/* Public course discovery. Shared navigation and the lesson reader keep their own styles. */
.lesson-catalogue { color: var(--navy); background: #fff; }
.lesson-catalogue-hero { position: relative; isolation: isolate; min-height: clamp(370px, 33.333vw, 640px); display: grid; align-items: center; overflow: hidden; background: #e8f7ff; }
.lesson-catalogue-hero-art { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.lesson-catalogue-hero::after { content: ''; position: absolute; bottom: -1px; left: 0; width: 100%; height: 65px; pointer-events: none; background: url('/assets/learning/hero-wave.webp') bottom/100% 100% no-repeat; }
.lesson-catalogue-hero-inner { padding-block: 44px 58px; }
.lesson-catalogue-hero-copy { width: 47%; max-width: 650px; }
.lesson-catalogue h1, .lesson-catalogue h2, .lesson-catalogue h3 { font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif; font-weight: 800; letter-spacing: -.025em; }
.lesson-catalogue h1 { font-size: clamp(48px, 5.9vw, 86px); line-height: .99; text-wrap: balance; }
.lesson-catalogue-hero-copy > p { margin-top: 22px; font-size: clamp(17px, 1.9vw, 27px); line-height: 1.38; }
.lesson-catalogue-promise { display: inline-flex; align-items: center; gap: 12px; min-height: 50px; margin-top: 26px; padding: 10px 18px; border: 1px solid var(--royal); border-radius: 18px; background: #fffffff2; box-shadow: 0 3px 12px #0618b90b; color: var(--royal); font-size: clamp(13px, 1.3vw, 17px); font-weight: 600; line-height: 1.5; }
.lesson-catalogue-promise .icon { width: 27px; height: 27px; }
.lesson-catalogue-content { padding-top: 44px; padding-bottom: 76px; }
.lesson-catalogue-content > h2 { max-width: 900px; font-size: clamp(36px, 4.15vw, 58px); line-height: 1.08; text-wrap: balance; }
.lesson-catalogue-breadcrumbs { margin-bottom: 22px; font-size: 14px; color: #3d4a92; }
.lesson-catalogue-breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.lesson-catalogue-breadcrumbs li { display: inline-flex; align-items: center; gap: 12px; }
.lesson-catalogue-breadcrumbs li + li::before { content: '/'; color: #96a4c2; }
.lesson-catalogue-breadcrumbs a { display: inline-flex; align-items: center; min-height: 44px; }
.lesson-catalogue-breadcrumbs a:hover { text-decoration: underline; }
.lesson-catalogue-filters { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; max-width: 840px; margin-top: 24px; position: relative; z-index: 2; }
.lesson-catalogue-filter { min-width: 0; }
.lesson-catalogue-filter-label { display: block; margin-bottom: 7px; font-size: 15px; color: #334495; }
.lesson-catalogue-select { position: relative; }
.lesson-catalogue-select summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; padding: 12px 18px; border: 1px solid #cdd6fb; border-radius: 12px; background: #fff; font-size: 16px; font-weight: 500; line-height: 1.4; list-style: none; cursor: pointer; }
.lesson-catalogue-select summary::-webkit-details-marker { display: none; }
.lesson-catalogue-select summary > .icon { width: 20px; height: 20px; color: var(--royal); transition: transform 160ms ease; }
.lesson-catalogue-select summary:hover, .lesson-catalogue-select[open] summary { border-color: var(--royal); }
.lesson-catalogue-select summary:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.lesson-catalogue-select[open] summary > .icon { transform: rotate(180deg); }
.lesson-catalogue-select > ul { position: absolute; inset-inline: 0; top: calc(100% + 8px); z-index: 3; max-height: 360px; overflow-y: auto; overscroll-behavior: contain; padding: 7px; border: 1px solid #cdd6fb; border-radius: 12px; background: #fff; box-shadow: 0 14px 38px #121a641f; }
