/* Base nav style */
nav.topnav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: #333;
    width: 100%;
}

/* Unordered list styling */
nav.topnav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

/* List items */
nav.topnav li {
    flex: 1;
}

/* Links */
nav.topnav li a {
    display: flex;
    padding: 14px 16px;
    justify-content: center;
    color: white;
    text-decoration: none;
}

/* Hover effect */
nav.topnav li a:hover {
    background-color: #111;
}

/* Active link */
nav.topnav li a.active {
    background-color: #04AA6D;
}

/* Responsive: Stack items vertically */
@media screen and (max-width: 600px) {
    nav.topnav ul {
        flex-direction: column;
    }

    nav.topnav li {
        text-align: left;
    }

    nav.topnav li a {
        width: 100%;
    }
}