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.access-card-top h3{margin:0;font:normal 22px/1.3 Georgia,serif;letter-spacing:-.025em}
.access-card-top .num{font:11px/1.4 'Courier New',monospace;white-space:nowrap;color:#555}
.billing-chip{margin-left:auto;padding:5px 8px;border:1px solid #d4d4d4;border-radius:3px;background:#fff;color:#444;font:400 12px/1.4 'Courier New',monospace;white-space:nowrap}
.access-description{margin:22px 0 18px;font:14px/1.65 Georgia,serif;color:#333}
.access-features{list-style:none;padding:0;margin:0 0 24px;font:12px/1.6 Georgia,serif;color:#444}
.access-features li{padding:8px 0;border-bottom:1px solid #eee}
.access-features li:last-child{border-bottom:0}
.access-purchase{display:flex;align-items:flex-end;justify-content:flex-end;gap:20px;border-top:1px solid #111;padding-top:18px;margin-top:auto}
.access-price>span{display:block;font:10px/1.4 'Courier New',monospace;color:#555;margin-bottom:7px}
.access-price strong{display:block;font:normal 22px/1.2 Georgia,serif;white-space:nowrap}
.subscription-pricing{margin:28px 0 24px;color:#111}
.subscription-pricing p{margin:0}
.subscription-pricing .subscription-rate{display:flex;align-items:baseline;flex-wrap:wrap;gap:12px;font:normal 48px/1.1 Georgia,serif;letter-spacing:-.035em;font-variant-numeric:tabular-nums}
.subscription-rate span{font:12px/1.5 'Courier New',monospace;white-space:nowrap;color:#555}
.subscription-rate span{letter-spacing:0}
.subscription-pricing .subscription-summary{margin-top:16px;max-width:none;font:14px/1.65 Georgia,serif;color:#444}
.subscription-details{margin:0 0 28px;border-top:1px solid #ddd}
.subscription-details>div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:16px;align-items:baseline;padding:13px 0;border-bottom:1px solid #eee}
.subscription-details dt{font:11px/1.5 'Courier New',monospace;color:#666}
.subscription-details dd{margin:0;font:14px/1.5 Georgia,serif;color:#111;text-align:right}
.subscription-purchase{align-items:center;justify-content:flex-end;flex-wrap:wrap}
.subscription-cancellation{flex:1 0 auto;max-width:none;margin:0;font:11px/1.6 'Courier New',monospace;color:#666;white-space:nowrap}
.subscription-purchase .button{flex-shrink:0}
.access-purchase .button{display:inline-flex;align-items:center;gap:8px;font-weight:400;white-space:nowrap;transition:background-color 180ms ease,border-color 180ms ease}
.access-purchase .button:focus-visible{outline:2px solid #111;outline-offset:4px}
@media(hover:hover){.access-purchase .button:hover{background:#303030;border-color:#303030}.access-purchase .button.ghost:hover{background:#f2f2f2;border-color:#111}}
@media(max-width:960px){.access-grid{grid-template-columns:1fr}}
@media(max-width:520px){.access-card{padding:23px 20px 20px}.access-card-top h3{font-size:19px}.access-card-top .num{font-size:10px}.access-purchase{align-items:flex-end;flex-direction:column;gap:18px}}
@media(max-width:520px){.subscription-pricing .subscription-rate{font-size:42px}.subscription-details>div{grid-template-columns:90px minmax(0,1fr);gap:12px}.subscription-cancellation{align-self:stretch;max-width:none}}
@media(prefers-reduced-motion:reduce){.access-purchase .button{transition:none}}

.access-purchase .button{flex:0 0 auto;width:var(--access-button-width,auto);max-width:100%;justify-content:center}

/* Subtle contrast for the subscription offer. */
#factor-subscription{background:#fafafa;scroll-margin-top:24px}

