@charset "UTF-8";
:root{--ink:#142024;--paper:#eeede8;--red:#b4263e;--line:#c9cbc5}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);background:var(--paper);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--red);outline-offset:6px}header{height:102px;padding:25px 4.5%;display:flex;align-items:center;justify-content:space-between;background:#fff;position:sticky;top:0;z-index:5;border-bottom:1px solid #ddd}.logo{width:250px;height:auto;display:block}nav{display:flex;gap:38px;align-items:center;font-size:14px}nav a:hover,.text-link:hover{color:var(--red)}nav a:last-child{margin-left:24px}nav span{margin-left:14px}.menu-toggle{display:none}.skip{position:fixed;top:-100px;left:20px;background:white;padding:15px;z-index:20}.skip:focus{top:10px}.hero{padding:28px 4.5% 0}.hero-top,.hero-bottom{display:flex;justify-content:space-between;font-size:10px;letter-spacing:1.8px}.hero-top{padding-bottom:24px;border-bottom:1px solid var(--line)}.hero-body{display:grid;grid-template-columns:1fr 1.05fr;min-height:610px;align-items:center;gap:4%}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:500;line-height:1.6}.hero-copy{padding:55px 0}h1{font-size:clamp(60px,7.5vw,116px);font-weight:400;line-height:.98;letter-spacing:-6px;margin:26px 0 32px}em{font-family:Georgia,'Times New Roman',serif;font-weight:400}h1 em{color:var(--red)}.hero-copy>p:not(.eyebrow){font-size:17px;line-height:1.65}.round-link{display:inline-flex;align-items:center;gap:16px;font-size:13px;margin-top:24px}.circle{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--ink);border-radius:50%;font-size:21px;transition:background .2s}.round-link:hover .circle{background:var(--ink);color:#fff}.architecture{height:520px;background:#dad9d0;position:relative;overflow:hidden;isolation:isolate;background-image:linear-gradient(0deg,transparent 49.8%,#a6ada130 50%,transparent 50.2%),linear-gradient(90deg,transparent 49.8%,#a6ada130 50%,transparent 50.2%);background-size:70px 70px}.sun{position:absolute;width:170px;height:170px;border-radius:50%;background:#eeede2;top:45px;right:40px}.building{position:absolute;box-shadow:25px 35px 45px #26312d24}.back{width:50%;height:72%;right:-6%;bottom:0;background:linear-gradient(100deg,#949e95,#bec2b4);transform:skewY(-17deg)}.front{width:67%;height:65%;left:2%;bottom:-8%;transform:skewY(12deg);background:repeating-linear-gradient(90deg,#f3f1e5 0px,#f3f1e5 29px,#b7b9ab 30px,#deded1 34px)}.front:after{content:'';position:absolute;inset:24% 18% 13%;background:linear-gradient(100deg,#25322e,#697268);box-shadow:inset 14px 0 0 #c4c8b7}.red-plane{position:absolute;width:8%;height:65%;left:58%;top:20%;background:#9f3b44;transform:skewY(-17deg);box-shadow:12px 7px 0 #6b3038}.stairs{position:absolute;right:-2%;bottom:0;width:45%;height:26%;background:repeating-linear-gradient(0deg,#8e998b 0px,#8e998b 13px,#c2c6b5 14px,#c2c6b5 24px);clip-path:polygon(0 100%,0 85%,12% 85%,12% 70%,26% 70%,26% 55%,40% 55%,40% 40%,54% 40%,54% 25%,68% 25%,68% 10%,100% 10%,100% 100%)}.drawing-label,.drawing-number{position:absolute;font-size:8px;letter-spacing:2px;top:20px;left:20px}.drawing-number{top:auto;bottom:20px;left:20px;color:white}.hero-bottom{border-top:1px solid var(--line);padding:21px 0;letter-spacing:.3px;font-size:11px}.hero-bottom a span{margin-left:28px}.section{padding:105px 4.5%}.section-heading{display:grid;grid-template-columns:1fr 2.1fr;gap:5%}h2{font-weight:400;font-size:clamp(32px,3.6vw,54px);line-height:1.15;letter-spacing:-1.8px;margin:0 0 55px}h3{font-weight:400}p{line-height:1.65}.projects{background:#fafaf7}.projects-pending{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0;display:grid;grid-template-columns:1fr 2fr 1fr;gap:35px;align-items:center}.projects-pending[hidden]{display:none}.pending-mark{font-size:90px;font-weight:100;color:#949d92}.projects-pending h3{font-size:25px;letter-spacing:-.5px;margin:0 0 16px}.projects-pending p{font-size:15px;max-width:450px;color:#59605b}.text-link{font-size:12px;display:inline-block;border-bottom:1px solid;padding-bottom:8px;margin-top:12px}.small-label{font-size:9px;letter-spacing:1.5px;justify-self:end;color:#626a61}.agency-body{display:grid;grid-template-columns:1fr 1fr;gap:12%}.lead{font-size:26px;line-height:1.4;letter-spacing:-.6px}.prose{max-width:580px;font-size:15px}.prose p:first-child{margin-top:0}.timeline{display:grid;grid-template-columns:repeat(3,1fr);margin-top:65px;border-top:1px solid var(--line)}.timeline>div{padding-top:27px}.timeline span{font-size:48px;letter-spacing:-2px}.timeline p{font-size:12px}.approach{background:var(--ink);color:#f0f0e9}.approach .eyebrow{color:#b6c0b7}.approach h2{max-width:850px}.approach-list{margin-left:35%}details{border-top:1px solid #ffffff35}details:last-child{border-bottom:1px solid #ffffff35}summary{list-style:none;display:flex;gap:30px;align-items:center;padding:25px 0;cursor:pointer}summary::-webkit-details-marker{display:none}summary>span:first-child{font-size:10px;color:#aebbb2}summary h3{font-size:24px;margin:0;letter-spacing:-.5px}.plus{margin-left:auto;font-size:28px;font-weight:300}details[open] .plus{transform:rotate(45deg)}details p{max-width:630px;margin:0 