:root{color-scheme:light;--ink:#18304b;--muted:#5c6c7b;--blue:#245be3;--paper:#faf9f5;--line:#dce2e5;--soft:#e8eefb;--green:#dcece4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:26px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:inherit;text-underline-offset:4px}button,summary{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ee9e39;outline-offset:5px}button{cursor:pointer}[hidden]{display:none!important}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.12;letter-spacing:-.035em}h1{font-size:clamp(2.25rem,4.7vw,4.5rem);font-weight:750}h2{font-size:clamp(1.6rem,3vw,2.5rem)}h3{font-size:1.65rem}.wrap,.site-header,footer{width:min(1160px,calc(100% - 64px));margin-inline:auto}.narrow{width:min(760px,calc(100% - 48px));margin-inline:auto}.site-header{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:25px 0;border-bottom:1px solid var(--line)}.brand{display:flex;gap:11px;align-items:center;text-decoration:none;line-height:1;font-size:22px;font-weight:780;letter-spacing:-.7px}.brand img{flex:none}.brand small{display:block;font-size:11px;letter-spacing:1.2px;text-transform:uppercase;margin-top:7px;font-weight:600;color:var(--muted)}.site-header nav{display:flex;align-items:center;gap:32px}.header-tool{font-size:14px;font-weight:680;text-decoration:none;display:flex;gap:12px;align-items:center}.header-tool span{color:var(--blue);font-size:22px}.languages{position:relative;font-size:14px}.languages summary{cursor:pointer;list-style:none;padding:10px 0}.languages summary::-webkit-details-marker{display:none}.languages summary:after{content:'⌄';margin-left:10px}.language-menu{position:absolute;right:0;top:46px;min-width:180px;background:#fff;border:1px solid var(--line);border-radius:10px;z-index:10;box-shadow:0 14px 36px #142d4920;padding:8px}.language-menu a{display:block;padding:9px 12px;text-decoration:none;border-radius:5px}.language-menu a:hover,.language-menu a[aria-current]{background:var(--soft);color:var(--blue)}.skip{position:absolute;top:-100px;left:20px;background:#fff;padding:12px;z-index:20}.skip:focus{top:10px}.eyebrow{font-size:11px;line-height:1.5;letter-spacing:.12em;font-weight:750;text-transform:uppercase;color:var(--muted)}.hero{display:grid;grid-template-columns:1.35fr 1fr;align-items:center;gap:90px;padding-block:76px 88px}.hero .eyebrow{margin-bottom:22px}.hero h1{margin-bottom:23px;max-width:650px}.hero-copy{color:var(--muted);font-size:18px;line-height:1.75;max-width:560px;margin-bottom:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;background:var(--blue);color:white;border-radius:7px;padding:14px 20px;text-decoration:none;font-weight:650;font-size:15px;line-height:1.4;min-height:48px;max-width:100%;text-align:center}.button:hover{background:#1646bd}.button span{font-size:20px;flex:none}.hero-notes{display:flex;gap:18px;flex-wrap:wrap;margin-top:25px;color:var(--muted);font-size:12px}.hero-notes span:before{content:'✓';color:var(--blue);margin-right:6px}.featured{background:var(--soft);border-radius:20px;padding:30px;text-decoration:none;display:block;transform:rotate(1.5deg);position:relative}.featured>.eyebrow{color:#335aa1}.featured h2{font-size:25px;line-height:1.2;margin-bottom:20px;max-width:300px}.featured>span:last-child{font-size:14px;font-weight:700}.paper-art{background:#fff;box-shadow:0 8px 24px #263e6714;max-width:230px;margin:28px auto 34px;padding:22px;border:1px solid #dde4f0;border-radius:4px;transform:rotate(-5deg)}.paper-top{display:flex;justify-content:space-between;align-items:center;font:11px/1.2 ui-monospace,monospace;color:#758ba4;margin-bottom:20px}.paper-top i{font-size:26px;color:var(--blue);font-style:normal}.paper-line{height:5px;width:78%;background:#dce5f2;margin:9px 0;border-radius:3px}.paper-line.short{width:53%}.paper-symbol{font-weight:700;font-size:40px;letter-spacing:-2px;margin:18px 0 10px}.paper-symbol small{font:11px system-ui;letter-spacing:1px;color:var(--muted)}.paper-bottom{display:flex;gap:12px;align-items:center;border-top:1px