:root{--green:#0b6b4f;--deep:#123a2d;--ink:#15201d;--muted:#64716d;--line:#dfe5e2;--soft:#f4f6f5;--orange:#e77b18;--paper:#fff;--max:1180px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,Arial,Helvetica,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
.shell{width:min(var(--max),calc(100% - 52px));margin-inline:auto}
.skip-link{position:absolute;left:16px;top:-100px;z-index:50;background:#fff;padding:8px 14px;color:var(--green)}
.skip-link:focus{top:10px}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.site-header{height:76px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);white-space:nowrap;line-height:1.1}
.brand strong{font-weight:850;letter-spacing:.01em;font-size:19px}
.brand small{font-size:10px;font-weight:750;letter-spacing:.13em;color:var(--green);padding-left:11px;border-left:1px solid var(--line)}
.brand-mark{height:29px;width:29px;position:relative;display:inline-block;flex:none}
.brand-mark span{position:absolute;display:block;background:var(--green);border-radius:100% 0 100% 0;transform-origin:bottom right}
.brand-mark span:nth-child(1){width:14px;height:22px;left:7px;top:1px;transform:rotate(-24deg)}
.brand-mark span:nth-child(2){width:13px;height:19px;left:13px;top:8px;transform:rotate(42deg);background:#6caa84}
.brand-mark span:nth-child(3){width:2px;height:21px;left:14px;top:7px;background:var(--deep);border-radius:0;transform:rotate(-10deg)}
.site-nav{display:flex;align-items:center;gap:29px;font-size:13px;font-weight:700}
.site-nav a:not(.nav-cta):hover{color:var(--green)}
.nav-cta,.primary-link,.outline-link{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:43px;border:1px solid var(--green);padding:10px 16px;font-weight:750;font-size:13px;transition:.2s ease}
.nav-cta,.primary-link{background:var(--green);color:#fff}
.nav-cta:hover,.primary-link:hover{background:var(--deep)}
.nav-cta span,.primary-link span{font-size:19px;line-height:1}
.menu-button{display:none}
.eyebrow{font-size:11px;font-weight:850;letter-spacing:.16em;text-transform:uppercase;color:var(--green);margin:0 0 20px}
.index-hero{background:linear-gradient(107deg,#f7f9f7 0%,#edf4ee 58%,#dcebe0 100%);min-height:560px;overflow:hidden;border-bottom:1px solid #d9e7dc}
.hero-grid{display:grid;grid-template-columns:1.07fr .93fr;align-items:center;min-height:560px;position:relative}
.hero-copy{position:relative;z-index:2;padding:82px 0 90px}
.hero-copy h1{font-size:clamp(45px,5.5vw,72px);line-height:1.12;letter-spacing:-.05em;max-width:710px;margin:0 0 24px;font-weight:830}
.hero-deck{font-size:17px;line-height:1.8;max-width:640px;color:#4f625a;margin:0 0 32px}
.hero-visual{height:100%;min-height:500px;display:flex;align-items:center;justify-content:center;position:relative}
.poly-art{width:min(100%,580px);height:auto;filter:drop-shadow(0 27px 44px rgba(26,82,55,.09));transform:rotate(-7deg)}
.visual-note{position:absolute;bottom:48px;right:0;color:#488069;font-size:10px;font-weight:800;letter-spacing:.2em}
.evidence-strip{background:#fff;border-bottom:1px solid var(--line)}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.evidence-grid>div{padding:24px 26px;display:flex;gap:18px;align-items:center;border-right:1px solid var(--line);font-size:13px;font-weight:670}
.evidence-grid>div:first-child{padding-left:0}
.evidence-grid>div:last-child{border-right:0}
.evidence-grid strong{font-size:12px;color:var(--orange);letter-spacing:.08em}
.articles-section{padding-block:110px 126px}
.section-heading{display:flex;justify-content:space-between;gap:32px;align-items:end;margin-bottom:40px}
.section-heading .eyebrow{margin-bottom:11px}
.section-heading h2,.about-grid h2{margin:0;font-size:clamp(30px,3.5vw,45px);line-height:1.18;letter-spacing:-.035em}
.section-heading>p{max-width:330px;margin:0;color:var(--muted);font-size:14px}
.story-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.story-card{border:1px solid var(--line);background:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease}
.story-card:hover{transform:translateY(-4px);box-shadow:0 18px 35px rgba(21,32,29,.09)}
.card-top{padding:18px 22px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);font-size:10px;font-weight:850;letter-spacing:.12em}
.card-number{color:var(--orange)}
