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

:root {
    --primary-color: #8B4513;
    --secondary-color: #2c2c2c;
    --accent-color: #d4a574;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f8f8;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.logo img {
    height: 60px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.cta-button {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    transition: transform 0.3s, background 0.3s;
}

.cta-button:hover {
    background: #6d3410;
    transform: translateY(-2px);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    opacity: 0.95;
}

/* Section Styles */
section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* Réalisations Grid */
.realisations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.realisation-card {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    cursor: pointer;
    transition: transform 0.3s;
}

.realisation-card:hover {
    transform: scale(1.03);
}

.realisation-card img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    display: block;
}

/* Form Styles */
.form-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
}

.submit-btn:hover {
    background: #6d3410;
    transform: translateY(-2px);
}

.contact-info {
    text-align: center;
    margin-top: 3rem;
}

.contact-info h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 500;
}

/* About Section */
.about-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.about-content h3 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.about-content ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.about-content li {
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-logo img {
    height: 80px;
    width: auto;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        right: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }

    .nav-links.active {
        right: 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .realisations-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .form-container {
        padding: 2rem 1rem;
    }
}