/*
 * Case Studies page (/case-studies/).
 * Loaded only on that page. Everything is scoped to .si-cs.
 */
.si-cs {
	--si-cs-red-soft: #fdecef;
	--si-cs-bg: #f7f7fa;
	--si-cs-line: #e4e4ec;
	--si-cs-line-soft: #ececf1;
	--si-cs-muted: #55576e;
	background: var(--si-color-white);
	color: var(--si-color-midnight);
	line-height: 1.6;
}

.si-cs :where(h1, h2, h3, p, figure, blockquote, ul) {
	margin: 0;
	padding: 0;
}

.si-cs :where(h1, h2, h3) {
	color: var(--si-color-midnight);
	font-family: var(--si-font-display);
	letter-spacing: -0.02em;
	line-height: 1.15;
}

.si-cs-wrap {
	margin: 0 auto;
	max-width: 1240px;
	padding: 0 24px;
}

.si-cs-btn {
	align-items: center;
	background: var(--si-color-red);
	border-radius: 999px;
	color: var(--si-color-white);
	display: inline-flex;
	font: 600 15px/1 var(--si-font-display);
	gap: 10px;
	padding: 16px 28px;
	text-decoration: none;
	transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.si-cs-btn:hover,
.si-cs-btn:focus-visible {
	background: var(--si-color-white);
	color: var(--si-color-red);
	transform: translateY(-2px);
}

/* Hero */
.si-cs-hero {
	background: var(--si-color-midnight);
	isolation: isolate;
	overflow: hidden;
	padding: 110px 0;
	position: relative;
	text-align: center;
}

.si-cs-hero::after {
	background: radial-gradient(circle, rgba(217, 4, 42, 0.26) 0%, rgba(217, 4, 42, 0) 65%);
	content: "";
	height: 620px;
	pointer-events: none;
	position: absolute;
	right: -160px;
	top: -220px;
	width: 620px;
	z-index: -1;
}

.si-cs-hero h1 {
	color: var(--si-color-white);
	font-size: clamp(36px, 5.5vw, 64px);
	font-weight: 700;
	line-height: 1.12;
	margin: 0 auto 20px;
	max-width: 860px;
	text-wrap: balance;
}

.si-cs-hero h1 span {
	color: var(--si-color-red);
}

.si-cs-hero p {
	color: rgba(255, 255, 255, 0.72);
	font-size: 18px;
	line-height: 1.65;
	margin: 0 auto;
	max-width: 640px;
}

/* Case-study grid */
.si-cs-list {
	padding: 96px 0 100px;
}

.si-cs-list__head {
	margin-bottom: 40px;
	text-align: center;
}

.si-cs-list__head h2,
.si-cs-testi__head h2 {
	font-size: clamp(28px, 3.4vw, 42px);
}

.si-cs-list__head h2 {
	margin-bottom: 28px;
}

.si-cs-filters {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	justify-content: center;
}

.si-cs-filters button {
	background: var(--si-color-white);
	border: 1px solid var(--si-cs-line);
	border-radius: 999px;
	color: var(--si-cs-muted);
	cursor: pointer;
	font: 500 14px/1 var(--si-font-body);
	padding: 11px 20px;
	transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.si-cs-filters button:hover {
	border-color: var(--si-color-midnight);
	color: var(--si-color-midnight);
}

.si-cs-filters button.is-active {
	background: var(--si-color-midnight);
	border-color: var(--si-color-midnight);
	color: var(--si-color-white);
}

/* Three per row; a short row stays centred instead of hugging the left edge. */
.si-cs-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 24px;
	justify-content: center;
	list-style: none;
}

.si-cs-grid__item {
	display: flex;
	flex: 0 0 calc((100% - 48px) / 3);
	min-width: 0;
}

.si-cs-grid__item[hidden] {
	display: none;
}

.si-cs-empty {
	color: var(--si-cs-muted);
	font-size: 16px;
	padding: 24px 0;
	text-align: center;
}

.si-cs-tag {
	background: var(--si-cs-red-soft);
	border-radius: 999px;
	color: var(--si-color-red);
	display: inline-block;
	font-size: 12px;
	font-weight: 600;
	padding: 6px 12px;
}

