:root{--ink:#111512;--paper:#efede5;--gold:#c59851;--muted:#b5b9b0;--line:#394138;--pad:clamp(24px,5vw,96px)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--ink);color:var(--paper);font:16px/1.6 'IBM Plex Sans',sans-serif}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}img,video{display:block;max-width:100%}figure,p,h1,h2,h3{margin:0}p+p{margin-top:16px}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid var(--gold);outline-offset:6px}button{background:none;border:0}h1,h2,h3{font-family:'Barlow Condensed',sans-serif;font-weight:500;line-height:.98;letter-spacing:-.025em}h2{font-size:clamp(48px,5.2vw,88px)}h3{font-size:clamp(34px,3vw,50px)}.eyebrow{font-size:11px;letter-spacing:.15em;font-weight:500;line-height:1.5}.skip{position:fixed;top:-100px;left:20px;z-index:99;padding:15px;background:var(--paper);color:var(--ink)}.skip:focus{top:10px}.prototype{padding:7px var(--pad);font-size:10px;letter-spacing:.12em;background:#252c27;display:flex;justify-content:space-between}.prototype a{text-decoration:underline;text-underline-offset:3px}.header{height:105px;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line);background:var(--ink);position:sticky;top:0;z-index:20}.brand img{width:190px;height:auto;filter:brightness(1.15)}.header nav{display:flex;align-items:center;gap:clamp(16px,2.3vw,40px);font-size:13px}.header nav>a:not(.action){transition:color .18s}.header nav>a:hover{color:var(--gold)}.header-call{font-variant-numeric:tabular-nums}.action{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;background:var(--paper);color:var(--ink);padding:19px 23px;font-size:11px;letter-spacing:.04em;font-weight:600;line-height:1.3;position:relative;transition:background .2s}.action:before{content:'';position:absolute;inset:-6px auto -6px -7px;width:12px;border:1px solid var(--gold);border-right:0;transition:width .2s}.action:hover{background:#d9c294}.action:hover:before{width:20px}.action.small{padding:15px 18px}.action.dark{background:var(--ink);color:var(--paper)}.actions{display:flex;gap:28px;align-items:center;flex-wrap:wrap}.call{display:inline-flex;gap:22px;align-items:center;font-size:11px;font-weight:600;letter-spacing:.06em;min-height:44px}.call span{color:var(--gold)}.menu-toggle,.mobile-menu,.mobile-actions{display:none}.hero{padding:56px var(--pad) 22px;display:grid;grid-template-columns:41% 59%;position:relative;column-gap:0}.hero-copy{padding:14px 28px 44px 0;z-index:2}.hero h1{font-size:clamp(72px,8.4vw,160px);line-height:.91;letter-spacing:-.04em;margin:28px 0 32px;white-space:nowrap;position:relative;pointer-events:none}.hero h1 span{color:var(--gold)}.hero-description{font-size:clamp(20px,1.7vw,27px);line-height:1.32}.audience{font-size:12px;color:var(--muted);line-height:1.6;margin:18px 0 30px}.hero-media{align-self:stretch;padding:0 0 0 16px;min-width:0}.film-shell{position:relative;height:calc(100% - 53px);min-height:480px;background:#202521}.film-shell video{width:100%;height:100%;object-fit:cover;object-position:58% 50%;position:absolute;inset:0}.film-corner{position:absolute;inset:0;pointer-events:none;border-top:1px solid var(--gold)}.film-corner:before{content:'';position:absolute;width:25px;height:20px;top:-1px;left:-17px;border-top:1px solid var(--gold);border-left:1px solid var(--gold)}.hero-media figcaption{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:17px 0 0;font-size:10px;letter-spacing:.07em}.hero-media figcaption a{letter-spacing:0;border-bottom:1px solid