/* Style général */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    color: #333;
    background-color: #f4f4f4;
}

/* En-tête */
header {
    background: #2c3e50;
    color: white;
    padding: 2rem;
    text-align: center;
}

/* Sections */
section {
    padding: 20px;
    max-width: 800px;
    margin: 20px auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Pied de page */
footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    color: #777;
}