/* Exchange draft only: the established reader shell, with ledger / computing exhibits. */
/* Revision 02: documentary spreads stay opt-in to this Current. */
[data-current="exchange-infrastructure-era"] :is(.exchange-people,.exchange-interface,.exchange-withdrawal,.exchange-invoice){margin:3rem 0;scroll-margin-top:calc(var(--reading-offset,5rem) + 12px)}
[data-current="exchange-infrastructure-era"] :is(.exchange-people,.exchange-interface,.exchange-withdrawal,.exchange-invoice)>header{border-top:2px solid #a88a50;padding-top:1.3rem}
[data-current="exchange-infrastructure-era"] :is(.exchange-people,.exchange-interface,.exchange-withdrawal,.exchange-invoice) h3{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.15;margin:.5rem 0 1.3rem}
[data-current="exchange-infrastructure-era"] .exchange-portrait-spread{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem;align-items:start}
[data-current="exchange-infrastructure-era"] .exchange-portrait-spread .exchange-photo{margin:0}
[data-current="exchange-infrastructure-era"] .exchange-portrait-spread img{display:block;max-height:none;height:auto}
[data-current="exchange-infrastructure-era"] .exchange-person-notes{border-left:1px solid #b29a70;padding-left:1.5rem}
[data-current="exchange-infrastructure-era"] .exchange-person-notes blockquote{margin:1rem 0;font-size:1.65rem;line-height:1.35;font-style:italic}
[data-current="exchange-infrastructure-era"] .exchange-person-notes p{font-size:.95rem;line-height:1.65}
[data-current="exchange-infrastructure-era"] .exchange-person-notes hr{border:0;border-top:1px solid #c8b99c;margin:1.4rem 0}
[data-current="exchange-infrastructure-era"] .exchange-interface{background:#eee7d8;padding:1.5rem 2rem;border:1px solid #b7a17b}
[data-current="exchange-infrastructure-era"] .exchange-interface>header{border-top:0;padding-top:0}
[data-current="exchange-infrastructure-era"] .exchange-interface .exchange-photo img{display:block;max-width:773px;width:100%;height:auto;max-height:none;margin-inline:auto;background:transparent}
[data-current="exchange-infrastructure-era"] .exchange-interface-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem;list-style:none;padding:0;counter-reset:interface-note}
[data-current="exchange-infrastructure-era"] .exchange-interface-notes li{border-top:1px solid #a88a50;padding-top:.75rem;counter-increment:interface-note}
[data-current="exchange-infrastructure-era"] .exchange-interface-notes li::before{content:'0' counter(interface-note);display:block;font: .8rem/1.8 ui-monospace,Consolas,monospace;color:#77591f}
[data-current="exchange-infrastructure-era"] .exchange-interface-notes p{font-size:.9rem;line-height:1.6}
[data-current="exchange-infrastructure-era"] .exchange-interface code{overflow-wrap:anywhere}
[data-current="exchange-infrastructure-era"] .exchange-license{border-top:1px solid #b7a17b;padding-block:.5rem;font-size:.8rem}
[data-current="exchange-infrastructure-era"] :is(.exchange-license,.exchange-invoice) summary{min-height:44px;padding-block:.7rem;cursor:pointer}
[data-current="exchange-infrastructure-era"] :is(.exchange-license,.exchange-invoice) summary:focus-visible{outline:2px solid #876326;outline-offset:3px}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal{border:1px solid #b7a17b;background:repeating-linear-gradient(0deg,#faf6eb 0 31px,#c8b99c35 32px,#faf6eb 33px)}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal>header{background:#102b37;color:#f6efdf;padding:1.5rem 2rem;border-top:0}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal>header :is(.eyebrow,a){color:#e0c28c}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal ol{list-style:none;margin:0;padding:0 2rem}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal li{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2.4fr) minmax(0,.8fr);gap:1.3rem;padding:1.2rem 0;border-bottom:1px solid #b9a783}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal li :is(time,span){font:.75rem/1.5 ui-monospace,Consolas,monospace;color:#76551d}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal li strong{font-size:1.15rem}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal li p{font-size:.95rem;line-height:1.6;margin:.5rem 0 0}
