.ld-learning { padding-block: clamp(2rem, 5vw, 5rem); max-width: 1200px; }
.ld-page-heading { margin-bottom: 2rem; }
.ld-page-heading h1, .ld-lesson-intro h1 { font-size: var(--ld-h1); line-height: 1.2; letter-spacing: -.025em; }
.ld-learning a { color: var(--ld-blue); }
.ld-learning .btn-primary { background: var(--ld-blue); border-color: var(--ld-blue); color: #fff; }
.ld-learning .btn-outline-primary { color: var(--ld-blue); border-color: var(--ld-blue); }
.ld-learning .btn-outline-primary:hover { background: var(--ld-blue); color: #fff; }
.ld-learning .btn { white-space: normal; padding: .8rem 1.25rem; border-radius: .4rem; }
.ld-learning img { max-width: 100%; height: auto; }
.ld-richtext { line-height: 1.75; overflow-wrap: anywhere; }
.ld-richtext h2, .ld-richtext h3 { margin-top: 1.5rem; }
.single-ld_lesson #main.site-main { padding-top: 0; }
.ld-breadcrumbs { width: 100%; padding: 18px var(--ld-header-gutter, 40px); margin: 0; border-bottom: 1px solid var(--ld-line); background: #fff; font-size: 12px; line-height: 1.6; color: #52616a; }
.ld-breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin: 0; padding: 0; list-style: none; }
.ld-breadcrumbs li { display: inline-flex; align-items: baseline; gap: 12px; min-width: 0; max-width: 100%; }
.ld-breadcrumbs a, .ld-breadcrumbs li > span { min-width: 0; overflow-wrap: anywhere; }
.ld-breadcrumbs a { color: #526b78; text-decoration: none; text-underline-offset: 3px; transition: color .15s ease; }
.ld-breadcrumbs a:hover { color: var(--ld-blue); text-decoration: underline; }
.ld-breadcrumbs a:focus-visible { outline: 2px solid var(--ld-blue); outline-offset: 4px; border-radius: 2px; }
.ld-breadcrumbs [aria-current="page"] { color: var(--ld-ink); font-weight: 500; }
.ld-breadcrumb-arrow { flex: 0 0 12px; align-self: center; color: #8a9ba3; }
.ld-breadcrumbs + .ld-learning { padding-top: clamp(1.5rem, 3vw, 3rem); }
.ld-eyebrow { color: var(--ld-blue); font-weight: 650; }
.ld-lesson-intro { max-width: 850px; margin-inline: auto; text-align: center; }
.ld-intro-image { display: block; max-height: 440px; width: auto; object-fit: contain; margin: 2rem auto; border-radius: .6rem; }
.ld-lesson-body--gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.ld-lesson-collection { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); list-style: none; gap: 1.5rem; padding: 0; margin-block: 2rem; }
.ld-lesson-card { border: 1px solid var(--ld-line); border-radius: .75rem; padding: 1.5rem; overflow: hidden; }
.ld-card-main { display: block; text-decoration: none; }
.ld-card-main h2 { font-size: 1.35rem; line-height: 1.3; margin: 1rem 0 .75rem; }
.ld-card-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: .4rem; }
.ld-card-excerpt { font-size: .95rem; }
.ld-card-children { padding-left: 1.2rem; line-height: 1.8; }
.ld-card-sponsor { display: block; margin-top: 1rem; }
.ld-card-sponsor img { max-width: 160px; max-height: 60px; object-fit: contain; }
.ld-grid-simple { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.ld-skin-toggle { display: flex; gap: .5rem; }
.ld-skin-toggle button { border: 1px solid var(--ld-line); border-radius: .4rem; background: #fff; color: var(--ld-ink); padding: .6rem 1rem; }
.ld-skin-toggle button[aria-pressed=true] { background: var(--ld-blue); color: #fff; border-color: var(--ld-blue); }
.ld-image-dark, .ld-skin-dark .ld-image-light.ld-has-dark { display: none; }
.ld-skin-dark .ld-image-dark { display: block; }
.ld-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 1rem; }
.ld-gallery figure { margin: 0; }
.ld-gallery figcaption { font-size: .85rem; margin-top: .5rem; line-height: 1.5; }
.ld-image-open { display: block; width: 100%; border: 0; padding: 0; background: transparent; cursor: zoom-in; }
.ld-image-open img { width: 100%; border-radius: .4rem; }
.ld-sensitive summary { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 220px; border: 1px solid var(--ld-line); border-radius: .4rem; background: var(--ld-surface); cursor: pointer; }
.ld-sensitive[open] summary { min-height: 0; padding: .5rem; font-size: .85rem; }
.ld-lesson-navigation, .ld-quiz-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--ld-line); }
.ld-sponsorship { margin-top: 3rem; font-size: .8rem; color: #526f7a; }
.ld-lightbox { width: min(1100px, 95vw); max-height: 95vh; padding: 3rem 1rem 1rem; border: 0; border-radius: .6rem; }
.ld-lightbox::backdrop { background: #102b38dc; }
.ld-lightbox img { display: block; max-width: 100%; max-height: 75vh; margin: auto; object-fit: contain; }
.ld-lightbox-close { position: absolute; right: 1rem; top: .3rem; border: 0; background: transparent; color: var(--ld-ink); font-size: 2rem; }
.ld-lightbox-caption { margin: .75rem 0 0; text-align: center; }
.ld-quiz { max-width: 900px; }
.ld-quiz-progress { width: 100%; height: .5rem; margin-bottom: 1.5rem; accent-color: var(--ld-blue); }
.ld-question-form { margin-bottom: 1.5rem; }
