/* Généré par scripts/build-site.cjs depuis css/main.css. */
/* Styles communs, puis sections dans l’ordre de la page. */
:root{
    --rouge: #B93832;
    --rouge-vif: #DC373B;
    --noir: #15181A;
    --noir-2: #1E2225;
    --gris: #6B6F72;
    --gris-clair: #D8D5CE;
    --blanc-casse: #F4F2EE;
    --turquoise: #1AA78D;
    --turquoise-fonce: #0E6F5C;
    --radius-hard: 2px;
  }

*{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  img{max-width:100%; display:block;}
  @media(prefers-reduced-motion: reduce){
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
  }
  :focus-visible{outline:3px solid var(--turquoise); outline-offset:2px;}

body{
    font-family:'Work Sans', sans-serif;
    background:var(--blanc-casse);
    color:var(--noir);
    line-height:1.55;
    overflow-x:hidden;
  }
  h1,h2,h3{
    font-family:'Oswald', sans-serif;
    text-transform:uppercase;
    letter-spacing:0.02em;
    line-height:1.05;
    font-weight:600;
  }
  a{color:inherit; text-decoration:none;}

.container{
    width:100%;
    max-width:1180px;
    margin:0 auto;
    padding:0 28px;
  }
  /* ---------- SECTION HEADERS ---------- */
  .section-head{
    display:flex; justify-content:space-between; align-items:flex-end;
    gap:24px; margin-bottom:52px; flex-wrap:wrap;
  }
  .section-head h2{font-size:clamp(32px,5vw,52px);}
  .section-head .lead{max-width:420px; color:var(--gris); font-size:16px;}
  .section-tag{
    font-family:'Oswald',sans-serif; font-size:13px; letter-spacing:0.14em;
    text-transform:uppercase; color:var(--rouge); margin-bottom:10px; display:block;
  }

.btn{
    display:inline-block;
    font-family:'Oswald',sans-serif;
    text-transform:uppercase; letter-spacing:0.05em; font-size:14px; font-weight:600;
    padding:15px 30px;
    border:2px solid var(--rouge-vif);
    background:var(--rouge-vif);
    color:#fff;
    border-radius:var(--radius-hard);
    transition:background .25s ease, color .25s ease, transform .25s ease;
  }
  .btn:hover{background:transparent; color:#fff; transform:translateY(-2px);}
  .btn.ghost{background:transparent; border-color:rgba(255,255,255,0.55); color:#fff;}
  .btn.ghost:hover{border-color:#fff; background:rgba(255,255,255,0.08);}

/* ---------- HEADER ---------- */
  header.site-header{
    position:fixed; top:0; left:0; right:0; z-index:100;
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 28px;
    background:transparent;
    transition:background 0.35s ease, padding 0.35s ease, box-shadow .35s ease;
  }
  header.site-header.scrolled{
    background:rgba(21,24,26,0.94);
    padding:10px 28px;
    box-shadow:0 6px 18px rgba(0,0,0,0.25);
  }
  header.site-header .logo-link img{height:34px; width:auto;}
  nav.main-nav ul{
    list-style:none; display:flex; gap:34px;
  }
  nav.main-nav a{
    color:#fff; font-family:'Oswald',sans-serif; font-size:14px;
    letter-spacing:0.06em; text-transform:uppercase; font-weight:500;
    padding:6px 2px; border-bottom:2px solid transparent;
    transition:border-color .25s ease, color .25s ease;
  }
  nav.main-nav a:hover{border-color:var(--turquoise);}
  .nav-toggle{
    display:none; background:none; border:0; cursor:pointer; padding:8px;
  }
  .nav-toggle span{display:block; width:26px; height:2px; background:#fff; margin:5px 0;}

  @media(max-width:840px){
    nav.main-nav{
      position:fixed; top:0; right:0; height:100vh; width:min(78vw,320px);
      background:var(--noir); padding:96px 32px 32px;
      transform:translateX(100%); visibility:hidden; transition:transform .4s ease, visibility .4s;
    }
    nav.main-nav.open{transform:translateX(0); visibility:visible;}
    nav.main-nav ul{flex-direction:column; gap:26px;}
    .nav-toggle{display:block; position:relative; z-index:1;}
  }

