/* Stili aggiuntivi per migliorare la navigazione */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.3s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
}

.back-to-top:hover {
    background-color: #3367d6;
}

/* Miglioramenti per la stampa */
@media print {
    .nav, .back-to-top, footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        color: #000;
        background-color: #fff;
    }
    
    a {
        text-decoration: none;
        color: #000;
    }
    
    .graphic {
        max-width: 100%;
        page-break-inside: avoid;
    }
    
    h2, h3 {
        page-break-after: avoid;
    }
    
    p, li {
        page-break-inside: avoid;
    }
}

/* Animazioni per migliorare l'esperienza utente */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

/* Miglioramenti per l'accessibilità */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}