/* Shared responsive polish, loaded after the established S4A styles. */
.arrow-button{display:inline-flex;align-items:center;justify-content:center;width:44px;min-width:44px;height:44px;border:1px solid #d2dce5;border-radius:50%;background:#f3f5f7;color:var(--ink);font-size:24px;line-height:1;transition:background .2s,color .2s,transform .2s}
.arrow-button:hover{background:var(--ink);color:#fff;transform:translate(1px,-1px)}
a.hero-insight:hover,a.chart-footer:hover{border-color:var(--gold)}
a.hero-insight .insight-icon{flex-shrink:0}
.service{grid-template-columns:minmax(0,1fr) 44px;gap:22px}
.service-number{display:none}
.service>div{min-width:0;grid-column:1}
.service-icon{display:inline-flex;grid-column:2;align-self:start}
.service h3 a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.deliverable-mark.arrow-button{margin-bottom:20px}
.contact-note>.arrow-button{flex-shrink:0;color:var(--ink)}
.text-link{min-height:44px;display:inline-flex;align-items:center}
.header nav .nav-cta{min-height:44px}
.header nav{top:100%}
.header .nav{gap:24px}
.header .brand{flex-shrink:0}
.hero-copy,.hero-visual,.perspective-copy,.chart-card,.contact-grid>*{min-width:0}

@media(max-width:1050px){
  .header .nav{height:100px}
  .header .brand-logo{width:176px;max-width:55vw}
  .menu-toggle{display:flex;align-items:center;justify-content:center;gap:12px;min-height:44px;min-width:88px;padding:9px 14px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14px}
  .menu-toggle>span{font-size:21px;line-height:1}
  .menu-toggle[aria-expanded=true]{background:var(--ink);color:#fff}
  .header nav{display:none;position:absolute;top:100%;left:0;right:0;padding:12px max(24px,calc((100vw - 1220px)/2));background:#fff;border-bottom:1px solid var(--line);box-shadow:0 16px 24px #142f4c12;max-height:calc(100dvh - 100px);overflow-y:auto;overscroll-behavior:contain}
  .header nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:0}
  .header nav>a{display:flex;align-items:center;min-height:48px;padding:12px 8px;font-size:15px;border-bottom:1px solid #edf1f5}
  .header nav .nav-cta{margin-top:10px;padding:13px 16px;justify-content:space-between}
  html{scroll-padding-top:116px}
  .hero-grid{gap:30px}
  h1{font-size:clamp(43px,5.5vw,58px)}
  .service-art figcaption>span{font-size:13px}
}

