:root{
  --vert:#2d7a55;
  --vert-accent:#3a8a64;
  --vert-clair:#5ab88a;
  --vert-gris:#5a6a60;
  --vert-fonce:#173d2b;
  --noir:#1a1a1a;
  --gris-filet:#b0b0b0;
  --blanc:#ffffff;
  --gris-fond:#f5f5f5;
  --texte:#3b423e;
  --max:1140px;
}

*{box-sizing:border-box;margin:0;padding:0;}

html{scroll-behavior:smooth;}

body{
  font-family:'Barlow','Arial',sans-serif;
  font-weight:400;
  color:var(--texte);
  background:var(--blanc);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

.container{
  max-width:var(--max);
  margin:0 auto;
  padding:0 32px;
}

h1,h2{
  font-family:'Barlow Condensed','Arial Narrow',sans-serif;
  font-weight:300;
  color:var(--noir);
  line-height:1.08;
  letter-spacing:.01em;
}
h3{
  font-family:'Barlow','Arial',sans-serif;
  font-weight:600;
  color:var(--noir);
  line-height:1.25;
}

h1{font-size:clamp(2.6rem,6vw,4.6rem);}
h2{font-size:clamp(2rem,4vw,3.1rem);}
h3{font-size:1.18rem;}

p{font-size:1.0625rem;}

a{color:inherit;text-decoration:none;}

.eyebrow{
  font-family:'Barlow','Arial',sans-serif;
  font-weight:500;
  font-size:0.8rem;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--vert);
  margin-bottom:18px;
}
.eyebrow-light{color:var(--vert-clair);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid #e6e6e6;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:78px;
}
.brand-logo{height:36px;width:auto;display:block;}
.header-right{display:flex;align-items:center;gap:32px;}
.nav{display:flex;gap:34px;}
.nav a{
  font-weight:500;font-size:0.95rem;color:var(--vert-gris);
  padding:6px 0;position:relative;transition:color .2s;
}
.nav a:hover{color:var(--vert);}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--vert);transition:width .25s ease;
}
.nav a:hover::after{width:100%;}

.lang-switch{
  display:flex;align-items:center;gap:6px;
  font-size:0.85rem;font-weight:500;
}
.lang-switch button{
  background:none;border:none;cursor:pointer;font:inherit;
  color:var(--vert-gris);opacity:.6;padding:2px;transition:opacity .2s,color .2s;
  letter-spacing:.04em;
}
.lang-switch button:hover{opacity:.9;}
.lang-switch button.active{opacity:1;color:var(--vert);font-weight:600;}

/* ---------- Hero ---------- */
.hero{position:relative;color:var(--blanc);}
.hero-media{position:absolute;inset:0;overflow:hidden;}
.hero-img{width:100%;height:100%;object-fit:cover;object-position:center 40%;}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(20,45,33,.78) 0%,rgba(26,60,43,.55) 45%,rgba(15,35,25,.80) 100%);
}
.hero-content{
  position:relative;
  padding:150px 32px 140px;
  max-width:900px;
}
.hero .eyebrow{color:rgba(255,255,255,.85);}
.hero h1{color:var(--blanc);max-width:16ch;}
.lede{
  font-family:'Barlow','Arial',sans-serif;font-weight:300;
  font-size:clamp(1.1rem,1.7vw,1.4rem);
  color:rgba(255,255,255,.92);
  margin-top:24px;max-width:58ch;line-height:1.5;
}
.hero-actions{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap;}

.btn{
  display:inline-block;
  font-weight:500;font-size:0.98rem;
  padding:15px 32px;
  border:1.5px solid transparent;
  transition:all .2s ease;cursor:pointer;
}
.btn-primary{background:var(--vert);color:var(--blanc);border-color:var(--vert);}
.btn-primary:hover{background:var(--vert-accent);border-color:var(--vert-accent);}
.btn-ghost{border-color:rgba(255,255,255,.6);color:var(--blanc);}
.btn-ghost:hover{background:var(--blanc);color:var(--vert);border-color:var(--blanc);}

/* ---------- Sections ---------- */
.section{
  padding:104px 0;
  position:relative;
}
.section-alt{
  background:var(--gris-fond);
  background-image:url("assets/pattern-green.svg");
  background-repeat:repeat;
  background-size:560px;
}
.section-alt::before{
  content:"";position:absolute;inset:0;background:rgba(245,245,245,.82);pointer-events:none;
}
.section-alt .container{position:relative;}

.grid-2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:start;
}
.prose p+p{margin-top:18px;}

/* ---------- Valeurs ---------- */
.values{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:#e6e6e6;
  margin-top:64px;border:1px solid #e6e6e6;
}
.value{background:var(--blanc);padding:34px 28px;}
.value h3{margin-bottom:12px;}
.value h3::before{
  content:"";display:block;width:34px;height:3px;background:var(--vert);margin-bottom:18px;
}
.value p{font-size:0.96rem;color:var(--vert-gris);}

