:root{
  --blue:#0876de;
  --blue-deep:#075cae;
  --blue-pale:#eef6ff;
  --navy:#12233d;
  --ink:#18243a;
  --muted:#66748a;
  --line:#e7edf4;
  --soft:#f7faff;
  --white:#fff;
  --radius:18px;
  --shadow:0 18px 46px rgba(18,35,61,.08);
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff;line-height:1.58;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.section{padding:84px 0}
.section-soft{background:var(--soft)}
.eyebrow{font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;font-weight:800;color:var(--blue);margin-bottom:13px}
h1,h2,h3{font-family:Georgia,'Times New Roman',serif;color:var(--navy);line-height:1.07;margin:0 0 18px}
h1{font-size:clamp(3rem,5.3vw,4.8rem);letter-spacing:-.045em}
h2{font-size:clamp(2rem,3.7vw,3.15rem);letter-spacing:-.03em}
h3{font-size:1.32rem}
p{margin:0 0 17px;color:var(--muted)}
.lead{font-size:1.09rem;max-width:760px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:13px 22px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.2s ease;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px)}
.btn-secondary{border-color:#b8c9dc;background:#fff;color:#18304f}.btn-secondary:hover{border-color:var(--blue);color:var(--blue)}
.btn-white{background:#fff;color:var(--blue)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(226,233,242,.9)}
.nav{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;flex:0 0 auto}.brand img{width:198px;height:62px;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:23px;font-size:.88rem;font-weight:700;white-space:nowrap}
.nav-links a{position:relative;padding:29px 0 27px}.nav-links a:after{content:'';position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--blue);transition:.2s ease}.nav-links a:hover{color:var(--blue)}.nav-links a:hover:after{right:0}
.nav-cta{white-space:nowrap}.menu-toggle{display:none;border:0;background:none;font-size:1.8rem;color:var(--navy)}
.hero{padding:0;background:#fff;border-bottom:1px solid var(--line)}
.hero .container{width:min(100%,1440px)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;min-height:570px;align-items:stretch}
.hero-copy{padding:72px max(48px,calc((100vw - var(--max))/2 + 24px)) 54px max(48px,calc((100vw - var(--max))/2 + 24px));display:flex;flex-direction:column;justify-content:center}
.hero-copy .lead{max-width:610px}.hero h1 span{color:var(--blue)}
.hero-meta{margin-top:26px;display:flex;gap:28px;flex-wrap:wrap;font-size:.9rem;color:#506078;font-weight:700}
.hero-media{min-height:570px;position:relative;overflow:hidden;background:#eaf2fb}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-media:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.12),transparent 28%)}
.logo-strip{padding:34px 0 38px;border-bottom:1px solid var(--line);background:#fff}
.logo-strip-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.logo-title{font-family:Georgia,'Times New Roman',serif;font-size:1.65rem;color:var(--navy);font-weight:700}.logo-note{font-size:.85rem;color:var(--muted)}
.logo-marquee{overflow:hidden;mask-image:linear-gradient(to right,transparent,#000 5%,#000 95%,transparent)}
.logo-track{display:flex;align-items:center;gap:60px;width:max-content;animation:marquee 32s linear infinite;padding:4px 30px}.logo-track:hover{animation-play-state:paused}
.partner{display:flex;align-items:center;justify-content:center;min-width:170px;height:74px}.partner > div{text-align:center}.partner img{max-width:152px;max-height:56px;object-fit:contain;margin:auto}.partner .station-logo{max-height:50px}.partner .elsie-logo{max-height:46px}.partner small{display:block;margin-top:6px;font-size:.72rem;font-weight:700;color:#32435a}.partner.remote img{background:#fff}
@keyframes marquee{to{transform:translateX(-50%)}}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 7px 24px rgba(18,35,61,.04)}
.service-card{overflow:hidden;padding:0;transition:.2s ease}.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.service-visual{height:210px;position:relative;overflow:hidden;background:linear-gradient(135deg,#e9f3ff,#f8fbff)}
.service-visual:before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(8,118,222,.25),transparent 28%),linear-gradient(145deg,transparent 40%,rgba(18,35,61,.08))}
.service-visual.office{background:linear-gradient(135deg,#eef4fa,#dfe9f3)}.service-visual.health{background:linear-gradient(135deg,#f4fbf7,#e8f4ee)}
