/**
 * Single case study (realizacja): article layout + sticky bar of points.
 *
 * One reading measure (--case-measure) for header, cover, points and body,
 * like an article; the related list and footer use the same column.
 *
 * @package ProdentLab
 */

.case-study {
	--case-measure: 820px;
	--case-sticky-top: 92px;
	padding: 132px clamp(20px, 6vw, 100px) clamp(96px, 10vw, 132px);
	background: #000;
	color: #fff;
}

.case-study__inner {
	width: min(100%, 1240px);
	margin: 0 auto;
}

.case-study__crumbs {
	justify-content: flex-start;
	margin: 0 0 clamp(28px, 4vw, 48px);
	text-align: left;
}

.case-study__header,
.case-study__cover,
.case-study__points,
.case-study__body {
	width: min(100%, var(--case-measure));
	margin-right: auto;
	margin-left: auto;
}

/* Header */
.case-study__header {
	display: grid;
	gap: 18px;
}

.case-study__eyebrow {
	margin: 0;
	color: var(--color-gold);
	font-family: var(--font-display);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.case-study__title {
	/* The base h1 rule caps headings at 640px; use the full column. */
	max-width: none;
	margin: 0;
	color: #fff;
	font-family: var(--font-display);
	font-size: var(--heading-section);
	font-weight: 700;
	line-height: var(--heading-section-line);
	letter-spacing: var(--heading-section-tracking);
}

.case-study__lead {
	margin: 0;
	color: var(--lead-section-color);
	font-family: var(--font-body);
	font-size: 18px;
	line-height: 1.6;
}

.case-study__cover {
	margin-top: clamp(28px, 3.5vw, 40px);
	margin-bottom: 0;
	overflow: hidden;
	border-radius: var(--radius-lg);
	background: var(--color-panel);
}

.case-study__cover img,
.case-study__figure img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 16 / 9;
	object-fit: cover;
}

/* Sticky points bar */
.case-study__points {
	position: sticky;
	top: var(--case-sticky-top);
	z-index: 5;
	margin-top: clamp(28px, 3.5vw, 40px);
	padding: 6px;
	border: 1px solid var(--color-line);
	border-radius: var(--radius-pill);
	background: rgba(8, 8, 8, 0.86);
	-webkit-backdrop-filter: blur(14px);
	backdrop-filter: blur(14px);
}

.case-study__points-list {
	display: flex;
	gap: 4px;
	margin: 0;
	padding: 0;
	overflow-x: auto;
	list-style: none;
	scroll-behavior: smooth;
	scrollbar-width: none;
}

.case-study__points-list::-webkit-scrollbar {
	display: none;
}

.case-study__points-list li {
	flex: 1 0 auto;
}

.case-study__points-link {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: 40px;
	padding: 0 16px;
	border-radius: var(--radius-pill);
	color: var(--color-text-muted);
	font-family: var(--font-display);
	font-size: var(--text-sm);
	font-weight: 500;
	white-space: nowrap;
	text-decoration: none;
	transition: background 180ms ease, color 180ms ease;
}

.case-study__points-link:hover,
.case-study__points-link:focus-visible {
	color: #fff;
	outline: none;
}

.case-study__points-link[aria-current="true"] {
	background: var(--color-white);
	color: var(--color-ink);
}

.case-study__points-num {
	color: var(--color-gold-deep);
	font-variant-numeric: tabular-nums;
}

/* Points */
.case-study__body {
	margin-top: clamp(16px, 2vw, 24px);
}

.case-study__intro,
.case-study__point,
.case-study__block,
.case-study__extra,
.case-study__related {
	padding: clamp(40px, 5vw, 56px) 0;
	border-bottom: 1px solid var(--color-line);
	scroll-margin-top: calc(var(--case-sticky-top) + 72px);
}

.case-study__point-label {
	display: flex;
	align-items: center;
	gap: 10px;
	margin: 0 0 12px;
	color: var(--color-gold);
	font-family: var(--font-display);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.case-study__point-num {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 32px;
	height: 24px;
	padding: 0 8px;
	border: 1px solid rgba(255, 204, 123, 0.4);
	border-radius: var(--radius-pill);
	letter-spacing: 0;
}

.case-study__point-title,
.case-study__block-title {
	margin: 0 0 20px;
	color: #fff;
	font-family: var(--font-display);
	font-size: clamp(1.5rem, 2.4vw, 2rem);
	font-weight: 700;
	line-height: 1.2;
	letter-spacing: -0.02em;
}

.case-study__figure {
	margin: 0 0 24px;
	overflow: hidden;
	border-radius: var(--radius-lg);
	background: var(--color-panel);
}

.case-study__text {
	color: #d7dbda;
	font-family: var(--font-body);
	font-size: 17px;
	line-height: 1.68;
}

.case-study__text > :first-child {
	margin-top: 0;
}

.case-study__text > :last-child {
	margin-bottom: 0;
}

.case-study__text p,
.case-study__text ul,
.case-study__text ol {
	margin: 0 0 20px;
}

