:root{--paper:#faf8f4;--ink:#1d1b18;--muted:#5c574f;--accent:#2f5a3a;--accent2:#b03028;--rule:#e2ddd3;--soft:#f0ece4;--serif:Georgia,"Iowan Old Style","Times New Roman",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:19px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
img{max-width:100%;display:block}
nav.top{position:sticky;top:0;z-index:1000;background:rgba(250,248,244,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--rule);display:flex;align-items:center;gap:20px;padding:12px 28px;font-family:var(--sans);font-size:14px}
nav.top .brand{font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}
nav.top .links{display:flex;gap:18px;overflow-x:auto;scrollbar-width:none}
nav.top .links a{color:var(--muted);text-decoration:none;white-space:nowrap}
nav.top .links a:hover,nav.top .links a.on{color:var(--accent)}
.hero{max-width:1120px;margin:0 auto;padding:64px 28px 24px;display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.hero .kicker{font-family:var(--sans);font-size:14px;font-weight:600;color:var(--accent);margin:0 0 10px}
.hero h1{font-size:52px;line-height:1.05;margin:0 0 16px;font-weight:700;letter-spacing:-.01em}
.hero .sub{font-size:21px;color:var(--muted);margin:0}
.hero .brief{grid-column:1/-1;background:var(--soft);border-left:4px solid var(--accent);padding:18px 24px;border-radius:2px}
.hero .brief ul{margin:6px 0 0;padding-left:20px}
.hero .brief li{margin:4px 0}
.h3,h3{font-size:22px;margin:28px 0 8px;color:var(--accent)}
.hero .h3{margin:0}
section{border-top:1px solid var(--rule)}
.sec-head{max-width:760px;margin:0 auto;padding:72px 28px 8px}
.sec-head h2{font-size:40px;line-height:1.1;margin:0 0 12px}
.lede{font-size:21px;color:var(--muted);margin:0}
.prose{max-width:760px;margin:0 auto;padding:8px 28px 72px}
.fig{margin:22px 0}
.fig.wide{margin:28px -60px}
.fig button.zoom{all:unset;cursor:zoom-in;display:block;width:100%}
.fig img{width:100%;border-radius:2px;background:#ddd}
figcaption{font-family:var(--sans);font-size:14px;color:var(--muted);line-height:1.45;margin-top:8px}
.credit{color:#8a847a}
figcaption,.credit{overflow-wrap:anywhere}
blockquote{margin:24px 0;padding:4px 0 4px 22px;border-left:3px solid var(--accent);font-style:italic;color:#2c2924}
blockquote cite{display:block;font-style:normal;font-family:var(--sans);font-size:14px;color:var(--muted);margin-top:8px}
.note{background:var(--soft);padding:16px 20px;margin:22px 0;border-radius:2px;font-size:17px}
.chip{display:inline-block;font-family:var(--sans);font-size:12px;font-weight:600;padding:3px 9px;border-radius:20px;margin-left:6px;vertical-align:2px;white-space:nowrap}
.st-proven{background:#e3eee5;color:#22492c}.st-likely{background:#f3ead6;color:#6d4f12}.st-family{background:#ebe5f1;color:#4d3a66}
/* journey */
.j-wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:0;max-width:1400px;margin:0 auto}
.j-map{position:sticky;top:49px;height:calc(100vh - 49px);border-right:1px solid var(--rule)}
#map{position:absolute;inset:0 0 56px 0;background:#e9e6df}
.map-ctl{position:absolute;left:0;right:0;bottom:0;height:56px;display:flex;align-items:center;justify-content:center;gap:12px;background:var(--paper);border-top:1px solid var(--rule);font-family:var(--sans);font-size:14px}
.map-ctl button{font:inherit;border:1px solid var(--rule);background:#fff;padding:7px 14px;border-radius:4px;cursor:pointer;color:var(--ink)}
.map-ctl button:hover{border-color:var(--accent);color:var(--accent)}
#where{color:var(--muted);min-width:60px;text-align:center}
.j-steps{padding:24px 0 40vh}
.step{padding:28px 36px 34px;margin:0 0 18vh;border-left:4px solid transparent;opacity:.45;transition:opacity .35s,border-color .35s}
.step.on{opacity:1;border-left-color:var(--accent)}
.step-head{display:flex;gap:14px;align-items:flex-start}
.step h3{margin:0;font-size:25px;color:var(--ink);line-height:1.2}
.num{flex:none;width:36px;height:36px;border-radius:50%;background:var(--accent2);color:#fff;font-family:var(--sans);font-weight:700;display:grid;place-items:center;font-size:16px;margin-top:2px}
.years{margin:2px 0 0;font-family:var(--sans);font-size:15px;color:var(--muted)}
.who{font-size:17px;margin:14px 0 8px}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin:14px 0 4px}
.thumbs .fig{margin:0}
.thumbs .fig img{aspect-ratio:4/3;object-fit:cover}
.thumbs figcaption{font-size:12.5px}
.pin{width:30px;height:30px;border-radius:50%;background:var(--accent2);color:#fff;border:3px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.4);display:grid;place-items:center;font:700 13px var(--sans);transition:transform .25s}
