:root{--forest:#10362b;--deep:#0b281f;--moss:#7f956c;--lime:#b9cc8b;--ivory:#f8f6ef;--stone:#e7e6dc;--ink:#17352e;--muted:#64746b;--line:#d7dad1;--body:#fafaf7;--max:1260px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--body);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.6}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}::selection{background:#d4e3ac;color:var(--forest)}:focus-visible{outline:3px solid #c0cf89;outline-offset:4px}.container{max-width:var(--max);padding:0 42px;margin:0 auto}.smallcaps{letter-spacing:.24em;font-size:11px;font-weight:800;text-transform:uppercase;line-height:1.6;margin:0 0 18px}.smallcaps.green{color:#758863}.smallcaps.pale{color:var(--lime)}.display-heading{font-size:clamp(30px,3.6vw,55px);font-weight:700;line-height:1.06;letter-spacing:-.045em;max-width:820px;margin:0 0 26px}.large-body{font-size:clamp(15px,1.3vw,18px);line-height:1.85;color:#4b6158;max-width:780px}.section{padding:116px 0}.accent-line,.tiny-line{display:block;width:68px;height:3px;background:#a3b87b}.tiny-line{width:40px;height:2px}.icon{width:26px;height:26px;object-fit:contain;flex:none}.button{min-height:53px;padding:14px 21px;display:inline-flex;align-items:center;justify-content:space-between;gap:30px;font-size:12px;letter-spacing:.055em;text-transform:uppercase;font-weight:800;border:1px solid transparent;transition:transform .2s,background-color .2s,color .2s}.button:hover{transform:translateY(-2px)}.button .icon{width:17px;height:17px}.button-dark{background:var(--forest);color:white}.button-dark .icon{filter:brightness(0) invert(1)}.button-dark:hover{background:#235440}.button-lime{background:#c0d08e;color:var(--forest)}.button-lime:hover{background:#dfebad}.button-outline{border-color:#b5c1b4;color:var(--forest);background:transparent}.text-link,.inline-arrow{font-size:13px;font-weight:800;display:inline-flex;gap:30px;align-items:center;border-bottom:1px solid #9cab91;padding:13px 0}.text-link span,.inline-arrow span{font-size:20px;line-height:1}.inline-arrow{margin-top:20px}
/* navigation */
.site-header{height:91px;background:#fafaf7;position:relative;z-index:50;border-bottom:1px solid #e2e5dc}.site-header .nav-row{height:100%;display:flex;align-items:center;gap:34px}.brand{font-size:23px;letter-spacing:.12em;font-weight:900;display:inline-flex;align-items:center;gap:10px;color:var(--forest);white-space:nowrap;line-height:1}.brand-light{font-weight:500}.brand img{object-fit:contain}.site-header nav{display:flex;align-items:center;gap:29px;margin-left:auto}.site-header nav a{font-size:12px;font-weight:700;color:#4b6257;padding:35px 0;border-bottom:3px solid transparent;transition:color .2s}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--forest);border-bottom-color:#9eb579}.nav-cta{padding:12px 17px;background:var(--forest);color:#fff;font-size:11px;font-weight:800;white-space:nowrap}.nav-cta span{margin-left:10px;color:var(--lime)}.menu-button{display:none}
/* home hero */
.hero{background:var(--ivory)}.hero-grid{min-height:690px;display:grid;grid-template-columns:47% 53%;padding-right:0;max-width:calc(var(--max) + max(0px,(100vw - var(--max))/2))}.hero-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:75px 58px 65px 0;position:relative}.hero-small{color:#60785f;margin-bottom:30px}.hero-copy .accent-line{margin-bottom:29px}.hero-title{font-size:clamp(47px,5.2vw,82px);line-height:.99;letter-spacing:-.06em;font-weight:700;max-width:650px;margin:0 0 30px}.hero-desc{font-size:clamp(17px,1.65vw,23px);line-height:1.45;max-width:485px;margin:0;color:#465e52}.hero-actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap;margin-top:35px}.hero-footnote{font-size:9px;letter-spacing:.15em;font-weight:700;color:#718679;margin-top:63px}.hero-footnote span{margin:0 6px}.hero-visual{position:relative;overflow:hidden;min-height:650px;background:#344c42}.hero-visual>img{width:100%;height:100%;object-fit:cover;object-position:center}.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 63%,#091c19a6)}.hero-photo-caption{color:#fff;position:absolute;right:42px;bottom:26px;z-index:2;text-transform:uppercase;letter-spacing:.17em;font-size:10px}.hero-shape{position:absolute;top:-120px;right:-130px;width:320px;height:650px;transform:skew(-27deg);background:linear-gradient(180deg,#1c5943ce,#b1c4925c);opacity:.75;mix-blend-mode:multiply}.ticker{background:var(--forest);color:#dfe9df}.ticker-content{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:14px}.ticker-content span{font-size:10px;letter-spacing:.12em;font-weight:800;text-align:center}.ticker-content i{height:4px;width:4px;flex:none;background:var(--lime);border-radius:50%}
