/* ─── Header ────────────────────────────────────────────────────────────────── */

#site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 1000;
	height: 128px;
	background: transparent;
	transition: height 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

#site-header.is-sticky {
	background: var(--color-bg);
	box-shadow: none;
}

#site-header.is-shrunk {
	height: 60px;
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
	padding: 0 40px;
}

/* ─── Logo ──────────────────────────────────────────────────────────────────── */

.site-logo {
	display: flex;
	align-items: center;
	flex-shrink: 0;
	text-decoration: none;
}

.site-logo img {
	display: block;
	transition: height 0.3s ease, opacity 0.2s ease;
}

.logo-full {
	height: 104px;
	width: auto;
	opacity: 1;
}

.logo-symbol {
	height: 44px;
	width: auto;
	opacity: 0;
	position: absolute;
	pointer-events: none;
}

#site-header.is-shrunk .logo-full {
	opacity: 0;
	pointer-events: none;
	position: absolute;
}

#site-header.is-shrunk .logo-symbol {
	opacity: 1;
	position: static;
	pointer-events: auto;
}

/* ─── Hamburger ─────────────────────────────────────────────────────────────── */

.menu-toggle,
button.menu-toggle {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 6px;
	width: 52px;
	height: 52px;
	padding: 10px;
	margin-left: auto;
	flex-grow: 0;
	flex-shrink: 0;
	background: none;
	border: none;
	cursor: pointer;
}

.hamburger-bar {
	display: block;
	width: 32px;
	height: 2px;
	background: var(--color-text);
	border-radius: 1px;
	transition: transform 0.25s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
	transform: translateY(8px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
	opacity: 0;
}
.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
	transform: translateY(-8px) rotate(-45deg);
}

/* ─── Menu off-canvas ────────────────────────────────────────────────────────── */

.mobile-nav-overlay {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.6);
	z-index: 1100;
	opacity: 0;
	transition: opacity 0.3s ease;
}

.mobile-nav-overlay.is-open {
	display: block;
	opacity: 1;
}

.mobile-nav {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	width: min(320px, 85vw);
	background: var(--color-surface);
	border-left: 1px solid var(--color-border);
	z-index: 1200;
	overflow-y: auto;
	transform: translateX(100%);
	transition: transform 0.3s ease;
	padding: 24px 0;
}

.mobile-nav.is-open {
	transform: translateX(0);
}

@media (min-width: 900px) {
	.mobile-nav {
		width: 400px;
	}
}

.mobile-nav-close {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	width: 100%;
	padding: 0 24px 16px;
	background: none;
	border: none;
	font-size: 1.75rem;
	color: var(--color-text-muted);
	cursor: pointer;
	line-height: 1;
}

.mobile-nav-close:hover,
.mobile-nav-close:focus,
.mobile-nav-close:active {
	background: none;
	color: var(--color-text);
}

.mobile-nav-list,
.mobile-nav-list .sub-menu {
	list-style: none;
	margin: 0;
	padding: 0;
}

/* Livello 1 */
.mobile-nav-list > li > a {
	display: block;
	padding: 13px 24px;
	font-family: var(--font-body);
	font-size: var(--text-base);
	font-weight: 400;
	color: var(--color-text);
	text-decoration: none;
	border-bottom: 1px solid var(--color-border);
	transition: color 0.15s ease;
}

.mobile-nav-list > li > a:hover,
.mobile-nav-list > li.current-menu-item > a,
.mobile-nav-list > li.current-menu-ancestor > a {
	color: var(--color-accent);
}

/* Livello 2 */
.mobile-nav-list .sub-menu > li > a {
	display: block;
	padding: 11px 24px 11px 40px;
	font-family: var(--font-body);
	font-size: var(--text-sm);
	font-weight: 400;
	color: var(--color-text-muted);
	text-decoration: none;
	border-bottom: 1px solid var(--color-border);
	transition: color 0.15s ease;
}

.mobile-nav-list .sub-menu > li > a:hover,
.mobile-nav-list .sub-menu > li.current-menu-item > a {
	color: var(--color-accent);
}

/* Livello 3 */
.mobile-nav-list .sub-menu .sub-menu > li > a {
	padding-left: 56px;
	font-size: var(--text-xs);
}

