:root{
  --green:#8cbe55; --green-dark:#7cae47; --green-text:#5f8a33; --green-soft:#eef4e5;
  --ink:#1b1f1a; --body:#394036; --muted:#6b7267; --line:#e0e3db; --soft:#f6f7f3;
  --footer:#2f3234; --pad:clamp(20px,5.5vw,80px);
}
*{box-sizing:border-box}
body{margin:0;font-family:'Source Sans 3',system-ui,sans-serif;font-size:18px;line-height:1.55;color:var(--body);background:#fff}
h1,h2,h3{font-family:'Sora',system-ui,sans-serif;color:var(--ink);margin:0}
a{color:inherit}
.eyebrow{font-family:'Sora',sans-serif;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--green-text)}
.btn{display:inline-block;background:var(--green);color:var(--ink);font-family:'Sora',sans-serif;font-weight:600;font-size:16px;padding:14px 26px;border-radius:999px;text-decoration:none}
.btn:hover{background:var(--green-dark)}

/* En-tête */
.site-head{display:flex;align-items:center;justify-content:space-between;padding:20px var(--pad);border-bottom:1.5px solid var(--ink);background:#fff}
.logo{font-family:'Sora',sans-serif;font-weight:700;font-size:24px;color:var(--ink);text-decoration:none}
.logo span{color:var(--green-text)}
.site-head nav{display:flex;gap:28px;font-size:17px}
.site-head nav a{text-decoration:none}
.site-head nav a:hover{color:var(--green-text)}

/* Piste 1 : accueil plein écran */
.hero{position:relative;min-height:560px;background:url(../assets/hero-accueil-vert.jpg) center/cover no-repeat;display:flex;align-items:center}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(27,31,26,.85) 0%,rgba(27,31,26,.35) 70%)}
.hero .in{position:relative;padding:0 var(--pad);max-width:780px;color:#fff}
.hero .eyebrow{color:var(--green)}
.hero h1{color:#fff;font-size:clamp(30px,4.4vw,52px);line-height:1.1;max-width:22ch;margin:12px 0 18px}
.hero p{font-size:20px;max-width:46ch;margin:0 0 22px;color:#f1f4ee}

/* Pied de page */
.site-foot{background:var(--footer);color:#cfd3cc;padding:48px var(--pad) 32px;font-size:16px}
.site-foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.site-foot h3{color:#fff;font-size:16px;margin-bottom:12px}
.site-foot a{display:block;text-decoration:none;margin-bottom:8px;color:#cfd3cc}
.site-foot a:hover{color:var(--green)}
.site-foot .legal{margin-top:40px;padding-top:20px;border-top:1px solid #444;font-size:14px;color:#9aa096}

@media(max-width:820px){
  .site-head nav{display:none}
  .hero{min-height:480px}
  .site-foot .cols{grid-template-columns:1fr}
}