/* One compact header, one open nebula field. Reading details retain their original width. */
.markdown-section:not(.has-detail){max-width:none;padding:16px 28px 36px;position:relative}
.markdown-section:not(.has-detail)>.heading-row{min-height:44px;justify-content:flex-end;margin-bottom:2px}
.markdown-section:not(.has-detail)>.heading-row .eyebrow{display:none}
.markdown-section:not(.has-detail)>h1{position:absolute;top:17px;left:28px;font-size:25px;line-height:44px;margin:0;letter-spacing:-.6px}
.markdown-section:not(.has-detail)>.intro{display:none}
.markdown-section:not(.has-detail)>#local-backup{margin:0 0 6px}
.markdown-section:not(.has-detail)>#local-backup>summary{font-size:11px;min-height:26px;padding:2px 0;line-height:22px}
.library-workspace{position:relative}
.library-workspace [hidden]{display:none!important}
.library-workspace.is-graph{height:calc(100svh - 110px);min-height:570px;max-height:1050px;display:flex;flex-direction:column;margin-top:4px;background:transparent;border:0}
#study-search:not(.is-detail){position:relative;z-index:8;flex:none;padding:0;margin:0 0 2px;border:0;border-radius:0;background:transparent;box-shadow:none}
#study-search:not(.is-detail) .searchrow{gap:6px}
#study-search:not(.is-detail) .searchrow input{min-height:44px;padding:9px 12px;font-size:15px;border:1px solid var(--line);border-radius:8px;background:var(--input)}
#study-search:not(.is-detail) .searchrow #clear{min-width:44px;min-height:44px;padding:0;border:0;border-radius:6px;background:transparent;font-size:24px;color:var(--muted)}
#study-search:not(.is-detail) .filterrow{display:flex;flex-wrap:nowrap;gap:8px;margin-top:2px;min-height:44px;align-items:center}
#study-search:not(.is-detail) #results{margin:0;max-width:none;font-size:11px;white-space:nowrap;color:var(--muted)}
#study-search:not(.is-detail) #category-panel{position:static;flex:1 1 auto;min-width:0;margin:0}
#study-search:not(.is-detail) #category-panel>summary{font-size:12px;min-height:44px;line-height:24px;padding:10px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink)}
#study-search:not(.is-detail) .filterrow:has(#category-panel[open]) #category-panel{flex-basis:auto}
#study-search:not(.is-detail) #category-panel[open]>.filter-sections{position:absolute;z-index:15;top:100%;left:0;right:0;max-height:calc(100svh - 225px);overflow:auto;overscroll-behavior:contain;padding:14px;background:var(--paper);border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 32px #08182c24}
.filter-sections .library-areas{margin-bottom:8px}
.filter-sections .views{margin:0 0 10px;padding-bottom:10px}
#study-search .browse-modes{display:flex;flex:none;gap:2px;margin:0;padding:0;border:0;border-radius:0;background:transparent}
#study-search .browse-modes button{min-width:44px;min-height:44px;padding:6px 8px;border:0;border-radius:0;background:transparent;font-size:12px;color:var(--muted);box-shadow:none}
#study-search .browse-modes button[aria-pressed=true]{color:var(--accent);background:transparent;box-shadow:inset 0 -2px 0 var(--accent)}
.is-graph .topic-browser{position:relative;display:flex;flex-direction:column;flex:1;min-height:0;margin:0}
.is-graph .browse-heading{order:2;position:static;display:block;flex:none;margin:1px 2px 5px;padding:0;border:0}
.is-graph .browse-heading h2{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);margin:0}
.is-graph .browse-heading p{margin:0;font-size:11px;line-height:18px;color:var(--muted)}
.map-controls{position:relative;z-index:7;order:1;display:flex;align-items:center;gap:6px;flex:none;margin:0;padding:0;border:0;background:transparent}
.map-controls select{width:0;min-width:0;flex:1;min-height:44px;padding:8px 11px;font-size:13px;border:1px solid var(--line);border-radius:8px;background:var(--input);color:var(--ink)}
#map-options{position:relative;flex:none;border:0;margin:0;padding:0}
#map-options>summary{display:grid;place-items:center;min-width:44px;min-height:44px;padding:0;border:0;border-radius:6px;background:transparent;font-size:24px;line-height:1;color:var(--muted);list-style:none}
#map-options>summary::-webkit-details-marker{display:none}
#map-options[open]>summary{color:var(--accent);background:var(--soft)}
.map-option-menu{position:absolute;z-index:20;top:calc(100% + 4px);right:0;width:180px;padding:5px;background:var(--paper);border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 30px #06182c26}
.map-option-menu button{display:block;width:100%;min-height:44px;padding:10px 12px;border:0;border-radius:5px;background:transparent;color:var(--ink);font-size:13px;text-align:left}
.map-option-menu button:hover,.map-option-menu button[aria-pressed=true]{background:var(--soft);color:var(--accent)}
