/* ============ TOKENS ============ */
:root{
  /* clean cool-neutral grays (Wikipedia family) biased toward the deep-blue accent — no purple */
  --bg:#ffffff;
  --surface:#f8f9fa;
  --surface-2:#eaecf0;
  --ink:#101418;
  --muted:#54595d;
  --faint:#72777d;
  --border:#e4e7eb;
  --border-strong:#c8ccd1;
  --accent:#0f4c81;
  --accent-hover:#0b3a63;
  --link:#12508f;
  --accent-soft:#e7eff7;
  --accent-ink:#ffffff;
  --gold:#8a6d1f;
  --gold-soft:#f3ecd8;
  --shadow-sm:0 1px 2px rgba(16,20,24,.05);
  --shadow:0 1px 2px rgba(16,20,24,.05), 0 6px 20px rgba(16,20,24,.08);
  --shadow-lg:0 2px 6px rgba(16,20,24,.06), 0 18px 44px rgba(16,20,24,.12);
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:"Charter","Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --measure:66ch;
  --radius:14px;
  --radius-sm:10px;
}

/* connection/timeline kind colors */
:root{
  --k-family:var(--gold);--k-mentor:var(--accent);--k-collaborator:#2b7d78;
  --k-rival:#b4532a;--k-influence:#5a6a86;--k-contemporary:var(--faint);
}

/* ============ BASE ============ */
*{box-sizing:border-box}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
img{max-width:100%}
h1,h2,h3{text-wrap:balance;line-height:1.18;letter-spacing:-.01em}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ TOP BAR ============ */
header.top{
  position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--border);
}
.topbar{display:flex;align-items:center;gap:22px;height:62px}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.brand em{font-style:normal;color:var(--accent)}
nav.mainnav{display:flex;gap:20px;margin-left:6px}
nav.mainnav a{color:var(--muted);font-size:14.5px;font-weight:500}
nav.mainnav a:hover{color:var(--ink);text-decoration:none}
nav.mainnav a.active{color:var(--ink)}
.search{margin-left:auto;position:relative;display:flex;align-items:center}
.search input{
  width:210px;height:38px;border:1px solid var(--border-strong);background:var(--surface);
  border-radius:999px;padding:0 14px 0 36px;color:var(--ink);font-size:14px;font-family:var(--sans);
  transition:width .18s ease,border-color .18s ease;
}
.search input::placeholder{color:var(--faint)}
.search input:focus{width:250px;outline:none;border-color:var(--accent)}
.search svg{position:absolute;left:12px;color:var(--faint);pointer-events:none}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--border-strong);
  background:var(--surface);border-radius:10px;color:var(--muted);cursor:pointer;transition:.15s;
}
.icon-btn:hover{color:var(--ink);border-color:var(--accent)}
.btn-accent{
  height:38px;padding:0 16px;border-radius:10px;border:0;background:var(--accent);color:var(--accent-ink);
  font-weight:600;font-size:14px;font-family:var(--sans);cursor:pointer;display:inline-flex;align-items:center;gap:7px;
  transition:background .15s,transform .05s;white-space:nowrap;text-decoration:none;
}
.btn-accent:hover{background:var(--accent-hover);text-decoration:none;color:var(--accent-ink)}
.btn-accent:active{transform:translateY(1px)}

/* ============ HERO (person page) ============ */
.cover{
  height:200px;margin-top:0;position:relative;overflow:hidden;
  background:
    radial-gradient(120% 160% at 15% 0%, var(--accent-soft) 0%, transparent 55%),
    radial-gradient(120% 160% at 90% 20%, color-mix(in srgb,var(--gold-soft) 80%,transparent) 0%, transparent 50%),
    var(--surface-2);
  border-bottom:1px solid var(--border);
}
.cover::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(var(--border-strong) 1px, transparent 1px);
  background-size:22px 22px;-webkit-mask-image:linear-gradient(transparent,#000 90%);mask-image:linear-gradient(transparent,#000 90%);
}
.hero{position:relative;margin-top:-96px}
.hero-inner{display:flex;gap:26px;align-items:flex-end}
.portrait{
  flex:none;width:168px;height:168px;border-radius:22px;overflow:hidden;position:relative;
  border:4px solid var(--bg);box-shadow:var(--shadow-lg);
  background:linear-gradient(150deg,#0f2438,#1f4d75 55%,#2f6ea3);
  display:grid;place-items:center;
}
.portrait img{width:100%;height:100%;object-fit:cover}
.portrait span{font-family:var(--serif);font-size:66px;color:#fff;opacity:.9;letter-spacing:.02em}
.portrait .ph{position:absolute;bottom:7px;right:9px;font-size:10px;color:rgba(255,255,255,.7);font-family:var(--sans);letter-spacing:.03em}
.hero-meta{padding-bottom:8px;min-width:0}
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.eyebrow .chip{background:var(--accent-soft);color:var(--accent);padding:3px 9px;border-radius:999px;letter-spacing:.03em}
.eyebrow .chip:hover{text-decoration:none}
h1.name{font-family:var(--serif);font-size:clamp(2.2rem,4.6vw,3.25rem);font-weight:700;margin:0;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.verified{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-ink);flex:none;box-shadow:0 0 0 4px var(--accent-soft)}
.tagline{font-size:18px;color:var(--muted);margin:10px 0 0;max-width:60ch}

