: block;
      font-family: var(--sans);
      font-size: .78rem;
      padding: .28rem 1.25rem .28rem 2.25rem;
      color: var(--text-mid);
      text-decoration: none;
      border-left: 2px solid transparent;
      transition: background .12s, color .12s;
    }
    .sub-nav li a:hover {
      background: var(--bg-sub);
      color: var(--text);
      border-left-color: var(--border-mid);
    }
	
[data-theme="dark"] .sidebar-menu details > summary::before {
    color: var(--text-dim); /* Softens the arrow so it doesn't distract from the text */
    opacity: 0.7;
}