@font-face{font-family:"Newsreader";font-style:normal;font-weight:200 800;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+2074,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:200 800;font-display:swap;src:url("fonts/newsreader-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,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:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url("fonts/newsreader-italic-400-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F}
@font-face{font-family:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url("fonts/newsreader-italic-400-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/IBMPlexSans-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+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/IBMPlexSans-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

/* Night: the city as its trees, planes lit in leaf green. Day: a planting plan on paper. Tree colours are tokens read by app.js. */
:root{
  color-scheme:light;
  --bg:#f2eee3;--surface:#fbf9f2;--surface-2:#e9e3d4;--land:#f0ebdf;--sea:#cfdde2;
  --ink:#17201b;--ink-2:#2b352f;--muted:#465049;--line:#c8c0ad;--line-soft:#ddd6c5;
  --accent:#255c24;--accent-ink:#fff;--hi:#17201b;
  --t-o:#9b8e6f;--t-p:#3a8a2f;--t-g:#cf4c14;--t-n:#1d2b24;--t-o-ink:#5e543e;--t-g-ink:#983406;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;--sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --topbar:46px;--to-top-bg:var(--surface);--to-top-fg:var(--ink);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark;
  --bg:#0b1411;--surface:#111c18;--surface-2:#192823;--land:#0c1714;--sea:#0d1d24;
  --ink:#eef0e6;--ink-2:#d3d9cd;--muted:#a9b6aa;--line:#2b3c36;--line-soft:#1b2a25;
  --accent:#a2e283;--accent-ink:#0b1411;--hi:#fff4cf;
  --t-o:#b2a47c;--t-p:#97e173;--t-g:#ff8a4c;--t-n:#fff8e6;--t-o-ink:#cdbf97;--t-g-ink:#ff9a62;
}}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0b1411;--surface:#111c18;--surface-2:#192823;--land:#0c1714;--sea:#0d1d24;
  --ink:#eef0e6;--ink-2:#d3d9cd;--muted:#a9b6aa;--line:#2b3c36;--line-soft:#1b2a25;
  --accent:#a2e283;--accent-ink:#0b1411;--hi:#fff4cf;
  --t-o:#b2a47c;--t-p:#97e173;--t-g:#ff8a4c;--t-n:#fff8e6;--t-o-ink:#cdbf97;--t-g-ink:#ff9a62;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
svg[hidden]{display:none}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--topbar) + 14px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration-color:var(--accent);text-underline-offset:.18em;text-decoration-thickness:1.5px}
a:hover{color:var(--accent)}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px;font-weight:600}
.skip-link:focus{top:10px}
h1,h2,h3{font-family:var(--serif);font-weight:560;text-wrap:balance;line-height:1.06;letter-spacing:-.01em;font-variation-settings:"opsz" 60}
i,em{font-family:var(--serif);font-style:italic}
.anchor{opacity:0;margin-left:.3em;text-decoration:none;color:var(--muted);font-family:var(--sans);font-size:.5em;font-weight:500;vertical-align:middle;display:inline-block;min-width:1.4em}
h2:hover .anchor,.anchor:focus-visible{opacity:1}
@media (pointer:coarse){.anchor{opacity:.55}}