[data-current="exchange-infrastructure-era"] .exchange-withdrawal>.exchange-qualification{padding:1rem 2rem;margin:0;font-size:.85rem}
[data-current="exchange-infrastructure-era"] .exchange-invoice ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.4rem;list-style:none;padding:0;margin:2rem 0}
[data-current="exchange-infrastructure-era"] .exchange-invoice li{border-top:2px solid #a88a50;padding-top:.8rem}
[data-current="exchange-infrastructure-era"] .exchange-invoice li span{display:block;font:.7rem/1.8 ui-monospace,Consolas,monospace;color:#76551d;text-transform:uppercase}
[data-current="exchange-infrastructure-era"] .exchange-invoice li strong{font-size:1.2rem}
[data-current="exchange-infrastructure-era"] .exchange-invoice li p{font-size:.95rem;line-height:1.6}
[data-current="exchange-infrastructure-era"] .exchange-invoice details{max-width:42rem;border-left:3px solid #987641;padding-left:1.25rem}
@media(max-width:800px){
 [data-current="exchange-infrastructure-era"] .exchange-portrait-spread{grid-template-columns:1fr;gap:1rem}
 [data-current="exchange-infrastructure-era"] .exchange-portrait-spread .exchange-photo{max-width:32rem}
 [data-current="exchange-infrastructure-era"] .exchange-interface-notes{grid-template-columns:1fr;gap:.5rem}
 [data-current="exchange-infrastructure-era"] .exchange-invoice ol{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
 [data-current="exchange-infrastructure-era"] .exchange-interface{padding:1rem}
 [data-current="exchange-infrastructure-era"] .exchange-withdrawal>header{padding:1.2rem}
 [data-current="exchange-infrastructure-era"] .exchange-withdrawal ol{padding:0 1.2rem}
 [data-current="exchange-infrastructure-era"] .exchange-withdrawal li{grid-template-columns:1fr;gap:.5rem}
 [data-current="exchange-infrastructure-era"] .exchange-withdrawal li>span{border-left:2px solid #a88a50;padding-left:.5rem}
 [data-current="exchange-infrastructure-era"] .exchange-withdrawal>.exchange-qualification{padding:1rem 1.2rem}
 [data-current="exchange-infrastructure-era"] .exchange-invoice ol{grid-template-columns:1fr}
}
[data-current="exchange-infrastructure-era"] .hero{background:linear-gradient(90deg,#06131c,#132e39);position:relative;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);padding-block:4rem}
[data-current="exchange-infrastructure-era"] .hero h1{font-size:clamp(2.7rem,5.2vw,5.4rem);line-height:1.03;letter-spacing:-.04em}
[data-current="exchange-infrastructure-era"] .hero .orientation{background:repeating-linear-gradient(0deg,transparent 0 43px,#b6945120 44px 45px);border-left:1px solid #9c814c;padding:1rem 2rem}
[data-current="exchange-infrastructure-era"] .orientation>span{font-style:normal;font-size:clamp(1.5rem,2.4vw,2.7rem);font-variant-numeric:tabular-nums}
[data-current="exchange-infrastructure-era"] .narrative-section>.reader,[data-current="exchange-infrastructure-era"] .narrative-section>header{margin-inline:0;max-width:37rem}
[data-current="exchange-infrastructure-era"] .narrative-section:focus-visible{outline:2px solid var(--gold);outline-offset:6px}
[data-current="exchange-infrastructure-era"][data-chapter-input="pointer"] .narrative-section:focus{outline:none}
[data-current="exchange-infrastructure-era"] .reader h3{font-size:1.65rem;letter-spacing:-.015em;padding-top:1rem;border-top:1px solid var(--rule);margin-top:2.5rem}
[data-current="exchange-infrastructure-era"] .exchange-exhibit{margin:3rem 0;scroll-margin-top:calc(var(--reading-offset,5rem) + 12px);border:1px solid #9c814c;background:#efe7d6}
[data-current="exchange-infrastructure-era"] .exchange-exhibit>header{padding:1.7rem 2rem;border-bottom:1px solid #9c814c;background:#0d2732;color:#f8f3e8}
[data-current="exchange-infrastructure-era"] .exchange-exhibit>header .eyebrow{color:#d8bb80;font: .65rem/1.5 ui-monospace,Consolas,monospace;letter-spacing:.1em}
[data-current="exchange-infrastructure-era"] .exchange-exhibit h3{font-size:clamp(1.9rem,2.8vw,2.8rem);margin:.5rem 0;letter-spacing:-.025em}
