/* --- Variables & Reset --- */
:root {
    --primary-color: #1a2a3a; /* Bleu Nuit Profond */
    --accent-color: #c5a059;  /* Or / Sable */
    --text-color: #333;
    --bg-light: #f9f9f9;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Lato', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    width: 100%;
    display: block;
}

/* --- Utilitaires --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.bg-dark {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary {
    display: inline-block;
    background: var(--accent-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 2px;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 1px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #b08d4b;
    transform: translateY(-2px);
}

.btn-outline {
    display: inline-block;
    border: 2px solid var(--white);
    color: var(--white);
    padding: 12px 30px;
    text-transform: uppercase;
    font-weight: bold;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary-color);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
}

.section-title p {
    color: #777;
    font-style: italic;
}

/* --- Navbar --- */
.navbar {
    position: sticky;
    top: 0;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    height: 80px;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-color);
}

.btn-nav {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 20px;
}

.btn-nav:hover {
    background: var(--accent-color);
}

.burger {
    display: none;
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1618221195710-dd6b41faaea6?ixlib=rb-1.2.1&auto=format&fit=crop&w=1600&q=80') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 42, 58, 0.5); /* Overlay bleu foncé */
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 20px;
    animation: fadeInUp 1.5s ease;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-weight: 300;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-img img {
    border-radius: 4px;
    box-shadow: 20px 20px 0 var(--accent-color);
}

.partner-box {
    margin-top: 30px;
    padding: 20px;
    background: #fff8e8;
    border-left: 4px solid var(--accent-color);
    font-style: italic;
}

.partner-box a {
    color: var(--primary-color);
    font-weight: bold;
    border-bottom: 1px solid var(--primary-color);
}

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

.service-card {
    background: var(--white);
    padding: 40px;
    text-align: center;
    border-radius: 4px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.service-card .icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

/* --- Portfolio --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
}

.gallery-item img {
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
    padding: 20px;
    opacity: 0;
    transition: var(--transition);
    transform: translateY(20px);
}

.gallery-item:hover .overlay {
    opacity: 1;
    transform: translateY(0);
}

/* --- CTA Section --- */
.cta-section {
    background: var(--accent-color);
    color: var(--white);
    padding: 80px 20px;
    text-align: center;
}

.cta-section h2 {
    color: var(--white);
}

.cta-section p {
    margin-bottom: 30px;
    font-size: 1.2rem;
}

/* --- Contact Section --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h2 {
    color: var(--white);
}

.contact-info ul {
    margin-top: 30px;
}

.contact-info li {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.contact-info i {
    color: var(--accent-color);
    margin-right: 15px;
    font-size: 1.2rem;
}

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

.contact-form input, 
.contact-form select, 
.contact-form textarea {
    padding: 15px;
    margin-bottom: 15px;
    border: none;
    border-radius: 2px;
    font-family: inherit;
}

/* --- Footer --- */
footer {
    background: #111;
    color: #888;
    padding: 20px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.socials a {
    color: #888;
    margin-left: 15px;
    transition: var(--transition);
}

.socials a:hover {
    color: var(--accent-color);
}

/* --- Responsive (Mobile) --- */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0px;
        height: 92vh;
        top: 80px;
        background-color: var(--white);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
    }

    .nav-links li {
        margin: 30px 0;
    }

    .burger {
        display: block;
    }

    .nav-active {
        transform: translateX(0%);
    }

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

    .footer-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px;
    transition: all 0.3s ease;
}

.toggle .line1 { transform: rotate(-45deg) translate(-5px, 6px); }
.toggle .line2 { opacity: 0; }
.toggle .line3 { transform: rotate(45deg) translate(-5px, -6px); }