/* XsisLab FAQ — dark shell companion to idealtype-landing.css */

.xsis-faq {
	max-width: var(--it-max);
	margin: 0 auto;
	padding: 28px 24px 96px;
}

.xsis-faq-hero {
	display: grid;
	grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
	gap: 28px;
	align-items: stretch;
	padding: 36px 40px;
	border-radius: 20px;
	border: 1px solid var(--it-border);
	background:
		linear-gradient(145deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 48%, rgba(0, 0, 0, 0.35) 100%),
		var(--it-panel);
	overflow: hidden;
}

.xsis-faq-hero__copy {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	justify-content: center;
	min-width: 0;
}

.xsis-faq-hero__mark {
	display: block;
	margin-bottom: 18px;
	opacity: 0.92;
}

.xsis-faq-hero__title {
	margin: 0 0 12px;
	font-size: clamp(2.4rem, 5vw, 3.4rem);
	font-weight: 700;
	letter-spacing: -0.04em;
	line-height: 1;
}

.xsis-faq-hero__lead {
	margin: 0 0 22px;
	max-width: 34rem;
	font-size: 1rem;
	line-height: 1.65;
	color: var(--it-muted);
}

.xsis-faq-hero__cta {
	text-decoration: none;
}

.xsis-faq-hero__visual {
	display: flex;
	align-items: flex-end;
	justify-content: flex-end;
	min-height: 180px;
	perspective: 900px;
}

.xsis-faq-hero__panel {
	width: min(100%, 280px);
	padding: 16px 18px 20px;
	border-radius: 14px;
	border: 1px solid rgba(255, 255, 255, 0.14);
	background: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
	box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
	transform: rotateY(-12deg) rotateX(4deg) translateY(8px);
	transform-origin: right bottom;
}

.xsis-faq-hero__panel-bar {
	display: flex;
	gap: 6px;
	margin-bottom: 14px;
}

.xsis-faq-hero__panel-bar span {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.18);
}

.xsis-faq-hero__panel-label {
	margin: 0 0 12px;
	font-size: 0.72rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--it-muted);
}

.xsis-faq-hero__panel-list {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 8px;
}

.xsis-faq-hero__panel-list li {
	padding: 8px 10px;
	border-radius: 8px;
	border: 1px solid rgba(255, 255, 255, 0.08);
	background: rgba(255, 255, 255, 0.03);
	font-size: 0.84rem;
	color: var(--it-text);
}

.xsis-faq-layout {
	display: grid;
	grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
	gap: 32px;
	margin-top: 36px;
	align-items: start;
}

.xsis-faq-side {
	position: sticky;
	top: 88px;
	display: grid;
	gap: 22px;
}

.xsis-faq-search {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 0 14px;
	height: 44px;
	border-radius: 999px;
	border: 1px solid var(--it-border);
	background: rgba(255, 255, 255, 0.03);
}

.xsis-faq-search svg {
	width: 18px;
	height: 18px;
	flex-shrink: 0;
	color: var(--it-muted);
}

.xsis-faq-search input {
	flex: 1;
	min-width: 0;
	border: 0;
	outline: none;
	background: transparent;
	color: var(--it-text);
	font: inherit;
	font-size: 0.92rem;
}

.xsis-faq-search input::placeholder {
	color: var(--it-muted);
}

.xsis-faq-topics {
	display: grid;
	gap: 4px;
}

.xsis-faq-topic {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	width: 100%;
	padding: 10px 12px;
	border: 0;
	border-radius: 10px;
	background: transparent;
	color: var(--it-muted);
	font: inherit;
	font-size: 0.9rem;
	text-align: left;
	cursor: pointer;
	transition: background 0.15s ease, color 0.15s ease;
}

.xsis-faq-topic:hover {
	color: var(--it-text);
	background: rgba(255, 255, 255, 0.04);
}

.xsis-faq-topic.is-active {
	color: var(--it-text);
	background: rgba(255, 255, 255, 0.08);
	font-weight: 600;
}

.xsis-faq-topic__count {
	font-size: 0.78rem;
	font-weight: 500;
	color: var(--it-muted);
	font-variant-numeric: tabular-nums;
}

