/* Allarga la barra di ricerca dell'header */
#search_widget, 
.search-widget, 
#search_widget form, 
.search-widget input[type="text"],
.js-search-form {
    width: 100% !important;
    min-width: 400px !important;
}

/* Amplia il contenitore nella barra di navigazione */
#header .header-nav .search-widget,
#header .displayNav1 .search-widget,
#header .displayNav2 .search-widget {
    flex: 1 1 auto !important;
    max-width: 500px !important;
}