/* L8.1e: the tutorial index, Parts as group bands. Step lists and part headers run the full
   content width (site style standards). */
.tutorial-series .tutorial-index { margin: 0; }
.tutorial-series .intro { padding: 0; }
.tutorial-series .part { margin: var(--gap-m) 0 0; }
.tutorial-series h2 + .part { margin-top: 0; }
.tutorial-series .part-head {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  padding: 10px 12px;
  border-top: 2px solid var(--panel);
  border-bottom: 1px solid var(--border);
  background: var(--surface-strong);
}
.tutorial-series .part-num,
.tutorial-series .part-name {
  font-family: var(--font-mono);
  font-size: var(--type-label);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.07em;
  line-height: 1.35;
  text-transform: uppercase;
}
.tutorial-series .part-num { color: var(--link); }
.tutorial-series .part-name { color: var(--text); }
.tutorial-series .part-note { flex-basis: 100%; color: var(--muted); font-size: var(--type-small); }
.tutorial-series .chapters { margin: 0; padding: 0; list-style: none; }
.tutorial-series .chapters li { border-bottom: 1px solid var(--border); }
.tutorial-series .chapters a {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 4px;
  color: inherit;
  text-decoration: none;
}
.tutorial-series .chapters a:hover { background: var(--surface); }
.tutorial-series .chapters a:hover .ch-title,
.tutorial-series .chapters a:focus-visible .ch-title { color: var(--link); text-decoration: underline; }
.tutorial-series .ch-n {
  padding-top: 4px;
  color: var(--link);
  font-family: var(--font-mono);
  font-size: var(--type-label);
  font-weight: var(--weight-semibold);
}
.tutorial-series .ch-title { display: block; margin-bottom: 3px; font-size: var(--type-h3); font-weight: var(--weight-semibold); line-height: 1.35; }
.tutorial-series .ch-blurb { display: block; color: var(--muted); font-size: var(--type-caption); line-height: 1.55; }
.tutorial-series .howto { margin: var(--gap-l) 0 0; padding: 0; }
.tutorial-series .howto h2,
.tutorial-series .section-title {
  margin: 0 0 var(--gap-s);
  padding: 0 0 .65rem;
  border: 0;
  border-bottom: var(--rule);
  font-size: var(--type-h2);
  font-weight: var(--weight-semibold);
  line-height: 1.25;
}
.tutorial-series .colophon {
  margin-top: var(--gap-l);
  padding: 20px 0 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: var(--type-small);
}
@media (max-width: 560px) {
  .tutorial-series .howto h2 { font-size: 21px; }
}
/* Tutorial index merged with its Training module page (Corpus to Dataset, Corpus to Arguments):
   one style for every index section (Overview, Content, What you need, How to read this, Resources),
   a short signal rule beside the heading, no full-height rule or tinted box. */
.tutorial-series .index-section { margin: var(--gap-l) 0 0; padding: 0; }
.tutorial-series .index-section.intro { margin-top: 0; }
.tutorial-series .section-title { font-size: var(--type-h2); font-weight: var(--weight-semibold); line-height: 1.25; }
.tutorial-series .howto h2::after,
.tutorial-series .section-title::after {
  display: block; width: 3rem; height: 3px; margin-top: .65rem; background: var(--signal); content: "";
}
/* Workshops section of every tutorial home: one entry per workshop or class. */
.tutorial-series .workshop-entry { padding: 16px 0 4px; border-top: 2px solid var(--panel); }
.tutorial-series .workshop-entry + .workshop-entry { border-top-width: 1px; border-top-color: var(--border); }
.tutorial-series h3.workshop-entry__title { margin: 0 0 4px; font-size: var(--type-h3); line-height: 1.35; }
.tutorial-series p.workshop-entry__meta { margin: 0 0 8px; color: var(--muted); font-size: var(--type-small); }
.tutorial-series .workshop-entry p { margin-bottom: 12px; }
.tutorial-series .tutorial-index .lede { padding-left: 0; border-left: 0; }
.tutorial-series .intro .record-meta { margin: 0 0 var(--gap-xs); }
.tutorial-series .intro .metadata { margin: 0 0 var(--gap-m); }
.tutorial-series .content-head p { margin: 0; }
.tutorial-series .content-head + .part { margin-top: var(--gap-m); }
.tutorial-series .resource-rows { list-style: none; margin: 0; padding: 0; }
.tutorial-series .resource-rows li { padding: 12px 4px; border-bottom: 1px solid var(--border); }
.tutorial-series .resource-rows li:first-child { border-top: 2px solid var(--panel); }
.tutorial-series .resource-rows p { margin: 2px 0 0; color: var(--muted); font-size: var(--type-small); }