35px 30px 45px;font-size:15px;color:#c1cbc3}.contact h2{font-size:clamp(38px,5.5vw,80px);margin:45px 0}.contact h2 em{color:var(--red)}.contact-email{font-size:clamp(19px,3.4vw,46px);letter-spacing:-1px;border-bottom:1px solid var(--ink);padding-bottom:16px;display:flex;justify-content:space-between}.contact-bottom{display:grid;grid-template-columns:1fr 1fr 1fr;gap:40px;margin-top:55px}.contact-bottom h3{font-size:20px}.contact-bottom p,.contact-bottom a{font-size:13px}.contact-note{justify-self:end}footer{border-top:1px solid var(--line);padding:25px 4.5%;display:flex;justify-content:space-between;font-size:10px;gap:20px}.plain-button{border:0;background:none;padding:0;font-size:10px}dialog{border:0;background:#fafaf7;color:var(--ink);padding:65px 45px 40px;width:min(720px,90vw);max-height:85vh;overflow:auto}dialog::backdrop{background:#10191dc9}dialog h2{font-size:35px;margin:20px 0}dialog p{font-size:15px}.close-dialog{position:absolute;right:18px;top:12px;border:0;background:none;font-size:34px}dialog a{text-decoration:underline}.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:35px}.filters[hidden]{display:none}.filters button{border:1px solid var(--line);background:none;padding:10px 20px;border-radius:30px}.filters button[aria-pressed=true]{background:var(--ink);color:white}.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px 25px}.project-card{border:0;background:none;text-align:left;padding:0}.project-card img{width:100%;aspect-ratio:4/3;object-fit:cover}.project-card h3{font-size:25px;margin-top:8px}.project-card .eyebrow{margin-top:20px}#project-detail>img{width:100%;height:auto}dl{display:grid;grid-template-columns:1fr 2fr;gap:12px;font-size:13px}dd{margin:0}
@media(min-width:1600px){.hero,.section,header,footer{padding-left:max(4.5%,calc((100vw - 1500px)/2));padding-right:max(4.5%,calc((100vw - 1500px)/2))}}
@media(max-width:850px){header{height:85px}.logo{width:205px}.menu-toggle{display:flex;gap:20px;border:0;background:none;font-size:13px}.menu-toggle span{font-size:20px}nav{display:none;position:absolute;top:84px;left:0;right:0;background:#fff;padding:35px 6%;border-bottom:1px solid var(--line)}nav.open{display:flex;flex-direction:column;align-items:flex-start;gap:25px}nav a:last-child{margin-left:0}.hero-body{min-height:480px}.architecture{height:410px}h1{letter-spacing:-3px;font-size:65px}.hero-copy{padding:40px 0}.hero-copy>p:not(.eyebrow){font-size:14px}.section{padding-top:75px;padding-bottom:75px}.section-heading{display:block}.section-heading>.eyebrow{margin-bottom:28px}.approach-list{margin-left:0}.projects-pending{grid-template-columns:70px 1fr}.small-label{grid-column:2;justify-self:start}.agency-body{gap:7%}.lead{font-size:22px}}
@media(max-width:560px){html{scroll-padding-top:85px}header{padding-left:6%;padding-right:6%}.logo{width:185px}.hero,.section{padding-left:6%;padding-right:6%}.hero-top{font-size:8px;letter-spacing:1px;gap:20px}.hero-top>span:first-child{max-width:180px}.hero-body{display:flex;flex-direction:column;align-items:stretch;gap:0}.hero-copy{padding:35px 0}.hero-copy>.eyebrow{display:none}h1{font-size:70px;margin-top:0;margin-bottom:25px}.hero-copy>p:not(.eyebrow){font-size:15px}.round-link{margin-top:15px}.architecture{height:340px}.hero-bottom{margin-top:22px;font-size:10px;gap:25px;line-height:1.6}.hero-bottom>span{max-width:230px}.hero-bottom a{white-space:nowrap}.hero-bottom a span{margin-left:5px}.section{padding-top:60px;padding-bottom:60px}h2{font-size:34px;letter-spacing:-1.2px;margin-bottom:35px}.projects-pending{grid-template-columns:1fr;padding:25px 0;gap:10px}.pending-mark{font-size:55px}.small-label{grid-column:1;margin-top:20px}.agency-body{grid-template-columns:1fr;gap:15px}.lead{margin-top:0}.timeline{margin-top:30px;gap:15px}.timeline span{font-size:32px}.timeline p{font-size:10px}summary{gap:15px}summary h3{font-size:19px}details p{margin-left:28px;margin-right:0;font-size:14px}.contact-bottom{grid-template-columns:1fr 1fr;gap:22px}.contact-note{grid-column:1/-1;justify-self:start}.contact h2{font-size:41px}.contact-email{font-size:21px;letter-spacing:-.5px}footer{flex-wrap:wrap;line-height:1.5;padding:25px 6%;font-size:9px}.plain-button{font-size:9px}dialog{padding:55px 25px 25px}.project-grid{grid-template-columns:1fr}dl{grid-template-columns:1fr}dd{margin-bottom:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Confort tactile sur iPhone/iPad et défilement des fenêtres dans Safari. */
button{-webkit-appearance:none;appearance:none}
.menu-toggle{min-height:44px;align-items:center}
.close-dialog{min-width:44px;min-height:44px;line-height:1}
dialog{overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
@supports(height:100dvh){dialog{max-height:85dvh}}
@media(pointer:coarse){
 nav a{display:flex;align-items:center;min-height:44px}
 .filters button,.plain-button{min-height:44px}
 footer a,.contact-bottom a{display:inline-flex;align-items:center;min-height:44px}
 .text-link{padding-top:12px;padding-bottom:12px}
}
@media(max-height:500px) and (max-width:850px){nav.open{max-height:calc(100vh - 85px);overflow-y:auto;gap:8px;padding-top:12px;padding-bottom:12px}}

