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

body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

/* Header */
header {
    background-color: #004d99;
    padding: 20px 0;
    text-align: center;
}

nav ul {
    list-style-type: none;
}

nav ul li {
    display: inline;
    margin: 0 20px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 18px;
    padding: 10px;
    border-radius: 5px;
}

nav ul li a:hover {
    background-color: #003366;
}

/* Sections */
main {
    padding: 40px;
    text-align: center;
}

.bio {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    margin: 0 auto;
}

.bio h1 {
    color: #004d99;
    font-size: 36px;
    margin-bottom: 20px;
}

.bio p {
    font-size: 18px;
    color: #555;
    margin-bottom: 20px;
}

.portrait {
    width: 300px;
    height: auto;
    border-radius: 50%;
    border: 5px solid #004d99;
    margin-bottom: 20px;
}

button {
    background-color: #004d99;
    color: white;
    padding: 10px 20px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #003366;
}

footer {
    background-color: #004d99;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

/* Réactivité mobile */
@media (max-width: 768px) {
    nav ul {
        display: flex;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 10px;
    }

    .bio {
        padding: 20px;
        margin: 10px;
    }

    .bio h1 {
        font-size: 28px;
    }

    .bio p {
        font-size: 16px;
    }

  
  @media screen and (max-width: 600px) {
  header nav ul {
    text-align: left;
  }

  header nav ul li {
    display: block;
    margin-right: 0;
  }
}