:root{--red:#b8070c;--ink:#22221f;--beige:#f3f0e9;--line:#d9d5cd;--gray:#62625d}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:115px}body{margin:0;background:var(--beige);color:var(--ink);font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible{outline:3px solid var(--red);outline-offset:5px}.skip{position:fixed;left:15px;top:-90px;z-index:100;background:white;padding:15px}.skip:focus{top:10px}.topline{padding:12px 4.5%;display:flex;justify-content:space-between;background:#242422;color:#e8e5dd;font-size:10px;letter-spacing:1.4px}header{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:11px 4.5%;background:#faf9f5;position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line)}.brand{width:125px;flex-shrink:0;display:flex;align-items:center}.brand img{width:100%;height:auto;max-height:79px;object-fit:contain}nav{display:flex;gap:25px;font-size:13px}nav a{padding:12px 0;border-bottom:1px solid transparent}nav a:hover,nav a.active{color:var(--red);border-color:var(--red)}.header-contact{font-size:14px;font-weight:600;white-space:nowrap}.header-contact span{color:var(--red);margin-left:12px}.menu-toggle{display:none}.hero{display:grid;grid-template-columns:1.05fr 1fr;min-height:650px}.hero-copy{padding:68px 6% 30px 8.6%;display:flex;flex-direction:column;align-items:flex-start}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:600;margin:0 0 25px;text-transform:uppercase;line-height:1.6}.eyebrow i{display:inline-block;width:6px;height:6px;background:var(--red);border-radius:50%;margin-right:9px}.hero h1{font-size:clamp(50px,5.6vw,90px);line-height:1.02;font-weight:500;letter-spacing:-4px;margin:0 0 28px}.hero h1 em{font-family:Georgia,serif;font-weight:400;color:var(--red);letter-spacing:-3px}.hero h2{font-size:18px;line-height:1.45;font-weight:500;max-width:420px;margin:0 0 15px}.hero-copy>p:not(.eyebrow){font-size:14px;color:var(--gray);line-height:1.7;max-width:425px;margin:0 0 26px}.actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.button{display:inline-flex;background:var(--red);color:white;padding:17px 23px;font-size:12px;align-items:center;justify-content:space-between;gap:25px;transition:background .2s}.button:hover{background:#89080b}.text-link{font-size:12px;padding:10px 0;border-bottom:1px solid var(--ink)}.text-link:hover{color:var(--red)}.hero-foot{margin-top:auto;padding-top:34px;display:flex;gap:25px;font-size:10px;color:var(--gray)}.hero-art{position:relative;background:#dedbd3;overflow:hidden;min-height:600px}.hero-art>img{width:100%;height:100%;object-fit:cover;display:block}.art-note{position:absolute;bottom:56px;left:34px;padding:21px 25px;background:#f5f2e9ed;border-left:2px solid var(--red)}.art-note span{display:block;font-size:8px;letter-spacing:2px;margin-bottom:10px}.art-note strong{font-size:23px;font-family:Georgia,serif;font-weight:400}.hero-art small{position:absolute;bottom:16px;left:34px;font-size:9px;color:#3d3e37;background:#f3f0e9d9;padding:5px 8px}.ribbon{display:flex;justify-content:space-around;align-items:center;gap:20px;background:var(--red);color:white;padding:24px 4%;font-size:10px;letter-spacing:1.4px}.ribbon i{font-size:18px;font-style:normal}.section{padding:95px 6.5%}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:45px}h2{font-weight:500;font-size:clamp(30px,3vw,48px);letter-spacing:-1.7px;line-height:1.12;margin:0}.section-head>p{max-width:350px;color:var(--gray);font-size:14px;line-height:1.8;margin:0}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.service-card{padding:30px 25px;min-height:270px;border-right:1px solid var(--line);display:flex;flex-direction:column;transition:background .2s}.service-card:first-child{padding-left:0}.service-card:last-child{border-right:0}.service-card:hover{background:#e9e5dc}.card-number{font-size:11px;color:var(--red);margin-bottom:34px}.service-card h3{font-size:22px;line-height:1.2;font-weight:500;letter-spacing:-.7px;margin:0 0 15px}.service-card p{font-size:13px;line-height:1.6;color:var(--gray);margin:0 0 22px}.card-link{margin-top:auto;font-size:11px;display:flex;justify-content:space-between}.card-link b{font-size:21px;font-weight:400;color:var(--red)}.focus{display:grid;grid-template-columns:1fr 1fr;gap:8%;background:#e7e3da}.focus-number{font-size:230px;font-weight:300;line-height:1;color:var(--red);display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid #c9c3b6}.focus-number span{font-size:11px;letter-spacing:5px;margin:0 0 50px}.focus>div>p:not(.eyebrow){font-size:14px;line-height:1.85;color:var(--gray);max-width:470px}.focus h2{margin-bottom:25px}.focus .text-link{display:inline-block;margin-top:15px}.future{background:#faf9f5}.photo-pending{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:45px 35px;background:#efede6}.photo-pending>span{font-size:10px;letter-spacing:2px;color:#6b675f}.photo-pending>div{text-align:center}.photo-pending b{font-size:20px;font-weight:500}.photo-pending p{font-size:13px;color:var(--gray)}.contact{background:var(--red);color:white;padding:80px 6.5%;display:grid;grid-template-columns:1.3fr 1fr;gap:12%}.contact h2{font-size:clamp(30px,3.5vw,52px)}.contact p:not(.eyebrow){font-size:14px;line-height:1.8;max-width:470px;color:#f3d6d6}.contact-right{padding-top:34px}.phone{font-size:clamp(21px,2.7vw,39px);display:block;border-bottom:1px solid #ffffff55;padding-bottom:25px;margin-bottom:25px}.phone:hover{color:#eddbb9}.contact-right>span{font-size:11px;letter-spacing:1px}footer{background:#242422;color:#d6d4cd;padding:40px 6.5%;display:flex;gap:30px;justify-content:space-between;align-items:center;font-size:10px}.footer-name{font-size:17px;letter-spacing:1px;color:white}.footer-name span{display:block;font-size:10px;letter-spacing:0;margin-top:7px;color:#b3b1aa}.page-hero{padding:45px 8% 65px;background:#e9e5dc;border-bottom:1px solid