/* Share the book shelf/editorial primitives without restyling the rest of the site. */
@media screen {
  .course-cover-art { display: grid; place-items: center; flex: 1; width: 100%; min-width: 0; }
  .course-cover-poster { display: block; width: 100%; max-width: 185px; overflow: hidden; border: 1px solid var(--s-line); border-radius: 8px; background: var(--s-paper); box-shadow: 0 8px 18px #0000000d; }
  .course-cover-poster > img { display: block; width: 100%; height: 170px; object-fit: contain; background: var(--t-soft); }
  .course-cover-copy { display: grid; gap: 7px; padding: 14px; text-align: left; }
  .course-cover-copy small { color: var(--s-green-dark); font-size: 9px; letter-spacing: .12em; }
  .course-cover-copy strong { color: var(--s-ink); font: 600 23px/1.3 var(--s-serif); }
  .course-cover-copy > span { color: var(--s-muted); font-size: 10px; line-height: 1.6; }
  .annual-course.is-expanded .course-cover-art { place-items: end start; }
  .annual-course.is-expanded .course-cover-poster { max-width: 285px; }
  .annual-course.is-expanded .course-cover-poster > img { height: 285px; }
  .annual-course.is-expanded .course-cover-copy { padding: 18px 20px; }
  .annual-course.is-expanded .course-cover-copy strong { font-size: 30px; }
  .course-hero-copy .course-teacher { color: var(--s-green-dark); font-size: 12px; }
  .course-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 5px; }
  .course-action { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 9px 14px; border: 1px solid var(--s-green); border-radius: 12px; background: var(--s-paper); color: var(--s-green-dark); font: 600 12px/1.5 var(--s-sans); text-decoration: none; cursor: pointer; }
  .course-action.is-primary { background: var(--s-green-dark); color: var(--s-paper); }
  .course-action:hover { box-shadow: 0 4px 12px #00000012; }
  .course-action:focus-visible { outline: 2px solid var(--s-green); outline-offset: 3px; }
  .course-hero-copy .course-action-note { color: var(--s-muted); font-size: 10px; }
  .course-route > h3 { margin-bottom: 16px; }
  .course-route ol { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .course-route-two ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .course-route li { min-width: 0; padding: 15px; border: 1px solid var(--s-line); border-radius: 10px; background: var(--t-soft); }
  .course-stage-number { flex: none; display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--s-line); border-radius: 50%; background: var(--s-paper); color: var(--s-green-dark); font: 600 12px/1 var(--s-sans); }
  .course-stage-number + div { margin-top: 12px; }
  .course-stage-tag { color: var(--s-green); font-size: 10px; letter-spacing: .08em; }
  .course-route h4 { margin: 4px 0 7px; color: var(--s-ink); font: 600 17px/1.5 var(--s-serif); }
  .course-detail .course-route p { font-size: 12px; }
  .course-route small { display: block; margin-top: 8px; color: var(--s-green-dark); font-size: 10px; line-height: 1.7; }
  .course-support { align-self: start; padding: 17px; border: 1px solid var(--s-line); border-radius: 10px; background: var(--t-soft); }
  .course-support dl { display: grid; gap: 13px; margin: 14px 0; }
  .course-support dt { color: var(--s-green-dark); font-size: 12px; font-weight: 600; }
  .course-support dd { margin: 4px 0 0; color: var(--s-muted); font-size: 12px; line-height: 1.7; }
  .course-support > p { padding-top: 10px; border-top: 1px solid var(--s-line); font-size: 10px; }
  .course-outlines { scroll-margin-top: 24px; }
  .course-outlines .notes-outline + .notes-outline { border-top: 0; }
  .course-later-outline li { display: block; }
  .course-later-outline strong { color: var(--s-green-dark); font-size: 12px; }
  .course-later-outline li p { margin: 3px 0 0; font-size: 11px; }
  .course-source-note { display: grid; gap: 8px; }
  .course-source-note p { font-size: 10px; }
