@font-face{font-family:"Fraunces";src:url("fonts/fraunces-latin-ext-wght-normal.woff2?v=a21ecfbf41") format("woff2");font-weight:100 900;font-style:normal;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF}
@font-face{font-family:"Fraunces";src:url("fonts/fraunces-latin-ext-wght-italic.woff2?v=877bcc2fd1") format("woff2");font-weight:100 900;font-style:italic;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF}
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-ext-wght-normal.woff2?v=ac6fa9ed53") format("woff2");font-weight:200 800;font-style:normal;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF}
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-ext-wght-italic.woff2?v=d8c263970d") format("woff2");font-weight:200 800;font-style:italic;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF}
@font-face{font-family:"Inter";src:url("fonts/inter-latin-ext-wght-normal.woff2?v=34b9c504ca") format("woff2");font-weight:100 900;font-style:normal;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF}
@font-face{font-family:"Fraunces";src:url("fonts/fraunces-latin-wght-normal.woff2?v=7f9d191d99") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Fraunces";src:url("fonts/fraunces-latin-wght-italic.woff2?v=bceec2ef4d") format("woff2");font-weight:100 900;font-style:italic;font-display:swap}
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-wght-normal.woff2?v=62981321d9") format("woff2");font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"Newsreader";src:url("fonts/newsreader-latin-wght-italic.woff2?v=48bc8861b9") format("woff2");font-weight:200 800;font-style:italic;font-display:swap}
@font-face{font-family:"Inter";src:url("fonts/inter-latin-wght-normal.woff2?v=3100e775e8") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}

:root{
  --story-height:100svh;
  --bar:3rem;
  --bg:#f3f6f9; --bg-2:#e8eef4; --ink:#0f1a26; --muted:#4b5b6d; --line:rgba(15,26,38,.16); --line-soft:rgba(15,26,38,.09);
  --accent:#0a6aa6; --accent-ink:#ffffff; --warm:#b4570a; --card:rgba(243,246,249,.92); --card-edge:rgba(15,26,38,.1);
  --ice-top:#eef4f8; --ice-mid:#a9c7dc; --ice-deep:#2f5a7a; --ice-abyss:#10273a; --dust:#7b6a55; --rock:#3a3330;
  --glow:#3fb6ff; --glow-soft:rgba(63,182,255,.35); --sensor:#0f1a26; --string:rgba(15,26,38,.28);
  --sky-bg:#e7eef5; --sky-earth:rgba(10,106,166,.12); --sky-grid:rgba(15,26,38,.12); --mw:rgba(180,87,10,.32);
  --serif:"Newsreader",Georgia,"Times New Roman",serif; --display:"Fraunces",Georgia,serif; --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#04070d; --bg-2:#0a121d; --ink:#e3ecf5; --muted:#93a5b9; --line:rgba(227,236,245,.18); --line-soft:rgba(227,236,245,.09);
  --accent:#5cc6ff; --accent-ink:#04070d; --warm:#ffb45a; --card:rgba(6,12,20,.86); --card-edge:rgba(227,236,245,.1);
  --ice-top:#c7d8e6; --ice-mid:#2c5574; --ice-deep:#0f2a40; --ice-abyss:#050d17; --dust:#5d5143; --rock:#1d1917;
  --glow:#5cc6ff; --glow-soft:rgba(92,198,255,.35); --sensor:#c9dbea; --string:rgba(201,219,234,.22);
  --sky-bg:#07101b; --sky-earth:rgba(92,198,255,.10); --sky-grid:rgba(227,236,245,.10); --mw:rgba(255,180,90,.28);
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#04070d; --bg-2:#0a121d; --ink:#e3ecf5; --muted:#93a5b9; --line:rgba(227,236,245,.18); --line-soft:rgba(227,236,245,.09);
    --accent:#5cc6ff; --accent-ink:#04070d; --warm:#ffb45a; --card:rgba(6,12,20,.86); --card-edge:rgba(227,236,245,.1);
    --ice-top:#c7d8e6; --ice-mid:#2c5574; --ice-deep:#0f2a40; --ice-abyss:#050d17; --dust:#5d5143; --rock:#1d1917;
    --glow:#5cc6ff; --glow-soft:rgba(92,198,255,.35); --sensor:#c9dbea; --string:rgba(201,219,234,.22);
    --sky-bg:#07101b; --sky-earth:rgba(92,198,255,.10); --sky-grid:rgba(227,236,245,.10); --mw:rgba(255,180,90,.28);
    color-scheme:dark;
  }
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--bar) + var(--browser-safe-top,env(safe-area-inset-top)) + .5rem)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.1875rem/1.6 var(--serif);font-optical-sizing:auto;overflow-x:hidden}
a{color:var(--accent);text-underline-offset:.16em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;z-index:100;background:var(--ink);color:var(--bg);padding:.6rem 1rem;font:600 .9rem var(--sans)}
.skip:focus{left:1rem;top:.5rem}
section[id]{scroll-margin-top:calc(var(--bar) + var(--browser-safe-top,env(safe-area-inset-top)) + .5rem)}

