#site-menu {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 30;
    font-family: 'Arial', sans-serif;
}

#site-menu summary {
    list-style: none;
    display: inline-flex;
    padding: 4px;
    color: #333;
    cursor: pointer;
    user-select: none;
    transition: color 0.3s;
}
#site-menu summary::-webkit-details-marker {
    display: none;
}
#site-menu summary:hover,
#site-menu summary:focus-visible,
#site-menu[open] summary {
    color: #000;
}
#site-menu summary svg {
    display: block;
    transition: transform 0.4s ease;
}
/* The cross turns a quarter-step when the menu opens */
#site-menu[open] summary svg {
    transform: rotate(45deg);
}

#site-menu ul {
    list-style: none;
    margin: 6px 0 0;
    padding: 6px 0;
    min-width: 180px;
    background: #d3d3d3;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}
#site-menu a {
    display: block;
    padding: 8px 20px;
    color: #333;
    text-decoration: none;
}
#site-menu a:hover,
#site-menu a:focus-visible {
    background: #c4c4c4;
    color: #000;
}
#site-menu a[aria-current="page"] {
    color: #808080;
}