[data-current="exchange-infrastructure-era"] .exchange-exhibit>header>p:last-child{max-width:43rem;font-size:.95rem;line-height:1.65;color:#d9e0dc}
[data-current="exchange-infrastructure-era"] .exchange-controls{display:flex;flex-wrap:wrap;gap:1px;background:#b9a783;border-bottom:1px solid #9c814c;padding:1px}
[data-current="exchange-infrastructure-era"] .exchange-controls button{flex:1 1 auto;padding:.65rem .8rem;min-height:48px;background:#f8f3e8;border:0;font-size:.83rem;line-height:1.3}
[data-current="exchange-infrastructure-era"] .exchange-controls button[aria-pressed=true]{background:#876326;color:#fffaf0;box-shadow:inset 0 -4px #30271c}
[data-current="exchange-infrastructure-era"] .exchange-controls button:hover{background:#e6d7b8;color:#10232f}
[data-current="exchange-infrastructure-era"] .exchange-controls button:focus-visible{outline:3px solid #10232f;outline-offset:-5px;text-decoration:underline}
[data-current="exchange-infrastructure-era"] .exchange-stage{padding:1.4rem 2rem 1.8rem;border-bottom:1px solid #c5b592;background:linear-gradient(90deg,transparent 39px,#b79b6420 40px,transparent 41px),#f5efdf}
[data-current="exchange-infrastructure-era"] .exchange-stage h4{font-size:clamp(1.5rem,2.1vw,2rem);margin:.6rem 0 1rem}
[data-current="exchange-infrastructure-era"] .exchange-stage p{font-size:1rem;line-height:1.7;max-width:42rem}
[data-current="exchange-infrastructure-era"] .exchange-stage .exchange-register{font:.7rem/1.4 ui-monospace,Consolas,monospace;letter-spacing:.13em;color:#75531d;margin:0}
[data-current="exchange-infrastructure-era"] .exchange-pair{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}
[data-current="exchange-infrastructure-era"] .exchange-pair>*{min-width:0}
[data-current="exchange-infrastructure-era"] .exchange-ledger{margin:.8rem 0;padding:1rem 1.2rem;background:#fffaf0;border-top:3px solid #9d7c40}
[data-current="exchange-infrastructure-era"] .exchange-ledger .eyebrow{font:.7rem/1.5 ui-monospace,Consolas,monospace;color:#76551d;margin:0 0 .7rem}
[data-current="exchange-infrastructure-era"] .exchange-ledger dl{margin:0}
[data-current="exchange-infrastructure-era"] .exchange-ledger dt{font-size:.73rem;color:#5e665f;border-top:1px solid #d8ceba;padding-top:.65rem}
[data-current="exchange-infrastructure-era"] .exchange-ledger dd{margin:.2rem 0 .75rem;font-size:.98rem;line-height:1.5}
[data-current="exchange-infrastructure-era"] .exchange-exhibit .exchange-qualification{font-size:.82rem;border-top:1px solid #c5b592;padding-top:1rem;margin-bottom:0;color:#4c574f}
[data-current="exchange-infrastructure-era"] .exchange-exhibit .exchange-hold{font-size:.8rem;color:#5e665f;border-left:2px solid #aa8953;padding-left:1rem}
[data-current="exchange-infrastructure-era"] .exchange-live{font-size:.78rem;margin:0;padding:.6rem 2rem;color:#555a4f}
[data-current="exchange-infrastructure-era"] .exchange-live:empty{display:none}
[data-current="exchange-infrastructure-era"] .exchange-phone{margin:0;max-width:18rem;justify-self:center}
[data-current="exchange-infrastructure-era"] .exchange-phone svg{width:100%;display:block}
[data-current="exchange-infrastructure-era"] .exchange-phone figcaption{font-size:.72rem;line-height:1.5;text-align:center;color:#5e665f}
[data-current="exchange-infrastructure-era"] .exchange-machine{background:#102b37;margin:1.4rem 0;padding:1rem 1.5rem;color:#e4d2ac}
[data-current="exchange-infrastructure-era"] .exchange-machine svg{width:100%;max-height:270px;display:block}
[data-current="exchange-infrastructure-era"] .exchange-machine figcaption{font:.7rem/1.6 ui-monospace,Consolas,monospace;text-align:center;margin-top:.75rem}
[data-current="exchange-infrastructure-era"] .exchange-photo{margin:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-photo img{width:100%;max-height:540px;object-fit:contain;background:#ebe4d5}
[data-current="exchange-infrastructure-era"] .exchange-photo figcaption p{font-size:.84rem}
[data-current="exchange-infrastructure-era"] .exchange-photo details{font-size:.8rem}
[data-current="exchange-infrastructure-era"] .exchange-photo summary{min-height:44px}
