body {
    margin: 0;
    padding-top: 70px;
    font-family: Arial;
    text-align: center;
    background-color: #f4f4f4;
}

/* Header / titre */
h1 {
    margin-top: 30px;
    font-size: 2.2em;
    color: #111;
}

/* Sous-titres */
h2 {
    color: #333;
    margin-top: 30px;
}

/* MENU MODERNE */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #1f2937;
    padding: 15px;
    text-align: center;
    z-index: 1000;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    padding: 10px 15px;
    border-radius: 8px;
    transition: 0.3s;
}

nav a:hover {
    background: #3b82f6;
}

/* IMAGE MODERNE */
img {
    width: 300px;
    margin-top: 20px;
    border-radius: 5px;}


/* PARAGRAPHES */
p {
    font-size: 1.1em;
    line-height: 1.6;
    margin: 15px;
}