/* ---------- top bar: slim, in the scene's colours */
.topbar{position:fixed;inset:0 0 auto 0;height:var(--topbar);z-index:40;display:flex;align-items:center;gap:6px;padding:0 max(12px,env(safe-area-inset-right)) 0 max(12px,env(safe-area-inset-left));background:var(--bg);border-bottom:1px solid var(--line-soft);font-size:14px}
.brand{display:flex;align-items:center;gap:8px;font-weight:600;text-decoration:none;white-space:nowrap;min-width:0}
.brand span:last-child{overflow:hidden;text-overflow:ellipsis}
.brand-mark{width:20px;height:20px;flex:none;color:var(--t-p)}
.topnav{display:none;gap:1px;margin-left:10px;overflow:hidden;transition:opacity .3s}
.topnav a{padding:6px 9px;border-radius:999px;text-decoration:none;color:var(--ink-2);white-space:nowrap}
.topnav a:hover,.topnav a[aria-current="true"]{color:var(--ink);background:var(--surface-2)}
@media (min-width:1240px){.topnav{display:flex}}
.in-story .topnav{opacity:0;pointer-events:none}
.spacer{flex:1}
.chips{display:flex;gap:3px}
.chip{display:inline-flex;align-items:center;justify-content:center;min-width:34px;min-height:32px;padding:0 7px;border-radius:999px;text-decoration:none;font-weight:600;font-size:12.5px;border:1px solid var(--line);color:var(--ink-2)}
.chip[aria-current="page"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
@media (max-width:440px){.brand span:last-child{display:none}.chip{min-width:31px;padding:0 4px}}
.icon-btn{width:36px;height:36px;flex:none;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.icon-btn:hover{background:var(--surface-2)}
.i-moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .i-sun{display:none}:root:not([data-theme="light"]) .i-moon{display:block}}
:root[data-theme="dark"] .i-sun{display:none}:root[data-theme="dark"] .i-moon{display:block}
.progress{position:fixed;left:0;right:0;top:var(--topbar);height:2px;z-index:41;pointer-events:none}
.progress i{position:absolute;inset:0;transform-origin:0 50%;transform:scaleX(0);background:var(--t-p);opacity:.75}
/* a plane seed ball rides the hairline */
.progress .seed{position:absolute;left:0;top:-4px;width:10px;height:10px;border-radius:50%;background:radial-gradient(circle at 35% 35%,var(--t-p),color-mix(in srgb,var(--t-p) 55%,var(--bg)));box-shadow:0 0 0 1.5px var(--bg)}

/* ---------- reading rail: hairline dots at the edge, after the opening */
.rail{display:none}
@media (min-width:1280px){
.rail{display:flex;flex-direction:column;position:fixed;right:6px;top:50%;transform:translateY(-50%);z-index:30;opacity:0;transition:opacity .4s}
.rail.on{opacity:1}
.rail-dot{position:relative;display:flex;align-items:center;justify-content:center;width:22px;height:22px;text-decoration:none}
.rail-dot .dot{width:5px;height:5px;border-radius:50%;background:var(--muted);opacity:.6;transition:transform .2s,background .2s,opacity .2s}
.rail-dot:hover .dot,.rail-dot:focus-visible .dot{background:var(--accent);opacity:1;transform:scale(1.4)}
.rail-dot[aria-current="true"] .dot{background:var(--t-p);opacity:1;transform:scale(1.6)}
.rail-label{position:absolute;right:calc(100% + 4px);top:50%;transform:translate(6px,-50%);padding:2px 9px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);font-size:13px;font-weight:600;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .15s,transform .15s}
.rail-dot:hover .rail-label,.rail-dot:focus-visible .rail-label{opacity:1;transform:translate(0,-50%)}
}

/* ---------- the story: text on the left, the map pinned on the right */
main{padding-top:var(--topbar)}
.story{display:grid;grid-template-columns:minmax(340px,34%) 1fr;gap:0 28px;padding:0 max(18px,env(safe-area-inset-left)) 0 max(18px,env(safe-area-inset-right))}
@media (min-width:1280px){.story{padding-right:44px}}
.stage{grid-column:2;grid-row:1;position:sticky;top:calc(var(--topbar) + 12px);height:calc(100svh - var(--topbar) - 24px);margin-top:12px;border-radius:18px;overflow:hidden;background:var(--land);border:1px solid var(--line-soft);isolation:isolate}
.steps{grid-column:1;grid-row:1;list-style:none;margin:0;padding:0}
.step{min-height:92svh;display:flex;align-items:center;padding:40px 0}
.step:last-child{min-height:100svh}
.step-card{transition:opacity .35s;background:var(--surface);border:1px solid var(--line-soft);border-radius:16px;padding:24px 26px;max-width:560px}
.step-card h2{font-size:clamp(28px,2.6vw,38px);margin:0 0 .45em}
.step-card p{margin:.6em 0}
.step-card strong,.deck strong{color:var(--accent);font-weight:700}
.hero{min-height:calc(100svh - var(--topbar));align-items:center}
.hero-card{max-width:600px;padding:12px 0}
.kicker{margin:0 0 12px;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero h1{font-size:clamp(38px,3.7vw,58px);margin:0 0 20px;line-height:1.02}
.deck{font-size:19px;line-height:1.58;margin:0 0 18px;color:var(--ink-2)}
.shared-street{font-family:var(--serif);font-size:22px;line-height:1.3;margin:0 0 14px;padding:10px 14px;border-left:3px solid var(--t-p);background:var(--surface)}
.scroll-cue{font-size:14px;color:var(--muted);margin:24px 0 0}

