body {
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

header {
    background-color: #003366;
    color: white;
    padding: 2rem 1rem;
    text-align: center;
}

nav {
    background-color: #e0e0e0;
    padding: 1rem;
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline;
    margin: 0 1rem;
}

nav a {
    text-decoration: none;
    color: #003366;
    font-weight: bold;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    background-color: white;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
    border-radius: 8px;
}

section {
    margin-bottom: 2rem;
}

h1, h2, h3 {
    color: #003366;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #003366;
    color: white;
}

.lang-switch{
    position: fixed;
    top: 20px;
    right: 30px;
    font-size: 14px;
    z-index: 1000;

    background-color: white;
    padding: 6px 10px;
    border-radius: 6px;
    box-shadow: 0 0 6px rgba(0,0,0,0.15);
}

.lang-switch a{
    text-decoration: none;
    margin: 0 5px;
    color: #333;
}

.lang-switch a.active{
    color: red;
    font-weight: bold;
}

.lang-switch a:hover{
    text-decoration: underline;
}