[data-current="exchange-infrastructure-era"] .exchange-document{max-width:43rem;margin:2.5rem 0;padding:1.5rem 2rem;background:#eee5d1;border-top:4px double #93743e;border-bottom:1px solid #c7b590;scroll-margin-top:var(--reading-offset,5rem)}
[data-current="exchange-infrastructure-era"] .exchange-document h3{font-size:1.7rem;margin:.5rem 0}
[data-current="exchange-infrastructure-era"] .exchange-document>p:not(.eyebrow){font-size:1rem}
[data-current="exchange-infrastructure-era"] .exchange-document>.eyebrow{font:.65rem/1.6 ui-monospace,Consolas,monospace}
[data-current="exchange-infrastructure-era"] .has-chapter-footer{padding-bottom:calc(var(--chapter-footer-height,80px) + 20px)}
@media(max-width:899px){
 [data-current="exchange-infrastructure-era"] .hero{grid-template-columns:1fr}
 [data-current="exchange-infrastructure-era"] .hero .orientation{display:none}
 [data-current="exchange-infrastructure-era"] .exhibition-layout{display:block;padding-inline:clamp(1.25rem,6vw,5rem)}
 [data-current="exchange-infrastructure-era"] .exhibition-body{padding-inline:0}
 [data-current="exchange-infrastructure-era"] .exhibition-body>.current-position{margin-inline:calc(-1 * clamp(1.25rem,6vw,5rem));padding-inline:6vw}
 [data-current="exchange-infrastructure-era"] .chapter-rail{position:static;max-height:none;overflow:visible;border-right:0;margin-inline:calc(-1 * clamp(1.25rem,6vw,5rem));padding:0 6vw}
 [data-current="exchange-infrastructure-era"] .index-disclosure{border:0;padding:0}
 [data-current="exchange-infrastructure-era"] .index-disclosure>summary{display:list-item;pointer-events:auto;min-height:48px;padding-block:.8rem;font-size:.8rem}
 [data-current="exchange-infrastructure-era"] .index-disclosure>summary::after{display:block;color:#dfbd70}
 [data-current="exchange-infrastructure-era"] .index-disclosure:not([open])>nav{display:none}
 [data-current="exchange-infrastructure-era"] .chapter-rail nav{padding:1rem 0;max-height:65dvh;overflow:auto}
 [data-current="exchange-infrastructure-era"] .chapter-rail nav::before,[data-current="exchange-infrastructure-era"] .chapter-rail a::before{display:none}
 [data-current="exchange-infrastructure-era"] .chapter-rail ol{list-style:none;padding:0;margin:0}
 [data-current="exchange-infrastructure-era"] .chapter-rail a{min-height:44px;align-items:center;font-size:.85rem;padding-right:34px}
 [data-current="exchange-infrastructure-era"] .chapter-rail .chapter-info{min-height:44px;width:30px}
}

/* Revision 01: archival spreads, retail route and documentary time. New Current only. */
[data-current="exchange-infrastructure-era"] .exchange-opening{max-width:43rem;margin:2.5rem 0;padding:1.2rem 0 1.2rem 1.6rem;border-left:3px solid #ad8842}
[data-current="exchange-infrastructure-era"] .exchange-opening>p:last-child{font-size:1.45rem;line-height:1.5;margin:.6rem 0}
[data-current="exchange-infrastructure-era"] .exchange-market-terms{margin:2rem 0;max-width:37rem;border-block:1px solid #b69b69;padding:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-market-terms dl{display:grid;grid-template-columns:5rem 1fr;gap:.8rem;margin:0 0 .5rem}
[data-current="exchange-infrastructure-era"] .exchange-market-terms dt{font-family:ui-monospace,Consolas,monospace;color:#876326}
[data-current="exchange-infrastructure-era"] .exchange-market-terms dd{margin:0;line-height:1.5}
[data-current="exchange-infrastructure-era"] .exchange-etymology{max-width:42rem;margin:3rem 0;border-block:1px solid #b69b69;padding:1.5rem 0}
[data-current="exchange-infrastructure-era"] .exchange-etymology .exchange-letterform{font:clamp(2rem,5vw,4rem)/1.2 ui-monospace,Consolas,monospace;letter-spacing:.09em;margin:1rem 0;color:#876326}
[data-current="exchange-infrastructure-era"] .exchange-etymology h3{font-size:1.5rem;margin:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-etymology blockquote{font-size:1.25rem;font-style:italic;margin:1.5rem 0 1rem}
[data-current="exchange-infrastructure-era"] .exchange-qualification{font-size:.82rem;line-height:1.65;color:#525e56}
