/* Site-wide editorial adaptation. Existing interactive components retain their own semantics. */
body.hl-design{--bg:var(--hl-paper);--bg-card:var(--hl-paper);--bg2:var(--hl-soft);--card:var(--hl-paper);--paper:var(--hl-paper);--text:var(--hl-ink);--text-primary:var(--hl-ink);--text-secondary:var(--hl-muted);--text-muted:var(--hl-muted);--border:var(--hl-line);--border-2:var(--hl-line);--border-card:var(--hl-line);--ed-paper:var(--hl-paper);--ed-ink:var(--hl-ink);--ed-muted:var(--hl-muted);--ed-line:var(--hl-line);--ed-accent:var(--hl-accent);--ed-surface:var(--hl-soft);--archive-paper:var(--hl-paper);--archive-ink:var(--hl-ink);--archive-line:var(--hl-line);--pm-surface-page:var(--hl-paper);--pm-surface-container:var(--hl-paper);--pm-surface-elevated:var(--hl-soft);--pm-text-primary:var(--hl-ink);--pm-text-secondary:var(--hl-muted);--pm-text-muted:var(--hl-muted);--pm-border:var(--hl-line);--pm-font-sans:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:visible}
.hl-design :is(h1,h2,h3,h4){font-family:inherit;overflow-wrap:break-word}
.hl-design :is(pre,code){font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.hl-design pre{max-width:100%;overflow-x:auto;white-space:pre;font-size:13px;line-height:1.7;background:var(--hl-soft);color:var(--hl-ink);border:1px solid var(--hl-line);border-radius:0;padding:20px}
.hl-design img{height:auto}
.hl-design :is(audio,video,iframe){max-width:100%}
.hl-design :is(input,textarea,select){max-width:100%;color:var(--hl-ink);background:var(--hl-paper);border-color:var(--hl-line);border-radius:0}
.hl-design :is(input,textarea)::placeholder{color:var(--hl-muted)}
.hl-design .hl-table-scroll{max-width:100%;overflow-x:auto;margin:24px 0;overscroll-behavior-inline:contain}
.hl-design table{border-collapse:collapse;color:var(--hl-ink);font-size:14px}
.hl-design :is(th,td){border-color:var(--hl-line);line-height:1.7}
.hl-design :is(.pagination,.pager,.lesson-nav,.lesson-pagination,.post-navigation){display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding:24px 0;border-top:1px solid var(--hl-line);border-radius:0;background:none}
.hl-design #themeToggleBtn{flex:none}
.hl-design> #themeToggleBtn{position:fixed;right:20px;top:20px;z-index:80;background:var(--hl-paper)}
.hl-design .site-nav__links a{min-height:0}
.hl-design .site-footer-compliance{position:relative;clear:both}
/* News and legacy article reading canvas. Charts/data keep their original structure. */
.hl-design:is(.hl-news,.hl-open,.hl-reading,.hl-generic,.hl-forum-article) :is(main#content,.open-shell,.app-main,.article-body,.post-content,.ed-page-content){color:var(--hl-ink);background:transparent}
.hl-design:is(.hl-news,.hl-open) :is(main#content,.open-shell){width:var(--hl-shell);max-width:1280px;margin:48px auto 64px;padding:0}
.hl-design:is(.hl-reading,.hl-generic,.hl-forum-article)>main{width:min(1040px,calc(100% - 80px));margin:48px auto 64px;padding:0;min-width:0;background:none;border:0;border-radius:0;box-shadow:none}
.hl-design:is(.hl-reading,.hl-forum-article) :is(.article-header,.post-header){padding:0 0 32px;border:0;border-bottom:1px solid var(--hl-line);background:none;margin-bottom:32px}
.hl-design:is(.hl-reading,.hl-forum-article) :is(.article-header h1,.post-header h1){font-size:44px;line-height:1.4;letter-spacing:-.04em;color:var(--hl-ink);margin:16px 0 24px}