/* ============ HERO STAT TILES ============ */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0 6px}
.stat{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;
  display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow-sm);
}
.stat .lbl{font-size:11.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--faint);display:flex;align-items:center;gap:6px}
.stat .val{font-size:19px;font-weight:650;color:var(--ink);font-variant-numeric:tabular-nums}
.stat .sub{font-size:12.5px;color:var(--muted)}
.stat.fame .val{color:var(--accent)}
.stat .rank{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;color:var(--gold);background:var(--gold-soft);padding:2px 8px;border-radius:999px;width:max-content;margin-top:3px}

/* ============ LAYOUT GRID ============ */
.layout{display:grid;grid-template-columns:196px minmax(0,1fr) 312px;gap:40px;margin:38px 0 60px;align-items:start}

/* --- left TOC --- */
.toc{position:sticky;top:86px;font-size:14px}
.toc .ttl{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-bottom:12px}
.toc a{display:block;color:var(--muted);padding:6px 0 6px 14px;border-left:2px solid var(--border);line-height:1.35;transition:.15s}
.toc a:hover{color:var(--ink);text-decoration:none;border-color:var(--border-strong)}
.toc a.active{color:var(--accent);border-color:var(--accent);font-weight:600}

/* --- article --- */
article{max-width:var(--measure);font-size:17.5px}
article .lead{font-size:20px;line-height:1.55;color:var(--ink)}
article h2{font-size:1.55rem;margin:2.4em 0 .6em;padding-top:.2em;font-weight:700}
article h2:first-of-type{margin-top:.3em}
article h3{font-size:1.16rem;margin:1.8em 0 .4em;color:var(--ink)}
article p{margin:0 0 1.15em}
article .sec{scroll-margin-top:84px}
sup.cite a{color:var(--accent);font-weight:600;font-size:.7em;padding:0 1px;cursor:pointer}
.pull{border-left:3px solid var(--accent);background:var(--accent-soft);padding:14px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:1.6em 0;font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--ink)}
.inline-fig{margin:1.7em 0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.inline-fig .img{height:190px;background:linear-gradient(135deg,var(--surface-2),var(--accent-soft));display:grid;place-items:center;color:var(--faint);font-size:13px;letter-spacing:.03em}
.inline-fig img{display:block;width:100%;height:auto}
.inline-fig figcaption{padding:10px 14px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--border)}

/* --- right rail --- */
.rail{position:sticky;top:86px;display:flex;flex-direction:column;gap:18px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card-h{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.card-h .t{font-size:13px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.facts{padding:6px 18px 14px}
.fact{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--border)}
.fact:last-child{border-bottom:0}
.fact .fi{flex:none;width:30px;height:30px;border-radius:9px;background:var(--surface-2);display:grid;place-items:center;color:var(--accent)}
.fact .fc{min-width:0}
.fact .fl{font-size:11.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--faint)}
.fact .fv{font-size:15px;color:var(--ink);line-height:1.35}
.fact .fv a{font-weight:500}
.socials{display:flex;gap:8px;padding:14px 18px;border-top:1px solid var(--border);flex-wrap:wrap}
.socials a{width:34px;height:34px;border-radius:9px;border:1px solid var(--border);display:grid;place-items:center;color:var(--muted);background:var(--bg);font-weight:600;font-size:14px}
.socials a:hover{color:var(--accent);border-color:var(--accent);text-decoration:none}

.claim{background:linear-gradient(160deg,var(--accent-soft),var(--surface));border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.claim .ct{font-family:var(--serif);font-size:19px;font-weight:700;margin:0 0 4px}
.claim p{margin:0 0 14px;font-size:14px;color:var(--muted);line-height:1.5}
.claim .btn-accent{width:100%;justify-content:center}
.claim .note{font-size:12px;color:var(--faint);margin:10px 0 0;text-align:center}

