body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f8;
}

/* MENU */
.menu {
    background: #0b1d39;
    padding: 15px;
    display: flex;
    gap: 15px;
}

.menu a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.menu a:hover {
    color: #f0c040;
}

/* JUMBOTRON */
.jumbotron {
    background: linear-gradient(120deg, #0b1d39, #1f3b73);
    color: white;
    padding: 60px;
    text-align: center;
}

.jumbotron h1 {
    margin: 0;
    font-size: 40px;
}

/* CONTENU */
.content {
    padding: 40px;
    max-width: 1000px;
    margin: auto;
    background: white;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 20px;
    background: #0b1d39;
    color: white;
    margin-top: 40px;
}