:root{--navy:#111e2b;--blue:#0076c7;--blue-dark:#03558b;--paper:#f6f8fa;--line:#d2d9df;--muted:#61707b;--max:1350px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;background:#fff;color:var(--navy);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.shell{width:min(var(--max),calc(100% - 100px));margin:auto}.mini{font-size:12px;letter-spacing:.18em;font-weight:800;text-transform:uppercase;color:var(--blue)}.thin-rule{height:3px;background:var(--blue);width:48px;margin:19px 0 21px}.primary,.secondary{display:inline-flex;justify-content:space-between;align-items:center;gap:25px;min-height:49px;padding:0 23px;text-transform:uppercase;letter-spacing:.12em;font-size:11px;font-weight:800;transition:.2s;border:1px solid var(--navy)}.primary{background:#075781;border-color:#075781;color:white}.primary:hover{background:var(--navy);border-color:var(--navy)}.secondary{background:transparent;color:var(--navy)}.secondary:hover{background:#eef4f8}.chev{font-size:20px;font-weight:400;line-height:1}
.header{height:88px;position:relative;z-index:3;background:linear-gradient(110deg,#fff 4%,#edf5fd 70%,#e7f1fa);border-bottom:1px solid #ebedf0}.head-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;gap:15px;align-items:center;flex-shrink:0}.brand img{width:54px;height:auto}.brand-name{font-weight:700;font-size:22px;letter-spacing:.30em;white-space:nowrap}.brand-name span{font-weight:400}.nav{display:flex;align-items:center;gap:30px}.nav a{font-size:11px;letter-spacing:.16em;font-weight:700;white-space:nowrap}.nav a:hover,.nav a.active{color:var(--blue)}.nav a.active:after{content:'';display:block;margin:11px auto -14px;width:28px;height:2px;background:var(--blue)}.head-cta{border:1px solid var(--blue);padding:14px 20px;font-size:11px;letter-spacing:.13em;font-weight:800;white-space:nowrap;display:flex;gap:22px;align-items:center}.head-cta:hover{background:var(--blue);color:#fff}.menu-toggle{display:none;appearance:none;background:none;border:1px solid var(--line);padding:10px;font-size:24px}
.hero{position:relative;line-height:0;background:#e7f0f7}.hero-art{width:100%;height:auto}.hero-mobile{display:none}.service-row{background:#fff;display:grid;grid-template-columns:repeat(5,1fr);padding:39px max(40px,calc((100% - var(--max))/2)) 37px;box-shadow:0 1px 12px #172d3b08}.service{min-height:77px;border-right:1px solid #c7ced3;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;text-align:center}.service:last-child{border:0}.service svg{height:39px;width:39px;stroke:#152634;fill:none;stroke-width:1.7;stroke-linejoin:round;stroke-linecap:round}.service span{font-size:12px;font-weight:700;letter-spacing:.20em;text-transform:uppercase;line-height:1.5}
.intro{background:linear-gradient(115deg,#fff 0%,#f1f3f6 100%);padding:77px 0 69px}.intro-grid{display:grid;grid-template-columns:44% 56%;align-items:center}.intro h1{font-size:clamp(38px,4.1vw,66px);letter-spacing:-.025em;line-height:.98;margin:16px 0 0;font-weight:850}.intro p{color:#52616a;max-width:510px;line-height:1.7;font-size:16px;margin:0 0 28px}.intro-actions{display:flex;gap:15px;flex-wrap:wrap}.promises{border-left:1px solid #bcc8d3;margin-left:30px;padding:45px 0 45px 45px;display:grid;grid-template-columns:repeat(3,1fr)}.promise{padding:10px 16px;text-align:center;border-right:1px solid var(--line)}.promise:last-child{border:0}.promise strong{font-size:32px;display:block;margin-bottom:12px;line-height:1.12}.promise span{font-size:11px;line-height:1.7;letter-spacing:.1em;text-transform:uppercase}
.expertise{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding:0 18px}.exp-card{height:390px;overflow:hidden;position:relative;color:#fff;background:#152330}.exp-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.exp-card:hover img{transform:scale(1.06)}.exp-card:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,19,29,.92),rgba(7,19,29,.08) 85%)}.exp-text{position:absolute;z-index:1;bottom:27px;left:32px;right:30px}.num{font-size:12px;letter-spacing:.14em}.num:after{content:'';display:block;height:1px;background:#fff;width:45px;margin:10px 0 15px}.exp-text h2{font-size:27px;line-height:1.05;letter-spacing:-.02em;margin:0 0 10px}.exp-text p{font-size:11px;line-height:1.5;letter-spacing:.08em;text-transform:uppercase;margin:0 0 19px}.exp-text a{font-size:11px;letter-spacing:.12em;border-bottom:1px solid #9cb3c2;padding-bottom:5px;font-weight:800}
