:root{--bpg-paper:#F4F6F7;--bpg-ink:#17242B;--bpg-blue:#2A5D7C;--bpg-tint:#E0E9EF;--bpg-navy:#16303F;--bpg-white:#fff;--bpg-rule:#b9c9d3}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:30px}
body{margin:0;background:var(--bpg-paper);color:var(--bpg-ink);font-family:'Libre Franklin',sans-serif;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:var(--bpg-blue);text-decoration-thickness:1px;text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--bpg-blue);outline-offset:5px}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{font-weight:700;line-height:1.15;letter-spacing:-.015em}
h1{font-size:clamp(36px,4.4vw,64px)}
h2{font-size:clamp(28px,3vw,42px)}
h3{font-size:23px}
p+p{margin-top:20px}
.bpg-skip{position:absolute;z-index:20;left:18px;top:-90px;background:white;padding:10px 20px}
.bpg-skip:focus{top:10px}
.bpg-notice{background:var(--bpg-tint);text-align:center;padding:10px 24px;font-size:15px;line-height:1.5}
.bpg-shell{position:relative;margin:12px}
.bpg-mast{position:relative;z-index:3;max-width:1260px;margin:0 auto;background:var(--bpg-white);padding:18px 26px;display:flex;gap:30px;align-items:center;justify-content:space-between}
.bpg-home-mast{position:absolute;top:20px;left:32px;right:32px}
.bpg-signature{flex:0 0 540px}
.bpg-wordmark{font-size:25px;font-weight:700;line-height:1.25;color:var(--bpg-ink);text-decoration:none;white-space:nowrap}
.bpg-headerline{font-size:15px;line-height:1.5;margin-top:5px;max-width:540px;font-weight:400}
.bpg-navigation{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:12px 22px;font-size:15px;font-weight:500;line-height:1.4}
.bpg-navigation a{color:var(--bpg-ink);text-decoration:none;white-space:nowrap;padding:5px 0}
.bpg-navigation a[aria-current=page]{color:var(--bpg-blue);text-decoration:underline;text-underline-offset:6px}
.bpg-navigation a:last-child{color:var(--bpg-blue);border:1px solid var(--bpg-blue);padding:9px 18px;border-radius:2px}
.bpg-phone-nav{display:none}
.bpg-home-window{min-height:790px;display:grid;grid-template-columns:54% 46%;border:1px solid var(--bpg-rule);border-radius:20px;overflow:hidden;background:var(--bpg-paper)}
.bpg-home-photo{width:100%;height:100%;min-height:790px;object-fit:cover;object-position:42% 52%}
.bpg-home-words{padding:180px clamp(30px,4vw,64px) 70px;align-self:center}
.bpg-home-words h1{font-size:clamp(38px,3.9vw,58px);line-height:1.14;overflow-wrap:normal}
.bpg-home-words>p{font-size:18px;line-height:1.65;margin-top:28px;max-width:34em}
.bpg-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.bpg-button{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:10px 20px;background:var(--bpg-blue);color:white;text-decoration:none;border:1px solid var(--bpg-blue);border-radius:2px;font-size:16px;font-weight:500;line-height:1.4}
.bpg-button:hover{background:var(--bpg-ink);text-decoration:none}
.bpg-button-secondary{background:transparent;color:var(--bpg-blue)}
.bpg-button-secondary:hover{color:white}
.bpg-wide{max-width:1348px;margin:0 auto;padding:0 30px}
.bpg-home-sections{margin-inline:-12px}
.bpg-topics{background:var(--bpg-navy);color:white;margin-top:90px;padding:86px 0 94px}
