:root{--bg:#f8f8fb;--paper:#fff;--ink:#202333;--muted:#626775;--line:#dedfe9;--accent:#7044d9;--wash:#eee8fb;--positive:#286444;--negative:#a1363d}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}
body.hyper{--bg:#0a0a0b;--paper:#121518;--ink:#f0f0f2;--muted:#b2b7c1;--line:#30363c;--accent:#7dea9b;--wash:#163326;--positive:#7dea9b;--negative:#ffa69f}
a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{max-width:100%;height:auto}
.skip{position:absolute;left:16px;top:-100px;padding:10px;background:var(--paper);z-index:10}.skip:focus{top:12px}.shell{max-width:1192px;padding:0 32px;margin:auto}.masthead{border-bottom:1px solid var(--line)}.masthead .shell{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:82px}.brand{font-size:22px;font-weight:750;letter-spacing:-.6px;text-decoration:none;color:var(--ink)}.brand i{font-style:normal;color:var(--accent)}nav{display:flex;gap:22px;align-items:center;font-size:14px}nav a{color:var(--muted);text-decoration:none}.lang{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--muted)}
.crumbs{font-size:13px;color:var(--muted);padding:30px 0 0}.crumbs a{color:var(--muted)}.hero{padding:34px 0 45px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(290px,.8fr);gap:64px;align-items:center}.eyebrow{font-size:12px;letter-spacing:1.8px;text-transform:uppercase;color:var(--accent);font-weight:750}.hero h1{font-size:clamp(34px,4.5vw,54px);line-height:1.12;letter-spacing:-1.9px;margin:17px 0 24px;font-weight:750}.dek{font-size:19px;line-height:1.6;color:var(--muted);margin:0}.byline{font-size:12px;color:var(--muted);margin-top:24px}.hero-panel{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:28px}.panel-title{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin:0 0 14px}.hero-panel .big{font-size:60px;line-height:1.12;font-weight:750;letter-spacing:-2px;display:block}.hero-panel .small{font-size:13px;color:var(--muted);display:block}.result-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:22px 0}.result-pair strong{font-size:37px;letter-spacing:-1px;display:block;line-height:1.2}.positive{color:var(--positive)}.negative{color:var(--negative)}.hero-panel hr{border:0;border-top:1px solid var(--line);margin:18px 0}.hero-panel p{font-size:13px;line-height:1.6;margin:0;color:var(--muted)}
.article-layout{border-top:1px solid var(--line);display:grid;grid-template-columns:minmax(0,760px) 240px;gap:72px;padding-top:38px;padding-bottom:72px}.prose p{margin:0 0 23px}.prose h2{font-size:29px;line-height:1.25;letter-spacing:-.65px;margin:54px 0 20px}.prose h2:first-child{margin-top:0}.prose h3{font-size:20px;line-height:1.4;margin:28px 0 12px}.prose ul,.prose ol{padding-left:24px;margin:18px 0 28px}.prose li{margin:10px 0}.prose li::marker{color:var(--accent)}.note{border-left:3px solid var(--accent);background:var(--wash);padding:19px 23px;margin:28px 0;font-size:15px;line-height:1.7}.note p:last-child{margin:0}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:24px 0}table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;text-align:left;background:var(--paper)}caption{text-align:left;padding:15px 18px;font-weight:650;background:var(--wash);font-size:13px}th,td{padding:14px 18px;vertical-align:top;border-bottom:1px solid var(--line)}tr:last-child td{border-bottom:0}th{font-size:12px;letter-spacing:.2px;color:var(--muted);font-weight:700}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.formula{font:15px/1.9 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:normal;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px;overflow-wrap:anywhere;margin:24px 0}.result{font-weight:750;color:var(--accent)}.download{display:inline-flex;padding:11px 17px;border:1px solid var(--accent);border-radius:9px;text-decoration:none;font-size:14px;font-weight:650;margin:0 12px 16px 0}.sources{font-size:14px;color:var(--muted)}.disclosure{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:24px;margin-top:40px}.aside{font-size:13px}.aside-inner{position:sticky;top:30px}.aside-title{font-size:11px;font-weight:750;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted)}.aside ol{list-style:none;padding:0;border-left:1px solid var(--line)}.aside li{margin:12px 0;padding-left:16px;line-height:1.6}.aside a{text-decoration:none;color:var(--muted)}.aside a:hover{color:var(--accent)}.aside .tool-link{display:block;color:var(--accent);border-top:1px solid var(--line);padding-top:18px;margin-top:24px;font-weight:650}.footer{border-top:1px solid var(--line);font-size:13px;color:var(--muted);padding:26px 0 36px}.footer .shell{display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}.footer a{color:var(--muted)}.index{max-width:850px;padding:72px 32px 100px;margin:auto}.index h1{font-size:clamp(38px,6vw,60px);line-height:1.12;letter-spacing:-2px;margin:15px 0 24px}.index .dek{max-width:650px}.resource-card{display:block;border:1px solid var(--line);border-radius:18px;padding:30px;background:var(--paper);margin-top:36px;text-decoration:none;color:var(--ink)}.resource-card h2{font-size:29px;line-height:1.25;letter-spacing:-.7px;margin:15px 0}.resource-card p{color:var(--muted);font-size:16px;margin:0 0 20px}.resource-card span{font-size:13px;color:var(--accent);font-weight:650}
@media(max-width:900px){.hero{gap:30px}.article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:800px}.aside{display:none}.hero-panel{padding:22px}.hero-panel .big{font-size:48px}.result-pair strong{font-size:32px}}
@media(max-width:650px){body{font-size:16px}.shell{padding:0 22px}.masthead .shell{min-height:70px;gap:12px}nav{gap:14px;font-size:12px}.brand{font-size:20px}.lang{display:none}.crumbs{padding-top:22px;font-size:12px}.hero{grid-template-columns:1fr;padding:24px 0 34px;gap:28px}.hero h1{font-size:38px;letter-spacing:-1.3px}.dek{font-size:17px}.hero-panel .big{font-size:44px}.article-layout{padding-top:30px;padding-bottom:45px}.prose h2{font-size:26px;margin-top:40px}.note{padding:16px 18px}.table-wrap{margin:22px 0}th,td{padding:12px;font-size:13px}.formula{font-size:13px;padding:16px}.index{padding:42px 22px 60px}.resource-card{padding:24px}.resource-card h2{font-size:26px}.footer .shell{display:block}.footer p{margin:6px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body,body.hyper{--bg:#fff;--paper:#fff;--ink:#000;--muted:#333;--line:#bbb;--accent:#333;--wash:#f5f5f5;--positive:#000;--negative:#000;font-size:11pt}.masthead,.aside,.skip,.download,.footer{display:none}.shell{max-width:none;padding:0}.hero{grid-template-columns:1.5fr 1fr;gap:24px;padding:12px 0 20px}.hero h1{font-size:28pt}.dek{font-size:12pt}.article-layout{display:block;padding:20px 0}.prose h2{font-size:17pt;break-after:avoid}.table-wrap,.hero-panel,.note{break-inside:avoid}a{color:#000}.formula{font-size:10pt}.hero-panel .big{font-size:36pt}.byline{font-size:9pt}}