:root{--ink:#142b3a;--muted:#536979;--paper:#f6f8fa;--line:#dbe4ea;--blue:#1764d6;--teal:#087e8b;--amber:#ab6000;--nav:#102536;--white:#fff;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--blue);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:3px solid #f4b544;outline-offset:5px}
.skip{position:absolute;left:16px;top:-70px;background:white;padding:12px;z-index:9}
.skip:focus{top:12px}
.top{background:var(--nav);color:#e6eef4}
.top-inner{max-width:1240px;margin:auto;padding:20px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{text-decoration:none;color:white;display:flex;align-items:center;gap:12px;font-size:17px;font-weight:750;letter-spacing:.2px}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid #6892ad;border-radius:10px;color:#8bdade;font-family:var(--mono)}
.org{color:#b6c9d7;text-decoration:none;text-align:right;line-height:1.5}
.org strong{display:block;color:#edf5fa;font-size:12px;letter-spacing:1.8px;text-transform:uppercase}
.org span{display:block;font-size:11px;letter-spacing:.1px}
.org:hover strong{text-decoration:underline;text-underline-offset:4px}
.layout{max-width:1240px;margin:auto;display:grid;grid-template-columns:210px minmax(0,1fr);gap:42px;padding:34px 28px 68px}
.side{align-self:start;position:sticky;top:25px}
.nav-label,.eyebrow{font-size:11px;font-weight:750;text-transform:uppercase;letter-spacing:1.8px;color:var(--muted)}
.side nav{display:grid;gap:5px;margin:12px 0 26px}
.side a{padding:9px 12px;border-radius:7px;color:var(--muted);text-decoration:none;font-size:14px}
.side a:hover{background:#eaf0f5;color:var(--ink)}
.side a[aria-current=page]{color:var(--blue);background:#e8f0fe;font-weight:750}
.side small{display:block;margin-top:12px;font-size:12px;color:var(--muted)}
main{min-width:0}
.hero{border-bottom:1px solid var(--line);padding-bottom:27px;margin-bottom:28px}
h1{font-size:clamp(32px,4vw,49px);line-height:1.12;letter-spacing:-1.8px;margin:10px 0 17px}
h2{font-size:25px;letter-spacing:-.6px;line-height:1.25;margin:37px 0 15px}
h3{font-size:18px;line-height:1.3;margin:0 0 10px}
p{margin:0 0 16px}
.lead{font-size:18px;max-width:750px;color:var(--muted);line-height:1.6}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.tag{background:#fff;border:1px solid var(--line);border-radius:99px;padding:4px 11px;font-size:12px;color:var(--muted)}
.tag.verified{color:#12653c;background:#edf8f1;border-color:#b9dec8}
.figure{background:white;border:1px solid var(--line);border-radius:12px;padding:16px;margin:20px 0}
.figure img{display:block;width:100%;height:auto}
figcaption{font-size:13px;color:var(--muted);padding:12px 5px 0;line-height:1.5}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin:20px 0}
.card{background:white;border:1px solid var(--line);border-radius:10px;padding:21px;min-width:0}
.card p{font-size:14px;color:var(--muted)}
.card a{font-size:13px;font-weight:650}
.card .number{font:12px var(--mono);color:var(--blue);display:block;margin-bottom:15px}
.card p:last-child{margin-bottom:0}
.callout{border-left:3px solid var(--teal);padding:16px 20px;background:#eaf5f5;margin:20px 0;border-radius:0 8px 8px 0}
.callout p{margin-bottom:0;font-size:14px}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:22px 0}
.fact{border-top:2px solid var(--blue);padding:13px 0}
.fact b{display:block;font-size:28px;line-height:1.2}
.fact span{font-size:12px;color:var(--muted)}
.table-wrap{overflow-x:auto;margin:18px 0 25px;border:1px solid var(--line);border-radius:9px;background:white}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:12px 15px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:650;background:#edf2f7}
tr:last-child td{border-bottom:0}
td:first-child{font-weight:600}
code{font-family:var(--mono);font-size:.88em;background:#e9eff4;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}
pre{background:var(--nav);color:#d9edf3;border-radius:9px;padding:20px;overflow:auto;line-height:1.65;font-size:13px}
pre code{background:none;padding:0;color:inherit;white-space:pre;overflow-wrap:normal}
.steps{padding-left:22px}
.steps li{margin:12px 0;padding-left:5px}
.steps strong{color:var(--ink)}
.small{font-size:13px;color:var(--muted)}
.source-links{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;margin:20px 0}
.footer{border-top:1px solid var(--line);padding-top:22px;margin-top:42px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}
.signature>a{font-weight:700;text-decoration:none}
.signature small{display:inline-block;margin-top:7px;font-size:11px}
.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.path{font-family:var(--mono);font-size:12px;overflow-wrap:anywhere}
.legend{display:flex;gap:20px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:8px 0}
.swatch{display:inline-block;width:17px;height:3px;vertical-align:middle;margin-right:6px;background:var(--blue)}
.swatch.data{background:var(--teal)}
.swatch.matrix{background:var(--amber)}

@media(max-width:960px){.layout{grid-template-columns:165px minmax(0,1fr);gap:24px;padding:24px 20px}
.cards{grid-template-columns:1fr}
.cards.two{grid-template-columns:1fr 1fr}
.facts{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:640px){.layout{display:block;padding:20px 16px 40px}
.side{position:static;margin-bottom:26px}
.side nav{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0}
.side nav a{padding:7px 9px;font-size:12px}
.side .secondary,.side small{display:none}
.top-inner{padding:16px}
.org{max-width:150px}
.org strong{font-size:10px;letter-spacing:1.2px}
.org span{font-size:10px}
.cards.two{grid-template-columns:1fr}
.figure{padding:6px}
h1{letter-spacing:-1px}
.footer{display:block}
.footer span{display:block;margin:8px 0}
.lead{font-size:16px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
}

@media print{.top,.side,.skip{display:none}
.layout{display:block;max-width:none;padding:0}
body{background:white;font-size:11pt}
.figure,.card{break-inside:avoid}
.hero{margin-top:0}
a{color:inherit}
.footer{font-size:9pt}
}