[data-current="exchange-infrastructure-era"] .exchange-route-strip{list-style:none;padding:1.2rem 1.6rem;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;background:#e7dcc6;border-bottom:1px solid #ad9465}
[data-current="exchange-infrastructure-era"] .exchange-route-strip li{font-size:.8rem;line-height:1.5;position:relative;min-width:0}
[data-current="exchange-infrastructure-era"] .exchange-route-strip li:not(:last-child)::after{content:'→';position:absolute;right:-1rem;top:1.2rem;color:#876326}
[data-current="exchange-infrastructure-era"] .exchange-route-strip span{display:block;font:.65rem/1.5 ui-monospace,Consolas,monospace;color:#876326;margin-bottom:.3rem}
[data-current="exchange-infrastructure-era"] .exchange-paper-object{margin:.5rem auto;max-width:18rem;transform:rotate(2deg)}
[data-current="exchange-infrastructure-era"] .exchange-paper-object>div{background:#fffaf0;border:1px solid #c3b18d;border-bottom:3px double #876326;padding:1.5rem;box-shadow:5px 6px 0 #b9a88230}
[data-current="exchange-infrastructure-era"] .exchange-paper-object :is(strong,span,i){display:block}
[data-current="exchange-infrastructure-era"] .exchange-paper-object strong{font-size:1.4rem;font-weight:400;margin:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-paper-object span:not(.eyebrow){font:.75rem/1.7 ui-monospace,Consolas,monospace;border-bottom:1px solid #c4b492;padding:.5rem 0}
[data-current="exchange-infrastructure-era"] .exchange-paper-object i{border-bottom:1px solid #c4b492;width:60%;height:1.2rem}
[data-current="exchange-infrastructure-era"] .exchange-paper-object figcaption{font-size:.7rem;line-height:1.6;margin-top:.9rem}
[data-current="exchange-infrastructure-era"] :is(.exchange-counter,.exchange-workshop-notes){display:grid;grid-template-columns:1fr 1.5fr;gap:2rem;align-items:start}
[data-current="exchange-infrastructure-era"] .exchange-stage .exchange-place{font-size:2.2rem;line-height:1.2;color:#876326;margin:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-place span{display:block;font:.75rem/1.6 ui-monospace,Consolas,monospace;margin-top:1rem}
[data-current="exchange-infrastructure-era"] .exchange-destinations{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin:1.5rem 0}
[data-current="exchange-infrastructure-era"] .exchange-destinations>section{border-top:3px solid #967340;padding:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-destinations>section+section{border-top-style:double}
[data-current="exchange-infrastructure-era"] .exchange-destinations h5{font-size:1.5rem;line-height:1.2;font-weight:400;margin:.8rem 0}
[data-current="exchange-infrastructure-era"] .exchange-stage .exchange-route-fork{max-width:none;text-align:center;font-style:italic;border-bottom:1px solid #ad9465;padding-bottom:.7rem}
[data-current="exchange-infrastructure-era"] .exchange-route-fork span{display:block;letter-spacing:2rem;font-size:2rem;color:#876326}
[data-current="exchange-infrastructure-era"] .exchange-distinction{border-block:1px solid #ad9465;padding-block:1rem;font-style:italic}
[data-current="exchange-infrastructure-era"] .exchange-archival-spread{margin:3rem 0;scroll-margin-top:var(--reading-offset,5rem)}
[data-current="exchange-infrastructure-era"] .exchange-archival-spread>h3{font-size:2.4rem;margin:.6rem 0 1.3rem}
[data-current="exchange-infrastructure-era"] .exchange-archival-spread .exchange-photo img{max-height:none}
[data-current="exchange-infrastructure-era"] .exchange-photo{scroll-margin-top:calc(var(--reading-offset,5rem) + 12px)}
[data-current="exchange-infrastructure-era"] .exchange-photo .exchange-visible-credit{font-size:.78rem;margin:.6rem 0}
[data-current="exchange-infrastructure-era"] .exchange-photo figcaption a{display:inline-block;min-height:32px;line-height:1.7;overflow-wrap:anywhere}
[data-current="exchange-infrastructure-era"] .exchange-observation{display:flex;flex-wrap:wrap;gap:1rem 2rem;list-style:none;padding:1rem 0;border-block:1px solid #b69b69}
[data-current="exchange-infrastructure-era"] .exchange-observation li{font-size:.85rem;line-height:1.5}
