/* BioLab Literature Workspace. Builds on the BioLab tokens (--bl-*) in
   biolab.css; everything here is scoped to .lit-* classes. */

.lit-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.lit-body .bl-main{padding-bottom:40px}

/* Hero */
.lit-hero{padding:32px 0 26px;background:radial-gradient(60% 80% at 85% 10%,#dbe9fa 0,rgba(244,248,252,0) 70%),radial-gradient(40% 60% at 5% 100%,#ece7fb 0,rgba(244,248,252,0) 70%),var(--bl-bg);border-bottom:1px solid var(--bl-line)}
.lit-hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px}
.lit-hero h1{font-size:clamp(1.9rem,3vw,2.5rem)}
.lit-tagline{margin-top:8px;font-size:1.12rem;font-weight:500;color:var(--bl-text)}
.lit-principle{margin-top:10px;max-width:640px;color:var(--bl-text-soft);font-size:.94rem;line-height:1.6}
.lit-stats{display:flex;gap:10px;margin:0;flex:none}
.lit-stats div{min-width:112px;background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius-sm);padding:12px 16px;box-shadow:var(--bl-shadow)}
.lit-stats dt{font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-muted)}
.lit-stats dd{margin:4px 0 0;font-size:1.6rem;font-weight:700;letter-spacing:-.03em;color:var(--bl-blue-deep);font-variant-numeric:tabular-nums;line-height:1}

/* Layout */
.lit-layout{display:grid;grid-template-columns:272px minmax(0,1fr);gap:28px;padding:28px 0 0;align-items:start}
.lit-side-toggle{display:none}
.lit-side{position:sticky;top:calc(var(--bl-header-h) + 60px);display:flex;flex-direction:column;gap:18px}
.lit-side-block{background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:16px 14px;box-shadow:var(--bl-shadow)}
.lit-side-block h2{font-size:.78rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--bl-muted);padding:0 8px}
.lit-side-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.lit-side-list{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-direction:column;gap:2px}
.lit-side-link{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;color:var(--bl-text-soft);text-decoration:none;font-size:.92rem;font-weight:500}
.lit-side-link .bl-icon{color:var(--bl-blue);width:1.05em;height:1.05em}
.lit-side-link span:nth-child(2){flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lit-side-link:hover{background:var(--bl-bg)}
.lit-side-link.is-active{background:var(--bl-blue-soft);color:var(--bl-blue-deep);font-weight:600}
.lit-count{font-size:.76rem;font-weight:600;color:var(--bl-muted);background:var(--bl-bg);border-radius:999px;padding:2px 8px;font-variant-numeric:tabular-nums}
.lit-side-link.is-active .lit-count{background:#fff}
.lit-clear{font-size:.8rem;color:var(--bl-blue-deep);text-decoration:none;font-weight:600}
.lit-clear:hover{text-decoration:underline}
.lit-facet{border-top:1px solid var(--bl-line);padding:8px 0 4px}
.lit-facet:first-of-type{margin-top:10px}
.lit-facet summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;padding:6px 8px;font-size:.88rem;font-weight:600;color:var(--bl-text)}
.lit-facet summary::-webkit-details-marker{display:none}
.lit-facet summary::after{content:"";width:8px;height:8px;border-right:1.6px solid var(--bl-muted);border-bottom:1.6px solid var(--bl-muted);transform:rotate(45deg);transition:transform .15s}
.lit-facet[open] summary::after{transform:rotate(225deg)}
.lit-facet ul{list-style:none;margin:2px 0 0;padding:0}
.lit-facet-link{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 8px;border-radius:8px;color:var(--bl-text-soft);text-decoration:none;font-size:.86rem}
.lit-facet-link:hover{background:var(--bl-bg)}
.lit-facet-link.is-active{color:var(--bl-blue-deep);font-weight:600;background:var(--bl-blue-soft)}
.lit-facet-tags{display:flex;flex-wrap:wrap;gap:6px;padding:4px 8px 6px}
.lit-side-note{margin:8px 8px 0;font-size:.82rem;line-height:1.5;color:var(--bl-muted)}
.lit-side-note a{color:var(--bl-blue-deep);text-decoration:none}
.lit-side-note a:hover{text-decoration:underline}
.lit-icon-btn{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;border:1px solid var(--bl-line);background:#fff;color:var(--bl-text-soft);cursor:pointer}
.lit-icon-btn:hover{border-color:var(--bl-blue);color:var(--bl-blue-deep)}

