/**
 * Case Study Single — Full Detail View
 *
 * Design system:
 *   - Background: transparent (page provides dark background)
 *   - Glassmorphism: rgba(16, 16, 16, 0.28) + blur(16px) (over images)
 *   - Panels on dark bg: rgba(255, 255, 255, 0.04) + border rgba(255,255,255,0.08)
 *   - Fonts: Manrope 700 (headings), Helvetica (body), Helvetica 600 uppercase 13px (accents)
 *   - Container: 1220px
 *   - border-radius: 0
 */

/* ------------------------------------------------
   Shared
   ------------------------------------------------ */

.stg-case-single__container {
	max-width: 1220px;
	margin: 0 auto;
	padding: 0 24px;
}

.stg-case-single__label {
	display: inline-block;
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.35);
	margin-bottom: 32px;
}

/* ------------------------------------------------
   Hero
   ------------------------------------------------ */

.stg-case-single__hero {
	position: relative;
	width: 100vw;
	margin-left: calc(-50vw + 50%);
	height: clamp(450px, 65vh, 700px);
	overflow: hidden;
}

/* Hero image */
.stg-case-single__hero-bg {
	position: absolute;
	inset: 0;
	overflow: hidden;
}

.stg-case-single__hero-img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center center;
}

.stg-case-single__hero-bg--empty {
	background: linear-gradient(
		135deg,
		#1a1a2e 0%,
		#16213e 50%,
		#0f3460 100%
	);
}

/* Back link — glass badge top-left */
.stg-case-single__back {
	position: absolute;
	top: 24px;
	left: max(24px, calc((100vw - 1220px) / 2));
	z-index: 5;
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 10px 18px;
	background: rgba(16, 16, 16, 0.3);
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
	backdrop-filter: blur(14px) saturate(1.2);
	-webkit-backdrop-filter: blur(14px) saturate(1.2);
	border: 1px solid rgba(255, 255, 255, 0.08);
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.7);
	text-decoration: none;
	transition: background-color 0.3s ease;
}

.stg-case-single__back:hover {
	background: rgba(16, 16, 16, 0.45);
}

/* Hero glass panel — floating at bottom, container-width */
.stg-case-single__hero-glass {
	position: absolute;
	bottom: 30px;
	left: max(24px, calc((100vw - 1220px) / 2));
	right: max(24px, calc((100vw - 1220px) / 2));
	z-index: 3;
	padding: 36px 40px;
	background: rgba(16, 16, 16, 0.28);
	box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
	backdrop-filter: blur(16px) saturate(1.2);
	-webkit-backdrop-filter: blur(16px) saturate(1.2);
	border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Category badges inside glass */
.stg-case-single__hero-badges {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 16px;
}

.stg-case-single__badge {
	display: inline-flex;
	align-items: center;
	padding: 6px 14px;
	background: rgba(255, 255, 255, 0.06);
	border: 1px solid rgba(255, 255, 255, 0.1);
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.6);
}

/* Hero title */
.stg-case-single__hero-title {
	font-family: 'Manrope', sans-serif;
	font-weight: 700;
	font-size: clamp(32px, 4vw, 56px);
	line-height: 1.08;
	letter-spacing: -0.04em;
	color: #FFFFFF;
	margin: 0 0 16px;
}

/* Hero meta — client + services */
.stg-case-single__hero-meta {
	display: flex;
	align-items: center;
	gap: 8px;
	flex-wrap: wrap;
}

.stg-case-single__hero-client {
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 500;
	font-size: 14px;
	color: rgba(255, 255, 255, 0.5);
}

.stg-case-single__hero-client::after {
	content: '\00B7';
	margin-left: 8px;
	color: rgba(255, 255, 255, 0.2);
}

.stg-case-single__hero-services {
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.35);
}

/* ------------------------------------------------
   Body — content + details sidebar
   ------------------------------------------------ */

.stg-case-single__body {
	padding: 80px 0;
}

.stg-case-single__body .stg-case-single__container {
	display: grid;
	grid-template-columns: 1fr 340px;
	gap: 60px;
	align-items: start;
}

/* Content column */
.stg-case-single__content {
	min-width: 0;
}

.stg-case-single__text {
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 400;
	font-size: 16px;
	line-height: 1.75;
	color: rgba(255, 255, 255, 0.7);
}

.stg-case-single__text p {
	margin: 0 0 24px;
}

.stg-case-single__text p:last-child {
	margin-bottom: 0;
}

.stg-case-single__text h2,
.stg-case-single__text h3,
.stg-case-single__text h4 {
	font-family: 'Manrope', sans-serif;
	font-weight: 700;
	color: #FFFFFF;
	margin: 48px 0 16px;
	letter-spacing: -0.02em;
}

.stg-case-single__text h2 { font-size: 28px; }
.stg-case-single__text h3 { font-size: 22px; }
.stg-case-single__text h4 { font-size: 18px; }

.stg-case-single__text a {
	color: #FFFFFF;
	text-decoration: underline;
	text-underline-offset: 3px;
	text-decoration-color: rgba(255, 255, 255, 0.3);
	transition: text-decoration-color 0.3s ease;
}

.stg-case-single__text a:hover {
	text-decoration-color: #FFFFFF;
}

.stg-case-single__text ul,
.stg-case-single__text ol {
	padding-left: 20px;
	margin: 0 0 24px;
}

.stg-case-single__text li {
	margin-bottom: 8px;
}

.stg-case-single__text blockquote {
	margin: 32px 0;
	padding: 24px 32px;
	border-left: 2px solid rgba(255, 255, 255, 0.12);
	color: rgba(255, 255, 255, 0.5);
	font-style: italic;
}