.hl-design:is(.hl-reading,.hl-forum-article) :is(.article-body,.post-content){max-width:760px;margin-inline:auto;font-size:18px;line-height:1.75}
.hl-design:is(.hl-reading,.hl-forum-article) :is(.article-body,.post-content) :is(h2,h3){margin-top:36px;border-color:var(--hl-line);color:var(--hl-ink);line-height:1.5}
.hl-design:is(.hl-reading,.hl-forum-article) :is(.article-sub,.post-meta,.meta,.back-link){color:var(--hl-muted);font-size:13px}
.hl-design:is(.hl-reading,.hl-forum-article) :is(.tldr-card,.tldr-h){background:var(--hl-soft);color:var(--hl-ink);border-color:var(--hl-line);border-radius:0;box-shadow:none}
.hl-news :is(.finance-mast,.tech-hero,.city-masthead,.morning-mast,.prototype-masthead){padding:0 0 32px;margin:0 0 32px;background:none;border:0;border-bottom:1px solid var(--hl-ink);box-shadow:none}
.hl-news :is(.finance-mast,.tech-hero,.city-masthead,.morning-mast) h1{font-size:44px;line-height:1.4;letter-spacing:-.04em;color:var(--hl-ink);max-width:1100px}
.hl-news :is(.prototype-date,.prototype-eyebrow,.fin-kicker){font-size:12px;letter-spacing:.06em;color:var(--hl-muted)}
.hl-news :is(.fin-lead,.tech-quick,.tech-deep,.tech-engineering,.tech-risks,.city-policy,.city-cases,.city-vendors,.city-tenders,.city-government-actions,.city-stats,.city-contents,.morning-lead,.prototype-sources,.finance-disclaimer){background:none;border:0;border-top:1px solid var(--hl-line);border-radius:0;box-shadow:none;padding:24px 0;color:var(--hl-ink)}
.hl-news :is(.fin-body,.city-body-grid,.city-lead-grid){gap:40px}
.hl-news :is(.fin-h,.city-body-grid h2,.tech-deep h2){font-size:24px;color:var(--hl-ink);line-height:1.5}
.hl-news :is(.source-item,.topic-group,.chart){border-color:var(--hl-line);border-radius:0;background:var(--hl-paper);box-shadow:none}
.hl-news :is(p,li){line-height:1.8}
.hl-open .open-hero{padding:0 0 32px;margin-bottom:32px;border-bottom:1px solid var(--hl-ink);background:none}
.hl-open .open-hero h1{font-size:56px;line-height:1.2;letter-spacing:-.05em;color:var(--hl-ink)}
.hl-open :is(.open-editorial,.repo-ranking,.model-ranking,.open-analysis,.open-deep,.open-sources,.developer-view){background:none;border-radius:0;border:0;border-top:1px solid var(--hl-line);padding:24px 0;box-shadow:none;color:var(--hl-ink)}
.hl-design .kn-next{width:var(--hl-shell);max-width:1280px;margin:48px auto;padding:24px 0;border:0;border-top:1px solid var(--hl-ink);border-radius:0;background:none;color:var(--hl-ink)}
.hl-design .kn-next :is(.kn-next-grid>div,.kn-next-grid>article){background:none;border-radius:0;box-shadow:none;border-color:var(--hl-line)}
.hl-reading .app-shell{display:block;max-width:1040px;width:calc(100% - 80px);margin:48px auto;background:none}
.hl-reading .app-main{width:100%;margin:0;padding:0;max-width:none;min-width:0}
.hl-reading .app-main> :is(h1,.article-header){font-size:44px;line-height:1.4;max-width:1040px;margin-bottom:32px}
.hl-reading .app-main> :is(p,section,.analysis-section,.sources-section){max-width:760px;margin-left:auto;margin-right:auto}
/* Course catalog, lesson, progress/assessment: flatten shells; keep controls and hierarchy. */
.hl-design:is(.hl-courses,.hl-course-reader){--course-paper:var(--hl-paper);--course-surface:var(--hl-paper);--course-ink:var(--hl-ink);--course-muted:var(--hl-muted);--course-line:var(--hl-line);--ed-blue:var(--hl-accent)}
