.top-nav {
    position: relative;
}

.hamburger {
    display: none;
    cursor: pointer;
    font-size: 30px;
    padding: 10px;
    color: var(--text-color);
}

.nav-links {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: var(--secondary-color);
}

.nav-links li {
    float: left;
}

.nav-links li a {
    display: block;
    color: var(--text-color);
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.nav-links li a:hover {
    background-color: var(--primary-color);
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        display: none;
        width: 100%;
        padding: 0;
    }

    .nav-links li {
        float: none;
    }

    .nav-links li a {
        text-align: left;
    }

    .nav-links.active {
        display: block;
    }
}