@font-face{font-family:"Fraunces";font-style:normal;font-weight:300 800;font-display:swap;src:url("fonts/fraunces-normal-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:"Fraunces";font-style:normal;font-weight:300 800;font-display:swap;src:url("fonts/fraunces-normal-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:"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}

/* Tokens. The stage (space and planet) stays night in both themes; the text follows the reader's theme. */
:root{
  color-scheme:dark;
  --bg:#060b17;--surface:#0d1528;--surface-2:#16213a;--card:rgba(7,12,26,.88);
  --ink:#eef2f8;--ink-2:#d5ddeb;--muted:#b3bfd3;--line:#2a3756;--line-soft:#1b2640;
  --accent:#ffc874;--accent-ink:#1c1104;--sea:#1d5d8f;--rock:#5b5246;--bar:#8fb0dc;--you:#ffe1ad;
  --serif:"Fraunces","Iowan Old Style",Georgia,serif;--sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --topbar:44px;--to-top-bg:#060b17;--to-top-fg:#eef2f8;
}
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#f4f1ea;--surface:#fffdf8;--surface-2:#e9e3d6;--card:rgba(255,253,248,.95);
  --ink:#141a26;--ink-2:#232b3a;--muted:#3d4657;--line:#cfc6b4;--line-soft:#e2dbcd;
  --accent:#8a4b05;--accent-ink:#ffffff;--sea:#2f6fa5;--rock:#9a8a72;--bar:#3b5c8c;--you:#7a3f00;
  --to-top-bg:#f4f1ea;--to-top-fg:#141a26;
}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]){color-scheme:light;
  --bg:#f4f1ea;--surface:#fffdf8;--surface-2:#e9e3d6;--card:rgba(255,253,248,.95);
  --ink:#141a26;--ink-2:#232b3a;--muted:#3d4657;--line:#cfc6b4;--line-soft:#e2dbcd;
  --accent:#8a4b05;--accent-ink:#ffffff;--sea:#2f6fa5;--rock:#9a8a72;--bar:#3b5c8c;--you:#7a3f00;--to-top-bg:#f4f1ea;--to-top-fg:#141a26}}
html.in-story{--to-top-bg:#060b17;--to-top-fg:#eef2f8}
*{box-sizing:border-box}
[hidden]{display:none!important}
svg[hidden]{display:none}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar) + 10px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
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(--accent);color:var(--accent-ink);padding:10px 14px;border-radius:8px;font-weight:600}
.skip-link:focus{top:10px}
.num{font-variant-numeric:tabular-nums lining-nums}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- top bar: slim, night-coloured over the planet */
.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:rgba(7,11,22,.94);color:#f1ede6;font-size:14px}
html.at-top .topbar{background:linear-gradient(rgba(4,8,18,.86),rgba(4,8,18,0))}
html:not(.in-story) .topbar{background:var(--bg);color:var(--ink);border-bottom:1px solid var(--line-soft)}
.brand{display:flex;align-items:center;gap:9px;font-weight:600;text-decoration:none;white-space:nowrap;min-width:0}
.brand-name{overflow:hidden;text-overflow:ellipsis}
.brand-mark{width:16px;height:16px;border-radius:50%;flex:none;background:radial-gradient(circle at 35% 35%,#7fb2e0 0 28%,#1d4f80 60%,#0a1d36 100%);box-shadow:inset -3px -2px 0 rgba(0,0,0,.35),0 0 0 1px rgba(255,255,255,.25)}
.topnav{display:none;gap:2px;margin-left:12px}
.topnav a{padding:5px 9px;border-radius:999px;text-decoration:none;opacity:.85}
.topnav a:hover{opacity:1;background:rgba(127,127,127,.12)}
@media (min-width:1180px){html:not(.in-story) .topnav{display:flex}}
.spacer{flex:1}
.chips{display:flex;gap:4px}
.chip{padding:4px 8px;border-radius:999px;text-decoration:none;font-weight:600;font-size:12.5px;border:1px solid currentColor;opacity:.75;line-height:1.3}
.chip[aria-current="page"]{opacity:1;background:rgba(255,255,255,.14)}
.icon-btn{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;border:1px solid currentColor;background:transparent;color:inherit;cursor:pointer;opacity:.85;flex:none}
@media (max-width:520px){.brand-name{max-width:42vw}.chip{padding:3px 6px;font-size:12px}}
@media (max-width:359px){.brand-name{display:none}}

