/* Topic library */
.learning-current {
  --library-font: "Noto Sans Bengali", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.learning-current .section-heading {
  border-top: 0;
  border-bottom: 0;
  padding: 0 0 24px;
  gap: 16px;
}
.learning-current .section-heading h2 {
  margin: 0;
  font: 500 24px/1.4 var(--library-font);
  letter-spacing: -.04em;
  text-transform: none;
}
.learning-current .section-heading > span {
  color: var(--muted);
  font: 12px/1.5 var(--library-font);
  letter-spacing: 0;
  text-transform: none;
}
.learning-current .topic-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  max-height: min(720px, 75vh);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--muted) transparent;
  scrollbar-gutter: stable;
  scroll-padding-block: 12px;
}
.learning-current .topic-list:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.learning-current .topic-list details {
  background: transparent;
}
.learning-current .topic-list details:last-child { border-bottom: 0; }
.learning-current .topic-list summary,
.learning-current .topic-list details[open] summary,
.learning-current .topic-list summary:hover {
  grid-template-columns: 28px minmax(0, 1fr) auto 24px;
  gap: 16px;
  padding: 22px 26px;
  border-bottom: 0;
}
.learning-current .topic-list summary:hover { background: rgba(0, 0, 0, .025); }
.learning-current .topic-list summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}
.learning-current .topic-list summary strong {
  font: 500 20px/1.4 var(--library-font);
  letter-spacing: -.025em;
}
.learning-current .topic-list .topic-number {
  color: var(--muted);
  font: 11px/1.5 var(--library-font);
}
.learning-current .topic-list .topic-count {
  color: var(--muted);
  font: 11px/1.5 var(--library-font);
  text-transform: none;
  letter-spacing: 0;
}
.learning-current .topic-list summary b {
  text-align: center;
  color: var(--muted);
  font: 400 20px/1 var(--library-font);
}
.learning-current .topic-list details[open] { background: rgba(255, 255, 255, .45); }
.learning-current .topic-list details > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.8fr);
  align-items: start;
  gap: 40px;
  max-width: none;
  padding: 4px 26px 28px 70px;
}
.learning-current .topic-list details > div > p:first-child {
  font: 15px/1.85 var(--library-font);
  color: var(--muted);
  padding-top: 14px;
}
.learning-current .topic-documents {
  list-style: none;
  padding: 0;
  margin: 0;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
  max-height: min(420px, 60vh);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
  scrollbar-gutter: stable;
  scroll-padding-block: 8px;
}
.learning-current .topic-documents:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.learning-current .topic-documents li { border: 0; }
.learning-current .topic-documents li + li { border-top: 1px solid var(--line); }
.learning-current .topic-documents a {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 18px 44px 18px 20px;
}
.learning-current .topic-documents strong {
  font: 500 15px/1.8 var(--library-font);
  letter-spacing: 0;
}
.learning-current .topic-documents a > span {
  font: 12px/1.6 var(--library-font);
  color: var(--muted);
}
.learning-current .topic-documents a > span > span {
  position: absolute;
  right: 18px;
  top: 20px;
  font-size: 17px;
}
.learning-current .topic-documents a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}
@media (max-width: 720px) {
  .learning-current .section-heading { align-items: start; flex-direction: column; gap: 6px; }
  .learning-current .topic-list summary,
  .learning-current .topic-list details[open] summary,
  .learning-current .topic-list summary:hover {
    grid-template-columns: minmax(0, 1fr) auto 18px;
    gap: 10px;
    padding: 20px 16px;
  }
  .learning-current .topic-number { display: none; }
  .learning-current .topic-list summary strong { font-size: 16px; }
  .learning-current .topic-list .topic-count { font-size: 10px; }
  .learning-current .topic-list details > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    padding: 0 16px 22px;
  }
  .learning-current .topic-list details > div > p:first-child { padding-top: 0; }
  .learning-current .topic-documents a { padding-left: 14px; }
}