/* Library-specific views built on the homepage's notebook primitives. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
input, select { font: inherit; color: inherit; min-width: 0; }
button, summary, select { cursor: pointer; }
input:focus-visible, select:focus-visible, summary:focus-visible { outline: 2px solid #575752; outline-offset: 3px; }
button:disabled { opacity: .4; cursor: default; }
.page-lede { max-width: 660px; }
.page-hero-panel { padding-bottom: 28px; }
.collection-tabs { margin-bottom: 0; gap: 6px 24px; }
.collection-tabs .updated { margin-left: auto; gap: 7px; font-size: 11px; cursor: default; }
.tab-count { margin-left: 3px; color: #909087; font: 11px var(--mono); }
.library-layout { display: grid; grid-template-columns: 215px minmax(0, 1fr); gap: 32px; margin-top: 28px; }
.library-sidebar { border-right: 1px solid var(--line); padding-right: 21px; }
.facet-tabs { display: flex; gap: 15px; margin-bottom: 13px; border-bottom: 1px solid var(--line); }
.facet-tabs button { border: 0; border-bottom: 2px solid transparent; padding: 0 0 9px; background: none; font-size: 12px; color: var(--muted); }
.facet-tabs button.active { color: var(--ink); border-bottom-color: #53534e; }
.facet { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; width: 100%; border: 0; background: none; text-align: left; padding: 7px 9px; margin: 2px 0; border-radius: 4px; font-size: 12px; line-height: 1.6; color: #72726a; }
.facet:hover { background: var(--soft); color: var(--ink); }
.facet.active { color: var(--ink); background: #f0f0ed; font-weight: 500; }
.facet-count { font: 10px var(--mono); color: #929289; flex-shrink: 0; }
.sidebar-note { border-top: 1px solid var(--line); padding-top: 18px; margin: 22px 8px 0; color: var(--muted); }
.sidebar-note p { margin-top: 7px; font-size: 11px; line-height: 1.9; }
.library-main { min-width: 0; scroll-margin-top: 20px; }
.search-box { display: flex; gap: 10px; align-items: center; padding: 10px 13px; border: 1px solid #deded9; border-radius: 4px; background: #fcfcfb; }
.search-box .icon { color: #89897f; }
.search-box input { width: 100%; border: 0; background: transparent; font-size: 13px; line-height: 1.8; }
.search-box input::placeholder { color: #8d8d83; }
.search-box:focus-within { border-color: #73736e; outline: 1px solid #73736e; }
.search-box input:focus { outline: 0; }
.library-filters { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1fr; gap: 8px; margin-top: 12px; }
.library-filters select, .advanced-filter select, #sort { border: 1px solid var(--line); border-radius: 4px; background: white; padding: 7px 23px 7px 9px; font-size: 11px; max-width: 100%; }
.library-filters .mobile-facet { display: none; }
.advanced-filter { margin-top: 10px; font-size: 11px; color: var(--muted); }
.advanced-filter summary { width: fit-content; }
.advanced-filter select { width: 100%; margin-top: 8px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 6px; }
.active-filters:not(:empty) { margin-top: 14px; }
.active-filters button { border: 1px solid #e3e3dd; border-radius: 3px; padding: 2px 7px; background: var(--soft); font-size: 11px; }
.results-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 20px 0 13px; }
#count { font-size: 12px; color: var(--muted); }
#sort { border-color: transparent; padding-right: 0; color: var(--muted); }
#list { display: grid; gap: 13px; }
.paper-card { min-width: 0; padding: 20px 21px 0; border: 1px solid var(--line); border-radius: 5px; background: white; box-shadow: 0 1px 3px #25251b07, 0 2px 8px #25251b03; }
.paper-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 9px; font-size: 10px; line-height: 1.5; color: var(--muted); margin-bottom: 9px; }
.paper-year { font: 11px var(--mono); color: #45453f; }
.paper-meta .rank { border: 1px solid #e8e8e2; border-radius: 3px; padding: 1px 5px; font-size: 9px; line-height: 1.5; }
.rank:hover { border-color: var(--muted); }
