@font-face{font-family:'Open Sans';src:url('/assets/open-sans-latin.woff2') format('woff2');font-style:normal;font-weight:300 800;font-display:swap}
:root{--blue:#0067b8;--blue-dark:#004f8f;--ink:#172b40;--muted:#54697c;--line:#d4e0e9;--soft:#f2f7fa;--radius:6px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;font:16px/1.75 'Open Sans','Segoe UI',sans-serif;color:var(--ink);background:#fff}a{color:var(--blue);text-underline-offset:4px}a:hover{color:var(--blue-dark)}:focus-visible{outline:3px solid var(--blue);outline-offset:4px}img,svg{max-width:100%}.skip-link{position:absolute;top:-100px;left:20px;background:#fff;padding:12px;z-index:20}.skip-link:focus{top:10px}
.guide-header{position:sticky;top:0;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);z-index:10}.guide-header .inner{max-width:1240px;min-height:68px;margin:auto;padding:12px 30px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{display:block;width:186px;height:auto}.guide-nav{display:flex;align-items:center;gap:24px;font-size:14px}.guide-nav a{text-decoration:none}.guide-nav .language{display:flex;gap:8px;color:var(--muted)}.language [aria-current]{font-weight:700;color:var(--blue)}.nav-cta{background:var(--blue);color:#fff!important;padding:9px 16px;border-radius:var(--radius)}
.wrap{width:calc(100% - 60px);max-width:1180px;margin:auto}.breadcrumbs{margin:26px 0 30px;padding:0;display:flex;flex-wrap:wrap;gap:8px;list-style:none;font-size:13px;color:var(--muted)}.breadcrumbs li+li:before{content:'/';margin-right:8px;color:#8293a3}.breadcrumbs a{text-decoration:none}.eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--blue);font-size:12px;font-weight:700;margin:0 0 16px}h1{font-size:clamp(32px,4vw,49px);line-height:1.2;letter-spacing:-.025em;margin:0 0 22px;font-weight:650;color:#102a43}h2{font-size:26px;line-height:1.35;letter-spacing:-.015em;margin:48px 0 18px}h3{font-size:19px;line-height:1.45;margin:26px 0 12px}p{margin:0 0 20px}.intro{font-size:19px;line-height:1.65;color:#425c73;max-width:770px}.hub-hero{background:linear-gradient(115deg,#fff 35%,#edf6fc);padding:35px 0 50px;border-bottom:1px solid var(--line)}.hub-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center}.hub-hero h1{max-width:630px}.method-figure{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 10px 35px rgba(0,67,110,.04)}.method-figure .caption{font-size:12px;color:var(--muted);margin:12px 0 0}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:48px 0 24px}.section-heading h2{margin:0}.count{font-size:13px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.guide-card{border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;overflow:hidden;background:#fff;transition:border-color .2s,box-shadow .2s}.guide-card:hover{border-color:#75b2dc;box-shadow:0 8px 24px rgba(0,60,105,.07)}.card-top{padding:20px 24px;background:var(--soft);font-size:12px;color:var(--blue);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.card-number{font-size:30px;color:#a6bfd2;font-weight:300}.card-body{padding:24px;display:flex;flex-direction:column;flex:1}.card-body h3{margin:0 0 14px;font-size:22px}.card-body h3 a{color:var(--ink);text-decoration:none}.card-body p{font-size:14px;line-height:1.75;color:var(--muted)}.read-link{font-size:14px;font-weight:600;margin-top:auto;text-decoration:none}.editorial{margin:48px 0 64px;background:var(--soft);padding:30px 34px;border-left:3px solid var(--blue);display:grid;grid-template-columns:1fr 2fr;gap:36px}.editorial h2{margin:0;font-size:22px}.editorial p{font-size:14px;margin:0}.editorial a{white-space:normal}
