body {
    background-image: linear-gradient(white, white), url('sfondo.jpg');
    font-family: Arial, Helvetica, sans-serif;

    background-size:
            100% 50px,
            cover;

    background-position:
            top,
            center 50px;
    background-repeat: no-repeat, repeat;
}

nav {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    height: 50px;

    background: linear-gradient(90deg, #02537e, #0378b6);
    place-items: center;

    border-bottom: 2px solid rgba(0, 0, 0, 0.2);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    margin: -8px;
}

nav > a {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;

    width: 100%;
    height: 100%;

    color: white;
    font-size: 17px;
    font-weight: 400;
    text-decoration: none;

    transition: background-color 0.25s ease, color 0.25s ease;
}

nav > a:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #e0f4ff;
}

nav > a:not(:last-child) {
    border-right: 1px solid rgba(255, 255, 255, 0.219);
}

a.selected {
    font-weight: bold;
}

.arancione {
    color:rgb(189, 128, 15);
}