solid var(--line);padding-top:13px}.paper-bottom span{background:#eef2f8;color:#70839b;width:28px;height:24px;text-align:center;line-height:24px}.paper-bottom strong{margin-left:auto;font-size:20px;color:var(--blue)}.guide-list{border-top:1px solid var(--line);padding-block:46px 68px}.section-title{display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:baseline;margin-bottom:34px}.section-title h2{margin-bottom:0;font-size:32px}.guide-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:48px}.guide-row{display:grid;grid-template-columns:42px 1fr;gap:22px;padding-block:30px;border-top:1px solid var(--line);text-decoration:none;min-width:0}.guide-index{font:15px/1.4 ui-monospace,monospace;color:#8290a0;margin-top:4px}.guide-row .eyebrow{font-size:10px}.guide-row h3{margin:10px 0 14px;transition:color .15s}.guide-row p{color:var(--muted);font-size:15px;max-width:440px;margin-bottom:15px}.guide-row:hover h3{color:var(--blue)}.read-meta{font-size:12px;color:var(--muted)}.read-meta span{color:var(--blue);margin-left:16px;font-size:18px}.app-callout{border-radius:14px;background:var(--green);padding:40px;display:flex;gap:40px;align-items:center;justify-content:space-between;margin-bottom:80px}.app-callout h2{font-size:27px;margin-bottom:12px}.app-callout p{max-width:630px;color:#4a6459;font-size:15px;margin-bottom:0}.app-callout .button{flex-shrink:0}.article-header{padding-block:34px 40px;border-bottom:1px solid var(--line)}.back{font-size:13px;display:inline-block;color:var(--muted);margin-bottom:36px;text-decoration:none}.article-header h1{max-width:900px;font-size:clamp(2.1rem,4.4vw,3.65rem);margin-bottom:24px}.article-header>.eyebrow{margin-bottom:18px}.lede{color:var(--muted);font-size:20px;max-width:770px;line-height:1.55;margin-bottom:27px}.article-meta{display:flex;gap:25px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.byline{font-size:12px;color:var(--muted);margin:12px 0 0}.article-layout{display:grid;grid-template-columns:240px minmax(0,720px);gap:66px;padding-block:48px 40px;align-items:start;justify-content:space-between}.toc{font-size:13px;position:sticky;top:28px}.toc ol{padding-left:19px;color:var(--muted)}.toc li{margin-bottom:14px;padding-left:5px}.toc a{text-decoration:none}.toc a:hover{color:var(--blue);text-decoration:underline}.toc summary{font-size:12px;font-weight:700;cursor:pointer}.article-layout article>section,.policy>section{margin-bottom:42px}.article-layout 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h2{font-size:18px!important}.references a{font-size:14px;color:var(--blue)}.references p{font-size:13px;color:var(--muted);line-height:1.6!important}.article-actions{display:flex;gap:12px;flex-wrap:wrap}.article-actions button{background:transparent;border:1px solid var(--line);border-radius:6px;padding:11px 16px;color:var(--ink);font-size:13px}.article-actions [role=status]{width:100%;font-size:12px;color:var(--muted)}.related{border-top:1px solid var(--line);padding-block:30px 60px}.related>.guide-row{max-width:700px;border:0}.policy{padding-block:36px 70px}.policy .contact-link{color:var(--blue);overflow-wrap:anywhere}footer{border-top:1px solid var(--line);padding-block:36px 20px;display:grid;grid-template-columns:1fr 1fr;gap:25px}.footer-brand strong{font-size:22px;letter-spacing:-1px}.footer-brand p{font-size:13px;color:var(--muted);max-width:380px;margin-top:12px}.footer-links{display:flex;flex-direction:column;align-items:flex-start;gap:10px;font-size:13px;justify-self:end}.footer-links button{border:0;background:transparent;padding:0;color:inherit;text-decoration:underline;text-align:left;font-size:13px}.copyright{grid-column:1/-1;font-size:11px;color:var(--muted);margin:8px 0 0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(max-width:900px){.hero{gap:42px;padding-block:52px}.featured{padding:24px}.paper-art{max-width:190px;margin-block:24px}.article-layout{grid-template-columns:180px minmax(0,1fr);gap:34px}.section-title{grid-template-columns:1fr;gap:14px}.guide-grid{column-gap:28px}.app-callout{align-items:flex-start;flex-direction:column;gap:22px}}
