:root{--bg:#ebe4d7;--paper:#f6f1e7;--ink:#1d1915;--mute:#665d52;--line:#cdc2b0;--line-soft:#ddd3c3;--acc:#a9481f;--acc2:#1f6684;--gold:#94631a;--band:rgba(169,72,31,.09);--night:#07090d;
--serif:'Source Serif 4',Georgia,serif;--disp:'EB Garamond','Source Serif 4',Georgia,serif;--sans:'IBM Plex Sans',system-ui,sans-serif;--topbar:44px;--vh:1vh;color-scheme:light}
html.dark{--bg:#0f0d0b;--paper:#181512;--ink:#ece4d6;--mute:#a99d8c;--line:#3b342c;--line-soft:#2b2621;--acc:#f08a52;--acc2:#82c6df;--gold:#e5b366;--band:rgba(240,138,82,.1);color-scheme:dark}
*{box-sizing:border-box}
html{scroll-padding-top:calc(var(--topbar) + 12px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 18px/1.62 var(--serif);-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility}
a{color:var(--acc)}a:hover{text-decoration-thickness:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--paper);padding:.5rem 1rem;z-index:100}.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.nw{white-space:nowrap}
[hidden]{display:none!important}

/* topbar */
.topbar{position:sticky;top:0;z-index:40;height:var(--topbar);display:flex;align-items:center;gap:.9rem;padding:0 max(14px,env(safe-area-inset-left));background:var(--bg);border-bottom:1px solid var(--line-soft);font:500 14px/1 var(--sans)}
.topbar .home{display:flex;align-items:center;gap:.45rem;color:var(--ink);text-decoration:none;font-weight:600;letter-spacing:.01em}
.motif{width:20px;height:20px;color:var(--acc)}
.topnav{display:flex;gap:1rem;overflow:auto;scrollbar-width:none}.topnav a{color:var(--mute);text-decoration:none;white-space:nowrap}.topnav a:hover{color:var(--ink)}
.spacer{flex:1}
.chip{border:1px solid var(--line);border-radius:99px;padding:.3rem .65rem;color:var(--ink);text-decoration:none;font-size:13px}
.icon-btn{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:50%;background:transparent;color:var(--ink);cursor:pointer}
.i-sun{display:none}html.dark .i-moon{display:none}html.dark .i-sun{display:inline}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px}.progress i{display:block;height:100%;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--acc)}
@media (max-width:820px){.topnav{display:none}}

/* rail */
.rail{position:fixed;right:10px;top:50%;transform:translateY(-50%);z-index:30;display:flex;flex-direction:column;gap:12px;opacity:0;transition:opacity .4s}
.rail.on{opacity:1}
.rail-dot{position:relative;display:block;width:12px;height:12px}
.rail-dot .dot{position:absolute;inset:3px;border-radius:50%;background:rgba(236,228,214,.35);transition:transform .2s,background .2s}
.rail-dot[aria-current] .dot{background:#f0b46a;transform:scale(1.5)}
.rail-label{position:absolute;right:20px;top:50%;transform:translateY(-50%);white-space:nowrap;font:500 12px/1 var(--sans);color:#efe6d8;background:rgba(10,9,12,.85);padding:.3rem .5rem;border-radius:4px;opacity:0;pointer-events:none;transition:opacity .15s}
.rail-dot:hover .rail-label,.rail-dot:focus-visible .rail-label{opacity:1}
@media (max-width:1100px){.rail{display:none}}

/* story: stage + steps */
.story{position:relative;display:grid;grid-template-columns:minmax(23rem,34rem) 1fr}
.stage{grid-column:2;grid-row:1;position:sticky;top:var(--topbar);height:calc(var(--vh) * 100 - var(--topbar));margin:0;background:var(--night);overflow:hidden;touch-action:pan-y}
.steps{grid-column:1;grid-row:1;position:relative;z-index:2;padding:0 0 30vh}
#map{display:block;width:100%;height:100%;cursor:crosshair}
.still{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;pointer-events:none}
.nojs .still,.stage.noc .still{opacity:1}
.step{min-height:calc(var(--vh) * 92);padding:6vh 1.6rem 4vh 2rem;display:flex;align-items:center}
.step .card{width:100%}
.intro{min-height:calc(var(--vh) * 100 - var(--topbar));padding-top:4vh}
.kicker{font:600 12.5px/1.3 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--acc);margin:0 0 .9rem}
h1{font:500 clamp(2rem,2.6vw + 1rem,2.9rem)/1.08 var(--disp);letter-spacing:-.005em;margin:0 0 1.1rem}
.deck{font-size:1.06rem;color:var(--ink);margin:0 0 1.4rem}
h2{font:500 1.75rem/1.15 var(--disp);margin:0 0 .9rem;position:relative}
h2 .anchor{position:absolute;left:-1.1rem;color:var(--line);text-decoration:none;font:400 1rem var(--sans);top:.45rem;opacity:0}h2:hover .anchor{opacity:1}
h3{font:600 1.18rem/1.25 var(--disp);margin:1.8rem 0 .6rem}
p{margin:0 0 1rem}
.hint{font:500 13px var(--sans);color:var(--mute);margin-top:1.4rem}
.picked{font:600 1.05rem/1.4 var(--sans);color:var(--acc);border-left:3px solid var(--acc);padding:.2rem 0 .2rem .8rem}