.hl-design:is(.hl-courses,.hl-course-reader) :is(.course-library-layout,.checkin-layout){width:var(--hl-shell);max-width:1280px;margin:48px auto;display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start}
.hl-design:is(.hl-courses,.hl-course-reader) :is(.course-page,.course-catalog,.course-wrap,.course-library-legacy-content){min-width:0;width:100%;max-width:none;padding:0;margin:0;background:none;border:0;box-shadow:none;color:var(--hl-ink)}
.hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail{width:100%;max-width:100%;min-width:0;padding:16px 0;border:0;border-top:1px solid var(--hl-ink);border-radius:0;background:none;color:var(--hl-ink);box-shadow:none;position:sticky;top:24px}
.hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__summary{font-size:14px;color:var(--hl-ink);background:none;border-radius:0}
.hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__body{padding:16px 0;max-width:100%;font-size:12px}
.hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__body a{white-space:normal;overflow-wrap:anywhere;color:var(--hl-muted)}
.hl-design:is(.hl-courses,.hl-course-reader) :is(.catalog-header,.course-hero,.c-hero,.checkin-hero){padding:0 0 32px;margin:0 0 32px;border:0;border-bottom:1px solid var(--hl-ink);border-radius:0;background:none;box-shadow:none;color:var(--hl-ink)}
.hl-design:is(.hl-courses,.hl-course-reader) :is(.catalog-header h1,.course-hero h1,.c-hero h1,.checkin-hero h1){font-size:44px;line-height:1.35;letter-spacing:-.04em;color:var(--hl-ink)}
.hl-design:is(.hl-courses,.hl-course-reader) :is(.course-summary,.course-title-en,.catalog-header p,.course-meta,.course-eyebrow){color:var(--hl-muted)}
.hl-courses .course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}
.hl-courses .course-card{display:flex;flex-direction:column;gap:12px;min-width:0;height:auto;padding:24px 0;border:0;border-top:1px solid var(--hl-line);border-radius:0;background:none;box-shadow:none;transform:none}
.hl-courses .course-card strong{font-size:22px;line-height:1.45;color:var(--hl-ink)}
.hl-courses :is(.course-card__summary,.course-card__title-en,.course-card__meta){font-size:12px;line-height:1.75;color:var(--hl-muted)}
.hl-courses .catalog-section{padding:0;margin:0 0 48px}
.hl-courses .catalog-section>h2{font-size:22px;padding:16px 0;border:0;border-top:1px solid var(--hl-ink);color:var(--hl-ink)}
.hl-course-reader :is(.course-section,.checkin-section,.prose,.lesson-list){max-width:800px;font-size:17px;line-height:1.75;color:var(--hl-ink);background:none}
.hl-course-reader :is(.lesson-card,.assessment-card,.rubric-card,.source-disclosure,.checkin-disclosure,.checkin-question){border-color:var(--hl-line);border-radius:0;background:var(--hl-paper);box-shadow:none;color:var(--hl-ink)}
.hl-course-reader .lesson-card{padding:20px 0;border:0;border-top:1px solid var(--hl-line)}
.hl-course-reader .lesson-media{width:var(--hl-shell);max-width:1280px;margin:32px auto;border-radius:0;background:var(--hl-soft);border-color:var(--hl-line)}
.hl-course-reader> :is(.course-library-legacy-content,.checkin-rail){width:var(--hl-shell);max-width:1040px;margin:32px auto}
.hl-course-reader .course-wrap{max-width:800px;margin:auto}
