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20px;color:var(--color-heading)}.mark{width:28px;height:28px;display:block}.r-stats{display:flex;margin-top:32px;border-block:1px solid var(--color-border);padding:18px 0}.r-stats>div{padding:0 20px;border-right:1px solid var(--color-border);display:flex;flex-direction:column;gap:4px}.r-stats>div:first-child{padding-left:0}.r-stats>div:last-child{border:0}.r-stats b{font:500 20px/27px var(--font-heading)}.r-stats span{font-size:12px;line-height:18px;color:var(--color-muted)}.r-feature{margin:40px 0 56px}.r-feature h2{font-size:27px;line-height:36px;margin-bottom:24px}.r-feature h3{font-size:18px;line-height:27px}.r-caveat{font-size:13px;line-height:21px;color:var(--color-muted);margin:16px 0}.r-tools{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--color-border);margin:40px 0}.r-tools a{padding:28px;text-decoration:none;border-right:1px solid var(--color-border);display:grid;gap:12px}.r-tools a:first-child{background:var(--color-heading);color:white}.r-tools 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small{display:block;color:var(--color-muted);margin-bottom:8px}.r-article-head{max-width:1080px}.r-article-head h1{font-size:36px;line-height:1.35;margin:16px 0 28px}.r-meta{display:flex;flex-wrap:wrap;gap:8px 24px;border-block:1px solid var(--color-border);padding:16px 0;margin-bottom:40px;font-size:13px;color:var(--color-muted)}.r-columns{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px}.r-prose{max-width:900px;min-width:0;overflow-wrap:anywhere}.r-prose p,.r-prose ul,.r-prose ol,.r-prose blockquote{margin:0 0 22px}.r-prose li{margin:8px 0}.r-prose h2{font-size:27px;line-height:36px;margin:40px 0 20px}.r-prose h3{font-size:22px;line-height:32px;margin:32px 0 18px}.r-prose h4{margin:24px 0 16px}.r-prose blockquote{border-left:3px solid var(--color-accent);padding:20px;background:var(--color-surface)}.r-prose .table-wrap{margin:24px 0}.r-prose table{min-width:540px}.r-prose td:first-child{font-weight:600}.r-prose a{text-decoration:underline;text-underline-offset:3px}.r-sidebar{align-self:start;position:sticky;top:116px;max-height:calc(100vh - 140px);overflow:auto;padding:24px;background:var(--color-surface);border-top:3px solid var(--color-accent)}.r-sidebar h2{font-size:18px;line-height:27px;margin-bottom:16px}.r-sidebar ol{list-style:none;padding:0;margin:0}.r-sidebar a{display:block;padding:10px 8px;text-decoration:none;font-size:13px;line-height:21px;border-left:2px solid transparent}.r-sidebar a[aria-current=page]{background:white;border-left-color:var(--color-action);font-weight:700}.r-sources{margin-top:40px;padding:24px;background:var(--color-surface)}.r-sources h2{margin-top:0}.r-sources li{font-size:14px}.r-sources small{display:block;color:var(--color-muted)}.r-toolbar{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.r-start{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--color-border)}.r-start a{padding:28px;border-right:1px solid 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var(--color-border)}.r-board article{padding:24px;border-right:1px solid var(--color-border);border-bottom:1px solid var(--color-border);display:grid;align-content:start;gap:18px;font-size:15px;line-height:24px}.r-board .action-box{padding:16px;background:var(--color-surface)}.r-filters{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.r-filters button{min-height:44px;border:1px solid var(--color-border-strong);background:white;border-radius:4px;padding:0 16px;cursor:pointer;font:600 14px var(--font-body);color:var(--color-heading)}.r-filters button[aria-pressed=true]{background:var(--color-heading);color:white}.r-hiring{grid-template-columns:1fr 1fr}.r-pay{font-size:19px;line-height:28px;color:var(--color-link);font-weight:600}.r-questions a:hover{background:var(--color-heading);color:white}.r-questions a:hover h3,.r-questions a:hover span{color:white}.r-big-number{font:500 34px var(--font-heading);color:var(--color-border-strong)}.r-mail{max-width:900px;border:1px solid var(--color-border);margin:24px 0}.r-mail header{padding:14px 24px;background:var(--color-surface);display:flex;justify-content:space-between;font:500 13px var(--font-technical)}.r-mail div{padding:32px;display:grid;gap:20px}.r-scale{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center;margin:24px 0;font-size:14px}.r-scale-track{background:var(--color-surface);height:32px;position:relative;border-bottom:1px solid var(--color-border)}.r-scale-fill{height:100%;background:var(--color-action);min-width:2px}.r-scale-range{position:absolute;height:100%;background:repeating-linear-gradient(45deg,var(--color-missing),var(--color-missing) 2px,var(--color-tint) 2px,var(--color-tint) 6px)}.r-schedule{min-width:760px}.r-schedule td{position:relative}.stage-bar{display:block;background:var(--color-action);height:24px;color:var(--color-heading);font-size:12px;text-decoration:none}.r-stage-complete{accent-color:var(--color-link);width:20px;height:20px}.r-status{font-size:13px;color:var(--color-muted)}
@media(max-width:1180px){.mega-group{padding-inline:10px}.mega-inner{gap:18px}.header-tools .ws-btn{display:none}}
@media(max-width:1024px){.mega{display:none!important}.mobile-research{display:block;border-left:3px solid var(--color-action);margin:8px 0 16px;padding-left:16px}.mobile-research a{display:flex!important;justify-content:space-between;white-space:normal!important;align-items:center;min-height:44px!important;font-size:14px!important}.mobile-research .r-label{margin-top:16px}nav.main{max-height:calc(100dvh - 90px);overflow:auto}nav.main>ul>li{border-bottom:1px solid var(--color-border)}nav.main>ul>li>a,.r-nav-trigger{min-height:52px;display:flex;align-items:center}.r-hero{gap:32px}.r-hero h1,.r-library h1{font-size:34px}.r-columns{grid-template-columns:1fr;gap:32px}.r-sidebar{position:static;max-height:none}.r-board{grid-template-columns:1fr 1fr}.r-article-head h1{font-size:30px}}
@media(max-width:720px){.header-in{flex-wrap:nowrap}.brand{width:156px}.brand img{height:52px}.header-in .header-tools{display:none}.menu-btn{margin-left:auto}.r-page{padding-top:24px}.r-breadcrumb{margin-bottom:24px}.r-hero,.r-library-intro{grid-template-columns:1fr;gap:24px}.r-photo{grid-row:1}.r-photo>img{aspect-ratio:16/9}.r-hero h1,.r-library h1{font-size:29px;line-height:1.35;margin:12px 0 20px}.r-stats b{font-size:17px}.r-stats>div{padding-inline:12px}.r-tools,.r-grid,.r-start,.r-board{grid-template-columns:1fr}.r-tools a,.r-start a{border-right:0;border-bottom:1px solid var(--color-border)}.r-group-title{display:block}.r-group-title p{margin-top:8px}.r-row{grid-template-columns:28px 1fr;gap:12px}.r-row>span:last-child{grid-column:2}.r-row h3{font-size:17px;line-height:26px}.r-explorer{grid-template-columns:1fr}.r-tabs{display:flex;overflow:auto;border-right:0}.r-tabs button{min-width:190px;border-right:1px solid var(--color-border)}.r-detail{padding:24px}.r-article-head h1{font-size:27px}.r-meta{gap:8px 16px}.r-quality dl{grid-template-columns:1fr 1fr}.r-scale{grid-template-columns:1fr;gap:8px}.r-pager{gap:16px}.r-feature h2,.r-group h2{font-size:24px;line-height:33px}.r-search{padding:20px}.r-prose{font-size:16px;line-height:27px}.r-prose h3{font-size:20px}.r-library-intro img{max-height:220px}.r-mail div{padding:24px}.r-tools a{padding:24px}}
@media print{header.site,.r-sidebar,.r-toolbar,footer{display:none!important}.r-columns{display:block}.r-page{padding:0}.r-prose{max-width:none}.r-prose .table-wrap{overflow:visible}.r-prose table{min-width:0}.r-feature{break-inside:avoid}body{font-size:12px}}
.wrap.r-page{padding:40px var(--margin) 88px}.r-library-intro>img{object-position:50% 20%}img[src$="hub-01.webp"],img[src$="hub-06.webp"]{object-position:50% 20%}img[src$="hub-11.webp"]{object-position:50% 80%}
@media(max-width:1440px){.header-tools .search{display:none}}
@media(max-width:720px){.wrap.r-page{padding-top:24px}}