.service-visual .visual-label{position:absolute;left:22px;bottom:18px;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);padding:8px 11px;border-radius:8px;font-size:.76rem;font-weight:800;color:#314056}
.service-body{padding:24px}.service-body h3{font-size:1.35rem}.service-link{font-weight:800;color:var(--blue);font-size:.91rem}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 12px 30px rgba(18,35,61,.04)}
.stat{padding:31px 28px;text-align:left;position:relative}.stat+ .stat{border-left:1px solid var(--line)}.stat strong{font-family:Georgia,'Times New Roman',serif;font-size:2.2rem;display:block;color:var(--blue);line-height:1}.stat span{display:block;margin-top:9px;color:var(--muted);font-weight:700;font-size:.9rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}
.feature{display:flex;gap:13px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}.feature-icon{flex:0 0 38px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--blue-pale);color:var(--blue);font-weight:900}.feature h3{font-family:Arial,Helvetica,sans-serif;font-size:.98rem;margin:0 0 6px}.feature p{margin:0;font-size:.91rem}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}.step{position:relative;padding:58px 18px 20px;border:1px solid var(--line);border-radius:15px;background:#fff}.step:before{counter-increment:step;content:'0' counter(step);position:absolute;top:17px;left:18px;font-weight:900;color:var(--blue);font-size:1rem}.step h3{font-family:Arial,Helvetica,sans-serif;font-size:.97rem;margin-bottom:8px}.step p{font-size:.88rem;margin:0}.step:after{display:none}
.local-map{min-height:350px;border-radius:20px;background:radial-gradient(circle at 48% 50%,rgba(8,118,222,.18),transparent 25%),linear-gradient(135deg,#eef6ff,#fbfdff);border:1px solid var(--line);position:relative;overflow:hidden}.local-map:before,.local-map:after{content:'';position:absolute;border:1px solid #c6d6eb;border-radius:50%;inset:18% 24%}.local-map:after{inset:32% 36%;border:2px solid var(--blue)}.map-pin{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:18px;height:18px;background:var(--blue);border-radius:50%;box-shadow:0 0 0 10px rgba(8,118,222,.12)}
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.project-card{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff}.project-image{height:230px;background:linear-gradient(135deg,#e6eef8,#fbfcfe);position:relative}.project-image:after{content:'Photo terrain';position:absolute;inset:auto 16px 16px auto;background:rgba(255,255,255,.9);padding:6px 9px;border-radius:7px;font-size:.72rem;font-weight:800;color:#68758a}.project-body{padding:21px}.tag{display:inline-flex;padding:6px 9px;border-radius:999px;background:var(--blue-pale);color:var(--blue);font-size:.73rem;font-weight:900;margin-bottom:11px}
.reviews-shell{position:relative}.reviews-summary{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:26px}.stars{letter-spacing:.1em;color:#f5a600;font-size:1.08rem}.reviews-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(290px,1fr);gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none}.reviews-track::-webkit-scrollbar{display:none}.review-card{scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 6px 22px rgba(18,35,61,.04)}.review-author{font-weight:900;margin-top:16px}.review-meta{font-size:.85rem;color:var(--muted)}
.cta-box{border-radius:22px;padding:48px;background:linear-gradient(125deg,#12304f,#075cae);color:#fff;display:flex;justify-content:space-between;gap:30px;align-items:center}.cta-box h2{color:#fff}.cta-box p{color:#e9f4ff;margin-bottom:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:8px}.field.full{grid-column:1/-1}label{font-weight:800;font-size:.92rem}input,textarea,select{width:100%;border:1px solid #dbe3ef;border-radius:12px;padding:14px 15px;background:#fff;color:var(--ink);outline:none}input:focus,textarea:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(8,118,222,.1)}textarea{min-height:150px;resize:vertical}.form-note{font-size:.82rem;color:var(--muted)}
.site-footer{background:#111d2d;color:#d9e1ed;padding:56px 0 26px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.15fr 1fr;gap:34px}.footer-brand img{width:168px;background:#fff;border-radius:10px;padding:6px 10px}.site-footer h3{font-family:Arial,Helvetica,sans-serif;font-size:.92rem;color:#fff;margin-bottom:13px}.site-footer p,.site-footer a,.site-footer span{color:#9fabbd;font-size:.9rem}.site-footer a:hover{color:#fff}.footer-links{display:grid;gap:8px}.footer-bottom{border-top:1px solid #27364a;margin-top:32px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.82rem;color:#8794a8}
