:root {
    --primary: #6A4C93; /* Couleur IA moderne */
    --secondary: #28A2A2;
    --accent: #FF9F1C;
    --light-bg: #F8F9FA;
    --dark-text: #2B2D42;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--dark-text);
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
}

header {
    text-align: center;
    padding: 40px 0 20px;
}

h1 {
    color: var(--primary);
    font-size: 2.6rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

h2 {
    color: var(--primary);
    font-size: 2rem;
    margin-top: 60px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent);
}

h3 {
    color: var(--secondary);
    font-size: 1.5rem;
    margin-top: 40px;
}

.hero-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 12px;
    margin: 30px 0;
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

.feature-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin: 40px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    border-left: 4px solid var(--primary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.tech-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.stat-dating {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    margin: 10px 0;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.comparison-table th, .comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background-color: var(--primary);
    color: white;
}

.comparison-table tr:nth-child(even) {
    background-color: var(--light-bg);
}

.testimonial {
    font-style: italic;
    padding: 30px;
    background: var(--light-bg);
    border-radius: 12px;
    margin: 50px 0;
    position: relative;
}

.testimonial:before {
    content: """;
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 5rem;
    color: var(--accent);
    opacity: 0.2;
    font-family: Georgia, serif;
}

.cta-section {
    background: linear-gradient(135deg, var(--primary), #520A22);
    color: white;
    padding: 50px;
    border-radius: 15px;
    margin: 70px 0;
    text-align: center;
}

.legal-notes {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin: 50px 0;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

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