ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 10px 30px;
    border-radius: 50px;
    margin: 0;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.35), rgba(0, 68, 180, 0.15));
    backdrop-filter: blur(20px); 
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(100, 200, 255, 0.2);
    box-shadow: 
        inset 0 1px 1px rgba(255, 255, 255, 0.2), 
        0 8px 32px rgba(0, 0, 0, 0.3);
}

.nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.85); 
    padding: 8px 8px; 
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500; 
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.15); 
}

.nav-link.active {
    color: #000000;
    background-color: #ffffff; 
    box-shadow: 0 4px 12px rgba(0, 68, 180, 0.3); 
}

.btn-login,
.btn-register,
.btn-logout {
    display: inline-block;
    text-decoration: none;
    border-radius: 50px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

/* Pulsante Login (delicato, coerente con lo sfondo) */
.btn-login {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* Pulsante Registrati (in evidenza con lo sfumato blu) */
.btn-register {
    color: #ffffff;
    background: linear-gradient(
        135deg,
        rgba(0, 122, 255, 0.35),
        rgba(0, 68, 180, 0.15)
    );
    border: 1px solid rgba(100, 200, 255, 0.3);
    box-shadow:
        inset 0 1px 1px rgba(255, 255, 255, 0.2),
        0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-register:hover {
    background: linear-gradient(
        135deg,
        rgba(0, 122, 255, 0.5),
        rgba(0, 68, 180, 0.25)
    );
    transform: translateY(-1px);
}

/* Pulsante Logout (stile rosso minimal o coerente) */
.btn-logout {
    color: #ff3b30;
    background: rgba(255, 59, 48, 0.08);
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.btn-logout:hover {
    background: rgba(255, 59, 48, 0.15);
    border-color: rgba(255, 59, 48, 0.4);
    transform: translateY(-1px);
}


.desktop-auth-buttons {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-profile-widget {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.user-avatar-letter {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #007aff, #0044b4);
    color: white;
    font-weight: 600;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(100, 200, 255, 0.3);
}

.profile-ank {
    color: white;
    text-decoration: none;
}