.page-hero{padding:74px 0 54px;background:linear-gradient(180deg,#f7fbff,#fff)}.page-hero h1{font-size:clamp(2.8rem,5vw,4.55rem)}.page-hero .lead{max-width:800px}.breadcrumbs{font-size:.84rem;color:var(--muted);margin-bottom:18px}.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 24px}.check-item{display:flex;gap:10px;align-items:flex-start}.check-item:before{content:'✓';color:var(--blue);font-weight:900}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0}.filter-btn{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:999px;font-weight:800}.filter-btn.active{background:var(--blue);color:#fff;border-color:var(--blue)}.legal{max-width:820px}.legal h2{font-size:2rem;margin-top:42px}.legal h3{font-family:Arial,Helvetica,sans-serif;font-size:1.05rem;margin-top:28px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:20px;top:20px;background:#fff;padding:10px;z-index:9999}
@media (max-width:1120px){.nav-links{gap:16px;font-size:.83rem}.brand img{width:168px;height:54px}.nav-cta{padding-inline:16px}.hero-copy{padding-left:44px;padding-right:44px}.feature-list{grid-template-columns:1fr}}
@media (max-width:980px){.nav-links{display:none}.menu-toggle{display:block}.hero-grid,.split{grid-template-columns:1fr}.hero-copy{padding:54px 28px 38px}.hero-media{min-height:430px}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3,.project-grid{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-box{align-items:flex-start;flex-direction:column}.nav-cta{margin-left:auto}}
@media (max-width:700px){.container{width:min(calc(100% - 28px),var(--max))}.section{padding:62px 0}.nav{height:72px}.brand img{width:156px;height:50px}.nav-cta{display:none}.mobile-open .nav-links{display:flex;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--line);padding:18px 16px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)}.mobile-open .nav-links a{padding:8px 0}.hero-grid{display:flex;flex-direction:column}.hero-copy{order:1;padding:44px 22px 34px}.hero-media{order:2;min-height:330px}.hero h1{font-size:clamp(2.7rem,12vw,3.6rem)}.hero-meta{gap:10px;flex-direction:column}.actions .btn{width:100%}.grid-3,.grid-4,.project-grid,.stats,.footer-grid,.form-grid,.check-grid,.feature-list{grid-template-columns:1fr}.stat+ .stat{border-left:0;border-top:1px solid var(--line)}.timeline{grid-template-columns:1fr}.cta-box{padding:32px 24px}.logo-track{gap:34px}.partner{min-width:145px}.logo-strip-head{align-items:flex-start;flex-direction:column}.section h2{font-size:2.1rem}.footer-bottom{flex-direction:column}.reviews-track{grid-auto-columns:88%}}

/* --- V3 refinements --- */
@media (min-width:981px){
  .hero .container{width:min(calc(100% - 28px),1560px)}
  .hero-grid{grid-template-columns:minmax(0,1.22fr) minmax(470px,.78fr);min-height:610px}
  .hero-copy{padding:70px 54px 58px clamp(28px,2.4vw,44px);}
  .hero-copy .lead{max-width:760px}
  .hero h1{max-width:940px;font-size:clamp(3.35rem,4.9vw,5.15rem)}
  .hero-media{min-height:610px;border-radius:22px 0 0 22px;margin:24px 0 24px 0}
}
.partner.macif-partner{min-width:235px}.partner.macif-partner img{max-width:220px;max-height:80px;object-fit:contain}
.partner.arcelor-partner img{max-width:215px;max-height:74px;object-fit:contain}
.partner.groupe-sos-partner{min-width:220px}.partner.groupe-sos-partner img{max-width:198px;max-height:70px;object-fit:contain}
.service-visual{background:#edf3f9}
.service-visual img,.project-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.service-card:hover .service-visual img,.project-card:hover .project-image img{transform:scale(1.035)}
.service-visual:before{z-index:1;background:linear-gradient(180deg,transparent 42%,rgba(9,27,48,.32) 100%)}
.service-visual .visual-label{z-index:2}
.local-map{min-height:0;background:none;border:0;box-shadow:0 18px 45px rgba(18,35,61,.08)}
.local-map img{width:100%;height:auto;border-radius:20px}
.project-card{transition:.2s ease}.project-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.project-image{background:#eaf1f8;overflow:hidden}.project-image:after{display:none}
.footer-brand img{width:178px;background:transparent;border-radius:0;padding:0;filter:brightness(0) invert(1);opacity:.97;margin-bottom:16px}
@media (max-width:980px){.hero-media{border-radius:0;margin:0}.local-map{margin-top:8px}}

