/* Reference-led art direction; guide copy and questionnaire remain intact. */
@font-face{font-family:'Playfair Display';src:url('fonts/playfair-display.woff2') format('woff2');font-weight:400 600;font-style:normal;font-display:swap}
@font-face{font-family:Poppins;src:url('fonts/poppins-medium.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:Poppins;src:url('fonts/poppins-semibold.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
:root{--ink:#101528;--text:#363a49;--muted:#575d6b;--accent:#2c59b4;--deep:#204b9e;--line:#e2e0d9;--paper:#faf9f6;--sand:#f3eee4;--blue-wash:#e8f0fb;--serif:'Playfair Display',Georgia,serif;--sans:Arial,Helvetica,sans-serif;--page-gutter:36px}
html{scroll-padding-top:92px}
body{line-height:1.5}
h1,h2,h3,h4{font-weight:500;letter-spacing:-.045em;line-height:1.08}
.wrap{max-width:1320px;padding-inline:var(--page-gutter)}
.site-header{background:rgb(250 249 246 / .98)}
.topbar{height:72px}
.brand,.footer-inner .brand{font-family:var(--serif);font-weight:500;font-size:36px;letter-spacing:-1.9px;gap:0;color:var(--ink);white-space:nowrap}
.site-nav{gap:36px;font-size:15px}
.site-nav>a{color:var(--ink)}
.button{font-family:Poppins,system-ui,sans-serif;font-weight:600;min-height:48px;padding:13px 21px;font-size:15px;gap:12px}
.site-nav .button{min-height:42px;padding:12px 20px;font-size:14px}
.site-nav .button svg{display:none}
.hero{position:relative;display:block;left:50%;width:100vw;margin-left:-50vw;padding:0;min-height:clamp(476px,46vw,650px);isolation:isolate}
.hero-art{position:absolute;inset:0 auto 0 0;width:58%;height:100%;border:0;border-radius:0;background:transparent;overflow:hidden;z-index:-1}
.hero-art img{width:100%;height:100%;aspect-ratio:auto;object-fit:cover;object-position:right center}
.hero-copy{margin-left:55.25%;padding:50px max(var(--page-gutter),calc((100vw - 1248px)/2)) 0 0;min-height:inherit;display:flex;flex-direction:column}
.hero h1{font-size:clamp(55px,6.2vw,84px);font-weight:500;line-height:1.02;letter-spacing:-.052em;margin:0 0 24px;text-wrap:initial}
.hero h1 span{display:block;white-space:nowrap}
.hero-summary{font-size:clamp(21px,2.15vw,25px);line-height:1.3;max-width:none;margin-bottom:22px}
.meta{font-size:16px;line-height:1.45;gap:4px 10px;margin-bottom:24px}
.meta span+span:before{margin-right:10px}
.article-tools{border-top:1px solid #d9d8d1;border-bottom:0;margin-top:auto;min-height:52px;padding:10px 0;justify-content:flex-end;gap:22px;flex-wrap:wrap;font-size:14px}
.article-tools>.tool-group>span:first-child{display:none}
.tool-group{gap:0}
.tool-button{font-family:Poppins,system-ui,sans-serif;font-weight:500;font-size:14px;padding:6px 0;min-height:32px;gap:10px;color:var(--text)}
.article-tools>[data-print]{border-left:1px solid #d9d8d1;padding-left:22px;border-radius:0}
.live-status{font-size:13px;margin-left:8px}
.reading-layout{grid-template-columns:minmax(230px,25.5%) minmax(0,1fr);gap:48px;justify-content:initial;padding-top:45px}
.sidebar{position:sticky;top:99px;border-right:1px solid var(--line);padding-right:17px;max-height:none;overflow:visible;overscroll-behavior:auto}
.toc{padding-bottom:24px}
.toc>summary{display:none}
.toc nav{margin-top:0;max-height:min(550px,calc(100svh - 450px));min-height:155px;scrollbar-width:none;overscroll-behavior:contain}