.bpg-center{text-align:center;max-width:850px;margin:0 auto 40px}
.bpg-center h2{font-size:30px;letter-spacing:-.01em}
.bpg-center p{font-size:17px;max-width:600px;margin:20px auto 0}
.bpg-portrait-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.bpg-topic-card{color:white;text-decoration:none;display:flex;flex-direction:column}
.bpg-topic-card img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;object-position:center;border-radius:7px}
.bpg-topic-card[href="/ghk-cu"] img{object-position:80% 30%}
.bpg-card-copy{display:block;padding:22px 0 0}
.bpg-card-copy h3{font-size:24px}
.bpg-card-copy p{font-size:16px;line-height:1.65;margin-top:12px;color:var(--bpg-tint)}
.bpg-topic-card:hover h3{text-decoration:underline;text-underline-offset:5px}
.bpg-topics a:focus-visible{outline-color:white}
.bpg-evidence-sheet{border-radius:20px;background:var(--bpg-tint);margin:24px;padding:90px 30px}
.bpg-sheet-heading{display:grid;grid-template-columns:1.1fr 1fr;gap:90px;max-width:1260px;margin:0 auto 60px}
.bpg-sheet-heading p{font-size:18px;max-width:540px}
.bpg-bento{display:grid;grid-template-columns:1.3fr 1.03fr .85fr;gap:24px;max-width:1260px;margin:auto;align-items:start}
.bpg-tile-column{display:grid;gap:24px}
.bpg-fact-tile{padding:32px;background:var(--bpg-paper);border-radius:7px}
.bpg-fact-tile h3{font-size:25px;line-height:1.25}
.bpg-fact-tile p{font-size:16px;line-height:1.7;margin-top:22px}
.bpg-fact-tile.bpg-wash{background:linear-gradient(155deg,#F4F6F7,#c5dce9)}
.bpg-fact-tile.bpg-ocean{background:var(--bpg-blue);color:white}
.bpg-fact-tile.bpg-ocean a{color:white}
.bpg-signal{width:100%;height:auto;margin-top:38px;color:var(--bpg-blue)}
.bpg-signal text{font-family:'Libre Franklin',sans-serif;font-size:16px;fill:currentColor}
.bpg-daylight{margin-top:84px}
.bpg-daylight img{width:100%;height:540px;object-fit:cover;object-position:center 48%}
.bpg-context-sheet{position:relative;margin-top:-24px;border-radius:20px 20px 0 0;background:var(--bpg-paper);padding:90px 0 88px}
.bpg-fact-columns{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:58px}
.bpg-fact-column{padding:10px 28px;border-left:1px solid var(--bpg-rule)}
.bpg-fact-column:first-child{border-left:0;padding-left:0}
.bpg-fact-column h3{font-size:23px;margin-bottom:20px}
.bpg-fact-column p{font-size:16px}
.bpg-read-index{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:45px 30px 110px;max-width:1348px;margin:auto}
.bpg-read-index>div>p{margin-top:24px;font-size:18px;max-width:500px}
.bpg-read-index img{width:100%;height:610px;object-fit:cover;border-radius:8px;object-position:center}
.bpg-arrow-list{margin-top:35px}
.bpg-arrow-list a{display:flex;justify-content:space-between;gap:16px;padding:20px 0;border-bottom:1px solid var(--bpg-rule);font-size:23px;text-decoration:none;line-height:1.3}
.bpg-arrow-list a:first-child{font-weight:700}
.bpg-arrow-list a:hover{text-decoration:underline}
.bpg-footer{background:var(--bpg-navy);color:white;padding:65px 30px 35px}
.bpg-footer-inner{max-width:1288px;margin:auto}
.bpg-footer p{font-size:16px;max-width:660px}
.bpg-footer-links{display:flex;flex-wrap:wrap;gap:15px 30px;margin:30px 0 40px}