var(--line)}.breadcrumb{font-size:11px;color:var(--gray);margin-bottom:42px}.breadcrumb a:hover{color:var(--red)}.page-hero h1{font-size:clamp(42px,5.5vw,78px);line-height:1.03;letter-spacing:-3px;font-weight:500;max-width:900px;margin:0 0 24px}.page-hero h1 span{color:var(--red)}.page-tagline{font-size:21px;font-family:Georgia,serif;font-style:italic;color:var(--gray);margin:0 0 30px}.article-layout{display:grid;grid-template-columns:250px minmax(0,780px);gap:8%;justify-content:center;align-items:start}.article-layout aside{position:sticky;top:135px}.article-layout aside>a:not(.aside-call){display:block;font-size:12px;color:var(--gray);line-height:1.6;border-top:1px solid var(--line);padding:12px 0}.article-layout aside>a:hover{color:var(--red)}.aside-call{display:block;margin-top:30px;padding:20px;background:#e9e5dc;font-size:12px}.aside-call strong{display:block;margin-top:13px;font-size:16px;color:var(--red)}article p,article li{font-size:16px;color:#52524c;line-height:1.85}article p{margin:15px 0}.article-intro p{font-size:20px;color:var(--ink);line-height:1.65;margin:0 0 45px}.article-section{padding:35px 0;border-top:1px solid var(--line);scroll-margin-top:110px}.article-number{font-size:10px;color:var(--red);letter-spacing:2px}.article-section h2{font-size:29px;letter-spacing:-.8px;line-height:1.25;margin:15px 0 22px}article ul{padding-left:23px}.related{padding-top:60px;border-top:1px solid var(--line)}.related h2{font-size:32px}.related-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:30px}.related-links a{padding:20px;border:1px solid var(--line);font-size:13px}.related-links a:hover{border-color:var(--red);color:var(--red)}.mobile-call{display:none}@media(min-width:1500px){.hero{min-height:740px}.hero-copy{padding-top:95px}header nav{gap:38px}}@media(max-width:1100px){nav{gap:14px;font-size:11px}.header-contact{font-size:12px}.hero-copy{padding-top:45px}.hero h1{letter-spacing:-2.5px}.hero-art{min-height:630px}.service-card{padding:25px 17px}.service-card h3{font-size:19px}.actions{gap:15px}.hero-foot{gap:15px}.article-layout{gap:5%;grid-template-columns:210px minmax(0,1fr)}}@media(max-width:800px){.topline{font-size:8px;padding:10px 5%}.topline span:last-child{display:none}header{padding:9px 5%;gap:15px}.brand{width:100px}.menu-toggle{display:block;background:none;border:0;font-size:12px;cursor:pointer}.menu-toggle span{margin-left:8px}.header-contact{display:none}header nav{display:none;position:absolute;left:0;top:100%;width:100%;padding:20px 5%;background:#faf9f5;border-bottom:1px solid var(--line);font-size:16px;flex-direction:column;gap:4px}header nav.open{display:flex}.hero{grid-template-columns:1fr}.hero-copy{padding:44px 6% 32px}.hero h1{font-size:64px;letter-spacing:-3px}.hero h2{font-size:18px;max-width:100%}.hero-copy>p:not(.eyebrow){max-width:100%}.hero-foot{padding-top:30px}.hero-art{min-height:0;height:450px}.hero-art img{object-position:center 57%}.art-note{bottom:45px;left:6%}.hero-art small{left:6%;font-size:8px}.ribbon{flex-wrap:wrap;gap:16px;padding:20px 6%;font-size:8px}.ribbon i{display:none}.section{padding:60px 6%}.section-head{display:block;margin-bottom:30px}.section-head>p{margin-top:25px;max-width:100%}.service-grid{grid-template-columns:1fr 1fr}.service-card{padding:25px 20px;min-height:240px}.service-card:first-child{padding-left:20px}.service-card:nth-child(2){border-right:0}.service-card:nth-child(-n+2){border-bottom:1px solid var(--line)}.card-number{margin-bottom:25px}.focus{grid-template-columns:1fr;gap:40px}.focus-number{font-size:130px;min-height:210px}.focus-number span{margin-bottom:20px}.focus>div>p:not(.eyebrow){max-width:100%}.photo-pending{padding:35px 14px;gap:10px}.photo-pending b{font-size:16px}.photo-pending p{font-size:12px}.photo-pending>span{font-size:8px;letter-spacing:1px}.contact{padding:55px 6%;grid-template-columns:1fr;gap:15px}.contact-right{padding-top:10px}.phone{font-size:29px}footer{padding:30px 6% 85px;display:block}footer p{line-height:1.8;margin:20px 0}.mobile-call{position:fixed;bottom:12px;left:6%;right:6%;display:block;background:var(--ink);color:white;text-align:center;padding:16px;font-size:13px;z-index:9;box-shadow:0 3px 15px #0003}.page-hero{padding:30px 6% 45px}.breadcrumb{margin-bottom:30px}.page-hero h1{font-size:44px;letter-spacing:-2px}.page-tagline{font-size:19px}.article-layout{display:block}.article-layout aside{position:static;margin-bottom:45px}.article-layout aside>a:not(.aside-call){font-size:13px}.aside-call{display:none}.article-intro p{font-size:18px}.article-section h2{font-size:26px}article p,article li{font-size:15px}.related-links{display:grid;gap:12px}.related h2{font-size:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.crist-wordmark{margin-bottom:35px;font-size:34px;letter-spacing:7px;display:inline-block;font-weight:400;border-bottom:2px solid var(--red);padding-bottom:15px}.crist-wordmark span{display:block;font-size:10px;letter-spacing:4px;margin-top:7px}.crist-hero h1{font-size:clamp(38px,4.7vw,68px)}.crist-contact{background:#e7e3da;display:grid;grid-template-columns:1fr 1fr;gap:8%;scroll-margin-top:110px}.crist-contact>div>p:not(.eyebrow){font-size:14px;line-height:1.8;color:var(--gray);max-width:470px}.crist-details{display:flex;flex-direction:column;justify-content:center}.crist-details>a{display:flex;justify-content:space-between;gap:15px;padding:22px 0;border-bottom:1px solid #c8c2b8;font-size:clamp(15px,2vw,27px);overflow-wrap:anywhere}.crist-details>a:hover{color:var(--red)}.crist-details>a span{color:var(--red)}@media(min-width:801px) and (max-width:1200px){header{gap:15px}header nav{gap:13px;font-size:11px}.header-contact{display:none}}@media(max-width:800px){.crist-contact{grid-template-columns:1fr;gap:20px}.crist-hero h1{font-size:39px}.crist-details>a{font-size:19px}}

