/* One stable frame, with task-based access to the whole archive. */
.hud-app .main{grid-template-columns:202px minmax(0,1fr)}
.hud-app .main-nav{padding:18px 10px 12px;gap:5px}
.hud-app .main-nav .nav-caption{font-size:11px;padding:0 10px 12px}
.hud-app .main-nav>a,.hud-app .main-nav .nav-library-shortcuts>a,.hud-app .main-nav .nav-current-section>a{display:flex;align-items:center;gap:10px;min-height:46px;padding:10px;border-radius:7px;font-size:14px;text-decoration:none;color:#c9d7bb;flex:none}
.hud-app .main-nav a.active{background:#e3edac;color:#1d2b17}
.nav-group-label{display:block;font-size:11px;letter-spacing:1px;color:#a9b998;padding:18px 10px 8px}
.nav-library-shortcuts,.nav-current-section{display:grid;gap:5px}
.hud-app .main-nav .library-check-link{display:flex;align-items:center;gap:9px;padding:10px;min-height:50px;text-align:left;color:#e1eacb;border:1px solid #435338;border-radius:7px;background:#273320}
.main-nav .library-check-link>svg{width:17px;height:17px;flex-shrink:0}
.main-nav .library-check-link>span{flex:1;min-width:0}
.main-nav .library-check-link b{font-size:13px;line-height:1.3;font-weight:600}
.library-check-link em{font-size:12px;font-style:normal;font-variant-numeric:tabular-nums;background:#d8e9a8;color:#263919;padding:3px 6px;border-radius:5px}
.hud-app .main-nav .hud-more{display:flex;align-items:center;justify-content:flex-start;gap:10px;font-size:14px;min-height:46px;padding:11px 10px;color:#e5edc4;background:#33432b;border:1px solid #718352;border-radius:7px;margin-top:10px;text-align:left}
.main-nav .hud-more svg{width:18px;height:18px;flex-shrink:0}
.main-nav .nav-bottom{padding-top:18px}
.main-nav .nav-bottom>button{font-size:12px;min-height:40px}
.hud-app .hud-section-title>.eyebrow{letter-spacing:0;font:12px/1.4 Arial;color:#c0ccb2;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.acervo-directory{max-width:850px;margin:auto}
.acervo-search{display:flex;align-items:center;gap:15px;width:100%;text-align:left;background:#e8f4c3;color:#233516;border:1px solid #9fb77c;border-radius:12px;padding:18px;margin-bottom:22px}
.acervo-search>span{flex:1;display:grid;gap:4px}.acervo-search b{font-size:19px}.acervo-search small{font-size:14px;line-height:1.5}
.acervo-search svg{width:24px;height:24px;flex-shrink:0}
.acervo-groups{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.hud-app dialog .acervo-group h3{margin:0;font-size:20px}
.hud-app dialog .acervo-group summary p{font-size:14px;margin:4px 0 12px;color:#596747;line-height:1.5}
.acervo-links{display:grid;gap:8px}
.acervo-links>a,.acervo-links>button{display:flex;align-items:center;gap:12px;min-width:0;min-height:80px;width:100%;padding:13px;text-align:left;text-decoration:none;border:1px solid #536348;border-radius:9px;background:#243421;color:#edf2db}
.acervo-links :is(a,button):hover{background:#35492b;border-color:#b9d291}
.acervo-links>[aria-current=page]{border-color:#dcec9d;box-shadow:inset 3px 0 #dcec9d}
.acervo-links :is(a,button)>span{min-width:0;flex:1;display:grid;gap:4px}
.acervo-links b{font-size:16px;font-weight:650;line-height:1.35}
.acervo-links small{font-size:13px;color:#c6d4b6;line-height:1.45}
.acervo-links svg{width:19px;height:19px;flex-shrink:0}
.hud-app dialog .acervo-guide{font-size:14px;border-top:1px solid #536348;padding-top:18px;margin:24px 0 0;color:#596747}
.source-catalog-intro{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;padding:16px;background:#e8edd6;border:1px solid #a8b58b;border-radius:9px}
.source-catalog-intro p{font-size:15px;line-height:1.5;margin:0}.source-catalog-intro .btn{flex-shrink:0}
@media(max-width:800px),(max-width:950px) and (max-height:520px){
 .hud-app .main{grid-template-columns:minmax(0,1fr)}
 .hud-app .main-nav{padding:0 5px env(safe-area-inset-bottom,0px);gap:0;margin:0;width:100%}
 .hud-app .main-nav :is(.nav-library-shortcuts,.nav-current-section){display:none}
 .hud-app .main-nav>a.nav-primary,.hud-app .main-nav .hud-more{height:59px;min-height:59px;max-height:59px;display:flex;flex-direction:column;justify-content:center;align-items:center;font-size:11px;line-height:1.2;border:0;border-top:3px solid transparent;border-radius:0;margin:0;padding:7px 3px 5px;gap:5px;background:none}
 .hud-app .main-nav>a.nav-primary.active,.hud-app .main-nav .hud-more.active{background:#38482a;color:#f0f4bb;border-top-color:#e2e99e}
 .hud-app .hud-section-title>.eyebrow{font-size:11px}
 .acervo-groups{grid-template-columns:1fr;gap:24px}
 .acervo-search{padding:15px;gap:10px}.acervo-search b{font-size:17px}.acervo-search small{font-size:13px}
 .acervo-links :is(a,button){min-height:72px}
 .source-catalog-intro{display:grid;gap:10px}
}

.acervo-group>summary{cursor:pointer;list-style:none;padding:0 24px 10px 0;position:relative}.acervo-group>summary::-webkit-details-marker{display:none}.acervo-group>summary::after{content:"+";position:absolute;right:3px;top:0;font-size:22px;color:#4d633b}.acervo-group[open]>summary::after{content:"−"}.acervo-group:not([open]){border-bottom:1px solid #b7c1a3}.selection-explainer{padding:15px;border:1px solid #9ba982;border-radius:8px;background:#e9efda;color:#28381e}.selection-explainer a{text-decoration:underline;font-weight:700}