.top_menu {
    background-color: var(--menu-background-color);
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
}

.top_menu li {
    position: relative;
}

.top_menu li a {
    display: inline-block;
    padding: 20px 10px;
    text-decoration: none;
    color: #ffffff;
    font-weight: bolder;
}

.top_menu ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    list-style: none;
    padding: 0;
    margin: 0;
    min-width: 150px;
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.top_menu li:hover > ul {
    display: block;
}

.top_menu ul li a {
    padding: 10px;
    color: #ffffff;
}

.top_menu ul li a:hover {
    background-color: var(--menu-background-color);
}

#theme-toggle {
    z-index: 100;
    border: 0px;
    left: 40px;
    bottom: 20px;
    position: fixed;
    padding: 5px;
    color: #ffffff;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0);
}