@font-face{font-family:"Newsreader";font-style:normal;font-weight:400;font-display:swap;
  src:url('fonts/newsreader-latin.woff2') format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Newsreader";font-style:normal;font-weight:400;font-display:swap;
  src:url('fonts/newsreader-latin-ext.woff2') format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Atkinson";font-style:normal;font-weight:200 800;font-display:swap;
  src:url('fonts/atkinson-latin.woff2') format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Atkinson";font-style:normal;font-weight:200 800;font-display:swap;
  src:url('fonts/atkinson-latin-ext.woff2') format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;
  src:url('fonts/plexmono-latin.woff2') format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;
  src:url('fonts/plexmono-latin-ext.woff2') format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  color-scheme:light;
  --bg:#f4ead6;--bg-2:#e9dcbd;--card:#faf5e8;
  --ink:#241a0e;--ink-2:#4a3b24;--muted:#6d5c3d;
  --rule:#d5c49a;--rule-2:#a98f5f;
  --link:#0c4a5e;--accent:#8a5a2b;--mark:#0c4a5e;
  --sand:#d9a85f;--dune:#8a5a2b;--water:#4f8f7b;--wheat:#f0d9a8;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Atkinson",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --bar:3.1rem;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark;
  --bg:#1d150c;--bg-2:#2a2013;--card:#241b10;
  --ink:#f2e8d5;--ink-2:#d3c5a6;--muted:#b3a37f;
  --rule:#453723;--rule-2:#6b5738;
  --link:#a8d8e8;--accent:#e0b96f;--mark:#a8d8e8;
  --sand:#8a6a35;--dune:#e0b96f;--water:#6fb89f;--wheat:#e0b96f;
}}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#1d150c;--bg-2:#2a2013;--card:#241b10;
  --ink:#f2e8d5;--ink-2:#d3c5a6;--muted:#b3a37f;
  --rule:#453723;--rule-2:#6b5738;
  --link:#a8d8e8;--accent:#e0b96f;--mark:#a8d8e8;
  --sand:#8a6a35;--dune:#e0b96f;--water:#6fb89f;--wheat:#e0b96f;
}

*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--bar) + .5rem)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.05rem/1.62 var(--sans)}
body::after{content:"";position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E")}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2.5px solid var(--link);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--bg);padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:.5rem}
[hidden]{display:none!important}

/* top bar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:.9rem;height:var(--bar);padding:0 clamp(1rem,3vw,2rem);
  background:var(--bg);border-bottom:1px solid var(--rule)}
.topbar .home{color:var(--ink);text-decoration:none;font-size:1.2rem;line-height:1}
.topbar .crumb{font:600 .85rem/1 var(--sans);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .spacer{flex:1}
.topbar .lang{font-size:.9rem;white-space:nowrap}
.topbar .them{display:grid;place-items:center;width:2.5rem;height:2.5rem;border-radius:50%;border:1px solid var(--rule-2);background:transparent;color:var(--ink);cursor:pointer}
.topbar .them .ic::before{content:"◐"}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden}
.progress .ripple{position:absolute;left:0;top:0;bottom:0;width:12%;background:var(--dune);border-radius:0 1rem 1rem 0;will-change:transform}

/* reading rail */
.rail{display:none}
@media (min-width:76rem){
  .rail{display:block;position:fixed;right:1.2rem;top:50%;transform:translateY(-50%);z-index:25}
  .rail ul{list-style:none;margin:0;padding:.7rem .8rem;display:flex;flex-direction:column;gap:.85rem;background:var(--card);border:1px solid var(--rule);border-radius:999px}
  .rail a{display:block;width:.6rem;height:.6rem;border-radius:50%;background:var(--rule-2);overflow:hidden;text-indent:-999px;white-space:nowrap}
  .rail a[aria-current]{background:var(--accent);transform:scale(1.4)}
}
@media print{.rail{display:none}}

