.app-header{position:sticky;top:0;z-index:20;display:flex;align-items:end;justify-content:space-between;gap:1rem;padding:1rem;background:#1f4b45;color:#fff}.app-branding{min-width:0}.app-header h1{font-size:1.25rem;margin:0}.app-header p{margin:.25rem 0 0;font-size:.85rem;opacity:.88}.app-header #app-nav-slot{flex:0 0 auto}.app-nav{display:flex;gap:.4rem;flex-wrap:wrap}.app-nav button{border-color:#ffffff55;background:#ffffff12;color:#fff}.app-nav button.is-active{background:#fff;color:#1f4b45}.app-main{padding:1rem;max-width:1500px;margin:0 auto}.site-footer{display:flex;justify-content:center;align-items:center;gap:.8rem;flex-wrap:wrap;padding:.35rem .75rem;border-top:1px solid #d6dfdc;background:#f4f6f5;font-size:.76rem;line-height:1.2}.site-footer a{color:#315d56;text-decoration:underline;text-underline-offset:.15em}@media(max-width:800px){.app-header{align-items:stretch;flex-direction:column}.app-header #app-nav-slot{width:100%}.app-nav{overflow:auto;flex-wrap:nowrap}.app-nav button{white-space:nowrap}.site-footer{gap:.55rem;font-size:.72rem}}