/* the map */
.map-box{position:absolute;inset:0}
.map,.still{position:absolute;inset:0;width:100%;height:100%;display:block}
.still{object-fit:contain;background:#0c1714}
.ready .still{display:none}
.map{cursor:pointer;touch-action:pan-y}
.legend{position:absolute;left:12px;bottom:12px;display:flex;flex-wrap:wrap;gap:4px 12px;font-size:14px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line-soft);border-radius:10px;padding:5px 10px;pointer-events:none;max-width:calc(100% - 24px)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:5px;vertical-align:-1px}
.k-p{background:var(--t-p)}.k-o{background:var(--t-o)}.k-g{border-radius:0!important;background:linear-gradient(45deg,transparent 42%,var(--t-g) 42% 58%,transparent 58%),linear-gradient(-45deg,transparent 42%,var(--t-g) 42% 58%,transparent 58%)}.k-n{box-shadow:inset 0 0 0 2px var(--t-n)}
.legend .lg-g,.legend .lg-n,.legend .lg-a{display:none}
.stage[data-scene="gone"] .legend .lg-g,.stage[data-scene="gone"] .legend .lg-n,.stage[data-scene="diagonal"] .legend .lg-g,.stage[data-scene="diagonal"] .legend .lg-n{display:inline}
.stage[data-scene="cdc"] .legend .lg-a{display:inline}
.stage[data-scene^="chart"] .legend,.stage[data-scene^="chart"] .credit{display:none}
.credit{position:absolute;right:12px;bottom:12px;margin:0;font-size:11px;color:var(--muted);background:color-mix(in srgb,var(--land) 85%,transparent);padding:1px 6px;border-radius:6px;pointer-events:none}
.stage-whole{position:absolute;right:12px;top:12px;margin:0;z-index:3;min-height:40px;padding:6px 14px}
.chart{position:absolute;inset:0;width:100%;height:100%;display:block}
.chart text{fill:var(--ink-2);font:13.5px var(--sans)}
.chart .big{font:600 26px var(--serif);fill:var(--t-p)}
.chart .big2{font:600 22px var(--serif);fill:var(--t-g-ink)}
.chart .dotg{fill:var(--t-g);stroke:var(--land);stroke-width:2}
.chart .t{font:600 15px var(--sans);fill:var(--ink)}
.chart .grid{stroke:var(--line);stroke-width:1;opacity:.6}
.chart .ser{fill:none;stroke:var(--t-p);stroke-width:3.6;stroke-linejoin:round}
.chart .ser2{fill:none;stroke:var(--t-o);stroke-width:2.6;stroke-dasharray:1 6;stroke-linecap:round}
.chart .lab3{fill:var(--t-o-ink)}
.chart .promise{stroke:var(--ink);stroke-width:2.4;stroke-dasharray:7 6;opacity:.9}
.chart .target{fill:none;stroke:var(--ink);stroke-width:2}
.chart .tg{fill:var(--ink);font-weight:600}
.chart .tg2{fill:var(--t-g-ink);font-weight:600}
.chart .lab{fill:var(--ink);font-weight:600}
.chart .lab2{fill:var(--muted)}
.chart .dot{fill:var(--t-p);stroke:var(--land);stroke-width:2}
.chart .gap{fill:var(--t-p);opacity:.12}
.chart .lvl{stroke:var(--ink);stroke-width:1;stroke-dasharray:3 4;opacity:.55}
.chart .proj{stroke:var(--t-p);stroke-width:3;stroke-dasharray:3 6;stroke-linecap:round}
.chart .need{stroke:var(--t-g);stroke-width:3}
.failed .still{display:block}

/* controls */
.btn{font:600 14.5px var(--sans);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:9px 16px;min-height:44px;cursor:pointer}
.btn:hover{background:var(--surface-2)}