/* ---------- HERO ---------- */
  .hero{
    position:relative;
    min-height:max(640px, 100vh);
    background:var(--noir);
  }
  .hero-sticky{
    position:relative; min-height:inherit; overflow:hidden;
    display:flex; align-items:flex-end;
  }
  .hero-bg{
    position:absolute; inset:0;
    background-image:url("../images/branding/accueil-chantier.jpg");
    background-size:cover; background-position:center 30%;
  }
  .hero-bg::after{
    content:""; position:absolute; inset:0;
    background:
      linear-gradient(180deg, rgba(15,17,18,0.55) 0%, rgba(15,17,18,0.35) 35%, rgba(15,17,18,0.85) 100%);
  }
  .hero-content{
    position:relative; z-index:2;
    width:100%;
    padding:112px 28px 64px;
  }
  .hero-content .inner{max-width:1180px; margin:0 auto;}
  .hero-eyebrow{
    color:var(--turquoise);
    font-family:'Oswald',sans-serif;
    font-size:14px; letter-spacing:0.14em; text-transform:uppercase;
    margin-bottom:14px; font-weight:500;
  }
  .hero-content h1{
    color:#fff;
    font-size:clamp(22px, 6.8vw, 96px);
    max-width:100%;
  }
  .hero-title-line{white-space:nowrap;}
  .hero-content p{
    color:var(--gris-clair);
    font-size:clamp(16px,2.2vw,20px);
    max-width:520px;
    margin-top:20px;
  }
  .hero-cta{
    margin-top:34px; display:flex; align-items:center; gap:16px; flex-wrap:wrap;
  }
  .scroll-cue{
    position:absolute; right:28px; bottom:34px; z-index:2;
    display:flex; flex-direction:column; align-items:center; gap:10px;
    color:rgba(255,255,255,0.75);
  }
  .scroll-cue span{font-family:'Oswald',sans-serif; font-size:11px; letter-spacing:0.16em; text-transform:uppercase; writing-mode:vertical-rl;}
  .scroll-cue .line{width:1px; height:52px; background:rgba(255,255,255,0.5); position:relative; overflow:hidden;}
  .scroll-cue .line::after{
    content:""; position:absolute; top:-52px; left:0; width:100%; height:52px; background:var(--turquoise);
    animation:scrollline 1.8s ease-in-out infinite;
  }
  @keyframes scrollline{ 0%{top:-52px;} 100%{top:52px;} }

/* ---------- SERVICES ---------- */
  #services{background:var(--blanc-casse); padding:120px 0;}
  .service-row{
    display:grid; grid-template-columns:1fr 1fr; align-items:center; gap:0;
    border-top:1px solid var(--gris-clair);
    padding:56px 0;
  }
  .service-row:last-child{border-bottom:1px solid var(--gris-clair);}
  .service-row.reverse .service-media{order:2;}
  .service-row.reverse .service-copy{order:1;}
  .service-media{
    position:relative; aspect-ratio:4/3; overflow:hidden; background:var(--noir);
    clip-path:polygon(0 0, 100% 0, 100% 92%, 92% 100%, 0 100%);
  }
  .service-media video, .service-media img.photo{
    position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
    transition:transform 6s ease;
  }
  .service-row.inview .service-media img.photo{transform:scale(1.09);}
  .service-media.illus svg{
    position:absolute; inset:0; width:100%; height:100%; display:block;
  }
  .service-copy{padding:0 56px;}
  .service-index{
    font-family:'Oswald',sans-serif; color:var(--gris); font-size:13px; letter-spacing:0.12em; text-transform:uppercase;
  }
  .service-copy h3{font-size:clamp(26px,3.4vw,38px); margin:10px 0 16px;}
  .service-copy p{color:var(--gris); font-size:16px; max-width:440px;}
  .service-note{
    display:inline-block; margin-top:16px; font-size:12.5px; color:var(--turquoise-fonce);
    border-left:2px solid var(--turquoise); padding-left:10px;
  }

  @media(max-width:840px){
    .service-row, .service-row.reverse{grid-template-columns:1fr;}
    .service-row.reverse .service-media, .service-row.reverse .service-copy{order:initial;}
    .service-copy{padding:32px 0 0;}
  }

