/* Independent BET6789 corner window; original artwork retains natural ratio. */
:root{--paper:#f7f8fa;--ink:#172a46;--muted:#51627a;--line:#ccd6e3;--surface:#eaf0f7;--navy:#152b4b;--blue:#1259a8;--gold:#efd18b;--track:1264px;--read:816px;--gutter:28px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.72 Arial,"Helvetica Neue",sans-serif;-webkit-font-smoothing:antialiased}body:has(.bt-menu-dialog.is-open){overflow:hidden}[hidden]{display:none!important}img{display:block;max-width:100%;height:auto}button,input,select,textarea{font:inherit}button{cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-underline-offset:.23em}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #aa7005;outline-offset:5px}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.16;text-wrap:balance}h2{font-size:clamp(30px,3.1vw,44px);letter-spacing:-.035em}h3{font-size:23px}p+p{margin-top:20px}ul,ol{padding-left:1.3em}.track{width:min(var(--track),calc(100% - var(--gutter)*2));margin-inline:auto}.reading{width:min(var(--read),100%);margin-right:auto}.prose{overflow-wrap:anywhere}.prose h3{margin:28px 0 16px}.section-label{display:block;color:#245c97;font-size:12px;font-weight:800;letter-spacing:.14em;line-height:1.5;text-transform:uppercase;margin-bottom:14px}.screen-reader-text,.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-100px;left:16px;background:#fff;color:#111;padding:12px;z-index:1000}.skip-link:focus{top:16px}.brand-logo{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--navy);padding:8px 14px;border-radius:3px}.brand-logo img{width:160px;max-height:64px;object-fit:contain;height:auto}.cta-primary,.cta-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:12px 23px;border:1px solid transparent;border-radius:4px;font-size:16px;line-height:1.35;font-weight:800;text-decoration:none;text-align:center}.cta-primary{color:#102541;background:var(--gold);border-color:#cfad62}.cta-primary:hover{background:#f8dfa5}.cta-secondary{background:transparent;color:#17375f;border-color:#406388}.cta-secondary:hover{background:#e0e9f5}.media-figure{position:relative;min-width:0;width:fit-content;max-width:100%;margin:0}.media-figure img{width:100%;height:auto;object-fit:contain}.media-figure figcaption{font-size:13px;line-height:1.5;margin-top:12px;color:var(--muted)}.domain-stamp{position:absolute;bottom:12px;right:12px;background:rgba(14,34,65,.9);color:#fff1cb;border:1px solid #cbae6e;padding:5px 9px;font-size:11px;line-height:1.25;letter-spacing:.03em;pointer-events:none;border-radius:3px}.media-figure:has(figcaption) .domain-stamp{bottom:46px}
.bt-header{position:relative;background:#fff;border-bottom:1px solid var(--line);z-index:100}.bt-header>.track{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;min-height:88px}.bt-header .brand-logo{justify-self:start}.bt-header .brand-logo img{width:150px;max-height:62px}.bt-menu-toggle{grid-column:2;display:inline-flex;align-items:center;gap:12px;justify-content:center;min-height:46px;padding:8px 18px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:700;border-radius:3px}.bt-header>.track>a:last-child:not(.brand-logo),.bt-header>.track>.header-contact{grid-column:3;justify-self:end;min-height:44px;display:flex;align-items:center;font-size:14px;text-decoration:none}.bt-menu-dialog{position:absolute;top:100%;left:50%;transform:translateX(-50%);width:min(1264px,calc(100vw - 56px));z-index:150;background:var(--navy);color:white;box-shadow:0 22px 52px #152b4b4d;padding:28px 32px 36px;max-height:80dvh;overflow:auto;border-top:3px solid var(--gold)}.bt-menu-dialog.is-open{display:block}.bt-menu-dialog nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 30px}.bt-menu-dialog nav a{display:flex;align-items:center;min-height:56px;padding:14px 0;border-bottom:1px solid #526780;text-decoration:none;font-size:18px;line-height:1.4}.bt-menu-dialog button{min-width:44px;min-height:44px;background:transparent;border:1px solid #8ea2bf;color:#fff;margin-bottom:22px;border-radius:3px}.bt-menu-dialog .brand-logo{margin-bottom:20px}.bt-home{padding-bottom:0}.bt-hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);grid-template-areas:"copy media" "copy rail";gap:20px 32px;align-items:start;padding-block:46px 54px}.bt-hero-copy{grid-area:copy;min-width:0;padding:8px 