.projects{padding:75px 0 81px;background:#fff}.projects-grid{display:grid;grid-template-columns:27% 1fr;gap:36px}.projects h2{font-size:clamp(27px,2.7vw,39px);line-height:1.07;letter-spacing:.03em;margin:0;text-transform:uppercase}.projects p{max-width:300px;font-size:14px;line-height:1.6;color:#5f6a73;margin:0 0 23px}.project-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.project{height:286px;background:#0f2636;position:relative;overflow:hidden;color:#fff}.project img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.project:hover img{transform:scale(1.05)}.project:after{content:'';position:absolute;inset:25% 0 0;background:linear-gradient(0deg,#091b2aec,transparent)}.project-text{position:absolute;z-index:1;left:17px;right:17px;bottom:17px}.project-text h3{margin:0 0 6px;font-size:13px;line-height:1.4;text-transform:uppercase;letter-spacing:.025em}.project-text p{margin:0;color:#e4eaf0;font-size:12px}.visual-note{margin-top:14px!important;font-size:11px!important;color:#7a8792!important}
.cta{background:radial-gradient(circle at 90% 0%,#1e4156,#0c1f2d 72%);color:#fff;padding:65px 0}.cta-layout{display:grid;grid-template-columns:30% 70%;gap:24px;align-items:center}.cta h2{font-size:clamp(28px,3vw,42px);line-height:1.05;letter-spacing:.06em;margin:0}.cta p{font-size:14px;line-height:1.55;max-width:300px;color:#dae5eb}.cta .secondary{background:#fff;color:#152331;border:0;margin-top:4px}.steps{display:grid;grid-template-columns:repeat(4,1fr)}.step{border-left:1px solid #4b5e69;padding:10px 12px;text-align:center}.step svg{width:39px;height:39px;stroke:#fff;fill:none;stroke-width:1.5;margin-bottom:13px}.step span{display:block;text-transform:uppercase;letter-spacing:.14em;font-size:11px;line-height:1.7;font-weight:700}
.contact{background:#f5f8fa;padding:86px 0}.contact-grid{display:grid;grid-template-columns:40% 1fr;gap:70px}.contact h2{font-size:clamp(32px,3.1vw,46px);line-height:1.1;margin:16px 0 20px}.contact p{color:#5d6b76;line-height:1.65}.contact-links{display:grid;gap:18px;margin:25px 0}.contact-links a{font-size:18px;font-weight:700}.form-card{background:#fff;border:1px solid #dce4e9;box-shadow:0 14px 40px #1a304411;padding:31px}.form-title{font-size:21px;font-weight:800;margin:0 0 10px}.form-card p{font-size:13px;margin:0 0 20px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:15px}.field label{font-size:12px;font-weight:700}.field input,.field textarea,.field select{width:100%;border:1px solid #cbd7df;background:#f9fbfc;padding:13px 12px;border-radius:0;min-height:47px}.field textarea{resize:vertical;min-height:108px}.form-status{font-size:13px;margin-top:12px}.footer{background:#fff;padding:46px 0}.footer-grid{display:grid;grid-template-columns:1.5fr 1.6fr 1fr 1fr;gap:40px}.footer-grid>*:not(:first-child){border-left:1px solid #d6dde2;padding-left:30px}.footer .brand img{width:48px}.footer .brand-name{font-size:16px}.footer small{display:block;color:#71808a;font-size:11px;line-height:1.7;margin-top:15px}.footer .links{display:flex;flex-direction:column;gap:13px;font-size:13px}.footer p{font-size:13px;line-height:1.9;margin:0}.footer-bottom{border-top:1px solid #e0e6eb;padding-top:20px;margin-top:32px;color:#7b8791;font-size:11px;line-height:1.6}
@media(max-width:1120px){.shell{width:min(var(--max),calc(100% - 54px))}.nav{gap:17px}.nav a{font-size:9px}.brand-name{font-size:18px}.head-cta{font-size:10px;padding:12px}.intro-grid{grid-template-columns:1fr}.promises{margin:55px 0 0;padding:20px 0 0;border:0;border-top:1px solid #bac5cc}.projects-grid{grid-template-columns:1fr}.projects p{max-width:560px}.contact-grid{gap:30px}}
