@font-face{
  font-family:IBMPlexSans;
  src:url("./fonts/IBMPlexSans-latin.056e4e2459f5.woff2") format("woff2");
  font-display:swap;
}
@font-face{
  font-family:IBMPlexSans;
  src:url("./fonts/IBMPlexSans-latin-ext.ae1d854fefa1.woff2") format("woff2");
  font-display:swap;
  unicode-range:U+0100-024F,U+1E00-1EFF;
}
@font-face{
  font-family:Fraunces;
  src:url("./fonts/fraunces-normal-latin.48282a415ec2.woff2") format("woff2");
  font-display:swap;
}
@font-face{
  font-family:Fraunces;
  src:url("./fonts/fraunces-normal-latin-ext.f120089b9440.woff2") format("woff2");
  font-display:swap;
  unicode-range:U+0100-024F,U+1E00-1EFF;
}
:root{
  color-scheme:light;
  --ink:#10282c;
  --deep:#183f4c;
  --water:#488d91;
  --sand:#e8dfca;
  --signal:#d8a24a;
  --paper:#f4f1e9;
  --rust:#a95737;
  --muted:#52666a;
  --line:#b9c8c3;
  --surface:#fffdf7;
  --shadow:0 18px 50px #10282c18;
  --header-height:4.3rem;
  font-family:IBMPlexSans,Arial,sans-serif;
  font-synthesis:none;
  text-rendering:optimizeLegibility;
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ink:#e8eee9;
  --deep:#10282c;
  --water:#79b6b4;
  --sand:#384644;
  --signal:#e3b75f;
  --paper:#102326;
  --rust:#e07c55;
  --muted:#b1c2bf;
  --line:#405658;
  --surface:#193337;
  --shadow:0 18px 50px #06121470;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height) + 1rem);background:var(--paper);color:var(--ink)}
body{margin:0;background:var(--paper);color:var(--ink);font-size:1rem;line-height:1.65}
img,svg{max-width:100%}
a{color:inherit;text-decoration-thickness:.08em;text-underline-offset:.18em}
a:hover{color:var(--rust)}
button{font:inherit}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:40;background:var(--surface);color:var(--ink);padding:.7rem 1rem}
.skip-link:focus{top:.7rem}
:focus-visible{outline:3px solid var(--signal);outline-offset:4px;border-radius:2px}
.site-header{position:sticky;top:0;z-index:25;height:var(--header-height);display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.45rem clamp(.8rem,3vw,2.7rem);background:color-mix(in srgb,var(--paper) 94%,transparent);border-bottom:1px solid var(--line);backdrop-filter:blur(13px)}
.brand{font-weight:700;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-tools,.language-switch{display:flex;align-items:center;gap:.45rem}
.language-switch{font-size:.88rem}
.language-switch a,.language-switch span{display:inline-flex;align-items:center;justify-content:center;min-height:2.4rem;padding:.25rem .48rem}
.language-switch [aria-current="page"]{background:var(--ink);color:var(--paper);text-decoration:none}
.icon-button{display:inline-flex;align-items:center;justify-content:center;min-width:2.6rem;min-height:2.6rem;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
main{min-width:0}
.hero{min-height:min(780px,calc(100svh - var(--header-height)));display:grid;grid-template-columns:minmax(0,1.15fr) minmax(18rem,.85fr);align-items:center;gap:clamp(1.5rem,5vw,5rem);padding:clamp(3rem,8vh,7rem) max(1.25rem,calc((100vw - 78rem)/2));background:linear-gradient(123deg,var(--deep),var(--ink));color:#f4f1e9}
.hero-copy{max-width:58rem}
.eyebrow,.section-eyebrow,.schematic-kicker{margin:0;color:var(--signal);font-size:.76rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase}
.hero h1{max-width:14ch;margin:.8rem 0 1.2rem;font:clamp(2.8rem,6.3vw,6.7rem)/.98 Fraunces,Georgia,serif;letter-spacing:-.04em}