.bpg-footer a{color:white;font-size:16px}
.bpg-footer .bpg-copyright{font-size:15px;border-top:1px solid #829daa;padding-top:25px;max-width:none}
.bpg-inner-mast{margin-top:20px}
.bpg-breadcrumbs{max-width:1288px;margin:38px auto 0;padding:0 30px;font-size:15px}
.bpg-inner-hero{display:grid;grid-template-columns:1fr 1fr;max-width:1416px;margin:26px auto 0;background:var(--bpg-tint);min-height:630px;border-radius:12px;overflow:hidden}
.bpg-inner-title{padding:70px clamp(30px,5vw,76px);align-self:center}
.bpg-inner-title h1{font-size:clamp(38px,4.5vw,65px);line-height:1.13}
.bpg-inner-title>p{font-size:20px;line-height:1.65;margin-top:28px;max-width:31em}
.bpg-inner-hero>img{width:100%;height:100%;min-height:630px;object-fit:cover;object-position:center}
.bpg-text-hero{display:block;min-height:0;max-width:1288px;margin:26px auto 0;background:transparent;border-radius:0}
.bpg-text-hero .bpg-inner-title{padding:50px 30px 60px;max-width:1040px}
.bpg-text-hero .bpg-inner-title>p{max-width:600px}
.bpg-article{max-width:1288px;padding:0 30px;margin:85px auto 105px}
.bpg-article-section{display:grid;grid-template-columns:minmax(180px,.72fr) minmax(0,1.7fr);gap:80px;padding:46px 0;border-top:1px solid var(--bpg-rule)}
.bpg-article-section h2{font-size:28px;max-width:300px}
.bpg-prose{max-width:600px;min-width:0;font-size:18px;line-height:1.8}
.bpg-prose p{max-width:600px}
.bpg-prescription-section .bpg-prose{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(220px,1fr);gap:30px;max-width:none;align-items:start}
.bpg-prescription-note{font-size:16px;line-height:1.8;border-left:3px solid var(--bpg-blue);padding-left:22px}
.bpg-reference-entry{padding:0 0 28px;margin:0 0 28px;border-bottom:1px solid var(--bpg-rule)}
.bpg-reference-entry:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.bpg-reference-entry h3{font-size:21px;margin-bottom:12px}
.bpg-reference-entry p{font-size:17px}
.bpg-reference-entry>a{display:inline-block;margin-top:10px;font-size:16px;overflow-wrap:anywhere}
.bpg-after-article{max-width:1288px;margin:0 auto 85px;padding:0 30px;display:flex;flex-wrap:wrap;gap:16px 30px}
.bpg-missing{max-width:920px;margin:90px auto 130px;padding:0 30px}
.bpg-missing h1{font-size:56px}
.bpg-missing p{margin-top:30px;max-width:650px;font-size:20px}
@media(min-width:1600px){.bpg-home-window{min-height:850px}.bpg-home-photo{min-height:850px}}
@media(max-width:1100px){
 .bpg-mast{gap:24px;padding:18px 22px}.bpg-navigation{gap:8px 16px;font-size:15px;min-width:0}
 .bpg-home-mast{left:22px;right:22px}.bpg-home-window{min-height:780px;grid-template-columns:49% 51%}.bpg-home-photo{min-height:780px}.bpg-home-words{padding:185px 28px 58px}.bpg-home-words h1{font-size:42px}
 .bpg-card-copy{padding:20px 0 0}
 .bpg-bento{gap:18px}.bpg-tile-column{gap:18px}.bpg-fact-tile{padding:25px}.bpg-fact-tile h3{font-size:22px}
 .bpg-sheet-heading{gap:40px}.bpg-read-index{gap:40px}.bpg-read-index img{height:570px}
 .bpg-article-section{gap:45px;grid-template-columns:minmax(160px,.65fr) minmax(0,1.7fr)}
 .bpg-prescription-section .bpg-prose{display:block}.bpg-prescription-note{margin-top:28px}
}