.lesson-catalogue-select a { display: flex; align-items: center; gap: 10px; min-height: 46px; padding: 10px 12px; border-radius: 8px; font-size: 15px; line-height: 1.35; }
.lesson-catalogue-select a:hover, .lesson-catalogue-select a[aria-current] { background: #eef3ff; color: #0026d9; }
.lesson-catalogue-select a[aria-current] { font-weight: 600; }
.lesson-catalogue-select a > .icon { width: 17px; height: 17px; }
.lesson-catalogue-filter-count { margin-left: auto; flex-shrink: 0; color: #566293; font-size: 12px; font-weight: 400; }
.lesson-catalogue-count { margin-top: 20px; font-size: 15px; color: #32468f; }
.lesson-catalogue-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 28px; }
.lesson-catalogue-card { min-width: 0; border: 1px solid #dce5ff; border-radius: 18px; background: #fff; box-shadow: 0 4px 18px #253e9d05; transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.lesson-catalogue-card-link { display: flex; flex-direction: column; height: 100%; border-radius: inherit; }
.lesson-catalogue-card-art { aspect-ratio: 3 / 2; overflow: hidden; border-radius: 17px 17px 0 0; background: #eaf6ff; }
.lesson-catalogue-card-art img { width: 100%; height: 100%; object-fit: cover; transition: transform 350ms ease; }
.lesson-catalogue-card-copy { display: flex; flex-direction: column; flex: 1; padding: 22px 26px 24px; }
.lesson-catalogue-card-subject { color: #354698; font-size: 13px; line-height: 1.45; }
.lesson-catalogue-card h3 { margin-top: 8px; font-size: clamp(27px, 2.2vw, 34px); line-height: 1.1; text-wrap: balance; }
.lesson-catalogue-card-description { margin-top: 16px; font-size: 16px; line-height: 1.55; color: #293b87; }
.lesson-catalogue-card-classes { margin-top: auto; padding-top: 24px; font-size: 14px; line-height: 1.6; color: #384c99; }
.lesson-catalogue-card-action { display: flex; align-items: center; gap: 12px; min-height: 44px; margin-top: 12px; color: var(--royal); font-size: 16px; font-weight: 600; }
.lesson-catalogue-card-action .icon { width: 21px; height: 21px; transition: transform 200ms ease; }
.lesson-catalogue-card:has(a:focus-visible) { border-color: var(--royal); }
.lesson-catalogue-empty { margin-top: 30px; padding: 42px 28px; border: 1px solid #dce5ff; border-radius: 20px; background: #f6f9ff; text-align: center; }
.lesson-catalogue-empty > .icon { width: 40px; height: 40px; color: var(--royal); }
.lesson-catalogue-empty h3 { max-width: 650px; margin: 16px auto 0; font-size: clamp(28px, 3vw, 38px); line-height: 1.15; text-wrap: balance; }
.lesson-catalogue-empty p { margin-top: 12px; font-size: 16px; }
.lesson-catalogue-empty .button { margin-top: 24px; }
@media (hover: hover) {
  .lesson-catalogue-card:hover { transform: translateY(-5px); border-color: #aebbff; box-shadow: 0 12px 28px #243ca215; }
  .lesson-catalogue-card:hover .lesson-catalogue-card-art img { transform: scale(1.035); }
  .lesson-catalogue-card:hover .lesson-catalogue-card-action .icon { transform: translateX(4px); }
}
@media (max-width: 1000px) {
  .lesson-catalogue-hero-copy { width: 49%; }
  .lesson-catalogue-hero-inner { padding-block: 38px; }
  .lesson-catalogue-grid { gap: 20px; }
  .lesson-catalogue-card-copy { padding: 19px 20px 20px; }
  .lesson-catalogue-card h3 { font-size: 28px; }
  .lesson-catalogue-card-description { font-size: 15px; }
}
@media (max-width: 800px) {
  .lesson-catalogue-hero { min-height: 340px; }
  .lesson-catalogue-hero-art { object-position: 44% center; }
  .lesson-catalogue-hero-copy { width: 50%; }
  .lesson-catalogue h1 { font-size: 48px; }
  .lesson-catalogue-hero-copy > p { font-size: 18px; }
  .lesson-catalogue-promise { gap: 8px; padding-inline: 12px; margin-top: 20px; font-size: 13px; }