/* topbar */
.topbar{position:fixed;inset:0 0 auto 0;z-index:50;height:calc(var(--bar) + var(--browser-safe-top,env(safe-area-inset-top)));padding:var(--browser-safe-top,env(safe-area-inset-top)) max(1rem,env(safe-area-inset-right)) 0 max(1rem,env(safe-area-inset-left));display:flex;align-items:center;gap:1rem;font:500 .84rem/1 var(--sans);background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:blur(12px) saturate(1.3);backdrop-filter:blur(12px) saturate(1.3);border-bottom:1px solid var(--line-soft);white-space:nowrap}
.topbar a{color:var(--ink);text-decoration:none}
.home{font-weight:650;letter-spacing:.01em;flex:none}
.topnav{display:flex;gap:1.1rem;overflow-x:auto;scrollbar-width:none;min-width:0}
@media (max-width:760px){.topnav{mask-image:linear-gradient(90deg,#000 85%,transparent)}}
.topnav::-webkit-scrollbar{display:none}
.topnav a{color:var(--muted);padding:.9rem 0;flex:none}
.topnav a:hover,.topnav a[aria-current="true"]{color:var(--ink)}
.topnav a[aria-current="true"]{box-shadow:inset 0 -2px 0 var(--accent)}
.spacer{flex:1}
.icon-btn{flex:none;display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;padding:0}
.icon-btn:hover{border-color:var(--ink)}
.icon-btn svg{display:block}
.icon-btn svg[hidden]{display:none}
@media (pointer:coarse){.icon-btn{width:44px;height:44px}}

/* rail */
.rail{position:fixed;right:1.1rem;top:50%;transform:translateY(-50%);z-index:40;display:none;flex-direction:column;gap:.15rem;font:500 .72rem/1 var(--sans)}
.rail a{position:relative;display:flex;align-items:center;justify-content:flex-end;gap:.55rem;padding:.38rem 0;color:var(--muted);text-decoration:none;flex-direction:row-reverse}
.rail .mark{flex:none;width:7px;height:7px;border-radius:50%;border:1px solid var(--muted);transition:background .2s,transform .2s}
.rail .lbl{position:absolute;right:1.4rem;opacity:0;transition:opacity .2s;pointer-events:none;background:var(--card);padding:.25rem .45rem;border-radius:4px;white-space:nowrap}
.rail a:hover .lbl,.rail a:focus-visible .lbl{opacity:1}
.rail a[aria-current="true"] .mark{background:var(--accent);border-color:var(--accent);transform:scale(1.35)}
@media (min-width:1180px){.rail{display:flex}}

