Elegáns lebegő menü

.menu-elegant {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(14px);
}

.menu-elegant a {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 11px 20px;
    color: #cbd5e1;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.04em;
    border-radius: 40px;
    transition:
        color 0.3s ease,
        background 0.3s ease,
        transform 0.3s ease;
}

.menu-elegant a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.menu-elegant a.active {
    color: #ffffff;
    background: rgba(46, 204, 113, 0.16);
}

.menu-elegant a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 5px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #2ecc71;
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(46, 204, 113, 0.7);
}

@media (max-width: 700px) {
    .menu-elegant {
        flex-wrap: wrap;
        border-radius: 24px;
    }

    .menu-elegant a {
        padding: 9px 14px;
        font-size: 13px;
    }
}

Ehhez az elemhez nincs külön JavaScript.