@font-face{font-family:"Fraunces";src:url("fonts/Fraunces-display.woff2") format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Atkinson";src:url("fonts/AtkinsonHyperlegibleNext.woff2") format("woff2");font-weight:100 900;font-display:swap}

/* Printed paper and iron-gall ink by day, a gaslit street by night. Blue is water; the one red
   is the pump. Snow's own map is black on white, so the deaths are always drawn in ink. */
:root{
  --paper:#f5f1e8; --surface:#ece5d6; --surface-2:#e1d8c5;
  --ink:#16140f; --ink-2:#34302a; --ink-3:#4a453c;
  --rule:#d3c9b5; --rule-strong:#9d927d;
  --water:#1f4f8a; --water-2:#2c64a6; --water-soft:#c9d8ea;
  --pump:#8a1b15; --pump-2:#a4231c;
  --death:#16140f;
  --card:rgba(245,241,232,.96);
  --focus:#1f4f8a;
  --shadow:0 1px 2px rgba(22,20,15,.1),0 14px 36px rgba(22,20,15,.12);
  --map-filter:none;
  --maxw:76rem; --measure:36rem; --bar:3.25rem; --r:12px;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --paper:#0e1013; --surface:#171a1f; --surface-2:#20242b;
  --ink:#f0ebe1; --ink-2:#d5cfc3; --ink-3:#bdb6a8;
  --rule:#2d3239; --rule-strong:#555c66;
  --water:#8fbaf0; --water-2:#a9cbf5; --water-soft:#20344d;
  --pump:#ff8b7a; --pump-2:#ffa293;
  --death:#f0ebe1;
  --card:rgba(14,16,19,.94);
  --focus:#a9cbf5;
  --shadow:0 1px 2px rgba(0,0,0,.5),0 14px 36px rgba(0,0,0,.45);
  --map-filter:invert(.93) sepia(.12) hue-rotate(180deg) brightness(.95);
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#0e1013; --surface:#171a1f; --surface-2:#20242b;
    --ink:#f0ebe1; --ink-2:#d5cfc3; --ink-3:#bdb6a8;
    --rule:#2d3239; --rule-strong:#555c66;
    --water:#8fbaf0; --water-2:#a9cbf5; --water-soft:#20344d;
    --pump:#ff8b7a; --pump-2:#ffa293;
    --death:#f0ebe1;
    --card:rgba(14,16,19,.94);
    --focus:#a9cbf5;
    --shadow:0 1px 2px rgba(0,0,0,.5),0 14px 36px rgba(0,0,0,.45);
    --map-filter:invert(.93) sepia(.12) hue-rotate(180deg) brightness(.95);
    color-scheme:dark;
  }
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--bar) + .5rem)}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Atkinson",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:clamp(1rem,.96rem + .2vw,1.1rem);line-height:1.62;
  overflow-x:clip;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--water);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{color:var(--water-2)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:3px}
h1,h2,h3{font-family:"Fraunces",Georgia,serif;font-weight:560;line-height:1.12;letter-spacing:-.01em;margin:0 0 .6em;text-wrap:balance}
h2{font-size:clamp(1.75rem,1.3rem + 1.9vw,2.8rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
blockquote{margin:1.4em 0;padding:0 0 0 1.1rem;border-left:3px solid var(--water)}
blockquote p{font-family:"Fraunces",Georgia,serif;font-size:1.14em;line-height:1.45;font-style:italic;margin:0 0 .35em}
blockquote cite{font-style:normal;font-size:.85rem;color:var(--ink-3);display:block}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.anchor{color:inherit;text-decoration:none}
.anchor:hover{color:var(--water)}
.nw{white-space:nowrap}
.num{font-variant-numeric:tabular-nums}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:.6rem;
  min-height:var(--bar);padding:0 clamp(.75rem,2vw,1.4rem);line-height:1;
  background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.topbar .home{font-family:"Fraunces",Georgia,serif;font-weight:600;color:var(--ink);text-decoration:none;white-space:nowrap;font-size:.95rem;display:flex;align-items:center;min-height:2.75rem}
.topnav{display:flex;gap:.85rem;overflow-x:auto;scrollbar-width:none;min-width:0;flex:0 1 auto}
.topnav::-webkit-scrollbar{display:none}
.topnav a{color:var(--ink-2);text-decoration:none;white-space:nowrap;font-size:.9rem;display:flex;align-items:center;min-height:2.75rem}
.topnav a:hover,.topnav a[aria-current="true"]{color:var(--water)}
.topnav a[aria-current="true"]{text-decoration:underline;text-underline-offset:.35em}
.spacer{flex:1 1 auto}
.chip{color:var(--ink-2);text-decoration:none;font-size:.85rem;white-space:nowrap;border:1px solid var(--rule);border-radius:999px;padding:.25rem .6rem;display:flex;align-items:center;min-height:2.2rem}
.chip:hover{border-color:var(--water)}
.icon-btn{display:grid;place-items:center;width:2.1rem;height:2.1rem;flex:0 0 auto;border:1px solid var(--rule);border-radius:999px;background:transparent;color:var(--ink-2);cursor:pointer;position:relative}
.icon-btn::after{content:"";position:absolute;inset:-.4rem}
.icon-btn svg{display:block}
.icon-btn svg[hidden]{display:none}
.icon-btn:hover{color:var(--water);border-color:var(--water)}
@media (max-width:40rem){.topnav{display:none}}