/* Toolbar */
.lit-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.lit-search{display:flex;flex:1 1 380px;gap:8px;min-width:0}
.lit-search-field{flex:1;display:flex;align-items:center;gap:10px;min-width:0;background:#fff;border:1px solid var(--bl-line-strong);border-radius:14px;padding:0 14px;min-height:48px}
.lit-search-field:focus-within{border-color:var(--bl-blue);box-shadow:0 0 0 4px rgba(38,117,200,.14)}
.lit-search-field .bl-icon{color:var(--bl-muted);flex:none}
.lit-search-field input{flex:1;min-width:0;border:0;background:none;font:inherit;font-size:.96rem;color:var(--bl-text);outline:none}
.lit-search-field input::-webkit-search-cancel-button{-webkit-appearance:none}
.lit-session{margin-left:auto;display:flex;align-items:center;gap:10px}
.lit-session-user{display:inline-flex;align-items:center;gap:8px;font-size:.86rem;color:var(--bl-text-soft);background:#fff;border:1px solid var(--bl-line);border-radius:12px;padding:8px 12px}
.lit-session-user .bl-icon{color:var(--bl-teal)}
.lit-session-user strong{color:var(--bl-text);font-weight:600}
.lit-session-user small{color:var(--bl-muted)}
.lit-tabs{display:flex;gap:4px;margin-top:18px;border-bottom:1px solid var(--bl-line)}
.lit-tab{position:relative;padding:10px 14px;color:var(--bl-text-soft);text-decoration:none;font-weight:600;font-size:.92rem;border-radius:8px 8px 0 0}
.lit-tab:hover{color:var(--bl-text);background:var(--bl-bg)}
.lit-tab.is-active{color:var(--bl-blue-deep)}
.lit-tab.is-active::after{content:"";position:absolute;left:10px;right:10px;bottom:-1px;height:2px;border-radius:2px;background:var(--bl-blue)}

/* Results */
.lit-results{margin-top:18px}
.lit-results-head{display:flex;align-items:center;gap:12px 16px;flex-wrap:wrap;margin-bottom:12px}
.lit-results-count{margin:0;color:var(--bl-text-soft);font-size:.92rem}
.lit-results-count strong{color:var(--bl-text)}
.lit-active{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}
.lit-active a{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 10px;font-size:.8rem;font-weight:600;background:var(--bl-blue-soft);color:var(--bl-blue-deep);text-decoration:none}
.lit-active .bl-icon{width:.9em;height:.9em}
.lit-sort{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:.86rem;color:var(--bl-muted)}
.lit-sort select,.lit-select select{font:inherit;font-size:.86rem;color:var(--bl-text);background:#fff;border:1px solid var(--bl-line-strong);border-radius:10px;padding:6px 10px}
.lit-collection-desc{display:flex;gap:10px;align-items:flex-start;margin:0 0 14px;color:var(--bl-text-soft);font-size:.92rem;line-height:1.55;background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius-sm);padding:12px 14px}
.lit-collection-desc .bl-icon{color:var(--bl-blue);margin-top:2px}
.lit-collection-desc a{color:var(--bl-blue-deep)}
.lit-list{display:flex;flex-direction:column;gap:12px}
.lit-empty,.lit-error{display:flex;gap:12px;align-items:flex-start;margin:0;padding:22px 20px;border:1px dashed var(--bl-line-strong);border-radius:var(--bl-radius);color:var(--bl-text-soft);font-size:.94rem;line-height:1.6;background:#fff}
.lit-empty .bl-icon,.lit-error .bl-icon{flex:none;color:var(--bl-blue);margin-top:3px}
.lit-error{border-style:solid;border-color:#f3dcae;background:var(--bl-amber-soft)}
.lit-error .bl-icon{color:var(--bl-amber)}
.lit-empty a{color:var(--bl-blue-deep)}

/* Cards */
.lit-card{background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:18px 20px;box-shadow:var(--bl-shadow);transition:box-shadow .2s,border-color .2s}
.lit-card:hover{border-color:var(--bl-line-strong);box-shadow:var(--bl-shadow-lg)}
.lit-card--external{border-style:dashed}
.lit-card-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.78rem}
.lit-head-spacer,.lit-links-spacer{flex:1}
.lit-type{border-radius:999px;padding:3px 10px;font-weight:600;background:var(--bl-blue-soft);color:var(--bl-blue-deep)}
.lit-type--review{background:var(--bl-violet-soft);color:#5236ad}
.lit-type--preprint{background:var(--bl-amber-soft);color:#8a5600}
.lit-type--clinical-study{background:var(--bl-teal-soft);color:#046b6f}
.lit-type--document,.lit-type--other,.lit-type--dataset{background:var(--bl-bg-deep);color:var(--bl-text-soft)}
.lit-year{color:var(--bl-muted);font-weight:600;font-variant-numeric:tabular-nums}
.lit-status{border-radius:999px;padding:3px 10px;font-weight:600;border:1px solid var(--bl-line-strong);color:var(--bl-text-soft);background:#fff}
.lit-status--reviewed{border-color:#b9e4e5;background:var(--bl-teal-soft);color:#046b6f}
.lit-status--reading{border-color:#d8ccf6;background:var(--bl-violet-soft);color:#5236ad}
.lit-in{display:inline-flex;align-items:center;gap:6px;color:var(--bl-muted);font-weight:500}
.lit-in .bl-icon{width:1em;height:1em}
.lit-external-badge{border-radius:999px;padding:3px 10px;font-weight:600;background:var(--bl-amber-soft);color:#8a5600}
.lit-title{margin-top:10px;font-size:1.08rem;line-height:1.35;letter-spacing:-.01em}
.lit-title a{color:var(--bl-text);text-decoration:none}
.lit-title a:hover{color:var(--bl-blue-deep);text-decoration:underline;text-underline-offset:3px}
.lit-meta{margin-top:6px;display:flex;flex-wrap:wrap;gap:4px 14px;color:var(--bl-text-soft);font-size:.88rem}
.lit-venue{font-style:italic}
.lit-snippet{margin-top:10px;color:var(--bl-text-soft);font-size:.9rem;line-height:1.6}
.lit-abstract-source{color:var(--bl-muted);font-size:.78rem}
.lit-snapshot{display:flex;gap:8px;align-items:flex-start;margin-top:10px;padding:10px 12px;border-radius:10px;background:var(--bl-ice);color:var(--bl-text-soft);font-size:.84rem;line-height:1.55}
.lit-snapshot .bl-icon{color:var(--bl-blue);flex:none;margin-top:2px}
.lit-snapshot strong{color:var(--bl-text);font-weight:600}
.lit-snapshot a{color:var(--bl-blue-deep)}
.lit-tags{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:10px 0 0;padding:0}
.lit-tags:empty{display:none}
.lit-tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 10px;font-size:.78rem;font-weight:600;background:var(--bl-blue-soft);color:var(--bl-blue-deep);text-decoration:none}
.lit-tag:hover{background:#d4e5f8}
.lit-tag.is-active{background:var(--bl-blue);color:#fff}
.lit-tag.is-active .lit-count{background:rgba(255,255,255,.2);color:#fff}
.lit-tag--keyword{background:var(--bl-bg-deep);color:var(--bl-text-soft);font-weight:500}
.lit-tag .lit-count{padding:0 6px;background:#fff}
.lit-links{display:flex;align-items:center;flex-wrap:wrap;gap:6px 14px;margin-top:12px;font-size:.84rem}
.lit-link{display:inline-flex;align-items:center;gap:5px;color:var(--bl-blue-deep);text-decoration:none;font-weight:600}
.lit-link:hover{text-decoration:underline;text-underline-offset:3px}
.lit-link .bl-icon{width:.9em;height:.9em}
.lit-link--primary{color:var(--bl-blue-deep)}
.lit-provenance{color:var(--bl-muted);font-size:.78rem}
.lit-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:12px;padding-top:12px;border-top:1px dashed var(--bl-line)}
.lit-select{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--bl-muted)}
.lit-btn{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 12px;border-radius:10px;border:1px solid var(--bl-line-strong);background:#fff;color:var(--bl-text);font:inherit;font-size:.84rem;font-weight:600;text-decoration:none;cursor:pointer}
.lit-btn:hover{border-color:var(--bl-blue)}
.lit-btn--ghost{border-color:transparent;color:var(--bl-blue-deep)}
.lit-btn--ghost:hover{background:var(--bl-blue-soft);border-color:transparent}
.lit-btn--danger{color:var(--bl-coral)}
.lit-btn--danger:hover{background:var(--bl-coral-soft)}
.lit-btn .bl-icon{width:1em;height:1em}
.bl-body .bl-btn-sm{min-height:38px;padding:0 14px;font-size:.86rem;border-radius:11px}
.lit-pager{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:20px;color:var(--bl-muted);font-size:.9rem}
.lit-discover-note{margin-bottom:14px}
.lit-source-picks{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0 0 14px;padding:10px 14px;border:1px solid var(--bl-line);border-radius:var(--bl-radius-sm);background:#fff;font-size:.86rem;color:var(--bl-text-soft)}
.lit-source-picks legend{padding:0 6px;font-weight:600;color:var(--bl-muted);font-size:.78rem}
.lit-source-picks label{display:inline-flex;align-items:center;gap:6px}

/* Dialogs */
.lit-dialog{border:0;border-radius:var(--bl-radius);padding:0;width:min(100% - 32px,520px);box-shadow:var(--bl-shadow-lg);color:var(--bl-text)}
.lit-dialog--wide{width:min(100% - 32px,720px)}
.lit-dialog::backdrop{background:rgba(20,34,59,.42);backdrop-filter:blur(3px)}
.lit-dialog-form{padding:22px 24px 24px;display:flex;flex-direction:column;gap:14px}
.lit-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.lit-dialog-head h2{font-size:1.25rem}
.lit-dialog-lead{margin:0;color:var(--bl-text-soft);font-size:.92rem;line-height:1.55}
.lit-field{display:flex;flex-direction:column;gap:6px;font-size:.84rem;font-weight:600;color:var(--bl-text-soft)}
.lit-field input,.lit-field textarea,.lit-field select{font:inherit;font-size:.95rem;font-weight:400;color:var(--bl-text);background:#fff;border:1px solid var(--bl-line-strong);border-radius:10px;padding:10px 12px;min-height:44px}
.lit-field textarea{min-height:80px;resize:vertical}
.lit-field input:focus,.lit-field textarea:focus,.lit-field select:focus{outline:none;border-color:var(--bl-blue);box-shadow:0 0 0 4px rgba(38,117,200,.14)}
.lit-field--grow{flex:1 1 100%}
.lit-add-row{display:flex;gap:10px;align-items:flex-end}
.lit-form-error{margin:0;color:var(--bl-coral);background:var(--bl-coral-soft);border-radius:10px;padding:10px 12px;font-size:.88rem}
.lit-dialog-actions{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
.lit-preview{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--bl-line);padding-top:14px}
.lit-preview h3{font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-muted)}
.lit-preview-note,.lit-preview-ids,.lit-hint{margin:0;font-size:.84rem;color:var(--bl-muted);line-height:1.5}
.lit-preview-ids code{background:var(--bl-bg);border-radius:6px;padding:1px 6px}
.lit-preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.lit-preview-grid .lit-field--grow{grid-column:1/-1}
.lit-collections-pick{border:1px solid var(--bl-line);border-radius:10px;padding:8px 12px 10px;flex-direction:row;flex-wrap:wrap;gap:6px 14px}
.lit-collections-pick legend{padding:0 6px;font-size:.78rem}
.lit-collections-pick label{display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--bl-text)}
.lit-check-list{display:flex;flex-direction:column;gap:8px}
.lit-check-list label{display:flex;align-items:center;gap:10px;font-weight:500;color:var(--bl-text);font-size:.92rem}
.lit-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:300;background:var(--bl-text);color:#fff;border-radius:12px;padding:12px 18px;font-size:.9rem;box-shadow:var(--bl-shadow-lg);max-width:min(92vw,520px)}
.lit-toast.is-error{background:var(--bl-coral)}

/* Detail */
.lit-detail{padding:24px 0 0}
.lit-back{display:inline-flex;align-items:center;gap:8px;color:var(--bl-text-soft);text-decoration:none;font-size:.9rem;font-weight:500;margin-bottom:16px}
.lit-back:hover{color:var(--bl-text)}
.lit-detail-card{background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:28px 32px;box-shadow:var(--bl-shadow);max-width:900px}
.lit-detail-card h1{margin-top:12px;font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.3}
.lit-detail-authors{margin-top:10px;color:var(--bl-text);font-size:.98rem;line-height:1.5}
.lit-detail-card .lit-links{margin-top:18px;gap:10px}
.lit-detail-section{margin-top:26px;padding-top:20px;border-top:1px solid var(--bl-line)}
.lit-detail-section h2{font-size:1.02rem}
.lit-detail-section h2 small{font-size:.78rem;font-weight:500;color:var(--bl-muted);margin-left:8px}
.lit-detail-section>p{margin-top:10px;color:var(--bl-text-soft);line-height:1.65}
.lit-detail-snapshot{background:var(--bl-ice);margin:26px -32px 0;padding:20px 32px;border-top:0}
.lit-detail-dl{display:grid;grid-template-columns:200px minmax(0,1fr);gap:8px 18px;margin:12px 0 0;font-size:.92rem}
.lit-detail-dl div{display:contents}
.lit-detail-dl dt{color:var(--bl-muted);font-weight:600}
.lit-detail-dl dd{margin:0;color:var(--bl-text);overflow-wrap:anywhere}
.lit-detail-dl a{color:var(--bl-blue-deep)}
.lit-detail-dl code{background:var(--bl-bg);border-radius:6px;padding:1px 6px}
.lit-corrections{margin:10px 0 0;padding-left:18px;color:var(--bl-text-soft);font-size:.9rem;line-height:1.6}
.lit-missing{padding:56px 0;text-align:left;max-width:560px}
.lit-missing h1{margin-top:10px;font-size:1.8rem}
.lit-missing p{margin:12px 0 22px;color:var(--bl-text-soft)}

/* Tablet */
@media(max-width:1023px){
  .lit-layout{grid-template-columns:1fr;gap:16px}
  .lit-side-toggle{display:inline-flex;align-self:flex-start}
  .lit-side{position:static;display:none}
  .lit-side.is-open{display:flex}
  .lit-hero-row{flex-direction:column;align-items:flex-start}
  .lit-stats{flex-wrap:wrap}
  .lit-detail-snapshot{margin-left:-24px;margin-right:-24px;padding-left:24px;padding-right:24px}
  .lit-detail-card{padding:24px}
}
/* Mobile */
@media(max-width:680px){
  .lit-hero{padding:20px 0 18px}
  .lit-principle{font-size:.9rem}
  .lit-stats div{min-width:0;flex:1 1 30%;padding:10px 12px}
  .lit-stats dd{font-size:1.3rem}
  .lit-toolbar{gap:10px}
  .lit-search{flex-basis:100%}
  .lit-search-btn{display:none}
  .lit-session{margin-left:0;width:100%}
  .lit-session>*{flex:1}
  .lit-add{flex:1}
  .lit-tabs{margin-top:14px}
  .lit-tab{padding:10px 10px;font-size:.88rem}
  .lit-results-head{gap:8px}
  .lit-sort{margin-left:0;width:100%}
  .lit-card{padding:14px 14px;border-radius:14px}
  .lit-title{font-size:1rem}
  .lit-links{gap:6px 12px}
  .lit-actions{gap:6px}
  .lit-actions .lit-btn span{display:none}
  .lit-preview-grid{grid-template-columns:1fr}
  .lit-add-row{flex-direction:column;align-items:stretch}
  .lit-dialog{width:calc(100% - 20px);max-height:calc(100dvh - 20px)}
  .lit-dialog-form{padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
  .lit-detail-card{padding:18px 16px}
  .lit-detail-snapshot{margin-left:-16px;margin-right:-16px;padding-left:16px;padding-right:16px}
  .lit-detail-dl{grid-template-columns:1fr;gap:2px}
  .lit-detail-dl dd{margin-bottom:8px}
  .lit-toast{bottom:calc(16px + env(safe-area-inset-bottom))}
}
@media(prefers-reduced-motion:reduce){.lit-card{transition:none}}

/* ── Evidence Graph ──────────────────────────────────────────────────────── */
.lit-hero--graph{background:radial-gradient(60% 80% at 80% 10%,#e4e9fb 0,rgba(244,248,252,0) 70%),radial-gradient(40% 60% at 5% 100%,#dff4f4 0,rgba(244,248,252,0) 70%),var(--bl-bg)}
.lit-graph-layout{padding-top:22px;display:flex;flex-direction:column;gap:16px}
.lit-graph-toolbar{display:flex;flex-wrap:wrap;align-items:flex-start;gap:12px 18px;background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:14px 16px;box-shadow:var(--bl-shadow)}
.lit-graph-views{display:flex;gap:4px}
.lit-tab--button{border:0;background:none;font:inherit;cursor:pointer}
.lit-graph-focus{display:flex;align-items:center;gap:8px;flex:1 1 320px;min-width:0}
.lit-search-field--sm{min-height:40px;border-radius:11px;padding:0 12px}
.lit-graph-filters{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;border:0;min-width:0;flex-basis:100%}
.lit-graph-filters legend{float:left;margin-right:10px;padding:5px 0;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-muted)}
.lit-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--bl-line-strong);border-radius:999px;padding:4px 10px 4px 8px;font-size:.8rem;font-weight:600;color:var(--bl-text-soft);background:#fff;cursor:pointer}
.lit-chip:has(input:checked){border-color:var(--bl-blue);color:var(--bl-text);background:var(--bl-blue-soft)}
.lit-chip input{margin:0;accent-color:var(--bl-blue)}
.lit-chip .lit-count{padding:0 6px}

.lit-graph-stage{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:14px;align-items:start}
.lit-graph-canvas-wrap{position:relative;background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);box-shadow:var(--bl-shadow);overflow:hidden;height:min(72vh,720px);min-height:420px}
.lit-graph-canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab;background:radial-gradient(circle at 50% 40%,#f8fbfe,#eef4fb)}
.lit-graph-canvas:focus-visible{outline:none;box-shadow:inset var(--bl-focus)}
.lit-graph-canvas.is-panning{cursor:grabbing}
.lit-graph-controls{position:absolute;right:12px;top:12px;display:flex;flex-direction:column;gap:6px}
.lit-graph-controls .lit-icon-btn{width:36px;height:36px;font-size:1.1rem;box-shadow:var(--bl-shadow)}
.lit-graph-hint{position:absolute;left:12px;bottom:10px;margin:0;font-size:.76rem;color:var(--bl-muted);background:rgba(255,255,255,.86);border-radius:8px;padding:4px 8px;pointer-events:none}
.lit-graph-detail{background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:16px 18px;box-shadow:var(--bl-shadow);max-height:min(72vh,720px);overflow:auto}
.lit-graph-detail h2{font-size:1.05rem;line-height:1.3;margin-top:8px}
.lit-graph-detail .lit-snippet{margin-top:8px}
.lit-graph-detail .lit-links{margin-top:10px}
.lit-graph-legend{display:flex;flex-wrap:wrap;gap:6px 16px;grid-column:1/-1;list-style:none;margin:0;padding:0;font-size:.8rem;color:var(--bl-text-soft)}
.lit-graph-legend li{display:inline-flex;align-items:center;gap:6px}
.lit-dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--bl-muted);flex:none}
.lit-line{display:inline-block;width:22px;height:0;border-top:2px solid #8aa2bf}
.lit-line--dashed{border-top-style:dashed}
.lit-dot--case,.lit-node-type--case{background:#14223b}
.lit-dot--gene,.lit-node-type--gene{background:#2675c8}
.lit-dot--protein,.lit-node-type--protein{background:#4fb3c9}
.lit-dot--variant,.lit-node-type--variant{background:#c94b62}
.lit-dot--disease,.lit-node-type--disease{background:#c77f0a}
.lit-dot--process,.lit-node-type--process{background:#008c91}
.lit-dot--drug,.lit-node-type--drug{background:#e3a01f}
.lit-dot--study,.lit-node-type--study{background:#64748b}
.lit-dot--publication,.lit-node-type--publication{background:#8aa2bf}
.lit-dot--hypothesis,.lit-node-type--hypothesis{background:#7150d8}
.lit-node-type{color:#fff}
.lit-node-type--publication,.lit-node-type--protein,.lit-node-type--drug{color:#14223b}

/* SVG nodes */
.lit-graph-canvas .lit-g-edge{stroke:#9fb3cc;stroke-width:1.3;fill:none;opacity:.8}
.lit-graph-canvas .lit-g-edge.is-proposed{stroke-dasharray:5 4;stroke:#a996e6}
.lit-graph-canvas .lit-g-edge.is-dim{opacity:.15}
.lit-graph-canvas .lit-g-edge.is-hot{stroke:var(--bl-blue);stroke-width:2.2;opacity:1}
.lit-graph-canvas .lit-g-node{cursor:pointer}
.lit-graph-canvas .lit-g-node circle{stroke:#fff;stroke-width:2;transition:r .15s}
.lit-graph-canvas .lit-g-node.is-proposed circle{stroke-dasharray:3 3;stroke:#7150d8}
.lit-graph-canvas .lit-g-node.is-dim{opacity:.25}
.lit-graph-canvas .lit-g-node.is-selected circle{stroke:var(--bl-text);stroke-width:3}
.lit-graph-canvas .lit-g-node:focus{outline:none}
.lit-graph-canvas .lit-g-node:focus circle{stroke:var(--bl-blue);stroke-width:4}
.lit-graph-canvas .lit-g-label{font-size:11px;fill:var(--bl-text);paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round;pointer-events:auto;font-weight:600}
.lit-graph-canvas .lit-g-label.is-small{font-size:9.5px;font-weight:500;fill:var(--bl-text-soft)}
.lit-graph-canvas .lit-g-label.is-quiet{opacity:0;transition:opacity .15s}
.lit-graph-canvas .lit-g-node:hover .lit-g-label.is-quiet,.lit-graph-canvas .lit-g-node:focus .lit-g-label.is-quiet,.lit-graph-canvas .lit-g-node.is-near .lit-g-label.is-quiet,.lit-graph-canvas .lit-g-node.is-selected .lit-g-label.is-quiet,.lit-graph-canvas.is-zoomed .lit-g-label.is-quiet{opacity:1}

/* List view */
.lit-graph-list{display:flex;flex-direction:column;gap:16px}
.lit-node-focus .lit-title{margin-top:8px;font-size:1.3rem}
.lit-node-h3{margin-top:16px;font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-muted)}
.lit-edge-list{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}
.lit-edge{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;padding:8px 10px;border-radius:10px;background:var(--bl-bg);font-size:.88rem}
.lit-edge--proposed{border:1px dashed #c9bdf0}
.lit-edge-rel{color:var(--bl-muted);font-weight:600;font-size:.8rem}
.lit-edge-node{display:inline-flex;align-items:center;gap:6px;color:var(--bl-text);text-decoration:none;font-weight:600}
.lit-edge-node:hover{color:var(--bl-blue-deep);text-decoration:underline}
.lit-edge-prov{margin-left:auto;color:var(--bl-muted);font-size:.76rem}
.lit-node-group{background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:16px 18px;box-shadow:var(--bl-shadow)}
.lit-node-group-title{display:flex;align-items:center;gap:8px;font-size:1rem}
.lit-node-list{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-direction:column;gap:4px}
.lit-node-item{padding:8px 0;border-top:1px solid var(--bl-line)}
.lit-node-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.lit-node-link{color:var(--bl-text);font-weight:600;text-decoration:none}
.lit-node-link:hover{color:var(--bl-blue-deep);text-decoration:underline}
.lit-node-desc{margin:4px 0 0;color:var(--bl-text-soft);font-size:.86rem;line-height:1.5}
.lit-node-edges{margin:4px 0 0;color:var(--bl-muted);font-size:.8rem;line-height:1.6}
.lit-node-edges a{color:var(--bl-blue-deep);text-decoration:none}
.lit-node-edges a:hover{text-decoration:underline}
.lit-node-edges .lit-edge--proposed{border:0;color:#5236ad}
.lit-detail-kv{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 0;padding:0;list-style:none}
.lit-detail-kv code{background:var(--bl-bg);border-radius:6px;padding:2px 6px;font-size:.78rem}

@media(max-width:1023px){
  .lit-graph-stage{grid-template-columns:1fr}
  .lit-graph-canvas-wrap{height:min(60vh,560px);min-height:360px}
  .lit-graph-detail{max-height:none}
}
@media(max-width:680px){
  .lit-graph-toolbar{padding:12px}
  .lit-graph-focus{flex-wrap:wrap}
  .lit-graph-focus .lit-search-field{flex-basis:100%}
  .lit-graph-canvas-wrap{height:56vh;min-height:320px;border-radius:14px}
  .lit-graph-hint{display:none}
  .lit-graph-detail{position:sticky;bottom:0;max-height:46vh;border-radius:14px 14px 0 0;box-shadow:0 -10px 30px -16px rgba(20,34,59,.35)}
  .lit-edge-prov{margin-left:0;flex-basis:100%}
}