.expertise{margin-top:60px;padding-top:32px;border-top:1px solid var(--line)}
.expertise-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;margin-top:25px}
.expertise-grid h3{font-size:23px;line-height:1.25;letter-spacing:-.5px;margin:0 0 18px}
.expertise-grid p,.expertise-note{font-size:14px;line-height:1.75}
.expertise-note{max-width:760px;margin-top:28px;color:#59605b}
@media(max-width:850px){.expertise-grid{grid-template-columns:1fr;gap:22px}.expertise-grid h3{margin-bottom:10px}.expertise-grid p{margin-top:0}}

nav{gap:22px}nav a:last-child{margin-left:8px}
.hero-project{display:block;position:relative;min-width:0;height:520px;background:#cad2c9;overflow:hidden}
.hero-project>img{width:100%;height:100%;object-fit:cover;object-position:45% center;display:block;transition:transform .6s}
.hero-project:hover>img{transform:scale(1.025)}
.hero-project-caption{position:absolute;bottom:0;left:0;right:0;padding:65px 24px 24px;background:linear-gradient(transparent,#102025d9);color:white;display:flex;justify-content:space-between;align-items:end;font-size:10px;letter-spacing:1.4px;line-height:1.8}
.hero-project-caption strong{font-size:13px;font-weight:400;letter-spacing:.2px}.hero-project-caption>span:last-child{font-size:32px}
.portfolio-intro{max-width:750px;margin:0 0 35px auto;font-size:16px}.project-status,.image-caption{font-size:11px;color:#59605b;line-height:1.5}
.project-grid{row-gap:45px}.project-card img{transition:filter .2s}.project-card:hover img{filter:brightness(.94)}
.project-card h3{margin-bottom:9px}.project-status{margin:0}
.timeline{grid-template-columns:repeat(4,1fr);gap:20px}
.news{background:#fafaf7}.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.news-card{min-width:0}.news-card>img{display:block;width:100%;aspect-ratio:3/2;object-fit:cover}.news-card h3{font-size:25px;line-height:1.2;margin:15px 0}.news-card>p:not(.eyebrow){font-size:14px;white-space:pre-line}.news-project-button{display:block;background:none;border:0;border-bottom:1px solid;padding-left:0;padding-right:0}
#project-dialog{width:min(1000px,94vw)}#project-detail>img{max-height:55vh;object-fit:contain}.image-caption{margin:6px 0 24px}
@media(max-width:1000px) and (min-width:851px){.logo{width:210px}nav{gap:16px;font-size:12px}nav a:last-child{margin-left:0}}
@media(max-width:850px){.hero-project{height:410px}.news-grid{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:1fr 1fr}.portfolio-intro{margin-left:0}}
@media(max-width:560px){.hero-project{height:340px}.news-grid{grid-template-columns:1fr}.timeline{gap:20px}.hero-project-caption{padding:60px 18px 18px}}

