:root{
  --gold:#d59a20;
  --black:#111;
  --soft:#f6f6f4;
  --line:#e9e9e6;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#111;background:#fff;line-height:1.5}
a{color:inherit;text-decoration:none}
.site-header{position:sticky;top:0;z-index:50;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:30px;padding:14px 4%;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid #eee}
.brand img{width:360px;height:240px;object-fit:contain}.main-nav{display:flex;justify-content:center;gap:30px;font-weight:700;text-transform:uppercase;font-size:.82rem}.main-nav a:hover{color:var(--gold)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:17px 24px;border-radius:6px;font-weight:800;text-transform:uppercase;border:0;cursor:pointer}.btn-gold{background:var(--gold);color:#111}.btn-dark{background:#111;color:#fff}.menu-toggle{display:none;background:none;border:0;font-size:28px}
.hero{min-height:520px;position:relative;display:flex;align-items:center;padding:80px 5%;overflow:hidden;background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.93) 39%,rgba(255,255,255,.24) 68%,rgba(255,255,255,.04) 100%),url('assets/foret-aerienne.png') center/cover no-repeat}.hero-overlay{position:absolute;inset:auto 0 0 0;height:32%;background:linear-gradient(transparent,rgba(0,0,0,.15))}.hero-content{position:relative;z-index:2;max-width:710px}.eyebrow{color:var(--gold);font-weight:800;text-transform:uppercase;letter-spacing:.08em}.hero h1{font-size:clamp(2.4rem,5vw,4.4rem);line-height:1.03;margin:10px 0 20px;text-transform:uppercase}.hero h1 span{color:var(--gold)}.hero p{font-size:1.15rem;max-width:650px}.hero-drone{position:absolute;right:13%;top:26%;font-size:9rem;opacity:.12;transform:rotate(8deg)}
.services{display:grid;grid-template-columns:1fr 1fr;gap:28px;max-width:1180px;margin:-40px auto 0;padding:0 24px 70px;position:relative;z-index:5}.service-card{background:#fff;padding:34px;border:1px solid #eee;border-radius:16px;box-shadow:0 12px 35px rgba(0,0,0,.08)}.service-icon{font-size:3rem;color:var(--gold)}.service-card h2{text-transform:uppercase;font-size:1.75rem;line-height:1.15}.gold-line{width:52px;height:3px;background:var(--gold);margin:16px 0 22px}.photo{height:255px;border-radius:10px;margin:28px 0 18px;background-size:cover;background-position:center}.topo-photo{background-image:url('assets/sven-mieke-fteR0e2BzKo-unsplash.jpg')}.inspection-photo{background-image:url('assets/ian-usher-JPAfSd_acI8-unsplash.jpg')}.service-card ul{list-style:none;padding:0}.service-card li{margin:10px 0}.service-card li::before{content:'✓';color:var(--gold);margin-right:10px;font-weight:bold}.text-link{text-transform:uppercase;font-weight:800;display:inline-block;margin-top:10px}.text-link:hover{color:var(--gold)}
.detail-section{padding:85px 5%;background:#fff}.detail-section.alt{background:var(--soft)}.detail-section>div{max-width:1100px;margin:auto}.detail-section h2,.realisations h2,.contact h2{font-size:clamp(2rem,4vw,3.2rem);margin:8px 0 20px}.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:30px}.detail-grid span{padding:18px;background:#fff;border:1px solid var(--line);border-radius:8px}.alt .detail-grid span{background:#fff}
.about{padding:90px 5%;background:#111;color:#fff;scroll-margin-top:150px}.about-heading{max-width:1180px;margin:0 auto 38px}.about-heading h2{font-size:clamp(2.2rem,4.5vw,4rem);line-height:1.05;text-transform:uppercase;margin:8px 0 22px}.about-heading h2 span{color:var(--gold)}.about-grid{display:grid;grid-template-columns:minmax(260px,.82fr) minmax(360px,1.15fr);grid-template-rows:auto auto;gap:26px 46px;max-width:1180px;margin:auto;align-items:start}.about-photo{margin:0;overflow:hidden;border-radius:14px;background:#222}.about-photo img{display:block;width:100%;height:100%;object-fit:cover}.about-photo-main{grid-row:1 / span 2;height:690px}.about-photo-main img{object-position:center}.about-copy{padding:2px 0}.about-copy p{color:#d8d8d8;font-size:1.04rem}.about-copy strong{color:#fff}.about-intro{font-size:1.35rem!important;line-height:1.45;color:#fff!important;margin-top:0}.about-highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:28px 0}.about-highlights div{padding:17px 12px;border:1px solid #3b3b3b;border-radius:9px;background:#1a1a1a}.about-highlights b{display:block;color:var(--gold);font-size:1.15rem;text-transform:uppercase}.about-highlights span{display:block;margin-top:5px;color:#ddd;font-size:.82rem}.about-signature{padding-left:18px;border-left:3px solid var(--gold);font-style:italic}.about-photo-drone{height:245px;position:relative}.about-photo-drone img{object-position:center 42%}.about-photo-drone figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 18px 14px;background:linear-gradient(transparent,rgba(0,0,0,.88));font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--gold)}