/* hero */
.hero{position:relative;min-height:var(--story-height);display:grid;align-items:end;padding:calc(var(--bar) + 4rem) max(1.25rem,env(safe-area-inset-left)) 5.5rem;overflow:hidden;isolation:isolate;background:radial-gradient(120% 80% at 70% 0%,color-mix(in srgb,var(--glow) 14%,var(--bg)) 0%,var(--bg) 60%)}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.hero-inner{max-width:46rem;margin:0 auto 0 max(0px,calc((100vw - 68rem)/2))}
.kicker{font:600 .78rem/1.2 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 1rem}
h1{font:340 clamp(2.9rem,9vw,6.4rem)/.95 var(--display);font-variation-settings:"SOFT" 50,"WONK" 0;letter-spacing:-.025em;margin:0 0 1.5rem;text-wrap:balance}
.deck{font-size:clamp(1.15rem,2.2vw,1.38rem);line-height:1.5;max-width:40rem;margin:0 0 2rem;color:var(--ink)}
.counter{display:grid;gap:.25rem;padding:1rem 1.15rem;border-left:2px solid var(--accent);background:color-mix(in srgb,var(--bg) 70%,transparent);max-width:30rem}
.counter-label{font:600 .74rem/1.3 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.counter-num{font:400 clamp(1.9rem,5vw,2.8rem)/1.1 var(--display);font-variant-numeric:tabular-nums;color:var(--accent);letter-spacing:-.01em}
.counter-note{font:400 .8rem/1.4 var(--sans);color:var(--muted)}
.byline{font:500 .8rem var(--sans);color:var(--muted);margin:1.5rem 0 0}
.scroll-cue{position:absolute;left:50%;bottom:1.25rem;transform:translateX(-50%);display:grid;place-items:center;width:44px;height:44px;border-radius:50%;color:var(--muted);border:1px solid var(--line)}
@media (prefers-reduced-motion:no-preference){.scroll-cue svg{animation:cue 2.4s ease-in-out infinite}}
@keyframes cue{50%{transform:translateY(4px)}}

/* share */
.share{max-width:40rem;margin:0 auto;padding:1.25rem 1.25rem 0}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;scroll-margin-top:4.75rem}
.share-label{font:500 .8rem var(--sans);color:var(--muted);margin-right:.25rem}
.sh{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line-soft);background:transparent;color:var(--ink);cursor:pointer;padding:0}
.sh:hover,.sh:focus-visible{color:var(--accent);border-color:var(--accent)}
.sh[hidden]{display:none}
@media (pointer:coarse){.sh{width:44px;height:44px}}
.share-status{font:500 .8rem var(--sans);color:var(--muted);min-height:1em}

/* prose */
article{display:block}
.prose{max-width:40rem;margin:0 auto;padding:0 1.25rem}
section.prose{padding-top:5rem;padding-bottom:1rem}
h2{font:400 clamp(1.75rem,4.2vw,2.5rem)/1.12 var(--display);letter-spacing:-.015em;margin:0 0 1.25rem;text-wrap:balance;position:relative}
.anchor{position:absolute;left:-1.35em;top:0;display:inline-grid;place-items:center;width:1.2em;min-height:44px;color:var(--muted);text-decoration:none;opacity:0;font-weight:300}
h2:hover .anchor,.anchor:focus-visible{opacity:1}
@media (max-width:760px){.anchor{position:static;opacity:.5;width:auto;min-height:0;margin-right:.35em;font-size:.8em}}
.prose p{margin:0 0 1.15rem}
em{font-style:italic}
cite{font-style:italic}
blockquote{margin:2rem 0;padding:0 0 0 1.25rem;border-left:2px solid var(--warm)}
blockquote p{font:400 1.45rem/1.35 var(--display);font-style:italic;margin:0 0 .5rem}
blockquote footer{font:500 .82rem var(--sans);color:var(--muted)}
.coda{font:400 1.35rem/1.45 var(--display);margin-top:2rem!important;padding-top:1.5rem;border-top:1px solid var(--line)}