.social-links{margin:24px 0 0;font-size:14px}.social-links a{display:inline-flex;align-items:center;min-height:44px;border-bottom:1px solid var(--line)}.social-links a:hover{color:var(--red)}

.social-links{display:flex;flex-wrap:wrap;column-gap:28px;row-gap:8px}

.environment{margin-top:75px;padding-top:40px;border-top:1px solid var(--line)}
.environment-title{font-size:clamp(32px,4vw,58px);font-weight:400;line-height:1.12;letter-spacing:-1.5px;margin:25px 0}
.environment-intro{max-width:850px;font-size:18px;line-height:1.7;margin-bottom:40px}
.environment-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}
.environment-grid figure{margin:0 0 28px}.environment-grid img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}.environment-grid figcaption{font-size:10px;line-height:1.6;color:#59605b;margin-top:8px}
.environment-grid h4{font-weight:400;font-size:25px;letter-spacing:-.5px;line-height:1.2;margin:16px 0}.environment-grid p:not(.eyebrow){font-size:14px;line-height:1.75}
.environment-example{padding-top:16px;border-top:1px solid var(--line);color:#4e5c51}
.environment-project{background:transparent;border:0;border-bottom:1px solid;padding-left:0;padding-right:0;min-height:44px;text-align:left}
.training-themes{margin-top:40px;padding:28px 32px;background:#dfe4da}.training-themes h4{font-size:20px;font-weight:400;margin:0 0 14px}.training-themes p{font-size:14px;max-width:950px}
.news-social{margin:-15px 0 40px;padding-bottom:25px;border-bottom:1px solid var(--line)}.news-social>p{font-size:14px}.news-social .social-links{margin-top:10px}
@media(max-width:850px){.environment-grid{grid-template-columns:1fr}.environment-grid article{margin-bottom:20px}.environment-grid img{max-height:420px}.environment-intro{font-size:16px}.training-themes{padding:24px}.environment{margin-top:45px}}

