/* Student Hub: one useful classroom image, a fast source list and explicit unpublished states. */
.student-hub { padding-block: 44px 92px; }
.hub-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(245px, .62fr); align-items: center; gap: clamp(24px, 5vw, 64px); margin-bottom: 30px; }
.hub-intro h1 { margin-bottom: 9px; font-size: clamp(2.7rem, 5.5vw, 4.7rem); }
.hub-intro > div > p { max-width: 64ch; font-size: 15px; }
.hub-photo { margin: 0; }
.hub-photo img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 16px; }
.hub-photo figcaption { margin-top: 7px; color: var(--muted); font-size: 12px; }
.hub-search-section { padding: 18px 0 14px; border-block: 1px solid var(--line); }
.hub-search-section > label, .hub-filter-label { display: block; margin-bottom: 7px; color: var(--text); font-size: 13px; font-weight: 600; }
.hub-controls { display: grid; grid-template-columns: minmax(0, 1fr) minmax(190px, .38fr); align-items: end; gap: 12px; }
.hub-controls input, .hub-controls select { width: 100%; min-height: 48px; padding-inline: 13px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); color: var(--text); font: inherit; font-size: 14px; }
.hub-category-control { display: grid; gap: 7px; }
.hub-filter-label { color: var(--text); font-size: 13px; font-weight: 600; }
.hub-controls input::placeholder { color: var(--faint); }
.hub-controls input:focus-visible, .hub-controls select:focus-visible { border-color: var(--teal); outline: 3px solid var(--teal-bright); outline-offset: 2px; }
.hub-count { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.hub-list-section { padding-top: 30px; }
.hub-list-section h2, .hub-materials h2 { margin-bottom: 14px; font-size: clamp(1.7rem, 3vw, 2.3rem); }
.hub-source-list { margin: 0; padding: 0; list-style: none; }
.hub-source-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 18px; padding-block: 16px; border-bottom: 1px solid var(--line); }
.hub-source-list h3 { margin: 3px 0; font-size: 16px; }
.hub-source-list p { margin: 0; color: var(--muted); font-size: 14px; }
.hub-category { color: var(--teal); font-size: 12px; font-weight: 700; }
.hub-source-list a { display: inline-flex; min-height: 44px; align-items: center; gap: 7px; color: var(--teal); font-size: 13px; font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.hub-source-list a:hover, .hub-source-list a:focus-visible { color: var(--text); }
.hub-no-results { padding-block: 23px; }
.hub-no-results p { margin-bottom: 6px; color: var(--text); font-size: 16px; font-weight: 600; }
.hub-no-results button, .hub-material-status button { min-height: 40px; }
.hub-materials { display: grid; grid-template-columns: minmax(195px, .7fr) minmax(0, 1.3fr); gap: 28px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.hub-materials > div > p { color: var(--muted); font-size: 14px; }
.hub-material-status { margin: 0; padding: 0; list-style: none; }
.hub-material-status li { display: grid; grid-template-columns: minmax(120px, .45fr) minmax(0, 1fr) auto; align-items: center; gap: 12px; padding-block: 11px; border-bottom: 1px solid var(--line); }
.hub-material-status li > span { color: var(--text); font-weight: 600; }
.hub-material-status p { margin: 0; color: var(--muted); font-size: 13px; }
.hub-material-status .text-button { text-decoration: underline; text-underline-offset: 3px; }
.hub-opportunities-note { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 15px; margin-top: 38px; padding-top: 19px; border-top: 1px solid var(--line); }
.hub-opportunities-note p { margin: 0; color: var(--text); font-weight: 600; }
.hub-opportunities-note > a { color: var(--teal); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.hub-opportunities-note small { flex-basis: 100%; color: var(--muted); font-size: 13px; }
@media (max-width: 760px) {
  .student-hub { padding-block: 28px 66px; }
  .hub-intro { grid-template-columns: minmax(0, 1fr); gap: 17px; margin-bottom: 21px; }
  .hub-intro h1 { font-size: clamp(2.7rem, 11vw, 3.6rem); }
  .hub-photo { max-width: 520px; }
  .hub-controls { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .hub-category-control { gap: 6px; }
  .hub-source-list li { grid-template-columns: minmax(0, 1fr); gap: 7px; padding-block: 15px; }
  .hub-source-list a { justify-self: start; }
  .hub-materials { grid-template-columns: minmax(0, 1fr); gap: 11px; margin-top: 35px; }
  .hub-material-status li { grid-template-columns: minmax(0, 1fr) auto; align-items: start; }
  .hub-material-status li > span { grid-column: 1; }
  .hub-material-status p { grid-column: 1; }
  .hub-material-status button { grid-column: 2; grid-row: 1 / span 2; }
}