var(--line)}.hero-footer{grid-column:1/-1;margin-top:42px;padding:24px 0 8px;display:grid;grid-template-columns:1fr 2fr 1fr;gap:34px;align-items:center;border-top:1px solid var(--line);font-size:10px;letter-spacing:.1em}.hero-footer>p:last-child{text-align:right}.phase-line{display:flex;align-items:center;gap:15px}.phase-line i{height:1px;flex:1;background:var(--line);position:relative}.phase-line i:last-of-type{background:var(--gold)}.light{background:var(--paper);color:var(--ink)}.section-pad{padding:100px var(--pad)}.section-title{display:grid;grid-template-columns:1fr 2fr;gap:18px 40px;margin-bottom:64px;align-items:start}.section-title .eyebrow{grid-column:1;padding-top:8px}.section-title h2{grid-column:2}.section-title>p:not(.eyebrow),.section-title>.text-link{grid-column:2;max-width:540px;margin-top:8px}.text-link{display:inline-flex;align-items:center;gap:22px;font-size:13px;padding:12px 0;border-bottom:1px solid currentColor;width:fit-content;transition:gap .2s}.text-link:hover{gap:34px}.passage{padding:100px var(--pad) 70px}.story{display:grid;grid-template-columns:61% 31%;gap:8%;align-items:start}.story-visual{min-width:0}.story-frame figure{margin-bottom:24px}.story-frame img,.story-frame video{width:100%;aspect-ratio:4/3;object-fit:cover}.story-frame img{object-position:50% 50%}.story-frame figcaption{font-size:11px;padding:14px 0;line-height:1.4}.story-controls{display:none}.story-steps article{padding:20px 0 80px;scroll-margin-top:160px}.story-steps .eyebrow{margin-bottom:25px}.story-steps h3{margin-bottom:25px;font-size:clamp(42px,4vw,66px)}.story-steps p{max-width:390px}.technical-tag{display:block;margin-top:25px;padding-top:18px;border-top:1px solid #bbbdb4;font-size:11px;line-height:1.5}.small-copy{font-size:12px;line-height:1.55;opacity:.75}.enhanced .story-visual{position:sticky;top:136px}.enhanced .story-frame{position:relative;aspect-ratio:4/3;min-height:0;margin-bottom:45px}.enhanced .story-frame figure{position:absolute;inset:0;visibility:hidden;opacity:0;transition:opacity .35s ease;pointer-events:none}.enhanced .story-frame figure.active{visibility:visible;opacity:1;pointer-events:auto}.enhanced .story-frame img,.enhanced .story-frame video{height:100%;aspect-ratio:auto}.enhanced .story-controls{display:flex;justify-content:space-between;gap:14px;margin-top:12px}.story-controls a{padding:16px 0;font-size:10px;letter-spacing:.08em;border-top:2px solid #b8b9b0;flex:1}.story-controls a[aria-current]{border-color:#8d652e}.enhanced .story-steps article{min-height:64vh;padding:14vh 0 7vh}.enhanced .story-steps article:last-child{min-height:75vh}.application-layout{display:grid;grid-template-columns:43% 50%;gap:7%;align-items:stretch}.application-view{background:#222922;position:relative;min-height:625px}.application-view>img{width:100%;height:330px;object-fit:cover;object-position:center 45%}.application-caption{padding:32px 35px 38px}.application-caption h3{font-size:42px;margin:13px 0}.application-caption>p:not(.eyebrow){font-size:14px;color:#cbd0c5}.application-caption .text-link{margin-top:20px}.application-view.empty{display:flex;align-items:center;background:transparent;border:1px solid var(--line)}.application-view.empty>img{display:none}.application-view.empty .application-caption{padding:50px}.application-view.empty h3{font-size:64px}.application-list{display:flex;flex-direction:column}.application-list button{display:grid;grid-template-columns:30px 1fr 24px;gap:18px;text-align:left;align-items:baseline;padding:30px 0;border-top:1px