[data-current="exchange-infrastructure-era"] #exchange-mining{border:0;background:transparent}
[data-current="exchange-infrastructure-era"] #exchange-mining>header{background:transparent;color:#10232f;padding-inline:0;border-top:3px solid #987641}
[data-current="exchange-infrastructure-era"] #exchange-mining>header :is(.eyebrow,p:last-child){color:#596050}
[data-current="exchange-infrastructure-era"] #exchange-mining .exchange-stage{background:transparent;padding:2rem 0;border-bottom:1px solid #ad9465}
[data-current="exchange-infrastructure-era"] #mining-panel-0{display:flow-root}
[data-current="exchange-infrastructure-era"] #mining-panel-0 .exchange-machine{float:right;width:38%;margin:0 0 1rem 2rem;padding:.7rem}
[data-current="exchange-infrastructure-era"] #mining-panel-0 .exchange-ledger{max-width:55%;background:transparent}
[data-current="exchange-infrastructure-era"] #exchange-mining .exchange-photo img{max-height:none}
[data-current="exchange-infrastructure-era"] .exchange-pool-intro{margin:3rem 0 1.5rem;max-width:37rem;border-left:3px solid #987641;padding-left:1.5rem}
[data-current="exchange-infrastructure-era"] .exchange-pool-intro blockquote{font-size:1.7rem;line-height:1.4;margin:0;font-style:italic}
[data-current="exchange-infrastructure-era"] .exchange-pool-intro>p{font-size:.8rem}
[data-current="exchange-infrastructure-era"] #exchange-pool .exchange-panels{display:grid;grid-template-columns:1fr 1fr}
[data-current="exchange-infrastructure-era"] #exchange-pool[data-active-stage]:not([data-active-stage="all"]) .exchange-panels{grid-template-columns:1fr}
[data-current="exchange-infrastructure-era"] .exchange-reward-line{height:70px;display:flex;align-items:end;gap:12px;border-bottom:1px solid #b29765;margin:1.4rem 0;padding-bottom:8px}
[data-current="exchange-infrastructure-era"] .exchange-reward-line i{flex:1;height:1px;background:#b29765}
[data-current="exchange-infrastructure-era"] .exchange-reward-line b{flex:1;height:50px;background:#876326}
[data-current="exchange-infrastructure-era"] .exchange-pooled b{height:12px}
[data-current="exchange-infrastructure-era"] .exchange-delivery{margin:3rem 0;padding:1.5rem 0;border-block:1px solid #a88a50;scroll-margin-top:var(--reading-offset,5rem)}
[data-current="exchange-infrastructure-era"] .exchange-delivery>h3{font-size:2.2rem;margin:.5rem 0 1.5rem}
[data-current="exchange-infrastructure-era"] .exchange-delivery ol{list-style:none;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:1.4rem;padding:0;margin:2rem 0;border-top:2px solid #a88a50}
[data-current="exchange-infrastructure-era"] .exchange-delivery li{padding-top:.7rem;position:relative}
[data-current="exchange-infrastructure-era"] .exchange-delivery li::before{content:'';position:absolute;width:8px;height:8px;border-radius:50%;background:#876326;top:-5px;left:0}
[data-current="exchange-infrastructure-era"] .exchange-delivery :is(li span,li strong,li small){display:block}
[data-current="exchange-infrastructure-era"] .exchange-delivery li span{font:.75rem/1.5 ui-monospace,Consolas,monospace;color:#876326}
[data-current="exchange-infrastructure-era"] .exchange-delivery li strong{font-size:1.5rem;font-weight:400}
[data-current="exchange-infrastructure-era"] .exchange-delivery li small{font-size:.7rem}
[data-current="exchange-infrastructure-era"] .exchange-delivery blockquote{max-width:34rem;margin:2rem 0 1rem;font-size:1.6rem;line-height:1.4;font-style:italic}
@media(max-width:600px){
 [data-current="exchange-infrastructure-era"] .exchange-route-strip{grid-template-columns:1fr 1fr;padding:1rem;gap:1rem 1.5rem}
 [data-current="exchange-infrastructure-era"] .exchange-route-strip li::after{display:none}
 [data-current="exchange-infrastructure-era"] :is(.exchange-counter,.exchange-workshop-notes,.exchange-destinations){grid-template-columns:1fr;gap:1rem}
 [data-current="exchange-infrastructure-era"] .exchange-stage .exchange-place{font-size:1.7rem}
 [data-current="exchange-infrastructure-era"] #mining-panel-0 .exchange-machine{float:none;width:100%;margin:1rem 0}
 [data-current="exchange-infrastructure-era"] #mining-panel-0 .exchange-ledger{max-width:none}
