/* Reset et variables CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Couleurs principales */
    --primary-navy: #0f172a;
    --primary-blue: #1e40af;
    --secondary-blue: #3b82f6;
    --accent-gold: #f59e0b;
    --accent-gold-light: #fbbf24;
    
    /* Couleurs neutres */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Typographie */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Base styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: var(--gray-700);
    background-color: var(--white);
    font-size: 16px;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.8;
}

.text-large {
    font-size: 1.25rem;
    line-height: 1.7;
}

.text-center {
    text-align: center;
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--accent-gold);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: var(--accent-gold-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition-normal);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-navy);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width var(--transition-normal);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-700);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 8rem 0 6rem;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.pexels.com/photos/3760067/pexels-photo-3760067.jpeg?auto=compress&cs=tinysrgb&w=1920&h=1080&fit=crop') center/cover;
    opacity: 0.1;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text h1 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.hero-text p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image {
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

/* Contact Hero */
.contact-hero,
.legal-hero {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 6rem 0 4rem;
    margin-top: 80px;
    text-align: center;
}

.contact-hero-content h1,
.legal-hero-content h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.contact-hero-content p,
.legal-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* Section générique */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--gray-600);
}

/* Services Section */
.services {
    background: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 2rem;
    color: var(--white);
}

.service-card h3 {
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.service-features li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-600);
}

.service-features li::before {
    content: '✓';
    color: var(--accent-gold);
    font-weight: bold;
    margin-right: var(--spacing-xs);
}

/* Expertise Section */
.expertise {
    background: var(--white);
}

.expertise-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.expertise-text h2 {
    margin-bottom: var(--spacing-lg);
}

.expertise-text p {
    margin-bottom: var(--spacing-md);
}

.expertise-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.highlight-item {
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: 12px;
    border-left: 4px solid var(--accent-gold);
}

.highlight-item h4 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.highlight-item p {
    font-size: 0.9rem;
    margin: 0;
    color: var(--gray-600);
}

.expertise-image img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

/* Stats Section */
.stats {
    background: var(--primary-navy);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item h3 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-primary);
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
}

/* Process Section */
.process {
    background: var(--gray-50);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--accent-gold);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.process-step h3 {
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.process-step p {
    color: var(--gray-600);
}

/* Team Section */
.team {
    background: var(--white);
}

.team-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.team-image {
    text-align: center;
}

.team-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.team-info h2 {
    margin-bottom: var(--spacing-lg);
}

.team-info p {
    margin-bottom: var(--spacing-md);
}

.certifications {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.certification {
    background: var(--gray-100);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

/* Contact CTA Section */
.contact-cta {
    background: var(--gray-50);
    text-align: center;
}

.cta-content h2 {
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Contact Page */
.contact-page {
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
    color: var(--white);
}

.contact-details h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
    font-size: 1.1rem;
}

.contact-details p {
    margin: 0;
    color: var(--gray-600);
}

.contact-details a {
    color: var(--primary-blue);
    text-decoration: none;
}

.contact-details a:hover {
    text-decoration: underline;
}

.legal-info {
    background: var(--gray-100);
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-top: var(--spacing-xl);
}

.legal-info h4 {
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.legal-info p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.contact-form {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color var(--transition-normal);
    font-family: var(--font-primary);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    cursor: pointer;
    font-size: 0.9rem;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-label a {
    color: var(--primary-blue);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

/* Messages */
.success-message,
.error-message {
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.success-message {
    background: #d1fae5;
    border: 1px solid #10b981;
    color: #065f46;
}

.error-message {
    background: #fee2e2;
    border: 1px solid #ef4444;
    color: #991b1b;
}

.success-message h3,
.error-message h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.2rem;
}

/* Legal Content */
.legal-content {
    background: var(--white);
}

.legal-text {
    max-width: 800px;
    margin: 0 auto;
}

.legal-text h2 {
    color: var(--primary-blue);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--gray-200);
}

.legal-text h3 {
    color: var(--gray-800);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.legal-text ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.legal-text li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.legal-text strong {
    color: var(--gray-900);
}

/* Footer */
footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
    color: var(--gray-400);
    text-decoration: none;
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
    display: block;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--gray-500);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .expertise-content,
    .team-content {
        grid-template-columns: 1fr;
    }

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

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

    .nav-links {
        display: none;
    }

    .hero {
        padding: 6rem 0 4rem;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .hero-cta,
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .expertise-highlights {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

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

    .stat-item h3 {
        font-size: 2.5rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.service-card,
.process-step,
.stat-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Utilities */
.text-primary {
    color: var(--primary-blue);
}

.text-accent {
    color: var(--accent-gold);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
}