.hl-design :is(.course-footer,.prototype-footer,.open-footer){width:var(--hl-shell);margin:48px auto 0;padding:24px 0 48px;border-top:1px solid var(--hl-line);background:none;color:var(--hl-muted);font-size:12px}
/* Innovation directory/guide; visualization canvas stays intact. */
.hl-lab .lab{width:var(--hl-shell);max-width:1280px;margin:48px auto;padding:0;color:var(--hl-ink)}
.hl-lab .lab> :is(h1,.lead){max-width:1000px}
.hl-lab .lab h1{font-size:52px;line-height:1.35;letter-spacing:-.04em;color:var(--hl-ink)}
.hl-lab :is(.feature,.feature-content,.course-index){border-radius:0;box-shadow:none;background:none;border-color:var(--hl-line);color:var(--hl-ink)}
.hl-lab .feature{padding:32px 0;border:0;border-top:1px solid var(--hl-ink);gap:40px}
.hl-lab :is(.lead,.intro,.source,.lab-footer){color:var(--hl-muted);line-height:1.8}
.hl-lab :is(.button,.pill){border-radius:0;border-color:var(--hl-line)}
.hl-lab .button:not(.secondary){background:var(--hl-ink);color:var(--hl-paper)}
.hl-lab-app :is(.app,.workspace,.app-shell){max-width:1440px;margin:auto;color:var(--hl-ink)}
.hl-lab-app:has(#arena) :is(.topbar,.panel,.arena-panel,.brain-panel,.tools,.telemetry,.intro){background:var(--hl-paper);border-color:var(--hl-line);border-radius:0;box-shadow:none;color:var(--hl-ink)}
.hl-lab-app:has(#arena) :is(.app h1,.app h2,.app h3,.panel h2){font-family:inherit;color:var(--hl-ink)}
/* Community list, original publishing form, knowledge search and full site search. */
.hl-forum .container,.hl-editor .write-container,.hl-forum-article .post-container,.hl-search .search-page{width:var(--hl-shell);max-width:1100px;margin:48px auto;padding:0;background:none;border:0;color:var(--hl-ink)}
.hl-forum .forum-head,.hl-editor .write-header,.hl-knowledge .kb-hero{padding:0 0 32px;margin:0 0 32px;border-bottom:1px solid var(--hl-ink);background:none;color:var(--hl-ink)}
.hl-forum h1,.hl-editor h1,.hl-knowledge .kb-hero h1,.hl-search h1{font-size:48px;line-height:1.3;letter-spacing:-.04em;color:var(--hl-ink)}
.hl-forum .list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.hl-forum .article-card{padding:24px 0;border:0;border-top:1px solid var(--hl-line);border-radius:0;background:none;box-shadow:none;transform:none;color:var(--hl-ink)}
.hl-forum .article-card h2{font-size:22px;color:var(--hl-ink);line-height:1.5}
.hl-forum .article-card p,.hl-forum .meta,.hl-forum .section-label{color:var(--hl-muted);font-size:13px}
.hl-forum :is(.write-btn,.search-btn),.hl-editor .btn-publish{border-radius:0;background:var(--hl-ink);color:var(--hl-paper);border:1px solid var(--hl-ink)}
.hl-editor :is(.editor-wrapper,.editor-toolbar){border-radius:0;background:var(--hl-soft);border-color:var(--hl-line)}
.hl-editor :is(input,textarea){padding:12px;border:1px solid var(--hl-line);line-height:1.75}
.hl-editor textarea{min-height:360px}
.hl-knowledge .kb-hero{width:var(--hl-shell);max-width:1280px;margin:48px auto 32px}
.hl-knowledge .kb-container{width:var(--hl-shell);max-width:1280px;margin:0 auto 64px;padding:0;min-width:0}
.hl-knowledge :is(.kb-search-wrap,.kb-answer,.wsec,.wiki,.c,.sr){background:var(--hl-paper);border-color:var(--hl-line);border-radius:0;box-shadow:none;color:var(--hl-ink)}
.hl-knowledge .kb-search-row{gap:12px}
