/* Case studies share the same foundation as Home, Work and About. */
.bn-case{--case-gap:clamp(65px,10vw,150px)}
.bn-case--dark{--bn-paper:#000000;--bn-ink:#ffffff;--bn-muted:#cccccc}
.bn-case .show-nav a[aria-current="location"] .bn-nav-label{font-weight:700}
.bn-case-hero{position:relative;height:86svh;min-height:620px;padding:110px var(--gutter) 36px}
.bn-case-hero__top{position:absolute;top:112px;left:var(--gutter);right:var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:25px;color:var(--bn-muted)}
.bn-case-hero__top .bn-text-link{font-size:12px}
.bn-case-hero__title-wrap{position:absolute;left:var(--gutter);right:var(--gutter);top:45%;transform:translateY(-50%);text-align:center}
.bn-case-hero__title{font:600 clamp(66px,13.2vw,205px)/1.14 var(--sans);letter-spacing:-.045em;padding:.06em 0 .14em;perspective:1000px}
.bn-case-hero__title>span,.bn-case-hero__title>em{display:block;white-space:nowrap}
.bn-case-hero__title>em{font:italic 400 1.16em/1.03 var(--serif);letter-spacing:-.05em;padding-bottom:.12em}
.bn-case-hero--short .bn-case-hero__title{font-size:clamp(140px,23vw,350px);letter-spacing:-.055em;line-height:1.04}
.bn-case-hero--long .bn-case-hero__title{font-size:clamp(50px,8.6vw,136px);line-height:1.08}
.bn-case-hero__type{font:400 12px/1.5 var(--sans);color:var(--bn-muted)}
.bn-case-hero__bottom{position:absolute;bottom:35px;left:var(--gutter);right:var(--gutter);display:grid;grid-template-columns:1fr 1.4fr 1fr;align-items:end;gap:35px}
.bn-case-hero__bottom>p{font:500 clamp(19px,2vw,29px)/1.18 var(--sans);letter-spacing:-.035em;text-align:center}
.bn-case-hero__bottom>p em{font-size:1.16em}
.bn-case-hero__bottom>div{justify-self:end;text-align:right;display:flex;flex-direction:column;gap:5px}
.bn-case-hero__bottom>div>em{font:italic 400 26px/1.15 var(--serif)}

.bn-case-cover{position:relative;height:140svh;min-height:780px;scroll-margin-top:0}
.bn-case-cover__stage{position:sticky;top:0;height:100svh;min-height:560px;background:#000000;overflow:hidden;isolation:isolate;color:#fff}
.bn-case-cover__frame{position:absolute;inset:0;overflow:hidden}
.bn-case-cover__frame>img,.bn-case-cover__frame>video{height:100%;width:100%;object-fit:cover;will-change:transform}
.bn-case-cover__stage::after{content:"";position:absolute;inset:55% 0 0;z-index:1;background:linear-gradient(transparent,#0007);pointer-events:none}
.bn-case-cover__caption{position:absolute;z-index:2;bottom:35px;left:var(--gutter);right:var(--gutter);display:flex;align-items:end;justify-content:space-between;gap:30px;font:500 14px/1.7 var(--sans)}
.bn-case-cover__caption>span>span{font-size:11px;color:#fff9}
.bn-case-cover__caption .bn-round-link{font-size:12px}
.bn-case-cover__caption .bn-round-link:hover .bn-arrow{background:#fff;color:#000}

.bn-case-intro{display:grid;grid-template-columns:.72fr 1.28fr;gap:8vw;padding:var(--case-gap) var(--gutter) 80px}
.bn-case-intro__keyword>.bn-label{margin-bottom:20px;color:var(--bn-muted)}
.bn-case-intro__keyword>h2{font:italic 400 clamp(48px,6.2vw,100px)/1.2 var(--serif);letter-spacing:-.05em;overflow-wrap:anywhere}
.bn-case-abstract{font:400 clamp(21px,2.25vw,33px)/1.42 var(--sans);letter-spacing:-.035em;max-width:850px}
.bn-case-facts{display:grid;grid-template-columns:1fr 1fr;gap:30px 25px;margin:45px 0 0}
.bn-case-facts>div:last-child{grid-column:1/-1}
.bn-case-facts dt{margin-bottom:8px;font:400 10px/1.5 var(--sans);color:var(--bn-muted)}
