/* Table of Contents Sidebar */

.post-wrapper {
  position: relative;
}

.toc-sidebar {
  display: none;
}

/* Show TOC on wide screens */
@media (min-width: 64em) {
  .post-wrapper {
    position: relative;
    max-width: 50rem;
    margin: 0 auto;
  }

  .post {
    /* Keep the post at its normal width */
    max-width: 38rem;
  }

  .toc-sidebar {
    display: block;
    position: absolute;
    left: calc(100% + 2rem);
    top: 0;
    width: 240px;
  }

  .toc {
    position: sticky;
    top: 1rem;
    padding: 1rem;
    background-color: #f9f9f9;
    border-radius: 4px;
    font-size: 0.75rem;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
  }

  .toc h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: #313131;
  }

  .toc ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
  }

  .toc li {
    margin-bottom: 0.25rem;
  }

  .toc li.toc-h1 {
    font-weight: 600;
  }

  .toc li.toc-h2 {
    padding-left: 0.5rem;
  }

  .toc li.toc-h3 {
    padding-left: 1rem;
  }

  .toc li.toc-h4 {
    padding-left: 1.5rem;
    font-size: 0.9em;
  }

  .toc a {
    color: #515151;
    display: block;
    padding: 0.25rem 0;
  }

  .toc a:hover {
    color: #268bd2;
    text-decoration: none;
  }
}