.hl-knowledge :is(.kb-search-btn,.kb-ask-btn){border-radius:0;background:var(--hl-ink);color:var(--hl-paper)}
.hl-knowledge .wsec{border:0;border-top:1px solid var(--hl-line);padding:24px 0}
.hl-knowledge :is(.wsec-h,.wsec-t,.wi-t){color:var(--hl-ink)}
.hl-knowledge :is(.wi,.wmore){border-radius:0;background:var(--hl-soft);border-color:var(--hl-line)}
.hl-search .search-box{margin:32px 0 20px}
.hl-search #search-input{border-radius:0;border-color:var(--hl-line);font-size:18px}
.hl-search :is(.result,.result-card){padding:24px 0;border:0;border-top:1px solid var(--hl-line);border-radius:0;background:none;color:var(--hl-ink)}
.hl-search #section-chips button{border-radius:0;color:var(--hl-muted);background:none;border-color:var(--hl-line)}
/* Taxonomy/archive sidebars, docs and engineering have their own navigation controls. */
.hl-taxonomy .app-shell{position:relative;display:grid;grid-template-columns:180px 320px minmax(0,1fr);width:var(--hl-shell);max-width:1280px;height:auto;min-height:700px;margin:32px auto;background:none}
.hl-taxonomy :is(.app-sidebar,.app-middle,.app-main){position:relative;inset:auto;height:auto;max-height:none;min-width:0;width:auto;margin:0;padding:20px;background:none;border-color:var(--hl-line);color:var(--hl-ink)}
.hl-taxonomy :is(.sidebar-link,.middle-item){border-radius:0;background:none;color:var(--hl-muted)}
.hl-taxonomy .middle-header{background:none;border-color:var(--hl-line)}
.hl-design:is(.hl-docs,.hl-not-found){--vp-c-bg:var(--hl-paper);--vp-c-bg-alt:var(--hl-soft);--vp-c-bg-elv:var(--hl-paper);--vp-c-bg-soft:var(--hl-soft);--vp-c-text-1:var(--hl-ink);--vp-c-text-2:var(--hl-muted);--vp-c-text-3:var(--hl-muted);--vp-c-divider:var(--hl-line);--vp-c-brand-1:var(--hl-accent);--vp-font-family-base:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
.hl-docs .VPNav,.hl-not-found .VPNav{position:relative;top:auto;background:var(--hl-paper)}
.hl-docs .VPSidebar{top:220px;max-height:calc(100dvh - 240px);background:var(--hl-soft)}
.hl-docs .VPContent.has-sidebar{padding-top:32px}
.hl-docs .VPDoc :is(h1,h2,h3){letter-spacing:-.025em;color:var(--hl-ink)}
.hl-docs .vp-doc{font-size:17px;line-height:1.75}
.hl-docs :is(.VPFeature,.pager-link),.hl-not-found .pager-link{border-radius:0;box-shadow:none;border-color:var(--hl-line);background:none}
.hl-not-found .NotFound{padding:64px 24px 100px;color:var(--hl-ink)}
.hl-engineering>main,.hl-engineering .site-header{width:var(--hl-shell);max-width:1280px;margin:auto;background:none;border-color:var(--hl-line);color:var(--hl-ink)}
.hl-engineering :is(.manual-masthead,.preface,.toc,.colophon,.stat-block){border-radius:0;box-shadow:none;background:none;border-color:var(--hl-line);color:var(--hl-ink)}
.hl-engineering .manual-title{font-family:inherit;color:var(--hl-ink);letter-spacing:-.04em}
.hl-engineering :is(.modal,.modal-header,.modal-footer){background:var(--hl-paper);color:var(--hl-ink);border-color:var(--hl-line);border-radius:0}
.hl-design:is(.hl-tool,.hl-dashboard,.hl-radar,.hl-webinar){--bg:var(--hl-paper);--surface:var(--hl-paper);--text:var(--hl-ink);--border:var(--hl-line)}
.hl-design:is(.hl-tool,.hl-dashboard,.hl-radar,.hl-webinar) :is(.container,.shell,.page,.wrap,.radar-shell){width:var(--hl-shell);max-width:1280px;margin:40px auto;min-width:0;background:none;color:var(--hl-ink)}
