body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4; 
    color: #333; 
}

header {
    background-color: #13464d;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

.logo {
    flex-shrink: 0; 
}


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

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

nav a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 2rem;
}

.dataset-entry {
    border: 1px solid #ddd;
    padding: 1rem;
    border-radius: 5px;
    background-color: white; 
}

.dataset-entry h3 {
    margin-top: 0; 
}

footer {
    background-color: #333;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

.tag {
    background-color: #e0e0e0;
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
    font-size: 0.9rem;
    margin-left: 1rem;
}