.site-header a[aria-current]{color:var(--sky);text-decoration:underline;text-underline-offset:7px}
.editorial-library .featured-guide+.featured-guide{margin-top:28px}
.featured-guide .guide-topic-panel{display:flex;flex:1;min-height:360px;flex-direction:column;justify-content:center;padding:48px;color:var(--navy);background:linear-gradient(150deg,#dceefb,var(--pale))}
.guide-topic-panel p:first-child{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--blue)}
.guide-topic-panel p+p{font-size:clamp(32px,3.5vw,48px);font-weight:800;line-height:1.2;letter-spacing:-.035em;max-width:360px}
@media(max-width:640px){.featured-guide .guide-topic-panel{min-height:240px;padding:30px}}
.editorial-breadcrumb{margin-bottom:35px}.editorial-breadcrumb ol{list-style:none;display:flex;gap:12px;flex-wrap:wrap;margin:0;padding:0}.editorial-breadcrumb li{display:flex;align-items:center;font-size:12px}.editorial-breadcrumb li+li:before{content:'/';margin-right:12px}.editorial-breadcrumb a{display:inline-flex;align-items:center;min-height:44px;font-size:12px}.editorial-breadcrumb a:hover{text-decoration:underline}
.editorial-masthead{padding:24px 0 64px;background:var(--navy);color:white}.editorial-masthead :focus-visible{outline-color:var(--sky)}.editorial-masthead .editorial-breadcrumb{color:#d5e5f3}.hub-intro{display:grid;grid-template-columns:1.4fr 1fr;gap:60px;align-items:end}.hub-intro h1{font-size:clamp(40px,4.8vw,68px)}.hub-intro h1 span{color:var(--sky)}.hub-intro>p{color:#e0ecf6;font-size:18px;max-width:370px;padding-bottom:6px}.library-heading{display:flex;align-items:end;justify-content:space-between;gap:35px;margin-bottom:36px}.library-heading h2{font-size:clamp(29px,3vw,42px)}.library-heading>p{color:var(--muted);font-size:14px}.featured-guide{display:grid;grid-template-columns:1.1fr 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden}.featured-guide>figure{position:relative;background:var(--pale);display:flex;flex-direction:column}.featured-guide figure img{width:100%;height:100%;min-height:360px;object-fit:cover}.featured-guide figcaption{padding:10px 18px;font-size:11px;color:var(--muted);background:var(--pale)}.featured-copy{padding:42px;display:flex;align-items:start;flex-direction:column}.editorial-tag{font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--blue);margin:0 0 16px}.featured-copy h3{font-size:clamp(26px,2.6vw,36px);line-height:1.2}.featured-copy h3 a:hover{text-decoration:underline;text-underline-offset:5px}.featured-copy>p:not(.editorial-tag){font-size:15px;color:var(--muted);margin-top:22px}.guide-topics{display:block;margin:24px 0;color:var(--muted);font-size:13px}.guide-topics li{padding-left:18px;position:relative;margin-top:8px}.guide-topics li:before{content:'—';position:absolute;left:0;color:var(--blue)}.featured-copy .button{margin-top:auto}.editorial-next{background:var(--pale)}.editorial-next-inner{display:flex;align-items:center;justify-content:space-between;gap:50px}.editorial-next h2{font-size:34px}.editorial-next p:not(.eyebrow){max-width:540px;color:var(--muted);margin-top:20px}.editorial-next .button{flex-shrink:0}.section-link{margin-bottom:22px}
.article-heading{background:var(--pale);padding:24px 0 48px}.article-heading h1{font-size:clamp(36px,4.2vw,60px);max-width:990px;line-height:1.12}.article-deck{max-width:760px;font-size:20px;line-height:1.65;color:var(--muted);margin-top:26px}.article-date{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:24px}.article-opening{margin-top:40px}.article-opening img{width:100%;max-height:530px;object-fit:cover;border-radius:55px 12px 12px 12px}.article-heading figcaption,.article-prose figcaption{font-size:12px;line-height:1.65;color:var(--muted);padding-top:12px;max-width:740px}.reading-layout{display:grid;grid-template-columns:245px minmax(0,760px);gap:70px;align-items:start;padding-block:64px 96px}.article-sidebar{position:sticky;top:28px}.article-toc{background:var(--pale);border:1px solid var(--line);border-radius:10px;padding:24px}.article-toc>p{font-weight:700;font-size:11px;letter-spacing:.12em;color:var(--blue);margin-bottom:14px}.article-toc ol{display:block;list-style:none;margin:0;padding:0}.article-toc li+li{border-top:1px solid var(--line)}.article-toc a{font-size:13px;font-weight:400;line-height:1.45;min-height:44px;display:flex;padding:11px 0;align-items:center;color:var(--ink)}.article-toc a:hover{color:var(--blue);text-decoration:underline}.article-prose{min-width:0;font-size:18px;line-height:1.85}.article-prose section{margin-top:56px;scroll-margin-top:32px}.article-prose h2{font-size:32px;line-height:1.23;letter-spacing:-.025em;margin-bottom:24px}.article-prose