.toc nav::-webkit-scrollbar{display:none}
.toc ol{display:block}
.toc a{padding:10px 14px 10px 19px;margin:0 0 7px;font-size:16px;line-height:1.45;color:var(--text);font-weight:400;position:relative;border-left:2px solid transparent}
.toc a:before{display:none}
.toc a[aria-current=location]{color:var(--accent);font-weight:400;border-left-color:var(--accent)}
.toc a:hover{font-weight:400;color:var(--accent)}
.side-cta{position:relative;isolation:isolate;overflow:hidden;padding:27px 22px 32px;margin-top:29px;border-radius:9px;background:var(--blue-wash)}
.side-cta:after{content:'';position:absolute;inset:auto -30px -78px -25px;height:170px;z-index:-1;background:url('sibo-art-v4-small.webp') center 68%/cover no-repeat;opacity:.18;transform:rotate(-9deg)}
.side-cta h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.065em;margin-bottom:16px;white-space:nowrap}
.side-cta p{font-size:17px;line-height:1.45;margin-bottom:20px}
.side-cta small{font-size:14px;line-height:1.4}
.side-cta .button{font-size:15px;white-space:nowrap;font-weight:600;gap:10px}
.article-body{max-width:none;font-size:20px;line-height:1.5}
.article-body p{margin-bottom:1em}
.article-intro h2{font-size:clamp(42px,4.6vw,55px);max-width:760px;line-height:1.02;letter-spacing:-.047em;margin-bottom:24px}
.takeaway{padding:24px 29px;margin:25px 0;border-radius:7px}
.takeaway h3{font-size:30px;margin:0 0 20px;line-height:1.1;letter-spacing:-.04em}
.takeaway h3 svg{display:none}
.takeaway ul{list-style:none;padding:0;counter-reset:takeaway;font-size:18px;line-height:1.45}
.takeaway li{position:relative;padding-left:59px;min-height:39px;counter-increment:takeaway}
.takeaway li+li{margin-top:17px}
.takeaway li:before{content:counter(takeaway);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:white;background:var(--accent);font:400 18px/1 var(--sans)}
.takeaway strong{font-weight:500}
.chapter{border-top:0;padding-top:0;margin-top:40px}
.chapter h2{font-size:clamp(39px,4.1vw,49px);line-height:1.05;margin-bottom:18px}
.chapter h3{font-size:31px;margin:30px 0 15px}
.editorial-note{line-height:1.5;font-size:15px}
.definition,.study p,.faq p,.flow p{line-height:1.55}
.definition h3{margin-top:0}
.study h3{font-size:30px;margin-top:0}
.callout{line-height:1.55}
.references li{line-height:1.6}
.final-cta h2{font-size:43px}
@media(min-width:1600px){.hero-copy{margin-left:calc(50% + 75px)}.hero-art{width:calc(50% + 110px)}}
@media(min-width:901px) and (max-width:1100px){.side-cta .button svg{display:none}}
@media(max-width:1100px){.topbar{height:60px}.brand{font-size:32px}.site-nav{font-size:14px}.site-nav .button{font-size:13px;min-height:38px;padding:10px 17px}.hero-copy{padding-top:50px}.hero h1{font-size:6.2vw}.sidebar{top:85px}.toc a{font-size:15px;padding-left:17px;margin-bottom:6px}.side-cta{padding:25px 18px 28px}.side-cta p{font-size:16px}.side-cta .button{font-size:14px;gap:7px}.reading-layout{gap:46px}.hero-summary{font-size:22px}}