.is-graph .map-layout{position:relative;order:3;display:block;flex:1;min-height:200px;margin:0;border:0;border-radius:10px;overflow:hidden;background:radial-gradient(circle at 50% 48%,#fcfdff,#f2f6fd)}
:root[data-theme=dark] .is-graph .map-layout{background:radial-gradient(circle at 50% 48%,#0b1220,#03060d 76%)}
.is-graph #topic-map{position:absolute;inset:0;min-height:0;height:100%;background:transparent;touch-action:none}
.nebula-canvas{display:block;width:100%;height:100%;outline:none;cursor:grab}
.nebula-canvas:active{cursor:grabbing}
.nebula-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.nebula-label{position:absolute;left:0;top:0;display:grid;place-items:center;min-height:44px;min-width:44px;padding:0 4px;border:0;border-radius:5px;pointer-events:auto;color:#254e80;background:transparent;font-size:12px;font-weight:500;line-height:20px;white-space:nowrap;box-shadow:none}
.nebula-label>span{display:block;padding:2px 6px;border:0;border-radius:4px;background:transparent;box-shadow:none;text-shadow:-1px 0 #f8fbff,1px 0 #f8fbff,0 -1px #f8fbff,0 1px #f8fbff}
:root[data-theme=dark] .nebula-label{color:#dcecff}
:root[data-theme=dark] .nebula-label>span{background:transparent;text-shadow:-1px 0 #07111e,1px 0 #07111e,0 -1px #07111e,0 1px #07111e}
.nebula-label:hover>span,.nebula-label:focus-visible>span,.nebula-label[aria-pressed=true]>span{color:var(--active-ink);background:var(--active);text-shadow:none}
#copy-status[data-kind=success]:not(:empty){position:fixed;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:25;max-width:calc(100vw - 24px);margin:0;padding:8px 12px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--ink);font-size:12px;line-height:1.6;box-shadow:0 4px 16px #06182b16;pointer-events:none}
.is-graph #copy-status[data-kind=success]:not(:empty){position:absolute;top:calc(100% + 70px);bottom:auto;max-width:calc(100% - 24px)}
.is-graph .topic-preview{position:absolute;z-index:6;right:12px;bottom:12px;width:300px;max-width:calc(100% - 24px);max-height:calc(100svh - 24px);box-sizing:border-box;margin:0;padding:14px 16px;background:var(--paper);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 28px #061c401b;touch-action:pan-y;overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;scroll-padding:12px}
.is-graph .topic-preview:not(.is-selected){display:none}
.is-graph .topic-preview #preview-kind{font-size:11px;padding-right:28px;color:var(--muted)}
.is-graph .topic-preview h3{font-size:17px;line-height:1.55;margin:6px 0 8px;padding-right:28px;overflow-wrap:anywhere}
.is-graph .topic-preview p{font-size:13px;line-height:1.75;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
#close-preview{position:absolute;top:0;right:0;min-width:44px;min-height:44px;padding:0;border:0;background:transparent;color:var(--muted);font-size:21px}
.is-graph #open-preview{min-height:44px;max-width:100%;padding:7px 14px;border-radius:6px;font-size:13px;white-space:normal;overflow-wrap:anywhere}
.library-workspace:not(.is-graph) .browse-heading{margin-top:8px}
.library-workspace:not(.is-graph) #topic-index{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.has-detail .library-workspace{height:auto;min-height:0;border:0;background:none}
.has-detail #study-search{position:static;padding:8px 0 16px}
.has-detail #study-search .searchrow,.has-detail #study-search .filterrow,.has-detail #hide-all,.is-graph #hide-all{display:none!important}
@media(max-width:700px){
 .markdown-section:not(.has-detail){padding:10px 12px 28px}
 .markdown-section:not(.has-detail)>h1{top:11px;left:14px;font-size:20px;letter-spacing:-.6px}
 .markdown-section:not(.has-detail)>.heading-row{margin-bottom:0}
 .markdown-section:not(.has-detail)>#local-backup{margin-bottom:4px;padding-left:2px}
 .library-workspace.is-graph{height:calc(100svh - 96px);min-height:525px;max-height:920px}
 #study-search:not(.is-detail) .searchrow input{font-size:16px;padding:8px 11px}
 #study-search:not(.is-detail) .filterrow{gap:6px}
 #study-search:not(.is-detail) #results{font-size:11px}
 #study-search .browse-modes button{padding:6px;font-size:12px}
 .map-controls select{font-size:16px}
 .is-graph .topic-preview{right:10px;bottom:10px;width:calc(100% - 20px);max-width:none;padding:12px 14px}
 .is-graph .topic-preview p{-webkit-line-clamp:2;font-size:12px}
 .nebula-label{font-size:12px}
 .library-workspace:not(.is-graph) #topic-index{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
}
@media(max-width:359px){
 .library-workspace:not(.is-graph) #topic-index{grid-template-columns:1fr}
 .markdown-section:not(.has-detail)>h1{font-size:18px}
}
@media(prefers-reduced-motion:reduce){.is-graph .map-option-menu button:disabled{opacity:1;cursor:default}}