.crist-logo{width:380px;max-width:100%;margin:-20px 0 20px}.crist-logo img{display:block;width:100%;height:auto;mix-blend-mode:multiply}@media(max-width:800px){.crist-logo{width:300px;margin:-10px 0 15px}}

/* Center page introductions across desktop and mobile. */
.page-hero{text-align:center;padding-left:6%;padding-right:6%}
.page-hero h1{margin-left:auto;margin-right:auto;max-width:1050px}
.page-hero .eyebrow,.page-hero .page-tagline,.page-hero .breadcrumb{text-align:center}
.crist-logo{margin:-20px auto 20px}
.crist-hero h1{max-width:1100px}
.hero-copy{text-align:center;align-items:center;padding-left:7%;padding-right:7%}
.hero-copy h2,.hero-copy>p:not(.eyebrow){max-width:480px}
.hero-copy .actions,.hero-copy .hero-foot{justify-content:center}
@media(max-width:800px){.crist-logo{margin:-10px auto 15px}.hero-copy{padding-left:6%;padding-right:6%}.hero-copy h2,.hero-copy>p:not(.eyebrow){max-width:100%}}

/* Real Max Toiture project photograph behind the elevation page heading. */
.page-hero.photo-hero{background-color:#262724;background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/surelevation-chantier.webp');background-size:cover;background-position:center 54%;color:#fff;min-height:clamp(480px,43vw,660px);display:flex;flex-direction:column;justify-content:center;align-items:center;padding-top:42px;padding-bottom:65px}
.photo-hero .breadcrumb{color:#ecece8;margin-bottom:40px}
.photo-hero .breadcrumb a{text-decoration:underline;text-underline-offset:3px}
.photo-hero .breadcrumb a:hover{color:#fff}
.photo-hero .eyebrow{color:#fff;text-shadow:0 1px 8px #0008}
.photo-hero h1{color:#fff;max-width:1100px;text-shadow:0 2px 20px #0005}
.photo-hero h1 span{color:#fff}
.photo-hero .page-tagline{color:#fff;text-shadow:0 1px 10px #0008}
.photo-hero .button{background:#b8070c;box-shadow:0 3px 20px #0003;flex-shrink:0}
.photo-hero .button:hover{background:#90090c}
@media(max-width:800px){.page-hero.photo-hero{min-height:490px;padding-top:32px;padding-bottom:48px;background-position:53% center}.photo-hero .breadcrumb{margin-bottom:30px}.photo-hero h1{font-size:clamp(34px,7.5vw,44px)}.photo-hero .page-tagline{font-size:18px}}

.page-hero.extension-photo-hero{background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/extension-chantier.webp');background-position:center 45%}
@media(max-width:800px){.page-hero.extension-photo-hero{background-position:42% center}}

.page-hero.wood-photo-hero{background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/ossature-bois-chantier-eclairci.webp');background-position:center 47%}
@media(max-width:800px){.page-hero.wood-photo-hero{background-position:52% center}}

/* Landscape framing of the original portrait photograph, without distortion. */
.page-hero.roof-photo-hero{background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/couverture-toiture-chantier.webp');background-size:cover;background-position:center 39%}
@media(max-width:800px){.page-hero.roof-photo-hero{background-position:center 42%}}