/* ============ REFERENCES ============ */
.refs{max-width:var(--measure);margin:10px 0 0}
.refs h2{font-size:1.35rem;margin:0 0 .5em}
.refs ol{padding-left:22px;margin:0;color:var(--muted);font-size:14.5px;line-height:1.6}
.refs li{margin:0 0 8px;padding-left:4px;scroll-margin-top:84px}
.refs li::marker{color:var(--accent);font-weight:600}

/* ============ RELATED / PEOPLE CARDS ============ */
.related{border-top:1px solid var(--border);padding:44px 0 0;margin-top:48px}
.related h2{font-family:var(--serif);font-size:1.7rem;margin:0 0 4px}
.related .subt{color:var(--muted);margin:0 0 24px}
.people{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;display:block;color:inherit}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--border-strong);text-decoration:none}
.pav{width:64px;height:64px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;font-family:var(--serif);font-size:26px;color:#fff;overflow:hidden}
.pav img{width:100%;height:100%;object-fit:cover}
.pcard .pn{font-weight:650;font-size:15.5px;display:flex;align-items:center;justify-content:center;gap:5px;color:var(--ink)}
.pcard .pn svg{color:var(--accent)}
.pcard .pr{font-size:13px;color:var(--muted);margin-top:2px}
.pcard .pf{margin-top:9px;font-size:11.5px;color:var(--gold);background:var(--gold-soft);display:inline-block;padding:2px 9px;border-radius:999px;font-weight:600}

/* ============ HOMEPAGE / LISTING ============ */
.page-hero{padding:52px 0 30px;text-align:center}
.page-hero h1{font-family:var(--serif);font-size:clamp(2.1rem,4.4vw,3rem);font-weight:700;margin:0 0 12px}
.page-hero p{font-size:19px;color:var(--muted);max-width:60ch;margin:0 auto}
.page-hero .bigsearch{margin:26px auto 0;max-width:520px;position:relative;display:flex;align-items:center}
.page-hero .bigsearch input{width:100%;height:52px;border:1px solid var(--border-strong);background:var(--surface);border-radius:999px;padding:0 20px 0 48px;color:var(--ink);font-size:16px;font-family:var(--sans)}
.page-hero .bigsearch input:focus{outline:none;border-color:var(--accent)}
.page-hero .bigsearch svg{position:absolute;left:18px;color:var(--faint);pointer-events:none}

.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:40px 0 18px}
.section-head h2{font-family:var(--serif);font-size:1.6rem;font-weight:700;margin:0}
.section-head a{font-size:14px;font-weight:600}

.chips{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 8px}
.chip-link{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid var(--border);background:var(--surface);border-radius:999px;color:var(--muted);font-size:14px;font-weight:500}
.chip-link:hover{color:var(--ink);border-color:var(--border-strong);text-decoration:none}
.chip-link.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.chip-link .n{color:var(--faint);font-variant-numeric:tabular-nums;font-size:12.5px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;margin:0 0 8px}

.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin:26px 0 0;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb .cur{color:var(--ink)}

.pagination{display:flex;gap:8px;justify-content:center;margin:34px 0 10px}
.pagination a,.pagination span{min-width:38px;height:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:9px;color:var(--muted);font-size:14px;font-weight:600;background:var(--surface)}
.pagination a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
.pagination .cur{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}

.empty{text-align:center;padding:64px 0;color:var(--muted)}
.empty h2{font-family:var(--serif);color:var(--ink);margin:0 0 8px}

/* ============ LIFE TIMELINE ============ */
.timeline-sec{border-top:1px solid var(--border);padding:38px 0 0;margin-top:44px}
.timeline-sec>h2{font-family:var(--serif);font-size:1.7rem;margin:0 0 24px}
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{content:"";position:absolute;left:83px;top:8px;bottom:10px;width:2px;background:var(--border)}
.tl-item{position:relative;display:grid;grid-template-columns:70px 1fr;gap:30px;padding:0 0 22px}
.tl-item:last-child{padding-bottom:0}
.tl-year{text-align:right;font-variant-numeric:tabular-nums;font-weight:700;color:var(--accent);font-size:15px;padding-top:1px}
.tl-dot{position:absolute;left:77px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--bg);box-shadow:0 0 0 1px var(--border-strong)}
.tl-birth .tl-dot{background:var(--accent)}
.tl-education .tl-dot{background:var(--k-collaborator)}
.tl-work .tl-dot{background:var(--accent)}
.tl-award .tl-dot{background:var(--gold)}
.tl-move .tl-dot{background:var(--k-influence)}
.tl-death .tl-dot{background:var(--k-rival)}
.tl-title{font-weight:650;color:var(--ink)}
.tl-desc{color:var(--muted);font-size:15px;margin-top:2px;line-height:1.5}