 [data-current="exchange-infrastructure-era"] #exchange-pool .exchange-panels{grid-template-columns:1fr}
 [data-current="exchange-infrastructure-era"] .exchange-delivery ol{grid-template-columns:1fr;border-top:0;border-left:2px solid #a88a50;padding-left:1.2rem}
 [data-current="exchange-infrastructure-era"] .exchange-delivery li::before{top:1rem;left:calc(-1.2rem - 5px)}
 [data-current="exchange-infrastructure-era"] .exchange-photo figcaption a{min-height:44px}
 [data-current="exchange-infrastructure-era"] .exchange-opening{padding-left:1rem}
 [data-current="exchange-infrastructure-era"] .exchange-opening>p:last-child{font-size:1.25rem}
}
@media(max-width:600px){
 [data-current="exchange-infrastructure-era"] .hero{padding:2.6rem 6vw}
 [data-current="exchange-infrastructure-era"] .hero h1{font-size:2.65rem}
 [data-current="exchange-infrastructure-era"] .hero .standfirst{font-size:1.05rem}
 [data-current="exchange-infrastructure-era"] .exchange-exhibit>header,[data-current="exchange-infrastructure-era"] .exchange-stage{padding:1.15rem}
 [data-current="exchange-infrastructure-era"] .exchange-pair{grid-template-columns:1fr;gap:.8rem}
 [data-current="exchange-infrastructure-era"] .exchange-controls button{flex-basis:30%;font-size:.8rem}
 [data-current="exchange-infrastructure-era"] .exchange-controls button:last-child{flex-basis:100%}
 [data-current="exchange-infrastructure-era"] .exchange-document{padding:1.2rem}
 [data-current="exchange-infrastructure-era"] .exchange-ledger{padding:.9rem}
 [data-current="exchange-infrastructure-era"] .chapter-footer{gap:.6rem;padding:6px 12px calc(6px + env(safe-area-inset-bottom))}
 [data-current="exchange-infrastructure-era"] .chapter-footer a{flex:1;max-width:50%;min-width:0;min-height:48px;padding:4px;gap:4px}
 [data-current="exchange-infrastructure-era"] .chapter-footer .footer-direction{font-size:.76rem;line-height:1.2}
 [data-current="exchange-infrastructure-era"] .chapter-footer .footer-title{font-size:.82rem;line-height:1.25}
 [data-current="exchange-infrastructure-era"] .chapter-footer .footer-context{display:none}
}
/* Revision 03: documentary records are opt-in to this Current only. */
[data-current="exchange-infrastructure-era"] :is(.exchange-coordination,.exchange-order-record,.exchange-malleability,.exchange-gox-chronology){margin:3rem 0;scroll-margin-top:var(--reading-offset,5rem)}
[data-current="exchange-infrastructure-era"] :is(.exchange-coordination,.exchange-order-record,.exchange-malleability,.exchange-gox-chronology) h3{font-size:clamp(1.65rem,2.6vw,2.4rem);line-height:1.2;margin:.5rem 0 1.5rem}
[data-current="exchange-infrastructure-era"] :is(.exchange-coordination,.exchange-order-record,.exchange-malleability,.exchange-gox-chronology) p{line-height:1.65}
[data-current="exchange-infrastructure-era"] .exchange-coordination{border-block:1px solid #a88a50;padding:1.5rem 0}
[data-current="exchange-infrastructure-era"] .exchange-coordination ol{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1.1rem;margin:2rem 0}
[data-current="exchange-infrastructure-era"] .exchange-coordination li{border-top:2px solid #987641;padding-top:.8rem;position:relative;line-height:1.5}
[data-current="exchange-infrastructure-era"] .exchange-coordination li:not(:last-child)::after{content:'→';position:absolute;right:-1rem;top:-.95rem;color:#76551f;background:#f5f0e5}
[data-current="exchange-infrastructure-era"] .exchange-coordination li strong{display:block;font-size:.95rem;margin-bottom:.7rem}
[data-current="exchange-infrastructure-era"] .exchange-coordination li span{font-size:.85rem}
[data-current="exchange-infrastructure-era"] .exchange-order-record{border:1px solid #a88a50;background:#f0e7d5}
[data-current="exchange-infrastructure-era"] .exchange-order-record header{padding:1.5rem 2rem;background:#102b36;color:#f5edda}
[data-current="exchange-infrastructure-era"] .exchange-order-record header :is(h3,.eyebrow){color:inherit}
[data-current="exchange-infrastructure-era"] .exchange-order-spec{display:flex;gap:1.5rem 3rem;flex-wrap:wrap}