solid var(--line);position:relative;flex:1}.application-list button:last-child{border-bottom:1px solid var(--line)}.application-list .number{font-size:10px;color:var(--muted)}.application-list button>span:nth-child(2){font-family:'Barlow Condensed',sans-serif;font-size:clamp(28px,2.8vw,45px);line-height:1.2;letter-spacing:-.01em}.application-list small{display:block;font-family:'IBM Plex Sans',sans-serif;font-size:11px;letter-spacing:0;color:var(--muted);margin-top:10px;line-height:1.5}.application-list .arrow{font-size:24px;transition:transform .2s}.application-list button[aria-pressed=true]{border-top-color:var(--gold)}.application-list button[aria-pressed=true] .arrow{color:var(--gold);transform:translate(3px,-3px)}.application-list button:hover>span:nth-child(2){color:#ddbd87}.proof-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:35px;align-items:start}.proof-card{display:block}.proof-card:nth-child(2){margin-top:85px}.proof-card:nth-child(3){margin-top:165px}.image-wrap{overflow:hidden;background:#d4d4cb}.proof-card img{width:100%;height:330px;object-fit:cover;transition:transform .45s ease}.primary-proof img{height:460px}.proof-card:hover img{transform:scale(1.025)}.proof-card .eyebrow{margin:24px 0 15px;font-size:10px}.proof-card h3{font-size:clamp(32px,2.6vw,44px);line-height:1.08}.proof-card p:not(.eyebrow){font-size:13px;margin-top:16px}.proof-card .text-link{margin-top:12px}.other-proofs{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-top:65px;padding-top:25px;border-top:1px solid #b7bbb1;font-size:13px}.other-proofs span{font-size:10px;letter-spacing:.1em;margin-right:auto}.other-proofs a:hover{text-decoration:underline}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:60px;margin-left:calc(33.33% + 14px);margin-bottom:65px}.method-grid article{border-top:1px solid var(--line);padding-top:22px}.method-grid article>span{font-size:11px;color:var(--muted)}.method-grid h3{margin:20px 0;font-size:38px}.method-grid p{font-size:14px;color:#bec5ba}.faq{margin-left:calc(33.33% + 14px);margin-bottom:30px}.faq details{border-top:1px solid var(--line);padding:20px 0}.faq details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:25px}summary:after{content:'+';font-size:22px}details[open] summary:after{content:'−'}details p{padding-top:16px;max-width:630px;font-size:14px;color:#bdc6b8}.method>.text-link{margin-left:calc(33.33% + 14px)}.project{padding-top:85px;padding-bottom:100px}.project-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:10%;margin-top:40px;align-items:center}.project h2{font-size:clamp(80px,9vw,152px);line-height:.9}.project h2 span{color:#876333}.large-copy{font-size:clamp(24px,2.4vw,38px);line-height:1.25}.project-grid p:not(.large-copy){max-width:420px}.project .actions{margin:32px 0 25px}.project .small-copy{font-size:11px}footer{padding:45px var(--pad);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px}footer p{width:100%;font-size:11px;color:var(--muted)}
@media(min-width:1800px){body{max-width:2100px;margin:auto}.hero h1{font-size:160px}.hero{padding-top:75px}.film-shell{min-height:600px}}
@media(max-width:1150px){.header-call{display:none}.header nav{gap:18px}.hero{grid-template-columns:43% 57%;padding-top:40px}.hero h1{font-size:8.7vw}.film-shell{min-height:440px}.hero-footer{grid-template-columns:1fr 2fr}.hero-footer>p:last-child{display:none}.hero-media figcaption{display:block}.hero-media figcaption a{display:block;width:fit-content;margin-top:10px}.story{grid-template-columns:57% 36%;gap:7%}.application-caption{padding:25px}.application-list button>span:nth-child(2){font-size:33px}.proof-grid{gap:22px}.method-grid{gap:25px;margin-left:0}.primary-proof img{height:360px}.proof-card img{height:280px}}
