/* Light theme (Világos) */
body {
    background-color: #f8f9fa;
    color: #212529;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
}
header, nav {
    background-color: #ffffff;
    border-bottom: 1px solid #dee2e6;
    padding: 10px;
}
nav a {
    color: #007bff;
    text-decoration: none;
    margin: 0 10px;
}
nav a:hover {
    text-decoration: underline;
}
main {
    padding: 20px;
}
footer {
    background-color: #f1f3f5;
    text-align: center;
    padding: 10px;
    font-size: 0.9em;
    color: #6c757d;
}
select {
    padding: 4px;
    border-radius: 4px;
}
button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
}
button:hover {
    background-color: #0056b3;
}