.hl-design:is(.hl-tool,.hl-dashboard,.hl-radar,.hl-webinar) :is(.card,.panel,.stat-card,.radar-card){border-radius:0;box-shadow:none;border-color:var(--hl-line);background:var(--hl-paper);color:var(--hl-ink)}
@media(max-width:991px){
 .hl-design:is(.hl-courses,.hl-course-reader) :is(.course-library-layout,.checkin-layout){grid-template-columns:minmax(0,1fr);gap:24px}
 .hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail{position:static}
 .hl-taxonomy .app-shell{grid-template-columns:160px minmax(0,1fr)}
 .hl-taxonomy .app-main{grid-column:1/-1}
 .hl-docs .VPSidebar{top:180px}
}
@media(max-width:767px){
 .hl-design:is(.hl-reading,.hl-generic,.hl-forum-article)>main,.hl-reading .app-shell{width:var(--hl-shell);margin-top:32px}
 .hl-design:is(.hl-news,.hl-open) :is(main#content,.open-shell){margin-top:32px}
 .hl-news :is(.finance-mast,.tech-hero,.city-masthead,.morning-mast) h1,.hl-design:is(.hl-reading,.hl-forum-article) :is(.article-header h1,.post-header h1),.hl-reading .app-main>h1{font-size:30px}
 .hl-open .open-hero h1{font-size:36px}
 .hl-news :is(.fin-body,.city-body-grid,.city-lead-grid){display:block}
 .hl-news :is(.fin-main,.fin-markets,.fin-analysis){min-width:0;width:100%}
 .hl-design:is(.hl-courses,.hl-course-reader) :is(.catalog-header h1,.course-hero h1,.c-hero h1,.checkin-hero h1){font-size:32px}
 .hl-courses .course-grid,.hl-forum .list{grid-template-columns:minmax(0,1fr)}
 .hl-design:is(.hl-courses,.hl-course-reader) :is(.course-library-layout,.checkin-layout){margin-top:32px}
 .hl-course-reader :is(.course-section,.checkin-section,.prose){font-size:16px}
 .hl-lab .lab h1{font-size:34px}
 .hl-lab .feature,.hl-lab .course-layout{display:block}
 .hl-forum h1,.hl-editor h1,.hl-knowledge .kb-hero h1,.hl-search h1{font-size:34px}
 .hl-forum .forum-head{display:block}
 .hl-forum .head-actions{margin-top:20px}
 .hl-forum .container,.hl-editor .write-container,.hl-forum-article .post-container,.hl-search .search-page{margin-top:32px}
 .hl-knowledge .kb-search-row{flex-wrap:wrap}
 .hl-knowledge .kb-search-wrap{width:100%;min-width:0}
 .hl-taxonomy .app-shell{display:block;width:var(--hl-shell)}
 .hl-taxonomy :is(.app-sidebar,.app-middle,.app-main){padding:16px 0;transform:none;max-width:100%}
 .hl-taxonomy .app-sidebar{position:relative;display:block;width:100%}
 .hl-docs .VPSidebar{top:0;max-height:none}
 .hl-docs .VPDoc{padding:24px 18px}
 .hl-docs .vp-doc{font-size:16px}
 .hl-design .kn-next{margin-top:32px}
}
/* Constrain legacy intrinsic grid tracks; scroll belongs to tables, never the document. */
.hl-tool .main{width:var(--hl-shell);max-width:1280px;margin:40px auto;padding:0;grid-template-columns:minmax(0,1fr) minmax(260px,340px)}
.hl-tool .main>*,.hl-tool :is(.card,.res,.preset,.chead){min-width:0;max-width:100%;overflow-wrap:anywhere}
.hl-tool .preset{white-space:normal;flex-wrap:wrap}
.hl-tool .res{position:static}
.hl-design:is(.hl-docs,.hl-not-found) .VPNavBar .content-body{margin-right:0;padding-right:0;min-width:0;width:auto}
.hl-design:is(.hl-docs,.hl-not-found) .VPNavBar :is(.container,.content){min-width:0;max-width:100%}
.hl-engineering{overflow-wrap:anywhere}
.hl-engineering :is(.lesson-layout,.lesson-shell,.lesson-content,.lesson-main,.timeline,.timeline-list){min-width:0;max-width:100%}
