.nando-menu-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.98);
    z-index: 999999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
body.admin-bar .nando-menu-overlay {
    top: var(--wp-admin--admin-bar--height, 32px);
    height: calc(100% - var(--wp-admin--admin-bar--height, 32px));
}
.nando-menu-overlay.open {
    opacity: 1;
    visibility: visible;
}
.nando-menu-close {
    position: absolute;
    top: 30px; right: 40px;
    background: none; border: none;
    color: #0ff;
    font-size: 60px;
    cursor: pointer;
    text-shadow: 0 0 10px #0ff;
    transition: transform 0.3s ease, color 0.3s ease, text-shadow 0.3s ease;
}
.nando-menu-close:hover {
    transform: scale(1.1) rotate(90deg);
    color: #f0f;
    text-shadow: 0 0 15px #f0f, 0 0 30px #f0f;
}
.nando-neon-nav {
    list-style: none;
    padding: 0; margin: 0;
    text-align: center;
}
.nando-neon-nav li {
    margin: 25px 0;
}
.nando-neon-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 36px;
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    letter-spacing: 3px;
    transition: all 0.3s ease;
}
.nando-neon-nav a:hover {
    color: #0ff;
    text-shadow: 0 0 10px #0ff, 0 0 20px #0ff, 0 0 40px #0ff;
}
@media screen and (max-width: 768px) {
    .nando-neon-nav a { font-size: 24px; }
    .nando-menu-close { font-size: 40px; top: 20px; right: 20px; }
}