/* search + result */
.search label{display:block;font:600 13px var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin-bottom:.35rem}
.sbox{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
#q{flex:1 1 14rem;min-width:0;font:500 1rem var(--sans);padding:.7rem .85rem;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}
#q:focus{border-color:var(--acc);outline:none;box-shadow:0 0 0 3px var(--band)}
.clear,.more,.whole{font:500 14px var(--sans);border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:99px;padding:.5rem .9rem;cursor:pointer;min-height:40px}
.clear:hover,.more:hover{border-color:var(--acc)}
#qlist{list-style:none;margin:.3rem 0 0;padding:.25rem;border:1px solid var(--line);border-radius:8px;background:var(--paper);max-height:16rem;overflow:auto;font:400 15px/1.3 var(--sans);position:relative;z-index:5}
#qlist li{padding:.5rem .6rem;border-radius:5px;cursor:pointer;display:flex;justify-content:space-between;gap:1rem}
#qlist li[aria-selected="true"],#qlist li:hover{background:var(--band)}
#qlist li small{color:var(--mute)}
.shint{font:400 13.5px/1.4 var(--sans);color:var(--mute);margin:.45rem 0 0}
.result{margin:1.2rem 0 .6rem;padding:1rem 1.1rem;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
.result h3{margin:0 0 .2rem;font-size:1.25rem}
.result .rsub{font:400 14px/1.45 var(--sans);color:var(--mute);margin:0 0 .6rem}
.result .rdate{font:500 2.6rem/1 var(--disp);color:var(--acc);margin:.2rem 0 .3rem}
.result .rreign{font:500 14px var(--sans);margin:0 0 .6rem}
.result .rnote{font:400 14.5px/1.5 var(--sans);color:var(--mute);margin:.6rem 0 0}
.result .clear{margin-top:.6rem}
.latin{font-family:var(--disp);font-size:1rem;letter-spacing:.04em;font-variant:small-caps;line-height:1.45;color:var(--ink)}
.tr{font-style:italic}

/* share row */
.share-row{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;margin:1rem 0 .2rem}
.share-row .lbl{font:500 13px var(--sans);color:var(--mute);margin-right:.2rem}
.sh{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line-soft);border-radius:50%;background:transparent;color:var(--ink);cursor:pointer}
.sh svg{width:18px;height:18px}.sh:hover,.sh:focus-visible{color:var(--acc);border-color:var(--acc)}
@media (pointer:coarse){.sh{width:44px;height:44px}}
.status{font:400 13px var(--sans);color:var(--mute);min-height:1.2em;margin:0}