@media(max-width:760px){.header{height:72px}.shell{width:calc(100% - 38px)}.brand img{width:44px}.brand-name{font-size:16px;letter-spacing:.16em}.menu-toggle{display:block}.head-cta{margin-left:auto;padding:11px 12px;font-size:9px;gap:7px}.nav{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;box-shadow:0 12px 30px #20324130;padding:20px 28px;flex-direction:column;align-items:stretch;gap:20px}.nav.open{display:flex}.nav a{font-size:13px}.nav a.active:after{display:none}.hero-art{display:none}.hero-mobile{display:flex;min-height:550px;position:relative;align-items:center;justify-content:center;flex-direction:column;line-height:1.3;text-align:center;padding:40px 20px;color:#0d202d;background:linear-gradient(90deg,#eff6fbe8,#eff6fb9e),url('facade-mobile.webp') center right/cover no-repeat}.hero-mobile img{width:210px;height:auto;margin:0 auto 12px}.hero-mobile strong{font-size:33px;letter-spacing:.26em;line-height:1.1}.hero-mobile small{font-size:11px;letter-spacing:.2em;margin-top:20px}.hero-mobile .tagline{font-size:15px;letter-spacing:.2em;line-height:1.9;margin-top:70px;text-transform:uppercase}.service-row{padding:25px 12px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px 0}.service{min-height:95px}.service:nth-child(3){border:0}.service svg{width:29px;height:29px}.service span{font-size:9px;letter-spacing:.09em}.intro{padding:64px 0}.intro h1{font-size:40px}.intro p{font-size:14px}.promises{grid-template-columns:repeat(3,1fr);gap:0}.promise{padding:5px 6px}.promise strong{font-size:24px}.promise span{font-size:8px;letter-spacing:.05em}.expertise{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding:0 12px 12px;gap:12px}.exp-card{flex:0 0 min(82vw,360px);height:360px;scroll-snap-align:center}.projects{padding:58px 0}.projects-grid{gap:25px}.project-list{grid-template-columns:1fr;gap:14px}.project{height:250px}.cta{padding:55px 0}.cta-layout{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr);gap:22px 0;padding-top:25px}.contact{padding:65px 0}.contact-grid{grid-template-columns:1fr}.fields{grid-template-columns:1fr;gap:0}.form-card{padding:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>*:not(:first-child){border-left:0;padding-left:0}.footer-bottom{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* ---- pages métiers ---- */
.page-hero{background:radial-gradient(circle at 90% 0%,#1e4156,#0c1f2d 72%);color:#fff;padding:74px 0 70px}
.page-hero .mini{color:#7cc4f0}
.page-hero h1{font-size:clamp(32px,3.6vw,54px);line-height:1.06;letter-spacing:-.02em;margin:16px 0 0;max-width:900px}
.page-hero p{max-width:680px;font-size:16px;line-height:1.7;color:#dae5eb;margin:0 0 28px}
.page-hero .thin-rule{background:#2f9be0}
.page-hero .primary{background:#fff;border-color:#fff;color:#12222f}.page-hero .primary:hover{background:#dbe9f3;border-color:#dbe9f3}
.crumbs{font-size:12px;color:#9fb4c2;margin-bottom:22px}.crumbs a{text-decoration:underline;text-underline-offset:3px}
.block{padding:76px 0}.block.alt{background:#f5f8fa}
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split img{width:100%;height:100%;max-height:440px;object-fit:cover}
.block h2{font-size:clamp(26px,2.6vw,38px);line-height:1.1;letter-spacing:-.01em;margin:14px 0 0}
.block p{color:#52616a;line-height:1.75;font-size:16px;margin:0 0 16px;max-width:640px}
.ticks{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:13px}
.ticks li{position:relative;padding-left:30px;line-height:1.55;font-size:15.5px}
.ticks li:before{content:'';position:absolute;left:0;top:.5em;width:16px;height:3px;background:var(--blue)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.card{background:#fff;border:1px solid #dce4e9;padding:28px 26px}
.card h3{margin:0 0 10px;font-size:17px;line-height:1.3}.card ul{margin:14px 0 0;padding:14px 0 0 18px;border-top:1px solid #e3e9ee;font-size:14px;line-height:1.75;color:#52616a}.block p.wide{max-width:760px}.block p.more{margin:30px 0 0;max-width:none;font-weight:700}.block p.more a{color:var(--blue-dark);border-bottom:1px solid currentColor;padding-bottom:3px}.block.alt .faq details,.faq details{border-color:#cfd8de}.card p{font-size:14.5px;margin:0;line-height:1.65}
.faq{max-width:860px}.faq details{border-top:1px solid var(--line);padding:18px 0}.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:700;font-size:17px;line-height:1.4}.faq details p{margin:12px 0 0;font-size:15px}
.others{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}
