:root{
  --ink:#2b2119;--soft:#6b5d4c;--faint:#8c7b65;--parch:#efe6d2;
  --panel:#f7f0df;--paper:#fbf6e9;--line:#c9b48f;--accent:#8a3324;--gold:#9c7a3c;
  --shadow:rgba(43,33,25,.16);
  font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  color:var(--ink);background:var(--parch)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-size:18px;line-height:1.55;background:var(--parch)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.18;z-index:-1;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='110' height='110' viewBox='0 0 110 110'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.14'/%3E%3C/svg%3E")}
a{color:inherit}
button{font:inherit;cursor:pointer;border:1px solid var(--line);background:transparent;color:var(--ink);padding:6px 11px;font-size:14px}
button:hover{border-color:var(--accent)}
button[aria-pressed=true]{background:var(--ink);color:var(--panel);border-color:var(--ink)}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
[hidden]{display:none!important}
.skip{position:absolute;left:20px;top:-100px;background:var(--panel);padding:10px;z-index:10}
.skip:focus{top:10px}
.page-head,main,footer{max-width:1040px;margin:auto;padding-left:36px;padding-right:36px}
nav.top{display:flex;justify-content:space-between;gap:24px;padding:25px 0;border-bottom:1px solid var(--line);font-size:16px}
nav.top a{text-decoration:none}
nav.top a:hover{text-decoration:underline;text-underline-offset:4px}
.title-block{position:relative;max-width:900px;padding:54px 0 34px}
.folio{margin:0 0 5px;color:var(--accent);font-size:15px;font-variant:small-caps;letter-spacing:.09em}
h1{font-family:Optima,"Iowan Old Style",Georgia,serif;font-size:clamp(50px,9vw,96px);font-weight:400;letter-spacing:-.045em;line-height:.94;margin:0 0 18px}
.intro{font-size:clamp(22px,3vw,29px);margin:0 0 10px}
.guide{color:var(--soft);max-width:700px;margin:0 0 21px;font-size:18px}
.collection-note{display:inline-block;margin:0;padding-top:12px;border-top:1px solid var(--line);color:var(--faint);font-size:15px}

/* ---- century strip ---- */
.strip-wrap{background:var(--panel);border:1px solid var(--line);box-shadow:0 8px 24px rgba(91,69,42,.07);padding:18px 22px 14px;margin-top:8px}
.strip-wrap>p{margin:0 0 8px;font-size:14px;color:var(--soft)}
.strip{display:block;width:100%;height:auto;overflow:visible}
.strip .bar{fill:var(--ink);fill-opacity:.55}
.strip .bar.rome{fill:var(--accent);fill-opacity:.85}
.strip .bar:hover,.strip .bar.current{fill-opacity:1}
.strip .hit{fill:transparent;cursor:pointer}
.strip .base{stroke:var(--line);stroke-width:1}
.strip text{font-family:inherit;font-size:11px;fill:var(--faint)}
.strip .cursor{stroke:var(--accent);stroke-width:1.5;pointer-events:none}
.strip-key{display:flex;gap:18px;flex-wrap:wrap;margin:8px 0 0;font-size:13px;color:var(--faint)}
.strip-key span::before{content:"";display:inline-block;width:10px;height:10px;margin-right:6px;vertical-align:-1px;background:var(--ink);opacity:.55}
.strip-key span.rome::before{background:var(--accent);opacity:.85}
.strip-tip{position:fixed;z-index:5;pointer-events:none;background:var(--ink);color:var(--paper);font-size:13px;padding:5px 9px;white-space:nowrap;transform:translate(-50%,-125%)}

/* ---- filters ---- */
.filters{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin:26px 0 0}
.filters>span{color:var(--soft);font-size:14px;margin-right:6px}
#result-count{color:var(--soft);font-size:15px;margin:14px 0 0;text-align:right}

/* ---- timeline ---- */
.era{margin-top:56px}
.era-head{border-top:2px solid var(--ink);padding:16px 0 10px;display:flex;align-items:baseline;justify-content:space-between;gap:24px}
.era-head h2{font-weight:400;font-size:clamp(28px,4vw,40px);line-height:1.05;margin:0}
.era-head h2 small{display:block;font-size:14px;color:var(--accent);font-variant:small-caps;letter-spacing:.09em;margin-bottom:4px}
.era-head>span{color:var(--faint);font-size:14px;white-space:nowrap}
.era>p.lede{color:var(--soft);max-width:66ch;margin:0 0 18px;font-size:17px}
.events{list-style:none;margin:0;padding:0;position:relative}
.events::before{content:"";position:absolute;left:148px;top:0;bottom:0;border-left:1px solid var(--line)}
.ev{display:grid;grid-template-columns:120px 56px 1fr;gap:0;padding:11px 0;position:relative}
.ev time{text-align:right;color:var(--soft);font-size:15px;padding-top:4px;white-space:nowrap;font-variant-numeric:tabular-nums}
.ev .dot{position:relative}
.ev .dot::before{content:"";position:absolute;left:24px;top:11px;width:9px;height:9px;border-radius:50%;background:var(--parch);border:1.5px solid var(--soft);transform:translateX(-50%)}
.ev.major .dot::before{width:13px;height:13px;top:9px;background:var(--accent);border-color:var(--accent)}
.ev .body{min-width:0;display:flex;gap:18px;align-items:flex-start}
.ev h3{font-weight:400;font-size:19px;line-height:1.3;margin:0 0 3px}
.ev.major h3{font-size:24px;line-height:1.2;font-family:Optima,"Iowan Old Style",Georgia,serif;letter-spacing:-.01em}
.ev p{margin:0;color:var(--soft);font-size:15.5px;line-height:1.5;max-width:60ch}
.ev p a{color:var(--ink);text-underline-offset:3px;text-decoration-thickness:1px}
.ev .txt{flex:1;min-width:0}
.ev .who{flex:none;text-decoration:none;text-align:center;width:72px;font-size:12px;color:var(--faint);line-height:1.2}
.ev .who img{display:block;width:64px;height:64px;border-radius:50%;object-fit:cover;margin:0 auto 4px;box-shadow:0 2px 8px var(--shadow);border:1px solid var(--line)}
.ev .who:hover img{box-shadow:0 0 0 2px var(--accent)}
.ev .tag{display:inline-block;margin-left:8px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);vertical-align:2px}
.ev.rome .tag{color:var(--accent)}
#empty{padding:50px 0;text-align:center}
#empty h2{font-weight:400}
footer{margin:70px auto 0;padding-top:24px;padding-bottom:32px;border-top:1px solid var(--line);font-size:16px}
footer p{color:var(--soft);max-width:70ch}
.topline{position:fixed;left:0;top:0;height:3px;background:var(--accent);width:0;z-index:20}
@media(max-width:700px){
  .page-head,main,footer{padding-left:18px;padding-right:18px}
  nav.top{font-size:14px;gap:12px}
  .title-block{padding:36px 0 26px}
  .events::before{left:12px}
  .ev{grid-template-columns:1fr;padding:12px 0 12px 34px}
  .ev time{text-align:left;padding-top:0;font-size:14px}
  .ev .dot{position:absolute;left:0;top:14px}
  .ev .dot::before{left:12px;top:4px}
  .ev.major .dot::before{top:2px}
  .ev .who{width:56px}.ev .who img{width:48px;height:48px}
  .strip-wrap{padding:14px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}