:root{--bhs-ink:#0b1720;--bhs-deep:#071c28;--bhs-deep-2:#0b2832;--bhs-mint:#6fe4c2;--bhs-mint-soft:#dff8ef;--bhs-paper:#f4f6f3;--bhs-line:#dce3df;--bhs-muted:#607078}.bhs-page{background:#fff;color:var(--bhs-ink);overflow:hidden}.bhs-page *{box-sizing:border-box}.bhs-page h1,.bhs-page h2,.bhs-page h3{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}.bhs-hero{position:relative;padding:132px 0 70px;background:radial-gradient(circle at 82% 7%,rgba(62,194,166,.18),transparent 27%),linear-gradient(145deg,#06151f 0%,#092632 56%,#0d3940 100%);color:#fff}.bhs-hero:after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(to bottom,#000,transparent 88%)}.bhs-hero .container{position:relative;z-index:1}.bhs-breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:58px;font-size:11px;color:#92a8b0}.bhs-breadcrumb a{color:#b9c8cd}.bhs-breadcrumb strong{color:#fff;font-weight:650}.bhs-hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);gap:clamp(60px,8vw,110px);align-items:center}.bhs-kicker,.bhs-section-heading>div>span,.bhs-architecture-copy>span,.bhs-small-label,.bhs-faq-heading>span,.bhs-closing span,.bhs-difference-shell>div:first-child>span{display:inline-block;font-size:10px;font-weight:850;letter-spacing:.18em;color:var(--bhs-mint);text-transform:uppercase}.bhs-hero h1{max-width:750px;margin:20px 0 28px;font-size:clamp(52px,6.3vw,88px);line-height:.96;letter-spacing:-.065em;color:#fff}.bhs-hero h1 em{font-style:normal;color:var(--bhs-mint)}.bhs-hero-copy>p{max-width:680px;margin:0;color:#b8c9ce;font-size:clamp(17px,1.6vw,20px);line-height:1.72}.bhs-actions{display:flex;align-items:center;gap:28px;margin:38px 0 34px}.bhs-button{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-height:58px;padding:0 10px 0 22px;border-radius:14px;text-decoration:none;font-size:13px;font-weight:850;transition:.25s}.bhs-button i{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;font-style:normal}.bhs-button-primary{background:var(--bhs-mint);color:#05252b}.bhs-button-primary i{background:#07222b;color:#fff}.bhs-button:hover{transform:translateY(-2px)}.bhs-text-link{display:inline-flex;gap:10px;align-items:center;color:#d6e2e5;font-size:13px;font-weight:750}.bhs-text-link i{font-style:normal;color:var(--bhs-mint)}.bhs-proof{display:flex;gap:18px 28px;flex-wrap:wrap}.bhs-proof span{position:relative;padding-left:14px;color:#8fa7af;font-size:11px;font-weight:720}.bhs-proof span:before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--bhs-mint)}.bhs-system{padding:28px;border:1px solid rgba(255,255,255,.15);border-radius:24px;background:rgba(4,18,27,.68);box-shadow:0 32px 80px rgba(0,0,0,.24);backdrop-filter:blur(16px)}.bhs-system-head{display:flex;justify-content:space-between;gap:20px;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.1);font-size:9px;letter-spacing:.14em;color:#8aa1aa}.bhs-system-head b{color:var(--bhs-mint)}.bhs-system-focus{padding:26px 0 20px}.bhs-system-focus small{display:block;margin-bottom:8px;color:#6f8993;font-size:10px}.bhs-system-focus strong{font-size:25px;line-height:1.18;letter-spacing:-.035em}.bhs-system ol{list-style:none;margin:0;padding:0}.bhs-system li{display:grid;grid-template-columns:36px 1fr;gap:14px;padding:17px 0;border-top:1px solid rgba(255,255,255,.09)}.bhs-system li>b{font-size:10px;color:var(--bhs-mint)}.bhs-system li div{display:grid;gap:4px}.bhs-system li strong{font-size:13px}.bhs-system li