.paper-title { font-size: 16px; line-height: 1.65; letter-spacing: -.012em; overflow-wrap: anywhere; }
.paper-title a:hover { text-decoration: underline; text-decoration-color: #b1b1a7; text-underline-offset: 4px; }
.paper-authors { margin-top: 9px; font-size: 12px; line-height: 1.75; color: #74746b; overflow-wrap: anywhere; }
.paper-venue { margin-top: 3px; font-size: 12px; color: #64645d; }
.paper-tags { display: flex; flex-wrap: wrap; align-items: baseline; gap: 5px; margin-top: 8px; }
.paper-tags:first-of-type { margin-top: 13px; }
.tag-label { color: #939389; font-size: 10px; width: 43px; flex-shrink: 0; }
.paper-tags button { border: 0; padding: 2px 6px; font-size: 10px; line-height: 1.7; text-align: left; }
.paper-tags .method-tag { background: none; border: 1px solid #ecece6; padding-block: 1px; }
.paper-tags button:hover { color: #222; background: #e8e8e2; }
.paper-links { display: flex; align-items: center; flex-wrap: wrap; gap: 9px 15px; padding: 15px 0 13px; font-size: 11px; }
.version-links { display: inline-flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.read-link { display: inline-flex; align-items: center; gap: 5px; font-weight: 500; }
.read-link .icon { width: 14px; height: 14px; flex-basis: 14px; }
.download-link, .doi-link { color: var(--muted); }
.paper-links a:hover { text-decoration: underline; text-underline-offset: 3px; }
.pdf-size { color: #929289; font: 9px var(--mono); }
.paper-detail { border-top: 1px solid #f0f0eb; font-size: 11px; color: var(--muted); }
.paper-detail summary { padding: 9px 0; }
.detail-body { padding: 4px 0 16px; overflow-wrap: anywhere; }
.detail-body p + p { margin-top: 9px; }
.technique { border: 1px solid var(--line); background: white; border-radius: 3px; padding: 1px 5px; margin: 0 4px 5px 0; font-size: 11px; }
.detail-body a { text-decoration: underline; text-underline-offset: 3px; }
.pager { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 25px; }
#page-info { color: var(--muted); font: 11px var(--mono); }
.export-bar { border-top: 1px solid var(--line); display: flex; gap: 9px; flex-wrap: wrap; margin-top: 25px; padding-top: 18px; }
.export-bar .button { font-size: 11px; }
.file-format { font: 9px var(--mono); color: #929289; margin-left: 4px; }
.empty { text-align: center; padding: 65px 20px; border: 1px dashed var(--line); border-radius: 4px; font-size: 13px; color: var(--muted); }
.empty .button { margin-top: 18px; }
.toast { position: fixed; bottom: 25px; left: 50%; transform: translateX(-50%); max-width: calc(100% - 40px); background: var(--ink); color: white; padding: 10px 18px; font-size: 12px; border-radius: 5px; z-index: 30; }
.resource-view { min-height: 60vh; }
.resource-empty { padding: 55px 25px; text-align: center; border: 1px dashed var(--line); border-radius: 5px; color: var(--muted); }
.resource-empty > .icon { width: 25px; height: 25px; margin-bottom: 13px; }
.resource-empty h2 { font-size: 16px; color: var(--ink); }
.resource-empty p { margin-top: 9px; font-size: 13px; }
@media (max-width: 860px) {
    .library-layout { grid-template-columns: 180px minmax(0, 1fr); gap: 22px; }
    .library-sidebar { padding-right: 14px; }
    .library-filters { grid-template-columns: 1fr 1fr; }
    .collection-tabs .updated { display: none; }
}
@media (max-width: 640px) {
    .library-layout { display: block; margin-top: 22px; }
    .library-sidebar { display: none; }
    .library-filters .mobile-facet { display: block; }
    .collection-tabs { gap: 5px 19px; }
    .collection-tabs > button { font-size: 12px; }
    .paper-card { padding: 17px 16px 0; }
    .paper-title { font-size: 15px; }
    .paper-links { gap: 10px; }
    .page-hero-panel { padding-bottom: 21px; }
    .quick-stats { gap: 4px 12px; }
    .search-box input { font-size: 16px; }
    .search-box input::placeholder { font-size: 12px; }
    .library-filters select, .advanced-filter select { min-height: 38px; font-size: 12px; }
    .pager { gap: 14px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }