:root{
  --bg:#f7f7f5; --panel:#fff; --ink:#1c1c1e; --dim:#6b6b70; --line:#e2e2dd;
  --accent:#2b5c8a; --cite:#8a4b2b; --cite-bg:#f6e9df; --fn:#2b6a8a;
  --hit:#ffd23f; --award:#1f7a4d; --warn:#a33;
  --sidebar-w:380px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg)}
#app{display:flex;height:100vh;overflow:hidden}
.dim{color:var(--dim)}

/* ---- sidebar ---- */
#sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--panel);
  border-right:1px solid var(--line);display:flex;flex-direction:column;height:100vh}
.side-collapsed #sidebar{display:none}
.sidebar-header{display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-bottom:1px solid var(--line)}
.sidebar-header h1{font-size:15px;margin:0;font-weight:650}
.icon-btn,.open-side{border:1px solid var(--line);background:#fff;border-radius:6px;
  cursor:pointer;padding:3px 8px;font-size:13px;color:var(--dim)}
.open-side{position:absolute;top:12px;left:12px;z-index:20}
.side-scroll{overflow-y:auto;flex:1;padding:10px 12px}
.side-block{margin-bottom:14px}
.side-title{font-weight:650;font-size:13px;margin:4px 0 6px;cursor:default}
.side-title.collapsible{cursor:pointer}
.side-title .caret{display:inline-block;width:12px;color:var(--dim)}
.side-title.collapsed .caret{transform:rotate(-90deg)}

/* ---- filters + case list ---- */
.case-filters{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}
.case-filters input,.case-filters select{font:inherit;padding:5px 7px;border:1px solid var(--line);
  border-radius:6px;background:#fff;color:var(--ink)}
.filter-row{display:flex;gap:6px}
.filter-row select{flex:1;min-width:0}
#case-list{list-style:none;margin:0;padding:0;max-height:38vh;overflow-y:auto;
  border:1px solid var(--line);border-radius:8px}
#case-list li{padding:6px 9px;border-bottom:1px solid var(--line);cursor:pointer;
  display:flex;flex-direction:column;gap:1px}
#case-list li:last-child{border-bottom:none}
#case-list li:hover{background:#f0f4f8}
#case-list li.active{background:#e4eef7;box-shadow:inset 3px 0 0 var(--accent)}
.cl-id{font-weight:600;font-size:12.5px;line-height:1.25}
.cl-meta{font-size:11px}
.cl-tags{display:flex;gap:5px;align-items:center;margin-top:1px}
.cl-wf{font-size:10px;padding:1px 5px;border-radius:8px;font-weight:600}
.wf-found{background:#fbe4e0;color:#a5341f}
.wf-deems{background:#fdefe0;color:#a56320}
.wf-none{background:#e6eef5;color:#3a6a92}
.cl-award{color:var(--award);font-weight:800}

/* ---- header + meta ---- */
.ch-title{font-weight:650;font-size:15px;line-height:1.3}
.ch-sub{color:var(--dim);font-size:12.5px;margin-top:2px}
.ch-pid{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--dim);
  margin-top:3px;user-select:all}
.cl-pid{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:9.5px;letter-spacing:-.2px}
.ch-badge.wf{display:inline-block;margin-top:6px;font-size:11px;padding:2px 8px;border-radius:9px;font-weight:600}
.ch-judge{margin-top:6px;font-size:12.5px}
.mrow{display:flex;gap:8px;padding:2px 0;font-size:12.5px;border-bottom:1px dotted var(--line)}
.mrow .mk{color:var(--dim);flex:0 0 40%}
.mrow .mv{flex:1;text-align:right}
.mrow.warn{color:var(--warn);font-style:italic}
.mk.sl{font-weight:500}
.mblock{margin-top:10px}
.mblock>.mk{font-weight:650;color:var(--ink);font-size:12.5px;margin-bottom:4px;display:block}
.award-row{display:flex;justify-content:space-between;gap:8px;padding:3px 0;font-size:12.5px;border-bottom:1px dotted var(--line)}
.aw-name{color:var(--dim)}
.aw-amt{font-weight:600}
.aw-awarded .aw-amt{color:var(--award)}
.ref{padding:3px 6px;margin:2px 0;border:1px solid var(--line);border-radius:6px;font-size:12px;cursor:default}
.ref-click{cursor:pointer}
.ref-click:hover{background:#f0f4f8}
.ref.active{background:#fff6d8;border-color:var(--hit)}
.ref-name{color:var(--cite)}

/* ---- main panel ---- */
#main{flex:1;display:flex;flex-direction:column;height:100vh;overflow:hidden}
.panel{display:flex;flex-direction:column;height:100%;overflow:hidden}
.tree-toolbar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:10px 16px;border-bottom:1px solid var(--line);background:var(--panel)}
.toolbar-title{font-weight:650}
.toolbar-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:#fff;border-radius:6px;cursor:pointer;padding:4px 10px;font:inherit}
.btn:hover{background:#f0f4f8}
.toggle{font-size:12.5px;color:var(--dim);cursor:pointer}
.legend{display:flex;gap:10px;align-items:center;font-size:11.5px;color:var(--dim);flex-wrap:wrap}
.lg{padding:1px 6px;border-radius:4px}
.lg.cite{background:var(--cite-bg);color:var(--cite)}
.lg.fnmark-legend{background:#e2eef4;color:var(--fn)}
.lg.ep-legend{background:#fff;border:1px solid var(--line);color:var(--dim);display:inline-flex;gap:3px;align-items:center}
.lg.ep-legend .epk{font-weight:800;line-height:1}
.legend-note{font-style:italic}

.doctree-wrap{flex:1;overflow-y:auto;padding:14px 20px}
.empty-state{color:var(--dim);padding:40px;text-align:center}
.dt-doc-caption{font-weight:650;font-size:13px;color:var(--dim);margin-bottom:10px;
  padding-bottom:6px;border-bottom:1px solid var(--line)}

/* ---- section rows ---- */
.dt-node{margin:0}
.dt-row{display:flex;align-items:center;gap:8px;padding:5px 8px;cursor:pointer;
  border-radius:6px;margin-top:4px;border-left:4px solid var(--line)}
.dt-row:hover{background:#f0f4f8}
.dt-caret{width:12px;color:var(--dim);flex:0 0 12px}
.dt-label{font-weight:600;font-size:13px}
.dt-range{font-size:11px}
.dt-count{font-size:11px;color:var(--dim);background:#eef0ee;border-radius:8px;padding:0 6px}
.dt-statute{font-size:10.5px;color:#6a3d9a;background:#efe7f6;border-radius:4px;padding:0 5px}
.dt-ep{font-size:12px;font-weight:700}
.ep-willful_source,.pep.ep-willful_source{color:#a5341f}
.ep-liability_source,.pep.ep-liability_source{color:#2b5c8a}
.ep-damage_target,.pep.ep-damage_target{color:var(--award)}

/* purpose-label branch colors (left border) */
.p-intro{border-left-color:#8a8a8a}.p-proc{border-left-color:#b58900}
.p-facts{border-left-color:#268bd2}.p-issue{border-left-color:#6c71c4}
.p-juris{border-left-color:#2aa198}.p-law{border-left-color:#859900}
.p-infr{border-left-color:#d33682}.p-liab{border-left-color:#cb4b16}
.p-def{border-left-color:#b58900}.p-default{border-left-color:#93a1a1}
.p-dmg{border-left-color:#1f7a4d}.p-fees{border-left-color:#2d8a6a}
.p-order{border-left-color:#586e75}.p-supp{border-left-color:#c0c0b8}
.p-other{border-left-color:#d0d0c8}

/* ---- paragraphs ---- */
.dt-children{margin:2px 0 2px 22px;border-left:1px dotted var(--line);padding-left:10px}
.dt-par{display:flex;gap:8px;padding:4px 0;align-items:baseline;border-radius:4px}
.dt-par.par-flash{animation:parflash 1.6s ease-out}
@keyframes parflash{0%{background:#fff2b8}60%{background:#fff8dd}100%{background:transparent}}
.dt-pmark{color:var(--dim);font-size:11px;flex:0 0 auto;min-width:32px;font-variant-numeric:tabular-nums}
.dt-ptext{flex:1}
.dt-ptext.full{line-height:1.6}
.pstat{font-size:10px;color:#6a3d9a;background:#efe7f6;border-radius:4px;padding:0 4px;white-space:nowrap}
.pep{font-size:10px;font-weight:600;border-radius:4px;padding:0 5px;white-space:nowrap}
.pep.ep-willful_source{background:#fbe4e0}
.pep.ep-liability_source{background:#e6eef5}
.pep.ep-damage_target{background:#e2f0e8}

/* ---- inline citations + footnotes ---- */
/* base citation chip; the type class (below) overrides color/background */
.cite{background:var(--cite-bg);color:var(--cite);border-radius:3px;padding:0 2px;cursor:pointer;
  border-bottom:1px dotted var(--cite)}
.cite:hover{filter:brightness(0.94)}
.cite.ref-hit{background:var(--hit) !important;color:#3a2a10 !important;font-weight:600;
  border-bottom-color:#c99a00 !important}

/* citation TYPE color-coding — shared by inline chips and the sidebar swatches */
:root{
  --ct-statute:#1f6feb;   --ct-statute-bg:#e6effc;
  --ct-caselaw:#8a4b2b;   --ct-caselaw-bg:#f6e9df;
  --ct-treatise:#6a3d9a;  --ct-treatise-bg:#efe7f6;
  --ct-other:#586e75;     --ct-other-bg:#eceff0;
}
.cite.ct-statute{background:var(--ct-statute-bg);color:var(--ct-statute);border-bottom-color:var(--ct-statute)}
.cite.ct-caselaw{background:var(--ct-caselaw-bg);color:var(--ct-caselaw);border-bottom-color:var(--ct-caselaw)}
.cite.ct-treatise{background:var(--ct-treatise-bg);color:var(--ct-treatise);border-bottom-color:var(--ct-treatise)}
.cite.ct-other{background:var(--ct-other-bg);color:var(--ct-other);border-bottom-color:var(--ct-other)}
/* legend swatches */
.lg.ct-statute{background:var(--ct-statute-bg);color:var(--ct-statute)}
.lg.ct-caselaw{background:var(--ct-caselaw-bg);color:var(--ct-caselaw)}
.lg.ct-treatise{background:var(--ct-treatise-bg);color:var(--ct-treatise)}
.lg.ct-other{background:var(--ct-other-bg);color:var(--ct-other)}
/* sidebar citation-type groups */
.ref-group{margin:6px 0}
.ref-group-title{display:flex;align-items:center;gap:6px;font-size:11.5px;font-weight:650;margin:6px 0 3px}
.ref-swatch{width:10px;height:10px;border-radius:2px;display:inline-block}
.ref-swatch.ct-statute{background:var(--ct-statute)}
.ref-swatch.ct-caselaw{background:var(--ct-caselaw)}
.ref-swatch.ct-treatise{background:var(--ct-treatise)}
.ref-swatch.ct-other{background:var(--ct-other)}
.ref .ref-name.ct-statute{color:var(--ct-statute)}
.ref .ref-name.ct-caselaw{color:var(--ct-caselaw)}
.ref .ref-name.ct-treatise{color:var(--ct-treatise)}
.ref .ref-name.ct-other{color:var(--ct-other)}

/* award-provenance line under each remedy */
.aw-prov{font-size:11px;color:var(--dim);margin:1px 0 4px;padding-left:2px}
.aw-prov .aw-src{color:var(--accent);cursor:pointer;text-decoration:underline dotted}
.aw-prov.warn-src{color:#a5341f}
.aw-prov.warn-src .aw-src{color:#a5341f}
.fnmark{color:var(--fn);font-weight:700;cursor:help;margin-left:1px}
.fnmark:hover{text-decoration:underline}

/* ---- tooltip ---- */
.dt-tip{position:fixed;z-index:50;max-width:360px;background:#2b2b2e;color:#f4f4f2;
  border-radius:7px;padding:8px 10px;font-size:12px;line-height:1.4;pointer-events:none;
  box-shadow:0 4px 18px rgba(0,0,0,.28)}
.tip-title{font-weight:650;margin-bottom:3px}
.tip-body{color:#d5d5d0}
.tip-link{margin-top:4px;color:#8ec7ff}

/* entity click-outs (judge / work / willfulness views, open in new tab) */
.entity-link { color: inherit; text-decoration: none; border-bottom: 1px dotted currentColor; cursor: pointer; }
.entity-link:hover { text-decoration: none; border-bottom-style: solid; opacity: .85; }
a.ch-badge.wf.entity-link { border-bottom: 0; }
a.ch-badge.wf.entity-link:hover { filter: brightness(1.08); }
.ch-judge-name.entity-link { border-bottom: 1px dotted rgba(255,255,255,.5); }
.work-link { color: #7c3aed; }

/* back-to-landing link (combined-site nav) */
.sidebar-header .hgroup { display: flex; flex-direction: column; gap: 2px; }
.site-home { font-size: 11px; color: var(--dim); text-decoration: none; letter-spacing: .02em; }
.site-home:hover { color: var(--ink); text-decoration: underline; }