.realisations-intro{max-width:650px;margin:25px auto 0;font-size:15px;line-height:1.8;color:var(--gray)}.project{max-width:1400px;margin:auto}.project-heading{text-align:center;max-width:980px;margin:0 auto 45px}.project-heading h2{font-size:clamp(27px,3.1vw,42px);line-height:1.2}.project-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:25px}.project-tags span{font-size:10px;border:1px solid var(--line);padding:9px 13px}.compare-tools{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:18px}.compare-tools>span{font-size:10px;letter-spacing:1.5px}.compare-tools>div{display:flex;gap:8px}.compare-tools button{border:1px solid var(--line);background:transparent;padding:10px 13px;font-size:11px;cursor:pointer}.compare-tools button:hover,.compare-tools button[aria-pressed="true"]{background:var(--ink);color:white;border-color:var(--ink)}.comparison{position:relative;aspect-ratio:4/3;overflow:hidden;background:#ddd8ce;isolation:isolate}.comparison>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}.comparison-after{object-position:50% 38%}.comparison-before{object-position:center;clip-path:inset(0 calc(100% - var(--split)) 0 0);z-index:1}.compare-label{position:absolute;top:22px;z-index:2;background:#22221fd9;color:white;padding:9px 14px;font-size:10px;letter-spacing:1.5px;pointer-events:none}.before-label{left:20px}.after-label{right:20px}.compare-divider{position:absolute;left:var(--split);top:0;bottom:0;width:2px;background:white;transform:translateX(-50%);z-index:2;pointer-events:none;box-shadow:0 0 8px #0005}.compare-divider>span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:48px;height:48px;background:white;border-radius:50%;color:var(--red);font-size:25px;box-shadow:0 2px 10px #0003}.compare-range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;z-index:3;cursor:ew-resize;touch-action:pan-y}.comparison:focus-within{outline:3px solid var(--red);outline-offset:5px}.compare-help{color:var(--gray);text-align:center;font-size:11px;line-height:1.7;margin:18px 0 45px}.during-stage{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:8%;background:#e9e5dc;padding:45px}.during-copy h3{font-weight:500;font-size:35px;letter-spacing:-1px;line-height:1.15;margin:0 0 22px}.during-copy>p:not(.eyebrow){font-size:14px;color:var(--gray);line-height:1.8}.during-copy .text-link{display:inline-block;margin-top:15px}.during-stage figure{margin:0}.during-stage img{display:block;width:100%;max-height:620px;object-fit:contain}.during-stage figcaption{font-size:10px;color:var(--gray);line-height:1.6;margin-top:14px;text-align:center}.realisation-preview{display:grid;grid-template-columns:1fr 1fr;background:#e9e5dc;overflow:hidden}.realisation-preview>img{width:100%;height:390px;object-fit:cover;object-position:center 38%}.realisation-preview>div{padding:45px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.realisation-preview h3{font-size:32px;font-weight:500;letter-spacing:-1px;line-height:1.15;margin:25px 0}.realisation-preview:hover .text-link{color:var(--red)}header nav{gap:18px}@media(min-width:801px) and (max-width:1300px){header nav{gap:12px;font-size:11px}.header-contact{display:none}}@media(max-width:800px){.project-heading{margin-bottom:30px}.compare-tools{flex-direction:column;align-items:center;gap:13px}.compare-tools button{font-size:10px;padding:10px}.comparison{aspect-ratio:1/1}.compare-label{top:12px;padding:7px 10px;font-size:9px}.before-label{left:12px}.after-label{right:12px}.compare-divider>span{width:40px;height:40px;font-size:22px}.during-stage{grid-template-columns:1fr;gap:30px;padding:25px}.during-copy h3{font-size:28px}.during-stage img{max-height:540px}.realisation-preview{grid-template-columns:1fr}.realisation-preview>img{height:340px}.realisation-preview>div{padding:30px}.realisation-preview h3{font-size:28px}.compare-help{margin-bottom:30px}header nav{gap:4px}}

/* Compact project rows: before, during, after. */
.project.section{max-width:1500px;padding-top:55px;padding-bottom:55px;border-bottom:1px solid var(--line)}
.project-heading{max-width:1100px;margin-bottom:30px}
.project-heading h2{font-size:clamp(24px,2.4vw,34px)}
.project-heading .eyebrow{margin-bottom:16px}
.project-tags{margin-top:18px}
.project-photo-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.project-photo-row figure{margin:0;min-width:0}
.project-photo-row figcaption{display:flex;align-items:center;gap:10px;padding:13px 0;font-size:12px;font-weight:500;border-top:1px solid var(--line)}
.project-photo-row figcaption span{color:var(--red);font-size:10px}
.project-photo-row img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;object-position:center 35%;display:block}
.project-photo-row figure:first-child img{object-position:center}
@media(max-width:800px){.project.section{padding-top:40px;padding-bottom:40px}.project-photo-row{gap:8px}.project-photo-row figcaption{gap:4px;font-size:9px;line-height:1.5;min-height:43px}.project-photo-row figcaption span{font-size:8px}.project-heading h2{font-size:25px}.project-tags{gap:6px}.project-tags span{font-size:9px;padding:7px 9px}}

#bures-sur-yvette .project-photo-row figure img{aspect-ratio:3/4;object-fit:contain;object-position:center;background:#e9e5dc}

.project-photo-row.project-photo-pair{grid-template-columns:repeat(2,minmax(0,1fr));max-width:1000px;margin:0 auto}.project-photo-pair figure img{aspect-ratio:3/4;object-fit:contain;object-position:center;background:#e9e5dc}

.project-photo-row.project-photo-four{grid-template-columns:repeat(4,minmax(0,1fr))}.project-photo-four figure img{aspect-ratio:3/4;object-fit:contain;object-position:center;background:#e9e5dc}@media(max-width:800px){.project-photo-row.project-photo-four{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}}

#fontenay-aux-roses .project-photo-row figure img{aspect-ratio:3/4;object-fit:contain;object-position:center;background:#e9e5dc}

/* Full photographs in an adaptable roofing gallery. */
.roof-gallery{max-width:1500px;margin:0 auto;padding-top:65px;padding-bottom:65px}.roof-gallery-grid{columns:3;column-gap:24px}.roof-gallery-card{margin:0 0 28px;break-inside:avoid;display:inline-block;width:100%;vertical-align:top}.roof-gallery-card figcaption{padding:13px 0;border-top:1px solid var(--line)}.roof-gallery-card h3{font-size:14px;font-weight:500;line-height:1.5;margin:0}.roof-gallery-card a{display:block}.roof-gallery-card img{display:block;width:100%;height:auto}.roof-gallery-card a:hover{opacity:.92}@media(max-width:1000px){.roof-gallery-grid{columns:2;column-gap:18px}}@media(max-width:520px){.roof-gallery-grid{columns:1}.roof-gallery-card{margin-bottom:24px}.roof-gallery{padding-top:45px;padding-bottom:45px}}