/* ---------- REALISATIONS ---------- */
  #realisations{background:var(--noir); color:#fff; padding:120px 0;}
  #realisations .section-head .lead{color:var(--gris-clair);}
  .gallery{
    display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
  }
  .gallery button.gitem{
    position:relative; border:0; padding:0; cursor:pointer; overflow:hidden;
    aspect-ratio:4/5; background:var(--noir-2);
  }
  .gallery button.gitem img{
    width:100%; height:100%; object-fit:cover;
    transition:transform .6s ease, filter .6s ease;
    filter:grayscale(15%);
  }
  .gallery button.gitem:hover img{transform:scale(1.06); filter:grayscale(0%);}
  .gallery button.gitem .cap{
    position:absolute; left:0; right:0; bottom:0; padding:14px 16px;
    background:linear-gradient(0deg, rgba(0,0,0,0.75), transparent);
    font-family:'Oswald',sans-serif; font-size:13px; letter-spacing:0.03em; text-align:left; color:#fff;
  }
  .gallery .gvideo{
    position:relative; overflow:hidden; aspect-ratio:4/5; background:var(--noir-2);
  }
  .gallery .gvideo video{
    width:100%; height:100%; object-fit:cover; display:block;
  }
  .gallery .gvideo .cap{
    position:absolute; left:0; right:0; bottom:0; padding:14px 16px;
    background:linear-gradient(0deg, rgba(0,0,0,0.75), transparent);
    font-family:'Oswald',sans-serif; font-size:13px; letter-spacing:0.03em; text-align:left; color:#fff;
  }
  @media(max-width:840px){ .gallery{grid-template-columns:repeat(2,1fr);} }
  @media(max-width:520px){ .gallery{grid-template-columns:1fr;} }

  #realisations.service-gallery { padding:40px 0 70px; margin-top:36px; }
  .service-gallery .gitem { display:block; position:relative; width:100%; padding:0; border:0; background:var(--noir-2); color:white; cursor:zoom-in; text-align:left; }
  .service-gallery .gitem:focus-visible { outline-offset:-4px; }
  .slide-caption { position:absolute; inset:auto 0 0; padding:64px 28px 24px; background:linear-gradient(transparent,rgba(0,0,0,.88)); }
  .slide-caption span, .slide-caption strong, .slide-caption small { display:block; }
  .slide-caption span { text-transform:uppercase; letter-spacing:.1em; font-size:13px; margin-bottom:8px; }
  .slide-caption strong { font-family:'Oswald',sans-serif; font-size:clamp(23px,3vw,34px); }
  .slide-caption small { margin-top:12px; }
  .service-albums .gitem[hidden] { display:none; }
  .gallery.service-albums .gitem { aspect-ratio:4/3; }
  .album-caption { position:absolute; inset:auto 0 0; padding:50px 20px 20px; background:linear-gradient(transparent,rgba(0,0,0,.9)); }
  .album-caption strong { display:block; font-family:'Oswald',sans-serif; font-size:clamp(22px,2.5vw,30px); line-height:1.15; }
  .album-caption span { display:block; margin-top:10px; font-size:13px; color:var(--gris-clair); }
  .service-photos .gallery { margin-top:24px; }
  .service-photos .gitem { text-align:left; }

.lightbox { position:fixed; inset:0; width:100%; height:100%; max-width:none; max-height:none; border:0; padding:24px; background:rgba(10,11,12,.97); color:white; }
.lightbox:not([open]) { display:none; }
.lightbox[open] { display:flex; align-items:center; justify-content:center; }
.lightbox::backdrop { background:rgba(0,0,0,.85); }
.lb-panel { width:min(1100px,100%); min-width:0; max-height:100%; overflow-y:auto; }
.lb-header { display:flex; align-items:center; justify-content:space-between; gap:20px; margin-bottom:16px; }
.lb-header h2 { font-size:clamp(22px,3vw,32px); }
.lightbox button { min-width:44px; min-height:44px; border:1px solid var(--gris); background:var(--noir-2); color:white; cursor:pointer; font-size:24px; }
.lightbox button:disabled { opacity:.3; cursor:default; }
.lb-close { font-size:32px !important; }
.lb-stage { display:grid; grid-template-columns:44px minmax(0,1fr) 44px; align-items:center; gap:12px; }
#lbImg { width:100%; height:58vh; height:58dvh; object-fit:contain; }
.lb-cap { color:var(--gris-clair); margin:12px 0; font-size:14px; }
.lb-thumbnails { position:relative; display:flex; gap:10px; overflow-x:auto; padding:5px 3px 12px; }
.lb-thumbnails button { flex:0 0 100px; padding:3px; border:2px solid transparent; }
.lb-thumbnails button[aria-current="true"] { border-color:var(--turquoise); }
.lb-thumbnails img { width:90px; height:65px; object-fit:cover; }
@media(max-width:520px) { .lightbox { padding:12px; } .lb-stage { grid-template-columns:36px minmax(0,1fr) 36px; gap:4px; } .lb-stage button { min-width:36px; } #lbImg { height:48vh; height:48dvh; } }