/* Card hover: lift, soft shadow, red border tint, red bar slides in, logo turns red. */
.si-cs-card {
	background: var(--si-color-white);
	border: 1px solid var(--si-cs-line);
	border-radius: 14px;
	color: inherit;
	display: flex;
	flex: 1;
	flex-direction: column;
	overflow: hidden;
	padding: 32px;
	position: relative;
	text-decoration: none;
	transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.si-cs-card::before {
	background: var(--si-color-red);
	content: "";
	height: 3px;
	left: 0;
	pointer-events: none;
	position: absolute;
	top: 0;
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.35s ease;
	width: 100%;
}

.si-cs-card:hover,
.si-cs-card:focus-visible {
	border-color: rgba(217, 4, 42, 0.35);
	box-shadow: 0 22px 44px rgba(43, 44, 67, 0.12);
	color: inherit;
	transform: translateY(-6px);
}

.si-cs-card:hover::before,
.si-cs-card:focus-visible::before {
	transform: scaleX(1);
}

.si-cs-card__top {
	align-items: center;
	display: flex;
	justify-content: space-between;
	margin-bottom: 24px;
}

.si-cs-card__logo {
	align-items: center;
	background: var(--si-cs-red-soft);
	border-radius: 10px;
	color: var(--si-color-red);
	display: flex;
	font: 700 15px var(--si-font-display);
	height: 48px;
	justify-content: center;
	transition: background-color 0.3s ease, color 0.3s ease;
	width: 48px;
}

.si-cs-card:hover .si-cs-card__logo {
	background: var(--si-color-red);
	color: var(--si-color-white);
}

.si-cs-card h3 {
	flex: 1;
	font-size: 19px;
	font-weight: 600;
	line-height: 1.35;
	margin-bottom: 24px;
}

.si-cs-card__metrics {
	border-top: 1px solid var(--si-cs-line-soft);
	display: grid;
	gap: 12px;
	grid-template-columns: 1fr 1fr;
	padding-top: 22px;
}

.si-cs-card__metrics b {
	color: var(--si-color-midnight);
	display: block;
	font: 800 28px/1 var(--si-font-display);
	margin-bottom: 6px;
}

.si-cs-card__metrics b.is-accent {
	color: var(--si-color-red);
}

.si-cs-card__metrics span span {
	color: var(--si-cs-muted);
	display: block;
	font-size: 13px;
	line-height: 1.4;
}

.si-cs-card__link {
	align-items: center;
	color: var(--si-color-midnight);
	display: inline-flex;
	font: 600 14px var(--si-font-display);
	gap: 8px;
	margin-top: 24px;
	transition: color 0.3s ease;
}

.si-cs-card__link .si-icon {
	transition: transform 0.25s ease;
}

.si-cs-card:hover .si-cs-card__link {
	color: var(--si-color-red);
}

.si-cs-card:hover .si-cs-card__link .si-icon {
	transform: translateX(4px);
}

/* Testimonials */
.si-cs-testi {
	background: var(--si-cs-bg);
	padding: 100px 0;
}

.si-cs-testi__head {
	margin-bottom: 44px;
	text-align: center;
}

.si-cs-viewport {
	overflow: hidden;
	padding: 6px 2px 10px;
}

.si-cs-track {
	display: flex;
	gap: 24px;
	width: max-content;
	will-change: transform;
}

.si-cs-tcard {
	background: var(--si-color-white);
	border: 1px solid var(--si-cs-line);
	border-radius: 14px;
	display: flex;
	flex: 0 0 var(--si-cs-card-w, 380px);
	flex-direction: column;
	padding: 34px;
}

.si-cs-rating {
	align-items: center;
	display: flex;
	gap: 8px;
	margin-bottom: 18px;
}

/* Stars fill to the review's real rating, so 4.5 shows four and a half. */
.si-cs-stars {
	-webkit-background-clip: text;
	background-clip: text;
	background-image: linear-gradient(90deg, #ffb800 var(--si-cs-stars-fill, 100%), #d9dae3 var(--si-cs-stars-fill, 100%));
	color: transparent;
	font-size: 18px;
	letter-spacing: 3px;
	line-height: 1;
	margin-right: -3px;
}

