:root {
    --bg-main: #ffffff; 
    --text-main: #1a1a1a; 
    --text-muted: #666666; 
    --accent-color: #C3A981; 
    --card-bg: #fdfdfd;
    
    /* Le bandeau est maintenant un gris clair élégant, un peu plus foncé que le fond blanc */
    --header-bg: rgba(242, 242, 242, 0.95); 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* Header & Navigation */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background-color: var(--header-bg);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px); /* Floute légèrement ce qui passe derrière le bandeau */
    border-bottom: 1px solid rgba(0, 0, 0, 0.08); /* Une ligne un peu plus marquée pour détacher le bandeau */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03); /* Petite ombre douce */
}

.nav-brand {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: 2px;
    text-decoration: none; 
}

nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

nav ul li a {
    color: var(--text-muted);
    font-weight: 400;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
}

nav ul li a:hover {
    color: var(--accent-color);
}

.btn-nav {
    border: 1px solid var(--accent-color);
    padding: 8px 20px;
    border-radius: 4px;
    color: var(--accent-color) !important;
}

.btn-nav:hover {
    background-color: var(--accent-color);
    color: #ffffff !important;
}

/* Hero Section (Design épuré avec fond image transparent) */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    
    /* CORRECTION ICI : Le centre est blanc pur à 20% pour le logo, puis s'estompe fortement (0.3) sur les bords pour bien voir l'image de fond */
    background: radial-gradient(circle at center, rgba(255,255,255,1) 26%, rgba(255,255,255,0.4) 100%), url('fond-hero.png') center/cover no-repeat;
    
    padding-top: 100px;
    padding-bottom: 50px;
}

.hero-content {
    max-width: 900px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 30px;
    font-weight: 300;
    letter-spacing: 1px;
    color: var(--text-main);
}

/* Logo central qui se fond dans le blanc */
.hero-logo {
    width: 100%;
    max-width: 450px;
    height: auto;
    display: block;
    margin: 0 auto 40px auto;
    transition: transform 0.4s ease;
}

.hero p {
    font-size: 1.15rem;
    margin-bottom: 40px;
    color: var(--text-main); 
    font-weight: 400;
    max-width: 750px;
}

.btn-primary {
    background-color: var(--text-main); 
    color: #ffffff;
    padding: 14px 30px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block; 
    margin-top: 10px;
}

.btn-primary:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Vision Section */
.vision {
    padding: 100px 0;
    background-color: #fafafa; 
    text-align: center;
}

.vision h2 {
    color: var(--accent-color);
    margin-bottom: 25px;
    font-weight: 400;
    letter-spacing: 1px;
}

.vision p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: auto;
    color: var(--text-muted);
}

/* Ateliers Section */
.ateliers {
    padding: 100px 0;
    background-color: var(--bg-main);
}

.ateliers h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.2rem;
    color: var(--text-main);
    font-weight: 300;
}

.grid-ateliers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.card {
    background-color: var(--card-bg);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #eeeeee; 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03); 
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(195, 169, 129, 0.15); 
    border-color: rgba(195, 169, 129, 0.4);
}

.icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: var(--text-main);
    font-weight: 600;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer (Reste foncé pour "fermer" la page avec classe) */
footer {
    background-color: #101010;
    color: #ffffff;
    padding: 80px 0 40px;
    border-top: 4px solid var(--accent-color);
    display: flex;
    justify-content: center;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

footer h2 {
    margin-bottom: 20px;
    font-weight: 300;
}

footer p {
    margin-bottom: 35px;
    color: #aaaaaa;
    max-width: 600px;
}

footer .btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
}

footer .btn-primary:hover {
    background-color: #ffffff;
    color: var(--text-main);
}

.footer-info {
    margin-top: 50px;
    font-size: 0.9rem;
    color: #666666;
}

/* Responsive pour mobiles */
@media (max-width: 768px) {
    .hero h1 { 
        font-size: 2rem; 
        margin-top: 20px;
    }
    .hero-logo { 
        max-width: 85%; 
    }
    nav ul { 
        display: none; 
    }
    
    footer {
        padding: 50px 0 30px; 
    }
    
    footer h2 {
        font-size: 1.6rem;
    }
    
    .btn-primary {
        padding: 12px 20px;
        font-size: 1rem;
        width: 100%; 
        max-width: 300px;
    }
    
    .footer-info {
        margin-top: 30px;
        font-size: 0.85rem;
    }
}