.avis-block{margin-top:90px; padding-top:60px; border-top:1px solid rgba(255,255,255,0.14);}
  .avis-block .section-head{margin-bottom:10px;}
  .avis-block .section-head h2{font-size:clamp(26px,4vw,38px);}
  #realisations .avis-block > .lead{color:var(--gris-clair); max-width:560px;}
  .avis-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:36px;}
  .avis-card{
    border:1px solid rgba(255,255,255,0.14); padding:26px; min-height:150px;
    display:flex; flex-direction:column; justify-content:space-between;
    color:var(--gris-clair); font-size:14.5px;
  }
  .avis-card .avis-stars{color:var(--turquoise); letter-spacing:2px; margin-bottom:10px;}
  .avis-card .avis-who{margin-top:16px; font-family:'Oswald',sans-serif; font-size:12.5px; letter-spacing:0.06em; text-transform:uppercase; color:#fff;}
  @media(max-width:840px){.avis-grid{grid-template-columns:1fr;}}

/* ---------- A PROPOS ---------- */
  #apropos{background:var(--blanc-casse); padding:120px 0;}
  .apropos-grid{display:grid; grid-template-columns:1.1fr 0.9fr; gap:70px; align-items:center;}
  .apropos-grid h2{font-size:clamp(30px,4.6vw,48px); margin-bottom:22px;}
  .apropos-grid p{color:var(--gris); font-size:16.5px; max-width:480px; margin-bottom:16px;}
  .valeurs{display:grid; grid-template-columns:1fr 1fr; gap:22px; margin-top:32px;}
  .valeurs div h4{font-family:'Oswald',sans-serif; font-size:15px; text-transform:uppercase; letter-spacing:0.05em; margin-bottom:6px;}
  .valeurs div p{font-size:14px; color:var(--gris); margin:0;}

  .zone-diagram{
    width:100%; max-width:560px; margin:0 auto;
  }
  .zone-diagram img{display:block; width:100%; height:auto; border-radius:4px;}

  @media(max-width:900px){ .apropos-grid{grid-template-columns:1fr;} }

/* ---------- CONTACT ---------- */
  #contact{background:var(--noir); color:#fff; padding:120px 0 100px;}
  .contact-grid{display:grid; grid-template-columns:0.85fr 1.15fr; gap:70px;}
  .contact-info h2{font-size:clamp(30px,4.6vw,46px); margin-bottom:18px;}
  .contact-info p{color:var(--gris-clair); max-width:400px; margin-bottom:30px;}
  .contact-detail{margin-bottom:22px;}
  .contact-detail .label{display:block; font-family:'Oswald',sans-serif; font-size:12px; letter-spacing:0.1em; text-transform:uppercase; color:var(--turquoise); margin-bottom:4px;}
  .contact-detail a, .contact-detail .value{font-size:18px; color:#fff;}
  .contact-detail .placeholder-hint{display:block; font-size:12px; color:var(--gris); margin-top:3px;}

  form.contact-form{background:var(--noir-2); padding:40px; border:1px solid rgba(255,255,255,0.1);}
  .form-honeypot{display:none;}
  .form-row{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
  .field{margin-bottom:18px;}
  .field label{display:block; font-size:12.5px; font-family:'Oswald',sans-serif; letter-spacing:0.06em; text-transform:uppercase; color:var(--gris-clair); margin-bottom:8px;}
  .field input, .field select, .field textarea{
    width:100%; background:var(--noir); border:1px solid rgba(255,255,255,0.22); color:#fff;
    padding:13px 14px; font-family:'Work Sans',sans-serif; font-size:15px;
  }
  .field input:focus, .field select:focus, .field textarea:focus{border-color:var(--turquoise);}
  .field textarea{resize:vertical; min-height:110px;}
  .form-msg{margin-top:14px; font-size:13.5px; color:var(--turquoise);}

  @media(max-width:900px){
    .contact-grid{grid-template-columns:1fr;}
    .form-row{grid-template-columns:1fr;}
  }

/* ---------- FOOTER ---------- */
  footer{background:#0F1112; color:var(--gris-clair); padding:44px 0; font-size:13.5px;}
  .footer-row{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:18px;}
  footer img{height:24px; width:auto; opacity:0.85;}