/* scrolly scenes */
.scrolly{position:relative;margin-top:4rem}
.stage{position:sticky;top:calc(var(--bar) + var(--browser-safe-top,env(safe-area-inset-top)));height:calc(var(--story-height) - var(--bar) - var(--browser-safe-top,env(safe-area-inset-top)));overflow:hidden}
.stage canvas{display:block;width:100%;height:100%}
.steps{position:relative;margin-top:calc(-1 * (var(--story-height) - var(--bar) - var(--browser-safe-top,env(safe-area-inset-top))));pointer-events:none;padding:0 1.25rem calc(var(--story-height) * 0.4)}
.step{pointer-events:auto;max-width:25rem;margin:0 0 calc(var(--story-height) * 0.7);padding:1.15rem 1.3rem;background:var(--card);border:1px solid var(--card-edge);border-radius:10px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);font-size:1.06rem;line-height:1.55;scroll-margin-top:calc(var(--story-height) * 0.2)}
.step p{margin:0}
.step p+p{margin-top:.6rem}
.step-k{font:600 .76rem/1.3 var(--sans)!important;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:.45rem!important}
.step-head{margin-top:calc(var(--story-height) * 0.12)}
.step-head h2{font-size:clamp(1.6rem,3.6vw,2.2rem)}
@media (min-width:900px){.steps{padding-left:max(2rem,calc((100vw - 68rem)/2))}.step{max-width:24rem}}
@media (max-width:899px){.step{margin-left:auto;margin-right:auto}}

.depth-gauge{position:absolute;right:max(1.25rem,calc((100vw - 68rem)/2));top:1.25rem;display:grid;justify-items:end;gap:.1rem;font-family:var(--sans);color:#eaf3fb;text-shadow:0 1px 8px rgba(0,0,0,.45);pointer-events:none;background:rgba(4,10,18,.42);padding:.7rem .9rem;border-radius:10px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.dg-num{font:300 clamp(2.4rem,7vw,4.4rem)/1 var(--display);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.dg-unit{font:600 .7rem/1.2 var(--sans);letter-spacing:.1em;text-transform:uppercase;opacity:.8}
.dg-age{font:500 .82rem/1.3 var(--sans);opacity:.92;margin-top:.35rem;text-align:right;max-width:13rem}
@media (min-width:1180px){.depth-gauge{right:5.5rem}}
.scale-tag{position:absolute;right:max(1.25rem,calc((100vw - 68rem)/2));bottom:1.25rem;font:500 .8rem/1.3 var(--sans);color:var(--muted);text-align:right;max-width:16rem;pointer-events:none}
@media (min-width:1180px){.scale-tag{right:5.5rem}}
@media (max-width:899px){.scale-tag{top:.75rem;bottom:auto;left:1rem;right:auto;text-align:left}}

/* wide figure sections */
section.wide{padding-top:5rem}
.array-fig,.sky-fig{max-width:68rem;margin:1.5rem auto 0;padding:0 1.25rem}
.array-wrap{position:relative;aspect-ratio:16/10;max-height:calc(var(--story-height) * 0.78);width:100%;border-radius:14px;overflow:hidden;background:radial-gradient(90% 90% at 50% 40%,color-mix(in srgb,var(--glow) 9%,var(--bg-2)),var(--bg-2));border:1px solid var(--line-soft);touch-action:pan-y}
.array-wrap canvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab}
.array-wrap canvas:active{cursor:grabbing}
.array-hint{position:absolute;left:1rem;top:.85rem;font:500 .78rem var(--sans);color:var(--muted);pointer-events:none;transition:opacity .4s}
.array-scale{position:absolute;left:1rem;bottom:.85rem;font:500 .74rem var(--sans);color:var(--muted);display:flex;align-items:center;gap:.4rem;pointer-events:none}
.array-scale span{display:inline-block;height:1px;width:var(--sw,60px);background:var(--muted)}
@media (max-width:640px){.array-wrap{aspect-ratio:4/5}}
.event-picker{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0 .75rem}
.event-picker button{font:600 .9rem/1.2 var(--sans);text-align:left;display:grid;gap:.15rem;padding:.6rem .9rem;min-height:44px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.event-picker button small{font-weight:400;font-size:.76rem;color:var(--muted)}
.event-picker button[aria-checked="true"]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent)}
.event-picker .replay{width:44px;padding:0;place-items:center}
.event-text{max-width:40rem;margin:.25rem 0 .75rem;font-size:1.06rem}
figcaption{font:400 .8rem/1.5 var(--sans);color:var(--muted);max-width:44rem}

