/* Homepage: a quiet Challenge action beside the engineering CTA. */
.physical-home .header-project-actions{display:flex;align-items:center;gap:10px;margin-inline-start:auto;flex-shrink:0}
.physical-home .header-project-actions .partner-header-cta{margin:0}
.physical-home .homepage-challenge-cta{white-space:nowrap;font-size:12px;padding:10px 14px;min-height:44px;background:#fff;color:#1764a2;border-color:#c3d7e7;box-shadow:none}
.physical-home .homepage-challenge-cta:hover{background:#f2f7fb;border-color:#1764a2;transform:none;box-shadow:none}
.physical-home .challenge-mobile-label{display:none}
@media(max-width:1700px){.physical-home .nav-links{display:none}.physical-home .menu-btn{display:block}.physical-home .mobile-nav{position:fixed;top:76px;left:0;right:0;background:#fff;padding:18px 24px 28px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:99}.physical-home .mobile-nav.open{display:grid;gap:4px}.physical-home .mobile-nav a{padding:11px 8px;font-weight:700}}
@media(max-width:760px){.physical-home .header-project-actions{gap:0}.physical-home .language-switch{margin-inline-start:0}.physical-home .challenge-desktop-label{display:none}.physical-home .challenge-mobile-label{display:inline}.physical-home .homepage-challenge-cta{font-size:11px;padding:8px 10px}.physical-home .menu-btn{flex-shrink:0}}
@media(max-width:680px){.physical-home .mobile-nav{top:68px}}
@media(max-width:380px){html[data-site-locale] .physical-home .logo img{width:96px!important}html[data-site-locale] .physical-home .nav{gap:6px}.physical-home .language-switch summary{padding:9px 7px}.physical-home .homepage-challenge-cta{padding:8px}}