.card-tag{color:var(--green);text-align:right}
.card-graphic{height:174px;background:linear-gradient(120deg,#e7f1e8,#c8e0d1);position:relative;overflow:hidden}
.story-card:nth-child(2) .card-graphic{background:linear-gradient(115deg,#ebf3eb,#d5e5db)}
.orbit{position:absolute;display:block;border:2px solid rgba(11,107,79,.35);border-radius:50%;transform:rotate(-18deg)}
.orbit-a{width:390px;height:160px;top:20px;left:9%}
.orbit-b{width:450px;height:200px;top:25px;left:12%;transform:rotate(18deg);border-color:rgba(231,123,24,.26)}
.orb{position:absolute;border-radius:50%;background:var(--green);box-shadow:0 0 0 10px rgba(255,255,255,.32)}
.orb-a{height:24px;width:24px;left:27%;top:61px}
.orb-b{height:17px;width:17px;left:59%;top:108px;background:#e77b18}
.orb-c{height:10px;width:10px;left:78%;top:50px}
.card-body{padding:31px 32px 35px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:clamp(25px,2.25vw,32px);line-height:1.25;letter-spacing:-.035em;margin:0 0 16px}
.card-body h3 a:hover{color:var(--green)}
.card-body p{font-size:15px;color:#53635d;margin:0 0 22px}
.card-body ul{padding:20px 0 0;margin:0 0 30px;list-style:none;border-top:1px solid var(--line);color:#60706a;font-size:13px;display:grid;gap:8px}
.card-body li:before{content:'↗';color:var(--orange);font-weight:800;margin-right:9px}
.text-link{color:var(--green);font-size:13px;font-weight:800;display:inline-flex;gap:12px;align-items:center;margin-top:auto}
.text-link span{font-size:18px}
.about-section{background:#143a2e;color:#fff;padding:80px 0 90px}
.about-grid{display:grid;grid-template-columns:.4fr 1fr;gap:60px}
.about-grid .eyebrow{color:#9bd0ae;margin-top:9px}
.about-grid h2{max-width:620px}
.about-grid p{font-size:16px;color:#c9d9cf;max-width:710px;margin:20px 0 28px}
.outline-link{background:transparent;border-color:#91bb9f;color:#fff}
.outline-link:hover{background:#fff;color:var(--deep)}
.site-footer{background:#101c18;color:#dce9df;padding:60px 0 22px}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:80px}
.footer-brand{font-size:20px;font-weight:850;color:#fff}
.footer-grid p{max-width:600px;color:#9bad9f;font-size:13px;margin:12px 0 0}
.footer-links{display:grid;grid-auto-flow:column;gap:23px;align-content:start;font-size:12px;font-weight:700}
.footer-links a:hover{color:#9bd0ae}
.footer-bottom{border-top:1px solid #284137;margin-top:55px;padding-top:20px;color:#81978a;display:flex;justify-content:space-between;gap:20px;font-size:11px}
.reading-progress{position:fixed;top:76px;left:0;height:3px;width:0;background:var(--orange);z-index:31;pointer-events:none}
.article-hero{background:linear-gradient(100deg,#f5f8f5 0%,#e9f1e9 100%);border-bottom:1px solid #d9e7dc;padding:33px 0 70px;position:relative;overflow:hidden}
.article-hero>.shell{position:relative;z-index:2}
.breadcrumbs{display:flex;gap:12px;align-items:center;color:#60766a;font-size:12px;margin-bottom:67px}
.breadcrumbs a{font-weight:750;color:var(--green)}
.breadcrumbs a:hover{text-decoration:underline}
.article-hero .eyebrow{margin-bottom:16px}
.eyebrow-divider{padding:0 8px;color:#a0b7a7}
.article-hero h1{font-size:clamp(39px,4.8vw,67px);line-height:1.17;letter-spacing:-.05em;max-width:980px;margin:0 0 24px;font-weight:850}
.article-deck{max-width:820px;color:#50665b;font-size:18px;line-height:1.75;margin:0 0 30px}
.article-meta{display:flex;gap:13px;flex-wrap:wrap;align-items:center;color:#65776d;font-size:12px;font-weight:700}
.meta-dot{color:var(--orange)}
.hero-line-art{position:absolute;right:-50px;bottom:-190px;width:580px;height:580px;border:1px solid rgba(11,107,79,.14);border-radius:48% 52% 60% 40%;transform:rotate(-25deg)}
.hero-line-art:before,.hero-line-art:after{content:'';position:absolute;border:1px solid rgba(11,107,79,.18);border-radius:50%}
.hero-line-art:before{inset:48px 80px 30px 40px;transform:rotate(30deg)}
.hero-line-art:after{inset:110px 30px 120px 120px;transform:rotate(-40deg)}
.article-layout{display:grid;grid-template-columns:230px minmax(0,750px);gap:clamp(52px,8vw,125px);padding-top:70px;padding-bottom:95px;align-items:start}
.article-sidebar{position:sticky;top:114px}
.toc-panel{border-left:1px solid var(--line);padding-left:23px;display:grid;gap:14px}
