/**
 * DERMAL Phase C FAQ presentation layer.
 *
 * Task 33 improves only the route-scoped reading hierarchy and accessible
 * states. The source fallback, FAQ option/filter, anchors and faq.js remain
 * authoritative; no customer-facing content is introduced here.
 */

.faq-page {
	--dermal-faq-section-space: clamp(4.5rem, 7vw, 7rem);
	--dermal-faq-card-padding: clamp(1.25rem, 2.6vw, 2rem);
	--dermal-faq-border: 1px solid var(--dermal-color-border);
	--dermal-faq-dark-border: 1px solid rgb(255 255 255 / 16%);
	--dermal-faq-dark-surface: rgb(255 255 255 / 8%);
}

.faq-page :where(h1, h2, h3) {
	line-height: var(--dermal-line-height-heading);
	text-wrap: balance;
}

.faq-page :where(p, li) {
	text-wrap: pretty;
}

.faq-page :where(.page-header, .page-faqs, .our-scrolling-ticker) {
	isolation: isolate;
}

/* The frozen heading and breadcrumb DOM receive the shared Phase C hierarchy. */
.faq-page .page-header {
	display: grid;
	min-height: clamp(18rem, 32vw, 25rem);
	padding: clamp(5rem, 10vw, 8rem) 0;
	overflow: hidden;
	place-items: center;
	background:
		radial-gradient(circle at 18% 18%, rgb(255 255 255 / 9%), transparent 30%),
		linear-gradient(135deg, var(--dermal-color-brand-900), var(--dermal-color-brand-700));
}

.faq-page .page-header-box {
	position: relative;
	z-index: 1;
}

.faq-page .page-header-box h1 {
	max-width: 48rem;
	font-size: clamp(3rem, 6vw, 4.75rem);
	line-height: 1.05;
}

.faq-page .breadcrumb {
	gap: var(--dermal-space-1);
	width: fit-content;
	max-width: 100%;
	padding: 0.625rem 1rem;
	margin-right: auto;
	margin-left: auto;
	background: var(--dermal-faq-dark-surface);
	border: var(--dermal-faq-dark-border);
	border-radius: var(--dermal-radius-pill);
	-webkit-backdrop-filter: blur(8px);
	backdrop-filter: blur(8px);
}

.faq-page .page-faqs {
	padding-top: var(--dermal-faq-section-space);
	padding-bottom: var(--dermal-faq-section-space);
}

.faq-page .page-single-sidebar {
	top: 7.5rem;
	margin-right: 0;
}

/* Sidebar links remain direct category anchors, with a larger touch target. */
.faq-page .page-catagery-list {
	padding: var(--dermal-faq-card-padding);
	margin-bottom: var(--dermal-space-6);
	background: var(--dermal-color-surface-muted);
	border: var(--dermal-faq-border);
	border-radius: var(--dermal-radius-xl);
	box-shadow: var(--dermal-shadow-sm);
}

.faq-page .page-catagery-list ul {
	display: grid;
	gap: var(--dermal-space-2);
}

.faq-page .page-catagery-list ul li {
	margin: 0;
}

.faq-page .page-catagery-list ul li a {
	display: flex;
	min-height: 3.25rem;
	align-items: center;
	padding: 0.75rem 3rem 0.75rem 1rem;
	color: var(--dermal-color-brand-900);
	background: var(--dermal-color-surface);
	border: var(--dermal-faq-border);
	border-radius: var(--dermal-radius-md);
	font-weight: 600;
	text-transform: none;
	transition:
		background-color var(--dermal-motion-fast) var(--dermal-ease-standard),
		border-color var(--dermal-motion-fast) var(--dermal-ease-standard),
		color var(--dermal-motion-fast) var(--dermal-ease-standard),
		transform var(--dermal-motion-fast) var(--dermal-ease-standard);
}

.faq-page .page-catagery-list ul li a:is(:hover, :focus-visible) {
	color: var(--dermal-color-on-brand);
	background: var(--dermal-color-brand-700);
	border-color: var(--dermal-color-brand-700);
	transform: translateX(0.2rem);
}

.faq-page .page-catagery-list ul li a::after {
	display: none;
}

.faq-page .page-catagery-list ul li a::before {
	right: 1.15rem;
	border-color: currentColor;
}

.faq-page .sidebar-cta-box {
	padding: clamp(2rem, 4vw, 3rem) var(--dermal-faq-card-padding) var(--dermal-faq-card-padding);
	background: linear-gradient(145deg, var(--dermal-color-brand-900), var(--dermal-color-brand-700));
	border: var(--dermal-faq-dark-border);
	border-radius: var(--dermal-radius-xl);
	box-shadow: var(--dermal-shadow-md);
}

.faq-page .sidebar-cta-box::before {
	background: radial-gradient(circle at 80% 0%, rgb(255 255 255 / 16%), transparent 42%);
}