h3{font-size:23px;line-height:1.35;margin:26px 0 15px}.article-prose p+p{margin-top:20px}.article-prose a:not(.button):not(.text-link){color:var(--blue);text-decoration:underline;text-underline-offset:4px}.article-prose ul{list-style:disc;padding-left:23px;margin:24px 0}.article-prose li+li{margin-top:14px}.article-prose figure{margin:32px 0}.article-prose figure img{width:100%;height:auto;border-radius:10px}.article-prose .editorial-tag{font-size:11px;line-height:1.6;margin-top:0;margin-bottom:14px}.answer-box{border-left:3px solid var(--blue);padding:28px 30px;background:var(--pale);border-radius:0 10px 10px 0}.answer-box p{font-size:17px}.answer-box p:last-child{font-size:15px;color:var(--muted)}.worked-example{background:var(--pale);border:1px solid var(--line);border-radius:10px;padding:28px 32px;margin:28px 0}.worked-example h3{margin-top:0}.worked-example p{font-size:16px}.worked-example .calculation{font-size:22px;line-height:1.65;color:var(--navy);padding-block:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-block:22px}.formula{padding:24px;background:var(--navy);color:white;border-radius:8px;font-size:20px;margin-top:26px}.article-prose .source-note{font-size:12px;line-height:1.7;color:var(--muted);margin-top:14px}.editorial-table{overflow:auto;border:1px solid var(--line);border-radius:10px;margin:28px 0}.editorial-table table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.65;text-align:left}.editorial-table caption{padding:18px;font-size:13px;font-weight:700;text-align:left;background:var(--pale);color:var(--navy)}.editorial-table th,.editorial-table td{padding:16px;border-top:1px solid var(--line);vertical-align:top;min-width:130px}.editorial-table thead{background:var(--navy);color:white}.editorial-table tbody th{font-weight:700;color:var(--navy)}.message-example{border-left:3px solid var(--blue);padding:0 0 0 24px;margin:32px 0}.message-example p{font-size:16px}.message-example p:last-child{font-size:12px;color:var(--muted)}.article-action{padding:32px;border:1px solid var(--line);border-radius:12px;background:var(--pale);margin:32px 0}.article-action h3{margin-top:0}.article-action p{font-size:16px}.article-action .button{margin-top:24px;text-decoration:none}.article-action .action-note{font-size:12px;color:var(--muted);margin-top:16px}.article-sources{border-top:1px solid var(--line);padding-top:32px}.article-sources h2{font-size:24px}.article-sources p{font-size:14px;color:var(--muted)}.article-back{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:28px;margin-top:40px}
@media(max-width:1120px){.reading-layout{grid-template-columns:210px minmax(0,1fr);gap:40px}.featured-copy{padding:30px}.editorial-next-inner{align-items:start;flex-direction:column;gap:24px}}
@media(max-width:900px){.hub-intro{grid-template-columns:1fr;gap:25px}.hub-intro>p{max-width:560px}.featured-guide{grid-template-columns:1fr}.featured-guide figure img{height:auto;min-height:0;max-height:420px;object-fit:cover}.featured-copy{padding:34px}.featured-copy h3{max-width:650px}.reading-layout{grid-template-columns:1fr;gap:36px;max-width:760px}.article-sidebar{position:static}.article-toc ol{display:grid;grid-template-columns:1fr 1fr;column-gap:25px}.article-toc li:nth-child(2){border-top:0}.article-breadcrumb{width:auto}.article-opening img{max-height:440px}}
@media(max-width:640px){.editorial-masthead{padding-bottom:40px}.hub-intro h1{font-size:40px}.hub-intro>p{font-size:16px}.library-heading{display:block}.library-heading>p{margin-top:20px}.featured-copy{padding:26px 22px}.featured-copy h3{font-size:27px}.editorial-next h2{font-size:29px}.editorial-next .button{width:100%}.article-heading h1{font-size:36px}.article-deck{font-size:18px}.article-opening{margin-top:28px}.article-opening img{border-top-left-radius:32px;aspect-ratio:1.25;object-fit:cover}.article-heading figcaption,.article-prose figcaption{font-size:11px}.reading-layout{padding-block:36px 56px;gap:32px}.article-toc{padding:20px}.article-toc ol{grid-template-columns:1fr}.article-toc li:nth-child(2){border-top:1px solid var(--line)}.article-prose{font-size:17px;line-height:1.85}.article-prose h2{font-size:27px}.article-prose section{margin-top:42px}.answer-box,.worked-example,.article-action{padding:23px 20px}.worked-example .calculation{font-size:20px}.editorial-table table{font-size:13px}.editorial-table th,.editorial-table td{min-width:0;padding:12px 9px;overflow-wrap:anywhere}.article-prose .button{width:100%}.article-back{flex-direction:column;gap:5px}.formula{font-size:17px;padding:20px}.article-date{gap:8px}}