.hl-dashboard :is(.grid-2,.grid-3){grid-template-columns:repeat(2,minmax(0,1fr))}
.hl-dashboard :is(.section,.hour-chart,.day-chart){min-width:0;max-width:100%;overflow-x:auto}
@media(max-width:767px){.hl-tool .main{grid-template-columns:minmax(0,1fr)}.hl-dashboard :is(.grid-2,.grid-3){grid-template-columns:minmax(0,1fr)}.hl-engineering *{min-width:0;overflow-wrap:anywhere}}
.hl-engineering :not(pre):not(code){overflow-wrap:anywhere}
.hl-engineering> :is(p,div,section,article){max-width:100%}

.hl-design:is(.hl-courses,.hl-course-reader){--course-link:var(--hl-accent);--course-focus:var(--hl-accent)}
.hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__body a:is(:hover,[aria-current="page"]){background:var(--hl-soft);color:var(--hl-accent);border-radius:0}
.hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__course-group[open]>summary{color:var(--hl-accent)}
.hl-knowledge .kb-hero h1 em{background:none;-webkit-text-fill-color:var(--hl-ink);color:var(--hl-ink)}
.hl-knowledge .kb-search-wrap input{border:1px solid var(--hl-line);border-radius:0;background:var(--hl-paper);box-shadow:none}
@media(max-width:991px){
 .hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__summary{display:block}
 .hl-design:is(.hl-courses,.hl-course-reader) .checkin-rail__body{max-height:52vh;overflow-y:auto;border-right:0}
 .hl-design:is(.hl-courses,.hl-course-reader)> .checkin-rail{position:static;inset:auto;max-width:var(--hl-shell);height:auto}
}
@media(max-width:767px){
 .hl-knowledge .kb-search-row{display:grid;grid-template-columns:minmax(0,1fr) 44px;align-items:stretch;padding:0}
 .hl-knowledge .kb-search-wrap{grid-column:1/-1}
 .hl-knowledge .kb-search-btn{width:44px;height:44px}
 .hl-knowledge .kb-ask-btn{min-height:44px}
}
/* Dark simulation stages keep legible overlays while their surrounding reading panels follow the site theme. */
.hl-lab-app .modes{background:var(--hl-soft);border-color:var(--hl-line)}
.hl-lab-app .modes .mode{color:var(--hl-muted);background:none;border-color:transparent}
.hl-lab-app .modes .mode.active{color:var(--hl-accent);background:var(--hl-paper);border-color:var(--hl-line)}
.hl-lab-app .arena-wrap{--text:#edf0f1;--ink:#edf0f1;--muted:#adc0ce;color:#edf0f1}
.hl-lab-app .arena-wrap :is(h1,h2,h3){color:inherit}
.hl-lab-app .topbar{flex-wrap:wrap;gap:12px}
.hl-lab-app .topbar>.theme-toggle{margin-left:auto}
/* Application headers stay below the global navigation instead of intercepting its controls. */
.hl-engineering .site-header{position:relative;inset:auto;z-index:auto}
.hl-docs .sticky-nav{position:relative;inset:auto;transform:none;width:var(--hl-shell);max-width:1280px;margin:16px auto;border-radius:0;box-shadow:none;background:var(--hl-paper);z-index:1}

/* Immersive game surfaces keep their original contrast; the surrounding page remains editorial. */
.hl-lab-app :is(.game-shell,.lab,.console,.command-layout,.overlay){--text:#edf0f1;--ink:#edf0f1;--muted:#afbec8;--line:#3e4c55;--accent:#91b9f2;color:#edf0f1}
.hl-lab-app .topbar{color:var(--hl-ink)}
.hl-lab-app:has(>canvas#game) .site-footer-compliance{position:fixed;inset:auto 0 0;z-index:40;width:100%;margin:0;padding:3px 8px;font-size:9px;line-height:1.5;background:rgba(21,25,28,.9);color:#dce4ea}
.hl-lab-app :is(.lab,.console,.command-layout,.game-shell,.overlay) :is(h1,h2,h3){color:var(--ink)}