:root{--paper:#fff;--canvas:#f1f1f1;--ink:#000;--wireframe-text:#000;--line:#bdbdbd;--light:#e8e8e8;--panel:#f7f7f7;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--canvas);color:var(--ink);font:16px/1.55 Arial,Helvetica,sans-serif}
h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15;letter-spacing:-.035em;font-family:Arial,Helvetica,sans-serif;font-weight:600}
h1{font-size:clamp(2.3rem,4.6vw,3.9rem)}h2{font-size:clamp(1.75rem,3.1vw,2.6rem)}h3{font-size:1.5rem}
p{color:var(--wireframe-text)}a{color:inherit;text-underline-offset:4px}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible{outline:3px solid #242424;outline-offset:5px}
.eyebrow,.kicker,.wireframe-label,.section-label,.card-no,.num,.tag{font:500 .875rem/1.5 var(--mono);letter-spacing:.045em;text-transform:uppercase;color:var(--wireframe-text)}
.wireframe-bar{max-width:1200px;margin:0 auto;padding:18px 0;display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:.875rem}.wireframe-bar nav{display:flex;gap:8px;flex-wrap:wrap}.wireframe-bar a{text-decoration:none;padding:7px 12px;border:1px solid transparent}.wireframe-bar a:hover{border-color:var(--line)}.wireframe-bar a[aria-current=page]{background:#fff;border-color:var(--ink)}
.status-label{font:400 .8125rem/1.5 var(--mono);border:1px solid var(--line);padding:5px 9px;color:var(--wireframe-text)}
.piece,.landing{max-width:1200px;margin:0 auto 36px;background:var(--paper);border:1px solid var(--line)}
.mast,.nav{min-height:88px;padding:20px 48px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}
.logo,.brand{font:500 .875rem/1.4 var(--mono);border:1px dashed #888;padding:14px 18px;letter-spacing:0;color:var(--wireframe-text)}.mast>span{font:400 .8125rem var(--mono);color:var(--wireframe-text)}
.nav-links{display:flex;gap:22px;align-items:center;flex-wrap:wrap;font-size:.875rem}.nav-links a{text-decoration:none}.nav-links a:hover{text-decoration:underline}
.button{display:inline-block;background:#fff;border:1px solid var(--ink);padding:12px 20px;color:var(--ink);font:600 1rem/1.4 Arial,Helvetica,sans-serif;text-decoration:none}.button:hover{background:var(--light)}.button:disabled{background:#e5e5e5;color:var(--ink);opacity:1;border:1px dashed #888;cursor:default}
.hero{padding:54px 48px;background:var(--panel);border-bottom:1px solid var(--line)}.standalone-hero{display:grid;grid-template-columns:1fr 215px;gap:48px;align-items:center}.hero h1{max-width:800px;margin:20px 0}.hero p{max-width:660px;margin-bottom:0;font-size:1.125rem}.hero-mark{border:1px dashed #888;background:#fff;padding:26px 20px;text-align:center}.hero-mark span,.hero-mark i{display:block;color:var(--wireframe-text);font:400 .875rem/1.5 var(--mono)}.hero-mark b{font:500 2.6rem/1.2 Arial,Helvetica,sans-serif;display:block;margin:16px 0;letter-spacing:-.04em}
.intro{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:48px}.intro h2{margin:0}.intro p{margin:0}
.ribbon,.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line)}.ribbon{margin:0 48px}.ribbon>div,.stat{padding:26px;border-right:1px solid var(--line)}.ribbon>div:last-child,.stat:last-child{border-right:0}.ribbon b,.stat b{display:block;font:500 2.15rem/1.2 Arial,Helvetica,sans-serif;color:var(--ink);letter-spacing:-.035em}.ribbon span,.stat span{display:block;font-size:.875rem;color:var(--wireframe-text);margin-top:10px}