/* ---------- Bandeau essence ---------- */
.essence{
  background:var(--vert);
  background-image:url("assets/pattern-white.svg");
  background-size:560px;
  color:var(--blanc);
  text-align:center;padding:74px 32px;
}
.essence blockquote{
  font-family:'Barlow Condensed','Arial Narrow',sans-serif;
  font-weight:300;font-size:clamp(1.8rem,3.4vw,2.8rem);
  line-height:1.15;max-width:20ch;margin:0 auto;
}
.essence cite{
  display:block;margin-top:20px;font-family:'Barlow',sans-serif;
  font-style:normal;font-size:0.85rem;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.75);
}

/* ---------- Cards ---------- */
.section-alt h2{margin-bottom:0;}
.cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:56px;
}
.card{
  background:var(--blanc);
  border:1px solid #e6e6e6;
  border-top:3px solid var(--vert);
  padding:40px 34px;
  transition:transform .25s ease, box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(45,122,85,.12);}
.card-num{
  display:block;font-family:'Barlow Condensed',sans-serif;
  font-size:1.4rem;font-weight:400;color:var(--vert-clair);
  margin-bottom:16px;
}
.card h3{margin-bottom:14px;}
.card p{font-size:0.98rem;color:var(--vert-gris);}

/* ---------- Territoire ---------- */
.grid-territoire{align-items:center;gap:64px;}
.territoire-media img{
  width:100%;height:100%;object-fit:cover;display:block;
  border:1px solid #e6e6e6;
}
.grid-territoire .prose h2{margin:14px 0 20px;}

/* ---------- Contact ---------- */
.section-dark{
  background:var(--vert);
  background-image:url("assets/pattern-white.svg");
  background-size:560px;
  color:rgba(255,255,255,.85);
  position:relative;
}
.section-dark h2{color:var(--blanc);}
.prose-light{color:rgba(255,255,255,.8);margin-top:18px;max-width:52ch;}
.contact-grid{
  display:grid;grid-template-columns:1.15fr 0.85fr;gap:64px;
  margin-top:56px;align-items:start;
}

/* ---------- Formulaire ---------- */
.contact-form .field{margin-bottom:20px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.contact-form label{
  display:block;font-size:0.82rem;font-weight:500;letter-spacing:.04em;
  color:rgba(255,255,255,.85);margin-bottom:8px;
}
.contact-form label .opt{color:rgba(255,255,255,.55);font-weight:400;}
.contact-form input,
.contact-form textarea{
  width:100%;font-family:inherit;font-size:1rem;color:var(--blanc);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.35);
  border-radius:0;padding:13px 15px;transition:border-color .2s,background .2s;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(255,255,255,.5);}
.contact-form input:focus,
.contact-form textarea:focus{outline:none;border-color:var(--blanc);background:rgba(255,255,255,.18);}
.contact-form textarea{resize:vertical;min-height:120px;}
.section-dark .btn-primary{background:var(--blanc);color:var(--vert);border-color:var(--blanc);margin-top:6px;}
.section-dark .btn-primary:hover{background:transparent;color:var(--blanc);border-color:var(--blanc);}
.form-note{font-size:0.9rem;margin-top:16px;min-height:1em;}
.form-note.error{color:#ffd9d0;}
.form-note.success{color:#d6f5e2;}

.contact-block{
  border-left:2px solid rgba(255,255,255,.3);padding-left:34px;
}
.contact-logo{height:30px;width:auto;display:block;margin-bottom:10px;}
.contact-company{
  font-family:'Barlow Condensed',sans-serif;font-weight:300;
  font-size:1.9rem;color:var(--blanc);line-height:1;
}
.contact-sub{font-size:0.95rem;color:rgba(255,255,255,.7);margin:6px 0 24px;}
address{font-style:normal;color:rgba(255,255,255,.88);margin-bottom:28px;line-height:1.7;}
.contact-list{list-style:none;}
.contact-list li{
  display:flex;gap:20px;padding:14px 0;border-top:1px solid rgba(255,255,255,.18);
  font-size:1rem;
}
.contact-list li span{
  width:96px;flex:none;color:rgba(255,255,255,.6);
  font-size:0.78rem;text-transform:uppercase;letter-spacing:.12em;padding-top:3px;
}
.contact-list a{color:var(--blanc);font-weight:500;transition:opacity .2s;}
.contact-list a:hover{opacity:.7;}

/* ---------- Carte ---------- */
.map-section{line-height:0;}
.map-section iframe{
  width:100%;height:440px;border:0;display:block;filter:grayscale(.35) contrast(1.02);
}

/* ---------- Footer ---------- */
.site-footer{background:var(--vert-fonce);color:rgba(255,255,255,.6);padding:52px 0;}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-end;}
.footer-logo{height:28px;width:auto;display:block;margin-bottom:8px;}
.footer-tag{font-size:0.9rem;}
.footer-legal{font-size:0.82rem;line-height:1.8;text-align:right;}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .values{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:860px){
  .nav{display:none;}
  .grid-2{grid-template-columns:1fr;gap:32px;}
  .cards{grid-template-columns:1fr;}
  .grid-territoire{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .field-row{grid-template-columns:1fr;}
  .map-section iframe{height:320px;}
  .footer-inner{flex-direction:column;align-items:flex-start;}
  .footer-legal{text-align:left;}
  .hero-content{padding:110px 32px 96px;}
  .section{padding:72px 0;}
}
@media(max-width:560px){
  .values{grid-template-columns:1fr;}
}