.bn-case-facts dd{max-width:620px;margin:0;font:400 15px/1.5 var(--sans)}
.bn-case-notes{margin-top:30px;max-width:640px}
.bn-case-notes summary{display:flex;align-items:center;justify-content:space-between;gap:30px;cursor:pointer;padding:10px 0;font:500 12px/1.5 var(--sans);list-style:none}
.bn-case-notes summary::-webkit-details-marker{display:none}
.bn-case-notes summary>span{transition:rotate .4s}
.bn-case-notes[open] summary>span{rotate:45deg}
.bn-case-notes p{margin:20px 0!important;font:400 16px/1.5 var(--sans);color:var(--bn-muted)}
.bn-case-notes blockquote{margin:25px 0;font:italic 400 26px/1.3 var(--serif);letter-spacing:-.025em}
.bn-case-notes blockquote>span{display:block;margin-top:12px;font:400 10px/1.5 var(--sans);color:var(--bn-muted);letter-spacing:0}
.bn-case-setup{display:grid;grid-template-columns:1fr 1fr;gap:9vw;padding:40px var(--gutter) var(--case-gap)}
.bn-case-setup article>.bn-label{color:var(--bn-muted)}
.bn-case-setup h2{max-width:570px;margin:20px 0 25px;font:500 clamp(29px,3.4vw,51px)/1.15 var(--sans);letter-spacing:-.055em;padding-bottom:.1em}
.bn-case-setup p{max-width:480px;font:400 17px/1.5 var(--sans);color:var(--bn-muted)}

/* The photographs occupy the edge of the page; the story follows them on the right. */
.bn-case-story{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(270px,.65fr);gap:7vw;align-items:start;padding:0 var(--gutter) 70px;position:relative;scroll-margin-top:115px}
.bn-case-reader{display:none;position:sticky;top:120px;grid-column:2;grid-row:1;min-width:0}
.bn-case-reader__top{display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--bn-muted);margin-bottom:40px}
.bn-case-reader__body{min-height:0}
.bn-case-reader__body>.bn-case-chapter__label{display:none}
.bn-case-reader__body>h3{margin-bottom:25px;font:500 clamp(29px,3.3vw,50px)/1.15 var(--sans);letter-spacing:-.055em;padding-bottom:.08em}
.bn-case-reader__body>p,.bn-case-reader__body .bn-case-chapter__extra>p{font:400 16px/1.5 var(--sans);color:var(--bn-muted)}
.bn-case-chapter__extra{margin-top:25px}
.bn-case-chapter__extra>h4{font:500 19px/1.3 var(--sans);letter-spacing:-.03em;margin:0 0 12px}
.bn-case-chapter__note{padding:15px 0 25px 12%;margin:0 0 40px;max-width:690px}
.bn-case-chapter__note>h4{font:500 clamp(25px,2.5vw,37px)/1.2 var(--sans);letter-spacing:-.045em;margin-bottom:20px}
.bn-case-chapter__note>p{font:400 clamp(17px,1.6vw,23px)/1.5 var(--sans);letter-spacing:-.02em;color:var(--bn-muted)}
.bn-case-chapter-nav{display:flex;flex-direction:column;gap:10px;margin-top:40px}
.bn-case-chapter-nav>a{display:grid;grid-template-columns:25px 1fr 18px;align-items:center;gap:10px;padding:9px 0;color:var(--bn-muted);font:400 11px/1.5 var(--sans);transition:color .3s}
.bn-case-chapter-nav>a>span:last-child{transition:transform .5s var(--bn-ease);opacity:0}
.bn-case-chapter-nav>a:hover,.bn-case-chapter-nav>a[aria-current="location"]{color:var(--bn-ink)}
.bn-case-chapter-nav>a[aria-current="location"]{font-weight:650}
.bn-case-chapter-nav>a:hover>span:last-child,.bn-case-chapter-nav>a[aria-current="location"]>span:last-child{opacity:1;transform:translate(2px,-2px)}
.bn-case-chapters{grid-column:1;grid-row:1;min-width:0;margin-left:calc(-1 * var(--gutter))}
.bn-case-chapter{position:relative;min-width:0;margin-bottom:90px;scroll-margin-top:120px}
.bn-case-chapter:last-child{margin-bottom:0}
.bn-case-chapter__copy{padding:35px var(--gutter) 45px}
.bn-case-chapter__copy>.bn-label{color:var(--bn-muted)}