/* intro */
.intro-section{background:#f7f7f3}.intro-layout{display:grid;grid-template-columns:25% 75%;gap:30px}.intro-layout .display-heading{max-width:860px}.intro-layout .large-body{max-width:825px}.intro-layout .tiny-line{margin-top:22px}
/* four fields */
.expertises-section{background:#ecefe8}.section-head{display:flex;align-items:end;justify-content:space-between;gap:60px;margin-bottom:36px}.section-head .display-heading{max-width:740px;margin-bottom:0}.section-side{max-width:270px;color:#57685d;font-size:15px}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.service-card{height:485px;background:#244d3f;display:flex;flex-direction:column;position:relative;overflow:hidden;color:#fff;transition:transform .25s,box-shadow .25s;isolation:isolate}.service-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px #173e2b35}.service-card:before{content:"";position:absolute;inset:0;background-image:linear-gradient(180deg,#06191340 0%,#07191515 32%,#05190de8 98%),var(--card-image);background-size:cover;background-position:center;transition:transform .5s;z-index:-1}.service-card:hover:before{transform:scale(1.05)}.service-card-top{display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.13em;padding:21px 20px}.service-arrow{font-size:22px;line-height:1}.service-card-bottom{margin-top:auto;padding:0 20px 24px}.service-card-icon{background:#f5f6eddb;display:flex;align-items:center;justify-content:center;width:54px;height:54px;border-radius:50%;margin-bottom:24px}.service-card-icon .icon{width:31px;height:31px}.service-card h3{font-size:20px;line-height:1.15;letter-spacing:-.035em;margin:0 0 16px;font-weight:800;min-height:48px}.service-card p{font-size:13px;line-height:1.6;color:#dce6db;margin:0}.card-travaux:before{background-position:60% center}.card-international:before{background-image:linear-gradient(180deg,#03191377,#041c16da),var(--card-image)}
/* approach preview */
.approach-preview{background:#faf9f5}.approach-grid{display:grid;grid-template-columns:48% 52%;gap:0;align-items:stretch}.approach-photo{min-height:580px;overflow:hidden}.approach-photo img{height:100%;width:100%;object-fit:cover}.approach-copy{background:#f0f1e8;padding:75px 65px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.approach-copy .display-heading{font-size:clamp(31px,3.4vw,48px)}.approach-steps{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0 34px;width:100%}.approach-steps span{font-size:11px;font-weight:800;letter-spacing:.12em;border-top:1px solid #b8c4b4;padding-top:12px}
/* CTA + footer */
.cta-panel{background:var(--forest);color:#fff;overflow:hidden;position:relative}.cta-inner{position:relative;padding-top:94px;padding-bottom:99px}.cta-title{font-size:clamp(34px,4.6vw,67px);line-height:1.07;letter-spacing:-.045em;max-width:910px;margin:18px 0 22px;position:relative;z-index:2}.cta-text{color:#c8d8c9;font-size:17px;max-width:650px;line-height:1.7;position:relative;z-index:2}.cta-inner .button{margin-top:25px;position:relative;z-index:2}.on-dark{color:var(--lime)}.rule{width:68px;height:1px;background:var(--lime);display:inline-block;vertical-align:middle;margin-left:20px}.cta-lines{position:absolute;border:70px solid #41694d55;transform:rotate(-25deg);width:350px;height:850px;right:-150px;top:-180px;pointer-events:none}.site-footer{background:var(--deep);color:#c4d5ca}.footer-top{display:flex;justify-content:space-between;gap:40px;align-items:end;padding:68px 0 67px}.brand-footer{color:#fff;font-size:29px}.brand-footer img{filter:brightness(0) invert(1)}.footer-top p{font-size:14px;letter-spacing:.04em;line-height:1.8}.footer-bottom{border-top:1px solid #36564a;padding:24px 0 33px;display:flex;justify-content:space-between;gap:20px;font-size:12px}.footer-bottom div{display:flex;flex-wrap:wrap;gap:28px}.footer-bottom a:hover{text-decoration:underline}
