.crypto-masters .course-reading-tools {
  position: sticky;
  top: 0;
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 16px;
  height: 40px;
  margin-bottom: 18px;
  padding: 0 2px;
  background: #fff;
  border-bottom: 1px solid #dce1e5;
  font-size: 12px;
}
.crypto-masters .course-reading-tools a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  color: #245777;
  text-decoration: none;
}
.crypto-masters .course-reading-tools a:first-child { flex-shrink: 0; }
.crypto-masters .course-reading-tools svg { width: 14px; height: 14px; flex-shrink: 0; }
.crypto-masters .course-reading-return { margin-left: auto; }
.crypto-masters .course-reading-return span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.crypto-masters .course-reading-tools [hidden] { display: none; }
.crypto-masters .course-reading-tools a:hover { color: #12374e; text-decoration: underline; }
.crypto-masters .course-reading-tools a:focus-visible,
.crypto-masters .course-guide a:focus-visible,
.crypto-masters .course-guide summary:focus-visible { outline: 2px solid #567d97; outline-offset: 3px; }
.crypto-masters .course-guide { padding-bottom: 22px; }
.crypto-masters .course-guide > nav > p { margin-bottom: 10px; }
.crypto-masters .course-guide-foundations,
.crypto-masters .course-guide-links { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.crypto-masters .course-guide-foundations { margin-bottom: 14px; }
.crypto-masters .course-body .course-guide-group { border: 0; border-top: 1px solid #e0e5e8; border-radius: 0; background: transparent; box-shadow: none; padding: 0; margin: 0; }
.crypto-masters .course-body .course-guide-group:last-child { border-bottom: 1px solid #e0e5e8; }
.crypto-masters .course-body .course-guide-group summary { padding: 10px 2px; cursor: pointer; font-size: 13px; font-weight: 600; color: #303d47; margin: 0; }
.crypto-masters .course-guide-group summary span { margin-left: 10px; font-weight: 400; color: #68747d; font-variant-numeric: tabular-nums; }
.crypto-masters .course-body .course-guide-group ul { list-style: none; margin: 0; padding: 0 4px 10px 18px; }
.crypto-masters .course-guide-group li { padding: 9px 0; margin: 0; }
.crypto-masters .course-guide-group li + li { border-top: 1px solid #edf0f2; }
.crypto-masters .course-guide-group li p { margin: 2px 0 4px; }
.crypto-masters .course-guide-links { font-size: 12px; }
.crypto-masters .course-body [id] { scroll-margin-top: 58px; }
.crypto-masters .crypto-preparation { gap: 4px 12px; }
@media (max-width: 560px) {
  .crypto-masters .course-reading-tools { gap: 10px; font-size: 11px; }
  .crypto-masters .course-body .course-guide-group summary { font-size: 12px; }
}
@media print { .crypto-masters .course-reading-tools { display: none; } }