.resources{padding:48px}.section-label{display:flex;align-items:center;gap:16px;margin-bottom:22px}.section-label:after{content:'';height:1px;background:var(--line);flex:1}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.card{border:1px solid var(--line);padding:28px;display:flex;flex-direction:column;min-width:0}.card-top{display:flex;align-items:start;justify-content:space-between;gap:12px}.tag{font-size:.75rem;border:1px dashed var(--line);padding:3px 7px;text-align:center;letter-spacing:0}.card h3{margin:24px 0 12px}.card p{margin-bottom:24px}.data{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}.data small,.value-chart small{font:400 .75rem/1.5 var(--mono);color:var(--wireframe-text);display:block;margin-bottom:10px}.data svg{width:100%;height:48px;display:block}
.moment{display:grid;grid-template-columns:1fr 1fr;background:var(--panel);border-block:1px solid var(--line)}.moment-copy,.chart-panel{padding:42px 48px}.moment h2{margin:18px 0}.moment p{margin-bottom:0}.chart-panel{border-left:1px solid var(--line);background:#fff}.chart-panel h3{font:400 .875rem/1.5 var(--mono);letter-spacing:0}.chart-panel svg{width:100%;height:auto;display:block;margin-top:24px}.sample-note{font:400 .75rem/1.5 var(--mono);color:var(--wireframe-text);margin:14px 0 0}
.events{padding:48px;display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center}.events h2{margin:16px 0}.events p{margin:0}.barset{display:grid;gap:18px}.barrow{display:grid;grid-template-columns:135px 1fr 42px;gap:12px;align-items:center;font-size:.875rem}.barline{height:14px;background:var(--light)}.barline i{height:100%;display:block;background:#777}.barrow b{font:500 .875rem var(--mono)}
.footer,.source{padding:24px 48px;border-top:1px solid var(--line);font-size:.875rem;color:var(--wireframe-text)}.footer b,.source b{color:var(--ink)}
.wrap{width:calc(100% - 96px);margin-inline:auto}.hero-in{max-width:850px}.nav-note{font-size:.875rem;color:var(--wireframe-text);margin-top:22px}.stats{margin-top:32px;background:#fff}.section{padding-block:60px}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.section h2{margin:18px 0}.value-list{border-top:1px solid var(--line)}.value{display:grid;grid-template-columns:30px minmax(0,1fr) 145px;gap:16px;padding:24px 0;border-bottom:1px solid var(--line)}.value h3{font-size:1.375rem;margin:0 0 10px}.value p{margin:0}.value-chart{align-self:center;min-width:0}.value-chart svg{width:100%;height:auto;display:block}
.chart-band{background:var(--panel);padding:48px 0;border-block:1px solid var(--line)}.chart-shell{background:#fff;border:1px solid var(--line);padding:30px}.chart-top{display:flex;justify-content:space-between;gap:24px}.chart-top h3{margin:12px 0}.chart-top p{margin:0;font-size:.875rem}.metric{font-size:2.3rem;line-height:1.2;white-space:nowrap}.metric small{display:block;white-space:normal;font:400 .75rem/1.5 var(--mono);color:var(--wireframe-text);margin-top:8px}.chart{margin-top:30px}.chart svg{width:100%;height:auto;display:block}.chart-scale-note{margin-top:10px;font-size:.8125rem;color:var(--wireframe-text)}
.do{padding-block:48px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.do-card{border:1px solid var(--line);padding:30px;background:var(--panel)}.do-card h3{margin:18px 0}.do-card p{margin:0}
.quote{border-block:1px solid var(--line);padding:48px;background:var(--panel)}.quote blockquote{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.35;max-width:880px;margin:18px 0}.quote cite{display:block;font:400 .875rem/1.5 var(--mono);color:var(--wireframe-text)}.cta{padding-block:56px;text-align:center}.cta h2{max-width:640px;margin:18px auto 28px}.cta-note{font-size:.875rem;margin:14px auto 0}