@media(max-width:800px){
  .wrap{width:calc(100% - 40px)}
  .hero{padding:34px 0 40px}
  .hero-grid{gap:28px}
  .hero-copy .eyebrow{font-size:10px;letter-spacing:1.3px;gap:8px;margin-bottom:20px}
  h1{font-size:clamp(36px,10.4vw,58px);letter-spacing:-1.5px;line-height:1.09;margin-bottom:22px}
  .brand-tagline{font-size:20px;line-height:1.5}
  .hero-description{font-size:16px;line-height:1.75;margin-bottom:24px}
  .hero-actions{gap:8px 20px}
  .button{font-size:14px;min-height:52px;line-height:1.5;padding:14px 18px;gap:16px}
  .text-link{font-size:14px}
  .hero-detail{gap:8px 14px;font-size:11px;margin-top:20px}
  .hero-detail span+span:before{margin-right:14px}
  .hero-visual{padding-bottom:0}
  .hero-motion{border-radius:3px 36px 0 0;aspect-ratio:3/2}
  .hero-insight{position:relative;left:auto;right:auto;bottom:auto;margin:0;box-shadow:none;padding:20px 18px;gap:14px}
  .hero-insight strong{font-size:22px}
  .hero-insight div>span{font-size:13px;line-height:1.6}
  .insight-icon{width:44px;min-width:44px;height:44px}
  .hero-visual .image-label{display:none}
  .motion-toggle{top:12px;right:12px;min-height:44px;font-size:12px;padding:9px 12px}
  .principle-strip{padding:22px 0}
  .principle-strip>.wrap{gap:10px 14px;justify-content:flex-start}
  .strip-label{font-size:10px;text-align:left;margin-bottom:5px}
  .principle-strip p{font-size:13px}
  .strip-divider{height:14px}
  .section,.perspective,.approach,.contact{padding-top:56px;padding-bottom:56px}
  .eyebrow{font-size:10px;letter-spacing:1.4px}
  .section-intro h2,.perspective h2,.approach h2,.about-copy h2{font-size:clamp(29px,7.8vw,38px);line-height:1.2}
  .section-intro>div>p,.perspective-copy>p:not(.eyebrow),.approach-top>p,.about-copy>p:not(.eyebrow),.contact-grid>div>p:not(.eyebrow){font-size:15px;line-height:1.8}
  .service-list{border:0;gap:20px}
  .service{border:1px solid var(--line);padding:22px;gap:20px 14px}
  .service-art{margin:0;overflow:hidden}
  .service-art>figcaption{padding:18px}
  .service-art figcaption strong{font-size:23px}
  .service-art figcaption>span{font-size:13px;line-height:1.7}
  .service h3{font-size:26px;line-height:1.2}
  .service p{font-size:15px;line-height:1.8;margin-bottom:14px}
  .service-tags{gap:2px 14px}
  .service-tags .service-topic{font-size:14px;min-height:44px;margin-right:0;gap:10px}
  .service-tags .service-topic>span{font-size:18px}
  .finance-tabs{gap:0;justify-content:space-between;margin-top:25px}
  .finance-tabs button{font-size:13px;min-height:48px;padding:12px 4px;white-space:normal;line-height:1.4}
  .finance-answer{min-height:0;padding:22px 0 10px}
  .finance-answer h3{font-size:17px;line-height:1.5}
  .finance-answer p{font-size:15px;line-height:1.75}
  .chart-card{padding:24px 20px}
  .chart-heading{flex-wrap:wrap;gap:12px}
  .chart-heading .eyebrow{font-size:10px}
  .chart-heading h3{font-size:27px}
  .chart-badge{font-size:9px;padding:6px 9px}
  .chart-legend{font-size:12px;gap:12px;flex-wrap:wrap;margin-top:22px}
  .axis-labels{font-size:13px}
  .chart-animation-controls{flex-wrap:wrap;gap:12px;margin-top:8px}
  .chart-animation-controls p{font-size:13px}
  .chart-animation-controls strong{font-size:28px;margin-left:8px;min-width:0}
  .chart-animation-controls button{min-height:44px;font-size:13px;padding:10px 12px}
  .chart-footer{min-height:60px;padding-top:18px}
  .chart-footer-icon{width:44px;min-width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;color:var(--ink)}
  .chart-footer p,.chart-note{font-size:12px;line-height:1.7}
  .steps article>span{font-size:11px}
  .steps p{font-size:15px;line-height:1.8}
  .about-visual:has(.original-about-art){padding-bottom:0}
  .about-caption{position:static;gap:18px;padding:20px;right:auto}
  .about-caption>span img{width:128px;height:auto}
  .about-caption p{padding-left:18px;font-size:13px}
  .founder strong{font-size:15px}
  .founder div>span{font-size:13px}
  .contact h2{font-size:clamp(32px,8.8vw,44px);line-height:1.18}
  .contact-note{gap:14px;align-items:center}
  .contact-note p{font-size:14px;line-height:1.75}
  .contact form{padding:24px 20px}
  .contact form h3{font-size:27px;line-height:1.2}
  .form-row{grid-template-columns:1fr;gap:0}
  label{font-size:14px}
  input,select,textarea{font-size:16px;min-height:48px;padding:12px;max-width:100%}
  .form-intro{font-size:14px;line-height:1.75}
  .field-note,.form-privacy{font-size:12px;line-height:1.75}
  .inquiry-new{min-height:44px;font-size:14px}
  .footer-top{align-items:flex-start;gap:22px}
  .footer-top .brand-logo{width:190px}
  .footer-top p{font-size:20px}
  .footer-top>a:last-child{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 14px;border:1px solid var(--line);font-size:13px;margin-left:0}
  .footer-bottom{font-size:12px;align-items:flex-start;gap:8px 20px}
  .footer-bottom button{min-height:44px;font-size:12px}
  dialog{padding:24px;max-height:calc(100dvh - 40px);overflow:auto}
  dialog p{font-size:14px;line-height:1.75}
  .dialog-heading button{min-width:44px;min-height:44px}