/* Animated architectural model on the homepage. */
.elevation-animation{background:radial-gradient(ellipse at 55% 35%,#faf8f2,#e5e0d5);display:flex;flex-direction:column;padding:28px 30px 20px;min-height:660px;overflow:hidden}.model-topline{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:9px;letter-spacing:1.6px;color:#68665f}.model-badge{border:1px solid #c9c3b7;padding:7px 9px;white-space:nowrap}.model-scene{flex:1;display:flex;align-items:center;justify-content:center;min-height:360px}.build-model{display:block;width:100%;max-height:480px;overflow:visible}.build-layer{opacity:0;transform:translateY(-14px);transition:opacity .7s ease,transform .7s ease;pointer-events:none}.build-layer.is-visible{opacity:1;transform:translateY(0)}.model-status{border-top:1px solid #c9c3b7;padding-top:18px;min-height:108px}.model-step-number{font-size:10px;letter-spacing:2px;color:var(--red)}.model-step-title{font-size:clamp(21px,2vw,29px);font-weight:500;letter-spacing:-.7px;margin:10px 0 6px}.model-step-description{font-size:12px;line-height:1.6;color:#62625d;margin:0}.model-controls{display:flex;align-items:center;gap:12px;margin:15px 0}.model-controls>button{border:1px solid #c9c3b7;background:#f8f6ef;padding:9px 11px;font-size:10px;cursor:pointer;white-space:nowrap}.model-controls>button:hover{border-color:var(--red);color:var(--red)}.model-steps{display:flex;flex:1;gap:5px;align-items:center}.model-steps button{border:0;background:none;padding:12px 0;flex:1;cursor:pointer;min-width:10px}.model-steps button span{display:block;height:3px;background:#cbc5b8;transition:background .3s}.model-steps button[aria-current="step"] span,.model-steps button.is-complete span{background:var(--red)}.model-note{font-size:9px;color:#77736a;line-height:1.5;margin:0;max-width:460px}@media(min-width:1500px){.elevation-animation{padding-top:40px}.build-model{max-height:540px}}@media(max-width:800px){.elevation-animation{min-height:620px;padding:25px 6% 22px}.model-scene{min-height:340px}.build-model{max-height:405px}.model-step-title{font-size:25px}.model-controls{gap:9px}}@media(prefers-reduced-motion:reduce){.build-layer{transition:none;transform:none}}

.founder{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:8%;align-items:center;max-width:1400px;margin:0 auto;background:var(--beige)}.founder-portrait{margin:0;max-width:450px;width:100%;justify-self:center;background:#e9e5dc}.founder-portrait img{display:block;width:100%;height:auto}.founder-portrait figcaption{padding:19px 22px;border-top:2px solid var(--red);display:flex;justify-content:space-between;align-items:center;gap:12px}.founder-portrait figcaption strong{font-size:14px;font-weight:500}.founder-portrait figcaption span{font-size:10px;color:var(--gray)}.founder-copy h2{margin-bottom:25px}.founder-copy p:not(.eyebrow){font-size:14px;line-height:1.85;color:var(--gray);max-width:550px}.founder-copy .founder-lead{font-size:19px!important;color:var(--ink)!important;line-height:1.55!important;margin-bottom:24px}.founder-copy .button{margin-top:18px}@media(max-width:800px){.founder{grid-template-columns:1fr;gap:35px}.founder-portrait{max-width:350px}.founder-copy{text-align:center}.founder-copy p:not(.eyebrow){margin-left:auto;margin-right:auto}.founder-portrait figcaption{padding:17px}.founder-copy h2{font-size:34px}}

.founder-portrait img{aspect-ratio:3/4;object-fit:cover;object-position:center top}

/* Quote and direct-call actions across every page. */
header{gap:18px;padding-left:3%;padding-right:3%}header nav{gap:14px;font-size:12px}.header-actions{display:flex;align-items:stretch;gap:8px;flex-shrink:0}.header-quote{display:flex;align-items:center;gap:12px;background:var(--red);color:white;padding:13px 16px;font-size:11px;white-space:nowrap}.header-quote:hover{background:#90090c}.header-phone{display:flex;flex-direction:column;justify-content:center;gap:5px;border:1px solid var(--line);padding:9px 12px;white-space:nowrap}.header-phone span{font-size:9px;color:var(--gray)}.header-phone strong{font-size:12px;font-weight:500}.header-phone:hover{border-color:var(--red)}.page-quote-actions{display:flex;justify-content:center;margin-top:25px}.quote-band{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:45px 6.5%;background:#faf9f5;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.quote-band .eyebrow{margin-bottom:13px}.quote-band h2{font-size:32px}.quote-band-actions{display:flex;align-items:stretch;gap:12px;flex-wrap:wrap}.phone-button{border:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;gap:6px;padding:12px 20px}.phone-button span{font-size:10px;color:var(--gray)}.phone-button strong{font-size:14px;font-weight:500}.phone-button:hover{border-color:var(--red)}.mobile-action-bar{display:none}
@media(min-width:1301px){header nav{display:flex!important}.menu-toggle{display:none}}
@media(max-width:1300px){header{padding:9px 4%;flex-wrap:wrap;gap:15px}.menu-toggle{display:block;background:none;border:0;font-size:12px;cursor:pointer;margin-left:auto}.menu-toggle span{margin-left:8px}header nav{display:none;position:absolute;left:0;top:100%;width:100%;padding:20px 5%;background:#faf9f5;border-bottom:1px solid var(--line);font-size:15px;flex-direction:column;gap:4px}header nav.open{display:flex}header .brand{width:100px}}
@media(max-width:600px){header .brand{width:85px}.header-actions{width:100%;gap:8px}.header-quote,.header-phone{flex:1;justify-content:center;text-align:center}.header-quote{font-size:12px;padding:12px 10px}.header-phone{padding:7px 10px;gap:3px}.header-phone strong{font-size:12px}.quote-band{flex-direction:column;text-align:center;padding:35px 6%;gap:22px}.quote-band-actions{justify-content:center}.quote-band h2{font-size:29px}.mobile-action-bar{display:flex;position:fixed;bottom:0;left:0;width:100%;z-index:20;box-shadow:0 -3px 16px #0002}.mobile-action-bar a{flex:1;padding:17px 8px;text-align:center;font-size:11px;font-weight:500}.mobile-quote{background:var(--red);color:white}.mobile-phone{background:#242422;color:white}body{padding-bottom:50px}html{scroll-padding-top:175px}.article-section{scroll-margin-top:175px}}