.wireframe-index{max-width:1080px;margin:48px auto;background:var(--paper);border:1px solid var(--line)}.index-header{padding:24px 36px;display:flex;justify-content:space-between;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.index-intro{padding:52px 36px 34px}.index-intro h1{margin:16px 0 22px}.index-intro>p:last-child{max-width:660px;font-size:1.125rem;margin:0}.concept-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding:0 36px 42px}.concept-card{display:flex;flex-direction:column;border:1px solid var(--line);padding:30px;text-decoration:none}.concept-card:hover{background:var(--panel);border-color:var(--ink)}.concept-card h2{margin:26px 0 18px;font-size:1.875rem}.concept-card p{margin:0 0 36px}.concept-link{display:flex;justify-content:space-between;gap:20px;margin-top:auto;font-size:.875rem;font-weight:600;padding-top:16px;border-top:1px solid var(--line)}.index-footer{padding:22px 36px;border-top:1px solid var(--line);font-size:.875rem;color:var(--wireframe-text)}
@media(max-width:1240px){.wireframe-bar{margin-inline:20px}.piece,.landing{margin-inline:20px}.wireframe-index{margin:28px 20px}}
@media(max-width:850px){.split{grid-template-columns:1fr;gap:30px}.standalone-hero{grid-template-columns:1fr;gap:28px}.hero-mark{max-width:260px}.moment{grid-template-columns:1fr}.chart-panel{border-left:0;border-top:1px solid var(--line)}.events{grid-template-columns:1fr;gap:30px}.nav{align-items:start;flex-direction:column}.concept-grid{gap:16px}.concept-card{padding:24px}}
@media(max-width:600px){.wireframe-bar{align-items:start;flex-direction:column;gap:8px;margin-inline:16px}.wireframe-bar a{padding-inline:8px}.piece,.landing{margin:0 12px 20px}.mast,.nav,.hero,.intro,.resources,.moment-copy,.chart-panel,.events,.footer,.source,.quote{padding:28px 22px}.mast{align-items:start;flex-direction:column;gap:14px}.nav-links{gap:16px}.nav-links .button{font-size:.875rem;padding:8px 12px}.intro,.card-grid,.do,.concept-grid{grid-template-columns:1fr}.intro{gap:20px}.ribbon{margin-inline:22px}.ribbon,.stats{grid-template-columns:1fr}.ribbon>div,.stat{border-right:0;border-bottom:1px solid var(--line)}.ribbon>div:last-child,.stat:last-child{border-bottom:0}.wrap{width:calc(100% - 44px)}.section{padding-block:36px}.value{grid-template-columns:24px 1fr;gap:12px}.value-chart{grid-column:2;max-width:210px;width:100%}.chart-top{flex-direction:column}.chart-shell{padding:20px}.chart-band{padding-block:28px}.barrow{grid-template-columns:112px 1fr 40px;gap:8px}.card{padding:22px}.card-top{flex-wrap:wrap}.do{padding-block:28px}.do-card{padding:24px}.wireframe-index{margin:20px 12px}.index-header{padding:22px;align-items:start;flex-direction:column;gap:12px}.index-intro{padding:32px 22px}.concept-grid{padding:0 22px 28px;gap:20px}.index-footer{padding:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body{background:white}.wireframe-bar{display:none}.piece,.landing,.wireframe-index{margin:0;border:0;max-width:none}.card,.do-card,.chart-shell,.quote,.ribbon,.stats{break-inside:avoid}.button{color:var(--ink);background:#fff}.hero,.chart-band,.quote{background:#f7f7f7}}

.chart,.trend-chart{overflow-x:auto}.chart svg{min-width:760px}.trend-chart svg{min-width:400px}.chart:focus-visible,.trend-chart:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
@media print{.chart,.trend-chart{overflow:visible}.chart svg,.trend-chart svg{min-width:0}}

svg text{fill:var(--ink)}