/* ─── Accordion: voci livello 2 con figli ────────────────────────────────────── */

.mobile-nav-list .sub-menu > li.menu-item-has-children {
	display: flex;
	flex-wrap: wrap;
	align-items: stretch;
}

.mobile-nav-list .sub-menu > li.menu-item-has-children > a {
	flex: 1;
	min-width: 0;
}

.sub-toggle {
	width: 48px;
	flex-shrink: 0;
	background: none;
	border: none;
	border-bottom: 1px solid var(--color-border);
	color: var(--color-text-muted);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: color 0.15s ease;
}

.sub-toggle:hover {
	color: var(--color-text);
}

.sub-toggle .toggle-icon {
	display: inline-block;
	font-size: 1.1rem;
	line-height: 1;
	transition: transform 0.2s ease;
}

.sub-toggle[aria-expanded="true"] .toggle-icon {
	transform: rotate(45deg);
}

.mobile-nav-list .sub-menu > li.menu-item-has-children > .sub-menu {
	flex-basis: 100%;
}

/* ─── Compensazione header fisso ─────────────────────────────────────────────── */

body {
	padding-top: 128px;
}


/* ── Briciole di pane ──────────────────────────────────────────────────────
   Stanno qui e non in scheda.css perche' le usano sia le schede sia le storie,
   che caricano fogli diversi: header.css lo caricano tutte e due, e cosi' non
   nasce un'altra coppia di file da tenere allineata a mano.                  */

.briciole {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 28px 24px 0;
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 0 8px;
	font-family: var(--font-body);
	font-size: 0.8rem;
	letter-spacing: 0.02em;
}

.briciole a {
	color: var(--color-text-muted);
	text-decoration: none;
	transition: color 0.2s ease;
}

.briciole a:hover,
.briciole a:focus-visible {
	color: var(--color-accent);
}

.briciole-sep { color: var(--color-border); }

/* Su telefono solo il genitore, con una freccia indietro: il percorso intero
   non ci sta, e questa e' l'informazione che serve davvero li'. */
@media (max-width: 600px) {
	.briciole { padding: 20px 20px 0; }
	.briciole a:not(:last-child),
	.briciole-sep { display: none; }
	.briciole a:last-child::before { content: "\2039\00a0"; }
}

/* ─── Selettore di lingua ───────────────────────────────────────────────────── */
/*
 * Sta accanto all'hamburger perche' l'hamburger e' l'unica navigazione del sito
 * a ogni larghezza: non esiste una barra di menu desktop, quindi quel posto c'e'
 * sempre e non serve una collocazione diversa per il telefono.
 *
 * Due righe e non una: ENGLISH/VERSION fa 7 e 7 lettere, VERSIONE/ITALIANA fa 8
 * e 8, quindi il blocchetto ha quasi la stessa larghezza nelle due lingue e
 * l'header non si sbilancia quando si cambia versione.
 *
 * Deve pesare meno del logo e quanto l'hamburger: e' un comando, non un
 * richiamo. Da qui il colore attenuato e il corpo piccolo.
 */

.header-actions {
	display: flex;
	align-items: center;
	gap: 18px;
	margin-left: auto;
	flex-shrink: 0;
}

/* Il margine automatico ora ce l'ha il contenitore. */
.menu-toggle,
button.menu-toggle {
	margin-left: 0;
}

.lang-switch {
	display: flex;
	flex-direction: column;
	justify-content: center;
	font-family: var(--font-heading);
	font-size: 0.6875rem;
	font-weight: 300;
	letter-spacing: 0.14em;
	line-height: 1.3;
	text-align: right;
	text-decoration: none;
	color: var(--color-text-muted);
	transition: color 0.2s ease;
	white-space: nowrap;
}

.lang-switch:hover,
.lang-switch:focus-visible {
	color: var(--color-text);
}

/* Su schermi stretti restano logo + etichetta + hamburger in poco spazio:
   si stringono spaziatura e corpo invece di mandare il blocco a capo. */
@media (max-width: 480px) {

	.header-actions {
		gap: 10px;
	}

	.lang-switch {
		font-size: 0.625rem;
		letter-spacing: 0.08em;
	}
}