/* Catalog-only styling keeps the homepage and course detail pages independent. */
.catalog-page { --catalog-accent: #435dea; --catalog-divider: #d5dfed; }
.catalog-page h1, .catalog-page h2, .catalog-page h3 { color: var(--ink-900); font-weight: 700; letter-spacing: -0.025em; }
.catalog-page h2 { font-size: clamp(1.9rem, 3.1vw, 2.75rem); line-height: 1.15; margin: 0 0 1rem; }
.catalog-page h3 { font-size: clamp(1.4rem, 2vw, 1.75rem); line-height: 1.25; margin: 0 0 1rem; }
.catalog-page p { color: var(--ink-500); font-size: 1rem; line-height: 1.65; }
.catalog-page [id] { scroll-margin-top: 100px; }
.catalog-label { display: block; margin-bottom: 0.8rem; color: var(--catalog-accent); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; }
.catalog-label--muted { color: #536782; }
.catalog-link { display: inline-flex; align-items: center; gap: 0.6rem; min-height: 44px; color: var(--catalog-accent); font-weight: 600; line-height: 1.4; text-decoration: none; }
.catalog-link:hover { color: #304bdc; text-decoration: underline; text-underline-offset: 4px; }
.catalog-page a:focus-visible { outline: 3px solid rgba(67, 93, 234, 0.5); outline-offset: 4px; }
.catalog-button { display: inline-flex; align-items: center; justify-content: center; gap: 0.75rem; min-height: 48px; padding: 0.8rem 1.4rem; border: 1px solid var(--catalog-accent); border-radius: 8px; color: #fff; background: var(--catalog-accent); font-weight: 600; box-shadow: none; }
.catalog-button:hover, .catalog-button:focus-visible { color: #fff; background: #304bdc; border-color: #304bdc; }
.catalog-intro { position: relative; isolation: isolate; overflow: hidden; padding: 2.5rem 0 5rem; background: #fff; }
.catalog-intro__image { position: absolute; inset: 0 0 0 auto; z-index: -1; width: 70%; height: 100%; object-fit: cover; object-position: 70% center; mask-image: linear-gradient(to right, transparent, #000 32%); }
.catalog-breadcrumb { display: flex; gap: 0.6rem; align-items: center; margin-bottom: 3rem; color: var(--ink-500); font-size: 0.85rem; }
.catalog-breadcrumb a { color: var(--catalog-accent); text-underline-offset: 3px; }
.catalog-intro__copy { max-width: 540px; }
.catalog-intro__copy > .catalog-label {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.15rem;
  color: var(--catalog-accent);
  font-size: clamp(1.2rem, 1.6vw, 1.4rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.025em;
  text-transform: none;
}
.catalog-intro__copy > .catalog-label::before {
  content: "";
  flex: 0 0 1.75rem;
  height: 3px;
  background: var(--catalog-accent);
  border-radius: 2px;
}
.catalog-intro h1 { max-width: 18ch; margin: 0; font-size: clamp(2.4rem, 4vw, 3.5rem); line-height: 1.08; letter-spacing: -0.04em; }
.catalog-intro__copy p { max-width: 43ch; font-size: 1.15rem; margin: 1.5rem 0 1.8rem; }
.catalog-pathway { padding: 3rem 0; background: var(--blue-100); }
.catalog-pathway h2 { font-size: clamp(1.7rem, 2.5vw, 2.25rem); margin-bottom: 2rem; }
.catalog-pathway__steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; padding: 0; margin: 0; list-style: none; }
.catalog-pathway__steps li { position: relative; display: flex; gap: 1rem; }
.catalog-pathway__steps li:not(:last-child)::after { content: "→"; position: absolute; right: -1.75rem; top: 0.1rem; color: #7895d3; font-size: 1.5rem; }
.catalog-pathway__number { color: #748cdb; font-size: 2rem; font-weight: 700; line-height: 1.2; }
.catalog-pathway__steps h3 { margin: 0 0 0.4rem; font-size: 1.15rem; letter-spacing: 0; }
.catalog-pathway__steps p { margin: 0 0 0.4rem; }
.catalog-pathway__steps a { display: inline-block; padding: 0.45rem 0; color: #304bdc; font-size: 0.9rem; text-underline-offset: 3px; }
.catalog-pathway__soon { font-size: 0.8rem; color: var(--ink-500); }
.catalog-pathway__note { margin: 1.5rem 0 0; font-size: 0.85rem !important; }
.catalog-collection { padding: 4.5rem 0; }
.catalog-collection.catalog-collection--intro { padding-bottom: 0; }
.catalog-collection.catalog-collection--entries { padding-top: 0; }
.catalog-section-heading { margin-bottom: 2rem; }
.catalog-section-heading p { max-width: 66ch; margin: 0; font-size: 1.1rem; }
.catalog-update-feature { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2rem; padding: 1.7rem 2rem; margin-bottom: 2.5rem; background: var(--blue-100); }
.catalog-update-feature h3 { margin-bottom: 0.5rem; font-size: 1.6rem; }
.catalog-update-feature p { margin: 0; }
.catalog-update-feature .catalog-label { margin-bottom: 0.5rem; }
.catalog-update-feature__actions { display: flex; flex-direction: column; align-items: center; gap: 0.25rem; }
.catalog-update-feature__actions > .catalog-link { font-size: 0.85rem; text-decoration: underline; text-underline-offset: 3px; }
.catalog-entries { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 3.5rem; row-gap: 2.5rem; }
.catalog-entry { display: flex; flex-direction: column; min-width: 0; position: relative; }
