/*
 * FAQ page — grouped native <details> accordions.
 *
 * Depends on legal.css for the shared .ff-legal__list and
 * .ff-legal__related rules, since FAQ answers reuse the same list styling
 * as the policy pages. Breakpoints: mobile <600 · tablet 600–959 ·
 * desktop >=960.
 */

.ff-faq {
	padding-block: var(--space-section);
}

/* ---------- Header ---------- */

.ff-faq__header {
	max-width: 46rem;
	margin-bottom: var(--space-2xl);
}

.ff-faq__title {
	font-size: var(--text-2xl);
	margin-bottom: var(--space-sm);
}

.ff-faq__intro {
	font-size: var(--text-md);
	line-height: 1.6;
	margin-bottom: 0;
}

.ff-faq__intro a {
	text-decoration: underline;
	text-underline-offset: 0.15em;
}

/* ---------- Layout ---------- */

.ff-faq__layout {
	display: grid;
	gap: var(--space-xl);
}

@media (min-width: 960px) {
	.ff-faq__layout {
		grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
		gap: var(--space-3xl);
		align-items: start;
	}
}

/* ---------- Topic navigation ---------- */

.ff-faq__toc {
	padding: var(--space-md);
	border-radius: var(--radius-md);
	background-color: var(--color-grey-light);
}

@media (min-width: 960px) {
	.ff-faq__toc {
		position: sticky;
		top: var(--space-lg);
	}
}

.ff-faq__toc-heading {
	margin-bottom: var(--space-sm);
	font-family: var(--font-body);
	font-size: var(--text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.ff-faq__toc-list {
	font-size: var(--text-sm);
	line-height: 1.4;
}

.ff-faq__toc-list li {
	margin-bottom: var(--space-2xs);
}

.ff-faq__toc-list li:last-child {
	margin-bottom: 0;
}

.ff-faq__toc-list a {
	display: block;
	padding: var(--space-3xs) 0;
	border-bottom: 1px solid transparent;
}

.ff-faq__toc-list a:hover,
.ff-faq__toc-list a:focus-visible {
	border-bottom-color: currentColor;
}

/* ---------- Groups ---------- */

.ff-faq__body {
	max-width: 46rem;
}

.ff-faq__group {
	margin-bottom: var(--space-2xl);
	scroll-margin-top: var(--space-xl);
}

.ff-faq__group:focus {
	outline: none;
}

.ff-faq__group:focus-visible {
	outline: 2px solid var(--color-black);
	outline-offset: var(--space-sm);
	border-radius: var(--radius-sm);
}

.ff-faq__group-title {
	margin-bottom: var(--space-md);
	padding-top: var(--space-sm);
	border-top: 2px solid var(--color-black);
	font-size: var(--text-xl);
}

/* ---------- Accordion items ---------- */

.ff-faq__items {
	border-top: 1px solid var(--color-grey-light);
}

.ff-faq__item {
	border-bottom: 1px solid var(--color-grey-light);
}

/*
 * <summary> is the native disclosure control: keyboard operable, exposed
 * to assistive tech with its expanded state, and functional with JS off.
 * Only its appearance is customised.
 */
.ff-faq__question {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: var(--space-md);
	padding: var(--space-md) 0;
	cursor: pointer;
	font-family: var(--font-body);
	font-size: var(--text-md);
	font-weight: 600;
	line-height: 1.4;
	list-style: none;
}

/* Remove the default disclosure triangle in both engines. */
.ff-faq__question::-webkit-details-marker {
	display: none;
}

.ff-faq__question::marker {
	content: '';
}

.ff-faq__question:hover .ff-faq__question-text {
	text-decoration: underline;
	text-underline-offset: 0.15em;
}

.ff-faq__question:focus-visible {
	outline: 2px solid var(--color-black);
	outline-offset: -2px;
	border-radius: var(--radius-sm);
}

/* Custom +/− indicator, drawn from two pseudo-element bars. */
.ff-faq__icon {
	position: relative;
	flex: 0 0 auto;
	width: 1.5rem;
	height: 1.5rem;
	margin-top: 0.125rem;
	border-radius: var(--radius-pill);
	background-color: var(--color-grey-light);
	transition: background-color 0.2s ease;
}

.ff-faq__icon::before,
.ff-faq__icon::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0.6875rem;
	height: 2px;
	background-color: var(--color-black);
	transform: translate(-50%, -50%);
	transition: transform 0.2s ease, opacity 0.2s ease;
}

.ff-faq__icon::after {
	transform: translate(-50%, -50%) rotate(90deg);
}

.ff-faq__item[open] .ff-faq__icon {
	background-color: var(--color-gold);
}

.ff-faq__item[open] .ff-faq__icon::after {
	opacity: 0;
	transform: translate(-50%, -50%) rotate(0deg);
}

/* ---------- Answers ---------- */

.ff-faq__answer {
	padding: 0 0 var(--space-md);
	font-size: var(--text-base);
	line-height: 1.7;
}

@media (min-width: 600px) {
	.ff-faq__answer {
		padding-right: var(--space-2xl);
	}
}

.ff-faq__answer p:last-child {
	margin-bottom: 0;
}

.ff-faq__answer a {
	text-decoration: underline;
	text-underline-offset: 0.15em;
	text-decoration-thickness: 1px;
}

.ff-faq__answer a:hover,
.ff-faq__answer a:focus-visible {
	text-decoration-thickness: 2px;
}

.ff-faq__back-to-top {
	margin-top: var(--space-xl);
	font-size: var(--text-sm);
	font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
	.ff-faq__icon,
	.ff-faq__icon::before,
	.ff-faq__icon::after {
		transition: none;
	}
}