:root{--ink:#16202b;--ink-soft:#50606d;--rule:#dfe4e9;--bg:#f8f8f5;--panel:#fffefb;--concept:#3d6b9e;--concept-fill:#e4edf6;--landmark:#b3423a;--landmark-fill:#f7e3e1;--tradition:#3f7d54;--tradition-fill:#e3f0e7;--dispute:#6c3f8f;--dispute-fill:#ece2f4;--defines:#b3423a;--descent:#2f5878;--contest:#6c3f8f;--parallel:#3f7d54;--link:#8a949e;--accent:#a8541c;--serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;--sans:"Inter","Helvetica Neue",Arial,sans-serif;--mono:"SFMono-Regular",Menlo,Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);font-size:19px;line-height:1.62;-webkit-font-smoothing:antialiased}.masthead{max-width:1180px;margin:0 auto;padding:68px 28px 30px}.kicker,.num{font-family:var(--sans);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}.kicker{margin:0 0 18px}h1,.site-title{margin:0 0 22px;line-height:1.05;font-weight:600}.title-pre{display:block;font-style:italic;font-weight:400;font-size:clamp(22px,3.2vw,36px);color:var(--ink-soft);margin-bottom:4px;letter-spacing:0}.title-main{display:block;font-size:clamp(34px,5.2vw,66px);font-weight:700;letter-spacing:.02em;text-transform:uppercase;color:var(--ink)}.standfirst{font-size:22px;color:var(--ink-soft);max-width:44em;margin:0 0 16px}.author-line{font-family:var(--sans);font-size:14px;color:var(--ink);margin:0 0 20px}.byline{font-family:var(--sans);font-size:13px;color:var(--ink-soft);border-top:1px solid var(--rule);padding-top:16px}.byline a,footer a{color:var(--accent)}.figurebar{max-width:1180px;margin:0 auto;padding:0 28px 22px;display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--sans);font-size:12px;color:var(--ink-soft);border-bottom:1px solid var(--rule)}.figurebar b{color:var(--ink);font-variant-numeric:tabular-nums}

/* The stage is a landscape behind the reading column, not a top panel. */
.story-shell{position:relative}.stage{position:sticky;top:0;height:100vh;z-index:0;overflow:hidden;background:linear-gradient(90deg,rgba(248,248,245,.98),rgba(248,248,245,.88) 25%,rgba(248,248,245,.52) 56%,rgba(248,248,245,.92))}.stage-inner{position:relative;height:100%;max-width:1440px;margin:auto}.stage-meta{position:absolute;z-index:3;top:3.5vh;left:clamp(330px,30vw,450px);right:4vw;display:flex;justify-content:space-between;align-items:baseline;pointer-events:none}.stage-meta>*{pointer-events:auto}#scene-title{margin:0;max-width:52ch;font:600 11px var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.map-hint{margin:3px 0 0;font:11px var(--sans);color:var(--ink-soft);opacity:.88}#explore-toggle{background:var(--panel);border:1px solid var(--rule);padding:7px 10px;color:var(--ink);font:600 10px var(--sans);letter-spacing:.08em;text-transform:uppercase;cursor:pointer}#map{position:absolute;z-index:1;top:9vh;right:3vw;width:72vw;height:72vh;min-height:420px;display:block;overflow:visible}.axisnote{position:absolute;z-index:3;right:4vw;bottom:15.5vh;width:min(42vw,610px);margin:0;font:10px/1.35 var(--sans);color:var(--ink-soft);text-align:right}.legend{position:absolute;z-index:4;right:4vw;bottom:2.4vh;max-width:72vw;display:flex;justify-content:flex-end;flex-wrap:wrap;gap:5px 15px;font:10px var(--sans);color:var(--ink-soft)}.legend span{display:inline-flex;align-items:center;gap:5px}.swatch{width:9px;height:9px;border:1.4px solid;border-radius:2px}.dash{width:18px;border-top:2px solid}.context-rail{position:absolute;z-index:4;left:14vw;right:14vw;bottom:6.2vh;min-height:52px;border-top:1px solid var(--rule);pointer-events:none}.context-rail>p{position:absolute;left:0;top:7px;margin:0;color:var(--ink-soft);font:9px