span{color:#8299a1;font-size:10.5px;line-height:1.55}.bhs-system-foot{display:flex;align-items:center;gap:10px;padding-top:20px;color:#78919a;font-size:8px;letter-spacing:.11em}.bhs-system-foot i{height:1px;flex:1;background:rgba(255,255,255,.13)}.bhs-index{border-bottom:1px solid var(--bhs-line);background:#fff}.bhs-index .container{display:grid;grid-template-columns:1fr repeat(4,auto);gap:35px;align-items:center;min-height:82px}.bhs-index .container>span{max-width:490px;color:#4e6067;font-size:12px}.bhs-index div{display:flex;align-items:center;gap:9px;color:#6b7b81;font-size:10px;letter-spacing:.06em}.bhs-index div b{color:#14272f}.bhs-section{padding:clamp(86px,10vw,138px) 0}.bhs-intro-grid{display:grid;grid-template-columns:100px minmax(0,1.05fr) minmax(320px,.75fr);gap:clamp(38px,6vw,80px);align-items:start}.bhs-section-mark{display:flex;align-items:center;gap:13px;padding-top:10px}.bhs-section-mark span{font-size:11px;font-weight:850}.bhs-section-mark small{font-size:8px;letter-spacing:.16em;color:#78878c}.bhs-intro h2,.bhs-section-heading h2,.bhs-architecture h2,.bhs-measurement h2,.bhs-difference h2,.bhs-faq h2,.bhs-closing h2{margin:0;font-size:clamp(40px,5.3vw,68px);line-height:1.02;letter-spacing:-.055em}.bhs-intro-copy{padding-top:8px}.bhs-intro-copy p,.bhs-section-heading>p,.bhs-architecture-copy>p,.bhs-measurement-main>p,.bhs-difference-copy p,.bhs-faq-heading>p,.bhs-closing p{margin:0 0 20px;color:var(--bhs-muted);font-size:16px;line-height:1.78}.bhs-audience{background:var(--bhs-paper)}.bhs-section-heading{display:grid;grid-template-columns:1.15fr .55fr;gap:70px;align-items:end;margin-bottom:60px}.bhs-section-heading h2{margin-top:18px}.bhs-section-heading>p{max-width:480px;margin:0}.bhs-audience-ledger{border-top:1px solid #bfc9c4}.bhs-audience-ledger article{display:grid;grid-template-columns:70px minmax(230px,.8fr) minmax(330px,1.2fr) 170px;gap:28px;align-items:center;padding:31px 0;border-bottom:1px solid #cfd7d3}.bhs-audience-ledger article>span{font-size:11px;font-weight:850}.bhs-audience-ledger h3{margin:0;font-size:25px;letter-spacing:-.035em}.bhs-audience-ledger p{margin:0;color:#617178;font-size:14px;line-height:1.65}.bhs-audience-ledger small{justify-self:end;font-size:8px;letter-spacing:.13em;color:#63746f}.bhs-architecture{background:#fff}.bhs-architecture-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(60px,9vw,130px);align-items:center}.bhs-architecture-copy h2{margin:20px 0 28px}.bhs-architecture-copy blockquote{margin:38px 0 0;padding:0 0 0 22px;border-left:2px solid #1ba88f;color:#17343c;font-size:19px;line-height:1.55;font-weight:650}.bhs-map{padding:34px;border-radius:28px;background:#0b222d;color:#fff;box-shadow:0 30px 70px rgba(11,34,45,.16)}.bhs-map-root,.bhs-map-level>div{padding:22px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.035)}.bhs-map small{display:block;margin-bottom:8px;color:#6fe4c2;font-size:8px;letter-spacing:.15em}.bhs-map strong{font-size:18px}.bhs-map-line{width:1px;height:34px;margin:auto;background:rgba(255,255,255,.2)}.bhs-map-line.is-short{height:28px}.bhs-map-level{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.bhs-map-level strong{font-size:13px}.bhs-map-result{display:flex;align-items:center;gap:12px;padding:16px;border-radius:13px;background:var(--bhs-mint);color:#08242b;font-size:10px;font-weight:850;letter-spacing:.05em}.bhs-map-result 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var(--bhs-line)}.bhs-metrics div{padding:22px 0;border-bottom:1px solid var(--bhs-line)}.bhs-metrics