[data-current="exchange-infrastructure-era"] .exchange-order-spec p{margin:0}
[data-current="exchange-infrastructure-era"] .exchange-order-spec strong{display:block;font:1.8rem/1.4 ui-monospace,Consolas,monospace;color:#e2c68e}
[data-current="exchange-infrastructure-era"] .exchange-order-spec span{font-size:.8rem}
[data-current="exchange-infrastructure-era"] .exchange-order-record>p,[data-current="exchange-infrastructure-era"] .exchange-order-record .exchange-order-foot{padding:0 2rem}
[data-current="exchange-infrastructure-era"] .exchange-order-record .exchange-order-foot{padding-bottom:1.5rem}
[data-current="exchange-infrastructure-era"] .exchange-order-record ol{list-style:none;margin:1.5rem 2rem;padding:0;border-top:1px solid #b79f73}
[data-current="exchange-infrastructure-era"] .exchange-order-record li{display:grid;grid-template-columns:2.5rem 1fr;gap:1rem;padding:1rem 0;border-bottom:1px solid #b79f73}
[data-current="exchange-infrastructure-era"] .exchange-order-number{font:1rem/1.8 ui-monospace,Consolas,monospace;color:#76551f}
[data-current="exchange-infrastructure-era"] .exchange-order-record h4{font-size:1.2rem;margin:0}
[data-current="exchange-infrastructure-era"] .exchange-order-record li p{margin:.35rem 0}
[data-current="exchange-infrastructure-era"] .exchange-order-record small{display:block;font-size:.8rem;line-height:1.5;color:#565848}
[data-current="exchange-infrastructure-era"] .exchange-malleability{padding:1.5rem 0;border-block:1px solid #a88a50}
[data-current="exchange-infrastructure-era"] .exchange-id-variants{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
[data-current="exchange-infrastructure-era"] .exchange-id-variants>div{padding:1rem;background:#e9e0cd;border-bottom:2px solid #987641}
[data-current="exchange-infrastructure-era"] .exchange-id-variants strong{display:block;font-size:1rem}
[data-current="exchange-infrastructure-era"] .exchange-id-variants span{display:block;font:.85rem/1.6 ui-monospace,Consolas,monospace;margin-top:.4rem}
[data-current="exchange-infrastructure-era"] .exchange-same-payment{padding:1rem;background:#102b36;color:#f5edda;text-align:center}
[data-current="exchange-infrastructure-era"] .exchange-gox-chronology{border-top:3px solid #987641;padding-top:1.5rem}
[data-current="exchange-infrastructure-era"] .exchange-gox-chronology ol{list-style:none;margin:2rem 0;padding:0}
[data-current="exchange-infrastructure-era"] .exchange-gox-chronology li{display:grid;grid-template-columns:8rem 1fr;gap:1.5rem;border-top:1px solid #baa880;padding:1rem 0}
[data-current="exchange-infrastructure-era"] .exchange-gox-chronology time{font:.85rem/1.7 ui-monospace,Consolas,monospace;color:#76551f}
[data-current="exchange-infrastructure-era"] .exchange-gox-chronology h4{font-size:1.2rem;margin:0}
[data-current="exchange-infrastructure-era"] .exchange-gox-chronology li p{margin:.4rem 0 0}
@media(max-width:1000px){
 [data-current="exchange-infrastructure-era"] .exchange-coordination ol{grid-template-columns:1fr;gap:.75rem;padding-left:1.2rem;border-left:1px solid #987641}
 [data-current="exchange-infrastructure-era"] .exchange-coordination li{border:0;padding:.3rem 0}
 [data-current="exchange-infrastructure-era"] .exchange-coordination li:not(:last-child)::after{content:'↓';left:-1.65rem;right:auto;top:1.5rem}
 [data-current="exchange-infrastructure-era"] .exchange-coordination li strong{margin-bottom:.2rem}
}
@media(max-width:600px){
 [data-current="exchange-infrastructure-era"] .exchange-order-record header,[data-current="exchange-infrastructure-era"] .exchange-order-record>p,[data-current="exchange-infrastructure-era"] .exchange-order-record .exchange-order-foot{padding-inline:1rem}
 [data-current="exchange-infrastructure-era"] .exchange-order-record ol{margin-inline:1rem}
 [data-current="exchange-infrastructure-era"] .exchange-order-record li{grid-template-columns:1.5rem 1fr;gap:.6rem}
 [data-current="exchange-infrastructure-era"] .exchange-gox-chronology li{grid-template-columns:1fr;gap:.3rem}
 [data-current="exchange-infrastructure-era"] .exchange-id-variants{grid-template-columns:1fr;gap:.5rem}
}