.xsis-faq-toc__label {
	margin: 0 0 10px;
	font-size: 0.72rem;
	font-weight: 600;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--it-muted);
}

.xsis-faq-toc__list {
	max-height: 220px;
	overflow: auto;
	display: grid;
	gap: 2px;
	padding-right: 4px;
}

.xsis-faq-toc__link {
	display: block;
	padding: 7px 8px;
	border-radius: 8px;
	color: var(--it-muted);
	font-size: 0.82rem;
	line-height: 1.35;
	text-decoration: none;
}

.xsis-faq-toc__link:hover {
	color: var(--it-text);
	background: rgba(255, 255, 255, 0.04);
}

.xsis-faq-count {
	margin: 4px 0 16px;
	font-size: 0.88rem;
	color: var(--it-muted);
}

.xsis-faq-list {
	display: grid;
	gap: 12px;
}

.xsis-faq-item {
	border-radius: 14px;
	border: 1px solid var(--it-border);
	background: rgba(255, 255, 255, 0.03);
	overflow: hidden;
}

.xsis-faq-item__trigger {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	gap: 16px;
	align-items: start;
	width: 100%;
	padding: 18px 20px;
	border: 0;
	background: transparent;
	color: inherit;
	font: inherit;
	text-align: left;
	cursor: pointer;
}

.xsis-faq-item__topic {
	display: block;
	margin-bottom: 6px;
	font-size: 0.68rem;
	font-weight: 600;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--it-muted);
}

.xsis-faq-item__question {
	display: block;
	font-size: 1.02rem;
	font-weight: 600;
	letter-spacing: -0.02em;
	line-height: 1.35;
	color: var(--it-text);
}

.xsis-faq-item__chevron {
	width: 20px;
	height: 20px;
	margin-top: 18px;
	color: var(--it-muted);
	transition: transform 0.2s ease;
	flex-shrink: 0;
}

.xsis-faq-item.is-open .xsis-faq-item__chevron {
	transform: rotate(180deg);
}

.xsis-faq-item__body {
	display: none;
	padding: 0 20px 20px;
}

.xsis-faq-item.is-open .xsis-faq-item__body {
	display: block;
}

.xsis-faq-item__answer {
	margin: 0;
	padding-top: 2px;
	border-top: 1px solid var(--it-border);
	padding-top: 14px;
	font-size: 0.95rem;
	line-height: 1.65;
	color: var(--it-muted);
}

.xsis-faq-item__answer a {
	color: var(--it-text);
	text-decoration: underline;
	text-underline-offset: 2px;
}

.xsis-faq-empty {
	margin: 24px 0 0;
	padding: 28px 20px;
	border-radius: 14px;
	border: 1px dashed var(--it-border);
	text-align: center;
	color: var(--it-muted);
	font-size: 0.95rem;
}

@media (max-width: 900px) {
	.xsis-faq-hero {
		grid-template-columns: 1fr;
		padding: 28px 24px;
	}

	.xsis-faq-hero__visual {
		justify-content: flex-start;
		min-height: 0;
	}

	.xsis-faq-hero__panel {
		transform: none;
		width: 100%;
	}

	.xsis-faq-layout {
		grid-template-columns: 1fr;
		gap: 24px;
	}

	.xsis-faq-side {
		position: static;
	}

	.xsis-faq-topics {
		display: flex;
		flex-wrap: nowrap;
		gap: 8px;
		overflow-x: auto;
		padding-bottom: 4px;
		-webkit-overflow-scrolling: touch;
	}

	.xsis-faq-topic {
		flex: 0 0 auto;
		white-space: nowrap;
		border: 1px solid var(--it-border);
		border-radius: 999px;
		padding: 8px 14px;
	}

	.xsis-faq-toc {
		display: none;
	}
}

@media (max-width: 560px) {
	.xsis-faq {
		padding: 16px 16px 72px;
	}

	.xsis-faq-item__trigger {
		padding: 16px;
	}

	.xsis-faq-item__body {
		padding: 0 16px 16px;
	}
}