.toc-title{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--green);font-weight:850;margin:0 0 8px}
.toc-panel a{font-size:12px;line-height:1.55;color:#6a7971}
.toc-panel a:hover,.toc-panel a.active{color:var(--green);font-weight:750}
.toc-panel .toc-reference{padding-top:11px;border-top:1px solid var(--line);color:var(--green);font-weight:800}
.key-points{background:#eef5ef;border:1px solid #d6e8d9;padding:25px 30px;display:grid;grid-template-columns:27px 1fr;gap:14px;margin-bottom:49px}
.key-icon{font-size:22px;line-height:1.1;color:var(--orange)}
.key-label{font-size:11px;letter-spacing:.14em;font-weight:850;text-transform:uppercase;color:var(--green);margin:0 0 12px}
.key-points ul{list-style:none;margin:0;padding:0;display:grid;gap:7px;font-size:14px;color:#32473a}
.key-points li:before{content:'—';color:var(--orange);margin-right:9px}
.prose{font-size:16px;line-height:1.85;color:#2d3a33}
.prose>p:first-child{font-size:18px;line-height:1.83;color:#22372b}
.prose h2{font-size:29px;line-height:1.35;letter-spacing:-.025em;color:var(--ink);margin:58px 0 16px;scroll-margin-top:105px}
.prose h3{font-size:20px;line-height:1.4;color:var(--ink);margin:37px 0 12px;scroll-margin-top:105px}
.prose p{margin:0 0 20px}
.prose strong{color:#143b2a}
.prose a:not(.citation){color:var(--green);text-decoration:underline;text-decoration-color:#8db9a0;text-underline-offset:3px}
.prose a:hover{color:#074d39}
.prose .citation{font-size:.78em;color:var(--green);font-weight:800;vertical-align:super;white-space:nowrap;padding:0 2px}
.prose ul,.prose ol{padding-left:25px;margin:0 0 27px}
.prose li{margin-bottom:9px}
.prose li::marker{color:var(--green);font-weight:700}
.prose table{width:100%;border-collapse:collapse;margin:27px 0 35px;font-size:13px;line-height:1.6}
.prose th,.prose td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.prose th{background:#eff5f0;color:var(--deep);font-weight:800}
.prose tr:nth-child(even){background:#fafbf9}
.prose h2#references{font-size:22px;border-top:1px solid var(--line);padding-top:33px;margin-top:70px}
.prose h2#references~ol{font-size:12px;line-height:1.65;color:#69766e;overflow-wrap:anywhere}
.article-note{border-left:3px solid var(--orange);background:#fbfaf6;margin:50px 0;padding:18px 23px;color:#6b665a;font-size:12px}
.related-block{margin-top:55px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0 28px}
.related-block .eyebrow{display:block;margin-bottom:13px}
.related-block>a{display:flex;justify-content:space-between;gap:25px;align-items:center;font-size:20px;line-height:1.4}
.related-block>a:hover{color:var(--green)}
.related-block>a span{color:var(--orange);font-size:23px}
.back-link{display:inline-block;color:var(--green);font-weight:750;font-size:13px;margin-top:28px}
@media(max-width:900px){.article-layout{grid-template-columns:1fr;gap:0}.article-sidebar{position:static;margin-bottom:35px}.toc-panel{border-left:0;border-bottom:1px solid var(--line);padding:0 0 22px;display:flex;flex-wrap:wrap;gap:9px 17px}.toc-title{flex-basis:100%;margin-bottom:2px}.toc-panel a{font-size:12px}.toc-panel .toc-reference{border:0;padding:0}.hero-grid{grid-template-columns:1.15fr .85fr}.brand small{display:none}}
@media(max-width:700px){.shell{width:min(100% - 36px,var(--max))}.site-header{height:64px}.nav-wrap{gap:12px}.brand strong{font-size:17px}.menu-button{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:white;padding:6px 10px;color:var(--green);font-size:12px;font-weight:750;min-height:40px}.site-nav{display:none;position:absolute;top:64px;left:0;right:0;background:white;border-bottom:1px solid var(--line);padding:17px 18px;box-shadow:0 14px 20px rgba(0,0,0,.06);flex-direction:column;align-items:stretch;gap:10px}.site-nav.open{display:flex}.site-nav>a{padding:9px 2px}.site-nav .nav-cta{justify-content:space-between;padding:10px 15px}.reading-progress{top:64px}.index-hero,.hero-grid{min-height:0}.hero-grid{display:block}.hero-copy{padding:65px 0 45px}.hero-copy h1{font-size:clamp(38px,11vw,55px);max-width:620px}.hero-deck{font-size:15px}.hero-visual{min-height:250px;height:260px;margin-top:-24px}.poly-art{width:min(360px,100%)}.visual-note{bottom:15px;right:10px}.evidence-grid{grid-template-columns:1fr}.evidence-grid>div,.evidence-grid>div:first-child{padding:12px 