.bn-case-chapter__copy>h3{margin:18px 0;font:500 clamp(31px,4vw,54px)/1.15 var(--sans);letter-spacing:-.05em}
.bn-case-chapter__copy>p,.bn-case-chapter__copy .bn-case-chapter__extra>p{font:400 17px/1.5 var(--sans);color:var(--bn-muted);max-width:620px}
.bn-case-media-grid{display:grid;grid-template-columns:1fr;gap:25px;margin-bottom:45px}
.bn-case-media-grid--2{grid-template-columns:1fr 1fr;gap:18px}
.bn-case-media-grid--3{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.bn-case-media{min-width:0;position:relative}
.bn-case-media__button{display:block;overflow:hidden;background:#cccccc}
.bn-case .bn-case-media img{width:100%;height:auto;max-width:100%;object-fit:contain;transition:scale 1s var(--bn-ease);transform-origin:center}
.bn-case-media__button:hover>img{scale:1.025}
.bn-case-media figcaption,.bn-case-film figcaption{display:flex;align-items:start;justify-content:space-between;gap:15px;padding:12px 0 0 15px;font:400 10px/1.5 var(--sans);color:var(--bn-muted)}
.bn-case-media figcaption>span:last-child{font-size:9px;white-space:nowrap}
.bn-case-media-grid--3 .bn-case-media figcaption{font-size:9px;display:block;padding-left:5px}
.bn-case-media-grid--3 .bn-case-media figcaption>span:last-child{display:none}
.bn-case-film{margin-bottom:40px;scroll-margin-top:115px}
.bn-case .bn-case-film>video{width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#000000;border-radius:0}
.bn-case-film figcaption>span:last-child{font-size:9px;text-align:right}
.bn-case-enhanced .bn-case-reader{display:block}
@media(min-width:981px){.bn-case-enhanced .bn-case-chapter__copy{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}}

.bn-case-takeaway{position:relative;min-height:78svh;background:#000000;color:#ffffff;padding:100px var(--gutter) 110px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
.bn-case-takeaway__top{display:flex;align-items:baseline;justify-content:space-between;width:100%;gap:30px;margin-bottom:45px}
.bn-case-takeaway__top>.bn-label{color:#ffffff99}
.bn-case-takeaway__top>em{font:italic 400 28px/1.2 var(--serif);color:#ffffffaa}
.bn-case-takeaway>h2{font:500 clamp(38px,5.6vw,88px)/1.17 var(--sans);letter-spacing:-.06em;max-width:1150px;padding-bottom:.12em}
.bn-case-takeaway>p{margin:30px 0 0 auto;max-width:570px;font:400 clamp(18px,1.8vw,25px)/1.45 var(--sans);letter-spacing:-.02em;color:#ffffffbb}
.bn-case-takeaway>.bn-text-link{margin-top:35px}
.bn-case-next{position:relative;display:grid!important;place-items:center;width:100%;height:95svh;min-height:560px;isolation:isolate;color:#fff!important;overflow:hidden;background:#000000}
.bn-case-next__image{position:absolute;inset:0;z-index:-2;overflow:hidden}
.bn-case-next__image>img{width:100%;height:100%;object-fit:cover;transition:scale 1.4s var(--bn-ease)}
.bn-case-next::after{position:absolute;inset:0;z-index:-1;content:"";background:#0007;transition:background .7s}
.bn-case-next:hover::after{background:#0005}
.bn-case-next:hover .bn-case-next__image>img{scale:1.045}
.bn-case-next__copy{display:flex;flex-direction:column;align-items:center;gap:24px;text-align:center;width:calc(100% - 2 * var(--gutter));padding:110px 0 70px}
.bn-case-next h2{font:550 clamp(48px,9vw,145px)/1.13 var(--sans);letter-spacing:-.055em;max-width:1100px;padding-bottom:.1em;text-wrap:balance}
.bn-case-next .bn-arrow{width:58px;height:58px;font-size:25px}
.bn-case-next:hover .bn-arrow{background:#fff;color:#000}