/* Présentation sobre des engagements : proportions et texte allégés. */
.environment-title{font-size:clamp(28px,2.8vw,40px);letter-spacing:-1px;max-width:760px}
.environment-intro{font-size:16px;max-width:820px;margin-bottom:32px}
.environment-grid img{aspect-ratio:3/2}
.environment-grid figure{margin-bottom:20px}
.environment-grid h4{font-size:21px;margin:12px 0}
.training-note{font-size:12px;line-height:1.7;color:#59605b;max-width:850px;margin:30px 0 0;padding-top:20px;border-top:1px solid var(--line)}

.project-count{font-size:11px;color:#59605b;margin:0 0 24px}.project-more{display:block;margin:45px auto 0;padding:15px 25px;min-height:44px;border:1px solid var(--ink);background:transparent}.project-more:hover{background:var(--ink);color:white}.project-more[hidden]{display:none}
.project-gallery{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px}.project-gallery figure{margin:0}.project-gallery img{width:100%;height:auto;display:block}.project-gallery figcaption{font-size:13px;margin-top:8px;color:#555}@media(max-width:600px){.project-gallery{grid-template-columns:1fr}}

/* Accueil photographique plein écran. */
.carousel{position:relative;height:calc(100vh - 102px);height:calc(100svh - 102px);min-height:520px;background:#142024;color:white;overflow:hidden}.carousel-images,.carousel-slide,.carousel-shade{position:absolute;inset:0}.carousel-slide[hidden]{display:none}.carousel-slide img{display:block;width:100%;height:100%;object-fit:cover}.carousel-shade{pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,.38),transparent 45%,rgba(0,0,0,.74))}.carousel-heading{position:absolute;top:7%;left:4.5%;pointer-events:none}.carousel-heading p{font-size:11px;letter-spacing:2px}.carousel-heading h1{font-size:clamp(30px,3.8vw,60px);font-weight:400;letter-spacing:-1.7px;margin:15px 0;line-height:1.1}.carousel-bottom{position:absolute;left:4.5%;right:4.5%;bottom:70px;display:flex;align-items:end;justify-content:space-between;gap:40px}.carousel-caption{max-width:70%}.carousel-caption h2{font-size:clamp(25px,3vw,42px);margin:0 0 12px;letter-spacing:-1px}.carousel-caption p{font-size:14px;margin:0 0 12px}.carousel-caption button{background:none;border:0;border-bottom:1px solid #ffffff80;color:white;padding:10px 0;min-height:44px;font-size:12px}.carousel-controls{flex-shrink:0}.carousel-buttons{display:flex;align-items:center;gap:10px}.carousel-buttons button{background:#0004;color:white;border:1px solid #ffffff60;min-width:44px;min-height:44px;font-size:20px}.carousel-buttons #slide-pause{font-size:11px;padding:0 12px}.carousel-buttons span{font-size:11px;min-width:45px;text-align:center}#slide-dots{display:flex;justify-content:flex-end;gap:4px;margin-top:12px;flex-wrap:wrap;max-width:250px}#slide-dots button{width:24px;height:24px;border:0;background:transparent;position:relative}#slide-dots button:after{content:'';position:absolute;left:8px;top:8px;width:6px;height:6px;border:1px solid white;border-radius:50%}#slide-dots button[aria-pressed=true]:after{background:white}.carousel-explore{position:absolute;bottom:12px;left:calc(50% - 22px);width:44px;height:44px;text-align:center;line-height:44px;font-size:24px}.carousel [hidden]{display:none!important}.carousel :focus-visible{outline:2px solid white;outline-offset:4px}
@media(max-width:850px){.carousel{height:calc(100vh - 85px);height:calc(100svh - 85px);min-height:520px}.carousel-bottom{gap:20px}.carousel-caption{max-width:60%}}
@media(max-width:560px){.carousel-heading{left:6%;top:6%}.carousel-heading h1{font-size:32px;letter-spacing:-1px}.carousel-bottom{left:6%;right:6%;bottom:62px;display:block}.carousel-caption{max-width:100%}.carousel-caption h2{font-size:28px}.carousel-caption p{font-size:12px;max-width:90%}.carousel-controls{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:20px}#slide-dots{margin:0;max-width:100px}.carousel-buttons{gap:6px}.carousel-buttons button{min-width:40px}.carousel-buttons span{min-width:40px}}

/* Logo ancré à gauche, avec retour à l’accueil. */
header{padding-left:24px}.brand-home{display:block;flex-shrink:0}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:560px){header{padding-left:16px}}