:root{--ink:#001a38;--blue:#00a0d6;--pale:#e0f8ff;--paper:#f7f6f3;--muted:#5e6873;--line:#d9d9d4;--serif:Georgia,"Times New Roman",serif;--sans:Arial,"Helvetica Neue",sans-serif;color:var(--ink);font-family:var(--sans);font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink)}
a{color:inherit}
button,input{font:inherit}
:focus-visible{outline:2px solid #006b97;outline-offset:4px}
.review-banner{position:sticky;top:0;z-index:20;background:#fff1d6;color:#513c1d;border-bottom:2px solid #c6a56a;padding:1rem clamp(1.25rem,4vw,4rem)}
.review-heading{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem 1.5rem;cursor:pointer;list-style:none}
.review-heading::-webkit-details-marker{display:none}
.review-collapse{margin-left:auto;width:.6rem;height:.6rem;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg)}
.review-banner details[open] .review-collapse{transform:rotate(225deg)}
.review-heading strong{font-size:1.15rem;line-height:1.4}
.review-access{background:#f1dfbb;color:#513c1d;border-radius:4px;padding:.4rem .65rem;font-size:.8rem;font-weight:700}
.review-banner p{max-width:80rem;font-size:.85rem;line-height:1.5;margin:.5rem 0 0}
.site-header{align-items:center;background:rgba(247,246,243,.96);border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr auto 1fr;padding:1rem clamp(1.25rem,4vw,4rem)}
.wordmark{align-items:center;display:flex;text-decoration:none;width:max-content}
.wordmark span{background:var(--blue);color:white;font-size:.78rem;font-weight:800;letter-spacing:.04em;padding:.6rem}
.wordmark b{font-size:.78rem;letter-spacing:.14em;padding:.6rem}
.site-header nav{display:flex;gap:2rem}
.site-header nav a,.text-button{background:none;border:0;color:var(--muted);font-size:.84rem;text-decoration:none}
.site-header form{justify-self:end}
.text-button{cursor:pointer}
.hero{display:grid;gap:3rem;grid-template-columns:1.2fr 1fr;align-items:center;padding:4rem clamp(1.25rem,8vw,8rem)}
.eyebrow{color:#006b97;font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.hero h1{font-size:clamp(2.2rem,4vw,4rem);font-weight:600;letter-spacing:-.04em;line-height:1.1;margin:1rem 0}
.hero-copy{color:var(--muted);font-size:1.05rem;line-height:1.65;margin:0}
.latest{background:var(--ink);color:white;padding:3rem clamp(1.25rem,8vw,8rem)}
.latest .eyebrow{color:#8eddf9}
.section-heading h2,.story h2,.downloads h2{font-size:clamp(1.8rem,3vw,2.8rem);font-weight:500;letter-spacing:-.035em;line-height:1.15;margin:.7rem 0 2rem}
.headline{border-top:1px solid #385069;padding-top:2rem}
.number{display:block;font-family:var(--serif);font-size:clamp(3.7rem,6.5vw,7rem);letter-spacing:-.05em}
.number small{color:#8eddf9;font-family:var(--sans);font-size:.25em;letter-spacing:0;margin-left:.25em}
.headline h3{font-size:1rem;margin:1rem 0 .5rem}
.headline p{color:#b9c4cf;font-size:.88rem;line-height:1.55;max-width:23rem}
.controls{align-items:center;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:1.5rem 2rem;padding:1.5rem clamp(1.25rem,8vw,8rem)}
.chart-view{border:0;margin:0;padding:0;min-width:0}
.chart-view legend{color:var(--muted);font-size:.75rem;margin-bottom:.5rem;padding:0}
.segmented-control{display:flex;background:#e7e8e7;border:1px solid var(--line);border-radius:10px;padding:4px}
.segmented-control label,.switch{cursor:pointer;font-size:.85rem;position:relative}
.segmented-control input,.switch input{position:absolute;opacity:0;width:1px;height:1px;margin:0}
.segmented-control span{display:block;border-radius:6px;padding:.75rem 1rem;color:var(--muted)}
.segmented-control input:checked+span{background:white;box-shadow:0 1px 4px #001a3820;color:var(--ink);font-weight:700}
.segmented-control input:focus-visible+span,.switch input:focus-visible+.switch-track{outline:2px solid #006b97;outline-offset:3px}
.switch{display:flex;align-items:center;gap:.65rem;min-height:44px;line-height:1.4}
.switch-track{background:#89949d;border:1px solid transparent;border-radius:20px;flex-shrink:0;width:38px;height:22px;padding:2px}
.switch-track::after{content:"";display:block;background:white;border-radius:50%;width:16px;height:16px;box-shadow:0 1px 2px #001a3830}
.switch input:checked+.switch-track{background:#006b97}
.switch input:checked+.switch-track::after{transform:translateX(16px)}
.story{align-items:center;display:grid;gap:5vw;grid-template-columns:minmax(16rem,.75fr) minmax(0,1.25fr);padding:4rem clamp(1.25rem,8vw,8rem)}