.catalog-entry:nth-child(even)::before { content: ""; position: absolute; left: -1.75rem; top: 0; bottom: 0; width: 1px; background: var(--catalog-divider); }
.catalog-entry:nth-child(n+3) { padding-top: 2.5rem; border-top: 1px solid var(--catalog-divider); }
.catalog-entry__image { display: block; width: 100%; height: 160px; object-fit: cover; object-position: center 42%; margin-bottom: 1.5rem; }
.catalog-entry__image--study { object-position: center 30%; }
.catalog-entry__content { display: flex; flex-direction: column; flex: 1; }
.catalog-entry .catalog-label { font-size: 0.68rem; margin-bottom: 0.6rem; }
.catalog-entry h3 { margin-bottom: 0.7rem; }
.catalog-entry p { margin-bottom: 0.9rem; }
.catalog-entry__audience { font-size: 0.9rem !important; }
.catalog-entry__audience strong { color: var(--ink-700); }
.catalog-entry ul { padding-left: 1.1rem; margin: 0 0 0.8rem; color: var(--ink-700); font-size: 0.95rem; line-height: 1.6; }
.catalog-entry li { padding-left: 0.25rem; margin-bottom: 0.3rem; }
.catalog-entry li::marker { color: var(--catalog-accent); }
.catalog-entry__link { align-self: flex-start; margin-top: auto; }
.catalog-upcoming { padding: 3.5rem 0; background: var(--blue-100); }
.catalog-upcoming__entries { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3.5rem; }
.catalog-upcoming__entries article { position: relative; min-width: 0; }
.catalog-upcoming__entries article + article::before { content: ""; position: absolute; left: -1.75rem; top: 0; bottom: 0; width: 1px; background: #c4d5ea; }
.catalog-upcoming__entries h3 { max-width: 28ch; }
.catalog-upcoming__entries p { max-width: 52ch; }
.catalog-upcoming__actions { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.catalog-upcoming__actions .catalog-link { font-size: 0.9rem; }
.catalog-closing { padding: 4rem 0; text-align: center; background: #132c4a; }
.catalog-closing h2 { color: #fff; }
.catalog-closing p { max-width: 68ch; margin: 0 auto 1.5rem; color: rgba(255, 255, 255, 0.78); font-size: 1.1rem; }
.catalog-button--white { background: #fff; border-color: #fff; color: var(--catalog-accent); }
.catalog-button--white:hover, .catalog-button--white:focus-visible { background: #e7f1ff; border-color: #e7f1ff; color: #304bdc; }
@media (max-width: 991.98px) {
  .catalog-intro { padding: 1.5rem 0 0; display: flex; flex-direction: column; }
  .catalog-intro__copy { max-width: 100%; }
  .catalog-intro h1 { max-width: 22ch; font-size: clamp(2.2rem, 5vw, 2.8rem); }
  .catalog-intro__image { position: relative; inset: auto; z-index: auto; width: 100%; height: 300px; object-position: 80% center; mask-image: linear-gradient(to bottom, transparent, #000 25%); order: 2; margin-top: 1.2rem; }
  .catalog-intro__copy p { font-size: 1rem; }
  .catalog-pathway__steps { gap: 1.5rem; }
  .catalog-pathway__steps li { gap: 0.6rem; }
  .catalog-pathway__steps h3 { font-size: 1rem; }
  .catalog-pathway__steps li:not(:last-child)::after { right: -1.1rem; }
  .catalog-update-feature { gap: 1rem; padding: 1.5rem; }
  .catalog-update-feature__actions { align-items: flex-start; }
}
@media (max-width: 767.98px) {
  .catalog-intro { padding: 1.5rem 0 0; display: flex; flex-direction: column; }
  .catalog-breadcrumb { margin-bottom: 2rem; }
  .catalog-intro__copy { max-width: 100%; }
  .catalog-intro h1 { max-width: 18ch; font-size: clamp(2.2rem, 7vw, 2.8rem); }
  .catalog-intro__copy p { font-size: 1.05rem; margin: 1.25rem 0 1.5rem; }
  .catalog-intro__image { position: relative; inset: auto; z-index: auto; width: 100%; height: 230px; object-position: 80% center; mask-image: linear-gradient(to bottom, transparent, #000 25%); order: 2; margin-top: 1.2rem; }
  .catalog-intro > .container { position: relative; }
  .catalog-pathway, .catalog-collection, .catalog-upcoming { padding: 2.5rem 0; }
  .catalog-pathway__steps { grid-template-columns: 1fr; gap: 1.4rem; }
  .catalog-pathway__steps li:not(:last-child)::after { content: none; }
  .catalog-pathway__steps li { gap: 1rem; }
  .catalog-pathway__number { min-width: 2.5rem; }
  .catalog-pathway__steps p { font-size: 0.95rem; }
  .catalog-pathway__note { margin-top: 1rem; }
  .catalog-update-feature { grid-template-columns: 1fr; margin-bottom: 2rem; }
  .catalog-update-feature__actions { gap: 0.4rem; }
  .catalog-entries, .catalog-upcoming__entries { grid-template-columns: 1fr; gap: 2rem; }
  .catalog-entry:nth-child(even)::before { content: none; }
  .catalog-entry:nth-child(n+2) { padding-top: 2rem; border-top: 1px solid var(--catalog-divider); }
  .catalog-entry__image { height: 150px; margin-bottom: 1.2rem; }
  .catalog-upcoming__entries article + article { border-left: 0; border-top: 1px solid #c4d5ea; padding-left: 0; padding-top: 2rem; }
  .catalog-upcoming__entries article + article::before { content: none; }
  .catalog-closing { padding: 3rem 0; }
  .catalog-closing p { font-size: 1rem; }
}