.hero-deck{max-width:49rem;margin:0 0 2.2rem;color:#e1e9e4;font-size:clamp(1.05rem,1.6vw,1.32rem);line-height:1.55}
.hero h2{max-width:18ch;margin:0 0 .8rem;font:clamp(1.45rem,2.2vw,2.2rem)/1.12 Fraunces,Georgia,serif}
.hero-intro{max-width:42rem;color:#d7e2de}
.hero-intro p{margin:.6rem 0}
.citations{display:flex;flex-wrap:wrap;gap:.4rem;margin:.9rem 0 0}
.source-chip{display:inline-flex;align-items:center;min-height:1.7rem;padding:.1rem .48rem;border:1px solid currentColor;border-radius:2px;font-size:.72rem;font-weight:700;text-decoration:none}
.hero .citations{color:#e9c780}
.stage-photo{margin:0;min-width:0;background:var(--surface);color:var(--ink);border:1px solid color-mix(in srgb,var(--signal) 42%,transparent)}
.stage-photo img{display:block;width:100%;max-height:31vh;min-height:9rem;object-fit:cover;background:var(--sand)}
.lead-photo{align-self:center;transform:translateY(1rem)}
.lead-photo img{max-height:54vh;aspect-ratio:1.53;object-fit:cover}
.stage-photo figcaption{display:grid;gap:.16rem;padding:.55rem .7rem;font-size:.76rem;line-height:1.35}
.photo-caption{font-weight:600}
.photo-credit{font-size:.7rem;color:var(--muted)}
.asset-source{font-size:.69rem}
.reading-rail{position:fixed;z-index:20;right:clamp(.5rem,calc((100vw - 88rem)/2),3rem);top:50%;transform:translateY(-50%);width:2.7rem}
.reading-rail ol{display:grid;gap:.32rem;margin:0;padding:0;list-style:none}
.reading-rail a{position:relative;display:grid;place-items:center;width:2.65rem;height:2.65rem;background:color-mix(in srgb,var(--paper) 85%,transparent);text-decoration:none}
.reading-rail a span{width:.56rem;height:.56rem;border:1px solid var(--water);border-radius:50%;background:var(--paper);transition:transform .2s,background-color .2s}
.reading-rail a[aria-current="location"] span{transform:scale(1.45);background:var(--signal);border-color:var(--ink)}
.reading-rail a b{position:absolute;right:3.05rem;top:50%;width:max-content;max-width:min(16rem,50vw);padding:.35rem .55rem;background:var(--ink);color:var(--paper);font-size:.78rem;font-weight:600;line-height:1.3;opacity:0;visibility:hidden;transform:translate(.3rem,-50%);transition:opacity .16s,transform .16s,visibility .16s}
.reading-rail a:hover b,.reading-rail a:focus b,.reading-rail a:focus-visible b{opacity:1;visibility:visible;transform:translate(0,-50%)}
.reading-rail a:focus-visible{outline-offset:1px}
.story-shell{width:min(84rem,100%);margin:0 auto;padding:0 clamp(1rem,3.3vw,3.4rem) 5rem 1rem}
.beat{padding:clamp(4.5rem,9vh,8rem) 0 4rem;scroll-margin-top:var(--header-height);background:linear-gradient(90deg,transparent 0 12%,color-mix(in srgb,var(--water) 5%,transparent) 12% 100%)}
.beat-heading{width:min(70rem,calc(100% - 1rem));margin:0 auto 2rem;padding:0 clamp(.3rem,2vw,1.5rem)}
.section-eyebrow{color:var(--rust)}
.beat-heading h2{max-width:22ch;margin:.35rem 0 0;font:clamp(2.15rem,4.2vw,4rem)/1.04 Fraunces,Georgia,serif;letter-spacing:-.025em}
.beat-grid{display:grid;grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr);gap:clamp(1.5rem,4vw,4rem);align-items:start;width:min(70rem,calc(100% - 1rem));margin:0 auto}
.beat-stage{position:sticky;top:calc(var(--header-height) + 1rem);align-self:start;min-width:0}
.stage-surface{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:min(70vh,48rem);padding:clamp(.7rem,2vw,1.25rem);overflow:hidden;border:1px solid color-mix(in srgb,var(--ink) 18%,transparent);background:var(--surface);box-shadow:var(--shadow)}