.quote-form-section{max-width:1000px;margin:auto;padding-top:50px}.quote-form{background:#faf9f5;border:1px solid var(--line);padding:40px}.quote-form label:not(.form-consent){display:flex;flex-direction:column;gap:10px;font-size:13px;margin-bottom:25px}.quote-form .work-select{font-size:19px!important;font-weight:500}.form-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.form-full{grid-column:1/-1}.quote-form input:not([type=checkbox]):not([type=hidden]),.quote-form select,.quote-form textarea{width:100%;padding:14px;border:1px solid #c9c3b7;background:white;font:inherit;color:var(--ink);border-radius:0}.quote-form select{font-size:14px}.quote-form textarea{resize:vertical;line-height:1.6}.quote-form input:focus,.quote-form textarea:focus,.quote-form select:focus{outline:2px solid var(--red);outline-offset:2px}.form-consent{display:flex;align-items:flex-start;gap:10px;margin-top:20px;font-size:12px;line-height:1.6}.form-consent input{accent-color:var(--red);margin-top:3px}.form-privacy,.form-activation-note{font-size:11px;line-height:1.6;color:var(--gray);margin:15px 0 25px}.quote-form .button{border:0;cursor:pointer}.quote-form .button:disabled{opacity:.5;cursor:not-allowed}@media(max-width:600px){.quote-form{padding:25px 18px}.form-fields{grid-template-columns:1fr}.quote-form-section{padding-top:35px}}

.quote-form .form-honeypot{display:none!important}.quote-form{scroll-margin-top:150px}@media(max-width:600px){.quote-form{scroll-margin-top:175px}}

.quote-success{background:#faf9f5;border:1px solid var(--line);padding:55px 35px;text-align:center}.quote-success[hidden],.quote-form[hidden],.quote-submit-error[hidden]{display:none!important}.success-mark{display:grid;place-items:center;width:82px;height:82px;margin:0 auto 28px;color:var(--red);border:1px solid #b8070c44;background:#b8070c08;border-radius:50%}.success-mark svg{width:48px;height:48px}.quote-success h2{font-size:clamp(29px,4vw,43px);max-width:650px;margin:0 auto 22px;line-height:1.2}.quote-success h2:focus{outline:none}.quote-success>p:not(.eyebrow){font-size:15px;line-height:1.8;color:var(--gray);max-width:560px;margin:0 auto 22px}.quote-success .success-detail{padding-top:22px;border-top:1px solid var(--line)}.success-detail a{font-size:22px;color:var(--red);display:inline-block;margin-top:10px}.quote-submit-error{color:#a8070c;background:#b8070c08;padding:14px;font-size:13px;line-height:1.6}.quote-form button[aria-busy=true]{cursor:wait}@media(max-width:600px){.quote-success{padding:40px 20px}}

.contact-details{max-width:1300px;margin:auto;border-top:1px solid var(--line);text-align:center;padding-top:55px;padding-bottom:55px}.contact-details h2{margin-bottom:35px}.contact-detail-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.contact-detail-grid h3{font-size:13px;font-weight:500;margin:0 0 16px}.contact-detail-grid p,.contact-detail-grid a{font-size:15px;line-height:1.8;margin:0;overflow-wrap:anywhere}.contact-detail-grid a{color:var(--red)}.contact-detail-grid a:hover{text-decoration:underline}.service-areas{background:#e9e5dc}.service-areas .project-heading{max-width:800px}.service-areas .project-heading>p:not(.eyebrow){font-size:15px;line-height:1.85;color:var(--gray);margin-top:25px}.service-areas h3{font-size:21px;font-weight:500;margin:0 0 25px}.city-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;margin:0 0 50px;gap:0 28px}.city-list li{border-top:1px solid #cec8bd;padding:13px 0;font-size:14px;line-height:1.4}.region-areas{border-top:1px solid #cec8bd;padding-top:35px;max-width:900px}.region-areas p{font-size:15px;line-height:1.85;color:var(--gray)}footer{flex-wrap:wrap}
@media(max-width:1450px){header nav{display:none!important;position:absolute;left:0;top:100%;width:100%;padding:20px 5%;background:#faf9f5;border-bottom:1px solid var(--line);font-size:15px;flex-direction:column;gap:4px}header nav.open{display:flex!important}.menu-toggle{display:block;margin-left:auto;background:none;border:0;font-size:12px;cursor:pointer}}
@media(max-width:800px){.desktop-arrow,.button>span:has(.desktop-arrow),.header-quote>span:has(.desktop-arrow){display:none!important}.contact-detail-grid{grid-template-columns:1fr;gap:30px}.city-list{grid-template-columns:1fr 1fr;gap:0 18px}.city-list li{font-size:12px}.service-areas h3{font-size:19px}.contact-details{padding-top:40px;padding-bottom:40px}}

