/* Library discovery and resilient sticky-anchor spacing. */
:root{--hub-nav-height:61px;--hub-anchor-offset:240px}
.acthub-filter{top:var(--hub-nav-height)}
.acthub-sec,.acthub-group[id]{scroll-margin-top:var(--hub-anchor-offset)}
.ah-feature{max-width:1048px;margin:28px auto;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;background:#edf3eb;border:1px solid #c8d8c9;border-radius:28px;color:#203c3c}
.ah-feature-visual{position:relative;min-width:0}
.ah-feature-visual img{display:block;width:100%;max-height:350px;object-fit:contain;border-radius:20px;background:#f9f7ef}
.ah-eyebrow{font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#275f51}
.ah-feature h2{font-size:clamp(1.65rem,3.2vw,2.5rem);line-height:1.12;margin:10px 0 14px}
.ah-feature p{line-height:1.55;margin:10px 0}
.ah-feature-steps{display:flex;gap:8px;flex-wrap:wrap;list-style:none;padding:0;margin:16px 0;font-weight:700;font-size:.85rem}
.ah-feature-steps li{padding:7px 10px;background:#fff;border:1px solid #d3ded1;border-radius:10px}
.ah-feature-actions{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 10px}
.ah-feature-actions a{min-height:48px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:11px 16px;font-weight:750;text-decoration:none;border:1px solid #275f51;color:#275f51;background:#fff}
.ah-feature-actions .ah-primary{background:#275f51;color:white}
.ah-feature a:focus-visible{outline:3px solid #124e96;outline-offset:4px}
.ah-feature .ah-access{font-size:.85rem;color:#405b50}
.ah-feature .ah-browse{display:inline-flex;align-items:center;min-height:44px;font-weight:700;text-underline-offset:4px;color:#275f51}
#procedural-sequencing .acthub-card{display:flex;flex-direction:column;align-items:stretch;padding:12px;gap:12px}
.ah-routine-art{width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#faf8f1;border-radius:12px}
#procedural-sequencing .acthub-card>span{padding:0 4px 5px}
.ah-routine-action{display:block;margin-top:10px;font-weight:750;color:#275f51;font-size:.88rem}
.ah-empty{padding:24px 16px;text-align:center;color:#526663}
@media(max-width:700px){.ah-feature{margin:20px 12px;padding:18px;gap:18px;grid-template-columns:1fr}.ah-feature-visual img{max-height:235px}.ah-feature-actions a{flex:1 1 180px}.ah-feature h2{margin-top:8px}.ah-routine-art{max-height:240px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}