  .course-source-note a { justify-self: start; color: var(--s-green-dark); font-size: 11px; text-underline-offset: 3px; }
  .topic-cover-art { flex: 1; display: grid; place-items: center; width: 100%; min-height: 170px; }
  .topic-cover-art img { display: block; width: 100%; max-width: 185px; aspect-ratio: 3 / 2; height: auto; border: 1px solid var(--s-line); border-radius: 8px; object-fit: cover; }
  .topic-collection.is-expanded .notes-cover-toggle { height: 62px; min-height: 0; border-bottom: 1px solid var(--s-line); background: var(--t-soft); }
  .topic-collection.is-expanded .topic-cover-art { display: none; }
  .topic-detail > h2 { margin: 0; color: var(--s-ink); font: 600 27px/1.4 var(--s-serif); }
  .topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; align-items: stretch; }
  .topic-card { min-width: 0; overflow: hidden; border: 1px solid var(--s-line); border-radius: 12px; background: var(--t-soft); }
  .topic-card > img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: contain; }
  .topic-card > div { padding: 18px 15px 20px; }
  .topic-card h3 { margin: 0 0 9px; font: 600 18px/1.5 var(--s-serif); }
  .topic-card p { margin: 0; color: var(--s-muted); font-size: 12px; line-height: 1.8; }
  @media (min-width: 821px) {
    .course-shelf:has(.is-expanded) .topic-collection:not(.is-expanded) .topic-cover-art { flex: none; min-height: 88px; height: 88px; }
    .course-shelf:has(.is-expanded) .topic-collection:not(.is-expanded) .topic-cover-art img { max-width: 110px; }
    .course-shelf:has(.is-expanded) .annual-course:not(.is-expanded) .course-cover-art { flex: none; }
    .course-shelf:has(.is-expanded) .annual-course:not(.is-expanded) .course-cover-poster { max-width: 90px; }
    .course-shelf:has(.is-expanded) .annual-course:not(.is-expanded) .course-cover-poster > img { height: 88px; }
    .course-shelf:has(.is-expanded) .annual-course:not(.is-expanded) .course-cover-copy { display: none; }
  }
  @media (max-width: 820px) {
    .shelf-course:not(.is-expanded) .notes-cover-toggle { min-height: 195px; padding: 14px 12px; gap: 8px; }
    .annual-course:not(.is-expanded) .course-cover-art, .topic-collection:not(.is-expanded) .topic-cover-art { flex: none; min-height: 65px; }
    .annual-course:not(.is-expanded) .course-cover-poster { max-width: 82px; }
    .annual-course:not(.is-expanded) .course-cover-poster > img { height: 65px; }
    .annual-course:not(.is-expanded) .course-cover-copy { display: none; }
    .topic-collection:not(.is-expanded) .topic-cover-art img { max-width: 98px; }
    .shelf-course:not(.is-expanded) .notes-cover-caption { margin-block: auto; }
    .shelf-course:not(.is-expanded) .notes-cover-caption strong { font-size: 18px; }
    .shelf-course:not(.is-expanded) .notes-cover-caption > span { display: none; }
    .course-cover-poster > img { height: 135px; }
    .course-cover-copy { padding: 12px; }
    .course-cover-copy strong { font-size: 21px; }
  }
  @container studio-book (max-width: 500px) {
    .annual-course.is-expanded .course-cover-poster { max-width: 255px; }
    .annual-course.is-expanded .course-cover-poster > img { height: 255px; }
    .course-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
    .course-action { padding: 9px 6px; font-size: 11px; }
    .course-route li { padding: 14px 12px; }
    .course-stage-number { width: 26px; height: 26px; font-size: 10px; }
    .course-route h4 { font-size: 16px; }
  }
  @container studio-book (max-width: 620px) {
    .course-route ol { grid-template-columns: minmax(0, 1fr); }
    .course-route li { display: flex; align-items: flex-start; gap: 12px; }
    .course-stage-number + div { min-width: 0; margin-top: 0; }
    .topic-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
    .topic-card > div { padding: 17px; }
    .topic-card h3 { font-size: 20px; }
    .topic-card p { font-size: 13px; }
  }
}