12px 0 0}.bt-hero-copy h1{font-size:clamp(42px,4vw,57px);line-height:1.08;letter-spacing:-.045em}.bt-hero-copy p{font-size:18px;line-height:1.78;margin-top:24px}.bt-hero-copy .cta-primary,.bt-hero-copy .cta-secondary{margin:26px 10px 0 0}.bt-hero-visual{grid-area:media;min-width:0}.bt-hero-visual .media-figure,.bt-hero-visual img{width:100%}.bt-hero-rail{grid-area:rail;display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--navy);color:#fff8e6;border-top:3px solid var(--gold)}.bt-hero-rail a{display:flex;align-items:center;justify-content:space-between;min-height:60px;padding:15px 22px;font-size:15px;line-height:1.4;font-weight:700;text-decoration:none}.bt-hero-rail a+a{border-left:1px solid #5c7392}.bt-hero-rail a:hover{background:#244975}.bt-brand{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 44px;margin-bottom:0}.bt-brand h2{margin-bottom:25px}.bt-brand>.prose,.bt-brand>.reading{max-width:var(--read)}.bt-brand .prose{font-size:18px;line-height:1.8}.bt-products{padding-block:54px;border-bottom:1px solid var(--line)}.bt-products>h2{margin-bottom:30px}.bt-products>article,.bt-products>.product-essay{padding-block:30px;border-top:1px solid var(--line)}.bt-products>article:last-child,.bt-products>.product-essay:last-child{padding-bottom:0}.bt-products h3{font-size:29px;letter-spacing:-.025em;margin-bottom:20px}.bt-products .prose{max-width:var(--read)}.bt-products .media-figure{margin-top:28px;max-width:900px}.bt-chapter{padding-block:54px;border-bottom:1px solid var(--line)}.bt-chapter h2{margin-bottom:25px}.bt-chapter>.prose{max-width:var(--read)}.bt-chapter>.media-figure{margin-block:28px;max-width:900px}.bt-service{padding-block:50px;border-bottom:1px solid var(--line)}.bt-service h2{margin-bottom:24px}.bt-service>.prose{max-width:var(--read)}.bt-service .table-scroll{max-width:100%;overflow-x:auto;margin-top:26px}.bt-service table{border-collapse:collapse;min-width:560px;width:100%;font-size:15px}.bt-service th,.bt-service td{padding:14px 18px;text-align:left;vertical-align:top;border:1px solid var(--line)}.bt-service th{background:var(--surface)}.bt-faq{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px 42px;padding-block:50px 60px}.bt-faq>h2{grid-column:1/-1;margin-bottom:6px}.bt-faq>article,.bt-faq>div{padding-top:22px;border-top:1px solid var(--line);min-width:0}.bt-faq h3{font-size:21px;margin-bottom:15px}.bt-faq details{border-top:1px solid var(--line)}.bt-faq summary{min-height:52px;padding:15px 0;cursor:pointer;font-weight:700}.bt-faq details p{padding-bottom:20px}
.bt-footer{background:var(--navy);color:#d5dfec;border-top:5px solid var(--gold);padding-block:46px 26px}.bt-footer .footer-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:54px}.bt-footer .footer-group{min-width:0}.bt-footer .footer-group+.footer-group{border-left:1px solid #566b88;padding-left:44px}.bt-footer .footer-group:nth-child(n+3){border-left:0;padding-left:0}.bt-footer .brand-logo{background:#10223d;padding:10px 14px;margin-bottom:22px}.bt-footer h2,.bt-footer h3{font-size:19px;letter-spacing:0;color:#ffe4aa;margin-bottom:18px}.bt-footer p{font-size:15px;line-height:1.8}.bt-footer a{overflow-wrap:anywhere}.bt-footer ul{list-style:none;padding:0;margin:0}.bt-footer li a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none}.bt-footer .legal-panel{border-top:1px solid #566b88;padding-top:22px;margin-top:26px}.bt-footer .legal-panel summary{min-height:48px;padding:10px 0;font-weight:700;cursor:pointer}.bt-footer .legal-panel p,.bt-footer .legal-panel>div{padding-block:12px}.bt-footer .copyright{margin-top:26px;padding-top:22px;border-top:1px solid #566b88;font-size:13px}
.site-float{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);z-index:90;width:min(336px,calc(100vw - 48px));padding:26px 20px 20px;background:#152e52;color:#fff;border:2px solid #e0ba66;border-radius:8px;box-shadow:0 22px 68px #10213e70}.float-logo{display:flex;align-items:center;justify-content:center;width:fit-content;max-width:calc(100% - 26px);margin:14px auto 20px}.float-logo img{width:150px;max-height:68px;object-fit:contain;height:auto}.float-close{position:absolute;right:2px;top:2px;width:44px;height:44px;padding:0;background:transparent;color:#fff1cc;border:0;font-size:28px}.float-actions{display:grid;gap:10px}.float-actions .cta-primary,.float-actions .cta-secondary{width:100%;min-height:48px}.float-actions .cta-secondary{border-color:#98acc9;color:#f6f8ff}.float-actions .cta-secondary:hover{background:#24466e}.site-float>p{text-align:center;font-size:14px;line-height:1.5;margin-bottom:14px}