.pin.approx{background:#fff;color:var(--accent2);border:3px dashed var(--accent2)}
.pin.on{transform:scale(1.35);z-index:1000}
.leaflet-tooltip.lab{font:600 13px var(--sans);border:none;box-shadow:0 1px 4px rgba(0,0,0,.25)}
/* slider */
.slider{margin:28px -60px}
.slider .stage{position:relative;aspect-ratio:1/1;max-height:80vh;margin:0 auto;background:#ccc;overflow:hidden;border-radius:2px}
.slider .frame{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .5s}
.slider .frame.on{opacity:1}
.slider input{width:100%;margin:14px 0 4px;accent-color:var(--accent)}
.slider .ticks{display:flex;justify-content:space-between;font-family:var(--sans);font-size:14px}
.slider .tick{all:unset;cursor:pointer;color:var(--muted);padding:2px 4px}
.slider .tick.on{color:var(--accent);font-weight:700}
.slider .scap{font-family:var(--sans);font-size:14px;color:var(--muted);min-height:3em}
.grid{display:grid;gap:14px;margin:22px 0}
.grid.g2{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.grid.g3{grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1fr)}
.grid .fig{margin:0}.grid .fig img{aspect-ratio:4/3;object-fit:cover}
dl.facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule);border:1px solid var(--rule);margin:22px 0;font-family:var(--sans);font-size:15px}
dl.facts div{background:#fff;padding:12px 16px}
dl.facts dt{color:var(--muted);font-size:13px}dl.facts dd{margin:2px 0 0;font-weight:600}
ol.tl{list-style:none;padding:0;margin:22px 0;font-size:17px}
ol.tl li{display:grid;grid-template-columns:90px 1fr;gap:14px;padding:8px 0;border-bottom:1px solid var(--rule)}
ol.tl .y{font-family:var(--sans);font-weight:700;color:var(--accent)}
/* generations */
.gens{margin:22px 0}
details.gen{border:1px solid var(--rule);background:#fff;margin:0 0 10px;border-radius:3px}
details.gen summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:14px 18px}
details.gen summary::-webkit-details-marker{display:none}
.gn{flex:none;width:34px;height:34px;border-radius:50%;background:var(--soft);color:var(--accent);font:700 15px var(--sans);display:grid;place-items:center}
.gt{flex:1;display:flex;flex-direction:column;line-height:1.3}
.gt small{font-family:var(--sans);font-size:14px;color:var(--muted)}
details.gen[open] summary{border-bottom:1px solid var(--rule)}
.gbody{padding:6px 22px 18px;font-size:17.5px}
.how{font-family:var(--sans);font-size:14px;color:var(--muted)}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin:22px -60px}
.gallery .fig{margin:0}.gallery .fig img{aspect-ratio:1/1;object-fit:cover}
.gallery figcaption{font-size:13px}
.fig.doc img,.thumbs .fig.doc img,.grid .fig.doc img,.gallery .fig.doc img{object-fit:contain;background:#fff;border:1px solid var(--rule)}
ul.plain{padding-left:20px}ul.plain li{margin:8px 0}
footer{border-top:1px solid var(--rule);padding:40px 28px 60px;font-family:var(--sans);font-size:13px;color:var(--muted);max-width:900px;margin:0 auto;line-height:1.6}
/* lightbox */
dialog#lb{border:none;padding:0;background:transparent;max-width:96vw;max-height:96vh;overflow:visible}
dialog#lb::backdrop{background:rgba(15,13,10,.92)}
dialog#lb img{max-width:92vw;max-height:80vh;margin:0 auto;object-fit:contain}
dialog#lb .lbc{color:#e8e3d9;font-family:var(--sans);font-size:15px;max-width:900px;margin:12px auto 0;text-align:center}
dialog#lb button{position:fixed;background:rgba(255,255,255,.12);color:#fff;border:none;font-size:34px;width:52px;height:52px;border-radius:50%;cursor:pointer}
dialog#lb .x{top:16px;right:16px}.lbp{left:16px;top:50%}.lbn{right:16px;top:50%}
@media (max-width:900px){
 body{font-size:18px}
 nav.top{padding:10px 16px;gap:12px}
 .hero{grid-template-columns:1fr;padding:36px 18px 16px;gap:20px}.hero h1{font-size:38px}
 .sec-head{padding:52px 18px 6px}.sec-head h2{font-size:32px}.prose{padding:6px 18px 56px}
 .fig.wide,.slider,.gallery{margin-left:0;margin-right:0}
 .j-wrap{grid-template-columns:1fr}
 .j-map{top:45px;height:42vh;z-index:5;border-right:none;border-bottom:1px solid var(--rule)}
 #map{bottom:48px}.map-ctl{height:48px;gap:8px}.map-ctl button{padding:6px 10px}
 .step{padding:22px 18px 26px;margin-bottom:10vh}
 .j-steps{padding-bottom:30vh}
 .grid.g3{grid-template-columns:1fr 1fr}
 dl.facts{grid-template-columns:1fr}
 details.gen summary{flex-wrap:wrap;gap:10px 12px}
 .gt{min-width:calc(100% - 52px)}
 details.gen summary .chip{margin-left:46px}
}