/* Learning follows the club's warm stone, burnt-orange and ink system. */
.learning .lesson-illustration { display: block; width: auto; max-width: 100%; max-height: 460px; height: auto; object-fit: contain; }
.learning { --learning-rule: var(--club-line); }
.learning h1, .learning h2, .learning h3 { overflow-wrap: anywhere; }
.learning-intro { border-top: 3px solid var(--club-accent); }
.learning-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; margin: 12px 0 20px; font-size: 12px; color: var(--club-muted); }
.learning-description { white-space: pre-wrap; overflow-wrap: anywhere; }
.learning-filters { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto; align-items: end; gap: 16px; }
.learning-catalog { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; }
.learning-catalog .panel { margin: 0; }
.learning-course-header { display: flex; justify-content: space-between; align-items: start; gap: 20px; }
.learning-course-header h2 { margin-bottom: 8px; }
.learning-list { list-style: none; padding: 0; margin: 20px 0 0; counter-reset: lesson; }
.learning-list li { counter-increment: lesson; border-top: 1px solid var(--learning-rule); }
.learning-list a { display: flex; gap: 16px; align-items: center; padding: 18px 0; color: var(--club-ink); text-decoration: none; }
.learning-list a::before { content: counter(lesson, decimal-leading-zero); color: var(--club-accent); font: 14px Consolas, monospace; flex: 0 0 26px; }
.learning-list a:hover strong { text-decoration: underline; text-underline-offset: 4px; }
.learning-list a > span:first-of-type { flex: 1; min-width: 0; }
.learning-list strong, .learning-list small { display: block; overflow-wrap: anywhere; }
.learning-list small { color: var(--club-muted); font-size: 12px; margin-top: 4px; }
.learning-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 24px; align-items: start; }
.learning-layout > * { min-width: 0; }
.learning-body { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 16px; line-height: 1.85; max-width: 72ch; }
.learning-aside { border-top: 3px solid var(--club-accent); }
.learning-aside p { font-size: 13px; }
.learning-question { min-width: 0; padding: 22px 0; margin: 0; border: 0; border-top: 1px solid var(--club-line); }
.learning-question legend { padding: 0 0 12px; font-weight: 650; overflow-wrap: anywhere; }
.learning-option { display: flex; align-items: start; gap: 12px; padding: 12px 14px; border: 1px solid var(--club-line); border-radius: 5px; margin-bottom: 8px; min-height: 48px; font-weight: 400; cursor: pointer; background: var(--club-bg); }
.learning-option:has(input:checked) { border-color: var(--club-accent); background: var(--club-soft); }
.learning .learning-option input[type="radio"] { flex: 0 0 18px; width: 18px; height: 18px; min-height: 18px; padding: 0; margin: 3px 0 0; accent-color: var(--club-accent); }
.learning-result { border-left: 4px solid var(--club-good); }
.learning-result.is-incomplete { border-left-color: var(--club-accent); }
.learning-feedback { padding: 14px 0; border-top: 1px solid var(--club-line); }
.learning-feedback p { margin: 8px 0 0; overflow-wrap: anywhere; }
.learning-progress { display: flex; flex-direction: column; gap: 6px; min-width: 130px; }
.learning progress { width: 100%; height: 9px; accent-color: var(--club-good); border: 0; border-radius: 9px; overflow: hidden; }
.learning progress::-webkit-progress-bar { background: var(--club-line); }
.learning progress::-webkit-progress-value { background: var(--club-good); }
.learning progress::-moz-progress-bar { background: var(--club-good); }
.learning-table-wrap { overflow-x: auto; }
.learning-table { width: 100%; border-collapse: collapse; text-align: left; }
.learning-table th { font-size: 11px; color: var(--club-muted); font-weight: 650; }
.learning-table th, .learning-table td { padding: 16px 12px; border-bottom: 1px solid var(--club-line); vertical-align: middle; }
.learning-table th:first-child, .learning-table td:first-child { padding-left: 0; }
.learning-table td { font-size: 13px; }
.learning-table td small { display: block; color: var(--club-muted); margin-top: 4px; }
.learning-editor { border: 0; padding: 0; margin: 28px 0 0; min-width: 0; }
.learning-editor legend { font-size: 18px; font-weight: 650; padding-bottom: 16px; }
.learning-editor textarea { resize: vertical; }
.learning-image-picker { min-width: 0; }
.learning-image-picker [hidden] { display: none !important; }
[data-image-search-scope] [hidden] { display: none !important; }
.learning-image-preview { margin: 16px 0; padding: 16px; border: 1px solid var(--club-line); border-radius: 5px; background: var(--club-bg); }
.learning-image-preview img { display: block; max-width: 100%; max-height: 300px; width: auto; height: auto; margin: 0 auto; object-fit: contain; }
.learning-image-preview figcaption { margin-top: 12px; overflow-wrap: anywhere; font-size: 13px; }