.bn-case .bn-footer{padding-top:30px}

/* Native dialog, with image-only navigation and a visible way back. */
.bn-case-lightbox{position:fixed;inset:0;width:100vw;max-width:none;height:100dvh;max-height:none;border:0;margin:0;padding:0;background:#000000;color:#ffffff;overscroll-behavior:contain}
.bn-case-lightbox::backdrop{background:#000000}
.bn-case-lightbox__top{position:absolute;top:28px;left:var(--gutter);right:var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:25px}
.bn-case-lightbox button{border:0;background:transparent;color:inherit;font:400 13px/1.5 var(--sans);cursor:pointer;padding:10px}
.bn-case-lightbox button:focus-visible{outline:1px solid currentColor;outline-offset:3px}
.bn-case-lightbox__stage{height:100%;display:grid;place-items:center;padding:95px var(--gutter) 105px}
.bn-case .bn-case-lightbox__stage>img{width:100%;height:100%;object-fit:contain;min-height:0;max-height:calc(100dvh - 200px)}
.bn-case-lightbox__bottom{position:absolute;bottom:22px;left:var(--gutter);right:var(--gutter);display:grid;grid-template-columns:40px 1fr auto 40px;align-items:center;gap:22px}
.bn-case-lightbox__caption{font:400 12px/1.5 var(--sans)}
.bn-case-lightbox__count{font:400 11px/1.5 var(--sans);color:#ffffff99;white-space:nowrap}
.bn-case-lightbox__bottom>button{font-size:22px}
.bn-case .bn-cursor{z-index:1000}

@media(min-width:1700px){.bn-case-reader{top:140px}.bn-case-reader__body>h3{font-size:48px}.bn-case-reader__body>p,.bn-case-reader__body .bn-case-chapter__extra>p{font-size:18px}}
@media(max-width:1150px) and (min-width:981px){.bn-case-story{grid-template-columns:minmax(0,1.35fr) minmax(270px,.75fr);gap:5vw}.bn-case-reader__body>h3{font-size:33px}.bn-case-reader__body>p,.bn-case-reader__body .bn-case-chapter__extra>p{font-size:15px}.bn-case-chapter-nav{margin-top:25px}.bn-case-hero__bottom{gap:20px}.bn-case-hero__bottom .bn-round-link{font-size:11px;gap:10px}}
@media(max-width:980px){
 .bn-case-story{display:block;padding-right:0;padding-left:0}.bn-case-reader,.bn-case-enhanced .bn-case-reader{display:none}.bn-case-chapters{margin:0}.bn-case-chapter{margin-bottom:65px;scroll-margin-top:90px}.bn-case-chapter__copy{display:block;padding:40px var(--gutter)}.bn-case-media-grid{gap:14px;margin-bottom:30px}.bn-case-media-grid--3{gap:10px}.bn-case-media figcaption,.bn-case-film figcaption{padding:10px 15px 0}.bn-case-reader__body{min-height:0}.bn-case-intro{grid-template-columns:.6fr 1.4fr;gap:6vw}.bn-case-intro__keyword>h2{font-size:7vw}.bn-case-hero__bottom .bn-round-link{font-size:11px;gap:10px}.bn-case-hero__bottom{gap:15px}.bn-case-hero__bottom>p{font-size:22px}
}
@media(max-width:700px){
 .bn-case-chapter__note{padding:10px var(--gutter) 20px;max-width:none}.bn-case-chapter__note>h4{font-size:26px}.bn-case-chapter__note>p{font-size:16px}
 .bn-case-hero{height:85svh;min-height:630px;padding-top:90px}.bn-case-hero__top{top:90px}.bn-case-hero__top>.bn-label{font-size:9px}.bn-case-hero__top .bn-text-link{font-size:11px}.bn-case-hero__title-wrap{top:42%}.bn-case-hero__title{font-size:clamp(48px,12.8vw,84px);letter-spacing:-.045em;line-height:1.2}.bn-case-hero--short .bn-case-hero__title{font-size:clamp(124px,30vw,210px);line-height:1.15}.bn-case-hero--long .bn-case-hero__title{font-size:clamp(39px,10.5vw,70px);line-height:1.15}.bn-case-hero__type{font-size:10px}.bn-case-hero__bottom{bottom:28px;grid-template-columns:1fr auto;gap:25px}.bn-case-hero__bottom>p{grid-row:1;grid-column:1/-1;text-align:center;font-size:23px;margin-bottom:20px}.bn-case-hero__bottom>.bn-round-link{grid-row:2;font-size:10px}.bn-case-hero__bottom>div{grid-row:2;grid-column:2}.bn-case-hero__bottom>div>.bn-label{font-size:9px}.bn-case-hero__bottom>div>em{font-size:23px}