.why{padding:75px 4%;text-align:center}.why h2{text-transform:uppercase;font-size:2.25rem}.gold-line.center{margin:16px auto 35px}.why-grid{display:grid;grid-template-columns:repeat(5,1fr);max-width:1200px;margin:auto}.why-grid>div{padding:22px;border-right:1px solid #ddd}.why-grid>div:last-child{border-right:0}.why-grid b{font-size:2.3rem;color:var(--gold)}.why-grid h3{text-transform:uppercase;font-size:1rem}.why-grid p{font-size:.9rem;color:#444}
.realisations{padding:80px 5%;background:#111;color:#fff}.realisations>*{max-width:1180px;margin-left:auto;margin-right:auto}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:35px}.project{padding:28px;background:#1e1e1e;border:1px solid #333;border-radius:12px}.project span{color:var(--gold);text-transform:uppercase;font-size:.8rem;font-weight:800}.project h3{font-size:1.45rem}
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;max-width:1180px;margin:auto;padding:80px 24px}.contact-item{display:inline-block;margin-top:18px;font-weight:800;font-size:1.25rem}.contact-form{display:grid;gap:16px;background:var(--soft);padding:28px;border-radius:12px}.contact-form label{font-weight:700}.contact-form input,.contact-form textarea{width:100%;margin-top:6px;padding:14px;border:1px solid #ccc;border-radius:6px;font:inherit}.form-note{font-size:.85rem;color:#666;margin:0}
footer{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:20px 5%;background:#0d0d0d;color:#fff}footer img{width:260px;height:150px;object-fit:contain;background:transparent;border-radius:0}footer a{color:var(--gold);font-weight:800}
@media(max-width:900px){.site-header{grid-template-columns:auto auto;justify-content:space-between}.header-cta{display:none}.menu-toggle{display:block}.main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;padding:20px 5%;border-bottom:1px solid #eee}.main-nav.open{display:flex}.services{grid-template-columns:1fr;margin-top:0;padding-top:30px}.about-grid{grid-template-columns:1fr 1fr;gap:24px}.about-photo-main{grid-row:auto;height:480px}.about-copy{grid-column:1 / -1;grid-row:2}.about-photo-drone{grid-column:2;grid-row:1;height:480px}.why-grid{grid-template-columns:1fr 1fr}.why-grid>div{border-right:0;border-bottom:1px solid #ddd}.project-grid{grid-template-columns:1fr}.contact{grid-template-columns:1fr}.hero{min-height:560px}.brand img{width:260px;height:180px}}
@media(max-width:560px){.why-grid,.detail-grid,.about-grid,.about-highlights{grid-template-columns:1fr}.about{padding:65px 24px}.about-photo-main,.about-photo-drone{grid-column:auto;grid-row:auto;height:390px}.about-copy{grid-column:auto;grid-row:auto}.about-photo-drone{height:260px}.about-intro{font-size:1.2rem!important}.service-card{padding:24px}.photo{height:200px}.hero{padding:60px 24px}.hero h1{font-size:2.45rem}footer{flex-direction:column;text-align:center}}

.service-hero{padding:95px 5%;background:linear-gradient(90deg,rgba(255,255,255,.97),rgba(255,255,255,.84) 62%,rgba(255,255,255,.38)),url('assets/foret-aerienne.png') center/cover}.service-hero-inner{max-width:1100px;margin:auto}.service-hero h1{font-size:clamp(2.3rem,5vw,4.2rem);line-height:1.1;max-width:850px;text-transform:uppercase}.service-hero p:not(.eyebrow){font-size:1.15rem;max-width:770px}.service-content{padding:75px max(5%,calc((100% - 1100px)/2))}.service-content h2{font-size:clamp(1.8rem,3vw,2.7rem)}.service-content p{max-width:850px}.service-content-alt{background:var(--soft)}.service-offerings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.service-offerings article{border:1px solid var(--line);border-radius:12px;padding:23px}.service-offerings h3{margin-top:0}.service-content .btn{margin-top:18px}@media(max-width:650px){.service-offerings{grid-template-columns:1fr}.service-hero{padding:65px 24px}.service-content{padding:55px 24px}}