/* subpages */
.page-hero{padding:107px 0 112px}.dark-hero{background:var(--forest);color:#fff;position:relative;overflow:hidden}.dark-hero:after{content:"";position:absolute;width:400px;height:900px;transform:rotate(28deg);background:#2b574532;right:3%;top:-340px;pointer-events:none}.page-hero .container{position:relative;z-index:1}.page-hero-title{font-size:clamp(38px,5vw,72px);line-height:1.03;letter-spacing:-.045em;max-width:990px;margin:23px 0 24px}.page-hero-lead{max-width:690px;font-size:17px;line-height:1.75;color:#e1e8df}.page-hero .button{margin-top:22px}.smaller-hero{padding:67px 0 77px}.expertise-list{padding:100px 42px}.expertise-item{display:grid;grid-template-columns:49% 51%;margin-bottom:95px;background:#f1f3ed;min-height:560px}.expertise-item:last-child{margin-bottom:0}.expertise-item.reverse .expertise-photo{order:2}.expertise-photo{overflow:hidden;min-height:550px}.expertise-photo img{width:100%;height:100%;object-fit:cover}.expertise-item:has(#whatever){}.expertise-copy{padding:60px 58px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.expertise-title{font-size:clamp(27px,3vw,43px);line-height:1.07;margin:25px 0 16px;letter-spacing:-.045em}.expertise-subtitle{color:#7a946b;font-size:13px;line-height:1.45;font-weight:800;letter-spacing:.06em;margin:0 0 22px}.expertise-copy .large-body{font-size:15px;line-height:1.8;margin-bottom:24px}.icon-disc{width:64px;height:64px;border:1px solid #cbd7c8;border-radius:50%;display:grid;place-items:center}.icon-disc .icon{width:34px;height:34px}.tag-line{color:#466f57;font-size:12px;font-weight:800;padding-top:16px;border-top:1px solid #becbbe;width:100%}.expertise-copy .inline-arrow{margin-top:24px}.approach-hero{background-image:linear-gradient(90deg,#10362b 40%,#10362be6),url('assets/projets.webp');background-size:cover;background-position:center}.approach-manifeste{display:grid;grid-template-columns:47% 53%;align-items:center;gap:75px}.manifeste-photo{height:600px;overflow:hidden}.manifeste-photo img{height:100%;width:100%;object-fit:cover}.process-section{background:#f0f2ea}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:62px}.step{border-top:1px solid #a5b79c;padding:26px 7px 20px;min-height:280px}.step-no{font-size:13px;color:#7b9271;letter-spacing:.13em}.step-rule{display:block;background:#91af75;height:3px;width:40px;margin:32px 0}.step h3{font-size:24px;letter-spacing:-.04em;margin:0 0 13px}.step p{font-size:14px;color:#65776b;line-height:1.7}
/* contact */
.contact-hero{background:#f5f5ee;padding:95px 0}.contact-hero-grid{display:grid;grid-template-columns:54% 46%;gap:40px;align-items:center}.contact-hero .page-hero-title{font-size:clamp(38px,4.4vw,67px)}.contact-image{height:570px;overflow:hidden}.contact-image img{width:100%;height:100%;object-fit:cover}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}.contact-details .display-heading{margin-bottom:40px}.contact-line{display:flex;align-items:center;gap:22px;border-top:1px solid #d3dbd0;padding:25px 4px;font-size:15px;line-height:1.6}.contact-line .icon{width:26px;height:26px}.right-arrow{margin-left:auto;color:#91a781}.contact-line a:hover{color:#6e8e6e}.form-box{background:#f0f2e9;padding:52px}.form-box h2{font-size:clamp(24px,3vw,37px);line-height:1.1;margin:0 0 14px}.form-box .form-help{font-size:14px;color:#62766a;line-height:1.7}.form-box label{font-size:12px;font-weight:800;display:block;margin:18px 0 6px}.form-box input,.form-box select,.form-box textarea{width:100%;padding:13px 14px;color:#203e32;background:#fff;border:1px solid #cbd6ca;border-radius:0;outline:none;resize:vertical;font-size:14px}.form-box input:focus,.form-box textarea:focus,.form-box select:focus{border-color:#738e6e;box-shadow:0 0 0 2px #bdcfa9}.full-button{width:100%;margin-top:25px}.form-notice{font-size:12px;color:#6a7a6c;line-height:1.6;margin:13px 0 0}
/* legal */
.legal-copy{max-width:910px}.legal-copy h2{font-size:21px;margin:38px 0 10px}.legal-copy p{line-height:1.9;color:#54665b}.legal-copy strong{color:#a75f36}.legal-warning{padding:20px;background:#fff4e6;border-left:3px solid #dfae72;color:#6a5038!important}