.article-heading{padding:0 0 34px;border-bottom:1px solid var(--line)}.article-heading h1{max-width:970px}.article-meta{font-size:12px;color:var(--muted);display:flex;gap:10px 18px;flex-wrap:wrap;margin:22px 0 0}.article-layout{display:grid;grid-template-columns:minmax(0,790px) minmax(200px,1fr);gap:70px;padding:12px 0 60px}.article-body{min-width:0}.article-body>section:first-child h2{margin-top:32px}.article-body ul{padding-left:24px;margin:0 0 24px}.article-body li{padding-left:5px;margin-bottom:10px}.toc{align-self:start;position:sticky;top:100px;padding:22px;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);margin-top:25px;font-size:13px}.toc h2{font-size:14px;margin:0 0 16px}.toc ol{padding:0;list-style:none;margin:0}.toc li{margin:0 0 12px}.toc a{color:var(--muted);text-decoration:none}.toc a:hover{color:var(--blue)}.toc .aside-note{font-size:12px;border-top:1px solid var(--line);padding-top:18px;margin:20px 0 0;color:var(--muted)}.callout{background:#edf6fc;border:1px solid #c5dfef;border-left:3px solid var(--blue);padding:22px 25px;border-radius:var(--radius);margin:26px 0}.callout strong{display:block;margin-bottom:8px;color:var(--blue-dark)}.callout p{margin:0;font-size:15px}.table-wrap{width:100%;overflow-x:auto;margin:25px 0 30px;border:1px solid var(--line);border-radius:var(--radius)}table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.65}th,td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);min-width:110px}th{background:var(--soft);font-weight:600}tr:last-child td{border-bottom:0}tbody tr:nth-child(even){background:#fbfdfe}.checklist{list-style:none!important;padding:0!important}.checklist li{position:relative;padding-left:34px;margin:12px 0}.checklist li:before{content:'✓';position:absolute;left:0;color:var(--blue);font-weight:700}.faq-list details{border-bottom:1px solid var(--line);padding:18px 0}.faq-list summary{font-weight:600;cursor:pointer;padding-right:12px}.faq-list details p{font-size:15px;margin:16px 0 0}.sources{font-size:13px;color:var(--muted)}.sources ul{padding-left:18px}.sources li{margin-bottom:10px}.sources a{overflow-wrap:anywhere}.article-cta{padding:26px 30px;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);margin-top:32px}.article-cta h2{margin:0 0 12px;font-size:23px}.article-cta p{font-size:15px}.buttons{display:flex;flex-wrap:wrap;gap:12px}.button{display:inline-block;padding:11px 17px;background:var(--blue);color:#fff!important;text-decoration:none;border-radius:var(--radius);font-size:14px;font-weight:600}.button.secondary{background:#fff;color:var(--blue)!important;border:1px solid #9bc5e1}.related{border-top:1px solid var(--line);padding:35px 0 55px;background:#fbfdfe}.related h2{margin:0 0 24px}.related .cards{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:12px}.guide-footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.guide-footer nav{display:flex;gap:18px;flex-wrap:wrap}.guide-footer a{text-decoration:none}.home-guides-link{font-size:13px;font-weight:600;color:#0067b8!important}
@media(max-width:950px){.hub-grid{gap:32px;grid-template-columns:1.1fr 1fr}.article-layout{grid-template-columns:minmax(0,1fr);gap:0}.toc{position:static;grid-row:1;margin:20px 0 0;padding:20px}.toc ol{display:grid;grid-template-columns:1fr 1fr;gap:4px 24px}.toc .aside-note{display:none}.cards{gap:14px}.card-body{padding:20px}.editorial{grid-template-columns:1fr;gap:15px}}
@media(max-width:650px){body{font-size:15px}.wrap{width:calc(100% - 36px)}.guide-header .inner{padding:10px 18px;min-height:64px;gap:12px;flex-wrap:wrap}.logo{width:150px}.guide-nav{gap:16px;font-size:12px}.nav-cta{display:none}.hub-hero{padding:20px 0 34px}.hub-grid{grid-template-columns:1fr;gap:24px}.method-figure{padding:18px}.intro{font-size:17px}.breadcrumbs{font-size:12px;margin:20px 0 25px}h1{font-size:32px}h2{font-size:24px;margin-top:36px}.section-heading{margin:34px 0 20px}.cards,.related .cards{grid-template-columns:1fr;gap:18px}.card-top{padding:14px 22px}.card-body{padding:22px}.editorial{padding:24px;margin:32px 0 40px}.toc ol{grid-template-columns:1fr}.article-heading{padding-bottom:24px}.article-layout{padding-bottom:35px}.callout{padding:18px}.article-cta{padding:22px}.buttons{flex-direction:column}.buttons a{text-align:center}.guide-footer .wrap{display:block}.guide-footer nav{margin-top:16px;gap:12px 18px}.related{padding-bottom:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-card{transition:none}}