@media(max-width:850px){
 .bpg-desktop-nav{display:none}.bpg-phone-nav{display:block;position:relative;flex:0 0 auto}
 .bpg-phone-nav summary{list-style:none;cursor:pointer;font-size:16px;font-weight:500;padding:10px 12px;border:1px solid var(--bpg-blue);color:var(--bpg-blue);border-radius:2px}
 .bpg-phone-nav summary::-webkit-details-marker{display:none}.bpg-phone-nav summary::after{content:' +';font-size:18px}
 .bpg-phone-nav[open] summary::after{content:' −'}.bpg-phone-nav .bpg-navigation{position:absolute;right:0;top:56px;z-index:5;width:240px;background:white;padding:20px;display:grid;gap:10px;box-shadow:0 8px 20px #17242b18}
 .bpg-home-mast{position:relative;left:auto;right:auto;top:auto;margin:0 0 12px;padding:15px 20px}.bpg-home-window{grid-template-columns:1fr;min-height:0}.bpg-home-photo{min-height:0;height:440px;object-position:42% 52%}.bpg-home-words{padding:45px 40px 50px;text-align:center}.bpg-home-words h1{font-size:44px}.bpg-home-words>p{font-size:18px;margin-inline:auto}.bpg-home-words .bpg-actions{justify-content:center}
 .bpg-signature{flex:1}.bpg-headerline{max-width:540px}
 .bpg-wide{padding:0 24px}.bpg-topics{margin-top:65px;padding:65px 0}.bpg-portrait-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 12px}
 .bpg-evidence-sheet{margin:18px;padding:65px 24px}.bpg-sheet-heading{grid-template-columns:1fr;gap:25px;margin-bottom:40px}.bpg-sheet-heading h2{max-width:600px}.bpg-bento{grid-template-columns:1fr 1fr}.bpg-tile-column:last-child{grid-column:1/-1;grid-template-columns:1fr 1fr}
 .bpg-daylight{margin-top:60px}.bpg-daylight img{height:430px}.bpg-fact-columns{grid-template-columns:1fr 1fr;gap:36px 0}.bpg-fact-column:nth-child(3){border-left:0;padding-left:0}.bpg-context-sheet{padding:65px 0}
 .bpg-read-index{gap:30px;padding:30px 24px 75px}.bpg-read-index img{height:540px}.bpg-arrow-list a{font-size:20px}.bpg-read-index h2{font-size:31px}.bpg-read-index>div>p{font-size:17px}
 .bpg-inner-mast{margin:12px}.bpg-breadcrumbs{margin-top:25px;padding:0 24px}.bpg-inner-hero{margin:24px 12px 0;min-height:560px}.bpg-inner-title{padding:45px 24px}.bpg-inner-title h1{font-size:40px}.bpg-inner-title>p{font-size:18px}.bpg-inner-hero>img{min-height:560px}.bpg-text-hero{min-height:0;margin-left:0;margin-right:0}
 .bpg-article{padding:0 24px;margin:50px auto 65px}.bpg-article-section{grid-template-columns:1fr;gap:25px;padding:38px 0}.bpg-article-section h2{max-width:700px;font-size:29px}.bpg-prose{font-size:18px}.bpg-text-hero .bpg-inner-title{padding:35px 24px}
}
@media(max-width:580px){
 .bpg-home-sections{margin-inline:-10px}
 body{font-size:16px}.bpg-notice{font-size:15px;padding:10px 18px}.bpg-shell{margin:10px}.bpg-mast{padding:14px 8px;gap:12px;align-items:flex-start;background:var(--bpg-paper)}
 .bpg-mast{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:12px;row-gap:7px;align-items:center}.bpg-signature{display:contents}.bpg-wordmark{grid-column:1;grid-row:1;font-size:23px}.bpg-headerline{grid-column:1/-1;grid-row:2;font-size:15px;line-height:1.5;margin:0;max-width:none}.bpg-phone-nav{grid-column:2;grid-row:1;margin-top:0}.bpg-phone-nav summary{font-size:15px;padding:7px 10px}.bpg-phone-nav .bpg-navigation{top:48px}