.stage-surface[data-backdrop="tideline"]{background:linear-gradient(160deg,#d6e6df,var(--paper) 54%,#e8dfca)}
.stage-surface[data-backdrop="deep-water"]{background:linear-gradient(160deg,#bdd8d0,var(--deep) 80%);color:#f4f1e9}
.stage-surface[data-backdrop="museum"]{background:linear-gradient(145deg,#f1e5c9,#d0ad71)}
.stage-surface[data-backdrop="archive"]{background:linear-gradient(150deg,#efe7d5,#c8b38c)}
.stage-surface[data-backdrop="paper-record"]{background:linear-gradient(160deg,#dce2dc,#f4f1e9 58%,#d2dedb)}
.stage-surface[data-backdrop="limestone"]{background:linear-gradient(150deg,#1d3639,#526566);color:#f4f1e9}
.stage-surface[data-backdrop="shipping"]{background:linear-gradient(145deg,#dbe9e3,#accac7 58%,#e8dfca)}
.stage-surface[data-backdrop="treaty"]{background:linear-gradient(150deg,#1b3d45,#35656a);color:#f4f1e9}
.stage-surface[data-backdrop="network"]{background:linear-gradient(135deg,#183f4c,#488d91);color:#f4f1e9}
.stage-surface[data-backdrop="throughput"]{background:linear-gradient(155deg,#e8dfca,#f4f1e9 50%,#d6e6df)}
.gate-mark{position:absolute;right:.55rem;top:.55rem;width:3.6rem;height:3.6rem;fill:none;stroke:var(--signal);stroke-width:1.4;opacity:.86;pointer-events:none}
.stage-art{position:relative;z-index:1;display:grid;align-content:center;min-height:0;flex:1;gap:.6rem}
.stage-art [data-stage-frame]{display:none}
.beat-stage[data-active-step="0"] .stage-art [data-stage-frame="0"],.beat-stage[data-active-step="1"] .stage-art [data-stage-frame="1"],.beat-stage[data-active-step="2"] .stage-art [data-stage-frame="2"],.beat-stage[data-active-step="3"] .stage-art [data-stage-frame="3"]{display:block}
.stage-frame-label{position:relative;z-index:2;min-height:2.7rem;margin:.6rem 0 .1rem;font:clamp(1.1rem,1.7vw,1.55rem)/1.1 Fraunces,Georgia,serif}
.stage-frame-label [hidden]{display:none}
.stage-description{position:relative;z-index:2;margin:.1rem 0 0;padding-top:.5rem;border-top:1px solid color-mix(in srgb,currentColor 25%,transparent);font-size:.72rem;line-height:1.4;opacity:.85}
.stage-controls{display:none;align-items:center;gap:.35rem;margin-top:.45rem}
.js-ready .stage-controls{display:flex}
.stage-count{margin-right:auto;font-size:.68rem;font-variant-numeric:tabular-nums}
.stage-controls button{width:2.35rem;height:2.35rem;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-size:.83rem;font-variant-numeric:tabular-nums}
.stage-controls button[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--signal)}
.map-card{margin:0}
.map-card h3,.exchange-frame h3{max-width:22ch;margin:0 0 .45rem;font:1.2rem/1.12 Fraunces,Georgia,serif}
.map-intro{margin:.25rem 0 .55rem;font-size:.69rem;line-height:1.4;max-width:48ch}
.locator-svg{display:block;width:100%;height:auto;max-height:40vh;border:1px solid color-mix(in srgb,var(--ink) 18%,transparent)}
.map-bg{fill:#e5eee7}
:root[data-theme="dark"] .map-bg{fill:#264247}
.shore{fill:none;stroke:#725f45;stroke-width:2.3;stroke-linecap:round;stroke-linejoin:round}
.strait-line{fill:none;stroke:var(--water);stroke-width:5;stroke-linecap:round;stroke-linejoin:round}
.strait-area{fill:#488d9140;stroke:var(--water);stroke-width:2}
.map-marker circle{fill:var(--signal);stroke:var(--ink);stroke-width:3}
.map-marker text{fill:var(--ink);font:700 20px IBMPlexSans,Arial,sans-serif;paint-order:stroke;stroke:var(--paper);stroke-width:5px;stroke-linejoin:round}
.beat-stage[data-active-step="1"] .map-marker--tarifa circle{r:14}
