body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    box-sizing: border-box;
}

main {
    flex: 1;
}

footer {
    background: #333;
    color: #fff;
    padding: 5px 20px;
    text-align: center;
    box-sizing: border-box;
    font-size: 0.9em;
}

/* CSS pro dropdown menu na hover */
.navbar .dropdown:hover .dropdown-menu {
    display: block;
    margin-top: 0;
}