/* hero + beats */
main{display:block}
.beat{scroll-margin-top:calc(var(--bar) + .6rem);max-width:74rem;margin:0 auto;padding:clamp(1.6rem,4vw,3rem) clamp(1rem,3vw,2rem) 0}
.beat.narrow p{max-width:66ch}
h1{font:400 clamp(2.2rem,5.6vw,3.9rem)/1.04 var(--serif);letter-spacing:-.015em;margin:0 0 1rem;text-wrap:balance;max-width:24ch}
.nw{white-space:nowrap}
h2{font:400 clamp(1.7rem,3.4vw,2.4rem)/1.12 var(--serif);letter-spacing:-.01em;margin:0 0 .8rem;text-wrap:balance}
h3{font:700 1.05rem/1.3 var(--sans);margin:1.5rem 0 .35rem}
.deck{font:400 clamp(1.1rem,1.8vw,1.3rem)/1.5 var(--serif);color:var(--ink-2);margin:0 0 1.4rem;max-width:38rem}
.kicker{font:600 .82rem/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 .5rem}
main p{max-width:66ch}
main .beat p{font:400 1.08rem/1.62 var(--serif)}
.hero{margin:0}
figure{margin:1.4rem 0}
figure img{display:block;width:100%;height:auto;border-radius:.3rem}
figcaption{font:400 .92rem/1.5 var(--serif);color:var(--muted);margin-top:.5rem}
.hint{color:var(--muted);font-size:.95rem}
.skipstory,.backstory{margin:1.2rem 0 0}

/* scrolly story */
.story{display:grid;grid-template-columns:minmax(17rem,26rem) minmax(0,1fr);gap:2rem;align-items:start;
  max-width:74rem;margin:0 auto;padding:0 clamp(1rem,3vw,2rem)}
.story .col{min-width:0}
.story .col .beat{padding-left:0;padding-right:0;margin:0}
.stage{position:sticky;top:var(--bar);height:calc(100vh - var(--bar));height:calc(100lvh - var(--bar));
  display:flex;flex-direction:column;gap:.5rem;padding:.8rem 0;min-width:0}
#gl{display:block;width:100%;flex:1 1 auto;min-height:0;border:1px solid var(--rule);border-radius:.3rem;touch-action:pan-y;background:var(--bg-2)}
.no-gl #gl{display:none}
.hud{display:flex;align-items:baseline;gap:.7rem;flex-wrap:wrap;font:400 .95rem/1.4 var(--mono);color:var(--ink);
  background:var(--card);border:1px solid var(--rule);border-radius:.3rem;padding:.45rem .7rem;flex-shrink:0}
.hud-year{font-size:1.5rem;font-weight:600}
.hud-date{color:var(--ink-2)}
.hud-sensor{margin-left:auto;color:var(--muted);font-size:.8rem}
.readout{font:400 1rem/1.5 var(--serif);min-height:3em;margin:0;flex-shrink:0}
.controls{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;flex-shrink:0}
.controls .yr{font-size:.88rem;color:var(--ink-2);display:flex;align-items:center;gap:.4rem;flex:1 1 10rem}
.controls input[type="range"]{flex:1;accent-color:var(--dune);min-height:44px}
.play,.reset{min-height:44px;font:600 .9rem/1 var(--sans);color:var(--ink);background:var(--card);
  border:1.5px solid var(--rule-2);border-radius:999px;padding:.7rem 1rem;cursor:pointer}
.play:hover,.reset:hover{border-color:var(--ink)}
.step{min-height:70vh;display:flex;flex-direction:column;justify-content:center;padding:1.2rem 0}
.step h3{font:400 1.35rem/1.25 var(--serif);margin:0 0 .5rem}
.step p{margin:0 0 .8rem}
.parcel{border-top:1px solid var(--rule);padding:1.2rem 0}
.parcel h3{font:400 1.3rem/1.25 var(--serif);margin:0 0 .5rem}
.parcel .cause{border-left:3px solid var(--dune);padding-left:.8rem;color:var(--ink-2)}
.parcbtns{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0}
.parcbtns button{min-height:44px;font:600 .9rem/1.2 var(--sans);color:var(--ink);background:var(--card);
  border:1.5px solid var(--rule-2);border-radius:999px;padding:.6rem .95rem;cursor:pointer}
.parcbtns button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.curve{display:block;width:100%;height:auto;margin:.8rem 0;border:1px solid var(--rule);border-radius:.3rem;background:var(--card)}
.curve .grid line{stroke:var(--rule);stroke-width:1}
.curve .grid text{font:400 11px var(--mono);fill:var(--muted)}
.curve .ticks text{font:400 11px var(--mono);fill:var(--muted)}
.curve .line{fill:none;stroke:var(--dune);stroke-width:2.5}
.curve .dot{fill:var(--dune);stroke:var(--card);stroke-width:1.5}
.compare{font-style:italic}
.birth{display:flex;align-items:flex-end;gap:.6rem;flex-wrap:wrap;margin:1rem 0}
.birth label{font:600 .9rem/1.4 var(--sans);display:flex;flex-direction:column;gap:.3rem}
.birth input[type="number"]{font:400 1.1rem/1.4 var(--mono);color:var(--ink);background:var(--card);
  border:1.5px solid var(--rule-2);border-radius:.5rem;padding:.6rem .7rem;min-height:44px;width:10rem}
.birth button{min-height:44px;font:600 .9rem/1 var(--sans);color:var(--bg);background:var(--dune);
  border:1.5px solid var(--dune);border-radius:999px;padding:.7rem 1.1rem;cursor:pointer}
.birth .clear-birth{background:var(--card);color:var(--ink);border-color:var(--rule-2)}
.birth .err{flex-basis:100%;color:#a3331f;margin:.2rem 0 0}
:root[data-theme="dark"] .birth .err,.birth .err{color:#d4694f}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]) .birth .err{color:#a3331f}}
.birth-out{font:400 1.08rem/1.6 var(--serif);min-height:2em}