 .bpg-home-window{display:flex;flex-direction:column;min-height:0;border-radius:16px}.bpg-home-photo{min-height:0;height:280px;width:100%;object-position:42% 57%}.bpg-home-words{padding:34px 22px 38px;text-align:center}.bpg-home-words h1{font-size:33px;line-height:1.16;letter-spacing:-.01em}.bpg-home-words>p{font-size:17px;line-height:1.65;margin-top:24px}.bpg-actions{margin-top:25px;gap:10px}.bpg-home-words .bpg-actions{display:grid;grid-template-columns:1fr}.bpg-button{min-height:48px;padding:11px 17px;font-size:16px}
 .bpg-wide{padding:0 20px}.bpg-topics{margin-top:50px;padding:55px 0}.bpg-center{margin-bottom:30px}.bpg-center h2{font-size:27px;line-height:1.2}.bpg-center p{font-size:16px}.bpg-portrait-row{grid-template-columns:1fr;gap:32px}.bpg-card-copy h3{font-size:24px}.bpg-card-copy p{font-size:16px}
 .bpg-evidence-sheet{margin:12px;padding:45px 20px;border-radius:16px}.bpg-sheet-heading{gap:22px;margin-bottom:32px}.bpg-sheet-heading h2{font-size:31px}.bpg-sheet-heading p{font-size:17px}.bpg-bento{grid-template-columns:1fr;gap:18px}.bpg-tile-column{gap:18px}.bpg-tile-column:last-child{grid-column:auto;grid-template-columns:1fr}.bpg-fact-tile,.bpg-fact-tile.bpg-ocean{min-height:0;padding:28px}.bpg-fact-tile h3{font-size:25px}.bpg-fact-tile p{font-size:17px}.bpg-signal{margin-top:30px}
 .bpg-daylight{margin-top:50px}.bpg-daylight img{height:370px;object-position:50% 50%}.bpg-context-sheet{padding:55px 0}.bpg-fact-columns{margin-top:35px;grid-template-columns:1fr;gap:0}.bpg-fact-column,.bpg-fact-column:first-child,.bpg-fact-column:nth-child(3){border-left:0;border-top:1px solid var(--bpg-rule);padding:25px 0}.bpg-fact-column h3{margin-bottom:15px}.bpg-fact-column p{font-size:17px}
 .bpg-read-index{grid-template-columns:1fr;padding:5px 22px 60px;gap:35px}.bpg-read-index img{height:400px;grid-row:1}.bpg-read-index h2{font-size:31px}.bpg-arrow-list a{font-size:22px;padding:20px 0}
 .bpg-footer{padding:45px 22px 28px}.bpg-footer-links{gap:15px 25px;margin:25px 0 35px}.bpg-footer p{font-size:16px}
 .bpg-inner-mast{margin:10px;padding:14px 8px}.bpg-breadcrumbs{margin-top:24px;padding:0 22px}.bpg-inner-hero{display:flex;flex-direction:column;margin:22px 12px 0;min-height:0;border-radius:10px}.bpg-inner-title{padding:35px 24px 40px}.bpg-inner-title h1{font-size:38px;line-height:1.15}.bpg-inner-title>p{font-size:18px;margin-top:23px}.bpg-inner-hero>img{min-height:0;height:300px;width:100%}.bpg-text-hero{margin:15px 0 0;display:block;background:none}.bpg-text-hero .bpg-inner-title{padding:25px 22px 35px}
 .bpg-article{padding:0 22px;margin:45px auto 50px}.bpg-article-section{gap:22px;padding:32px 0}.bpg-article-section h2{font-size:27px}.bpg-prose{font-size:18px;line-height:1.85}.bpg-prescription-note{font-size:16px;padding-left:18px;margin-top:28px}.bpg-reference-entry h3{font-size:21px}.bpg-reference-entry p{font-size:17px}.bpg-after-article{padding:0 22px;margin-bottom:55px}.bpg-missing{margin:55px 0 85px;padding:0 22px}.bpg-missing h1{font-size:40px}.bpg-missing p{font-size:18px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}