.funnel{margin:1.75rem 0 1.75rem;display:grid;gap:.85rem}
.funnel-row{display:grid;grid-template-columns:1fr;gap:.3rem}
.f-lab{font:500 .86rem/1.3 var(--sans)}
.f-bar{display:block;height:12px;border-radius:6px;background:var(--line-soft);overflow:hidden}
.f-bar span{display:block;height:100%;width:var(--w);background:var(--muted);border-radius:6px}
.f-bar span.cosmic{background:var(--accent)}
.f-val{font:500 .9rem var(--sans);font-variant-numeric:tabular-nums;color:var(--muted)}
.funnel figcaption{margin-top:.25rem}

.sky-wrap{border-radius:14px;overflow:hidden;background:var(--sky-bg);border:1px solid var(--line-soft)}
#skyMap{display:block;width:100%;height:auto}
#skyMap .grid{fill:none;stroke:var(--sky-grid);stroke-width:1}
#skyMap .outline{fill:none;stroke:var(--line);stroke-width:1.2}
#skyMap .earth{fill:var(--sky-earth)}
#skyMap .mw{fill:none;stroke:var(--mw);stroke-linecap:round}
#skyMap .eq{fill:none;stroke:var(--accent);stroke-width:1.2;stroke-dasharray:4 5;opacity:.7}
#skyMap text{font:500 13px var(--sans);fill:var(--muted)}
#skyMap .src circle.core{fill:var(--accent)}
#skyMap .src circle.halo{fill:none;stroke:var(--accent);opacity:.5}
#skyMap .src text{fill:var(--ink);font-weight:600}
#skyMap .src.on circle.halo{opacity:1;stroke-width:2}
#skyMap .mw.on{stroke:var(--warm);opacity:1}
@media (prefers-reduced-motion:no-preference){#skyMap .src circle.halo{animation:pulse 2.8s ease-out infinite;transform-box:fill-box;transform-origin:center}}
@keyframes pulse{0%{transform:scale(.6);opacity:.9}100%{transform:scale(1.8);opacity:0}}
.sky-legend{display:flex;flex-wrap:wrap;gap:1.1rem;margin:.75rem 0;font:500 .8rem var(--sans);color:var(--muted)}
.sky-legend i{display:inline-block;width:14px;height:10px;margin-right:.4rem;vertical-align:-1px;border-radius:2px}
.lg-earth{background:var(--sky-earth);border:1px solid var(--accent)}
.lg-mw{background:var(--mw)}
.lg-src{background:var(--accent);border-radius:50%!important;width:10px!important}
.sky-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:.6rem;margin:.5rem 0 .9rem}
.sky-card{text-align:left;display:grid;gap:.25rem;padding:.8rem .95rem;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;font:400 .84rem/1.4 var(--sans);min-height:44px}
.sky-card strong{font:600 .95rem var(--sans)}
.sky-card span{color:var(--muted)}
.sky-card[aria-pressed="true"]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}

.timeline{list-style:none;margin:2rem 0 0;padding:0;border-left:1px solid var(--line)}
.timeline li{display:grid;grid-template-columns:3.6rem 1fr;gap:.75rem;padding:.45rem 0 .45rem 1rem;position:relative;font-size:1.02rem;line-height:1.45}
.timeline li::before{content:"";position:absolute;left:-4px;top:.95rem;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.t-y{font:600 .9rem/1.6 var(--sans);font-variant-numeric:tabular-nums;color:var(--accent)}

.sources{font-size:1rem}
.src-list{padding-left:1.1rem;margin:0;display:grid;gap:.5rem;font-size:.95rem;line-height:1.45}
.site-footer{max-width:40rem;margin:5rem auto 0;padding:2rem 1.25rem calc(5rem + env(safe-area-inset-bottom));border-top:1px solid var(--line);font:400 .84rem/1.6 var(--sans);color:var(--muted)}
.site-footer p{margin:0 0 .4rem}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.topbar,.rail,.share,.stage,.hero-canvas{display:none}.steps{margin:0;padding:0}.step{margin:0 0 1rem;max-width:none}}

/* A quiet language link; the story keeps the same layout in both editions. */
.language-switch{flex:none;display:inline-grid;place-items:center;min-width:32px;min-height:44px;font:600 .72rem/1 var(--sans);letter-spacing:.04em;color:var(--muted)!important}
.language-switch:hover,.language-switch:focus-visible{color:var(--ink)!important}