nav {
    background-color: #333;
    z-index:50;
    position:sticky;
    top:0;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column; /* Default to column for mobile */
    justify-content: center; /* Centers items horizontally if in row */
}


nav ul li {
    position: relative;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 15px;
    display: block;
}

/* Dropdown for Septic */
.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 10;
}

.dropdown-content li {
    color: black;
}

.dropdown-content li a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Toggle for mobile */
#menu-toggle {
    display: none;
}

.menu-icon {
    display: block;
    cursor: pointer;
    padding: 15px;
    color: white;
    font-size: 24px;
}

/* Desktop styles */
@media screen and (min-width: 600px) {
    nav ul {
        flex-direction: row;
        justify-content: center; /* This will center the menu items horizontally in the nav bar */
    }

    .menu-icon {
        display: none;
    }

    #menu-toggle:checked ~ ul {
        display: flex;
    }
}

/* mobile */
@media screen and (max-width: 599px) {
    nav ul {
        display: none; /* Menu hidden by default */
    }

    #menu-toggle:checked ~ ul {
        display: flex;
        flex-direction: column; /* Ensure items are stacked */
    }

    /* Dropdown menu adjustments */
    .dropdown {
        position: relative; /* Allows dropdown content to be positioned relative to this */
    }

    .dropdown-content {
        position: static;
        display: block;
        width: 100%; /* Full width of parent */
        padding-left:20px;
    }

    /* Show dropdown on interaction - here we use click for better mobile interaction */
    .dropdown > a {
        cursor: pointer; /* Indicates clickable area */
    }

    .dropdown > a:focus + .dropdown-content,
    .dropdown > a:active + .dropdown-content {
        display: block;
    }

    nav ul li a {
        display: block;
        padding: 15px;
        text-align: left; /* You mentioned centering text */
    }

    /* This ensures each menu item, including dropdowns, is clickable */
    .dropdown-content li a {
        padding: 10px; /* Adjust padding for sub-items */
    }
}