@media(max-width:900px){:root{--page-gutter:28px}.hero h1{font-size:6.1vw}.hero-copy{padding-top:48px;margin-left:53.5%}.hero-art{width:57%}.hero-summary{font-size:20px}.hero{min-height:450px}.meta{font-size:14px}.reading-layout{grid-template-columns:1fr;gap:30px;padding-top:32px}.sidebar{position:static;border-right:0;padding-right:0}.toc>summary{display:flex;font-size:27px}.toc nav{margin-top:15px;max-height:none;min-height:0}.toc ol{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.toc a{font-size:16px;padding-left:13px;margin-bottom:3px}.side-cta{display:none}.article-intro h2{font-size:45px}.site-nav{gap:25px}}
@media(max-width:760px){:root{--page-gutter:22px}html{scroll-padding-top:85px}.topbar{height:64px}.brand{font-size:29px;letter-spacing:-1.6px}.site-nav .button{padding:11px 15px;font-size:13px;min-height:40px}.hero{min-height:0}.hero-art{position:relative;width:100%;height:clamp(260px,70vw,425px)}.hero-art img{object-position:center 47%;object-fit:cover}.hero-copy{margin-left:0;padding:29px var(--page-gutter) 0;min-height:0}.hero h1{font-size:clamp(41px,10.65vw,64px);line-height:1.03;letter-spacing:-.045em;margin-bottom:20px}.hero h1 span{white-space:normal}.hero-summary{font-size:20px;line-height:1.4;margin-bottom:20px}.meta{font-size:14px;margin-bottom:24px}.article-tools{min-height:51px;gap:18px;padding:9px 0}.article-tools>[data-print]{padding-left:18px}.tool-button{font-size:14px}.reading-layout{padding-top:30px;gap:30px}.article-body{font-size:19px;line-height:1.55}.article-intro h2{font-size:39px;line-height:1.05;margin-bottom:22px}.takeaway{padding:23px 20px}.takeaway h3{font-size:29px;line-height:1.1}.takeaway ul{font-size:18px;line-height:1.5}.takeaway li{padding-left:45px}.takeaway li:before{width:31px;height:31px;font-size:16px}.takeaway li+li{margin-top:17px}.chapter h2{font-size:37px;margin-bottom:20px}.chapter h3{font-size:29px}.definition h3,.study h3{font-size:28px}.mobile-cta{background:rgb(250 249 246 / .98)}.mobile-cta .button{font-weight:600}.final-cta h2{font-size:35px}}
@media(max-width:370px){:root{--page-gutter:18px}.brand{font-size:27px}.site-nav .button{font-size:12px;padding:10px 12px}.hero h1{font-size:37px}.hero-art{height:245px}.toc ol{grid-template-columns:1fr}.article-intro h2{font-size:36px}.chapter h2{font-size:34px}}
@media print{.hero{width:auto;left:auto;margin:0;display:grid;grid-template-columns:1fr 1fr;min-height:0;gap:25px}.hero-art{position:relative;inset:auto;width:100%;height:230px;z-index:0}.hero-copy{margin:0;padding:0;min-height:0;display:block}.hero h1{font-size:27pt}.hero h1 span{white-space:normal}.hero-summary{font-size:12pt}.reading-layout{display:block;padding-top:25px}.article-body{font-size:11pt;line-height:1.5}.article-intro h2,.chapter h2{font-size:24pt}.chapter h3{font-size:18pt}.takeaway h3{font-size:18pt}.takeaway ul{font-size:11pt}.takeaway li:before{width:24px;height:24px;font-size:11pt}.takeaway li{padding-left:37px}.brand{font-size:24pt}}

.byline{font-size:15px;color:var(--muted);line-height:1.6}.byline a{color:var(--accent);text-underline-offset:3px}.editorial-policy{margin-top:52px;padding-top:30px;border-top:1px solid var(--line);font-size:17px;line-height:1.6}.editorial-policy h2{font-size:36px;margin:0 0 20px}.editorial-policy h3{font-size:27px;margin:25px 0 12px}.editorial-policy p{max-width:75ch}.footer-links{flex-wrap:wrap}@media(max-width:600px){.editorial-policy h2{font-size:31px}.editorial-policy h3{font-size:25px}}