.apps-hub {
  max-width: 1200px;
  margin: 0 auto;
  padding: 54px 24px 80px;
}
.apps-intro { max-width: 740px; margin-bottom: 38px; }
.apps-eyebrow { font-size: 13px; letter-spacing: .06em; color: var(--global-text-color); }
.apps-intro h1 { margin: 10px 0 18px; font-size: clamp(48px, 7vw, 76px); letter-spacing: -.055em; line-height: 1; }
.apps-intro h1 span { color: #438776; }
.apps-lead { font-size: 18px; line-height: 1.8; margin: 0; }
.apps-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.apps-filters { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 38px; }
.apps-filters a { display: inline-flex; align-items: center; gap: 10px; padding: 10px 14px; border: 1px solid var(--global-border-color); border-radius: 8px; color: var(--global-text-color); text-decoration: none; font-size: 13px; }
.apps-filters a:hover { border-color: var(--global-text-color); }
.apps-filters a[aria-current] { color: var(--global-bg-color); background: var(--global-text-color); border-color: var(--global-text-color); }
.apps-filters a:focus-visible { outline: 3px solid var(--global-link-color); outline-offset: 3px; }
.apps-count { font-size: 11px; font-variant-numeric: tabular-nums; opacity: .75; }
.apps-section { margin-bottom: 44px; scroll-margin-top: 90px; }
.apps-section[hidden] { display: none; }
.apps-section:last-child { margin-bottom: 0; }
.apps-section-header { border-top: 1px solid var(--global-border-color); padding-top: 25px; margin-bottom: 22px; }
.apps-section-heading { display: flex; align-items: baseline; gap: 12px; }
.apps-section-heading h2 { margin: 0; font-size: 25px; line-height: 1.4; letter-spacing: -.02em; }
.apps-section-index { font: 11px/1.5 ui-monospace, monospace; opacity: .7; }
.apps-section-header p { font-size: 14px; line-height: 1.7; margin: 10px 0 0; }
.apps-grid--single { grid-template-columns: 1fr; }
.apps-hub .apps-grid--single .app-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
.apps-grid--single .app-preview { aspect-ratio: auto; min-height: 220px; border-bottom: 0; border-right: 1px solid var(--global-border-color); }
.apps-hub .app-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--global-border-color);
  border-radius: 16px;
  color: var(--global-text-color);
  background: var(--global-bg-color);
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.apps-hub .app-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px #172f3220; text-decoration: none; }
.apps-hub .app-card:focus-visible { outline: 3px solid var(--global-link-color); outline-offset: 5px; }
.app-preview { aspect-ratio: 360 / 190; border-bottom: 1px solid var(--global-border-color); }
.app-preview svg { display: block; width: 100%; height: 100%; }
.app-preview--world-model-rl { background: #f0f5f7; }
.app-preview--jepa { background: #eef2e8; }
.app-preview--mono-color { background: #f8f7f2; }
.app-preview--world-model-history { background: #f1f2dc; }
.app-preview--roboscope { background: #22263d; }
.app-preview--training { background: #f5ede2; }
.app-card-body { padding: 25px; display: flex; flex-direction: column; flex: 1; }
.app-category { margin: 0 0 10px; font-size: 11px; text-transform: uppercase; letter-spacing: .09em; }
.app-card h2 { margin: 0 0 14px; font-size: 23px; line-height: 1.3; letter-spacing: -.025em; }
.app-description { margin: 0 0 26px; font-size: 15px; line-height: 1.8; }
.app-card-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--global-border-color); font-size: 11px; }
.app-open { font-size: 23px; line-height: 1; }
@media (max-width: 600px) {
  .apps-hub { padding: 30px 18px 50px; }
  .apps-grid { grid-template-columns: 1fr; gap: 22px; }
  .apps-lead { font-size: 16px; }
  .apps-intro { margin-bottom: 28px; }
  .apps-filters { gap: 8px; margin-bottom: 28px; }
  .apps-filters a { font-size: 12px; padding: 9px 11px; }
  .apps-section-heading h2 { font-size: 21px; }
  .apps-section-heading { gap: 9px; }
  .apps-hub .apps-grid--single .app-card { display: flex; }
  .apps-grid--single .app-preview { aspect-ratio: 360 / 190; min-height: 0; border-right: 0; border-bottom: 1px solid var(--global-border-color); }
}
@media (prefers-reduced-motion: reduce) { .apps-hub .app-card { transition: none; } .apps-hub .app-card:hover { transform: none; } }