@font-face{font-family:"Bricolage";src:url("fonts/bricolage-grotesque-latin-opsz-normal.woff2?v=a79fdb52d4") format("woff2");font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"Source Serif";src:url("fonts/source-serif-4-latin-opsz-normal.woff2?v=f2ea9c12d2") format("woff2");font-weight:200 900;font-style:normal;font-display:swap}
@font-face{font-family:"Source Serif";src:url("fonts/source-serif-4-latin-opsz-italic.woff2?v=96e6393209") format("woff2");font-weight:200 900;font-style:italic;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("fonts/jetbrains-mono-latin-wght-normal.woff2?v=18be452724") format("woff2");font-weight:100 800;font-style:normal;font-display:swap}

:root{
  --bar:3rem;
  --bg:#f3efe7; --bg-2:#e9e3d8; --ink:#17191e; --muted:#555a63; --line:rgba(23,25,30,.17); --line-soft:rgba(23,25,30,.09);
  --accent:#0a6b97; --accent-ink:#fff; --warm:#a85400; --alarm:#c0392b; --card:rgba(243,239,231,.93); --card-edge:rgba(23,25,30,.11);
  --sky-top:#c9d3dd; --sky-low:#efe6d6; --house:#d9cfbf; --house-edge:#9b907f; --window:#f4c46a; --street:#b9b1a4; --car:#2b3340; --car-hi:#6c7a8c;
  --signal:#0a86c0; --reply:#c46a00; --relay:#c0392b; --lamp:#f2a93b;
  --serif:"Source Serif",Georgia,"Times New Roman",serif; --display:"Bricolage",system-ui,sans-serif; --sans:"Bricolage",system-ui,-apple-system,"Segoe UI",sans-serif; --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0b0d12; --bg-2:#12151d; --ink:#ebe7df; --muted:#9aa0ab; --line:rgba(235,231,223,.17); --line-soft:rgba(235,231,223,.08);
  --accent:#62cdfa; --accent-ink:#0b0d12; --warm:#ffb04a; --alarm:#ff6b5b; --card:rgba(11,13,18,.86); --card-edge:rgba(235,231,223,.1);
  --sky-top:#05070b; --sky-low:#151a26; --house:#1b202b; --house-edge:#2c3342; --window:#ffbe5c; --street:#20242e; --car:#3a4252; --car-hi:#8592a6;
  --signal:#62cdfa; --reply:#ffb04a; --relay:#ff6b5b; --lamp:#ffb04a;
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0b0d12; --bg-2:#12151d; --ink:#ebe7df; --muted:#9aa0ab; --line:rgba(235,231,223,.17); --line-soft:rgba(235,231,223,.08);
    --accent:#62cdfa; --accent-ink:#0b0d12; --warm:#ffb04a; --alarm:#ff6b5b; --card:rgba(11,13,18,.86); --card-edge:rgba(235,231,223,.1);
    --sky-top:#05070b; --sky-low:#151a26; --house:#1b202b; --house-edge:#2c3342; --window:#ffbe5c; --street:#20242e; --car:#3a4252; --car-hi:#8592a6;
    --signal:#62cdfa; --reply:#ffb04a; --relay:#ff6b5b; --lamp:#ffb04a;
    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 1.15rem/1.62 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],.step[id]{scroll-margin-top:calc(var(--bar) + var(--browser-safe-top,env(safe-area-inset-top)) + .5rem)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* 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:100svh;display:grid;align-items:end;padding:calc(var(--bar) + 3rem) max(1.25rem,env(safe-area-inset-left)) 5.5rem;overflow:hidden;isolation:isolate;background:linear-gradient(180deg,var(--sky-top),var(--sky-low))}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,color-mix(in srgb,var(--bg) 94%,transparent) 0%,color-mix(in srgb,var(--bg) 82%,transparent) 50%,transparent 66%);pointer-events:none}
@media (max-width:899px){.hero::after{background:linear-gradient(0deg,transparent 0%,color-mix(in srgb,var(--bg) 88%,transparent) 14%,color-mix(in srgb,var(--bg) 80%,transparent) 100%)}}
.hero-inner{max-width:44rem;margin:0 auto 0 max(0px,calc((100vw - 70rem)/2))}
.kicker{font:650 .78rem/1.2 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--warm);margin:0 0 1rem}
h1{font:700 clamp(2.7rem,8.4vw,6rem)/.95 var(--display);font-variation-settings:"opsz" 96;letter-spacing:-.035em;margin:0 0 1.4rem;text-wrap:balance}
.deck{font-size:clamp(1.12rem,2.1vw,1.34rem);line-height:1.5;max-width:40rem;margin:0 0 1.8rem}
.clock{display:flex;align-items:center;gap:1rem;padding:.9rem 1.1rem .9rem .9rem;border:1px solid var(--line);border-radius:14px;background:color-mix(in srgb,var(--bg) 72%,transparent);max-width:32rem;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.clock svg{flex:none;width:68px;height:68px}
.clock .dial-bg{fill:none;stroke:var(--line);stroke-width:5}
.clock .dial{fill:none;stroke:var(--warm);stroke-width:5;stroke-linecap:round;transform:rotate(-90deg);transform-origin:50% 50%}
.clock .dial-t{font:600 13px var(--mono);fill:var(--ink)}
.clock-text{display:grid;gap:.2rem}
.clock-label{font:600 .74rem/1.3 var(--sans);letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.clock-num{font:500 clamp(1.5rem,4vw,2rem)/1.1 var(--mono);font-variant-numeric:tabular-nums;color:var(--warm)}
.clock-note{font:400 .8rem/1.4 var(--sans);color:var(--muted)}
.byline{font:500 .8rem var(--sans);color:var(--muted);margin:1.4rem 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:650 clamp(1.7rem,4vw,2.45rem)/1.1 var(--display);font-variation-settings:"opsz" 60;letter-spacing:-.025em;margin:0 0 1.2rem;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,cite{font-style:italic}
blockquote{margin:2rem 0;padding:0 0 0 1.25rem;border-left:2px solid var(--warm)}
blockquote p{font:400 1.4rem/1.38 var(--serif);font-style:italic;margin:0 0 .5rem}
blockquote footer{font:500 .82rem var(--sans);color:var(--muted)}
.coda{font:500 1.3rem/1.45 var(--serif);margin-top:2rem!important;padding-top:1.5rem;border-top:1px solid var(--line)}

