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@media(min-width:1500px){.wrap{max-width:1400px}.hero{gap:70px}h1{font-size:68px}}
@media(max-width:1000px){.wrap{padding-left:28px;padding-right:28px}.site-header nav{gap:18px}.hero{gap:28px}h1{font-size:46px}.hero .actions{gap:18px}.hero .text-link{font-size:14px}.kit-layout{gap:35px}.pair-diagram{padding:20px}.pair-unit{padding:14px}.unit-state{margin-left:0}.newsletter-section,.faq-layout,.milestone-section{gap:40px}.investor-intro{gap:40px}}
@media(max-width:760px){.wrap{padding-left:22px;padding-right:22px}.site-header{flex-wrap:wrap;justify-content:center;gap:20px;padding-top:22px;padding-bottom:16px}.site-header nav{justify-content:center;width:100%;gap:18px;font-size:12px;flex-wrap:wrap}.site-header nav .small{font-size:12px;min-height:40px;padding:10px 12px;gap:8px}.site-header .bc-brand{--bc-logo-size:40px}.hero{grid-template-columns:1fr;gap:30px;padding-top:28px;padding-bottom:36px}h1{font-size:clamp(40px,10vw,60px);letter-spacing:-1.8px}.hero-copy .eyebrow{font-size:11px;margin-bottom:20px}.hero-copy .lead{font-size:17px;max-width:560px}.hero-image{max-width:550px;width:100%;justify-self:center}.hero-image img{aspect-ratio:1.1}.hero-image figcaption{font-size:11px;padding:40px 18px 18px}.intro-strip{flex-direction:column;gap:6px;font-size:12px}.section{padding-top:56px;padding-bottom:56px}.section-heading{grid-template-columns:1fr;gap:20px;margin-bottom:32px}.section-heading .eyebrow{margin-bottom:0}.section-heading>p:last-child{font-size:15px}.idea-grid,.route-steps,.thesis-points,.model-grid{grid-template-columns:1fr;gap:28px}.feature-number{margin-bottom:16px}.idea-grid article>p{margin-bottom:12px}.kit-layout{grid-template-columns:1fr;gap:30px;padding-top:56px;padding-bottom:56px}.pair-diagram{padding:20px}.pair-unit{padding:18px}.unit-state{margin-left:auto}.tier-line{flex-direction:column;align-items:flex-start;gap:22px}.tier-line .button{width:100%}.newsletter-section{grid-template-columns:1fr;gap:22px;padding-top:34px;padding-bottom:34px;border-radius:0}.newsletter-section h2{font-size:38px}.faq-layout,.milestone-section{grid-template-columns:1fr;gap:24px}.investor-link{flex-direction:column;align-items:flex-start;gap:20px;padding-top:32px;padding-bottom:32px}.site-footer{flex-direction:column;gap:22px}.site-footer>div:last-child{gap:20px}.investor-hero{padding-top:36px;padding-bottom:44px}.investor-hero h1{font-size:clamp(38px,10vw,65px);letter-spacing:-1.6px}.investor-intro{grid-template-columns:1fr;gap:28px}.evidence-row{grid-template-columns:1fr;gap:12px;padding:22px 0}.evidence-header{display:none}.evidence-row>p:nth-child(2)::before{content:'Prototype evidence: ';font-weight:700;color:var(--bc-ink)}.evidence-row>p:nth-child(3)::before{content:'Next validation: ';font-weight:700;color:var(--bc-ink)}dialog{padding:30px 22px}.form-columns{gap:12px}.privacy-content h1{font-size:42px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Newsletter arrangements use the shared BatCat master tokens. */
.newsletter-topics {min-width:0;margin:var(--bc-space-5) 0;padding:var(--bc-space-4);border:1px solid var(--bc-line);border-radius:var(--bc-radius);}
.newsletter-topics legend {padding:0 var(--bc-space-2);font-size:14px;font-weight:700;}
.newsletter-topics>p.small-note {margin:0 0 var(--bc-space-4);}
.newsletter-topics .topic-choice {padding:var(--bc-space-3);border:1px solid var(--bc-line);border-radius:6px;background:var(--bc-black);cursor:pointer;}
.newsletter-topics .topic-choice:has(input:checked) {border-color:var(--bc-blue);background:var(--bc-blue-tint);}
.newsletter-topics .topic-choice:focus-within {outline:2px solid var(--bc-link);outline-offset:3px;}
.topic-choice span {min-width:0;}
.topic-choice b,.topic-choice small {display:block;}
.topic-choice small {color:var(--bc-muted);font-size:12px;line-height:1.5;margin-top:var(--bc-space-1);}
.newsletter-topic-summary {margin:var(--bc-space-4) 0 0;font-size:12px;color:var(--bc-muted);overflow-wrap:anywhere;}
/* Reviewed development teaser: arrangement uses the shared master tokens. */
.updates-teaser {display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:var(--bc-space-6);align-items:center;padding-top:var(--bc-space-6);padding-bottom:var(--bc-space-6);border-bottom:1px solid var(--bc-line);background:var(--bc-panel);}
.updates-teaser .eyebrow {margin-bottom:var(--bc-space-3);}
.updates-teaser h2 {font-size:clamp(28px,3vw,36px);margin-bottom:var(--bc-space-4);}
.updates-teaser>div>p:not(.eyebrow) {max-width:650px;margin-bottom:0;font-size:14px;color:var(--bc-muted);}
.updates-teaser-actions {display:grid;justify-items:start;gap:var(--bc-space-4);}
.updates-teaser-actions .text-link {font-size:14px;}
@media(max-width:760px) {.updates-teaser {grid-template-columns:minmax(0,1fr);}.updates-teaser-actions {justify-items:stretch;}.updates-teaser-actions .button {width:100%;}}
/* Audience routes derived from the reviewed product-site benchmark. */
.visitor-paths{padding-top:40px;padding-bottom:40px;border-bottom:1px solid var(--bc-line)}
.visitor-paths-heading .eyebrow{margin-bottom:12px}.visitor-paths-heading h2{font-size:28px;letter-spacing:-.7px;margin-bottom:24px}
.visitor-paths-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.visitor-paths-grid article{min-width:0;border-left:2px solid var(--bc-emerald);padding-left:20px}
.visitor-path-label{display:block;font-size:12px;color:var(--bc-green-ink);font-weight:650;margin-bottom:12px}
.visitor-paths-grid h3{font-size:21px}.visitor-paths-grid p{font-size:14px;color:var(--bc-muted);margin-bottom:12px}
.visitor-paths-grid .text-link{font-size:14px;min-height:44px;gap:12px;max-width:100%;overflow-wrap:anywhere}
@media(max-width:900px){.visitor-paths-grid{grid-template-columns:minmax(0,1fr);gap:24px}}
@media(max-width:760px){.visitor-paths{padding-top:32px;padding-bottom:32px}.visitor-paths-heading h2{font-size:25px}}