.privacy-content{max-width:960px;margin:auto;padding-top:48px}.privacy-content>p,.privacy-content section p,.privacy-content li,.privacy-content address{font-size:16px;line-height:1.85;color:var(--gray)}.privacy-content section{margin-top:42px;padding-top:32px;border-top:1px solid var(--line)}.privacy-content h2{font-size:clamp(22px,3vw,30px);line-height:1.3;margin-bottom:20px;letter-spacing:-.5px}.privacy-content a:not(.button){color:var(--red);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.privacy-content address{font-style:normal}.privacy-content ul{padding-left:22px}.privacy-content li{margin-bottom:12px}.privacy-content .privacy-date{font-size:13px;color:var(--gray)}.privacy-contact{text-align:center;margin-top:50px;padding:35px 22px;background:#e9e5dc}.privacy-contact p{font-size:15px;line-height:1.8;margin-bottom:24px}.form-privacy a{color:var(--red);text-decoration:underline;text-underline-offset:2px}.form-privacy{font-size:12px}@media(max-width:600px){.privacy-content{padding-top:30px}.privacy-content>p,.privacy-content section p,.privacy-content li,.privacy-content address{font-size:14px}.privacy-content section{margin-top:30px;padding-top:25px}}

.legal-pending{border-left:3px solid var(--red);background:#b8070c06;padding:18px 22px}.cookie-status{display:grid;grid-template-columns:1fr 1fr;gap:16px}.cookie-status p{border:1px solid var(--line);padding:20px;margin:0;background:#faf9f5}.cookie-status strong{color:var(--ink)}@media(max-width:650px){.cookie-status{grid-template-columns:1fr}}

.legal-facts{margin:24px 0}.legal-facts>div{display:grid;grid-template-columns:1fr 1fr;gap:16px;border-bottom:1px solid var(--line);padding:15px 0;font-size:14px;line-height:1.7}.legal-facts dt{font-weight:600}.legal-facts dd{margin:0;color:var(--gray)}@media(max-width:600px){.legal-facts>div{grid-template-columns:1fr;gap:4px}}