  .lesson-catalogue-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-catalogue-content { padding-block: 34px 56px; }
  .lesson-catalogue-content > h2 { font-size: 42px; }
}
@media (max-width: 560px) {
  .lesson-catalogue-hero { display: flex; flex-direction: column; min-height: 0; }
  .lesson-catalogue-hero-inner { order: 0; width: 100%; padding: 28px 20px 24px; background: #eff9ff; }
  .lesson-catalogue-hero-copy { width: 100%; max-width: 440px; margin-inline: auto; }
  .lesson-catalogue h1 { max-width: 430px; font-size: clamp(42px, 12vw, 56px); line-height: 1.03; }
  .lesson-catalogue-hero-copy > p { margin-top: 16px; font-size: 18px; }
  .lesson-catalogue-promise { min-height: 44px; margin-top: 18px; font-size: 13px; border-radius: 14px; }
  .lesson-catalogue-promise .icon { width: 23px; height: 23px; }
  .lesson-catalogue-hero-art { order: 1; position: relative; z-index: auto; height: 228px; object-fit: cover; object-position: 76% center; }
  .lesson-catalogue-content { width: calc(100% - 40px); padding-top: 28px; }
  .lesson-catalogue-content > h2 { max-width: 340px; font-size: 40px; line-height: 1.05; }
  .lesson-catalogue-filters { grid-template-columns: 1fr; gap: 14px; margin-top: 22px; }
  .lesson-catalogue-select summary { min-height: 52px; }
  .lesson-catalogue-filter-label { margin-bottom: 5px; font-size: 14px; }
  .lesson-catalogue-select > ul { max-height: 300px; }
  .lesson-catalogue-count { margin-top: 18px; font-size: 14px; }
  .lesson-catalogue-grid { grid-template-columns: 1fr; gap: 22px; margin-top: 22px; }
  .lesson-catalogue-card-art { aspect-ratio: 16 / 10; }
  .lesson-catalogue-card-copy { padding: 20px 22px 18px; }
  .lesson-catalogue-card h3 { max-width: 390px; font-size: 30px; }
  .lesson-catalogue-card-description { margin-top: 14px; font-size: 16px; }
  .lesson-catalogue-card-classes { padding-top: 20px; }
  .lesson-catalogue-card-action { margin-top: 8px; }
  .lesson-catalogue-empty { padding: 30px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .lesson-catalogue-card, .lesson-catalogue-card-art img, .lesson-catalogue-card-action .icon, .lesson-catalogue-select summary > .icon { transition: none; }
  .lesson-catalogue-card:hover, .lesson-catalogue-card:hover .lesson-catalogue-card-art img, .lesson-catalogue-card:hover .lesson-catalogue-card-action .icon { transform: none; }
}
/* Catalogue search: one field above the class and subject filters. */
.lesson-catalogue-search { max-width: 840px; margin-top: 24px; scroll-margin-top: 24px; }
.lesson-catalogue-search-field { display: flex; align-items: center; gap: 10px; min-height: 56px; padding: 6px 6px 6px 18px; border: 1px solid #cdd6fb; border-radius: 12px; background: #fff; }
.lesson-catalogue-search-field:focus-within { border-color: var(--royal); outline: 3px solid var(--gold); outline-offset: 4px; }
.lesson-catalogue-search-field > .icon { flex: 0 0 auto; width: 20px; height: 20px; color: var(--royal); }
.lesson-catalogue-search-field input { flex: 1; min-width: 0; min-height: 44px; border: 0; padding: 0; background: transparent; color: inherit; font: inherit; font-size: 16px; outline: 0; }
.lesson-catalogue-search-field input::placeholder { color: #6f7bb0; }
.lesson-catalogue-search-field .button { flex: 0 0 auto; }
.lesson-catalogue-search-reset { display: inline-flex; align-items: center; min-height: 44px; margin-top: 4px; font-size: 15px; color: var(--royal); text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 430px) {
  .lesson-catalogue-search-field { flex-wrap: wrap; padding: 6px 12px 10px; }
  .lesson-catalogue-search-field .button { flex: 1 0 100%; }
}