@font-face{font-family:Atkinson;src:url('./font.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{color-scheme:light;--bg:#fff;--surface:#f1f5f9;--text-primary:#090d16;--text-secondary:#1e293b;--muted:#475569;--line:#c0c9d5;--accent:#ffe34d;--accent-ink:#090d16;--map:#123ead;--map-text:#fff;--road:#edf2ff;--road-ink:#102a68;--focus:#794100;--positive:#14532d;--negative:#9f1239}
:root[data-theme=dark]{color-scheme:dark;--bg:#101725;--surface:#1b2638;--text-primary:#f8fafc;--text-secondary:#e2e8f0;--muted:#cbd5e1;--line:#52627a;--accent:#ffe34d;--accent-ink:#090d16;--map:#102f7c;--map-text:#fff;--road:#edf2ff;--road-ink:#102a68;--focus:#ffe34d;--positive:#a7f3d0;--negative:#fda4af}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px;scrollbar-color:var(--muted) var(--bg)}body{margin:0;background:var(--bg);color:var(--text-primary);font-family:Atkinson,Arial,sans-serif;font-size:18px;line-height:1.5}::selection{background:var(--accent);color:var(--accent-ink)}a{color:inherit;text-underline-offset:5px}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.7}:focus-visible{outline:3px solid var(--focus);outline-offset:5px}button{border:1px solid var(--line);background:var(--bg);color:var(--text-primary);border-radius:8px;min-height:48px;padding:10px 18px}button:hover{border-color:var(--text-primary)}button[aria-pressed=true],.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent-ink)}[hidden]{display:none!important}.skip{position:absolute;left:16px;top:-100px;z-index:10;background:var(--bg);padding:10px}.skip:focus{top:8px}header,main,footer{max-width:1600px;margin:auto}header{display:flex;justify-content:space-between;align-items:center;padding:22px 5%;gap:16px}header>a{text-decoration:none;font-weight:750;letter-spacing:-.025em}nav{display:flex;gap:18px;align-items:center;font-size:15px}nav a{min-height:44px;display:inline-flex;align-items:center}nav button{font-size:14px;padding:8px 12px;min-height:44px}.hero{display:grid;grid-template-columns:.85fr 1.15fr;padding:36px 5% 64px;gap:5%;align-items:center}.intro h1{font-size:clamp(44px,5.7vw,84px);line-height:1.03;letter-spacing:-.035em;font-weight:800;margin:0 0 24px;text-wrap:balance}.intro .deck{font-size:22px;line-height:1.4;max-width:32ch;margin:0 0 28px;color:var(--text-secondary)}.prediction{border:0;padding:0;margin:0}.prediction legend{font-weight:750;margin-bottom:12px;font-size:17px}.choices{display:flex;flex-wrap:wrap;gap:8px}.choices button{font-size:16px;padding:10px 13px}.small{font-size:14px;color:var(--muted)}.intro .small{max-width:43ch;margin-top:22px}.reveal{margin-top:18px}.reveal h2{font-size:32px;line-height:1.12;margin:0 0 10px;letter-spacing:-.02em}.reveal p{font-size:18px;max-width:40ch;margin:0 0 18px}.map-panel{background:var(--map);color:var(--map-text);border-radius:22px;overflow:hidden;align-self:stretch;min-height:480px;display:flex;flex-direction:column;justify-content:space-between}.map-top{display:flex;justify-content:space-between;padding:22px 26px;align-items:center;font-size:16px;gap:12px}.map-top strong{font-size:24px;font-variant-numeric:tabular-nums}.map-panel svg{display:block;width:100%;height:auto;min-height:260px;overflow:visible}.road{fill:none;stroke:var(--road);stroke-width:20;stroke-linecap:round;stroke-linejoin:round}.connector{stroke:var(--accent);stroke-width:13;stroke-dasharray:8 15}.map-panel[data-open=true] .connector{stroke-dasharray:none}.junction{fill:var(--map);stroke:var(--road);stroke-width:5}.node-text{fill:var(--map-text);font-size:17px;font-weight:750;text-anchor:middle;dominant-baseline:central}.edge-label{fill:var(--map-text);font-size:19px;text-anchor:middle;font-weight:650}.link-label{fill:var(--accent);font-size:15px;text-anchor:middle;font-weight:700}.car{fill:var(--road-ink);stroke:var(--road);stroke-width:1.5}.map-bottom{padding:16px 26px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}.map-bottom p{margin:0;max-width:38ch}.map-bottom button{background:var(--map);color:var(--map-text);border-color:var(--map-text);padding:5px 10px;font-size:13px;min-width:78px}.lab{margin:0 5%;padding:38px 0 56px;border-top:1px solid var(--line)}.lab-head{display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:28px}h2{font-size:clamp(28px,3vw,40px);letter-spacing:-.025em;line-height:1.15;margin:0 0 14px}.lab-head p{margin:0;max-width:60ch;color:var(--text-secondary)}.lab-grid{display:grid;grid-template-columns:1fr 1fr;gap:6%}.demand-label{display:flex;justify-content:space-between;gap:12px;font-weight:650}.demand-label output{font-size:24px;font-variant-numeric:tabular-nums}input[type=range]{width:100%;min-height:44px;accent-color:var(--map);cursor:pointer}:root[data-theme=dark] input[type=range]{accent-color:var(--accent)}.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:14px}.presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.presets button{font-size:15px}.comparison{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);padding-bottom:20px;gap:12px}.comparison span{display:block;font-size:15px}.comparison strong{font-size:42px;letter-spacing:-.025em;font-variant-numeric:tabular-nums}.difference{font-size:21px;font-weight:700;margin:20px 0 0}.difference[data-sign=positive]{color:var(--negative)}.difference[data-sign=negative]{color:var(--positive)}.distribution{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px;font-size:14px}.distribution span{background:var(--surface);padding:6px 10px;border-radius:5px}.explanation{background:var(--surface);padding:64px 8%;display:grid;grid-template-columns:1fr 1.2fr;gap:10%}.explanation p{color:var(--text-secondary);max-width:65ch}.explanation h3{font-size:23px;margin:28px 0 10px}.formula{font-size:24px;font-weight:750;letter-spacing:-.015em}.explanation details{border-top:1px solid var(--line);margin-top:28px;padding-top:20px}.explanation summary{cursor:pointer;font-weight:700;min-height:44px}.explanation li{margin-bottom:12px}.share-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}footer{padding:30px 5%;display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;font-size:15px}.nojs{padding:20px;background:var(--surface)}
@media(max-width:800px){header{padding:14px 5%;gap:8px}nav{gap:12px}.hero{grid-template-columns:1fr;gap:28px;padding-top:22px;padding-bottom:38px}.intro h1{font-size:clamp(42px,11.5vw,70px);max-width:12ch;margin-bottom:18px}.intro .deck{font-size:20px;max-width:38ch;margin-bottom:22px}.intro .small{margin-top:16px}.map-panel{min-height:360px;border-radius:16px}.map-top{padding:18px 20px}.map-top strong{font-size:22px}.map-bottom{padding:12px 18px 20px}.map-panel svg{min-height:220px}.lab{padding:30px 0 38px}.lab-head,.lab-grid{display:block}.lab-head>button{margin-top:18px}.comparison{margin-top:30px}.explanation{display:block;padding:40px 6%}.explanation>div+div{margin-top:38px}.explanation h2{max-width:18ch}.comparison strong{font-size:36px}.reveal h2{font-size:29px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
.map-panel :focus-visible{outline-color:var(--accent)}