  .service-page .breadcrumbs{font-size:12px;padding:22px 0 30px;gap:8px}
  .breadcrumbs a{display:inline-flex;align-items:center;min-height:44px}
  .service-page .service-hero h1{font-size:clamp(34px,9vw,48px);line-height:1.12;letter-spacing:-1px}
  .service-hero .eyebrow,.service-content .eyebrow{font-size:10px}
  .service-name{font-size:17px}
  .service-lede{font-size:16px;line-height:1.8}
  .service-benefit-figure>figcaption{padding:22px}
  .service-benefit-figure figcaption h2{font-size:27px}
  .service-benefit-figure figcaption p{font-size:15px}
  .service-benefit-figure figcaption small{font-size:11px}
  .service-body{gap:40px;padding-top:48px;padding-bottom:48px}
  .service-content h2{font-size:clamp(28px,7.5vw,35px)}
  .service-overview>p:not(.eyebrow),.scope-list p,.deliverable-grid p,.engagement-box>p,.service-faq details>p,.service-next p:not(.eyebrow){font-size:15px;line-height:1.8}
  .service-example>span,.scope-note{font-size:12px}
  .service-content>.service-questions{padding:24px 20px}
  .service-questions li{font-size:15px;line-height:1.7}
  .scope-list h3{font-size:20px}
  .scope-number{font-size:13px}
  .deliverable-grid>article{grid-template-columns:minmax(0,1fr) 44px;padding:22px;gap:14px}
  .deliverable-grid .deliverable-mark{grid-column:2;grid-row:1;margin:0}
  .deliverable-grid h3{grid-column:1;grid-row:1;align-self:center;font-size:24px}
  .deliverable-grid>article>p{grid-column:1/-1}
  .service-faq summary{font-size:16px;gap:16px}
  .expertise-rail{grid-template-columns:1fr}
  .expertise-rail>a{font-size:15px;min-height:48px}
  .expertise-rail>a.rail-home{font-size:14px}
  .service-next h2{font-size:32px}
  .related-grid>a{padding:22px 12px}
  .related-grid>a>span{font-size:12px}
  .related-grid i{min-width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%}
}

@media(max-width:480px){
  .wrap{width:calc(100% - 32px)}
  .header .nav{height:90px}
  .header .brand-logo{width:160px}
  .header nav{max-height:calc(100dvh - 90px);padding:10px 16px 18px}
  html{scroll-padding-top:106px}
  .hero-actions{align-items:stretch;flex-direction:column}
  .hero-actions>.button{width:100%}
  .hero-detail{font-size:11px;gap:6px 12px}
  .hero-detail span+span:before{margin-right:12px}
  .hero-insight strong{font-size:21px}
  .hero-insight div>span{font-size:12px}
  .principle-strip>.wrap{display:grid;grid-template-columns:1fr;gap:8px}
  .strip-divider{display:none}
  .principle-strip p{font-size:14px}
  .service{padding:18px;gap:18px 12px}
  .service h3{font-size:25px}
  .service-art>figcaption{padding:16px}
  .service-art figcaption strong{font-size:22px}
  .chart-card{padding:22px 16px}
  .finance-tabs button{font-size:12px}
  .footer-top{flex-direction:column}
  .footer-top p{order:0}
  .about-caption>span img{width:112px}
  .about-caption p{font-size:12px}
  .service-hero .button,.service-next .button{width:100%;justify-content:space-between}
}

@media(prefers-reduced-motion:reduce){.arrow-button{transition:none}.arrow-button:hover{transform:none}}

/* Stable mobile anchor navigation and form focus in WebKit. */
@media (max-width:1050px), (pointer:coarse){
  html{scroll-behavior:auto;scroll-padding-top:16px}
  .header{position:relative;top:auto;background:#fff;-webkit-backdrop-filter:none;backdrop-filter:none}
}