.beat-stage[data-active-step="2"] .map-marker circle{fill:var(--water)}
.map-card figcaption{display:grid;gap:.25rem;margin-top:.4rem}
.map-credit{font-size:.64rem;line-height:1.35;color:var(--muted)}
.map-measure{display:none;gap:.2rem;padding:.7rem .85rem;border-left:3px solid var(--signal);background:var(--ink);color:var(--paper)}
.beat-stage[data-active-step="2"] .map-measure{display:grid}
.map-measure strong{font:1.05rem/1.2 Fraunces,Georgia,serif}
.map-measure span,.map-measure small{font-size:.68rem;line-height:1.35}
.exchange-frame{padding:.9rem;background:#e3ede5;color:#10282c;border:1px solid #ffffff70}
.exchange-frame h3{margin-bottom:.2rem}
.exchange-svg{display:block;width:100%;height:auto}
.upper-water{fill:#488d9170;stroke:#317578;stroke-width:2}
.lower-water{fill:#183f4cbb;stroke:#183f4c;stroke-width:2}
.flow-arrow{fill:none;stroke:#10282c;stroke-width:5;stroke-linecap:round}
.flow-arrow--upper,.flow-arrow--lower{opacity:.38}
.beat-stage[data-active-step="0"] .flow-arrow--upper{opacity:1}
.beat-stage[data-active-step="0"] .flow-arrow--lower{opacity:.6}
.beat-stage[data-active-step="1"] .flow-arrow--upper,.beat-stage[data-active-step="1"] .flow-arrow--lower{opacity:1}
.beat-stage[data-active-step="2"] .flow-arrow{opacity:.45}
.sill{fill:#e8dfca;stroke:#a95737;stroke-width:3}
.diagram-label{font:700 19px IBMPlexSans,Arial,sans-serif;fill:#10282c}
.profile-location,.speed-labels,.profile-caveat{font-size:.69rem;line-height:1.4}
.profile-location{margin:.3rem 0}
.speed-labels{display:none;flex-wrap:wrap;gap:.25rem;list-style:none;margin:.3rem 0;padding:0}
.beat-stage[data-active-step="1"] .speed-labels{display:flex}
.speed-labels li{padding:.28rem .45rem;border:1px solid #819c97;background:#f4f1e9;font-size:.66rem}
.profile-caveat{display:none;margin:.3rem 0}
.beat-stage[data-active-step="2"] .profile-caveat{display:block}
.stage-photo{max-width:100%}
.stage-photo:not(.lead-photo) img{max-height:30vh;object-fit:contain}
.candidate-pair{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.45rem}
.candidate-pair span{display:none;padding:.45rem .65rem;border:1px solid var(--ink);background:var(--surface);color:var(--ink);font:1rem/1.1 Fraunces,Georgia,serif}
.beat-stage[data-active-step="1"] .candidate-pair [data-stage-frame="1"],.beat-stage[data-active-step="2"] .candidate-pair [data-stage-frame="2"]{display:inline-flex}
.candidate-pair small{display:none;flex-basis:100%;font-size:.72rem}
.beat-stage[data-active-step="2"] .candidate-pair small[data-stage-frame="2"]{display:block}
.plan-stage{display:grid;gap:.55rem}
.plan-stage .stage-photo img{max-height:29vh;object-fit:contain}
.history-markers{display:flex;gap:.3rem;flex-wrap:wrap}
.history-markers span{padding:.28rem .42rem;border:1px solid var(--rust);background:var(--surface);color:var(--ink);font-size:.62rem;line-height:1.3}
.trench-schematic{position:relative;padding:.45rem .6rem;background:#f4f1e9;color:#10282c;border:1px solid #b8a785}
.schematic-kicker{color:#a95737;font-size:.58rem;letter-spacing:.12em}
.trench-schematic svg{display:block;width:100%;height:4rem;margin:.1rem 0;fill:none;stroke:#a95737;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter}
.trench-schematic small{display:block;font-size:.61rem;line-height:1.3}
.position-stack{display:grid;gap:.6rem}
.position-slip{padding:.7rem;border:1px solid color-mix(in srgb,var(--ink) 40%,transparent);background:var(--surface);color:var(--ink);transition:transform .2s,border-color .2s}