/* ---------- reading rail ---------- */
.rail{display:none}
@media (min-width:88rem){
  .rail{display:flex;flex-direction:column;gap:.55rem;position:fixed;right:1.1rem;top:50%;transform:translateY(-50%);z-index:30}
  .rail a{display:flex;align-items:center;justify-content:flex-end;gap:.5rem;min-height:1.4rem;text-decoration:none;color:var(--ink-2);font-size:.78rem}
  .rail a span{opacity:0;transition:opacity .2s;background:var(--paper);padding:.1rem .35rem;border-radius:4px;white-space:nowrap}
  .rail a:hover span,.rail a:focus-visible span{opacity:1}
  .rail a i{display:block;width:6px;height:6px;border-radius:50%;background:var(--rule-strong);transition:transform .2s,background .2s}
  .rail a[aria-current="true"] i{background:var(--pump);transform:scale(1.5)}
}

/* ---------- the opening: Snow's sheet, zooming to the pump ---------- */
.hero{position:relative;height:300svh;background:var(--paper)}
.hero-stage{position:sticky;top:var(--bar);height:calc(100svh - var(--bar));overflow:hidden;isolation:isolate}
.zoom{position:absolute;inset:0;background:#fbfaf6;filter:var(--map-filter)}
.zoom canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.zoom-still{width:100%;height:100%;object-fit:cover;object-position:56% 46%}
.zoom.live .zoom-still{visibility:hidden}
.hero-text{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:clamp(1.2rem,4vw,3rem) clamp(1rem,4vw,3rem) clamp(1.4rem,5vh,3rem);
  background:linear-gradient(180deg,transparent 0,color-mix(in srgb,var(--paper) 94%,transparent) 2.5rem,var(--paper) 5rem);
  transition:opacity .5s,transform .5s}
.hero-text > *{max-width:46rem}
.hero.zoomed .hero-text{opacity:0;transform:translateY(1.5rem);pointer-events:none}
.kicker{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--pump);font-weight:700;margin:0 0 .8rem}
.hero h1{font-size:clamp(2.15rem,1.3rem + 3.9vw,4.6rem);font-weight:540;margin:0 0 .45em;max-width:17ch}
.deck{font-size:clamp(1.04rem,.95rem + .45vw,1.3rem);color:var(--ink-2);margin:0 0 1rem;max-width:40rem}
.cue{display:inline-flex;align-items:center;gap:.5rem;color:var(--water);text-decoration:none;font-size:.95rem;min-height:2.75rem;font-weight:600}
.cue svg{animation:bob 1.8s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(4px)}}
.beats{position:absolute;left:0;right:0;bottom:clamp(1.2rem,6vh,3rem);z-index:2;display:grid;justify-items:center;pointer-events:none;padding:0 1rem}
.beat{grid-area:1/1;max-width:30rem;margin:0;padding:.8rem 1.1rem;background:var(--card);color:var(--ink);border:1px solid var(--rule);border-radius:var(--r);
  box-shadow:var(--shadow);font-family:"Fraunces",Georgia,serif;font-size:clamp(1.1rem,1rem + .5vw,1.4rem);line-height:1.35;text-align:center;
  opacity:0;transform:translateY(.8rem);transition:opacity .45s,transform .45s}
.beat.on{opacity:1;transform:none}
html:not(.js) .beats{display:none}
.hero-cr{position:absolute;right:.7rem;top:.5rem;z-index:2;font-size:.72rem;color:var(--ink-2);background:color-mix(in srgb,var(--paper) 85%,transparent);padding:.1rem .45rem;border-radius:4px;margin:0}
.hero-cr a{color:inherit}
html:not(.js) .hero{height:auto}
html:not(.js) .hero-stage{position:relative;height:auto;top:0}
html:not(.js) .zoom{position:relative;height:70svh}
html:not(.js) .hero-text{position:relative;background:var(--paper)}