.faq-page .sidebar-cta-content {
	margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.faq-page .sidebar-cta-content p {
	margin-bottom: var(--dermal-space-3);
}

.faq-page .sidebar-cta-content h3 {
	margin: 0;
	font-family: var(--dermal-font-display);
	font-size: clamp(1.25rem, 2vw, 1.6rem);
	font-weight: 400;
	letter-spacing: 0;
	line-height: 1.35;
	text-transform: none;
}

.faq-page .sidebar-cta-contact {
	max-width: 28rem;
	padding: var(--dermal-space-3);
	margin-inline: auto;
	background: var(--dermal-faq-dark-surface);
	border: var(--dermal-faq-dark-border);
	border-radius: var(--dermal-radius-lg);
}

.faq-page .sidebar-cta-contact::before {
	display: none;
}

.faq-page .sidebar-cta-contact a {
	border-radius: var(--dermal-radius-sm);
}

/* The existing one-open-per-category interaction is visually contained. */
.faq-page .page-faqs-catagery {
	display: grid;
	gap: clamp(2.5rem, 5vw, 4.5rem);
}

.faq-page .page-faqs .page-faq-accordion {
	padding: var(--dermal-faq-card-padding);
	margin: 0;
	scroll-margin-top: 8.5rem;
	background: var(--dermal-color-surface);
	border: var(--dermal-faq-border);
	border-radius: var(--dermal-radius-xl);
	box-shadow: var(--dermal-shadow-sm);
}

.faq-page .page-faq-accordion:target {
	border-color: var(--dermal-color-border-strong);
	box-shadow: var(--dermal-shadow-md);
}

.faq-page .page-faq-accordion .section-title {
	padding-bottom: var(--dermal-space-5);
	margin-bottom: var(--dermal-space-2);
	border-bottom: var(--dermal-faq-border);
}

.faq-page .page-faq-accordion .section-title h2 {
	margin: 0;
	font-size: clamp(1.75rem, 3vw, 2.5rem);
	color: var(--dermal-color-brand-900);
}

.faq-page .faq-accordion.page-faq-accordion .accordion-item {
	padding: 0;
	margin: 0;
	border-bottom: var(--dermal-faq-border);
}

.faq-page .faq-accordion.page-faq-accordion .accordion-item:last-child {
	border-bottom: 0;
}

.faq-page .faq-accordion.page-faq-accordion .accordion-button {
	width: 100%;
	min-height: 4rem;
	padding: 1rem 2.25rem 1rem 0;
	color: var(--dermal-color-brand-900);
	font-size: clamp(1.05rem, 1.6vw, 1.25rem);
	font-weight: 600;
	text-align: left;
	text-transform: none;
}

.faq-page .faq-accordion.page-faq-accordion .accordion-button:not(.collapsed) {
	padding-bottom: 0.75rem;
	color: var(--dermal-color-brand-700);
}

.faq-page .faq-accordion.page-faq-accordion .accordion-item .accordion-button::after {
	right: 0.35rem;
	top: 1.35rem;
	width: 0.65rem;
	height: 0.65rem;
	border-width: 2px;
}

.faq-page .faq-accordion.page-faq-accordion .accordion-item .accordion-body {
	padding: 0 2.25rem 1.25rem 0;
}

.faq-page .faq-accordion.page-faq-accordion .accordion-item .accordion-body p {
	margin: 0;
	color: var(--dermal-color-text);
	font-size: 1rem;
	line-height: 1.7;
}

.faq-page .faq-accordion.page-faq-accordion .accordion-button:focus-visible,
.faq-page .sidebar-cta-contact a:focus-visible,
.faq-page .page-catagery-list ul li a:focus-visible {
	outline: 3px solid var(--dermal-color-focus);
	outline-offset: 3px;
}

.faq-page .our-scrolling-ticker {
	padding-top: var(--dermal-space-8);
	padding-bottom: var(--dermal-space-8);
	background: var(--dermal-color-brand-900);
}

@media (max-width: 991px) {
	.faq-page .page-single-sidebar {
		position: static;
		margin-bottom: var(--dermal-space-8);
	}

	.faq-page .page-catagery-list ul {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 767px) {
	.faq-page .page-header {
		min-height: 16rem;
	}

	.faq-page .page-faqs {
		padding-top: clamp(3.5rem, 12vw, 4.5rem);
		padding-bottom: clamp(3.5rem, 12vw, 4.5rem);
	}

	.faq-page .page-catagery-list ul {
		grid-template-columns: minmax(0, 1fr);
	}

	.faq-page .page-faqs .page-faq-accordion {
		border-radius: var(--dermal-radius-lg);
	}

	.faq-page .faq-accordion.page-faq-accordion .accordion-button {
		min-height: 3.75rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.faq-page .page-catagery-list ul li a {
		transition: none;
	}

	.faq-page .page-catagery-list ul li a:is(:hover, :focus-visible) {
		transform: none;
	}
}