.mobile-extra{display:none}.mobile-research a[aria-current=page]{color:var(--color-link);font-weight:700;border-left:2px solid var(--color-action);padding-left:8px}
@media(max-width:1024px){.mobile-extra{display:block}}

/* Refinement: preserve layout while repairing focus, anchors and form accessibility. */
.r-nav-trigger:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}.form-trap{position:absolute!important;left:-10000px;width:1px;height:1px;overflow:hidden}.example-tag{display:inline-block;font:500 11px/18px var(--font-technical);color:var(--color-link);border:1px solid var(--color-border);border-radius:4px;padding:2px 6px;vertical-align:middle}button[aria-busy=true],form[aria-busy=true] button[type=submit]{cursor:wait}

.r-card>img[src="/assets/library-08.jpg"]{object-position:50% 70%}

/* Approved final additions: semantic headings, article photography, error page. */
h3.heading-body{font:700 19px/27px var(--font-body);color:var(--color-heading);letter-spacing:normal;margin:0}.role-list .heading-body{margin-bottom:12px}footer h3.heading-body{color:#fff;margin-bottom:10px}h2.heading-dialog{font:500 22px/30px var(--font-heading);letter-spacing:-.025em}.r-article-image{margin:0 0 32px}.r-article-image img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius)}.r-not-found{max-width:860px;padding-block:72px 112px}.r-not-found h1{margin:16px 0 24px}.r-not-found .r-toolbar{margin-top:32px}@media(max-width:720px){h2.heading-dialog{font-size:20px;line-height:28px}.r-article-image{margin-bottom:24px}.r-not-found{padding-block:48px 64px}}

@media(min-width:1025px){nav.main ul{align-items:center}nav.main>ul>li:not(.mobile-extra){display:flex;align-items:center}nav.main>ul>li>a,nav.main .r-nav-trigger{display:inline-flex;align-items:center;padding:8px 0;line-height:22px}}