.beat-stage[data-active-step="0"] .position-slip[data-position="0"],.beat-stage[data-active-step="1"] .position-slip[data-position="1"],.beat-stage[data-active-step="2"] .position-slip[data-position="2"]{transform:translateX(.35rem);border-left:4px solid var(--signal)}
.position-slip time{font-size:.68rem;font-weight:700;color:var(--rust)}
.position-slip h3{margin:.12rem 0 0;font:1rem/1.2 Fraunces,Georgia,serif}
.position-note{margin:.2rem 0 0;font-size:.7rem}
.war-dates{display:flex;gap:.45rem;margin-top:.4rem}
.war-dates span{display:none;flex:1;padding:.45rem;background:var(--ink);color:var(--paper);font-size:.67rem;line-height:1.3}
.war-dates b{display:block;color:var(--signal);font-variant-numeric:tabular-nums}
.beat-stage[data-active-step="1"] .war-dates [data-stage-frame="1"],.beat-stage[data-active-step="2"] .war-dates [data-stage-frame="2"]{display:block}
.measure-lanes{display:grid;gap:.28rem;margin:.5rem 0 0;padding:0;list-style:none}
.measure-lanes li{display:none;align-items:center;gap:.6rem;padding:.35rem .5rem;border-bottom:1px solid color-mix(in srgb,var(--ink) 22%,transparent);font-size:.7rem}
.measure-lanes li span{color:var(--rust);font-weight:700;font-variant-numeric:tabular-nums}
.beat-stage[data-active-step="0"] .measure-lanes [data-stage-frame="0"],.beat-stage[data-active-step="1"] .measure-lanes [data-stage-frame="1"],.beat-stage[data-active-step="2"] .measure-lanes [data-stage-frame="2"],.beat-stage[data-active-step="3"] .measure-lanes [data-stage-frame="3"]{display:flex}
.treaty-sequence,.service-register,.throughput-register{position:relative;z-index:1;padding:clamp(1rem,3vw,2rem);border:1px solid color-mix(in srgb,currentColor 36%,transparent);background:color-mix(in srgb,var(--surface) 22%,transparent)}
.treaty-sequence{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:.4rem}
.treaty-sequence span,.article-two{display:grid;gap:.55rem}
.treaty-sequence b,.article-two b{font:clamp(1.05rem,2vw,1.6rem)/1.05 Fraunces,Georgia,serif;color:var(--signal)}
.treaty-sequence small,.article-two small{font-size:.7rem;line-height:1.35}
.treaty-sequence i{width:2rem;height:1px;background:var(--signal)}
.article-two{grid-column:1/-1;padding-top:1rem;border-top:1px solid color-mix(in srgb,currentColor 34%,transparent)}
.service-register{min-height:15rem;display:flex;flex-direction:column;justify-content:center;gap:.65rem}
.service-register p,.service-register small{margin:0;font-size:.77rem}
.register-stamp{color:var(--signal);letter-spacing:.14em;font-weight:700;text-transform:uppercase}
.register-rule{height:1px;width:82%;background:var(--signal)}
.service-register>b{font:clamp(1.7rem,4vw,3rem)/1 Fraunces,Georgia,serif;letter-spacing:.02em}
.service-register .network-state{font-size:clamp(1rem,2vw,1.4rem);letter-spacing:0}
.throughput-register{min-height:18rem;display:flex;flex-direction:column;justify-content:center}
.throughput-register>span,.throughput-register small,.throughput-register p{font-size:.72rem}
.throughput-register strong{margin:.2rem 0;font:clamp(2rem,5vw,4rem)/1 Fraunces,Georgia,serif;letter-spacing:-.04em;overflow-wrap:anywhere}
.throughput-register>b{color:var(--rust);font-size:1.15rem;letter-spacing:.12em}
.throughput-register p{padding-top:.65rem;border-top:1px solid var(--line)}
.beat-steps{min-width:0}