.stg-case-single__text img {
	max-width: 100%;
	height: auto;
}

/* Sidebar — details panel */
.stg-case-single__sidebar {
	position: sticky;
	top: 100px;
}

.stg-case-single__details {
	padding: 32px;
	background: rgba(255, 255, 255, 0.03);
	border: 1px solid rgba(255, 255, 255, 0.08);
}

.stg-case-single__detail {
	padding: 20px 0;
	border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.stg-case-single__detail:first-child {
	padding-top: 0;
}

.stg-case-single__detail:last-child {
	padding-bottom: 0;
	border-bottom: none;
}

.stg-case-single__detail-label {
	display: block;
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.35);
	margin-bottom: 6px;
}

.stg-case-single__detail-value {
	display: block;
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 500;
	font-size: 15px;
	line-height: 1.5;
	color: rgba(255, 255, 255, 0.8);
}

/* ------------------------------------------------
   Gallery
   ------------------------------------------------ */

.stg-case-single__gallery {
	padding: 0 0 80px;
}

.stg-case-single__gallery-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
}

.stg-case-single__gallery-item {
	position: relative;
	overflow: hidden;
	aspect-ratio: 3 / 2;
	background: #111;
	margin: 0;
}

/* First image spans 2 columns for visual hierarchy */
.stg-case-single__gallery-item:first-child {
	grid-column: span 2;
	grid-row: span 2;
	aspect-ratio: auto;
}

.stg-case-single__gallery-img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center center;
	transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stg-case-single__gallery-item:hover .stg-case-single__gallery-img {
	transform: scale(1.04);
}

/* ------------------------------------------------
   Navigation — prev / next
   ------------------------------------------------ */

.stg-case-single__nav {
	padding: 0 0 80px;
	border-top: 1px solid rgba(255, 255, 255, 0.06);
	padding-top: 60px;
}

.stg-case-single__nav-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
}

.stg-case-single__nav-item {
	display: flex;
	flex-direction: column;
	gap: 10px;
	padding: 28px 32px;
	background: rgba(255, 255, 255, 0.03);
	border: 1px solid rgba(255, 255, 255, 0.08);
	text-decoration: none;
	transition: background-color 0.3s ease, transform 0.3s ease;
}

.stg-case-single__nav-item:hover {
	background: rgba(255, 255, 255, 0.06);
	transform: translateY(-2px);
}

.stg-case-single__nav-item--next {
	text-align: right;
}

.stg-case-single__nav-direction {
	display: flex;
	align-items: center;
	gap: 6px;
	font-family: 'Helvetica', 'Arial', sans-serif;
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.35);
}

.stg-case-single__nav-item--next .stg-case-single__nav-direction {
	justify-content: flex-end;
}

.stg-case-single__nav-title {
	font-family: 'Manrope', sans-serif;
	font-weight: 700;
	font-size: clamp(18px, 2vw, 24px);
	line-height: 1.2;
	letter-spacing: -0.02em;
	color: #FFFFFF;
}

/* ------------------------------------------------
   Responsive — Tablet
   ------------------------------------------------ */

@media (max-width: 1024px) {
	.stg-case-single__body .stg-case-single__container {
		grid-template-columns: 1fr 280px;
		gap: 40px;
	}

	.stg-case-single__hero-glass {
		left: 24px;
		right: 24px;
		padding: 28px 32px;
	}

	.stg-case-single__back {
		left: 24px;
	}

	.stg-case-single__gallery-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.stg-case-single__gallery-item:first-child {
		grid-column: span 2;
		grid-row: span 1;
		aspect-ratio: 16 / 9;
	}
}

/* ------------------------------------------------
   Responsive — Mobile
   ------------------------------------------------ */

@media (max-width: 767px) {
	.stg-case-single__hero {
		height: clamp(320px, 50vh, 480px);
	}

	.stg-case-single__hero-glass {
		left: 20px;
		right: 20px;
		bottom: 20px;
		padding: 24px;
	}

	.stg-case-single__hero-title {
		font-size: clamp(26px, 6vw, 36px);
	}

	.stg-case-single__back {
		left: 20px;
		top: 20px;
		padding: 8px 14px;
		font-size: 10px;
	}

	.stg-case-single__body {
		padding: 48px 0;
	}

	.stg-case-single__body .stg-case-single__container {
		grid-template-columns: 1fr;
		gap: 40px;
	}

	.stg-case-single__sidebar {
		position: static;
	}

	.stg-case-single__container {
		padding: 0 20px;
	}

	.stg-case-single__gallery {
		padding: 0 0 48px;
	}

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

	.stg-case-single__gallery-item:first-child {
		grid-column: span 1;
		aspect-ratio: 16 / 9;
	}

	.stg-case-single__nav {
		padding: 48px 0;
	}

	.stg-case-single__nav-grid {
		grid-template-columns: 1fr;
		gap: 16px;
	}

	.stg-case-single__nav-item--next {
		text-align: left;
	}

	.stg-case-single__nav-item--next .stg-case-single__nav-direction {
		justify-content: flex-start;
	}

	.stg-case-single__label {
		margin-bottom: 24px;
	}
}

/* ------------------------------------------------
   Reduced Motion
   ------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
	.stg-case-single__gallery-img {
		transition: none;
	}

	.stg-case-single__nav-item {
		transition: none;
	}

	.stg-case-single__back {
		transition: none;
	}
}