/* Mise en page partagée des pages de services et des pages intérieures. */
html { scroll-padding-top: 100px; }
.inner-page header.site-header { background: var(--noir); }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 300; padding: 12px; background: white; color: var(--noir); }
.skip-link:focus { top: 12px; }
.page-heading, .service-page { padding-top: 125px; }
.breadcrumb { margin-bottom: 32px; font-size: 14px; color: var(--gris); }
.breadcrumb a { text-decoration: underline; text-underline-offset: 3px; }
.page-heading h1, .service-intro h1 { font-size: clamp(34px, 5vw, 64px); }
.page-heading > p { margin-top: 24px; max-width: 720px; }
.page-content { padding-top: 48px; padding-bottom: 48px; }
.page-content h2 { font-size: clamp(27px, 3.5vw, 40px); margin-bottom: 22px; }
.page-content h3 { font-size: 24px; margin: 28px 0 16px; }
.page-content p { max-width: 760px; margin-bottom: 18px; }
.page-content ul { padding-left: 24px; }
.page-content li { margin-bottom: 10px; }
.service-intro { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px; align-items: center; }
.service-intro figure { min-width: 0; }
.service-intro p { margin: 24px 0; }
.service-intro img { display: block; width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; }
.service-intro video { display:block; width:100%; aspect-ratio:4/3; object-fit:cover; background:var(--noir); }
.service-intro figcaption { color: var(--gris); font-size: 13px; margin-top: 10px; }
.text-link { display: inline-block; color: var(--turquoise-fonce); font-weight: 600; margin-top: 20px; text-decoration: underline; text-underline-offset: 5px; }
.service-links { display: flex; flex-wrap: wrap; gap: 12px 26px; list-style: none; padding: 0 !important; }
.service-links a { text-decoration: underline; text-underline-offset: 4px; }
footer .service-links { color: var(--gris-clair); margin-bottom: 30px; }
.project-cta { background: var(--noir); color: white; padding: 64px 0; }
.project-cta h2 { font-size: clamp(28px, 4vw, 44px); }
.project-cta p { margin: 20px 0 28px; }
.service-intro .btn:hover { color: var(--rouge); }
@media(max-width:840px) { .service-intro { grid-template-columns: minmax(0, 1fr); gap: 30px; } }

/* Galerie défilante de l'accueil ; photos dans content/galerie-accueil.html. */
#realisations.home-gallery { padding: 90px 0; }
.home-gallery .section-tag { color: var(--turquoise); }
.home-carousel-track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; overscroll-behavior-x: contain; scrollbar-width: thin; scrollbar-color: var(--turquoise) var(--noir-2); }
.home-carousel-slide { flex: 0 0 100%; min-width: 0; position: relative; scroll-snap-align: start; margin: 0; background: var(--noir-2); }
.home-carousel-slide img { width: 100%; height: clamp(280px, 48vw, 580px); object-fit: cover; }
.home-carousel-slide--assainissement { background: #111; }
.home-carousel-slide--assainissement img { object-fit: contain; }
.home-carousel-slide figcaption { position: absolute; inset: auto 0 0; padding: 64px 32px 28px; background: linear-gradient(transparent, rgba(0,0,0,.85)); color: white; }
.home-carousel-slide figcaption span { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 8px; }
.home-carousel-slide figcaption strong { display: block; font-family: 'Oswald', sans-serif; font-size: clamp(23px, 3vw, 36px); line-height: 1.15; }
.home-carousel-controls { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.home-carousel-controls[hidden] { display: none; }
.home-carousel-controls button { min-height: 44px; min-width: 44px; padding: 10px 14px; border: 1px solid var(--gris); background: transparent; color: white; font: inherit; cursor: pointer; }
.home-carousel-controls button:hover { border-color: var(--turquoise); background: var(--noir-2); }
.home-carousel-controls [data-counter] { font-variant-numeric: tabular-nums; min-width: 45px; text-align: center; }
@media (min-width:1025px) and (hover:hover) and (pointer:fine) {
  .home-carousel-controls [data-pause] { display: none; }
}
.home-gallery-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; margin-top: 32px; }
.home-gallery-footer p { color: var(--gris-clair); }
@media(max-width:520px) {
  #realisations.home-gallery { padding: 64px 0; }
  .home-carousel-slide figcaption { padding: 56px 18px 20px; }
  .home-gallery-footer .btn { width: 100%; text-align: center; }
}