span{display:block;margin-bottom:6px;color:#118876;font-size:8px;font-weight:850;letter-spacing:.14em}.bhs-metrics strong{font-size:14px;line-height:1.5}.bhs-difference{padding-top:0}.bhs-difference-shell{display:grid;grid-template-columns:1.2fr .65fr;gap:70px;padding:clamp(38px,6vw,72px);border-radius:30px;background:#e7f7f1}.bhs-difference h2{margin-top:18px;font-size:clamp(36px,4.7vw,60px)}.bhs-difference-copy{align-self:end}.bhs-faq{background:var(--bhs-paper)}.bhs-faq-grid{display:grid;grid-template-columns:.65fr 1.1fr;gap:clamp(50px,8vw,100px)}.bhs-faq-heading h2{margin:18px 0 25px;font-size:clamp(38px,4.8vw,60px)}.bhs-faq-list{border-top:1px solid #bfc9c4}.bhs-faq-list details{border-bottom:1px solid #c9d2ce}.bhs-faq-list summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:25px 0;cursor:pointer;font-size:16px;font-weight:780}.bhs-faq-list summary::-webkit-details-marker{display:none}.bhs-faq-list summary i{font-style:normal;font-size:22px;font-weight:400;color:#138b78;transition:.2s}.bhs-faq-list details[open] summary i{transform:rotate(45deg)}.bhs-faq-list details>div{padding:0 50px 25px 0;color:#617178;font-size:14px;line-height:1.75}.bhs-closing{padding:clamp(80px,10vw,130px) 0;background:linear-gradient(145deg,#0b2631,#0a3b3f);color:#fff}.bhs-closing-grid{display:grid;grid-template-columns:1.05fr .55fr;gap:clamp(55px,9vw,120px);align-items:end}.bhs-closing h2{margin-top:20px;color:#fff}.bhs-closing p{color:#b1c5ca}.bhs-button-light{margin-top:20px;background:#fff;color:#092831}.bhs-button-light i{background:#092831;color:var(--bhs-mint)}
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@media(max-width:720px){.bhs-hero{padding:112px 0 55px}.bhs-breadcrumb{margin-bottom:38px}.bhs-hero h1{font-size:clamp(44px,13vw,63px)}.bhs-actions{align-items:stretch;flex-direction:column;gap:18px}.bhs-button{width:100%}.bhs-text-link{padding-left:4px}.bhs-proof{gap:12px 18px}.bhs-system{padding:20px}.bhs-system-focus strong{font-size:21px}.bhs-index .container{display:block;padding:20px 0}.bhs-index div{display:none}.bhs-section{padding:82px 0}.bhs-intro-grid,.bhs-measurement-grid{display:block}.bhs-section-mark{margin-bottom:28px}.bhs-intro-copy,.bhs-metrics{margin-top:30px}.bhs-intro h2,.bhs-section-heading h2,.bhs-architecture h2,.bhs-measurement h2,.bhs-difference h2,.bhs-faq h2,.bhs-closing h2{font-size:clamp(37px,11vw,50px)}.bhs-audience-ledger article{display:block;padding:27px 0}.bhs-audience-ledger article>span{display:block;margin-bottom:15px}.bhs-audience-ledger h3{font-size:23px}.bhs-audience-ledger p{margin:12px 0}.bhs-map{padding:20px;border-radius:20px}.bhs-map-level{grid-template-columns:1fr}.bhs-map-line{height:20px}.bhs-map-result{flex-wrap:wrap}.bhs-map-result i{display:none}.bhs-method-steps{grid-template-columns:1fr}.bhs-method-steps article,.bhs-method-steps article:nth-child(even){padding:28px 0;border-right:0}.bhs-difference-shell{padding:32px 24px;border-radius:22px}.bhs-faq-list details>div{padding-right:0}.bhs-closing-grid{gap:35px}}

/* Sprint 1 content-depth components */