@media(max-width:760px){html{scroll-padding-top:86px}.prototype{font-size:8px;padding:5px 20px;letter-spacing:.03em}.prototype a{max-width:135px;text-align:right}.header{height:76px;padding:0 20px;gap:10px}.brand img{width:150px}.header nav{display:none}.menu-toggle{display:flex;gap:10px;font-size:10px;align-items:center;min-height:44px;padding:8px}.menu-toggle span{font-size:22px}.mobile-menu:not([hidden]){display:grid;position:fixed;top:76px;left:0;right:0;background:var(--ink);padding:25px;z-index:22;border-bottom:1px solid var(--line);box-shadow:0 30px 60px #0007}.mobile-menu a{font-family:'Barlow Condensed';font-size:30px;padding:12px 0;border-bottom:1px solid var(--line)}.hero{display:flex;flex-direction:column;padding:25px 20px 0}.hero-copy{padding:0;display:contents}.hero .eyebrow{font-size:9px;letter-spacing:.08em;order:0}.hero h1{font-size:clamp(49px,12vw,78px);line-height:.94;letter-spacing:-.025em;margin:12px 0 17px;order:1;white-space:normal}.hero h1 br{display:none}.hero-description{font-size:16px;line-height:1.4;order:3;margin-top:17px}.hero-description br{display:none}.audience{font-size:10px;line-height:1.6;margin:8px 0 17px;order:4}.hero .actions{order:5;gap:22px;flex-wrap:nowrap;margin-bottom:22px}.action{padding:17px 16px;font-size:10px;gap:17px}.call{font-size:10px;gap:12px}.hero-media{order:2;padding:0}.film-shell{height:auto;min-height:0;aspect-ratio:16/10}.hero-media figcaption{display:flex;gap:8px;padding-top:9px;font-size:8px;letter-spacing:.02em;align-items:center}.hero-media figcaption a{margin:0;white-space:nowrap}.hero-footer{display:block;order:6;width:100%;margin:0;padding:20px 0 24px;font-size:9px}.hero-footer>p{display:none}.phase-line{gap:12px}.hero-footer>p:last-child{display:none}.section-pad,.passage{padding:58px 20px}.section-title{display:block;margin-bottom:30px}.section-title .eyebrow{padding:0;margin-bottom:18px}.section-title h2{font-size:46px;line-height:1}.section-title>p:not(.eyebrow),.section-title>.text-link{font-size:14px;margin-top:22px}.story,.enhanced .story{display:flex;flex-direction:column;gap:24px}.enhanced .story-visual{position:static;width:100%}.enhanced .story-frame{aspect-ratio:4/3;margin-bottom:48px}.story-controls a{font-size:9px;padding:14px 0}.story-frame figcaption{font-size:10px;padding-top:12px}.enhanced .story-steps article{display:none;min-height:0;padding:8px 0 0;scroll-margin-top:150px}.enhanced .story-steps article.active{display:block}.story-steps h3{font-size:38px;margin-bottom:16px}.story-steps .eyebrow{display:none}.story-steps p{font-size:14px}.technical-tag{margin-top:18px;font-size:10px}.application-layout{display:flex;flex-direction:column;gap:25px}.application-view{min-height:0;order:2}.application-view>img{height:245px}.application-caption{padding:25px}.application-caption h3{font-size:34px}.application-list{order:1}.application-list button{padding:18px 0;gap:12px;grid-template-columns:22px 1fr 20px;min-height:85px}.application-list button>span:nth-child(2){font-size:27px}.application-list small{font-size:10px;margin-top:5px}.application-list .arrow{font-size:20px}.application-view.empty .application-caption{padding:32px}.application-view.empty h3{font-size:44px}.proof-grid{display:grid;grid-template-columns:1fr;gap:36px}.proof-card:nth-child(n){margin-top:0}.proof-card