body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background-color: #f5f7fa;
    color: #333;
}

/* Barre de navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #1e2a38;
    padding: 1rem 2rem;
}
.navbar .logo {
    color: white;
    font-size: 1.3rem;
    font-weight: bold;
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}
.nav-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}
.nav-links a:hover {
    color: #00c8ff;
}

/* Section hero */
.hero {
    text-align: center;
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #90c8ff, #905f99);
    color: white;
}
.hero h1 {
    font-size: 2.5rem;
}
.hero .btn {
    background: white;
    color: #005f99;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}
.hero .btn:hover {
    background: #005f99;
    color: white;
}

/* Galerie */
.gallery {
    padding: 4rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, #a0a8af, #a0afa9);
}
.gallery-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}
.gallery-container img {
    width: 280px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}
.gallery-container img:hover {
    transform: scale(1.05);
}

/* Section contact */
.contact {
    padding: 3rem 2rem;
    text-align: center;
    background: #e8f4fa;
}
.contact a {
    color: #005f99;
    text-decoration: none;
}
.contact a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background: #1e2a38;
    color: white;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        text-align: center;
    }
    .gallery-container img {
        width: 90%;
    }
}