/* stage HUD */
.hud{position:absolute;left:16px;bottom:16px;right:16px;display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap;pointer-events:none;color:#efe6d8;font-family:var(--sans)}
.hud>*{pointer-events:auto}
.clock{display:flex;flex-direction:column;line-height:1}
.ylab{font:600 11px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:#bfb2a0}
#year{font:500 4rem/0.95 var(--disp);color:#ffd9a0;font-variant-numeric:lining-nums tabular-nums;min-width:3.2ch;text-shadow:0 0 18px rgba(255,170,90,.35)}
.ctrl{display:flex;align-items:center;gap:10px;background:rgba(8,8,11,.6);padding:6px 10px;border-radius:99px;border:1px solid rgba(255,255,255,.08)}
.play{display:flex;align-items:center;gap:.45rem;border:1px solid rgba(255,220,170,.35);background:transparent;color:#ffe2b8;border-radius:99px;padding:.4rem .8rem;font:500 13px var(--sans);cursor:pointer;min-height:36px}
.play .ic{width:0;height:0;border-left:9px solid currentColor;border-top:6px solid transparent;border-bottom:6px solid transparent}
.play[data-on="1"] .ic{width:9px;height:11px;border:0;border-left:3px solid currentColor;border-right:3px solid currentColor}
#yr{width:min(32vw,360px);accent-color:#f0a35e;display:block}
.yrwrap{position:relative;display:block}
.wmark{position:absolute;top:-18px;transform:translateX(-50%);font:500 10.5px var(--sans);color:#f3a476;white-space:nowrap;pointer-events:none}
.wmark::after{content:'';position:absolute;left:50%;top:14px;width:1px;height:16px;background:#f3a476;opacity:.8}
.seg{display:flex;background:rgba(8,8,11,.6);border:1px solid rgba(255,255,255,.1);border-radius:99px;padding:3px}
.seg button{font:500 12.5px var(--sans);border:0;background:transparent;color:#cdbfad;padding:.42rem .75rem;border-radius:99px;cursor:pointer;min-height:34px}
.seg button[aria-pressed="true"]{background:rgba(255,200,140,.18);color:#ffe2b8}
.legend{position:absolute;right:16px;top:14px;margin:0;font:400 12px var(--sans);color:#cdbfad;display:flex;gap:.45rem;align-items:center;background:rgba(8,8,11,.5);padding:.35rem .6rem;border-radius:99px}
.legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-left:.4rem}
.lg-light{background:radial-gradient(#fff3d6,#ffb35c 55%,transparent 72%);box-shadow:0 0 8px #ffb35c}
.lg-after{background:#8fd6ee;border-radius:2px!important;transform:rotate(45deg) scale(.8)}
.whole{position:absolute;right:16px;top:52px;background:rgba(8,8,11,.75);color:#ffe2b8;border-color:rgba(255,220,170,.35)}
.darklab{position:absolute;margin:0;font:600 12px var(--sans);letter-spacing:.08em;text-transform:uppercase;color:#f3a476;pointer-events:none;transform:translate(-50%,-50%);text-shadow:0 1px 6px #000;white-space:nowrap}
.tip{position:absolute;pointer-events:none;background:rgba(12,11,14,.94);color:#efe6d8;font:400 13px/1.35 var(--sans);padding:.45rem .6rem;border-radius:6px;border:1px solid rgba(255,255,255,.12);max-width:240px;transform:translate(12px,12px)}
.tip b{color:#ffd9a0}.tip small{display:block;color:#a99d8c;margin-top:.2rem}
.pop{position:absolute;width:min(330px,calc(100% - 24px));background:rgba(14,12,15,.97);color:#efe6d8;border:1px solid rgba(255,220,170,.28);border-radius:10px;padding:.85rem 1rem .9rem;font:400 14px/1.45 var(--sans);box-shadow:0 10px 30px rgba(0,0,0,.5);z-index:6}
.pop h4{margin:0 1.6rem .15rem 0;font:600 1.12rem/1.2 var(--disp);color:#fff1dc}
.pop .pd{font:500 2rem/1 var(--disp);color:#ffc98a;margin:.35rem 0}
.pop .x{position:absolute;right:6px;top:6px;width:32px;height:32px;border:0;background:transparent;color:#cdbfad;font-size:20px;cursor:pointer}
.pop .go{margin-top:.5rem;font:500 13px var(--sans);background:transparent;border:1px solid rgba(255,220,170,.35);color:#ffe2b8;border-radius:99px;padding:.4rem .75rem;cursor:pointer}
.pop p{margin:.2rem 0}

/* figures inside cards */
.fig{margin:1.2rem 0 1.2rem}
.fig figcaption{font:400 13px/1.45 var(--sans);color:var(--mute);margin-top:.4rem}
.chart{width:100%;height:auto;display:block;font-family:var(--sans)}
.chart .grid{stroke:var(--line-soft);stroke-width:1}
.chart .tk{font-size:14px;fill:var(--mute)}
.chart .lab{font-size:15px;fill:var(--ink);font-weight:500}
.chart .acc{fill:var(--acc);stroke:var(--acc)}
.chart text.acc{stroke:none}
.chart .haze{fill:var(--acc2);opacity:.28}
.chart .tight{fill:var(--acc);opacity:.85}
.chart .cut{stroke:var(--acc);stroke-width:1.5;stroke-dasharray:4 3}
.chart .band{fill:var(--band)}
.chart .r-dac{fill:var(--acc)}
.chart .r-fr{fill:var(--gold);opacity:.75}
.chart .r-int{fill:var(--mute);opacity:.55}
.chart .base{stroke:var(--line);stroke-width:1}
.chart .pl{font-size:15px;fill:var(--ink)}
.chart .ghost{fill:none;stroke:var(--acc);stroke-width:1.4;stroke-dasharray:2 2}
.chart .pool{stroke:var(--ink);stroke-width:1.5}
.chart .pool5{stroke:var(--mute);stroke-width:1.2;stroke-dasharray:3 3}
.chart .wh{stroke:var(--mute);stroke-width:2}
.chart .wh.acc{stroke:var(--acc);stroke-width:3}
.chart .dot{fill:var(--ink)}
.chart .dot.acc{fill:var(--acc)}