var(--sans);letter-spacing:.14em;text-transform:uppercase}.context-rail>p:before{content:"Genealogy";display:block;margin-bottom:14px;color:var(--accent)}#context-events{display:flex;justify-content:flex-end;gap:9px;margin-left:135px;padding-top:7px;pointer-events:auto}.context-event{max-width:190px;border-left:2px solid var(--accent);padding:1px 0 2px 7px;background:rgba(248,248,245,.8);font:11px/1.25 var(--sans);color:var(--ink);text-align:left;cursor:pointer}.context-event span{display:block;margin-bottom:2px;font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}#story-annotation{position:absolute;z-index:4;left:5vw;bottom:17vh;max-width:230px;font:12px/1.35 var(--sans);color:var(--ink-soft);pointer-events:none}#story-annotation:empty{display:none}#story-annotation b{display:block;color:var(--ink);font-weight:600}#evidence-card{position:absolute;z-index:10;right:4vw;top:14vh;width:min(350px,29vw);max-height:56vh;overflow:auto;background:var(--panel);border:1px solid var(--rule);border-left:3px solid var(--accent);padding:16px 17px;box-shadow:0 12px 32px rgba(16,27,36,.14);font:12px/1.45 var(--sans)}#evidence-card[hidden]{display:none}.card-close{position:absolute;top:8px;right:10px;background:none;border:none;font-size:18px;line-height:1;color:var(--ink-soft);cursor:pointer;padding:2px 6px}.card-close:hover{color:var(--ink)}.evidence-k{font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:5px}.evidence-h{font:18px/1.18 var(--serif);margin-bottom:10px}.evidence-h span{color:var(--ink-soft)}#evidence-card dl{display:grid;grid-template-columns:78px 1fr;gap:4px 8px;margin:0}#evidence-card dt{color:var(--ink-soft)}#evidence-card dd{margin:0;overflow-wrap:anywhere}.evidence-note{border-top:1px solid var(--rule);margin-top:10px;padding-top:8px;color:var(--ink-soft)}.evidence-source{margin-top:9px;font:10px var(--mono);overflow-wrap:anywhere}.evidence-rel{border-top:1px solid var(--rule);margin-top:10px;padding-top:8px}.evidence-rel>span{font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}.evidence-rel ul{padding:0;margin:5px 0 0;list-style:none}.evidence-rel li{margin:2px 0}.evidence-rel b{font-weight:600}

/* The only scroll triggers are visible editorial beats. The active card is a
   solid object; the map camera receives the measured space beside it. */
.scene-step{width:min(330px,27vw);max-width:380px;min-height:46vh;display:flex;align-items:center;pointer-events:none}.scene-step:not(.subsequent-beat){width:min(356px,30vw)}.scene-step.side-left{margin-left:0;margin-right:auto}.scene-step.side-right{margin-left:auto;margin-right:0}.scene-step.is-active.card-on-left{margin-left:0;margin-right:auto}.scene-step.is-active.card-on-right{margin-left:auto;margin-right:0}.beat-copy{width:100%;padding:16px 18px 18px;background:#fffefb;border-top:2px solid var(--accent);box-shadow:0 5px 20px rgba(22,32,43,.055);opacity:0;visibility:hidden;transform:translateX(12px);transition:opacity 210ms ease,transform 210ms ease,visibility 0s linear 210ms}.scene-step.card-on-left .beat-copy{transform:translateX(-12px)}.scene-step.is-active{pointer-events:auto}.scene-step.is-active .beat-copy{opacity:1;visibility:visible;transform:translateX(0);transition:opacity 210ms ease,transform 210ms ease,visibility 0s}.scene-step.is-active.card-entering .beat-copy{transition-delay:70ms}.scene-step.is-exiting .beat-copy{opacity:0;visibility:visible;transition:opacity 180ms ease,transform 180ms ease,visibility 0s}.beat-copy h2{font-size:clamp(22px,2.2vw,30px);line-height:1.12;margin:6px 0 12px;font-weight:600;letter-spacing:-.01em}.beat-copy p{font-size:16px;line-height:1.48;margin:0 0 12px}.beat-copy p:last-child{margin-bottom:0}.chapter:last-child{padding-bottom:18vh}