img,.primary-proof img{height:270px}.primary-proof{display:block}.proof-card h3{font-size:34px}.proof-card .eyebrow{margin:18px 0 10px}.other-proofs{gap:15px 24px;margin-top:35px;padding-top:25px}.other-proofs span{width:100%;font-size:9px}.method-grid{display:block;margin:0 0 40px}.method-grid article{padding:18px 0 25px;display:grid;grid-template-columns:25px 1fr;column-gap:15px}.method-grid h3{font-size:31px;margin:0 0 10px}.method-grid p{grid-column:2}.method-grid article>span{padding-top:5px}.faq,.method>.text-link{margin-left:0}.faq summary{font-size:14px;gap:20px}.project-grid{display:block;margin-top:28px}.project h2{font-size:82px;margin-bottom:36px}.project h2 br{display:none}.project .large-copy{font-size:27px}.project-grid p:not(.large-copy){font-size:14px}.project .actions{gap:22px;flex-wrap:nowrap}.project .small-copy{font-size:10px!important}.mobile-actions{display:grid;grid-template-columns:1fr 1.6fr;position:fixed;bottom:0;left:0;right:0;padding:9px 15px calc(9px + env(safe-area-inset-bottom));z-index:25;background:var(--ink);border-top:1px solid var(--line);gap:12px}.mobile-actions a{display:flex;justify-content:space-between;align-items:center;font-size:10px;letter-spacing:.025em;min-height:44px;padding:8px 13px}.mobile-actions a:last-child{background:var(--paper);color:var(--ink);border-left:2px solid var(--gold)}footer{padding:30px 20px 100px;display:block}footer a{display:block;margin:18px 0}.project{padding-bottom:65px}}
.film-control{position:absolute;right:var(--pad);top:25px;z-index:4;background:#111512ec;border:1px solid #899180;padding:12px 16px;font-size:10px;letter-spacing:.07em;min-height:44px}.application-view{scroll-margin-top:100px}
@media(max-width:760px){.film-control{position:static;align-self:flex-end;order:2;padding:7px 10px;margin-top:6px;min-height:36px;font-size:9px}}
/* Le film devient la scène du premier écran ; aucun voile sur la zone de travail à droite. */
@media(min-width:761px){.hero{display:block;padding:0;isolation:isolate}.hero-copy{position:relative;z-index:2;width:53%;padding:50px 0 104px var(--pad);min-height:640px;pointer-events:none}.hero-copy a{pointer-events:auto}.hero-copy:before{content:'';position:absolute;inset:0 -10% 0 0;z-index:-1;background:linear-gradient(90deg,#111512 0%,#111512f5 46%,#111512c2 74%,transparent 100%);pointer-events:none}.hero h1{font-size:clamp(75px,8.4vw,152px)}.hero-media{position:absolute;inset:0 0 90px 0;z-index:-2;padding:0}.film-shell{height:100%;min-height:0}.film-shell video{object-fit:cover;object-position:center}.film-corner{display:none}.hero-media figcaption{position:absolute;bottom:80px;right:var(--pad);left:60%;display:block;padding:12px 14px;background:#111512e8;width:fit-content;font-size:10px;line-height:1.7}.hero-media figcaption a{display:block;margin-top:7px}.hero-footer{position:relative;margin:0;padding:28px var(--pad);min-height:90px;background:var(--ink)}.hero-footer .phase-line{position:relative}.hero-footer .phase-line:after{content:'';position:absolute;left:0;bottom:-12px;width:var(--film-progress,0%);height:1px;background:var(--gold);transition:width .2s linear}}
.story-frame video{object-fit:contain!important;background:var(--ink)}
@media(max-width:760px){.hero h1 br{display:block}.hero h1{font-size:clamp(49px,14vw,78px)}.film-control{min-height:44px}.hero-description{font-size:15px}.project h2{font-size:clamp(55px,17vw,82px)}.application-list button>span:nth-child(2){min-width:0;font-size:clamp(24px,7vw,27px);overflow-wrap:anywhere}}