/* ---------- blocks ---------- */
.block{max-width:var(--maxw);margin:0 auto;padding:clamp(3.5rem,8vw,7rem) clamp(1rem,4vw,3rem)}
.block > p,.lede,.after-text{max-width:var(--measure)}
.lede{font-size:1.07em}
.eyebrow{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--pump);font-weight:700;margin:0 0 .6rem}
.block h2{max-width:22ch}
.two{display:grid;gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.two + .two{margin-top:clamp(2rem,5vw,3.5rem)}
.two > div > p{max-width:var(--measure)}
@media (min-width:60rem){.two{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}.two.rev{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}}
.fig{margin:0}
.fig .frame{background:var(--surface);border-radius:8px;overflow:hidden}
.fig img{width:100%;height:auto}
.fig.portrait{max-width:17rem}
.fig.tall{max-width:30rem}
figcaption{font-size:.87rem;color:var(--ink-3);margin-top:.55rem;line-height:1.45}
figcaption .cr{display:block;font-size:.78rem;margin-top:.2rem}
figcaption a{color:var(--ink-2)}
.chart-h{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--ink-2);margin:0 0 .6rem}

/* ---------- the curve ---------- */
.curve-block{max-width:68rem}
.chart{margin:2rem 0 1rem}
.curve{width:100%;height:auto;display:block;overflow:visible}
.curve .grid{stroke:var(--rule);stroke-width:1}
.curve .ax{fill:var(--ink-3);font-size:14px;font-family:Atkinson,system-ui,sans-serif}
.curve .ax.mo{font-weight:700}
.curve .before{fill:var(--water-soft);opacity:.55}
.curve .fill{fill:var(--ink)}
.curve .bar.after .fill{fill:var(--rule-strong)}
.curve .bar.handle .fill{fill:var(--pump)}
.curve .bar.sel .fill{fill:var(--water)}
.curve .hit{fill:transparent;cursor:pointer}
.curve .hline{stroke:var(--pump);stroke-width:2;stroke-dasharray:4 4}
.curve .pumpmark circle{fill:var(--paper);stroke:var(--pump);stroke-width:3}
.curve .ann{fill:var(--ink);font-size:17px;font-weight:700;font-family:Atkinson,system-ui,sans-serif}
.curve .ann.hann{fill:var(--pump)}
.curve .ann.sub{font-weight:400;font-size:15px;fill:var(--ink-2)}
.readout{font-size:.95rem;color:var(--ink-2);min-height:1.6em;margin:.4rem 0 0}
html:not(.js) .readout{display:none}
.curve.narrow{display:none}
.curve.narrow .ann{font-size:18px}.curve.narrow .ann.sub{font-size:16px}.curve.narrow .ax{font-size:15px}
.chart-note{display:none;font-size:.95rem;color:var(--ink-2);margin:.3rem 0 0}
@media (max-width:40rem){.curve.wide{display:none}.curve.narrow{display:block}.chart-note{display:block}}
details.data{margin:0 0 2rem;max-width:30rem}
details.data summary{cursor:pointer;color:var(--water);font-weight:600;min-height:2.75rem;display:flex;align-items:center}
.tablewrap{max-height:22rem;overflow:auto;border:1px solid var(--rule);border-radius:8px}
table{border-collapse:collapse;width:100%;font-size:.9rem;font-variant-numeric:tabular-nums}
th,td{padding:.35rem .7rem;text-align:right;border-bottom:1px solid var(--rule)}
th[scope=row],thead th:first-child{text-align:left;font-weight:400}
thead th{position:sticky;top:0;background:var(--surface);font-weight:700}
tr.tot th,tr.tot td{font-weight:700}