/* ============ CONNECTION GRAPH ============ */
.conn-sec{border-top:1px solid var(--border);padding:38px 0 0;margin-top:44px}
.conn-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:14px}
.conn-head h2{font-family:var(--serif);font-size:1.7rem;margin:0}
.conn-head .subt{color:var(--muted);margin:2px 0 0}
.legend{display:flex;gap:14px;flex-wrap:wrap}
.legend .lg{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--muted)}
.legend .lg i{width:11px;height:11px;border-radius:50%;display:inline-block}
.lg-family i{background:var(--k-family)}
.lg-mentor i{background:var(--k-mentor)}
.lg-collaborator i{background:var(--k-collaborator)}
.lg-rival i{background:var(--k-rival)}
.lg-influence i{background:var(--k-influence)}
.lg-contemporary i{background:var(--k-contemporary)}
.graphwrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:6px;box-shadow:var(--shadow-sm)}
.graph{width:100%;height:auto;display:block;max-height:480px}
.graph .edge{stroke:var(--border-strong);stroke-width:1.5;transition:stroke-width .15s}
.graph .conn-family .edge{stroke:var(--k-family)}
.graph .conn-mentor .edge{stroke:var(--k-mentor)}
.graph .conn-collaborator .edge{stroke:var(--k-collaborator)}
.graph .conn-rival .edge{stroke:var(--k-rival)}
.graph .conn-influence .edge{stroke:var(--k-influence)}
.graph .conn-contemporary .edge{stroke:var(--k-contemporary)}
.graph .node-c{fill:var(--surface-2);stroke:var(--border-strong);stroke-width:2;transition:stroke-width .15s}
.graph .conn-family .node-c{stroke:var(--k-family)}
.graph .conn-mentor .node-c{stroke:var(--k-mentor)}
.graph .conn-collaborator .node-c{stroke:var(--k-collaborator)}
.graph .conn-rival .node-c{stroke:var(--k-rival)}
.graph .conn-influence .node-c{stroke:var(--k-influence)}
.graph .conn-contemporary .node-c{stroke:var(--k-contemporary)}
.graph .node-in{fill:var(--ink);font-family:var(--serif);font-size:17px;font-weight:700;text-anchor:middle;dominant-baseline:middle}
.graph .node-t{fill:var(--muted);font-size:13px;text-anchor:middle;font-family:var(--sans)}
.graph .cnode{cursor:pointer}
.graph a.cnode:hover .node-c{stroke-width:4}
.graph a.cnode:hover .node-t{fill:var(--ink);text-decoration:none}
.graph .conn:hover .edge{stroke-width:3.2}
.graph .center-c{fill:var(--accent)}
.graph .center-t{fill:var(--accent-ink);font-family:var(--serif);font-size:23px;font-weight:700;text-anchor:middle;dominant-baseline:middle}
@media (max-width:620px){
  .tl-item{grid-template-columns:52px 1fr;gap:22px}
  .timeline::before{left:65px}
  .tl-dot{left:59px}
}

/* ============ FOOTER ============ */
footer{border-top:1px solid var(--border);background:var(--surface);margin-top:56px;padding:34px 0;color:var(--muted);font-size:14px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot .brand{font-size:18px}

/* citation tooltip */
#tip{position:fixed;z-index:100;max-width:280px;background:var(--ink);color:var(--bg);font-size:12.5px;line-height:1.45;padding:9px 12px;border-radius:9px;box-shadow:var(--shadow-lg);opacity:0;transform:translateY(4px);pointer-events:none;transition:opacity .12s,transform .12s}
#tip.on{opacity:1;transform:translateY(0)}

/* ============ RESPONSIVE ============ */
@media (max-width:1000px){
  .layout{grid-template-columns:1fr;gap:26px}
  .toc{display:none}
  .rail{position:static;flex-direction:column}
  article{max-width:none}
  .people{grid-template-columns:repeat(2,1fr)}
  nav.mainnav{display:none}
}
@media (max-width:620px){
  .wrap{padding:0 16px}
  .hero-inner{flex-direction:column;align-items:flex-start;gap:16px}
  .hero{margin-top:-70px}
  .portrait{width:128px;height:128px}
  .portrait span{font-size:50px}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .search input{width:150px}
  .search input:focus{width:170px}
  .people{grid-template-columns:1fr}
  .btn-accent .lbltxt{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}