/* the street picker and card */
.picker{margin-top:14px}
.pick-label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.pick-row{display:flex;gap:8px}
.pick-row input{flex:1;min-width:0;font:16px var(--sans);color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:9px 12px;min-height:44px}
.q-list{list-style:none;margin:6px 0 0;padding:4px;border:1px solid var(--line);border-radius:12px;background:var(--surface);max-height:280px;overflow:auto}
.q-list li{padding:8px 10px;border-radius:8px;cursor:pointer;font-size:15px}
.q-list li small{color:var(--muted);margin-left:8px}
.q-list li[aria-selected="true"],.q-list li:hover{background:var(--surface-2)}
.pick-msg{font-size:14px;color:var(--muted);margin:6px 0 0;min-height:1.2em}
.st-card{margin-top:16px;border-top:1px solid var(--line-soft);padding-top:14px}
.st-card h3{font-size:30px;margin:0 0 4px}
.st-big{margin:0 0 6px;font-weight:600;font-size:17px}
.st-line{margin:3px 0;font-size:15.5px}
.muted{color:var(--muted)}
.kinds{margin:12px 0 6px}
.kinds figcaption{font-size:13.5px;color:var(--muted);margin-bottom:6px}
.kinds ul{list-style:none;margin:0;padding:0}
.kinds li{display:grid;grid-template-columns:1fr auto;gap:2px 10px;font-size:14.5px;margin:0 0 7px}
.kinds li em{color:var(--muted);font-size:13.5px}
.kinds li b{font-weight:600;font-variant-numeric:tabular-nums}
.kinds li i{grid-column:1/-1;display:block;height:5px;border-radius:3px;background:var(--t-o);opacity:.85}
.kinds li.is-p i{background:var(--t-p);opacity:1}
.kinds li.rest{display:block;color:var(--muted);font-size:13.5px}

/* share */
.share{margin:14px 0 6px}
.share-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.share-label{font-size:13.5px;color:var(--muted);margin-right:2px}
.ic{width:40px;height:40px;display:inline-grid;place-items:center;border-radius:50%;border:1px solid var(--line-soft);background:transparent;color:var(--ink);cursor:pointer;text-decoration:none}
.ic:hover{color:var(--accent);border-color:var(--accent)}
@media (pointer:coarse){.ic{width:44px;height:44px}}
.share-msg{font-size:13.5px;color:var(--muted);margin:4px 0 0;min-height:1.2em}

/* after the story: a band of plane bark between the story and the notes */
.after{padding:0 max(18px,env(safe-area-inset-left)) 0}
.bark{height:30px;margin:48px calc(-1 * max(18px,env(safe-area-inset-left))) 8px;background:url("img/bark.svg") repeat-x 0 0/auto 30px}
.prose{max-width:720px;margin:0 auto}
.block h2{font-size:32px;margin:1.4em 0 .4em}
.sources{padding-left:1.1em}
.sources li{margin:.5em 0;font-size:15.5px}
.site-footer{max-width:720px;margin:48px auto 0;padding:22px 0 40px;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--muted)}

/* ---------- phone: the map on top (40% of the screen), the text keeps the rest */
@media (max-width:860px){
  .story{display:block;padding:0}
  .stage{position:sticky;top:var(--topbar);height:40svh;margin:0;border-radius:0;border-left:0;border-right:0;z-index:6;box-shadow:0 1px 0 var(--line-soft)}
  .steps{padding:0 14px;position:relative;z-index:4}
  .step{min-height:auto;padding:22px 0 30vh}
  .step:last-child{padding-bottom:40px}
  .hero{min-height:auto;padding-top:20px}
  .hero h1{font-size:clamp(32px,8.6vw,44px)}
  .deck{font-size:17px}
  .step-card{padding:18px}
  .legend{font-size:11.5px;padding:3px 8px;bottom:8px;left:8px}
  .credit{display:none}
  .stage-whole{top:8px;right:8px;min-height:36px;padding:4px 12px;font-size:13.5px}
  .chart .t{font-size:13px}
  .chart text{font-size:11px}
}
@media (max-width:860px) and (max-height:640px){.stage{height:34svh}}
@media print{.topbar,.rail,.stage,.share{display:none}.step{min-height:0}}

/* the back-to-top ring sits over the map's corner on desktop, never over the text column */
@media (min-width:861px){.to-top-x.left{left:auto!important;right:max(1rem,env(safe-area-inset-right))!important}.credit{bottom:64px}}
@media (max-width:860px){.pick-row{flex-wrap:wrap}.pick-row input{flex-basis:100%}}

/* lines that scroll under the bar fade instead of showing cut in half */
.topbar::after{content:"";position:absolute;left:0;right:0;top:100%;height:26px;background:linear-gradient(var(--bg),transparent);pointer-events:none}
@media (max-width:860px){.topbar::after{display:none}.hero h1{font-size:clamp(28px,7.4vw,38px)}}

.step.past .step-card{opacity:.12}
@media (prefers-reduced-motion:reduce){.step-card{transition:none}}