.story-step{position:relative;min-height:53vh;display:flex;flex-direction:column;justify-content:center;padding:1.4rem clamp(.4rem,1.6vw,1.4rem) 2rem;border-left:1px solid var(--line);scroll-margin-top:calc(var(--header-height) + 1rem)}
.story-step:before{content:"";position:absolute;left:-.32rem;top:2rem;width:.58rem;height:.58rem;background:var(--paper);border:1px solid var(--water);border-radius:50%}
.story-step h3{margin:.15rem 0 .6rem;font:clamp(1.35rem,2vw,1.9rem)/1.13 Fraunces,Georgia,serif}
.story-step p{max-width:44rem;margin:.55rem 0;overflow-wrap:anywhere}
.story-step time{font-size:.75rem;font-weight:700;color:var(--rust)}
.step-sequence{margin-bottom:.65rem;color:var(--rust);font-size:.7rem;font-weight:700;letter-spacing:.12em;font-variant-numeric:tabular-nums}
.chapter-pull{max-width:40rem;margin:1.7rem .5rem 2rem;padding:.5rem 0 .5rem 1rem;border-left:3px solid var(--signal);font:1.3rem/1.3 Fraunces,Georgia,serif}
.treaty-excerpt{display:grid;gap:.65rem;margin:1rem 0;padding:1rem;background:var(--sand);color:var(--ink);border-left:3px solid var(--signal);overflow-wrap:anywhere}
.treaty-excerpt strong{font-size:.78rem;line-height:1.35}
.treaty-excerpt span{font:1rem/1.5 Georgia,serif}
.treaty-excerpt .citations{margin:0}
.sources{margin:5rem auto 0;padding:3rem 1rem;border-top:1px solid var(--line);max-width:70rem}
.sources h2{margin:.1rem 0;font:2rem/1.1 Fraunces,Georgia,serif}
.source-list{padding-left:1.2rem}
.source-list li{margin:.8rem 0;overflow-wrap:anywhere}
.source-links{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.25rem}
.source-links a{font-size:.78rem}
.site-footer{border-top:1px solid var(--line);padding:2rem max(1rem,calc((100vw - 78rem)/2));color:var(--muted);font-size:.84rem}
.footer-inner{display:flex;align-items:flex-start;justify-content:space-between;gap:1.5rem;max-width:78rem;margin:0 auto}
.footer-inner p{margin:.3rem 0}
.footer-actions{display:flex;align-items:center;gap:.75rem}
.share-button{min-height:2.5rem;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:.45rem .85rem;cursor:pointer}
.share-status{max-width:28rem;overflow-wrap:anywhere}
.to-top{position:fixed;right:1rem;bottom:1rem;z-index:18;border:1px solid var(--signal);background:var(--ink);color:var(--paper);padding:.65rem .9rem;cursor:pointer}
.to-top[hidden]{display:none}
@media(max-width:980px){
 .hero{grid-template-columns:minmax(0,1.1fr) minmax(15rem,.9fr);padding-inline:1.2rem}
 .beat-grid{gap:1.2rem}
 .stage-surface{min-height:64vh;padding:.7rem}
 .map-card h3,.exchange-frame h3{font-size:1.05rem}
 .reading-rail{right:.25rem}
}
@media(max-width:700px){
 :root{--header-height:3.8rem}
 .site-header{padding:.35rem .55rem}
 .brand{max-width:8.8rem;font-size:.82rem}
 .language-switch{gap:0}
 .language-switch a,.language-switch span{min-height:2.2rem;padding:.2rem .34rem;font-size:.78rem}
 .icon-button{min-width:2.35rem;min-height:2.35rem}
 .hero{min-height:auto;grid-template-columns:1fr;gap:1.25rem;padding:3.3rem 2.6rem 2.2rem 1rem}
 .hero h1{max-width:12ch;font-size:clamp(2.7rem,12.5vw,4.6rem)}
 .hero-deck{margin-bottom:1.5rem}
 .lead-photo{transform:none}
 .lead-photo img{max-height:32vh}
 .reading-rail{right:.1rem;width:2.05rem}
 .reading-rail ol{gap:.12rem}
 .reading-rail a{width:2rem;height:2.35rem;background:transparent}
 .reading-rail a span{width:.48rem;height:.48rem}
 .reading-rail a b{right:2.05rem;max-width:13rem;font-size:.7rem}
 .story-shell{padding:0 2.15rem 3rem .65rem}
