/* Knowledge hub r4: first-party display styles, no remote fonts or measurement. */
.hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:26px}.hub-card{padding:25px;border:1px solid var(--org-line);border-radius:8px;background:var(--org-paper);display:flex;flex-direction:column;min-width:0}.hub-card h3{margin:0 0 12px;font-size:1.25rem}.hub-card p{font-size:16px;line-height:1.65;color:var(--org-muted);margin:0 0 22px}.hub-card a{margin-top:auto}.hub-building-image{display:block;text-decoration:none;border-radius:9px;overflow:hidden;background:var(--org-ink);color:white}.hub-building-image img{width:100%;height:auto;aspect-ratio:8/5;object-fit:cover}.hub-building-image span{display:block;padding:19px 22px;font-size:15px}.hub-feature{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:40px}.hub-feature img{display:block;width:100%;height:auto;border-radius:8px}.hub-prose{max-width:870px}.hub-prose p,.hub-prose li{line-height:1.8}.hub-language-list{columns:3;padding-left:22px}.hub-language-list li{break-inside:avoid;margin-bottom:10px}.org-hub .knowledge-hero h1{font-size:clamp(2.5rem,4.1vw,4.3rem)}.org-hub .hero-grid{grid-template-columns:1.1fr .9fr}.org-header .main-nav a{padding-inline:10px}.org-site a{overflow-wrap:anywhere}.org-site .hub-card:focus-within{outline:2px solid #647963;outline-offset:3px}
/* Long source URLs wrap; tables and decision diagrams keep their original local scroll areas. */
.handbook-r4 main{overflow-wrap:anywhere}
@media(min-width:821px){.org-header .nav-toggle{display:none}.org-header .main-nav{position:static;top:auto;left:auto;right:auto;max-width:none;background:transparent;padding:0;flex-direction:row;align-items:center;max-height:none;overflow:visible;box-shadow:none;border:0}}
@media(max-width:1000px){.hub-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hub-feature{gap:25px}}
@media(max-width:820px){.org-hub .hero-grid,.hub-feature{grid-template-columns:1fr}.hub-grid{grid-template-columns:1fr 1fr}.hub-language-list{columns:2}}
@media(max-width:540px){.hub-grid{grid-template-columns:1fr;gap:16px}.hub-card{padding:22px}.hub-language-list{columns:1}.hub-building-image span{padding:16px}.org-hub .knowledge-hero h1{font-size:2.55rem}}