/* Navigatiebalk container */
nav {
    box-sizing: border-box;
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: inline-block;
    border: 2px solid white;
    border-radius: 30px;
    z-index: 10;
    background-color: black;
}

/* Hoofdmenu UL */
nav > .main-navigation-list {
    position: relative;
    display: flex;
    margin: 0;
    padding: 0 30px;
    list-style-type: none;
}

/* Hoofdmenu items */
nav > .main-navigation-list > li {
    position: relative;
    margin-right: 55px;
    border: 2px solid transparent;
    border-radius: 5px;
    padding: 20px;
    transition: background 0.2s;
}

/* Knoppen in hoofdmenu */
nav .main-navigation-list > li > button {
    all: unset;
    cursor: pointer;
    color: red;
    font-family: "Trebuchet MS", sans-serif;
    font-size: 1.5em;
    text-transform: uppercase;
    transition: color 0.2s;
}

/* Hover op hoofdmenu item */
nav > .main-navigation-list > li:hover {
    background: black;
}

nav > .main-navigation-list > li:hover > button {
    color: white;
}

/* Submenu UL */
nav > .main-navigation-list li ul {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    top: 100%;
    left: 0;
    display: block;
    margin: 0;
    padding: 0;
    background: black;
    border-radius: 5px;
    transition: opacity 0.2s, visibility 0.2s;
    box-shadow: 0px 3px 5px 2px white;
    min-width: 180px;
    list-style-type: none;
    z-index: 999;
}

/* Submenu tonen bij hover */
nav > .main-navigation-list li:hover ul {
    visibility: visible;
    opacity: 1;
}

/* Submenu items LI */
nav > .main-navigation-list li ul li {
    margin: 0;
    padding: 0;
    border-bottom: 1px solid #333;
}

/* Submenu knoppen */
nav .main-navigation-list li ul li button {
    all: unset;
    display: block;
    width: 100%;
    padding: 10px;
    font-family: "Trebuchet MS", sans-serif;
    font-size: 1.2em;
    text-align: center;
    color: red;
    text-transform: none;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

/* Hover op submenu */
nav > .main-navigation-list li ul li:hover {
    background: #111;
}

nav > .main-navigation-list li ul li:hover button {
    color: white;
}

/* Mobielvriendelijke aanpassingen */
@media (max-width: 768px) {
    nav > .main-navigation-list {
        flex-direction: column;
        align-items: c