0;border-right:0;border-bottom:1px solid var(--line)}.evidence-grid>div:last-child{border:0}.articles-section{padding-block:70px 85px}.section-heading{display:block;margin-bottom:27px}.section-heading>p{margin-top:12px}.story-grid{grid-template-columns:1fr}.card-graphic{height:135px}.card-body{padding:26px}.about-section{padding:66px 0}.about-grid{display:block}.about-grid h2{font-size:34px}.footer-grid{grid-template-columns:1fr;gap:30px}.footer-links{grid-auto-flow:row;gap:9px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:5px}.article-hero{padding:20px 0 53px}.breadcrumbs{margin-bottom:45px}.article-hero h1{font-size:clamp(35px,9vw,52px)}.article-deck{font-size:16px}.article-layout{padding-top:36px;padding-bottom:70px}.key-points{padding:20px 19px;margin-bottom:35px}.prose{font-size:15px}.prose>p:first-child{font-size:16px}.prose h2{font-size:24px;margin-top:43px}.prose h3{font-size:19px}.prose table{display:block;overflow-x:auto}.related-block>a{font-size:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

.blog-wordmark{display:block;width:180px;height:auto;flex:none}

/* Buyer guides sit beside the existing research series on the journal index. */
.guides-section{padding:0 0 110px}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.guide-card{border:1px solid var(--line);background:#fff;padding:27px;display:flex;flex-direction:column;min-width:0}
.guide-tag{color:var(--green);font-size:10px;font-weight:850;letter-spacing:.12em}
.guide-card h3{font-size:clamp(21px,2vw,27px);line-height:1.27;letter-spacing:-.025em;margin:16px 0}
.guide-card h3 a:hover{color:var(--green)}
.guide-card p{font-size:14px;color:var(--muted);line-height:1.6;margin:0 0 24px}
.guide-note{color:var(--muted);font-size:13px;line-height:1.6;margin:24px 0 0;max-width:760px}
@media(max-width:900px){.guide-grid{grid-template-columns:1fr}.guides-section{padding-bottom:80px}}
@media(max-width:700px){.guides-section{padding-bottom:65px}.guide-card{padding:24px}}
.site-header .language-switcher{position:relative;flex:0 0 auto;font-size:13px}
.site-header .language-summary{display:flex;align-items:center;gap:6px;min-height:42px;padding:8px 10px;border:1px solid var(--line);cursor:pointer;list-style:none}
.site-header .language-summary::-webkit-details-marker{display:none}
.site-header .language-flag{display:block;width:24px;height:16px;object-fit:cover}
.site-header .language-options{position:absolute;top:calc(100% + 7px);right:0;z-index:35;width:190px;max-width:calc(100vw - 24px);background:#fff;border:1px solid var(--line);box-shadow:0 12px 24px #15201d1f;padding:6px}
.site-header .language-options a{display:flex;align-items:center;gap:8px;min-height:42px;padding:8px;color:var(--ink);font-size:12px}
.site-header .language-options a:hover,.site-header .language-options a[aria-current="page"]{background:var(--soft);color:var(--green)}
.site-header .language-check{margin-left:auto}
.research-enquiry{padding:54px 0 80px;border-top:1px solid var(--line)}
.research-enquiry h2{font-size:clamp(26px,3vw,38px);line-height:1.2;margin:0 0 13px}
.research-enquiry p:not(.eyebrow){max-width:720px;color:var(--muted);margin:0 0 24px}
.research-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:1100px){
  .site-header{height:auto;position:static}
  .nav-wrap{height:auto;min-height:76px;flex-wrap:wrap;padding-block:12px;gap:10px}
  .site-nav{display:flex;position:static;order:3;width:100%;flex-wrap:wrap;gap:8px 18px;padding:0;box-shadow:none;border:0}
  .site-nav>a{min-height:40px;padding:8px 0}
  .menu-button{display:none}
  .js .site-header{height:76px;position:sticky}
  .js .nav-wrap{height:76px;min-height:0;flex-wrap:nowrap;padding-block:0}
  .js .menu-button{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;padding:6px 10px;color:var(--green);font-size:12px;font-weight:750;min-height:40px;margin-left:auto}
  .js .site-nav{display:none;position:absolute;top:76px;left:0;right:0;order:unset;width:auto;background:#fff;border-bottom:1px solid var(--line);padding:14px 18px;box-shadow:0 14px 20px #0000000f;flex-direction:column;align-items:stretch;gap:4px}
  .js .site-nav.open{display:flex}
  .blog-wordmark{width:clamp(130px,35vw,180px)}
}