/* ---------- rail */
.rail{position:fixed;right:8px;top:50%;transform:translateY(-50%);z-index:30;display:none;flex-direction:column;opacity:0;transition:opacity .4s}
html.scrolled .rail{opacity:1}
@media (min-width:1180px){.rail{display:flex}}
.rail a{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:3px 3px;text-decoration:none;font-size:12px;color:var(--ink-2)}
html.in-story .rail a{color:#e6e0d4}
.rail .dot{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.45;flex:none}
.rail a[aria-current] .dot{opacity:1;width:7px;height:7px;background:var(--accent)}
html.in-story .rail a[aria-current] .dot{background:#ffc874}
.rail .rail-label{opacity:0;transform:translateX(4px);transition:opacity .2s,transform .2s;white-space:nowrap;background:var(--bg);padding:1px 6px;border-radius:4px}
html.in-story .rail .rail-label{background:rgba(4,8,18,.85)}
.rail a:hover .rail-label,.rail a:focus-visible .rail-label{opacity:1;transform:none}

/* ---------- the story: a fixed night stage, cards scrolling over it. The story is night in both themes;
   the reader's theme applies to the method, sources and footer below it. */
.story{position:relative;color-scheme:dark;
  --bg:#060b17;--surface:#0d1528;--surface-2:#16213a;--card:rgba(7,12,26,.88);
  --ink:#eef2f8;--ink-2:#d5ddeb;--muted:#b3bfd3;--line:#2a3756;--line-soft:#1b2640;
  --accent:#ffc874;--accent-ink:#1c1104;--sea:#1d5d8f;--rock:#5b5246;--bar:#8fb0dc;--you:#ffe1ad;background:#060b17;color:var(--ink)}
@media (min-width:980px){.stage::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(7,11,22,.92) 0,rgba(7,11,22,.7) 30vw,rgba(7,11,22,0) 48vw)}}
.stage{position:sticky;top:0;height:100lvh;height:100vh;z-index:0;overflow:hidden;
  background:radial-gradient(120% 80% at 70% 40%,#0c1a33 0%,#060c1a 55%,#03060e 100%);touch-action:pan-y}
@supports (height:100lvh){.stage{height:100lvh}}
.stars{position:absolute;inset:0;background-image:
  radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.7),transparent 60%),radial-gradient(1px 1px at 72% 12%,rgba(255,255,255,.55),transparent 60%),
  radial-gradient(1.3px 1.3px at 38% 72%,rgba(255,240,220,.6),transparent 60%),radial-gradient(1px 1px at 88% 64%,rgba(255,255,255,.5),transparent 60%),
  radial-gradient(1px 1px at 22% 88%,rgba(220,235,255,.55),transparent 60%),radial-gradient(1px 1px at 56% 34%,rgba(255,255,255,.4),transparent 60%),
  radial-gradient(1.2px 1.2px at 92% 28%,rgba(255,255,255,.6),transparent 60%),radial-gradient(1px 1px at 6% 52%,rgba(255,255,255,.45),transparent 60%),
  radial-gradient(1px 1px at 64% 92%,rgba(255,255,255,.45),transparent 60%),radial-gradient(1px 1px at 46% 8%,rgba(255,255,255,.5),transparent 60%);
  background-size:520px 520px;opacity:.9}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.stage .over{pointer-events:none}
.stage .still{display:none;position:absolute;inset:auto;left:50%;top:50%;transform:translate(-50%,-50%);width:min(88vw,88vh);height:auto}
html.no-gl .stage .still{display:block}
.loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#cfd8e8;font-size:14px;letter-spacing:.02em;margin:0}
.nogl{position:absolute;left:16px;right:16px;bottom:16px;margin:0;color:#e6ecf5;font-size:14px;background:rgba(4,8,18,.8);padding:10px 12px;border-radius:10px}
.hud{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;gap:14px;align-items:baseline;color:#f3efe7;background:rgba(4,9,20,.72);border:1px solid rgba(255,255,255,.12);padding:8px 16px;border-radius:999px;font-size:14px;white-space:nowrap}
.hud-lbl{text-transform:uppercase;letter-spacing:.08em;font-size:11.5px;color:#c9d3e4}
.hud-day{font-family:var(--serif);font-size:22px;font-weight:600;color:#ffd79a;min-width:5.5ch;text-align:center}
.hud-land{color:#dfe6f2}
.stagectl{position:absolute;right:max(14px,env(safe-area-inset-right));bottom:18px;display:flex;gap:8px;z-index:3}
.sbtn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:transparent;color:inherit;cursor:pointer;text-decoration:none}
.sbtn:hover{border-color:var(--accent);color:var(--accent)}
.stage .sbtn{color:#eef2f8;border-color:rgba(255,255,255,.3);background:rgba(4,8,18,.45)}
.sbtn.big{width:44px;height:44px}
.sbtn .pl{display:none}.sbtn.is-paused .pa{display:none}.sbtn.is-paused .pl{display:inline}
@media (pointer:coarse){.sbtn{width:44px;height:44px}}