.scene-step.subsequent-beat .beat-copy{padding:13px 15px 15px;border-top-width:1.5px}.scene-step.subsequent-beat .beat-copy h2{font-size:clamp(17px,1.6vw,22px);margin:4px 0 8px;font-weight:600}.scene-step.subsequent-beat .num{font-size:10px;letter-spacing:.12em}

.node{cursor:pointer;outline:none;transform-box:fill-box;transform-origin:center;transition:opacity .45s ease}.node.scene-hidden,.edge.scene-hidden,.axis.scene-hidden,#band-guides.scene-hidden{opacity:0!important;pointer-events:none}.node.scene-muted{opacity:.18}.node.scene-hot circle:first-of-type{stroke-width:2.9px}.node.selected circle:first-of-type{stroke-width:3.5px}.node:focus circle:first-of-type{stroke-width:3px}.edge{fill:none;stroke-width:1.4px;transition:opacity .45s ease,stroke-width .25s ease}.edge.scene-muted{opacity:.1}.edge.hot,.edge.selected{stroke-width:2.6px}.nodelab{font:9.5px var(--sans);fill:var(--ink);paint-order:stroke;stroke:var(--bg);stroke-width:3.2px;stroke-linejoin:round;pointer-events:none}.bandlab,.axisnote,#time-axis{display:none}.axis line,.axis path{stroke:var(--rule)}.axis text{font:10.5px var(--sans);fill:var(--ink-soft)}
#screen-space-overlay{position:absolute;z-index:4;inset:0;pointer-events:none;font-family:var(--sans);color:var(--ink-soft)}#screen-axis{position:absolute;height:28px;border-top:1px solid var(--rule);font-size:10px;line-height:1;transition:left .36s ease,top .36s ease,width .36s ease}.screen-axis-ticks{position:absolute;inset:0;opacity:1;transition:opacity .36s ease}.screen-axis-ticks.is-outgoing{opacity:0}.screen-axis-tick{position:absolute;top:5px;transform:translateX(-50%);white-space:nowrap;transition:left .36s ease}.screen-axis-tick:before{content:"";position:absolute;left:50%;top:-6px;height:4px;border-left:1px solid var(--rule)}.axis-orientation{position:absolute;right:0;top:16px;font-size:9px;white-space:nowrap;background:var(--bg);padding-left:8px}.screen-band-label{position:absolute;font-size:9px;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;color:var(--ink-soft);opacity:.9;transition:top .36s ease}
.node.scene-enter{animation:node-in var(--motion,720ms) cubic-bezier(.22,.7,.25,1) both;animation-delay:var(--enter-delay,0ms)}.edge.scene-enter{animation:edge-in var(--motion,720ms) cubic-bezier(.22,.7,.25,1) both;animation-delay:var(--enter-delay,0ms)}.transition-trace .edge.scene-enter,.transition-converge .edge.scene-enter{stroke-dasharray:1;stroke-dashoffset:1;animation:trace-in var(--motion,820ms) cubic-bezier(.35,.05,.2,1) both;animation-delay:var(--enter-delay,0ms)}.transition-branch .node.scene-enter{animation-name:branch-in}.transition-parallel .node.scene-enter{animation-name:parallel-in}.transition-contest .node.scene-enter{animation-name:contest-in}.transition-reveal-all .node.scene-enter{animation-name:node-in;animation-duration:980ms}@keyframes node-in{from{opacity:0;transform:scale(.78)}to{opacity:1;transform:scale(1)}}@keyframes edge-in{from{opacity:0}to{opacity:.55}}@keyframes trace-in{from{stroke-dashoffset:1;opacity:.1}to{stroke-dashoffset:0;opacity:.8}}@keyframes branch-in{from{opacity:0;transform:translate(8px,3px) scale(.8)}to{opacity:1;transform:none}}@keyframes parallel-in{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}@keyframes contest-in{from{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}