.learning-image-preview figcaption span { display: block; color: var(--club-muted); margin-top: 4px; }
.learning-image-gallery { margin-top: 12px; border-top: 1px solid var(--club-line); }
.learning-image-gallery summary { cursor: pointer; padding: 16px 0; font-weight: 650; color: var(--club-accent); }
.learning-image-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; padding-bottom: 16px; }
.learning-image-choice { display: flex; flex-direction: column; gap: 10px; text-align: left; padding: 12px; min-width: 0; border: 1px solid var(--club-line); border-radius: 5px; background: var(--club-bg); color: var(--club-ink); font: inherit; cursor: pointer; overflow-wrap: anywhere; }
.learning-image-choice img { width: 100%; height: 130px; object-fit: contain; }
.learning-image-choice small { color: var(--club-muted); }
.learning-image-choice:hover, .learning-image-choice[aria-pressed="true"] { border-color: var(--club-accent); background: var(--club-soft); }
.learning-image-choice[aria-pressed="true"] { box-shadow: inset 0 0 0 1px var(--club-accent); }
.learning-image-picker :is(button, summary, select):focus-visible { outline: 2px solid var(--club-accent); outline-offset: 3px; }
.learning-image-clear { margin-top: 12px; }
@media (max-width: 767px) {
  .learning-image-grid { grid-template-columns: minmax(0, 1fr); }
}
.learning-settings summary { cursor: pointer; padding: 14px 0; font-weight: 650; color: var(--club-accent); }
.learning-pagination { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 24px 0; }
.learning-public-nav { margin-bottom: 28px; }
.learning-path { margin: 0 0 24px; }
.learning-path img { display: block; width: 100%; height: auto; }
.learning-path figcaption { font-size: 12px; color: var(--club-muted); margin-top: 8px; }
.learning-slide h2 { font-size: clamp(24px, 3vw, 36px); }
.learning-slide-controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 24px 0 12px; }
.learning-slide-controls[hidden], .learning-slide[hidden], .learning-slide-help[hidden] { display: none; }
.learning-slide-count { font-size: 13px; color: var(--club-muted); min-width: 110px; text-align: center; }
.auth-shell:has(.learning-public) { grid-template-columns: minmax(240px, .65fr) minmax(0, 2fr); }
.auth-shell:has(.learning-public) .auth-main { justify-content: start; padding: 40px clamp(24px, 4vw, 64px); }
.auth-shell:has(.learning-public) .auth-content { max-width: 1040px; }
@media (max-width: 1000px) {
  .learning-layout { grid-template-columns: 1fr; }
  .auth-shell:has(.learning-public) { grid-template-columns: 1fr; }
  .auth-shell:has(.learning-public) .auth-story-copy { display: none; }
  .auth-shell:has(.learning-public) .auth-story { padding: 24px; }
  .auth-shell:has(.learning-public) .auth-story .brand { margin-bottom: 0; }
  .auth-shell:has(.learning-public) .auth-story > a:last-child { margin-top: 16px; }
}
@media (max-width: 767px) {
  .learning-filters { grid-template-columns: 1fr; }
  .learning-course-header { flex-direction: column; gap: 12px; }
  .learning-list a { flex-wrap: wrap; gap: 12px; }
  .learning-table, .learning-table tbody, .learning-table tr, .learning-table td { display: block; }
  .learning-table thead { display: none; }
  .learning-table tr { padding: 16px 0; border-bottom: 1px solid var(--club-line); }
  .learning-table td { border: 0; padding: 6px 0; }
  .learning-table td::before { content: attr(data-label); display: block; font-size: 11px; color: var(--club-muted); margin-bottom: 4px; }
  .learning-pagination .button { flex: 1 1 auto; }
}
/* All study text shares the same readable red, regardless of provenance. */
.learning-body,
.learning-pdf-explanation,
.reference-content,
.topics-hero .lead,
.topics-text,
.topics .topics-book-text,
.helper-source blockquote,
.pattern-theory p,
.pattern-theory li {
  color: #a12626;
}
.motion-diagram { margin: 1rem 0 1.5rem; }
.motion-diagram img { display: block; max-width: 100%; width: auto; height: auto; background: white; }
.motion-diagram figcaption { margin-top: .5rem; font-size: .875rem; }
@media print {
  .learning-pdf-explanation { color: #a12626; }
  .learning-slide-controls, .learning-slide-help { display: none !important; }
  .learning-slide[hidden] { display: block !important; }
  .learning-slide { break-before: page; }
  .learning-slide:first-of-type { break-before: auto; }
  .sidebar, .topbar, .auth-story, .drawer-backdrop, .footer-note, .learning-public-nav, .learning-pagination, .learning-quiz, .learning-aside, .skip-link { display: none !important; }
  .workspace { margin: 0 !important; }
  .auth-shell:has(.learning-public), .learning-layout { display: block; }
  .main, .auth-main, .auth-shell:has(.learning-public) .auth-main { padding: 0; }
  .panel { border: 0; padding: 0; box-shadow: none; }
  .learning-body { max-width: none; font-size: 12pt; }
  .learning h1 { font-size: 24pt; }
  .learning a { color: inherit; }
}