.ld-question-form legend { font-size: 1.35rem; margin: 1.5rem 0; }
.ld-answer { display: flex; align-items: flex-start; gap: .75rem; padding: 1rem; border: 1px solid var(--ld-line); border-radius: .4rem; margin-bottom: .75rem; cursor: pointer; }
.ld-answer:has(input:checked) { background: var(--ld-surface); border-color: var(--ld-blue); }
.ld-answer input { margin-top: .35rem; accent-color: var(--ld-blue); flex-shrink: 0; }
.ld-feedback { padding: 1.25rem; border-radius: .5rem; margin: 1rem 0 1.5rem; }
.ld-feedback h2 { font-size: 1.3rem; }
.ld-feedback--correct { background: #edf8f1; border: 1px solid #b7d9c3; }
.ld-feedback--incorrect { background: #fff4ee; border: 1px solid #e9c4b1; }
.ld-status-success { color: #206541; font-weight: 650; }
.ld-account-panel { max-width: 620px; padding: clamp(1.25rem, 4vw, 2.5rem); border: 1px solid var(--ld-line); background: var(--ld-surface); border-radius: .75rem; }
.ld-account-panel form label { display: block; margin-bottom: .3rem; }
.ld-account-panel input[type=text], .ld-account-panel input[type=password] { width: 100%; border: 1px solid #a8c2c9; border-radius: .3rem; padding: .7rem; }
.ld-account-panel .login-remember label { display: flex; align-items: center; gap: .5rem; }
.ld-account-panel input[type=submit] { border: 0; border-radius: .4rem; color: #fff; background: var(--ld-blue); padding: .7rem 1.3rem; }
.ld-account-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-block: 1rem 1.5rem; }
.ld-results-scroll { overflow-x: auto; }
.ld-results { width: 100%; border-collapse: collapse; }
.ld-results th, .ld-results td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--ld-line); }
.ld-results thead { background: var(--ld-surface); }
.ld-certificate-link { display: block; margin-top: .4rem; }
.ld-profile-form, .ld-questionnaire { max-width: 760px; margin-top: 3rem; }
.ld-learning :focus-visible, .ld-lightbox :focus-visible { outline: 3px solid var(--ld-blue); outline-offset: 4px; }
@media (max-width: 767px) {
  .ld-lesson-body--gallery, .ld-lesson-collection, .ld-grid-simple { grid-template-columns: 1fr; }
  .ld-lesson-body--gallery { gap: 1.5rem; }
  .ld-learning { padding-inline: 1.25rem; }
  .ld-results th, .ld-results td { padding: .75rem; }
}

/* Ordinary pages rebuilt with editable Polymer layouts. */
.ld-migrated-page .row { justify-content: center; }
.ld-migrated-page .logo-intro { display: block; width: min(100%, 360px); margin: 1rem auto 2rem; }
.ld-migrated-page .ld-lesson-collection { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }


/* Course catalog tabs mirror the design, with a full-width baseline. */
.ld-course-filters { display: flex; align-items: stretch; gap: 2rem; border-bottom: 1px solid #d9dbdd; margin-bottom: 2rem; }
.ld-course-tabs { display: flex; flex-wrap: wrap; gap: 2rem; }
.learnderm-classic .ld-course-filters a { display: inline-flex; align-items: center; padding: .75rem 0 1rem; border-bottom: 3px solid transparent; margin-bottom: -2px; text-decoration: none; color: #73777a; font-size: 1.125rem; font-weight: 700; transition: color 240ms ease, border-color 240ms ease; }
.learnderm-classic .ld-course-filters a:hover, .learnderm-classic .ld-course-filters a[aria-current="page"] { color: var(--ld-blue); border-bottom-color: var(--ld-blue); }
.ld-course-filters .ld-course-all { margin-left: auto; white-space: nowrap; font-size: .875rem; font-weight: 600; }
.ld-course-filters a:focus-visible { outline: 2px solid var(--ld-blue); outline-offset: 3px; }
.ld-course-catalog .ld-lesson-collection { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.ld-course-card { position: relative; transition: transform 240ms ease, border-color 240ms ease, box-shadow 240ms ease; }
.ld-course-card .ld-card-main::after { content: ''; position: absolute; inset: 0; }
.ld-course-card .ld-card-main:hover { text-decoration: none; }
.ld-course-card:focus-within { border-color: var(--ld-blue); }
[data-ld-course-results] { transition: opacity 180ms ease; }
.ld-course-catalog[aria-busy="true"] [data-ld-course-results] { opacity: .5; }
@media (hover: hover) and (pointer: fine) {
  .ld-course-card:hover { border-color: var(--ld-blue); transform: translateY(-4px); box-shadow: 0 8px 20px rgb(2 92 121 / 10%); }
}
@media (max-width: 991.98px) {
  .ld-course-catalog .ld-lesson-collection { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 767.98px) {
  .ld-course-filters, .ld-course-tabs { gap: 1rem; }
  .ld-course-filters { display: block; }
  .ld-course-tabs { flex-wrap: nowrap; overflow-x: auto; }
  .ld-course-tabs a { white-space: nowrap; }
  .ld-course-filters .ld-course-all { display: flex; width: max-content; padding-block: .5rem; }
  .ld-course-filters a { font-size: 1rem; }
  .ld-course-catalog .ld-lesson-collection { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .ld-course-card, .ld-course-filters a, [data-ld-course-results] { transition: none; }
  .ld-course-card:hover { transform: none; }
}