:root{color-scheme:light;--ink:#20283d;--muted:#63708b;--accent:#4263eb;--line:#dce2ed;--paper:#f7f8fc}
*{box-sizing:border-box}html{scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:2px solid var(--accent);outline-offset:5px;border-radius:2px}img{display:block;max-width:100%}.skip-link{position:fixed;top:-100px;left:12px;z-index:10;background:white;padding:10px}.skip-link:focus{top:12px}
.reading-header{height:80px;max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-bottom:1px solid var(--line)}.reading-brand{flex-shrink:0}.reading-header nav{display:flex;align-items:center;gap:28px}.reading-header nav a{font-size:13px;font-weight:550;color:var(--ink);text-decoration:none}.reading-header nav a:hover{color:var(--accent)}.reading-header .reader-link{border:1px solid var(--line);border-radius:8px;padding:7px 13px;background:white}
.guide-index,.guide-main{max-width:1120px;margin:auto;padding:48px 40px 80px}.index-intro{padding:22px 0 46px;max-width:700px}.eyebrow{text-transform:uppercase;font-size:11px;letter-spacing:.12em;font-weight:650;color:var(--accent);margin:0 0 20px}.eyebrow span{color:var(--muted);font-weight:400;letter-spacing:.02em}.index-intro h1{font-size:clamp(42px,6vw,70px);line-height:1.07;letter-spacing:-.055em;font-weight:580;margin:0 0 24px}.lead{font-size:20px;line-height:1.7;color:var(--muted);max-width:740px;margin:0}.text-link{display:inline-block;margin-top:24px;text-decoration:none;font-size:14px;font-weight:600}
.guide-list{display:grid;grid-template-columns:1fr 1fr;column-gap:48px}.guide-entry{display:grid;grid-template-columns:28px 1fr 18px;gap:14px;border-top:1px solid var(--line);padding:28px 0 34px;text-decoration:none;color:var(--ink)}.guide-entry:hover h2{color:var(--accent)}.guide-number{font:12px/1.7 ui-monospace,monospace;color:var(--muted);padding-top:3px}.guide-entry .eyebrow{font-size:10px;display:block;margin-bottom:9px}.guide-entry h2{font-size:20px;line-height:1.4;font-weight:580;letter-spacing:-.02em;margin:0 0 12px}.guide-entry p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}.entry-arrow{color:var(--accent);font-size:20px}.example-note{padding:30px 0;border-top:1px solid var(--line);margin-top:24px}.example-note h2{font-size:23px;letter-spacing:-.02em;margin:0 0 8px}.example-note p{max-width:620px;color:var(--muted);margin:0 0 14px}.example-note a{font-size:14px;font-weight:550}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--muted);margin:0 0 40px}.breadcrumbs a{text-decoration:none}.article-heading{max-width:830px;margin-bottom:52px}.article-heading h1{font-size:clamp(32px,4.6vw,50px);font-weight:580;letter-spacing:-.042em;line-height:1.17;margin:0 0 24px}.article-date{font-size:12px;color:var(--muted);margin:22px 0 0}.article-layout{display:grid;grid-template-columns:minmax(0,710px) minmax(170px,1fr);gap:64px}.article-body{min-width:0}.article-body section{margin-bottom:42px}.article-body h2{font-size:23px;line-height:1.4;letter-spacing:-.025em;font-weight:600;margin:0 0 14px}.article-body p{margin:0 0 18px;color:#39445b}.article-body strong{font-weight:650;color:var(--ink)}code{font: .9em ui-monospace,SFMono-Regular,monospace;background:#e9edf8;padding:2px 4px;border-radius:3px;overflow-wrap:anywhere}.article-toc nav{position:sticky;top:32px;border-left:1px solid var(--line);padding-left:20px}.article-toc p{font-size:11px;text-transform:uppercase;letter-spacing:.08em;margin:0 0 16px;color:var(--muted)}.article-toc a{display:block;color:var(--muted);font-size:12px;line-height:1.6;margin:0 0 13px;text-decoration:none}.article-toc a:hover{color:var(--accent)}.article-cta{border-left:3px solid var(--accent);padding:2px 0 2px 22px;margin-top:48px}.article-cta p{font-size:14px;margin:6px 0 10px}.article-cta a{font-size:14px;font-weight:600}
.related-guides{border-top:1px solid var(--line);padding-top:32px;margin-top:64px}.related-guides h2{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:500;margin:0 0 20px}.related-guides>a{display:grid;grid-template-columns:130px 1fr 20px;gap:18px;align-items:baseline;padding:15px 0;color:var(--ink);text-decoration:none}.related-guides>a>span:first-child{font-size:12px;color:var(--muted)}.related-guides strong{font-size:16px;font-weight:550}.related-guides>a:hover strong{color:var(--accent)}.reading-footer{max-width:1040px;margin:0 auto;padding:28px 0 88px;border-top:1px solid var(--line)}.reading-footer p{font-size:15px;font-weight:550;margin:0 0 16px}.reading-footer nav{display:flex;flex-wrap:wrap;gap:12px 24px;margin-bottom:20px}.reading-footer a,.reading-footer small{font-size:12px}.reading-footer small{color:var(--muted)}
@media(max-width:800px){.reading-header{padding:0 24px}.guide-index,.guide-main{padding:34px 24px 56px}.guide-list{gap:0 28px}.article-layout{display:flex;flex-direction:column;gap:30px}.article-toc{order:-1}.article-toc nav{position:static;display:flex;flex-wrap:wrap;gap:10px 18px;border-left:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}.article-toc p{flex-basis:100%;margin:0}.article-toc a{margin:0}.article-heading{margin-bottom:32px}.reading-footer{margin:0 24px}.breadcrumbs{margin-bottom:28px}}
@media(max-width:540px){.reading-header{height:70px;padding:0 18px;gap:16px}.reading-brand img{width:85px;height:auto}.reading-header nav{gap:14px}.reading-header nav a{font-size:12px}.reading-header nav a[href='/authoring']{display:none}.reading-header .reader-link{padding:6px 9px}.guide-index,.guide-main{padding:30px 22px 48px}.index-intro{padding-top:12px}.guide-list{grid-template-columns:1fr}.guide-entry{padding:24px 0}.lead{font-size:17px}.article-body{font-size:16px;line-height:1.8}.article-body h2{font-size:21px}.article-toc nav{display:block}.article-toc p{margin-bottom:14px}.article-toc a{margin:8px 0}.related-guides>a{grid-template-columns:1fr 18px;gap:4px 14px}.related-guides>a>span:first-child{grid-column:1/-1}.reading-footer{margin:0 22px;padding-bottom:98px}.reading-footer small{display:block;max-width:260px}}
@media print{.reading-header,.article-toc,.related-guides,.reading-footer,.support-float,.article-cta{display:none!important}body{background:white;color:black;font-size:11pt}.guide-main{max-width:none;padding:0}.article-layout{display:block}.article-heading h1{font-size:28pt}}