/* ── Research layer: trails, hypotheses, gaps, notes ─────────────────────── */
.lit-hero--research{background:radial-gradient(60% 80% at 85% 10%,#ece7fb 0,rgba(244,248,252,0) 70%),radial-gradient(40% 60% at 5% 100%,#dff4f4 0,rgba(244,248,252,0) 70%),var(--bl-bg)}
.lit-research-layout{padding-top:20px;display:flex;flex-direction:column;gap:16px}
.lit-research-nav{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.lit-research-nav .lit-tabs{margin-top:0;flex:1 1 auto}
.lit-research-crossnav{margin:0 0 8px;font-size:.84rem;color:var(--bl-muted)}
.lit-research-crossnav a{color:var(--bl-blue-deep);text-decoration:none;font-weight:600}
.lit-research-crossnav a:hover{text-decoration:underline}
.lit-toolbar--research{align-items:center}
.lit-toolbar--research .lit-results-count{margin-right:auto}
.lit-status-filters{flex-basis:auto;align-items:center}
.lit-status-filters .lit-chip{text-decoration:none}
.lit-chip.is-on{border-color:var(--bl-blue);color:var(--bl-text);background:var(--bl-blue-soft)}
.lit-type--trail,.lit-type--hypothesis,.lit-type--gap,.lit-type--step{display:inline-flex;align-items:center;gap:6px}
.lit-type .bl-icon{width:1em;height:1em}
.lit-type--trail{background:var(--bl-teal-soft);color:#046b6f}
.lit-type--hypothesis{background:var(--bl-violet-soft);color:#5236ad}
.lit-type--gap{background:var(--bl-amber-soft);color:#8a5600}
.lit-type--step{background:var(--bl-bg-deep);color:var(--bl-text-soft)}
.lit-type--step-question{background:var(--bl-blue-soft);color:var(--bl-blue-deep)}
.lit-type--step-hypothesis{background:var(--bl-violet-soft);color:#5236ad}
.lit-type--step-gap{background:var(--bl-amber-soft);color:#8a5600}
.lit-type--step-next{background:var(--bl-teal-soft);color:#046b6f}
.lit-status--draft{border-style:dashed;color:#8a5600;background:var(--bl-amber-soft);border-color:#f3dcae}
.lit-status--hyp-proposed{border-color:#d8ccf6;background:var(--bl-violet-soft);color:#5236ad}
.lit-status--hyp-conditional{border-color:#f3dcae;background:var(--bl-amber-soft);color:#8a5600}
.lit-status--hyp-deprioritized,.lit-status--hyp-withdrawn{color:var(--bl-muted)}
.lit-status--gap-open{border-color:#f0c9cf;background:var(--bl-coral-soft);color:#a3313f}
.lit-status--gap-planned{border-color:#c6dcf3;background:var(--bl-blue-soft);color:var(--bl-blue-deep)}
.lit-status--gap-addressed{border-color:#b9e4e5;background:var(--bl-teal-soft);color:#046b6f}
.lit-trail-question{margin-top:8px;color:var(--bl-text);font-weight:500;font-size:.98rem;line-height:1.5}
.lit-trail-question--lead{font-size:1.1rem}

/* Trail page */
.lit-trail{padding:24px 0 0;max-width:960px}
.lit-trail-head{background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:26px 30px;box-shadow:var(--bl-shadow)}
.lit-trail-head h1{margin-top:12px;font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.25;letter-spacing:-.02em}
.lit-trail-summary{margin-top:12px;color:var(--bl-text-soft);line-height:1.65}
.lit-trail-provenance{display:block;margin-top:12px}
.lit-trail-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--bl-line)}
.lit-session--inline{margin:14px 0 0;justify-content:flex-start}
.lit-steps{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-direction:column;gap:0}
.lit-step{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:0 16px;padding-bottom:18px}
.lit-step::before{content:"";position:absolute;left:23px;top:44px;bottom:0;border-left:2px solid var(--bl-line-strong)}
.lit-step:last-child::before{display:none}
.lit-step-marker{display:flex;justify-content:center}
.lit-step-marker span{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:#fff;border:2px solid var(--bl-line-strong);color:var(--bl-text-soft);font-weight:700;font-size:.86rem;font-variant-numeric:tabular-nums}
.lit-step--question .lit-step-marker span{border-color:var(--bl-blue);color:var(--bl-blue-deep)}
.lit-step--hypothesis .lit-step-marker span{border-color:#7150d8;color:#5236ad}
.lit-step--gap .lit-step-marker span{border-color:var(--bl-amber);color:#8a5600}
.lit-step--next .lit-step-marker span{border-color:var(--bl-teal);color:#046b6f}
.lit-step-card .lit-title{font-size:1.15rem}
.lit-step-body{margin-top:10px;color:var(--bl-text-soft);line-height:1.65;font-size:.95rem}
.lit-step-tools{display:inline-flex;gap:4px}
.lit-step-provenance{margin-top:12px;display:block}

/* Resolved links */
.lit-res-links{display:flex;flex-direction:column;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid var(--bl-line)}
.lit-res-link-kind{display:block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-muted);margin-bottom:4px}
.lit-res-link-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.lit-res-link{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-size:.88rem;padding:6px 8px;border-radius:8px;background:var(--bl-bg)}
.lit-res-link>a:first-of-type,.lit-res-link>span:first-of-type{color:var(--bl-text);font-weight:600;text-decoration:none}
.lit-res-link>a:first-of-type:hover{color:var(--bl-blue-deep);text-decoration:underline}
.lit-res-meta,.lit-res-note{color:var(--bl-muted);font-size:.78rem}
.lit-res-note{flex-basis:100%;padding-left:20px}
.lit-res-role{border-radius:999px;padding:1px 8px;font-size:.72rem;font-weight:700;background:#fff;border:1px solid var(--bl-line-strong);color:var(--bl-text-soft)}
.lit-res-role--limits{border-color:#f0c9cf;color:#a3313f}
.lit-res-role--supports{border-color:#b9e4e5;color:#046b6f}
.lit-res-link .lit-link{margin-left:auto}
.lit-hyp-gaps{display:flex;gap:8px;align-items:flex-start;margin:12px 0 0;font-size:.86rem;line-height:1.55;color:var(--bl-text-soft)}
.lit-hyp-gaps .bl-icon{flex:none;color:var(--bl-amber);margin-top:2px}
.lit-hyp-gaps a{color:var(--bl-blue-deep);text-decoration:none;font-weight:600}
.lit-hyp-gaps a:hover{text-decoration:underline}
.lit-history{margin-top:12px;font-size:.84rem;color:var(--bl-text-soft)}
.lit-history summary{cursor:pointer;font-weight:600;color:var(--bl-muted)}
.lit-history-list{margin:8px 0 0;padding-left:18px;line-height:1.6}
.lit-history .lit-provenance{display:block;margin-top:6px}