 .bn-case-cover{height:125svh;min-height:650px}.bn-case-cover__stage{min-height:560px}.bn-case-cover__caption{bottom:28px;gap:20px;font-size:12px}.bn-case-cover__caption>span>span{font-size:9px}.bn-case-cover__caption .bn-round-link{font-size:10px;gap:10px}.bn-case-cover__caption .bn-arrow{width:32px;height:32px;font-size:17px}
 .bn-case-intro{display:block;padding:75px var(--gutter) 40px}.bn-case-intro__keyword{margin-bottom:35px}.bn-case-intro__keyword>.bn-label{margin-bottom:10px}.bn-case-intro__keyword>h2{font-size:58px;line-height:1.15}.bn-case-abstract{font-size:21px;line-height:1.43}.bn-case-facts{margin-top:35px;gap:25px}.bn-case-facts dt{font-size:9px}.bn-case-facts dd{font-size:13px}.bn-case-notes{margin-top:20px}.bn-case-notes p{font-size:15px}
 .bn-case-setup{grid-template-columns:1fr;gap:45px;padding-top:35px;padding-bottom:65px}.bn-case-setup h2{font-size:31px;line-height:1.18;margin-bottom:18px}.bn-case-setup p{font-size:16px}.bn-case-setup .bn-label{font-size:10px}.bn-case-chapter__copy{padding-top:20px;padding-bottom:30px}.bn-case-chapter__copy>h3{font-size:32px;line-height:1.16}.bn-case-chapter__copy>p,.bn-case-chapter__copy .bn-case-chapter__extra>p{font-size:16px}.bn-case-chapter__extra>h4{font-size:18px}.bn-case-chapter__copy>.bn-label{font-size:10px}.bn-case-media-grid{margin-bottom:25px}.bn-case-media-grid--2{gap:10px}.bn-case-media-grid--3{gap:7px}.bn-case-media figcaption{padding-left:10px;padding-right:10px;font-size:9px;gap:8px}.bn-case-media-grid--2 .bn-case-media figcaption{display:block}.bn-case-media-grid--2 .bn-case-media figcaption>span:last-child{display:none}.bn-case-media-grid--3 .bn-case-media figcaption{font-size:8px;padding-left:5px}.bn-case-film figcaption{font-size:9px}.bn-case-film figcaption>span:last-child{font-size:8px}.bn-case-story{padding-bottom:30px}
 .bn-case-takeaway{min-height:70svh;padding:75px var(--gutter) 80px}.bn-case-takeaway__top{margin-bottom:35px;gap:20px}.bn-case-takeaway__top>.bn-label{font-size:10px}.bn-case-takeaway__top>em{font-size:23px}.bn-case-takeaway>h2{font-size:36px;line-height:1.2;letter-spacing:-.055em}.bn-case-takeaway>p{font-size:17px;line-height:1.5;margin-top:25px}.bn-case-takeaway>.bn-text-link{font-size:12px}
 .bn-case-next{height:76svh;min-height:520px}.bn-case-next__copy{padding:100px 0 65px;gap:25px}.bn-case-next h2{font-size:clamp(41px,11vw,70px);line-height:1.15;letter-spacing:-.045em}.bn-case-next .bn-arrow{width:45px;height:45px;font-size:21px}.bn-case-next .bn-label{font-size:10px}
 .bn-case-lightbox__top{top:15px}.bn-case-lightbox__stage{padding:80px 12px 110px}.bn-case .bn-case-lightbox__stage>img{max-height:calc(100dvh - 190px)}.bn-case-lightbox__bottom{bottom:18px;gap:10px;grid-template-columns:30px 1fr auto 30px}.bn-case-lightbox__caption{font-size:10px}.bn-case-lightbox__count{font-size:9px}.bn-case-lightbox__top>.bn-label{max-width:60%;font-size:10px}
}
@media(prefers-reduced-motion:reduce){.bn-case-cover{height:90svh;min-height:560px}.bn-case-cover__stage{position:relative;height:100%}.bn-case-cover__frame{clip-path:none!important}.bn-case-media__button:hover>img,.bn-case-next:hover .bn-case-next__image>img{scale:1}}