@media(max-width:1099px){.bt-header>.track{min-height:72px;grid-template-columns:1fr auto;gap:20px}.bt-header .brand-logo img{width:125px;max-height:51px}.bt-menu-toggle{grid-column:2}.bt-header>.track>a:last-child:not(.brand-logo),.bt-header>.track>.header-contact{display:none}.bt-menu-dialog{position:fixed;top:80px;right:28px;left:auto;transform:none;width:min(520px,calc(100vw - 56px));max-height:80dvh}.bt-menu-dialog nav{grid-template-columns:1fr}.bt-hero{grid-template-columns:1fr;grid-template-areas:"copy" "media" "rail";gap:26px;padding-block:34px 42px}.bt-hero-copy{padding:0}.bt-hero-copy h1{font-size:clamp(42px,6vw,62px)}.bt-hero-copy p{max-width:816px}.bt-hero-visual{max-width:850px;width:100%;margin-inline:auto}.bt-hero-rail{width:100%}.bt-brand{padding:38px 32px}.bt-footer .footer-grid{gap:36px}.bt-footer .footer-group+.footer-group{padding-left:32px}}
@media(max-width:599px){:root{--gutter:18px}body{font-size:16px}h2{font-size:31px}.bt-header>.track{min-height:64px;gap:16px}.bt-header .brand-logo{padding:5px 9px}.bt-header .brand-logo img{width:112px;max-height:46px}.bt-menu-toggle{padding:8px 12px;min-height:44px;font-size:15px}.bt-menu-dialog{top:64px;left:0;right:0;width:100%;padding:20px 24px 28px;max-height:calc(100dvh - 80px)}.bt-menu-dialog nav a{font-size:20px;min-height:58px}.bt-hero{padding-block:28px 34px;gap:23px}.bt-hero-copy h1{font-size:39px}.bt-hero-copy p{font-size:17px;line-height:1.75;margin-top:20px}.bt-hero-copy .cta-primary,.bt-hero-copy .cta-secondary{margin-top:22px;min-height:48px;padding:11px 18px}.bt-hero-rail a{padding:13px 12px;font-size:14px;min-height:62px}.bt-brand{padding:30px 20px}.bt-brand .prose{font-size:17px;line-height:1.75}.bt-products{padding-block:36px}.bt-products h3{font-size:26px}.bt-products>article,.bt-products>.product-essay{padding-block:25px}.bt-chapter,.bt-service{padding-block:38px}.bt-faq{grid-template-columns:1fr;padding-block:38px 44px;gap:24px}.bt-faq>h2{grid-column:auto}.bt-faq h3{font-size:21px}.bt-footer{padding-block:34px 24px}.bt-footer .footer-grid{grid-template-columns:1fr;gap:28px}.bt-footer .footer-group+.footer-group{padding:26px 0 0;border-left:0;border-top:1px solid #566b88}.domain-stamp{font-size:10px;bottom:8px;right:8px;padding:4px 6px}.site-float{width:min(296px,calc(100vw - 48px));padding:24px 16px 16px}.float-logo img{width:140px}}
.bt-products .reading>h2{margin-bottom:24px}.bt-footer .footer-group>p+h2,.bt-footer .footer-group>ul+h3{margin-top:24px}
.bt-brand{padding-inline:0;position:relative;isolation:isolate;background:transparent}.bt-brand:before{content:"";position:absolute;inset:0 calc(-1*var(--gutter));background:var(--surface);z-index:-1;pointer-events:none}
.media-figure .domain-stamp,.media-figure:has(figcaption) .domain-stamp{top:12px;bottom:auto}
@media(max-width:599px){.media-figure .domain-stamp,.media-figure:has(figcaption) .domain-stamp{top:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* Footer-only density polish; the support CTA retains its inherited 50px minimum. */
.bt-footer{padding-block:36px 22px}
.bt-footer .footer-grid{gap:38px}
.bt-footer .footer-group+.footer-group{padding-left:32px}
.bt-footer .brand-logo{margin-bottom:14px}
.bt-footer h2,.bt-footer h3{line-height:1.3;margin-bottom:10px}
.bt-footer p{line-height:1.52}
.bt-footer p+p{margin-top:8px}
.bt-footer .footer-group>p+h2,.bt-footer .footer-group>ul+h3{margin-top:16px}
.bt-footer li a{min-height:38px;line-height:1.32}
.bt-footer .legal-panel{padding-top:16px;margin-top:18px}
.bt-footer .legal-panel summary{min-height:44px;padding:6px 0;line-height:1.35}
.bt-footer .legal-panel p,.bt-footer .legal-panel>div{padding-block:8px;line-height:1.5}
.bt-footer .copyright{margin-top:18px;padding-top:16px;line-height:1.4}
@media(max-width:599px){
  .bt-footer{padding-block:28px 20px}
  .bt-footer .footer-grid{gap:20px}
  .bt-footer .footer-group+.footer-group{padding-top:18px}
  .bt-footer li a{min-height:40px}
}