/* Notes */
.lit-notes{margin-top:22px;background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius);padding:18px 20px;box-shadow:var(--bl-shadow)}
.lit-notes--compact{margin-top:14px;padding:12px 14px;box-shadow:none;background:var(--bl-ice)}
.lit-notes .lit-node-h3{margin-top:0;display:flex;align-items:center;gap:8px}
.lit-note-list{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.lit-note{padding:10px 12px;border-radius:10px;background:#fff;border:1px solid var(--bl-line)}
.lit-note-head{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:.78rem}
.lit-note-by{color:var(--bl-muted)}
.lit-note-body{margin:6px 0 0;font-size:.92rem;line-height:1.55;color:var(--bl-text);white-space:pre-wrap}
.lit-note-kind--limitation{border-color:#f0c9cf;color:#a3313f;background:var(--bl-coral-soft)}
.lit-note-kind--question{border-color:#c6dcf3;color:var(--bl-blue-deep);background:var(--bl-blue-soft)}
.lit-note-kind--method{border-color:#b9e4e5;color:#046b6f;background:var(--bl-teal-soft)}
.lit-note-del{margin-left:auto}
.lit-note-form{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.lit-note-form-row{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* Link picker (built by the bundle) */
.lit-picker{border:1px solid var(--bl-line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:8px}
.lit-picker-legend{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-muted)}
.lit-picker-row{display:flex;gap:8px;flex-wrap:wrap}
.lit-picker-row select,.lit-picker-row input{font:inherit;font-size:.9rem;border:1px solid var(--bl-line-strong);border-radius:10px;padding:8px 10px;min-height:40px;background:#fff;color:var(--bl-text)}
.lit-picker-row input{flex:1 1 220px;min-width:0}
.lit-picker-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.lit-picker-list:empty{display:none}
.lit-picker-chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 6px 4px 10px;font-size:.8rem;font-weight:600;background:var(--bl-blue-soft);color:var(--bl-blue-deep);max-width:100%}
.lit-picker-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}
.lit-picker-chip select{font:inherit;font-size:.74rem;border:0;background:#fff;border-radius:999px;padding:1px 6px}
.lit-picker-chip button{border:0;background:#fff;border-radius:50%;width:20px;height:20px;cursor:pointer;color:var(--bl-text-soft);display:grid;place-items:center;font-size:.9rem;line-height:1}

@media(max-width:1023px){
  .lit-trail-head{padding:20px 22px}
}
@media(max-width:680px){
  .lit-research-nav .lit-tab{padding:10px 8px;font-size:.84rem}
  .lit-research-nav .lit-tab .lit-count{display:none}
  .lit-toolbar--research .lit-add{flex:1 1 100%}
  .lit-status-filters{flex-basis:100%}
  .lit-trail-head{padding:16px}
  .lit-step{grid-template-columns:34px minmax(0,1fr);gap:0 10px}
  .lit-step::before{left:16px;top:38px}
  .lit-step-marker span{width:34px;height:34px;font-size:.76rem}
  .lit-res-link .lit-link{margin-left:0;flex-basis:100%}
  .lit-picker-chip span{max-width:160px}
}

/* Supplementary audit documentation of a case collection (not references) */
.lit-supplementary{margin:0 0 18px;background:#fff;border:1px solid var(--bl-line);border-radius:var(--bl-radius-sm);padding:12px 16px;font-size:.88rem;color:var(--bl-text-soft)}
.lit-supplementary summary{display:flex;gap:10px;align-items:flex-start;cursor:pointer;line-height:1.5}
.lit-supplementary summary strong{color:var(--bl-text)}
.lit-supplementary code{font:.78rem ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--bl-bg);border:1px solid var(--bl-line);border-radius:6px;padding:0 5px}
.lit-supplementary>p{margin:12px 0 8px;line-height:1.6}
.lit-supplementary ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.lit-supplementary li{display:grid;grid-template-columns:9rem minmax(0,1fr);gap:2px 12px;padding-top:8px;border-top:1px solid var(--bl-line)}
.lit-supplementary li a{display:inline-flex;align-items:center;gap:4px;font-weight:600;overflow-wrap:anywhere}
.lit-supplementary li small{grid-column:2;color:var(--bl-muted);font-size:.8rem;line-height:1.5}
.lit-supplementary-kind{grid-row:span 2;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--bl-violet)}
@media(max-width:600px){.lit-supplementary li{grid-template-columns:minmax(0,1fr)}.lit-supplementary li small{grid-column:1}.lit-supplementary-kind{grid-row:auto}}