/**
 * Biblioteca Sito — stili front-end (accordion, form, filtri).
 * Riusa i token del tema; definisce solo ciò che manca. WCAG 2.2 AA.
 */

/* --- Accordion accessibile ------------------------------------------- */
.bib-accordion {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.bib-accordion__item {
	border: 1px solid var(--neutral-300, #b8bec9);
	border-radius: var(--radius-md, 8px);
	overflow: hidden;
	background: #fff;
}

.bib-accordion__heading {
	margin: 0;
	font-size: inherit;
}

.bib-accordion__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	width: 100%;
	min-height: 48px; /* target ampio (WCAG 2.5.8) */
	padding: 12px 16px;
	background: var(--neutral-50, #f5f7fa);
	border: 0;
	font: inherit;
	font-weight: var(--weight-medium, 600);
	color: var(--text-strong, #1b1b1b);
	text-align: left;
	cursor: pointer;
}

.bib-accordion__head:hover {
	background: var(--blue-50, #eef4ff);
}

.bib-accordion__head:focus-visible {
	outline: 3px solid var(--color-primary, #06c);
	outline-offset: -3px;
}

.bib-accordion__icon {
	flex: none;
	color: var(--color-primary, #06c);
	transition: transform var(--duration-fast, 0.15s) ease;
}

.bib-accordion__head[aria-expanded="true"] .bib-accordion__icon {
	transform: rotate(180deg);
}

.bib-accordion__panel-inner {
	padding: 4px 16px 16px;
}

.bib-accordion__panel[hidden] {
	display: none;
}

@media (prefers-reduced-motion: reduce) {
	.bib-accordion__icon {
		transition: none;
	}
}

/* --- Filtro bibliografie ---------------------------------------------- */
.bib-filter { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; margin-bottom: 20px; }
.bib-filter .field { display: flex; flex-direction: column; gap: 4px; }
.bib-filter__text, .bib-filter__age {
	font: inherit; min-height: 44px; padding: 8px 12px;
	border: 1px solid var(--neutral-500, #6b7280); border-radius: var(--radius-md, 8px); background: #fff;
}
.bib-filter__text:focus-visible, .bib-filter__age:focus-visible { outline: 3px solid var(--color-primary, #06c); outline-offset: 2px; }
.bib-proposte { gap: 20px; }

/* --- Moduli accessibili ----------------------------------------------- */
.bib-form { display: flex; flex-direction: column; gap: 16px; max-width: 640px; }
.bib-form__field { display: flex; flex-direction: column; gap: 4px; }
.bib-form__control {
	font: inherit; min-height: 44px; padding: 8px 12px;
	border: 1px solid var(--neutral-500, #6b7280); border-radius: var(--radius-md, 8px); background: #fff;
	color: var(--text-strong, #1b1b1b);
}
textarea.bib-form__control { min-height: 96px; resize: vertical; }
.bib-form__control:focus-visible { outline: 3px solid var(--color-primary, #06c); outline-offset: 2px; }
.bib-form__req { color: var(--danger, #b8261c); margin-left: 2px; }
.bib-form__consent label { display: flex; gap: 10px; align-items: flex-start; }
.bib-form__consent input { margin-top: 4px; width: 20px; height: 20px; }
/* Honeypot: fuori dallo schermo, non display:none (i bot lo compilano). */
.bib-form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.bib-form__actions { margin-top: 8px; }

/* --- Slider avvisi globali (accessibile) ------------------------------- */
.bib-avvisi { margin: 0; }
.bib-avvisi__viewport { position: relative; }
.bib-avvisi__track { list-style: none; margin: 0; padding: 0; }
.bib-avvisi__slide { margin: 0; }
.bib-avvisi__slide[hidden] { display: none; }
.bib-avvisi .alert__action { margin: 8px 0 0; }
.bib-avvisi .alert__action a { font-weight: 600; }

.bib-avvisi__controls {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 10px;
}
.bib-avvisi__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	padding: 0;
	line-height: 1;
	color: var(--color-primary, #0C6DB1);
	background: #fff;
	border: 1px solid var(--neutral-300, #C5C7CB);
	border-radius: 50%;
	cursor: pointer;
	transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.bib-avvisi__btn .icon { width: 22px; height: 22px; }
.bib-avvisi__btn:hover {
	background: var(--blue-50, #F2F8FC);
	border-color: var(--color-primary, #0C6DB1);
}
.bib-avvisi__btn:active { transform: scale( 0.94 ); }
.bib-avvisi__btn:focus-visible { outline: 3px solid var(--color-primary, #0C6DB1); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
	.bib-avvisi__btn { transition: none; }
	.bib-avvisi__btn:active { transform: none; }
}

/* Icona Pausa/Play disegnata in CSS (usa currentColor = colore brand). */
.bib-avvisi__pause-icon { position: relative; display: inline-block; width: 12px; height: 14px; }
.bib-avvisi__pause-icon::before,
.bib-avvisi__pause-icon::after {
	content: "";
	position: absolute;
	top: 0;
	bottom: 0;
	width: 4px;
	background: currentColor;
	border-radius: 1px;
}
.bib-avvisi__pause-icon::before { left: 0; }
.bib-avvisi__pause-icon::after { right: 0; }
/* In pausa: il bottone mostra il triangolo «play». */
.bib-avvisi__pause[aria-pressed="true"] .bib-avvisi__pause-icon {
	width: 0;
	height: 0;
	border-left: 13px solid currentColor;
	border-top: 8px solid transparent;
	border-bottom: 8px solid transparent;
}
.bib-avvisi__pause[aria-pressed="true"] .bib-avvisi__pause-icon::before,
.bib-avvisi__pause[aria-pressed="true"] .bib-avvisi__pause-icon::after { content: none; }

.bib-avvisi__dots { display: flex; gap: 4px; align-items: center; }
.bib-avvisi__dot {
	/* Target ≥ 24px (WCAG 2.5.8) con pallino visibile più piccolo. */
	width: 24px;
	height: 24px;
	padding: 0;
	border: 0;
	background: transparent;
	cursor: pointer;
	position: relative;
}
.bib-avvisi__dot::before {
	content: "";
	position: absolute;
	inset: 7px;
	border-radius: 50%;
	background: var(--neutral-300, #C5C7CB);
}
.bib-avvisi__dot.is-active::before { background: var(--color-primary, #0C6DB1); }
.bib-avvisi__dot:focus-visible { outline: 3px solid var(--color-primary, #0C6DB1); outline-offset: 0; border-radius: 50%; }