/* --- Variables & Reset --- */
:root {
    --primary-color: #2c3e50; /* Bleu gris très professionnel */
    --secondary-color: #d4af37; /* Or (Gold) pour l'aspect patrimoine/valeur */
    --bg-color: #f4f7f6;
    --text-color: #333;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    scroll-behavior: smooth; /* Défilement fluide lors du clic sur le menu */
}

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

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    color: var(--primary-color);
    font-size: 32px;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Header & Navigation --- */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    color: var(--primary-color);
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 2px;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 14px;
    text-transform: uppercase;
    transition: color 0.3s;
}

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

/* --- Boutons --- */
.btn-primary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 12px 25px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
    text-transform: uppercase;
    font-size: 14px;
}

.btn-primary:hover {
    background-color: #b5952f;
    transform: translateY(-2px);
}

/* --- Hero Section (Accueil) --- */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(44, 62, 80, 0.85), rgba(44, 62, 80, 0.85)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 30px;
    color: var(--secondary-color);
}

.hero-features {
    list-style: none;
    font-size: 20px;
    margin-bottom: 40px;
    text-align: left;
    display: inline-block;
}

.hero-features li {
    margin-bottom: 10px;
}

/* --- Services (Expertises) --- */
.services {
    padding: 100px 0;
    background-color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

/* --- Recherche de coordonnées (Service sur mesure) --- */
.highlight-section {
    padding: 100px 0;
    background-color: var(--primary-color);
    color: var(--white);
}

.highlight-section .section-title {
    color: var(--secondary-color);
}

.pricing-card {
    background-color: var(--white);
    color: var(--text-color);
    max-width: 600px;
    margin: 0 auto;
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.pricing-card h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.price {
    font-size: 48px;
    font-weight: bold;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.price span {
    font-size: 16px;
    color: #666;
    display: block;
    font-weight: normal;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.pricing-features li::before {
    content: "✓";
    color: var(--secondary-color);
    font-weight: bold;
    margin-right: 10px;
}

/* --- Contact --- */
.contact {
    padding: 100px 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    background-color: var(--bg-color);
    padding: 40px;
    border-radius: 8px;
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 24px;
}

.contact-info p {
    margin-bottom: 15px;
    font-size: 16px;
}

.contact-info a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    background-color: var(--bg-color);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

/* --- Footer & Mentions Légales --- */
footer {
    background-color: #1a252f;
    color: #a0aab5;
    padding: 60px 0 20px;
    font-size: 12px;
}

.legal-text {
    margin-bottom: 40px;
}

.legal-text h3 {
    color: var(--white);
    font-size: 16px;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.legal-text p {
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid #2c3e50;
    padding-top: 20px;
    color: var(--white);
    font-size: 14px;
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 5px 10px;
    }

    .hero h2 {
        font-size: 28px;
    }
    
    .hero-features {
        font-size: 16px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}