@font-face{font-family:"Barlow Condensed";src:url(/assets/fonts/BarlowCondensed-Bold.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url(/assets/fonts/BarlowCondensed-SemiBold.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}
:root{--paper:#F4F5F7;--white:#FFFFFF;--ink:#15191E;--ink-2:#3B424B;--rule:#D5D8DC;--rule-2:#E7E9EC;--accent:#0E4C92;--accent-ink:#FFFFFF;
--display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;--body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--measure:42rem}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:1.0625rem;line-height:1.6}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2px}a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:60rem;margin:0 auto;padding:0 1.25rem}
.prose{max-width:var(--measure)}
h1,h2,h3{font-family:var(--display);line-height:1.05;margin:0;color:var(--ink);letter-spacing:-.005em}
h1{font-size:clamp(2.2rem,5.5vw,3.5rem);font-weight:700}
h2{font-size:clamp(1.55rem,3.2vw,2.05rem);font-weight:700;margin-top:2.4rem;margin-bottom:.6rem}
h3{font-size:1.3rem;font-weight:600;margin-top:1.6rem;margin-bottom:.4rem}
p,ul,ol{margin:0 0 1rem}ul,ol{padding-left:1.25rem}li{margin-bottom:.35rem}
/* header */
.top{background:var(--white);border-bottom:1px solid var(--rule)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:3.6rem;flex-wrap:wrap}
.brand{font-family:var(--display);font-weight:700;font-size:1.55rem;color:var(--ink);text-decoration:none;letter-spacing:.01em;display:flex;align-items:center;gap:.5rem}
.brand img{width:1.5rem;height:1.5rem;border-radius:.3rem}
.nav{display:flex;gap:.2rem;flex-wrap:wrap}
.nav a{color:var(--ink-2);text-decoration:none;padding:.5rem .6rem;font-size:.95rem;border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink)}.nav a[aria-current=page]{color:var(--ink);border-bottom-color:var(--accent)}
/* page head */
.head{padding:2.2rem 0 .5rem}
.crumbs{font-size:.9rem;color:var(--ink-2);margin:0 0 1rem}.crumbs a{color:var(--ink-2)}.crumbs span{margin:0 .4rem}
.rail{border-left:.55rem solid var(--accent);padding-left:1rem}
.rail h1{max-width:52rem}
.meta{font-size:.9rem;color:var(--ink-2);margin:.9rem 0 0}
.meta a{color:var(--ink-2)}
/* answer card */
.answer{background:var(--white);border:1px solid var(--rule);border-top:.35rem solid var(--accent);padding:1.35rem 1.4rem 1.2rem;margin:1.6rem 0 1.2rem;max-width:52rem}
.answer p{font-size:1.28rem;line-height:1.45;margin:0;font-weight:500;color:var(--ink)}
.numbers{display:flex;flex-wrap:wrap;gap:0;margin:1.1rem 0 0;padding:0;list-style:none;border-top:1px solid var(--rule-2)}
.numbers li{flex:1 1 9rem;padding:.9rem 1rem .2rem 0;border-right:1px solid var(--rule-2);margin:0 1rem 0 0}
.numbers li:last-child{border-right:0}
.numbers b{display:block;font-family:var(--display);font-size:1.9rem;line-height:1;font-weight:700;color:var(--accent)}
.numbers small{display:block;font-size:.85rem;color:var(--ink-2);margin-top:.25rem;line-height:1.3}
.buyline{margin:0 0 1.5rem;max-width:52rem;font-size:1rem;color:var(--ink-2)}
/* tables */
.tbl{overflow-x:auto;margin:1.2rem 0 1.4rem;max-width:56rem}
table{border-collapse:collapse;width:100%;font-size:.95rem;background:var(--white);border:1px solid var(--rule)}
caption{text-align:left;font-family:var(--display);font-weight:600;font-size:1.15rem;padding:.6rem .8rem;color:var(--ink)}