/* Native disclosures keep the data and access FAQ usable without JavaScript. */
.faq-section .lead{margin-bottom:0}
.faq-list{max-width:840px;min-width:0;border-top:1px solid #111}
.faq-item{border-bottom:1px solid #ddd}
.faq-item:last-child{border-bottom-color:#111}
.faq-item>summary{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:21px 0;list-style:none;cursor:pointer;font:400 18px/1.45 Georgia,serif;color:#111}
.faq-item>summary::-webkit-details-marker{display:none}
.faq-item>summary::marker{content:''}
.faq-item>summary>svg{display:block;flex:0 0 18px;width:18px;height:18px}
.faq-item[open] .faq-icon-vertical{visibility:hidden}
.faq-answer{padding:0 42px 23px 0}
.faq-answer p{margin:0;font:400 16px/1.7 Georgia,serif;color:#444}
.faq-section .lead,.faq-answer p{text-align:justify;text-align-last:left;hyphens:auto}
.faq-answer code{font:400 .88em 'Courier New',monospace;color:#111}
.faq-answer a{text-decoration-thickness:1px}
.faq-item>summary:focus-visible,.faq-section a:focus-visible{outline:2px solid #111;outline-offset:5px}
@media(hover:hover){.faq-item>summary:hover>span{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}}
@media(max-width:800px){.faq-item>summary{font-size:17px;gap:18px}.faq-answer{padding-right:0}}

/* Separate account and subscription actions in the landing navigation. */
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-actions .navcta{display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;padding:7px 17px;transition:background-color 180ms ease,border-color 180ms ease}
.nav-actions .nav-login{background:transparent;color:inherit;border:1px solid #d4d4d4}
.nav-actions .nav-login:disabled{opacity:.55;cursor:default}
@media(max-width:1050px){.nav .navlinks{display:none}}
@media(max-width:480px){.nav .mobile-menu{display:none}.nav-actions{gap:6px}.nav-actions .navcta{padding:7px 8px}}

.nav .brand{font-size:24px;white-space:nowrap;flex-shrink:0}
.nav .brand,.nav .brand:hover,.nav .brand:focus{border:0;text-decoration:none;box-shadow:none;background:none}

/* Keep action typography consistent with the hero across the landing page. */
.aligned-hero .actions .button,.access-purchase .button,.research-design-footer .button,.nav-actions .navcta,.research-nav summary{font:400 14px/1.62 'Courier New',monospace}
.nav-actions .navcta:focus-visible{outline:2px solid #111;outline-offset:4px}
@media(hover:hover){.nav-actions a.navcta:hover{background:#303030;border-color:#303030}.nav-actions a.nav-login:hover{background:#f2f2f2;border-color:#111;color:#111}}
@media(max-width:520px){.nav{height:auto;min-height:72px;flex-wrap:wrap;gap:12px;padding:16px 0}.nav-actions{margin-left:auto}.nav .mobile-menu{display:none}}
@media(prefers-reduced-motion:reduce){.nav-actions .navcta{transition:none}}

/* Shared research navigation on the landing pages and all three papers. */
.landing-nav{position:relative;z-index:50;gap:24px}
.paper .landing-nav{border-color:#111}
.landing-nav .navlinks{display:flex;align-items:center;margin-left:auto;margin-right:8px}
.research-nav{position:relative}
.research-nav summary{display:flex;align-items:center;gap:8px;padding:10px 0;list-style:none;cursor:pointer;color:#111;font-size:16px;line-height:1.42}
.research-nav summary::-webkit-details-marker{display:none}
.research-nav summary svg{flex-shrink:0}
.research-nav[open] summary svg{transform:rotate(180deg)}
.research-nav summary:focus-visible{outline:2px solid #111;outline-offset:5px}
.research-nav-menu{position:absolute;top:calc(100% + 10px);right:0;width:340px;max-width:calc(100vw - 56px);padding:6px;background:#fff;border:1px solid #ccc;box-shadow:0 8px 24px rgb(0 0 0 / 6%)}
.landing-nav .research-nav-menu a{display:block;padding:13px 14px;border-bottom:1px solid #eee;text-decoration:none;color:#111}
.landing-nav .research-nav-menu a:last-child{border-bottom:0}
.research-nav-title{display:block;font:400 16px/1.4 Georgia,serif}
.research-nav-description{display:block;margin-top:5px;font:11px/1.6 'Courier New',monospace;color:#666}
.landing-nav .research-nav-menu a:focus-visible{outline:1px solid #111;outline-offset:-1px;background:#f6f6f6}
@media(hover:hover){.landing-nav .research-nav-menu a:hover{background:#f6f6f6}}
@media(max-width:640px){.landing-nav{height:auto;min-height:72px;display:grid;grid-template-columns:1fr auto;gap:12px;padding:16px 0}.landing-nav .navlinks{margin:0;justify-self:end}.landing-nav .nav-actions{grid-column:1/-1;justify-self:end;margin:0}}

