/* Stili per il menu dropdown */
.main-nav {
    background: #333;
    margin-bottom: 30px;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    position: relative;
}

.main-nav li {
    position: relative;
}

.main-nav a {
    display: block;
    padding: 12px 20px;
    color: white;
    text-decoration: none;
    transition: background 0.3s;
}

.main-nav a:hover {
    background: #444;
}

/* Dropdown menu */
.main-nav li ul {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #333;
    flex-direction: column;
    display: none;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.main-nav li:hover ul {
    display: flex;
}

.main-nav li ul li {
    width: 100%;
}

.main-nav li ul a {
    padding: 10px 20px;
}

.main-nav li ul a:hover {
    background: #444;
}

/* Indicatore dropdown */
.main-nav li.has-children > a::after {
    content: " ▼";
    font-size: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li ul {
        position: static;
        display: none;
        padding-left: 20px;
    }
    
    .main-nav li:hover ul {
        display: none;
    }
    
    .main-nav li.active ul {
        display: block;
    }
}