#tip{position:fixed;z-index:60;max-width:330px;background:var(--panel);border:1px solid var(--rule);box-shadow:0 8px 26px rgba(0,0,0,.13);padding:13px 15px;font:12px/1.5 var(--sans);pointer-events:none;opacity:0;transition:opacity .12s}#tip .h{font-size:13px;font-weight:600;margin-bottom:5px}#tip .k{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:7px}#tip .src{margin-top:9px;font:10px var(--mono);color:var(--ink-soft)}
.section{max-width:1180px;margin:0 auto;padding:88px 28px;border-top:1px solid var(--rule)}.section h2{font-size:32px;line-height:1.14;margin:0 0 12px;font-weight:600}.section .lede{max-width:42em;margin:0 0 30px;color:var(--ink-soft)}
.meta-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;margin:28px 0 36px;font:13px/1.5 var(--sans)}.meta-card{background:var(--panel);border:1px solid var(--rule);border-top:2px solid var(--accent);padding:20px 22px}.meta-card h3{margin:0 0 14px;font-size:14px;font-family:var(--sans);letter-spacing:.05em;text-transform:uppercase;color:var(--accent)}.meta-card dl{display:grid;grid-template-columns:85px 1fr;gap:6px 12px;margin:0 0 16px}.meta-card dt{color:var(--ink-soft);font-weight:600}.meta-card dd{margin:0;color:var(--ink)}.meta-card p{margin:0 0 10px;color:var(--ink-soft)}.citation-note,.ack-note{border-top:1px solid var(--rule);padding-top:12px;margin-top:12px;font-size:12px;color:var(--ink-soft)}.citation-note a,.ack-note a,.meta-card a{color:var(--accent)}
table{width:100%;border-collapse:collapse;font:13px var(--sans)}th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--rule)}th{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}td.n{text-align:right;font-variant-numeric:tabular-nums}figure{margin:0}figure img{width:100%;height:auto;border:1px solid var(--rule);background:#fff}figcaption{max-width:52em;margin-top:11px;font:12px var(--sans);color:var(--ink-soft)}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:18px;font:13px var(--sans)}.card{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:15px 0}.card h3{margin:0 0 8px;font-size:14px}.card code{font:11px var(--mono);color:var(--accent);word-break:break-word}footer{max-width:1180px;margin:0 auto;padding:52px 28px 80px;border-top:1px solid var(--rule);font:12px var(--sans);color:var(--ink-soft)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.context-event{border:0;border-left:2px solid var(--accent);font:11px/1.25 var(--sans)}
@media(max-width:900px){body{font-size:17.5px}.masthead,.figurebar,.section,footer{padding-left:18px;padding-right:18px}.stage{position:sticky;top:0;height:42vh;min-height:280px;max-height:380px;z-index:20;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--rule);box-shadow:0 4px 16px rgba(0,0,0,.06)}.stage-inner{height:100%;min-height:0}.stage-meta{top:10px;left:14px;right:14px}#map{top:45px;right:10px;left:10px;width:calc(100% - 20px);height:calc(100% - 68px);min-height:0}.axisnote{display:none}.context-rail{left:14px;right:14px;bottom:4px;min-height:24px;border-top:none}.context-rail>p{display:none}#context-events{margin-left:0;justify-content:flex-start;overflow-x:auto;padding-top:0}.legend{display:none}.essay{position:relative;z-index:10;margin-top:0;padding:0 14px}.chapter{min-height:auto;gap:0}.scene-step,.scene-step.side-left,.scene-step.side-right{width:100%;min-height:0;margin:0;padding:36vh 0 16vh 0}.beat-copy{max-width:100%;padding:18px 18px 20px}.scene-step:nth-child(even) .beat-copy{margin-left:0}#story-annotation{display:none}#evidence-card{position:fixed;right:14px;left:14px;top:12vh;z-index:100;width:auto;max-height:72vh;box-shadow:0 16px 40px rgba(0,0,0,.25)}.section{padding-top:54px;padding-bottom:54px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.node,.edge,#tip{transition:none!important}.node.scene-enter,.edge.scene-enter{animation:none!important}}