@charset "UTF-8";
/* ==========================================================================
   content.css — #body content area, paragraphs, spacing, page ToC.
   ========================================================================== */

/* ---- Learn theme base ---- */
#body {
  position: relative;
  margin-left: 300px;
  min-height: 100%; }
  #body img, #body .video-container {
    margin: 3rem auto;
    display: block;
    text-align: center; }
    #body img.border, #body .video-container.border {
      border: 2px solid #e6e6e6 !important;
      padding: 2px; }
    #body img.shadow, #body .video-container.shadow {
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); }
  #body .bordered {
    border: 1px solid #ccc; }
  #body .padding {
    padding: 3rem 6rem; }
    @media only all and (max-width: 59.938em) {
      #body .padding {
        position: static;
        padding: 15px 3rem; } }
    @media only all and (max-width: 47.938em) {
      #body .padding {
        padding: 5px 1rem; } }
  #body h1 + hr {
    margin-top: -1.7rem;
    margin-bottom: 3rem; }
  @media only all and (max-width: 59.938em) {
    #body #navigation {
      position: static;
      margin-right: 0 !important;
      width: 100%;
      display: table; } }
  #body .nav {
    position: fixed;
    top: 0;
    bottom: 0;
    width: 4rem;
    font-size: 50px;
    height: 100%;
    cursor: pointer;
    display: table;
    text-align: center; }
    #body .nav > i {
      display: table-cell;
      vertical-align: middle;
      text-align: center; }
    @media only all and (max-width: 59.938em) {
      #body .nav {
        display: table-cell;
        position: static;
        top: auto;
        width: 50%;
        text-align: center;
        height: 100px;
        line-height: 100px;
        padding-top: 0; }
        #body .nav > i {
          display: inline-block; } }
    #body .nav:hover {
      background: #F6F6F6; }
    #body .nav.nav-pref {
      left: 0; }
    #body .nav.nav-next {
      right: 0; }

#body-inner {
  margin-bottom: 5rem; }

#body a.anchor-link {
  color: #ccc; }
#body a.anchor-link:hover {
  color: #1694CA; }

/*************** SCROLLBAR BASE CSS ***************/
.highlightable {
  padding: 25px 0 15px; }


@media only all and (max-width: 59.938em) {
  #body {
    margin-left: 230px; } }
@media only all and (max-width: 47.938em) {
  #body {
    margin-left: 0;
    width: 100%; } }

/* ---- TTG overrides ---- */
/* --- Paragraphs --- */
#body p {
    margin: 0;
    padding-top: 1rem;
}

#body p:first-child {
    padding-top: 0;
}

/* --- Content body spacing --- */
#body .padding {
    padding: 2rem 3rem;
}

/* ==========================================================================
   Page ToC — "Page Contents" card style
   ========================================================================== */
#page-with-toc {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

#page-content {
    flex: 1;
    min-width: 0;
}

#page-toc {
    position: sticky;
    top: 1.5rem;
    flex: 0 0 220px;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    font-size: 0.8rem;
    line-height: 1.5;
    background: #fafafa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

/* Header bar */
#page-toc .toc-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 0.85rem;
    font-weight: 600;
    font-size: 0.75rem;
    color: #555;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid #e8e8e8;
    background: #f5f5f5;
    border-radius: 8px 8px 0 0;
}

#page-toc .toc-header .mdi {
    font-size: 1rem;
    color: #888;
}

/* List */
#page-toc .toc-list {
    list-style: none;
    margin: 0;
    padding: 0.4rem 0;
}

#page-toc .toc-list li {
    margin: 0;
    padding: 0;
}

#page-toc .toc-list li a {
    display: block;
    padding: 0.25rem 0.85rem;
    color: #555;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}

#page-toc .toc-list li a:hover {
    color: var(--ttg-link);
    background: rgba(21,101,192,0.04);
}

#page-toc .toc-list li.active > a {
    color: var(--ttg-link);
    border-left-color: var(--ttg-link);
    font-weight: 500;
    background: rgba(21,101,192,0.06);
}

#page-toc .toc-list li.toc-child a {
    padding-left: 1.5rem;
    font-size: 0.75rem;
    color: #777;
}

#page-toc .toc-list li.toc-child.active > a {
    color: var(--ttg-link);
}

/* ==========================================================================
   Child-index — auto-generated child page listing
   ========================================================================== */
.child-index {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.child-card {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1rem 1.2rem;
    background: #fafafa;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.child-card:hover {
    border-color: var(--ttg-link);
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

.child-card a {
    text-decoration: none;
}

.child-card p {
    margin: 0;
    padding-top: 0.4rem;
    font-size: 0.85rem;
    color: #666;
    line-height: 1.4;
}

/* Hide ToC on narrow screens */
@media (max-width: 1100px) {
    #page-with-toc { display: block; }
    #page-toc { display: none; }
}


@media (min-width: 48em) {
    #body {
        margin-left: 0;
        flex: 1;
        min-width: 0;
    }
}