.steps{position:relative;z-index:2;margin-top:-100vh;margin-top:-100lvh;padding:0 0 30vh}
.step{min-height:96vh;display:flex;align-items:center;padding:12vh max(18px,env(safe-area-inset-left)) 12vh}
.step.hero{min-height:100vh;align-items:flex-end;padding-bottom:16vh}
.card{position:relative;width:min(470px,100%);background:var(--card);color:var(--ink);border:1px solid var(--line-soft);border-radius:16px;padding:22px 24px;
  box-shadow:0 18px 50px rgba(0,0,0,.28)}
@media (min-width:980px){.step{padding-left:max(4vw,32px)}.card{width:min(430px,36vw)}}
.hero-card{background:linear-gradient(rgba(4,8,18,.0),rgba(4,8,18,.0));border:0;box-shadow:none;color:#f4f1ea;padding:0;width:min(560px,100%)}
.hero-card .kicker{color:#ffd59a;text-transform:uppercase;letter-spacing:.12em;font-size:12.5px;font-weight:600;margin:0 0 10px}
h1{font-family:var(--serif);font-weight:600;font-size:clamp(30px,3.9vw,50px);line-height:1.08;margin:0 0 16px;letter-spacing:-.01em;text-wrap:balance;text-shadow:0 2px 18px rgba(0,0,0,.6)}
.deck{font-size:clamp(17px,1.6vw,19.5px);line-height:1.55;color:#e8edf5;margin:0 0 22px;max-width:56ch;text-shadow:0 1px 12px rgba(0,0,0,.7)}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:transparent;color:inherit;font:inherit;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer}
.hero .btn{border-color:rgba(255,255,255,.45);color:#f4f1ea;background:rgba(4,8,18,.35)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.hero .btn.primary{background:#ffc874;border-color:#ffc874;color:#1c1104}
.btn.small{min-height:44px;padding:8px 14px;font-size:14px}
.btn.clear{border-style:dashed;margin-top:8px}
.btn[data-on]{background:var(--surface-2)}
h2{font-family:var(--serif);font-weight:600;font-size:clamp(23px,2.4vw,29px);line-height:1.18;margin:0 0 12px;letter-spacing:-.005em;text-wrap:balance}
.card p{margin:0 0 12px}
.card p:last-of-type{margin-bottom:0}
.anchor{opacity:0;margin-left:.35em;font-family:var(--sans);font-size:.6em;text-decoration:none;color:var(--muted);vertical-align:middle}
h2:hover .anchor,.anchor:focus-visible{opacity:1}
.you{color:var(--you);font-weight:600}
.odo{font-size:15px;color:var(--muted);margin-top:10px!important}
.odo .num{color:var(--you);font-weight:600}

/* figures inside cards */
.fig{margin:16px 0 4px}
.fig svg,.fig canvas{display:block;width:100%;height:auto}
.fig figcaption{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.45}
.fig text{fill:var(--ink);font:13px var(--sans)}
.fig .v{font-weight:600}
.speeds .sp rect{fill:var(--bar)}
.speeds .sp.you rect{fill:var(--accent)}
.speeds .sp.you text{fill:var(--you);font-weight:600}
.speeds .sp.sound rect{fill:var(--muted);opacity:.7}
.en .track{fill:var(--surface-2)}
.en.sun rect:not(.track){fill:var(--accent)}
.en.world rect:not(.track){fill:var(--bar)}
.pk .today{fill:var(--muted);opacity:.55}
.pk .new{fill:var(--accent)}
.pk.ev text:first-child{font-weight:600}
.key .today{fill:var(--muted);opacity:.55}.key .new{fill:var(--accent)}
.fig .grid line{stroke:var(--line);stroke-width:1}
.fig .grid text,.fig .ax{fill:var(--muted);font-size:12px}
.fig .trend{stroke:var(--bar);stroke-width:2;stroke-dasharray:5 4}
.fig .pt{fill:var(--accent)}
.fig .lbl{font-weight:600}
p.key,.legend{font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;margin-top:8px}
.k{display:inline-block;width:14px;height:10px;border-radius:2px;vertical-align:middle;margin-right:4px}
.k.sea{background:var(--sea)}.k.new{background:transparent;border-top:2px solid var(--accent);height:2px}
.k.a1{background:#f4d58c}.k.a2{background:#ef5a3a}

