/* Real page links keep familiar controls and support opening another tab. */
.page-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: .6rem .9rem;
  border: 1px solid var(--surface-border);
  border-radius: 9px;
  background: #172b32;
  color: var(--ink);
  font-size: .875rem;
  line-height: 1.4;
  text-decoration: none;
}
.page-link.primary { background: var(--accent); color: #102d28; border-color: var(--accent); font-weight: 600; }
.page-link.quiet { background: transparent; color: var(--text-secondary); }
a.course-open { text-decoration: none; }
.course-page { max-width: 1040px; }
.course-page .home-hero { margin-bottom: 1.8rem; }
.course-page .home-hero h1 { font-size: clamp(2rem, 4vw, 3rem); }
.course-page .resume-card { margin-bottom: 1.5rem; }
.course-lab-list { display: grid; gap: 1rem; }
.course-lab-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  background: #152329;
}
.course-lab-card .eyebrow { margin-bottom: .4rem; }
.course-lab-card h2 { font-size: 1.25rem; margin-bottom: .4rem; }
.course-lab-card p { font-size: .9375rem; color: var(--text-secondary); line-height: 1.6; margin: 0; }
.course-lab-card > a { flex-shrink: 0; }
.course-plan-link { display: inline-block; padding: 1rem 0; margin-top: .5rem; font-size: .9375rem; text-underline-offset: 4px; }
.topbar-actions #course-home { font-size: .8125rem; min-height: 42px; }
@media (hover: hover) and (pointer: fine) {
  .page-link:hover { background: #243d40; }
  .page-link.primary:hover { background: #b8ead9; }
}
@media (max-width: 740px) {
  .course-page { padding: 1.7rem 1rem; }
  .course-lab-card { align-items: stretch; flex-direction: column; gap: 1rem; padding: 1.25rem; }
  .course-page .resume-card { align-items: stretch; }
  .topbar-actions { flex-wrap: wrap; justify-content: flex-end; }
  .topbar-actions #course-home { min-height: 44px; }
}

.course-page h1:focus { outline: none; }

.mobile-course-navigation { display: none; }
@media (max-width: 740px) {
  #course-home:not([hidden]) + #home-button { display: none; }
  .mobile-course-navigation { display: flex; align-items: center; min-height: 44px; padding: .6rem .8rem; color: var(--ink); text-decoration: none; font-size: .875rem; }
}
@media (max-width: 740px) {
  .topbar { display: grid; grid-template-columns: minmax(0, 1fr) auto; }
  .topbar > .brand { grid-column: 1; grid-row: 1; min-width: 0; }
  .topbar .brand > div { min-width: 0; }
  .topbar .lab-picker { max-width: 100%; }
  .topbar .lab-picker select { max-width: 100%; }
  .topbar > .topbar-actions { grid-column: 2; grid-row: 1; flex-wrap: nowrap; }
  .topbar .mode-switch { grid-column: 1 / -1; }
}