/* Phone and tablet layout: desktop rules remain unchanged. */
@media(max-width:800px){
 html{scroll-padding-top:95px;-webkit-text-size-adjust:100%;text-size-adjust:100%}
 img,svg{max-width:100%}
 main,section,article,.hero-copy,.founder-copy,.contact-right{min-width:0}
 h1,h2,h3,p,figcaption{overflow-wrap:break-word}
 .section{padding:48px 6%}
 .hero{min-height:0}
 .hero-copy{padding:36px 6% 32px}
 .hero h1{font-size:clamp(38px,10.5vw,64px);letter-spacing:-1.8px;line-height:1.08}
 .hero h1 em{letter-spacing:-1.5px}
 .hero-foot{flex-wrap:wrap;gap:10px 18px;line-height:1.6}
 .actions{justify-content:center;width:100%}
 .button,.text-link,.phone-button{min-height:48px}
 .page-hero h1,.crist-hero h1,.photo-hero h1{font-size:clamp(30px,8vw,44px);letter-spacing:-1px;line-height:1.12}
 .page-hero .eyebrow{letter-spacing:1.4px}
 .page-hero.photo-hero{min-height:400px;padding:30px 6% 38px}
 .page-tagline{line-height:1.5}
 .breadcrumb{line-height:1.7}
 .crist-logo{width:260px;max-width:85%}
 .article-layout aside{margin-bottom:30px}
 .article-layout aside>a:not(.aside-call){min-height:44px;display:flex;align-items:center}
 .article-section,.quote-form{scroll-margin-top:95px}
 .article-intro p{font-size:17px;line-height:1.75}
 .elevation-animation{height:auto;min-height:0;padding:22px 6%}
 .model-topline{flex-wrap:wrap;line-height:1.6;letter-spacing:1px}
 .model-scene{min-height:0;padding:15px 0}
 .build-model{height:auto;max-height:none;aspect-ratio:1.3}
 .model-status{min-height:0}
 .model-controls{flex-wrap:wrap;gap:10px}
 .model-controls>button{min-height:44px;font-size:12px}
 .model-steps{flex-basis:100%;order:3;gap:8px}
 .model-steps button{min-height:44px}
 .model-step-title{font-size:23px;line-height:1.25}
 .model-note{font-size:11px;line-height:1.6}
 .project-photo-row,.project-photo-row.project-photo-pair,.project-photo-row.project-photo-four{grid-template-columns:1fr;gap:24px;max-width:540px;margin-left:auto;margin-right:auto}
 .project-photo-row figcaption{font-size:14px;min-height:44px;gap:9px}
 .project-photo-row figcaption span{font-size:11px}
 .project-photo-row figure img,#bures-sur-yvette .project-photo-row figure img,#fontenay-aux-roses .project-photo-row figure img{height:auto;aspect-ratio:auto;object-fit:contain;max-height:none}
 .project-heading h2{font-size:clamp(24px,6.5vw,32px);letter-spacing:-.8px}
 .project-tags span{font-size:11px;line-height:1.5}
 .realisation-preview>img{height:auto;max-height:none;object-fit:contain}
 .roof-gallery-grid{columns:1}
 .roof-gallery-card h3{font-size:15px}
 .quote-form input:not([type=checkbox]):not([type=hidden]),.quote-form select,.quote-form textarea{font-size:16px;min-height:48px}
 .quote-form select{max-width:100%;white-space:normal}
 .quote-form .work-select{font-size:17px!important;line-height:1.5}
 .form-fields{grid-template-columns:1fr}
 .quote-form .button{width:100%;justify-content:center;font-size:14px}
 .form-privacy{font-size:12px;line-height:1.75}
 .quote-band-actions{width:100%;display:grid;grid-template-columns:1fr}
 .quote-band-actions .button{justify-content:center}
 .quote-band-actions .phone-button{align-items:center}
 .contact{padding:45px 6%}
 .contact h2{font-size:clamp(29px,8vw,40px)}
 .phone{font-size:clamp(25px,7vw,34px)}
 footer{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:30px 6% 35px}
 footer>a:not(.footer-name){min-height:44px;display:flex;align-items:center;font-size:12px}
 footer p{margin:12px 0;line-height:1.8;font-size:12px}
 .city-list li{overflow-wrap:anywhere;font-size:13px}
}
@media(max-width:600px){
 body{padding-bottom:calc(58px + env(safe-area-inset-bottom,0px))}
 header{flex-wrap:nowrap;min-height:72px;padding:8px 6%;gap:15px}
 header .brand{width:90px}
 header .header-actions{display:none}
 .menu-toggle{padding:12px 8px;min-width:76px;min-height:44px;font-size:14px}
 header nav{padding:12px 6% 20px;max-height:calc(100vh - 135px);max-height:calc(100dvh - 135px - env(safe-area-inset-bottom,0px));overflow-y:auto;overscroll-behavior:contain}
 header nav a{min-height:46px;display:flex;align-items:center;font-size:16px}
 .mobile-action-bar{padding-bottom:env(safe-area-inset-bottom,0px);background:#242422;align-items:stretch}
 .mobile-action-bar a{min-height:58px;padding:16px 10px;display:flex;align-items:center;justify-content:center;font-size:12px;line-height:1.4}
 .hero-copy .actions{flex-direction:column;gap:14px}
 .hero-copy .actions .button{width:100%;justify-content:center;font-size:14px}
 .quote-form{padding:24px 18px}
 .quote-success h2{font-size:28px;letter-spacing:-.8px}
 .quote-success .button{width:100%;justify-content:center}
 .founder-copy h2{font-size:clamp(28px,8vw,34px)}
 .founder-portrait figcaption{flex-wrap:wrap;gap:7px}
}
@media(max-width:420px){
 .service-grid{grid-template-columns:1fr}
 .service-card,.service-card:first-child{padding:25px 18px;min-height:210px;border-right:0;border-bottom:1px solid var(--line)}
 .service-card:last-child{border-bottom:0}
 .service-card h3{font-size:24px}
 .service-card p{font-size:14px}
 .card-link{min-height:44px;align-items:center;font-size:13px}
 .ribbon{gap:12px 20px;line-height:1.6}
 .crist-details>a{font-size:clamp(15px,4.5vw,19px);min-width:0}
}
/* Accessibility and consent controls retain the site's existing palette. */
[hidden]{display:none!important}
:focus-visible{outline:3px solid #22221f;outline-offset:4px}
footer :focus-visible,.project-cta :focus-visible{outline-color:#fff}
.model-step-description,.model-note{color:#59554f}
.cookie-settings{color:inherit;background:none;border:0;text-decoration:underline;font:inherit;cursor:pointer;min-height:44px;padding:8px 0}
.cookie-panel{position:fixed;z-index:1000;bottom:24px;left:24px;width:min(540px,calc(100% - 48px));padding:24px;background:#fff;color:#22221f;box-shadow:0 8px 36px #0003;border:1px solid #d9d5cd;max-height:75dvh;overflow:auto}
.cookie-panel h2{font-size:24px;margin:0 0 12px;line-height:1.2}.cookie-panel p{font-size:14px;line-height:1.6}.cookie-panel a{color:#a0060b;text-decoration:underline}.cookie-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.cookie-panel button{background:#b8070c;color:#fff;border:1px solid #b8070c;padding:12px 16px;font:inherit;cursor:pointer;min-height:44px;font-size:14px}.cookie-panel label{display:block;padding:12px 0;font-size:14px}.cookie-panel input{width:20px;height:20px;vertical-align:middle;accent-color:#b8070c}.cookie-panel [data-cookie-details]{margin-top:12px}
@media(max-width:600px){.cookie-panel{bottom:calc(72px + env(safe-area-inset-bottom));left:12px;width:calc(100% - 24px);padding:18px;max-height:calc(100dvh - 180px)}.cookie-panel h2{font-size:22px}.cookie-actions button{flex:1 1 120px}}

@media(max-width:800px){/* Real Max Toiture project photograph behind the elevation page heading. */
.page-hero.photo-hero{background-color:#262724;background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/surelevation-chantier-800.webp');background-size:cover;background-position:center 54%;color:#fff;min-height:clamp(480px,43vw,660px);display:flex;flex-direction:column;justify-content:center;align-items:center;padding-top:42px;padding-bottom:65px}.page-hero.extension-photo-hero{background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/extension-chantier-800.webp');background-position:center 45%}.page-hero.wood-photo-hero{background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/ossature-bois-chantier-eclairci-800.webp');background-position:center 47%}/* Landscape framing of the original portrait photograph, without distortion. */
.page-hero.roof-photo-hero{background-image:linear-gradient(180deg,rgba(15,19,18,.64),rgba(15,19,18,.54) 55%,rgba(15,19,18,.65)),url('/assets/couverture-toiture-chantier-800.webp');background-size:cover;background-position:center 39%}}

.quote-success h1.confirmation-title{font-size:clamp(30px,5vw,56px);line-height:1.1;letter-spacing:-.04em;margin:16px 0 24px}

/* Keep the mobile menu label and icon black in Safari. */
@media(max-width:1450px){.menu-toggle,.menu-toggle span{color:#000;-webkit-text-fill-color:#000}.menu-toggle{appearance:none;-webkit-appearance:none}}