:root {
--dark: #1a1a1a;
--gold: #d4af37;
--gold-hover: #b8962e;
--concrete: #333333;
--white: #ffffff;
--light-bg: #f9f9f9;
}

* { box-sizing: border-box; }

body {
font-family: 'Roboto', sans-serif;
margin: 0;
padding: 0;
line-height: 1.6;
color: var(--dark);
background-color: var(--white);
scroll-behavior: smooth;
}

/* NAVIGATION */
header {
background: var(--white);
display: flex;
justify-content: space-between;
align-items: center;
padding: 15px 8%;
position: sticky;
top: 0;
z-index: 2000;
box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.brand { display: flex; align-items: center; gap: 15px; }
.logo-img { height: 65px; width: auto; }
.company-name { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.5rem; letter-spacing: -0.5px; }
.slogan { font-size: 0.75rem; color: var(--gold); font-weight: bold; letter-spacing: 2.5px; display: block; }

nav a { text-decoration: none; color: var(--dark); margin-left: 25px; font-weight: 500; font-size: 0.9rem; }
.btn-nav { background: var(--concrete); color: white !important; padding: 10px 20px; border-radius: 4px; }

/* HERO */
.hero {
height: 60vh;
background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('images/hero-bg.JPG');
background-size: cover;
background-position: center;
display: flex; align-items: center; justify-content: center; text-align: center; color: white;
}
.hero h1 { font-family: 'Montserrat', sans-serif; font-size: 3.5rem; margin-bottom: 20px; }
.hero-btns { display: flex; justify-content: center; gap: 20px; }
.btn { padding: 15px 30px; text-decoration: none; font-weight: bold; border-radius: 5px; transition: 0.4s; }
.btn-gold { background: var(--gold); color: white; }
.btn-outline { border: 2px solid white; color: white; }
.btn:hover { transform: translateY(-3px); }

/* BARRE NORMES */
.normes-bar {
background: var(--dark); color: white; padding: 20px 5%;
display: flex; justify-content: space-around; flex-wrap: wrap;
}
.norme-item span { color: var(--gold); margin-right: 10px; }

/* EXPERTISES */
.section { padding: 80px 8%; }
.bg-light { background: var(--light-bg); }
.title-main { text-align: center; font-family: 'Montserrat', sans-serif; font-size: 2.2rem; margin-bottom: 50px; }
.title-main::after { content: ''; display: block; width: 60px; height: 4px; background: var(--gold); margin: 10px auto; }

.grid-expert { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.card-expert { background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: 0.3s; }
.card-expert:hover { transform: translateY(-10px); border-bottom: 4px solid var(--gold); }
.card-expert img { width: 100%; height: 230px; object-fit: cover; }
.card-content { padding: 20px; }

/* VALEURS */
.card-valeur { text-align: center; padding: 30px; background: white; border-radius: 10px; box-shadow: 0 4px 10px rgba(0,0,0,0.03); }
.icon-gold { font-size: 2.5rem; margin-bottom: 10px; display: block; }

/* GALERIE */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; }
.gallery-item { position: relative; overflow: hidden; border-radius: 8px; height: 250px; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
.gallery-item:hover img { transform: scale(1.1); }
.overlay-text {
position: absolute; bottom: 0; left: 0; right: 0; padding: 10px;
background: rgba(0,0,0,0.7); color: white; text-align: center;
transform: translateY(100%); transition: 0.3s;
}
.gallery-item:hover .overlay-text { transform: translateY(0); }

/* CONTACT */
.section-contact { background: var(--concrete); color: white; padding: 80px 8%; }
.contact-wrapper { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 40px; max-width: 1200px; margin: 0 auto; }
.identite-artisan { border-left: 3px solid var(--gold); padding-left: 20px; margin-top: 20px; color: #ccc; }
.btn-action { display: block; padding: 18px 30px; text-decoration: none; color: white; border: 2px solid white; margin-bottom: 15px; text-align: center; font-weight: bold; border-radius: 5px; }
.btn-action.gold { background: var(--gold); border-color: var(--gold); }

footer { background: #000; color: #555; padding: 30px; text-align: center; font-size: 0.8rem; }