/* Validation du prototype : garder le média et ses commandes dans les écrans peu hauts. */
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.film-status:empty{display:none}
.film-status{position:absolute;right:var(--pad);top:80px;z-index:4;max-width:290px;padding:12px 16px;background:var(--ink);font-size:12px}
.phase-line i:last-of-type{background:var(--line)}
.enhanced .story-frame{width:100%;max-height:calc(100svh - 270px)}
.enhanced .story-frame img{object-fit:contain;background:#deded5}
.application-return{display:none}
.application-list{scroll-margin-top:110px}
.proof-card:focus-visible img{transform:scale(1.025)}
.fallback-nav{display:flex;gap:20px;flex-wrap:wrap;padding:20px var(--pad);font-size:13px}
html:not(.enhanced) .application-list button,html:not(.enhanced) .application-return{display:none}
.story-visual{scroll-margin-top:100px}
.case-opening{padding-top:38px;padding-bottom:60px}
.case-opening>.eyebrow{margin:40px 0 20px}
.case-opening h1{font-size:clamp(60px,7vw,110px);max-width:1050px}
.case-opening-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:6%;align-items:center}
.case-opening-grid h1{font-size:clamp(52px,5.4vw,90px)}
.case-intro{font-size:20px;max-width:720px;margin-top:28px}
.case-facts{display:flex;flex-wrap:wrap;gap:25px 70px;margin:42px 0 32px;padding-top:25px;border-top:1px solid var(--line)}
.case-facts dt{font-size:10px;letter-spacing:.13em;color:var(--muted)}
.case-facts dd{font-size:14px;margin:8px 0 0}
.case-nav{display:flex;flex-wrap:wrap;gap:22px 38px;font-size:12px}
.case-nav a{padding:12px 0;border-bottom:1px solid var(--gold)}
.case-chapter{scroll-margin-top:0}
.case-wide img{width:100%;height:auto}
.case-wide figcaption,.case-films figcaption{padding:15px 0;font-size:11px;line-height:1.5}
.case-films{display:grid;grid-template-columns:1.5fr 1fr;gap:35px;align-items:start}
.case-films video{width:100%;height:430px;object-fit:contain;background:#090c0a}
.case-note{max-width:740px;margin:30px 0 0 auto;font-size:14px;color:var(--muted)}
.case-result{max-width:740px;margin:55px 0 0 auto}
.case-result h3{margin-bottom:20px}
.case-result p{font-size:15px}
.case-next h2{margin:24px 0 28px}
.case-next>p:not(.eyebrow){max-width:630px}
.case-next .actions{margin:32px 0 20px}
@media(max-width:760px){
 .enhanced .story-frame{max-height:none}
 .film-status{position:static;order:3;align-self:stretch;max-width:none;margin:8px 0;font-size:11px}
 .application-return{display:block;min-height:44px;padding:0 0 16px;font-size:11px;text-decoration:underline;text-underline-offset:4px}
 .case-opening{padding-top:24px}
 .case-opening-grid{display:flex;flex-direction:column;gap:24px;align-items:stretch}
 .case-opening-grid>div{display:contents}
 .case-opening-grid h1{order:0}
 .case-opening-grid figure{order:1}
 .case-opening-grid .case-intro{order:2;margin-top:0}
 .case-opening>.eyebrow{margin-top:30px;font-size:9px}
 .case-opening h1{font-size:clamp(47px,12vw,70px)}
 .case-intro{font-size:16px}
 .case-facts{gap:22px 30px;margin-top:28px}
 .case-facts dd{font-size:12px}
 .case-nav{gap:12px 20px;font-size:11px}
 .case-films{display:block}
 .case-films figure+figure{margin-top:32px}
 .case-films video{height:auto;aspect-ratio:16/9}
 .case-films .angle-film video{aspect-ratio:9/16;max-height:65svh}
 .case-result{margin-top:30px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.proof-card:hover img,.proof-card:focus-visible img{transform:none}}