/* media */
@media(max-width:1100px){.site-header nav{gap:16px}.nav-cta{display:none}.hero-copy{padding-right:30px}.hero-title{font-size:clamp(45px,5.5vw,67px)}.service-card{height:450px}.service-card h3{font-size:18px}.expertise-copy{padding:36px}.approach-copy{padding:45px}.contact-grid{gap:35px}}
@media(max-width:820px){.container{padding:0 25px}.site-header{height:77px}.menu-button{display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;width:45px;height:42px;border:0;background:transparent}.menu-button span{height:2px;background:var(--forest);width:26px;display:block}.site-header nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fafaf7;border-top:1px solid #e0e5dc;box-shadow:0 12px 25px #18322717;padding:12px 26px 26px;flex-direction:column;gap:0;align-items:stretch}.site-header nav.is-open{display:flex}.site-header nav a{padding:13px 0;border-bottom:1px solid #e1e7dc}.hero-grid{grid-template-columns:1fr;padding-right:25px}.hero-copy{min-height:485px;padding:63px 0}.hero-visual{min-height:430px}.hero-footnote{margin-top:30px}.ticker-content{gap:8px;flex-wrap:wrap;padding-top:19px;padding-bottom:19px}.ticker-content span{font-size:9px}.ticker-content i{display:none}.section{padding:75px 0}.intro-layout{grid-template-columns:1fr;gap:30px}.section-head{display:block}.section-side{max-width:620px}.service-grid{grid-template-columns:1fr 1fr}.service-card{height:440px}.approach-grid{grid-template-columns:1fr}.approach-photo{min-height:370px;max-height:430px}.approach-copy{padding:55px 36px}.expertise-list{padding:70px 25px}.expertise-item{grid-template-columns:1fr;min-height:0;margin-bottom:55px}.expertise-item.reverse .expertise-photo{order:0}.expertise-photo{height:390px;min-height:390px}.expertise-copy{padding:39px}.approach-manifeste{grid-template-columns:1fr;gap:50px}.manifeste-photo{height:400px}.steps-grid{grid-template-columns:repeat(2,1fr)}.contact-hero-grid,.contact-grid{grid-template-columns:1fr}.contact-image{height:340px}.contact-hero{padding:70px 0}.page-hero{padding:75px 0}.smaller-hero{padding:50px 0}.footer-top{align-items:start}.contact-grid{gap:50px}}
@media(max-width:520px){.brand{font-size:19px;letter-spacing:.075em}.brand img{width:29px}.container{padding-left:20px;padding-right:20px}.hero-grid{padding-right:20px}.hero-title{font-size:clamp(44px,10vw,58px)}.hero-visual{min-height:310px}.hero-visual .hero-photo-caption{font-size:8px;right:14px}.hero-copy{min-height:420px;padding:52px 0}.hero-actions{gap:12px}.hero-actions .text-link{padding:10px 0}.hero-small{font-size:10px}.ticker-content{justify-content:center}.ticker-content span{padding:4px 0}.display-heading{font-size:clamp(29px,8vw,42px)}.service-grid{grid-template-columns:1fr;gap:13px}.service-card{height:350px}.service-card h3{min-height:0}.service-card:before{background-position:top center}.section{padding:64px 0}.section-head{margin-bottom:25px}.approach-copy{padding:40px 25px}.approach-steps{gap:11px}.approach-steps span{font-size:10px}.cta-inner{padding:70px 20px 75px}.cta-title{font-size:clamp(31px,9vw,47px)}.footer-top{display:block;padding:46px 0}.footer-bottom{display:block}.footer-bottom div{display:flex;margin-top:14px;gap:12px}.page-hero-title{font-size:clamp(36px,10vw,49px)}.page-hero-lead{font-size:15px}.expertise-list{padding:50px 20px}.expertise-photo{height:290px;min-height:290px}.expertise-copy{padding:28px 23px}.expertise-title{font-size:29px}.manifeste-photo{height:340px}.steps-grid{grid-template-columns:1fr;gap:0;margin-top:24px}.step{min-height:0;padding-bottom:40px}.step-rule{margin:18px 0}.contact-hero{padding:48px 0}.contact-image{height:290px}.contact-grid{gap:36px}.form-box{padding:29px 22px}.contact-line{font-size:13px;gap:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
/* Les colonnes prennent en compte leurs espaces pour ne jamais déborder. */
.intro-layout{grid-template-columns:minmax(0,25fr) minmax(0,75fr)}
.approach-manifeste{grid-template-columns:minmax(0,47fr) minmax(0,53fr)}
.contact-hero-grid{grid-template-columns:minmax(0,54fr) minmax(0,46fr)}
@media(max-width:820px){.intro-layout,.approach-manifeste,.contact-hero-grid{grid-template-columns:minmax(0,1fr)}}