/* ---------- the map story ---------- */
.story{position:relative;display:grid;background:var(--paper)}
.stage-wrap{grid-area:1/1;position:sticky;top:var(--bar);height:calc(100svh - var(--bar));min-height:20rem;z-index:0}
.stage{position:absolute;inset:0;overflow:hidden;background:var(--paper)}
.stage canvas{display:block;position:absolute;inset:0;width:100%;height:100%}
.stage.explore canvas{cursor:crosshair}
.stage-static{position:absolute;inset:0;display:grid;place-items:center;padding:1rem;background:#fbfaf6}
.stage-static img{width:100%;height:100%;object-fit:contain;filter:var(--map-filter)}
.stage.ready .stage-static{display:none}
.stage:not(.ready) canvas{visibility:hidden}
.mapkey{position:absolute;right:.8rem;top:.8rem;z-index:3;list-style:none;margin:0;padding:.5rem .7rem;font-size:.78rem;color:var(--ink-2);
  background:color-mix(in srgb,var(--paper) 90%,transparent);border:1px solid var(--rule);border-radius:10px;display:grid;gap:.2rem}
.mapkey li{display:flex;align-items:center;gap:.45rem}
.mapkey i{display:inline-block;flex:0 0 auto}
.k-death{width:12px;height:3px;background:var(--death)}
.k-bs{width:11px;height:11px;border-radius:50%;border:3px solid var(--pump)}
.k-pump{width:9px;height:9px;border-radius:50%;border:2px solid var(--ink)}
.k-near{width:14px;height:4px;border-radius:2px;background:var(--water)}
.k-far{width:14px;height:4px;border-radius:2px;background:var(--rule-strong)}
.mapkey .walk-only{display:none}
.stage.walk .mapkey .walk-only{display:flex}
.stage:not(.ready) .mapkey{display:none}

.prose{grid-area:1/1;position:relative;z-index:2;pointer-events:none;padding:40vh 0 30vh}
.chapter{min-height:115svh;padding:0 clamp(1rem,4vw,3rem);display:flex;align-items:flex-start}
.chapter:last-child{min-height:100svh}
.card{pointer-events:auto;max-width:27rem;background:var(--card);color:var(--ink);border:1px solid var(--rule);border-radius:var(--r);padding:1.2rem 1.35rem 1.1rem;box-shadow:var(--shadow);
  transition:opacity .5s}
.js .chapter:not(.on) .card{opacity:.8}
.stamp{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--pump);margin:0 0 .5rem;font-weight:700}
.card h3{font-size:clamp(1.35rem,1.15rem + .9vw,1.75rem);margin-bottom:.5em}
.card p{font-size:.97rem}
.card p:last-child{margin-bottom:0}
.route{font-weight:700;color:var(--ink);border-top:1px solid var(--rule);padding-top:.7rem;margin-top:.8rem}
html:not(.js) .route{display:none}
.stage.failed .mapkey{display:none}
@media (max-width:62rem){
  .prose{padding:70svh 0 20svh}
  .chapter{align-items:flex-end;min-height:125svh}
  .card{max-width:34rem;margin:0 auto}
  .mapkey{top:auto;bottom:auto;top:.6rem;right:.6rem;font-size:.72rem}
}
.chapter#strada-ta .card{pointer-events:auto}

