/* Grundstil für die Navigation */
#nav-main {
    width: 100%;
    font-family: 'Roboto', sans-serif, Arial, Helvetica;
}

#nav-main ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

#nav-main > ul {
    display: flex;
}

#header #nav-main ul {
    text-transform: none;
    border-bottom: 3px solid color(display-p3 0.235 0.537 0.753);
}

#nav-main > ul > li {
    position: relative;
}

#nav-main > ul > li > a {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
}

#nav-main > ul > li:hover > a {
    font-weight: 900;
    opacity: 1;
}

/* Erste Untermenü-Ebene */
.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 200px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 100;
}

#nav-main > ul > li:hover > .submenu {
    display: block;
}
#nav-main a.active {
    font-weight: 900;
}
.submenu > li {
    position: relative;
}

.submenu > li > a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
}

.submenu > li:hover > a {
    text-decoration: underline;
    font-weight: 900;
    opacity: 1;
}

/* Zweite Untermenü-Ebene */
.submenu-level-2 {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 101;
}
.submenu-level-2 li {
    min-width: 260px;
}

.submenu > li:hover > .submenu-level-2 {
    display: block;
}

.submenu-level-2 > li > a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
}

.submenu-level-2 > li:hover > a {
    text-decoration: underline;
    font-weight: 900;
}

/* Responsives Design */
@media screen and (max-width: 768px) {
    /* Vertikale Navigation auf kleinen Bildschirmen */
    #nav-main > ul {
        flex-direction: column;
    }
    .section-heading {
        padding-top: 140px;
    }
    /* Untermenüs für mobile Ansicht anpassen */
    .submenu, .submenu-level-2 {
        position: static;
        box-shadow: none;
        width: 100%;
    }

    .submenu {
        padding-left: 20px;
    }

    .submenu-level-2 {
        padding-left: 20px;
    }

    /* Für Mobilgeräte Hover deaktivieren */
    #nav-main > ul > li:hover > .submenu,
    .submenu > li:hover > .submenu-level-2 {
        display: none;
    }

    /* Für mobile Toggle-Funktionalität mit JavaScript */
    #nav-main > ul > li.active > .submenu,
    .submenu > li.active > .submenu-level-2 {
        display: block;
    }
}