.toggle{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.pat{min-height:44px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;color:inherit;font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.pat[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.ctl{margin-top:14px}
.ctl label{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}
.ctl .row{display:flex;align-items:center;gap:12px}
.ctl input[type=range]{flex:1;accent-color:var(--accent);min-height:44px}

/* your town */
.find{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 6px}
.combo{position:relative;flex:1 1 220px}
.combo input{width:100%;min-height:46px;padding:10px 14px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:inherit;font-size:16px}
.opts{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:10;list-style:none;margin:0;padding:4px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px rgba(0,0,0,.25);max-height:300px;overflow:auto}
.opts li{padding:10px 12px;border-radius:8px;cursor:pointer}
.opts li:hover,.opts li[aria-selected="true"]{background:var(--surface-2)}
.opts .cc{color:var(--muted);font-size:13px}
.answer{margin-top:12px;padding:14px 16px;border-radius:12px;background:var(--surface-2)}
.answer .result{font-family:var(--serif);font-size:21px;line-height:1.3;font-weight:600;margin:0 0 8px}
.near{font-size:14px;color:var(--muted);margin:4px 0 0!important;min-height:1em}
.share{display:flex;align-items:center;flex-wrap:wrap;gap:6px 10px;margin-top:14px}
.share-label{font-size:14px;color:var(--muted)}
.share-row{display:flex;gap:6px;flex-wrap:wrap}
.share-msg{font-size:13.5px;color:var(--muted);margin:6px 0 0!important;min-height:1em}

/* after the story */
.after{position:relative;z-index:3;background:var(--bg)}
.prose{max-width:720px;margin:0 auto;padding:64px 20px 30px}
.block h2{margin-top:10px}
.block p{color:var(--ink-2)}
.sources{padding-left:1.1em;color:var(--ink-2);font-size:15.5px}
.sources li{margin:6px 0}
.pageshare{border-top:1px solid var(--line-soft);padding-top:18px;margin-top:28px}
.site-footer{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;padding:26px 20px 50px;color:var(--muted);font-size:14px;border-top:1px solid var(--line-soft)}

/* phone: the planet keeps the top of the screen, the text scrolls below it */
@media (max-width:979px){
  /* the planet keeps a strip under the top bar; the text scrolls up beneath it, never over it */
  .story{padding-top:var(--topbar)}
  .stage{top:var(--topbar);height:40vh;z-index:5;border-bottom:1px solid rgba(255,255,255,.1)}
  @supports (height:40svh){.stage{height:40svh}}
  .steps{margin-top:0;padding:0 0 10vh;z-index:1}
  .step{min-height:auto;padding:22px 16px 22px;display:block}
  .step.hero{min-height:auto;padding:20px 16px 26px}
  .hero-card{color:var(--ink)}
  .hero-card .kicker{color:var(--accent)}
  h1{text-shadow:none;font-size:clamp(28px,7.4vw,38px)}
  .deck{text-shadow:none;color:var(--ink-2)}
  .hero .btn{border-color:var(--line);color:var(--ink);background:transparent}
  .hero .btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
  .card{width:100%;box-shadow:none;background:transparent;border:0;padding:0}
  .step + .step .card{border-top:1px solid var(--line-soft);padding-top:22px}
  .hud{bottom:10px;left:12px;transform:none;font-size:13px;padding:6px 12px;gap:10px}
  .hud-day{font-size:18px}
  .stagectl{bottom:10px}
  .topbar,html.at-top .topbar,html.in-story .topbar{background:#060b17;color:#f1ede6;border-bottom:0}
  html:not(.in-story) .topbar{background:var(--bg);color:var(--ink)}
}
@media (max-width:979px) and (max-height:700px){.stage{height:36svh}}
@media print{.stage,.topbar,.rail,.share,.stagectl{display:none}.steps{margin:0}.card{background:none;border:0;box-shadow:none}}