th,td{padding:.6rem .8rem;border-top:1px solid var(--rule-2);text-align:left;vertical-align:top}
th{background:var(--paper);font-weight:600}
tbody tr.ours td{background:#F7FAFF;font-weight:500}
.tnote{font-size:.85rem;color:var(--ink-2);margin:.4rem 0 0}
/* checklist */
.check{background:var(--white);border:1px solid var(--rule);padding:1rem 1.2rem 1rem 1.2rem;max-width:var(--measure);margin:1rem 0 1.4rem}
.check ul{margin:0;padding-left:1.1rem}
/* worked example */
.example{display:grid;grid-template-columns:minmax(0,1fr) 11rem;gap:1.4rem;background:var(--white);border:1px solid var(--rule);border-left:.55rem solid var(--accent);padding:1.3rem 1.4rem;margin:1.6rem 0;max-width:56rem;align-items:start}
.example img{width:100%;max-width:11rem;justify-self:end}
.example h2{margin-top:0;font-size:1.6rem}
.example dl{display:grid;grid-template-columns:auto 1fr;gap:.25rem 1rem;margin:.8rem 0;font-size:.95rem}
.example dt{color:var(--ink-2)}.example dd{margin:0}
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;font-family:var(--display);font-weight:600;font-size:1.15rem;padding:.6rem 1.1rem;border-radius:.2rem;margin:.4rem .6rem .2rem 0}
.btn:hover{background:#2A313A}
.sub{font-size:.9rem;color:var(--ink-2)}
@media (max-width:640px){.example{grid-template-columns:1fr}.example img{max-width:9rem;justify-self:start}}
/* faq */
.faq h3{border-top:1px solid var(--rule);padding-top:.9rem;margin-top:1rem;font-size:1.25rem}
.faq p{margin:.4rem 0 .6rem;max-width:var(--measure)}
/* sources, related */
.sources{font-size:.92rem;color:var(--ink-2)}.sources ol{padding-left:1.2rem}
.related ul{list-style:none;padding:0;margin:0}.related li{border-top:1px solid var(--rule);padding:.6rem 0}
.related li:last-child{border-bottom:1px solid var(--rule)}
.related a{text-decoration:none;font-weight:500}.related a:hover{text-decoration:underline}
/* hub and home */
.hero{padding:3rem 0 2rem}
.hero h1{max-width:46rem}
.hero p.lead{font-size:1.25rem;max-width:40rem;color:var(--ink-2);margin:1rem 0 0}
.sections{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);margin:2rem 0}
.sections a{display:block;background:var(--white);padding:1.2rem 1.2rem 1.3rem;text-decoration:none;color:var(--ink);border-top:.4rem solid var(--sec)}
.sections a:hover{background:#FBFBFC}
.sections h2{margin:0 0 .4rem;font-size:1.7rem}
.sections p{margin:0;color:var(--ink-2);font-size:.95rem}
.list{list-style:none;padding:0;margin:1rem 0 2rem;max-width:56rem}
.list li{border-top:1px solid var(--rule);padding:.75rem 0}
.list li:last-child{border-bottom:1px solid var(--rule)}
.list a{text-decoration:none;font-weight:500;font-size:1.05rem}.list a:hover{text-decoration:underline}
.list small{display:block;color:var(--ink-2);font-size:.9rem;margin-top:.15rem}
.entity-grid{display:grid;grid-template-columns:minmax(0,1fr) 16rem;gap:2rem;align-items:start;max-width:56rem}
@media (max-width:700px){.entity-grid{grid-template-columns:1fr}}
.spec{width:100%}
.figure{margin:1.4rem 0;max-width:36rem}.figure img{border:1px solid var(--rule)}.figure figcaption{font-size:.85rem;color:var(--ink-2);margin-top:.4rem}
/* footer */
footer{border-top:1px solid var(--rule);margin-top:3.5rem;padding:1.8rem 0 2.4rem;font-size:.9rem;color:var(--ink-2)}
footer .wrap{display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between}
footer a{color:var(--ink-2)}
footer p{margin:0 0 .4rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}