.story h2{margin:1rem 0 1.5rem}
.story-copy>p{color:var(--muted);line-height:1.65}
.caveat{border-top:1px solid var(--line);font-size:.84rem;margin-top:2rem;padding-top:1.5rem}
.chart-panel{background:white;border:1px solid var(--line);padding:1.5rem;min-width:0}
.chart-panel .chart-view{width:fit-content;max-width:100%;margin-bottom:1.5rem}
.chart svg{display:block;overflow:visible;width:100%}
.chart .grid{stroke:#e7e8e8}
.chart .axis-label{fill:#64717d;font-size:11px}
.chart .line{fill:none;stroke-width:3}
.chart .dot{stroke:white;stroke-width:2}
.chart .legend{display:flex;flex-wrap:wrap;gap:1rem;font-size:.75rem;margin-top:1rem}
.chart .legend i{border-radius:50%;display:inline-block;height:.65rem;margin-right:.35rem;width:.65rem}
.tooltip{background:#f5fcff;color:var(--ink);border:1px solid #c8e3ed;border-left:3px solid var(--metric-color);border-radius:8px;box-shadow:0 4px 18px #001a381a;font-size:.8rem;padding:.7rem .9rem;pointer-events:none;position:fixed;z-index:30;max-width:calc(100vw - 16px)}
.tooltip small,.tooltip span,.tooltip strong{display:block}
.tooltip small{color:var(--muted);margin-bottom:.35rem}
.tooltip strong{font-size:1.15rem;margin-top:.3rem;font-variant-numeric:tabular-nums}
.chart-active-point{position:fixed;transform:translate(-50%,-50%);border-radius:50%;background:var(--metric-color);border:2px solid white;box-shadow:0 0 0 2px var(--metric-color);pointer-events:none;z-index:15}
.regions{padding:4rem clamp(1.25rem,8vw,8rem)}
.section-heading>p:last-child{color:var(--muted);line-height:1.6;max-width:42rem}
.region-list{display:grid;grid-template-columns:repeat(3,1fr)}
.region-period{color:var(--muted);font-size:.85rem;line-height:1.5;margin:1.25rem 0 0}
.region-list article{border-bottom:1px solid var(--line);padding:1.5rem 1.5rem 1.5rem 0}
.region-list article:not(:nth-of-type(3n+1)){border-left:1px solid var(--line);padding-left:1.5rem}
.region-list h3{font-size:.85rem;margin:0}
.region-list strong{display:block;font-family:var(--serif);font-size:2.2rem;font-weight:400;margin-top:1.4rem}
.spark{width:100%;margin-top:1rem}
.spark svg{display:block;height:45px;width:100%}
.method{background:var(--pale);padding:4rem clamp(1.25rem,8vw,8rem)}
.method-grid{display:grid;grid-template-columns:1fr 1fr}
.method details{border-top:1px solid #9bcbdc;padding:1.5rem 2rem 1.5rem 0}
.method details:nth-child(even){padding-left:2rem}
.method summary{cursor:pointer;font-size:1.1rem}
.method details p,.method details ul{color:#385268;font-size:.9rem;line-height:1.6}
.downloads{align-items:end;display:grid;gap:5rem;grid-template-columns:1fr 1fr;padding:4rem clamp(1.25rem,8vw,8rem)}
.downloads p{color:var(--muted);line-height:1.6}
.download-links{border-top:1px solid var(--line)}
.download-links a{display:flex;font-weight:700;justify-content:space-between;padding:1.5rem 0;text-decoration:none;border-bottom:1px solid var(--line)}
.download-links span{color:var(--blue);font-size:1.2rem}
footer{background:var(--ink);color:#b9c4cf;display:flex;gap:1rem;font-size:.75rem;justify-content:space-between;padding:2rem clamp(1.25rem,4vw,4rem)}
.empty{border:1px solid currentColor;padding:2rem}
.auth-shell{background:var(--ink);display:grid;min-height:100vh;place-items:center;padding:1.5rem}
.auth-panel{background:var(--paper);max-width:40rem;padding:clamp(2rem,7vw,4rem);width:100%}
.auth-panel h1{font-size:clamp(2rem,5vw,3rem);font-weight:600;letter-spacing:-.04em;line-height:1.1;margin:2rem 0 1.5rem}
.auth-panel>p:not(.eyebrow):not(.fine-print){color:var(--muted);font-size:1.05rem;line-height:1.6}
.button{background:#006b97;color:white;display:block;font-weight:700;margin-top:2.5rem;padding:1rem;text-align:center;text-decoration:none}
.fine-print{color:var(--muted);font-size:.8rem;margin-top:1rem;text-align:center}
@media(max-width:800px){
  .site-header{grid-template-columns:1fr auto}
  .site-header nav{display:none}
  .hero{grid-template-columns:1fr;gap:1rem;padding-top:2rem;padding-bottom:2rem}
  .region-list,.method-grid,.downloads{grid-template-columns:1fr}
  .region-list article:not(:nth-of-type(3n+1)){border-left:0;padding-left:0}
  .story{grid-template-columns:1fr;padding-bottom:3rem;padding-top:3rem}
  .controls{align-items:flex-start;flex-direction:column;gap:1rem}
  .method details:nth-child(even){padding-left:0}
  .downloads{gap:2rem}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}