/* ---------- the clergyman and the well ---------- */
.section{width:100%;max-width:36rem;height:auto;display:block;margin:.2rem 0 .4rem}
.section .earth{fill:var(--surface)}
.section .house{fill:var(--surface-2);stroke:var(--ink-3)}
.section .areaw{fill:var(--paper);stroke:var(--ink-3)}
.section .ground{stroke:var(--ink-2);stroke-width:2}
.section .cess{fill:#5b4630}
.section .seep{fill:none;stroke:#7a5c3c;stroke-width:3;stroke-dasharray:2 7;stroke-linecap:round;opacity:.9}
.section .drain{fill:var(--ink-3)}
.section .wellwall{fill:#9b7b62}
.section .wellshaft{fill:var(--paper)}
.section .water{fill:var(--water);opacity:.85}
.section .pumpbody{fill:var(--ink)}
.section .pumphandle-gone{stroke:var(--pump);stroke-width:4;stroke-linecap:round;stroke-dasharray:3 5}
.section .sewer{fill:none;stroke:var(--ink-3);stroke-width:3}
.section .lbl{fill:var(--ink);font-size:22px;font-family:Atkinson,system-ui,sans-serif}
.section .lbl.sm{font-size:19px;fill:var(--ink-2)}
.section .lbl.inv{fill:#fff}
.section .lbl.xs{font-size:16px;font-weight:700}
.section .dim,.section .dimx{stroke:var(--pump);stroke-width:1.6}
.section .dimx{stroke-dasharray:3 4;stroke-width:1.2}
.section .dimt{fill:var(--pump);font-size:19px;font-weight:700;font-family:Atkinson,system-ui,sans-serif}
.section .arrow{stroke:var(--ink-2);stroke-width:1.4;fill:none}
:root[data-theme="dark"] .section .lbl.inv{fill:#0e1013}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .section .lbl.inv{fill:#0e1013}}
:root[data-theme="dark"] .section .cess{fill:#c4a680}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .section .cess{fill:#c4a680}}

/* ---------- the verdict ---------- */
.hbars{margin:1.8rem 0 0;max-width:30rem}
.hb{display:grid;grid-template-columns:10.5rem 1fr 2.6rem;gap:.7rem;align-items:center;margin:.35rem 0;font-size:.92rem}
.hb-t{height:.9rem;background:var(--surface);border-radius:3px;overflow:hidden}
.hb-f{display:block;height:100%;background:var(--ink)}
.hb b{text-align:right}
.w100{width:100%}.w10{width:10%}.w15{width:15%}.w5{width:5%}
@media (max-width:30rem){.hb{grid-template-columns:1fr 2.6rem}.hb-t{grid-column:1/-1;grid-row:2}}

/* ---------- sources, footer ---------- */
.sources{max-width:60rem}
.srcs{padding-left:1.1rem;font-size:.92rem}
.srcs li{margin-bottom:.45rem;overflow-wrap:anywhere}
.method{font-size:.95rem;color:var(--ink-2);max-width:46rem}
.foot{border-top:1px solid var(--rule);padding:2rem clamp(1rem,4vw,3rem) 3rem;font-size:.9rem;color:var(--ink-3);max-width:var(--maxw);margin:0 auto}
.foot a{color:var(--ink-2)}
.nf main{max-width:40rem;margin:20vh auto;padding:0 1rem}
section[id]{scroll-margin-top:calc(var(--bar) + .5rem)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .js .chapter:not(.on) .card{opacity:1}
}
@media print{.rail,.topbar,.stage-wrap,.beats{display:none}.prose{padding:0}.card{box-shadow:none;opacity:1 !important}.hero{height:auto}.hero-stage{position:relative}}
html:not(.js) #strada-ta{display:none}