.bhs-editorial{background:#fff}.bhs-editorial-alt{background:#f4f7f5}.bhs-reading-grid{display:grid;grid-template-columns:minmax(180px,.7fr) minmax(0,2.2fr);gap:clamp(42px,7vw,110px);align-items:start}.bhs-reading-aside{position:sticky;top:118px;border-top:1px solid rgba(13,48,39,.2);padding-top:20px}.bhs-reading-aside>span,.bhs-ai-grid>div:first-child>span{display:block;font-size:11px;letter-spacing:.16em;font-weight:800;color:#597167;margin-bottom:18px}.bhs-reading-aside p{font-size:15px;line-height:1.65;color:#53665f;margin:0}.bhs-prose{max-width:860px}.bhs-prose h2{font-size:clamp(34px,4vw,58px);line-height:1.04;letter-spacing:-.045em;color:#102e26;margin:0 0 32px}.bhs-prose h3{font-size:clamp(21px,2vw,29px);line-height:1.22;letter-spacing:-.025em;color:#173c32;margin:44px 0 14px}.bhs-prose p{font-size:18px;line-height:1.82;color:#41574f;margin:0 0 22px}.bhs-insight{margin:44px 0 0;padding:30px 34px;border-left:3px solid #23d68d;background:#eaf7f1}.bhs-insight span{font-size:11px;letter-spacing:.16em;font-weight:900;color:#18714f}.bhs-insight p{margin:12px 0 0;font-size:17px;line-height:1.68;color:#183e33}.bhs-checklist{margin:48px 0 0;padding:34px;border:1px solid rgba(15,62,49,.14);background:#fff}.bhs-checklist h3{margin:0 0 22px}.bhs-checklist ul{list-style:none;margin:0;padding:0;display:grid;gap:14px}.bhs-checklist li{position:relative;padding-left:28px;font-size:17px;line-height:1.55;color:#40564e}.bhs-checklist li:before{content:'✓';position:absolute;left:0;color:#168a5c;font-weight:900}.bhs-method-steps article p{max-width:860px}.bhs-ai{background:#0d3027;color:#fff}.bhs-ai-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(42px,8vw,120px)}.bhs-ai-grid h2{font-size:clamp(36px,5vw,64px);line-height:1.02;letter-spacing:-.05em;margin:0;color:#fff}.bhs-ai-copy p{font-size:17px;line-height:1.75;color:rgba(255,255,255,.72);margin:0 0 20px}.bhs-ai-principles{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18)}.bhs-ai-principles div{padding:28px 24px;border-right:1px solid rgba(255,255,255,.14);display:flex;gap:16px;align-items:flex-start}.bhs-ai-principles div:last-child{border-right:0}.bhs-ai-principles b{font-size:11px;color:#37e39d;letter-spacing:.12em}.bhs-ai-principles span{font-size:15px;line-height:1.45;color:#fff}.bhs-errors{background:#fff}.bhs-error-list{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(13,48,39,.18)}.bhs-error-list article{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:34px 24px;border-bottom:1px solid rgba(13,48,39,.14)}.bhs-error-list article:nth-child(odd){border-right:1px solid rgba(13,48,39,.14)}.bhs-error-list b{font-size:12px;letter-spacing:.12em;color:#168a5c}.bhs-error-list h3{font-size:21px;line-height:1.25;margin:0 0 10px;color:#173c32}.bhs-error-list p{font-size:15px;line-height:1.65;margin:0;color:#52665f}.bhs-insight-section{background:#eaf7f1}.bhs-insight-card{max-width:1100px;margin:0 auto;padding:clamp(36px,6vw,72px);background:#10372d;color:#fff}.bhs-insight-card>span{font-size:11px;letter-spacing:.18em;font-weight:900;color:#45e7a4}.bhs-insight-card blockquote{font-size:clamp(28px,4vw,50px);line-height:1.16;letter-spacing:-.035em;margin:24px 0 28px}.bhs-insight-card p{max-width:760px;font-size:17px;line-height:1.7;color:rgba(255,255,255,.72);margin:0}.bhs-faq-list details div{line-height:1.75}.bhs-section{scroll-margin-top:110px}
@media(max-width:900px){.bhs-reading-grid,.bhs-ai-grid{grid-template-columns:1fr}.bhs-reading-aside{position:static}.bhs-ai-principles{grid-template-columns:1fr 1fr}.bhs-error-list{grid-template-columns:1fr}.bhs-error-list article:nth-child(odd){border-right:0}.bhs-prose p{font-size:17px}}
@media(max-width:600px){.bhs-ai-principles{grid-template-columns:1fr}.bhs-ai-principles div{border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}.bhs-error-list article{grid-template-columns:40px 1fr;padding:26px 8px}.bhs-insight{padding:24px}.bhs-prose h3{margin-top:34px}}