/* Variabili globali per i colori (Tema Scuro) */
:root {
    --bg-color: #0f172a; /* Blu scuro */
    --surface-color: #1e293b; /* Blu leggermente più chiaro per le card */
    --text-main: #f8fafc; /* Bianco sporco */
    --text-muted: #94a3b8; /* Grigio chiaro per testi secondari */
    --primary-color: #3b82f6; /* Blu acceso per i bottoni/link */
    --primary-hover: #2563eb;
    --accent-color: #10b981; /* Verde smeraldo per azioni positive */
}

/* Reset base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Permette al footer di stare in basso */
    line-height: 1.6;
}

main {
    flex: 1; /* Occupa tutto lo spazio disponibile tra header e footer */
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--surface-color);
    border-bottom: 1px solid #334155;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease-in-out;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: #334155;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.user-menu span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background-color: var(--surface-color);
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid #334155;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================
   BOTTONI GLOBALI (Blindati contro il default del browser)
============================ */
.btn-primary, .btn-secondary {
    display: inline-block;
    text-align: center;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-decoration: none !important; /* Rimuove lo stile link */
}

/* Bottone Blu Scintillante */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2563eb) !important;
    color: white !important;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(37, 99, 235, 0.4);
}

/* Bottone Secondario Scuro/Contornato */
.btn-secondary {
    background-color: rgba(15, 23, 42, 0.6) !important;
    color: var(--text-main) !important;
    border: 1px solid #475569 !important;
}

.btn-secondary:hover {
    background-color: rgba(59, 130, 246, 0.1) !important;
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

/* ============================
   RESPONSIVE (Tablet & Mobile)
============================ */
/* ============================
   RESPONSIVE & MENU HAMBURGER
============================ */
/* Nascondiamo il bottone hamburger su schermi grandi (PC) */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.8rem;
    cursor: pointer;
    transition: color 0.2s;
}

.hamburger-btn:hover {
    color: var(--primary-color);
}

/* Tablet (fino a 1024px) - ATTIVIAMO IL MENU A TENDINA QUI */
@media (max-width: 1024px) {
    main { 
        padding: 1.5rem; 
    }

    .navbar {
        flex-wrap: wrap; /* Permette al menu di scendere sotto il logo */
    }

    .hamburger-btn {
        display: block; /* Mostriamo il bottone su tablet e telefoni */
    }

    /* Nascondiamo la lista orizzontale e la prepariamo per la tendina */
    .nav-links {
        display: none; 
        width: 100%;
        flex-direction: column;
        align-items: center;
        gap: 1.2rem;
        padding-top: 1.5rem;
        padding-bottom: 1rem;
        margin-top: 1rem;
        border-top: 1px solid #334155;
    }

    /* La classe "magica" aggiunta dal Javascript */
    .nav-links.active {
        display: flex;
        animation: fadeIn 0.3s ease-in-out;
    }

    .user-menu {
        width: 100%;
        justify-content: center;
    }
}

/* Smartphone (fino a 768px) */
@media (max-width: 768px) {
    main { 
        padding: 1rem; /* Sui telefoni stringiamo ulteriormente il padding ai lati */
    }
    /* Non serve ripetere le regole della navbar, vengono ereditate dai 1024px in giù! */
}

/* Piccola animazione fluida per l'apertura del menu */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================
   FOOTER PROFESSIONALE
============================ */
.site-footer {
    background-color: var(--surface-color);
    border-top: 1px solid #334155;
    padding: 3rem 2rem 1rem 2rem;
    margin-top: auto; /* Lo spinge sempre a fondo pagina */
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 2rem;
}

.footer-column h3.footer-logo {
    color: var(--primary-color);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.footer-column h4 {
    color: var(--text-main);
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
}

.footer-column p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-column ul {
    list-style: none;
    padding: 0;
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul li a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease-in-out;
}

.footer-column ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px dashed #334155;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Tablet & Mobile Footer */
@media (max-width: 768px) {
    .site-footer {
        padding: 2rem 1rem 1rem 1rem;
    }
    .footer-container {
        grid-template-columns: 1fr; /* Le colonne diventano una sola colonna su telefono */
        text-align: center;
        gap: 1.5rem;
    }
}