 .beat{padding:3.2rem 0 2rem;background:linear-gradient(90deg,transparent 0 9%,color-mix(in srgb,var(--water) 5%,transparent) 9% 100%)}
 .beat-heading{width:100%;margin-bottom:1rem;padding:0}
 .beat-heading h2{font-size:clamp(1.8rem,8vw,2.65rem)}
 .beat-grid{width:100%;grid-template-columns:1fr;gap:.8rem}
 .beat-stage{position:sticky;top:calc(var(--header-height) + .35rem);z-index:4}
 .stage-surface{min-height:35vh;max-height:41vh;padding:.55rem}
 .stage-art{gap:.3rem}
 .gate-mark{width:2.2rem;height:2.2rem}
 .stage-frame-label{min-height:1.7rem;margin:.35rem 0 .05rem;font-size:1.08rem}
 .stage-description{font-size:.62rem;padding-top:.3rem}
 .stage-controls{margin-top:.25rem}
 .stage-controls button{width:2rem;height:2rem}
 .stage-count{font-size:.62rem}
 .map-card h3,.exchange-frame h3{max-width:24ch;font-size:.93rem}
 .map-intro{display:none}
 .locator-svg{max-height:23vh}
 .map-marker text{font-size:22px}
 .map-card figcaption{margin-top:.15rem}
 .map-credit{font-size:.55rem}
 .map-measure{padding:.35rem .5rem}
 .map-measure strong{font-size:.82rem}
 .map-measure span,.map-measure small{font-size:.57rem}
 .exchange-frame{padding:.45rem}
 .diagram-label{font-size:23px}
 .profile-location,.speed-labels,.profile-caveat{font-size:.58rem}
 .speed-labels li{font-size:.53rem;padding:.17rem .26rem}
 .stage-photo img{min-height:5rem}
 .stage-photo:not(.lead-photo) img{max-height:18vh}
 .stage-photo figcaption{gap:.1rem;padding:.25rem .35rem;font-size:.59rem}
 .photo-credit,.asset-source{font-size:.55rem}
 .plan-stage{grid-template-columns:1fr 1fr;align-items:center;gap:.3rem}
 .plan-stage .stage-photo img{max-height:24vh}
 .plan-stage .stage-photo figcaption{font-size:.51rem;padding:.18rem .25rem}
 .trench-schematic{padding:.28rem .32rem}
 .trench-schematic svg{height:3.1rem}
 .trench-schematic small{font-size:.51rem}
 .position-stack{gap:.25rem}
 .position-slip{padding:.38rem}
 .position-slip h3{font-size:.8rem}
 .position-slip time,.position-note{font-size:.56rem}
 .treaty-sequence,.service-register,.throughput-register{min-height:11rem;padding:.75rem}
 .treaty-sequence b,.article-two b{font-size:1.05rem}
 .treaty-sequence small,.article-two small{font-size:.6rem}
 .service-register>b{font-size:1.8rem}
 .service-register p,.service-register small{font-size:.63rem}
 .throughput-register{min-height:12rem}
 .throughput-register strong{font-size:2.1rem}
 .throughput-register>span,.throughput-register small,.throughput-register p{font-size:.62rem}
 .measure-lanes{display:grid;grid-template-columns:1fr 1fr;gap:.05rem .3rem}
 .measure-lanes li{font-size:.55rem;padding:.18rem .22rem}
 .story-step{min-height:52vh;padding:1.1rem .45rem 1.7rem}
 .story-step p{font-size:.94rem;line-height:1.58}
 .step-sequence{margin-bottom:.4rem}
 .chapter-pull{font-size:1.12rem;margin:.8rem .25rem 1.3rem}
 .treaty-excerpt{padding:.7rem;font-size:.9rem}
 .treaty-excerpt span{font-size:.9rem}
 .footer-inner,.footer-actions{flex-direction:column;align-items:flex-start}
 .footer-inner{padding-right:2.6rem}
 .footer-actions{gap:.3rem}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}
}
@media print{
 .site-header,.reading-rail,.stage-controls,.to-top,.footer-actions{display:none!important}
 .hero{min-height:auto;display:block;background:white;color:var(--ink);padding:1.5rem}
 .beat-grid{display:block}
 .beat-stage{position:static;max-height:none;break-inside:avoid}
 .stage-surface{min-height:0;max-height:none}
 .story-step{min-height:0;break-inside:avoid}
}