/* Locally served Google Fonts, subset to the wordmark; OFL licences in fonts/brand. */
@font-face{font-family:'Audiowide';font-style:normal;font-weight:400;font-display:swap;src:url('/assets/fonts/brand/audiowide-sgg-400.woff2') format('woff2')}
.nav .brand.brand-wordmark{display:inline-flex;align-items:baseline;gap:7px;line-height:1;text-decoration:none}
.nav .brand-wordmark .brand-sgg{font:400 28px/1 'Audiowide',Arial,sans-serif;letter-spacing:-.04em}

/* One quiet, readable footer across the product, papers and customer pages. */
.site-footer{padding:0 0 26px;border:0;background:transparent;color:#111}
.site-footer-main{display:grid;grid-template-columns:minmax(0,1fr) repeat(4,max-content);justify-content:space-between;gap:40px;border-top:1px solid #111;padding:40px 0 38px}
.site-footer-about p{margin:0;max-width:none;text-align:justify;text-align-last:left}
.site-footer-group{display:flex;flex-direction:column;align-items:flex-start;gap:10px;min-width:0}
.site-footer-group h2{font:12px/1.5 'Courier New',monospace;letter-spacing:0;font-weight:400;color:#666;margin:0 0 7px}
.site-footer-about p,.site-footer-group a{font:400 14px/1.55 Georgia,serif;color:#111}
.site-footer-group a{text-decoration:none;border:0}
.site-footer-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;border-top:1px solid #ddd;padding-top:22px}
.site-footer-bottom p,.site-footer-legal a{font:400 12px/1.7 'Courier New',monospace}
.site-footer-bottom p{color:#666;margin:0}
.site-footer-legal{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:flex-end}
.site-footer-legal a{white-space:nowrap;color:#333;border:0;text-decoration:none}
.site-footer a:focus-visible{outline:2px solid #111;outline-offset:5px}
.subscription-terms{grid-column:2;min-width:0;margin-top:-8px}
.subscription-terms p{font:11px/1.7 'Courier New',monospace;color:#555;margin:0;text-align:center}
.subscription-terms p+p{margin-top:8px}
.subscription-terms a{color:#333;text-decoration:underline;text-underline-offset:3px}
.subscription-terms a:focus-visible{outline:2px solid #111;outline-offset:3px}
@media(max-width:960px){.subscription-terms{grid-column:1}}
@media(hover:hover){.site-footer a:hover{color:#000;text-decoration:underline;text-underline-offset:4px}}
@media(max-width:1050px){.site-footer-main{gap:28px;grid-template-columns:repeat(4,minmax(0,1fr))}.site-footer-about{grid-column:1/-1}.site-footer-bottom{align-items:flex-start;flex-direction:column;gap:18px}.site-footer-legal{justify-content:flex-start}}
@media(max-width:680px){.site-footer-main{grid-template-columns:1fr 1fr;gap:28px 22px;padding:30px 0}.site-footer-group a{font-size:14px}.site-footer-legal{gap:12px 20px}.site-footer-bottom p,.site-footer-legal a{font-size:11px}.subscription-billing{font-size:11px}}
@media print{.site-footer{display:none}}

/* The same research-use notice accompanies papers and landing-page evidence. */
.research-notice{border-left:2px solid #ccc;margin:28px 0 0;padding:0 0 0 18px;break-inside:avoid}
.research-notice p{font:400 14px/1.75 Georgia,'Times New Roman',serif;color:#555;margin:0;text-align:justify;text-align-last:left}
.research-notice strong{font-weight:600;color:#333}
@media(max-width:600px){.research-notice{padding-left:14px}.research-notice p{text-align:left}}

.subscription-availability{font:12px/1.5 'Courier New',monospace;color:#555;margin:12px 0 0}

.subscription-purchase-note{min-width:0;margin-right:auto;text-align:left}
.subscription-limited{margin:0 0 6px;font:12px/1.5 'Courier New',monospace;color:#555}
.subscription-purchase-note .subscription-cancellation{margin:0}