/* the time microscope */
.scrolly{position:relative;margin-top:4rem}
.stage{position:sticky;top:calc(var(--bar) + var(--browser-safe-top,env(safe-area-inset-top)));height:calc(100svh - var(--bar) - var(--browser-safe-top,env(safe-area-inset-top)));overflow:hidden;background:linear-gradient(180deg,var(--sky-top),var(--sky-low))}
.stage canvas{display:block;width:100%;height:100%}
.steps{position:relative;margin-top:calc(-1 * (100svh - var(--bar) - var(--browser-safe-top,env(safe-area-inset-top))));pointer-events:none;padding:0 1.25rem 45vh}
.step{pointer-events:auto;max-width:25rem;margin:0 0 75vh;padding:1.1rem 1.25rem;background:var(--card);border:1px solid var(--card-edge);border-radius:12px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);font-size:1.04rem;line-height:1.55}
.step p{margin:0}
.step p+p{margin-top:.6rem}
.step-k{font:600 .76rem/1.3 var(--mono)!important;letter-spacing:.04em;text-transform:uppercase;color:var(--warm);margin-bottom:.45rem!important}
.step-head{margin-top:14vh}
.step-head h2{font-size:clamp(1.55rem,3.4vw,2.15rem)}
@media (min-width:900px){.steps{padding-left:max(2rem,calc((100vw - 70rem)/2))}.step{max-width:24rem}}
@media (max-width:899px){.step{margin-left:auto;margin-right:auto;font-size:1rem}.steps{padding-top:0}}
.readout{position:absolute;right:max(1.25rem,calc((100vw - 70rem)/2));top:1.1rem;display:grid;justify-items:end;gap:.1rem;pointer-events:none;padding:.7rem .95rem;border-radius:12px;background:color-mix(in srgb,var(--bg) 70%,transparent);border:1px solid var(--line-soft);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);max-width:min(19rem,calc(100vw - 2.5rem))}
.ro-label{font:600 .68rem/1.2 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.ro-num{font:500 clamp(1.7rem,5.4vw,3rem)/1.05 var(--mono);font-variant-numeric:tabular-nums;color:var(--ink);letter-spacing:-.03em;white-space:nowrap}
.ro-sub{font:500 .8rem/1.35 var(--sans);color:var(--muted);text-align:right}
@media (min-width:1180px){.readout{right:5.5rem}}
@media (max-width:899px){.readout{left:1rem;right:auto;justify-items:start;top:.6rem;padding:.45rem .7rem}.ro-sub{text-align:left}.ro-num{font-size:1.5rem}.ro-label{font-size:.62rem}}