.others a{border:1px solid var(--navy);padding:22px 24px;font-weight:800;letter-spacing:.1em;font-size:12px;text-transform:uppercase;display:flex;justify-content:space-between;gap:20px;align-items:center}
.others a:hover{background:#eef4f8}
.page-hero{position:relative;background-color:#0c1f2d;background-repeat:no-repeat;background-position:right center;background-size:auto 100%}
.page-hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#0c1f2d 0%,#0c1f2d 42%,rgba(12,31,45,.78) 66%,rgba(12,31,45,.38) 100%)}
.page-hero .shell{position:relative}
.fi{width:40px;height:40px;fill:none;stroke:var(--navy);stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px;display:block}
.fi .b{stroke:var(--blue)}.fi .f{fill:var(--blue)}
.figure{margin:0;background:#fff;border:1px solid #dce4e9;padding:34px 30px 22px}
.figure .fig{width:100%;height:auto;display:block}.fig text{font-family:inherit}
.figure figcaption{margin-top:16px;padding-top:14px;border-top:1px solid #e3e9ee;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-dark)}
.legend{list-style:none;margin:16px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 18px;counter-reset:lg;font-size:13.5px;color:#52616a}
.legend li{counter-increment:lg;display:flex;gap:9px;align-items:center}.legend li:before{content:counter(lg);flex:0 0 20px;height:20px;border-radius:50%;border:1.2px solid var(--navy);color:var(--navy);font-size:11px;font-weight:700;display:grid;place-items:center}
.mat{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}.mat.three{grid-template-columns:repeat(3,1fr)}
.mat .card{display:flex;flex-direction:column}.sw{width:40px;height:40px;margin-bottom:18px}
.mat .card ul{flex:1}.mat .use{margin:14px 0 0;padding-top:12px;border-top:1px solid #e3e9ee;font-size:13.5px;line-height:1.55}.mat .use b{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-dark);margin-bottom:4px}
.walls{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.walls .card{padding:18px 18px 22px}.walls .fig{width:100%;height:auto;display:block;margin-bottom:16px}
.walls .n{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--blue-dark)}.walls h3{margin:4px 0 8px}
.dsteps{list-style:none;margin:34px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;counter-reset:st;border-top:1px solid #cfd8de}
.dsteps li{counter-increment:st;padding:24px 26px 26px 0;border-bottom:1px solid #cfd8de;font-size:15.5px;line-height:1.55;font-weight:600}
.dsteps li:before{content:counter(st,decimal-leading-zero);display:block;font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--blue);margin-bottom:8px}
.atouts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.aud{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.aud .card{padding:34px 32px}.aud h3{font-size:21px;margin-bottom:6px}.aud .ticks{margin:18px 0 26px}
.aud a.go{font-weight:800;letter-spacing:.12em;font-size:12px;text-transform:uppercase;color:var(--blue-dark);border-bottom:1px solid currentColor;padding-bottom:4px}
.aud .card.dark{background:var(--navy);border-color:var(--navy);color:#fff}.aud .card.dark .fi{stroke:#fff}.aud .card.dark .fi .b{stroke:#7cc4f0}.aud .card.dark .ticks li{color:#dae5eb}.aud .card.dark .ticks li:before{background:#7cc4f0}.aud .card.dark a.go{color:#fff}
@media(max-width:1100px){.cards{grid-template-columns:repeat(2,1fr)}.mat,.walls{grid-template-columns:repeat(2,1fr)}.dsteps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.page-hero{background-size:cover}.page-hero:before{background:rgba(12,31,45,.86)}.mat,.mat.three,.atouts,.aud{grid-template-columns:1fr}.dsteps{grid-template-columns:1fr}.dsteps li{padding-right:0}}
@media(max-width:560px){.walls{grid-template-columns:1fr}.legend{grid-template-columns:1fr}.figure{padding:18px 14px 16px}}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:34px}.cards{grid-template-columns:1fr}.others{grid-template-columns:1fr}.block{padding:56px 0}.page-hero{padding:54px 0}}
@media(max-width:760px){.head-inner{gap:10px}.brand{gap:9px;min-width:0;flex-shrink:1}.head-cta .chev{display:none}.menu-toggle{flex-shrink:0;padding:6px 10px;line-height:1}}@media(max-width:400px){.brand-name{font-size:14px;letter-spacing:.1em}.brand img{width:38px}}