/* share + related + footer */
.share{max-width:74rem;margin:2rem auto 0;padding:0 clamp(1rem,3vw,2rem)}
.related{max-width:74rem;margin:2.5rem auto 0;padding:0 clamp(1rem,3vw,2rem)}
.related ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem 1.2rem}
footer{margin-top:3.5rem;border-top:1px solid var(--rule);padding:1.4rem clamp(1rem,3vw,2rem) 5rem;font-size:.9rem;color:var(--muted)}

@media (max-width:60rem){
  .story{grid-template-columns:1fr;padding:0}
  .story .col{padding:0 clamp(1rem,3vw,2rem);order:2}
  .stage{position:sticky;top:var(--bar);height:auto;min-height:40vh;min-height:40lvh;z-index:5;background:var(--bg);padding:.4rem clamp(1rem,3vw,2rem);order:1;gap:.35rem}
  .stage #gl{flex:none;height:20vh;height:20lvh;min-height:110px}
  .hud{font-size:.85rem;padding:.3rem .5rem;flex-wrap:nowrap}
  .hud-year{font-size:1.2rem}
  .hud-date{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
  .hud-sensor{flex-shrink:0}
  .readout{font-size:.92rem;line-height:1.4}
  .controls{gap:.4rem}
  .controls .yr{font-size:.82rem}
  .play,.reset{padding:.55rem .8rem;font-size:.82rem}
  .beat,.step,.parcel{scroll-margin-top:70vh;scroll-margin-top:70lvh}
  .step{min-height:0;padding:4rem 0}
  .readout{min-height:0}
}
@media (max-height:740px) and (min-width:60rem){
  .stage{font-size:.92em}
  .readout{min-height:2.2em}
}
@media (max-width:430px){
  .topbar .crumb{display:none}
  .hud-year{font-size:1.2rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}
@media print{.topbar,.rail,.stage,.progress,.controls,.parcbtns,.birth,.share{display:none}}


/* share row (standards/v2/tools/share_row.py) */
.share-row{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center}
.share-row .lab{font-size:.95rem;margin-inline-end:.3rem}
.share-row a,.share-row button{display:inline-grid;place-items:center;flex:none;width:2.5rem;height:2.5rem;padding:0;border-radius:50%;border:1px solid var(--sr-line,color-mix(in srgb,currentColor 28%,transparent));background:transparent;color:var(--sr-ink,inherit);text-decoration:none;cursor:pointer;font:inherit;transition:color .15s,border-color .15s}
.share-row a:hover,.share-row button:hover,.share-row a:focus-visible,.share-row button:focus-visible{color:var(--sr-acc,inherit);border-color:var(--sr-acc,currentColor)}
.share-row [hidden]{display:none}
@media (pointer:coarse){.share-row a,.share-row button{width:2.75rem;height:2.75rem}}
@media (max-width:30rem){.share-row .lab{flex-basis:100%;margin:0 0 .15rem}}
.share-status{font-size:.92rem;color:var(--sr-ok,inherit);min-height:1.2em;margin:.4rem 0 0}
.share-status:empty{display:none}
.share-field{display:block;width:100%;max-width:36rem;margin-top:.4rem;font:inherit;font-size:.9rem}