.case-study__text ul,
.case-study__text ol {
	padding-left: 1.25em;
}

.case-study__text li + li {
	margin-top: 8px;
}

.case-study__text li::marker {
	color: var(--color-gold);
}

.case-study__text strong {
	color: #fff;
}

.case-study__text a {
	color: var(--color-gold);
	text-decoration-thickness: 1px;
	text-underline-offset: 4px;
}

.case-study__text h3,
.case-study__text h4 {
	margin: 28px 0 10px;
	color: #fff;
	font-family: var(--font-display);
	font-size: 1.25rem;
	line-height: 1.25;
}

.case-study__text img {
	display: block;
	max-width: 100%;
	height: auto;
	margin: 24px 0;
	border-radius: var(--radius-lg);
}

.case-study__next {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	margin-top: 28px;
	color: var(--color-text-muted);
	font-family: var(--font-display);
	font-size: var(--text-sm);
	font-weight: 500;
	text-decoration: none;
	transition: color 180ms ease;
}

.case-study__next:hover,
.case-study__next:focus-visible {
	color: var(--color-gold);
	outline: none;
}

.case-study__next svg {
	transition: transform 220ms ease;
}

.case-study__next:hover svg {
	transform: translateY(3px);
}

/* Timeline */
.case-study__timeline {
	display: grid;
	gap: 0;
	margin: 0;
	padding: 0;
	list-style: none;
	counter-reset: case-step;
}

.case-study__timeline li {
	position: relative;
	padding: 0 0 22px 32px;
	border-left: 1px solid var(--color-line);
	margin-left: 6px;
}

.case-study__timeline li:last-child {
	padding-bottom: 0;
	border-left-color: transparent;
}

.case-study__timeline li::before {
	content: "";
	position: absolute;
	top: 6px;
	left: -6px;
	width: 11px;
	height: 11px;
	border-radius: 999px;
	background: var(--color-gold);
}

.case-study__timeline-head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px 12px;
}

.case-study__timeline-head strong {
	color: #fff;
	font-family: var(--font-display);
	font-size: 16px;
}

.case-study__timeline-head span {
	color: var(--color-gold);
	font-size: 13px;
}

.case-study__timeline p {
	margin: 6px 0 0;
	color: var(--color-text-muted);
	font-size: 15px;
	line-height: 1.6;
}

/* Gallery */
.case-study__gallery {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 12px;
}

.case-study__gallery figure {
	margin: 0;
	overflow: hidden;
	border-radius: var(--radius-md);
}

.case-study__gallery img {
	display: block;
	width: 100%;
	height: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
}

/* Team */
.case-study__team {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.case-study__team li {
	display: flex;
	align-items: center;
	gap: 12px;
}

.case-study__team img {
	border-radius: 999px;
	object-fit: cover;
}

.case-study__team li > span {
	display: grid;
	gap: 2px;
}

.case-study__team strong {
	color: #fff;
	font-size: 15px;
}

.case-study__team li > span > span {
	color: var(--color-text-muted);
	font-size: 13px;
}

/* Related (list, like an article's "read also") */
.case-study__related ul {
	display: grid;
	gap: 28px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.case-study__related li {
	display: grid;
	gap: 6px;
}

.case-study__related a {
	width: fit-content;
	color: var(--color-gold);
	font-family: var(--font-display);
	font-size: 18px;
	font-weight: 600;
	line-height: 1.3;
	text-decoration: none;
	transition: color 180ms ease;
}

.case-study__related a:hover,
.case-study__related a:focus-visible {
	color: var(--color-gold-soft);
	text-decoration: underline;
	text-underline-offset: 4px;
	outline: none;
}

.case-study__related time {
	color: rgba(255, 255, 255, 0.5);
	font-size: 13px;
}

.case-study__related p {
	margin: 0;
	color: var(--color-text-muted);
	font-size: 15px;
	line-height: 1.6;
}

/* Footer */
.case-study__footer {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding-top: clamp(28px, 3vw, 36px);
}

.case-study__dates {
	display: grid;
	gap: 4px;
	margin: 0;
	color: rgba(255, 255, 255, 0.55);
	font-size: 13px;
}

.case-study__dates div {
	display: flex;
	gap: 6px;
}

.case-study__dates dd {
	margin: 0;
	color: #fff;
	font-weight: 600;
}

.case-study__back {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	color: var(--color-text-muted);
	font-family: var(--font-display);
	font-size: var(--text-sm);
	font-weight: 500;
	text-decoration: none;
}

.case-study__back:hover,
.case-study__back:focus-visible {
	color: var(--color-gold);
	outline: none;
}

.case-study__back svg,
.case-study__back i {
	width: 16px;
	height: 16px;
}

@media (max-width: 720px) {
	.case-study {
		--case-sticky-top: 76px;
		padding-top: 112px;
	}

	.case-study__lead {
		font-size: 16px;
	}

	.case-study__points {
		margin-right: -4px;
		margin-left: -4px;
		width: calc(100% + 8px);
	}

	.case-study__points-list li {
		flex: 0 0 auto;
	}

	.case-study__gallery {
		grid-template-columns: 1fr;
	}
}