/* Shared course catalogue: category pills and image-led programme cards. */
.course-catalog {
  --catalog-accent: var(--navy-900);
  --catalog-border: var(--brand-orange);
  padding: 64px 0;
  background: var(--white);
  scroll-margin-top: 100px;
}
.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
}
.catalog-filters[hidden], .catalog-card[hidden] { display: none; }
.catalog-filter {
  min-height: 44px;
  padding: 11px 24px;
  border: 1px solid var(--navy-900);
  border-radius: 999px;
  background: var(--white);
  color: var(--navy-900);
  font: 600 14px/1.4 var(--font-body);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}
.catalog-filter:hover { background: #fff4ef; }
.catalog-filter[aria-pressed="true"] {
  color: var(--catalog-accent);
  border-color: var(--brand-orange);
  background: #fff4ef;
  box-shadow: inset 0 0 0 1px var(--brand-orange);
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  align-items: stretch;
}
.catalog-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--catalog-border);
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 3px 12px rgba(11, 30, 66, .05);
  scroll-margin-top: 100px;
}
.catalog-grid--detailed { align-items: start; }
.catalog-grid--detailed .catalog-card-body > p { min-height: 96px; }
.catalog-card-media {
  display: block;
  position: relative;
  aspect-ratio: 1.55;
  overflow: hidden;
  background: var(--navy-950);
}
.catalog-card-media > img { width: 100%; height: 100%; object-fit: cover; }
.catalog-card[data-course="cyber-security"] .catalog-card-media > img { filter: brightness(1.2); }
.catalog-card-media .code-visual { padding: 20px; }
.catalog-card-media .code-visual-body { min-height: 120px; padding: 14px; font-size: 11px; }
.catalog-card-body { display: flex; flex-direction: column; flex: 1; padding: 25px 24px 24px; }
.catalog-card-body > :is(h2, h3) { color: var(--catalog-accent); font-size: 19px; line-height: 1.4; margin-bottom: 12px; }
.catalog-card-body > :is(h2, h3) a:hover { text-decoration: underline; text-underline-offset: 4px; }
.catalog-card-body > p { flex: 1; margin-bottom: 22px; color: var(--text-body); font-size: 15px; line-height: 1.6; }
.catalog-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0 0 24px; padding: 0; }
.catalog-badges li { border: 1px solid var(--navy-900); border-radius: 999px; padding: 5px 9px; color: var(--navy-900); font-size: 11.5px; font-weight: 600; line-height: 1.35; }
.catalog-facts { margin-bottom: 24px; padding: 14px; background: #fff7f3; border-radius: 10px; }
.catalog-facts > div { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 10px; font-size: 12.5px; line-height: 1.6; }
.catalog-facts > div + div { margin-top: 8px; }
.catalog-facts dt { color: var(--navy-900); font-weight: 700; }
.catalog-facts dd { color: var(--text-body); margin: 0; }
.catalog-details { border-top: 1px solid var(--border-hairline); margin-bottom: 20px; }
.catalog-details summary {
  position: relative;
  padding: 16px 30px 16px 0;
  min-height: 48px;
  list-style: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--catalog-accent);
}
.catalog-details summary::-webkit-details-marker { display: none; }
.catalog-details summary::after { content: "+"; position: absolute; right: 4px; top: 12px; font-size: 22px; font-weight: 400; }
.catalog-details[open] summary::after { content: "\2212"; }
.catalog-details summary:hover { text-decoration: underline; text-underline-offset: 4px; }
.catalog-details-content { padding-bottom: 6px; }
.catalog-details-content h3 { margin: 22px 0 10px; font-size: 15px; line-height: 1.4; color: var(--navy-900); }
.catalog-details-content h3:first-child { margin-top: 0; }
.catalog-details-content p, .catalog-details-content li { color: var(--text-body); font-size: 14px; line-height: 1.7; }
.catalog-topics, .catalog-careers { padding-left: 18px; }
.catalog-topics li + li, .catalog-careers li + li { margin-top: 7px; }
.catalog-details-content li::marker { color: var(--catalog-accent); }
.catalog-card-footer { border-top: 1px dotted var(--catalog-border); padding-top: 18px; text-align: center; }
.catalog-contact { display: block; padding: 14px 0 2px; color: var(--catalog-accent); font-size: 12.5px; font-weight: 600; }
.catalog-contact:hover { text-decoration: underline; text-underline-offset: 4px; }
.catalog-button.course-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: min(100%, 230px);
  min-height: 44px;
  padding: 11px 24px;
  border-radius: 999px;
  background: var(--brand-orange);
  color: var(--navy-950);
  font-size: 14px;
  font-weight: 700;
  transition: background .18s ease;
}
.catalog-button:hover { background: #FF762F; }
.catalog-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.catalog-actions .catalog-button { flex: 1 1 108px; width: auto; padding-inline: 12px; border: 1px solid var(--brand-orange); }
.catalog-button--outline.course-link { background: var(--white); color: var(--navy-900); border-color: var(--navy-900); }
.catalog-button--outline.course-link:hover { background: var(--surface-cyan-soft); }
.course-catalog :focus-visible { outline: 3px solid var(--navy-900); outline-offset: 4px; box-shadow: none; }
.catalog-card-media:focus-visible { outline-offset: -5px; outline-color: var(--amber-500); }
.catalog-help { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border-hairline); }
.catalog-help p { color: var(--text-muted); font-size: 14px; }
.catalog-help strong { color: var(--navy-900); }
.catalog-help a { color: var(--catalog-accent); font-size: 14px; font-weight: 700; padding: 10px 0; white-space: nowrap; }
.catalog-help a:hover { text-decoration: underline; text-underline-offset: 4px; }
.catalog-status { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 980px) {
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
  .catalog-filters { gap: 8px; }
  .catalog-filter { padding: 10px 18px; }
}
@media (max-width: 620px) {
  .course-catalog { padding: 44px 0; }
  .course-catalog > .wrap { padding-inline: 20px; }
  .catalog-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .catalog-filters { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 28px; }
  .catalog-filter { padding: 10px 8px; font-size: 12px; }
  .catalog-card-body { padding: 22px; }
  .catalog-card-body > :is(h2, h3) { font-size: 20px; }
  .catalog-grid--detailed .catalog-card-body > p { min-height: 0; }
  .catalog-help { align-items: flex-start; flex-direction: column; gap: 4px; }
}