/* the five stones */
.steles{display:grid;gap:.8rem;margin:1.2rem 0}
.stele{background:linear-gradient(180deg,color-mix(in srgb,var(--paper) 85%,#c9b99c) ,var(--paper));border:1px solid var(--line);border-radius:12px 12px 4px 4px;padding:.9rem 1rem .8rem;position:relative}
html.dark .stele{background:linear-gradient(180deg,#221d18,var(--paper))}
.stele .date{font:500 1.9rem/1 var(--disp);color:var(--acc);margin:0 0 .15rem}
.stele .where{font:600 13px var(--sans);letter-spacing:.04em;color:var(--mute);margin:0 0 .5rem}
.stele .latin{margin:0 0 .45rem;font-size:.98rem}
.stele .tr{margin:0 0 .45rem;font-size:.95rem}
.stele .meta{font:400 12.5px/1.4 var(--sans);color:var(--mute);margin:0}

/* after 275 */
.chips{display:flex;flex-wrap:wrap;gap:.4rem;list-style:none;padding:0;margin:1rem 0}
.chips li{font:400 13.5px var(--sans);border:1px solid var(--line);border-radius:99px;padding:.25rem .65rem;background:var(--paper)}
.chips b{color:var(--acc2)}
.after-list{list-style:none;padding:0;margin:0 0 1rem;display:grid;gap:.7rem}
.after-list li{display:grid;grid-template-columns:5.2rem 1fr;gap:.1rem .8rem;border-top:1px solid var(--line-soft);padding-top:.6rem}
.after-list .d{grid-row:span 3;font:500 1.15rem/1.2 var(--disp);color:var(--acc2)}
.after-list .p{font:600 13px var(--sans);color:var(--mute)}
.after-list .latin{font-size:.92rem}.after-list .tr{font-size:.92rem}
.rel{font:500 15px var(--sans);margin:.4rem 0}

/* table */
.tablewrap{overflow-x:auto}
table.sites{width:100%;border-collapse:collapse;font:400 14px/1.4 var(--sans)}
table.sites th,table.sites td{text-align:left;padding:.5rem .4rem;border-top:1px solid var(--line-soft);vertical-align:top}
table.sites thead th{font-weight:600;color:var(--mute);border-top:0}
table.sites td b{font:600 1.02rem var(--disp);color:var(--acc);margin-right:.35rem}
table.sites .latin{font-size:.88rem;color:var(--mute)}
table.sites .num{text-align:right;white-space:nowrap}
.more{margin-top:.8rem}

/* blocks */
.block{padding:4rem 1.4rem;border-top:1px solid var(--line-soft)}
.wrap{max-width:44rem;margin:0 auto}
.plain{list-style:none;padding:0}.plain li{margin:.35rem 0}
.sources li{font:400 15px/1.45 var(--sans)}
.note{font:400 14px var(--sans);color:var(--mute)}
footer{display:flex;gap:1.2rem;flex-wrap:wrap;justify-content:center;padding:2rem 1rem 3rem;font:400 14px var(--sans);color:var(--mute);border-top:1px solid var(--line-soft)}
footer a{color:var(--mute)}

/* phones: stage on top, never under the text */
@media (max-width:999px){
  .story{display:block}
  .stage{position:sticky;top:var(--topbar);height:calc(var(--vh) * 40);z-index:3}
  .steps{padding-bottom:10vh}
  .step{min-height:0;padding:2.2rem 16px 1.6rem;display:block}
  .intro{min-height:0;padding-top:1.4rem}
  .step .card{background:var(--bg)}
  #year{font-size:1.75rem}.ylab{display:none}.darklab{display:none!important}.wmark{font-size:9.5px}
  .hud{left:8px;right:8px;bottom:8px;gap:6px}
  .ctrl{padding:3px 6px;gap:6px}
  .play .t{display:none}.play{padding:.4rem .6rem}
  #yr{width:min(34vw,170px)}
  .seg button{padding:.3rem .5rem;font-size:11.5px;min-height:30px}
  .legend{display:none}
  .whole{top:8px;right:8px}
  .pop{left:8px!important;right:8px;bottom:8px;top:auto!important;width:auto;max-height:calc(100% - 16px);overflow:auto}
  h1{font-size:1.85rem}
  h2{font-size:1.5rem}
  body{font-size:17px}
}
@media (max-width:420px){.seg{display:none}.ctrl #yr{width:30vw}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.stage,.rail,.topbar,.share-row{display:none}.story{display:block}}