/* Mobile landing: compact navigation and readable, naturally wrapping content. */
@media(max-width:800px){
  .landing-nav .nav-actions>a[href="#factor-subscription"],
  .landing-nav .nav-actions>a[href="/#factor-subscription"]{display:none}
  .aligned-hero{padding-top:40px;padding-bottom:36px;gap:28px}
  .aligned-hero h1{font-size:clamp(28px,7vw,36px)!important;line-height:1.16;margin-bottom:22px}
  .aligned-hero>div:first-child>p{font-size:16px;line-height:1.6}
  body:not(.paper):not(.account-page) .section{padding:36px 0}
  .results-card .result-sample{font-size:10px;white-space:normal;line-height:1.5}
  .results-card .result-proof{font-size:10px;line-height:1.6;white-space:normal}
  .results-card .card-top{flex-wrap:wrap}
  .access-grid,.faq-list{margin-top:30px}
  .research-evidence .research-heading{margin-bottom:28px}
}
@media(max-width:640px){
  .wrap{width:calc(100% - 40px)}
  .landing-nav{grid-template-columns:minmax(0,1fr) auto auto;gap:14px;padding:14px 0;min-height:68px}
  .landing-nav .navlinks{display:flex;margin:0}
  .landing-nav .nav-actions{grid-column:auto;justify-self:end}
  .landing-nav .research-nav summary{font-size:14px;gap:5px}
  .landing-nav .nav-actions .navcta{font-size:13px;padding:6px 10px}
  .landing-nav .nav-actions:has(.nav-account:not([hidden])){grid-column:1/-1;max-width:100%}
  .landing-nav .research-nav{position:static}
  .landing-nav .research-nav-menu{top:calc(100% + 6px);right:0;width:min(340px,100%);max-width:100%}
  .aligned-hero .actions{display:grid;grid-template-columns:1fr;gap:10px}
  .aligned-hero .actions .button{width:100%;white-space:normal;text-align:center}
  .research-plot-card{padding:18px 12px}
  .access-card-top{flex-wrap:wrap;gap:10px}
  .subscription-details>div{grid-template-columns:minmax(0,1fr);gap:4px}
  .subscription-details dd{text-align:left;overflow-wrap:anywhere}
  .subscription-purchase,.access-purchase{align-items:stretch}
  .subscription-purchase .button,.access-purchase .button{width:100%;white-space:normal;text-align:center}
  .subscription-cancellation{white-space:normal}
  .research-design-footer{align-items:stretch;gap:16px}
  .research-design-footer p{text-align:left}
  .research-design-footer .button{justify-content:center}
  .site-footer-main{column-gap:16px}
  .site-footer-group a{overflow-wrap:anywhere}
}

.research-uplift .research-chart-mobile{display:none}
@media(max-width:640px){.research-uplift .research-chart{display:none}.research-uplift .research-chart-mobile{display:block}}

/* Square landing network on mobile; the iframe owns its compact overlay rules. */
@media(max-width:800px){
  #network-preview iframe{height:auto!important;aspect-ratio:1 / 1}
}

/* Mobile type scale and spacing within landing sections. */
@media(max-width:800px){
  body:not(.paper):not(.account-page) .section h2{font-size:clamp(26px,4vw,32px);line-height:1.18;margin-bottom:14px}
  body:not(.paper):not(.account-page) .section .lead{font-size:16px;line-height:1.6;margin-top:0}
  .aligned-hero>div:first-child>p{margin-bottom:24px}
  #network-preview iframe{margin-top:24px}
  .research-design .grid3,.access-grid,.faq-list{margin-top:24px}
  .research-evidence .research-heading{margin-bottom:24px}
  .research-context{margin-top:22px}
  .research-context p{font-size:15px;line-height:1.65}
  .research-notice{margin-top:22px}
  .research-design .tile>p{padding-top:18px;font-size:15px;line-height:1.6}
  .research-design .research-assumptions{margin-top:18px;padding-top:16px}
  .research-design .research-assumptions dt{font-size:11px;line-height:1.5}
  .research-uplift figcaption .research-chart-legend{font-size:11px;line-height:1.6}
  .results-card .result-sample,.results-card .result-proof{font-size:11px}
  .subscription-details dt{font-size:12px}
  .subscription-details dd{font-size:15px;line-height:1.5}
  .faq-item>summary{font-size:16px;line-height:1.5;padding:17px 0;gap:16px}
  .faq-answer{padding-right:0;padding-bottom:18px}
  .faq-answer p,.faq-answer li{font-size:15px;line-height:1.65}
}