/* figures */
figure{margin:0}
figcaption{font:400 .82rem/1.5 var(--sans);color:var(--muted);max-width:44rem;margin-top:.6rem}
section.wide{padding-top:5rem}
.wide-fig{max-width:70rem;margin:1.5rem auto 0;padding:0 1.25rem}
.chart-wrap{position:relative;border-radius:14px;background:var(--bg-2);border:1px solid var(--line-soft);padding:.5rem .25rem 0}
#curve,.curve{display:block;width:100%;height:auto;overflow:visible}
.c-narrow{display:none!important}
@media (max-width:640px){.c-wide{display:none!important}.c-narrow{display:block!important}.c-narrow text{font-size:14px!important}.c-narrow .era-t{font-size:12.5px!important}}
.curve .ax{stroke:var(--line);stroke-width:1}
.curve .grid{stroke:var(--line-soft);stroke-width:1}
.curve text{font:500 12px var(--sans);fill:var(--muted)}
.curve .lab{font:600 13px var(--sans);fill:var(--ink)}
.curve .big{font:600 15px var(--mono);fill:var(--ink)}
.curve .line{fill:none;stroke:var(--warm);stroke-width:3;stroke-linejoin:round;stroke-linecap:round}
.curve .area{fill:var(--warm);opacity:.12}
.curve .dot{fill:var(--warm)}
.curve .gap{stroke:var(--warm);stroke-dasharray:2 5;stroke-width:2;fill:none;opacity:.6}
.curve .era{fill:var(--accent);opacity:.07}
.curve .era-t{font:600 11.5px var(--sans);fill:var(--accent);letter-spacing:.04em;text-transform:uppercase}
.curve .mk{stroke:var(--ink);stroke-width:1;stroke-dasharray:3 3;opacity:.6}
.curve-sum{font:500 .95rem/1.5 var(--sans);margin:.8rem 0 0;color:var(--ink)}

.grid100{display:grid;grid-template-columns:repeat(10,1fr);gap:4px;max-width:min(20rem,100%);margin:1.6rem 0 .6rem}
.grid100 i{display:block;aspect-ratio:1;border-radius:3px;background:var(--line);transition:background .4s}
.grid100 i.ns{background:color-mix(in srgb,var(--muted) 55%,transparent)}
.grid100 i.ch{background:var(--warm)}
.grid100 i.ot{background:color-mix(in srgb,var(--accent) 55%,transparent)}
.key{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;font:500 .84rem/1.4 var(--sans);color:var(--muted);margin:0 0 .5rem;padding:0;list-style:none}
.key i{display:inline-block;width:11px;height:11px;border-radius:2px;margin-right:.4rem;vertical-align:-1px}
.key .k-ch{background:var(--warm)}.key .k-ns{background:color-mix(in srgb,var(--muted) 55%,transparent)}.key .k-ot{background:color-mix(in srgb,var(--accent) 55%,transparent)}

/* the chain */
.chain{margin:1.6rem 0 1rem;display:grid;gap:.8rem}
.links{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:.4rem;counter-reset:l}
.links li{position:relative;padding:.7rem .65rem .75rem;border:1px solid var(--line);border-radius:10px;font:500 .8rem/1.35 var(--sans);color:var(--ink);background:var(--bg-2);transition:border-color .3s,opacity .3s,background .3s}
.links li b{display:block;font:600 .68rem/1.2 var(--mono);color:var(--muted);letter-spacing:.06em;margin-bottom:.3rem}
.links li.cut{border-color:var(--alarm);background:color-mix(in srgb,var(--alarm) 9%,var(--bg-2))}
.links li.cut::after{content:"";position:absolute;right:-.35rem;top:50%;width:.7rem;height:2px;background:var(--alarm);transform:rotate(-55deg)}
@media (max-width:560px){.links{grid-template-columns:1fr 1fr}}
.defences{display:flex;flex-wrap:wrap;gap:.5rem}
.defences button{font:600 .88rem/1.2 var(--sans);text-align:left;padding:.6rem .9rem;min-height:44px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.defences button[aria-pressed="true"]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 13%,transparent)}
.verdict{font:500 1rem/1.5 var(--sans);min-height:3em;margin:0;padding:.8rem 1rem;border-left:2px solid var(--accent);background:var(--bg-2);border-radius:0 8px 8px 0}

.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;transition:none!important}}
@media print{.topbar,.rail,.share,.stage,.hero-canvas{display:none}.steps{margin:0;padding:0}.step{margin:0 0 1rem;max-width:none}}