.local-map{border-radius:22px;overflow:hidden}
.local-map img{display:block;width:100%;height:auto}

/* V3.9 — real-life photo gallery and before/after treatments */
.before-after{display:grid;grid-template-columns:1fr 1fr;width:100%;height:100%;overflow:hidden}
.ba-panel{position:relative;min-width:0;overflow:hidden;background:#eaf1f8}
.ba-panel:first-child{border-right:2px solid #fff}
.ba-panel img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;transition:transform .45s ease}
.ba-label{position:absolute;left:9px;bottom:10px;z-index:2;background:rgba(17,29,45,.83);color:#fff;font-family:Arial,Helvetica,sans-serif;font-size:11px;font-weight:800;letter-spacing:.07em;padding:6px 8px;border-radius:6px}
.ba-panel:last-child .ba-label{background:rgba(8,118,222,.92)}
.project-image-comparison{height:260px}
.terrain-gallery .project-image{height:340px;border-radius:20px;overflow:hidden}
.terrain-gallery .project-image>img{width:100%;height:100%;object-fit:cover;display:block}
.project-card:hover .before-after img{transform:none}
@media(max-width:700px){.terrain-gallery .project-image{height:370px}.project-image-comparison{height:290px}}
.project-grid .project-card:first-child .project-image>img{object-position:center 65%}
.project-grid .project-card[data-project="copro"] .project-image>img{object-position:center 62%}

/* V3.10 — wider, more legible real project imagery */
@media(min-width:981px){
  .realisation-project-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:24px}
  .realisation-project-grid>.project-card{grid-column:span 2}
  .realisation-project-grid>.project-card:nth-child(n+4){grid-column:span 3}
  .realisation-project-grid .project-image{height:330px}
  .realisation-project-grid .project-image-comparison{height:365px}
  .terrain-section>.container{width:min(calc(100% - 48px),1380px);max-width:1380px}
  .terrain-gallery .project-image{height:410px}
}
/* Keep the entire portrait visible rather than cutting off the cleaning cart and stairs. */
.realisation-project-grid .copro-photo{background:#dce5eb}
.realisation-project-grid .copro-photo::before{content:'';position:absolute;inset:-18px;background:url('../img/realisations/copro-entretien.webp') center 56%/cover no-repeat;filter:blur(17px) brightness(.78);opacity:.5;pointer-events:none}
.realisation-project-grid .copro-photo>img{position:relative;z-index:1;object-fit:contain!important;object-position:center center!important;transform:none!important}
.realisation-project-grid .project-card:hover .copro-photo>img{transform:none!important}
@media(min-width:701px) and (max-width:980px){
  .realisation-project-grid .project-image{height:300px}
  .realisation-project-grid .project-image-comparison{height:340px}
  .terrain-gallery .project-image{height:390px}
}
@media(max-width:700px){
  .realisation-project-grid .project-image{height:290px}
  .realisation-project-grid .project-image-comparison{height:350px}
  .terrain-gallery .project-image{height:400px}
}

/* V3.11 — four original photos, two clear before/after pairs on homepage */
.home-four-comparison{height:380px;display:grid;grid-template-rows:1fr 1fr;background:#eaf1f8}
.home-comparison-pair{display:grid;grid-template-columns:1fr 1fr;min-height:0;overflow:hidden}
.home-comparison-pair:first-child{border-bottom:3px solid #fff}
.home-comparison-pair .ba-panel:first-child{border-right:2px solid #fff}
.home-comparison-pair .ba-panel img{width:100%;height:100%;object-fit:cover;display:block;transition:none!important}
.home-comparison-pair .ba-label{bottom:7px;left:7px;font-size:10px;padding:5px 7px}
.home-comparison-pair .ba-panel:last-child .ba-label{background:rgba(8,118,222,.92)}
.home-project-grid .project-card:hover .home-comparison-pair img{transform:none!important}
@media(min-width:981px){
 .home-project-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
 .home-project-grid .project-card>.project-image{height:380px}
}
@media(min-width:701px) and (max-width:980px){
 .home-project-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .home-project-grid .project-card>.project-image{height:350px}
}
@media(max-width:700px){
 .home-project-grid .project-card>.project-image{height:360px}
}

/* V3.15 : conserve intégralement le carrousel V3.13 (logos, tailles,
   ordre, espacement global et vitesse), réduit uniquement le vide MACIF. */
.partner.macif-partner{min-width:170px}