@media(max-width:600px){.wrap,.site-header,footer{width:calc(100% - 40px)}.site-header{padding-block:17px;gap:15px}.brand{font-size:20px}.brand img{width:32px}.brand small{font-size:10px}.site-header nav{gap:0;min-width:0}.header-tool{display:none}.languages{font-size:12px}.languages summary{white-space:nowrap}.hero{grid-template-columns:1fr;gap:36px;padding-block:38px 42px}.hero h1{font-size:40px;line-height:1.07}.hero-copy{font-size:16px;line-height:1.7}.hero .eyebrow{font-size:10px;margin-bottom:17px}.hero-notes{font-size:11px;gap:13px}.featured{transform:none;padding:22px;display:grid;grid-template-columns:1fr 105px;column-gap:16px;align-items:center}.featured>.eyebrow{grid-column:1;margin-bottom:9px}.featured h2{grid-column:1;font-size:21px;margin-bottom:13px}.featured>span:last-child{grid-column:1;font-size:12px}.paper-art{grid-column:2;grid-row:1/4;margin:0;padding:12px;width:105px;max-width:none;transform:rotate(-5deg)}.paper-top{margin-bottom:8px}.paper-top i{font-size:20px}.paper-symbol{font-size:28px;margin-block:12px}.paper-symbol small{font-size:8px}.paper-line{height:4px;margin-block:6px}.paper-bottom{gap:5px;padding-top:8px}.paper-bottom span{width:15px;height:18px;line-height:16px}.paper-bottom strong{font-size:13px}.guide-list{padding-block:30px 36px}.section-title{gap:12px;margin-bottom:22px}.section-title h2{font-size:27px}.guide-grid{grid-template-columns:1fr;gap:0}.guide-row{grid-template-columns:25px 1fr;gap:15px;padding-block:24px}.guide-row h3{font-size:23px}.guide-row p{font-size:14px}.guide-index{font-size:12px}.app-callout{padding:25px;margin-bottom:45px}.app-callout h2{font-size:25px}.article-header{padding-block:26px 28px}.article-header h1{font-size:35px;line-height:1.14;letter-spacing:-.03em}.back{margin-bottom:26px;font-size:12px}.article-header .lede{font-size:17px;line-height:1.65;margin-bottom:20px}.article-meta{font-size:11px;gap:12px}.byline{font-size:11px}.article-layout{display:block;padding-block:25px 20px}.toc{position:static;margin-bottom:28px;padding:16px 18px;border:1px solid var(--line);border-radius:7px}.article-layout article h2,.policy h2{font-size:25px}.article-layout article p,.policy p{font-size:16px;line-height:1.8}.article-layout article>section,.policy>section{margin-bottom:33px}.example{padding:19px 20px}.checklist,.tool-callout{padding:22px}.related{padding-bottom:35px}footer{grid-template-columns:1fr;gap:15px;padding-top:28px}.footer-links{justify-self:start;gap:13px}.narrow{width:calc(100% - 40px)}.policy{padding-block:28px 45px}.copyright{margin-top:12px}}
.ad-placement{margin:44px 0;padding:18px 0;border-block:1px solid var(--line);min-width:0;max-width:100%}.ad-label{display:block;text-align:center;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}.ad-placement:has(ins[data-ad-status="unfilled"]){display:none}.ad-placement ins[data-ad-status="unfilled"]{display:none!important}
@media(max-width:600px){.hero{grid-template-columns:minmax(0,1fr)}.hero>div{min-width:0}.hero h1{overflow-wrap:anywhere}.featured{grid-template-columns:minmax(0,1fr) 105px}.featured h2{overflow-wrap:anywhere}.ad-placement{margin:34px 0}}
@media print{.ad-placement{display:none!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{body{background:white;color:#111;font:11pt/1.5 system-ui}.site-header,footer,.skip,.toc,.article-actions,.related,.tool-callout,.back,ins,.google-auto-placed{display:none!important}.wrap,.narrow{width:100%}.article-header{padding:0 0 20px}.article-header h1{font-size:28pt}.article-layout{display:block;padding:20px 0}.article-layout article h2{font-size:18pt}h2,h3{break-after:avoid}.example,.checklist{break-inside:avoid;background:#f4f4f4!important}.article-layout article p{line-height:1.5}.references a{overflow-wrap:anywhere}}

.privacy-status{max-width:32rem;overflow-wrap:anywhere;color:var(--muted);font-size:13px;line-height:1.6}