.si-cs-rating__value {
	color: var(--si-color-midnight);
	font: 700 14px/1 var(--si-font-display);
}

.si-cs-tcard blockquote {
	flex: 1;
}

.si-cs-tcard blockquote p {
	color: var(--si-cs-muted);
	font-size: 16px;
	margin-bottom: 26px;
}

.si-cs-person {
	align-items: center;
	border-top: 1px solid var(--si-cs-line-soft);
	display: flex;
	gap: 14px;
	padding-top: 22px;
}

.si-cs-avatar {
	align-items: center;
	background: var(--si-color-midnight);
	border-radius: 50%;
	color: var(--si-color-white);
	display: flex;
	flex-shrink: 0;
	font: 700 15px var(--si-font-display);
	height: 44px;
	justify-content: center;
	width: 44px;
}

.si-cs-person b {
	color: var(--si-color-midnight);
	display: block;
	font-family: var(--si-font-display);
	font-size: 15px;
}

.si-cs-person__name {
	min-width: 0;
}

.si-cs-person__name span {
	color: var(--si-cs-muted);
	display: block;
	font-size: 13px;
}

.si-cs-person__source {
	color: var(--si-color-red);
	font-size: 13px;
	font-weight: 600;
	margin-left: auto;
	text-decoration: none;
	white-space: nowrap;
}

.si-cs-person__source:hover,
.si-cs-person__source:focus-visible {
	color: var(--si-color-red-dark);
	text-decoration: underline;
}

/* One or two reviews (or reduced motion): no scrolling, the cards sit centred. */
.si-cs-testi--static .si-cs-track {
	flex-wrap: wrap;
	justify-content: center;
	width: auto;
}

.si-cs-testi--static .si-cs-tcard {
	flex: 0 1 calc((100% - 48px) / 3);
	min-width: min(100%, 320px);
}

/* Closing call to action */
.si-cs-cta {
	padding: 100px 0;
}

.si-cs-cta__box {
	background: var(--si-color-midnight);
	border-radius: 28px;
	isolation: isolate;
	overflow: hidden;
	padding: 80px 40px;
	position: relative;
	text-align: center;
}

.si-cs-cta__box::before {
	background: radial-gradient(520px 320px at 0% 0%, rgba(217, 4, 42, 0.3), transparent 70%), radial-gradient(420px 280px at 100% 100%, rgba(255, 255, 255, 0.05), transparent 70%);
	content: "";
	inset: 0;
	pointer-events: none;
	position: absolute;
	z-index: -1;
}

.si-cs-cta__box h2 {
	color: var(--si-color-white);
	font-size: clamp(30px, 4vw, 50px);
	margin: 0 auto 18px;
	max-width: 760px;
}

.si-cs-cta__box p {
	color: #c4c5d6;
	font-size: 18px;
	margin: 0 auto 36px;
	max-width: 560px;
}

.si-cs-cta__box .si-cs-btn:focus-visible {
	outline-color: var(--si-color-white);
}

@media (max-width: 1024px) {
	.si-cs-grid__item {
		flex-basis: calc((100% - 24px) / 2);
	}

	.si-cs-testi--static .si-cs-tcard {
		flex-basis: calc((100% - 24px) / 2);
	}
}

@media (max-width: 767px) {
	.si-cs-hero {
		padding: 72px 0;
	}

	.si-cs-hero::after {
		height: 360px;
		right: -160px;
		top: -160px;
		width: 360px;
	}

	.si-cs-list {
		padding-top: 64px;
	}

	.si-cs-grid__item {
		flex-basis: 100%;
	}

	.si-cs-filters {
		flex-wrap: nowrap;
		justify-content: flex-start;
		overflow-x: auto;
		padding-bottom: 6px;
		scrollbar-width: none;
	}

	.si-cs-filters button {
		white-space: nowrap;
	}

	.si-cs-tcard {
		padding: 28px 24px;
	}

	.si-cs-testi--static .si-cs-tcard {
		flex-basis: 100%;
	}

	.si-cs-cta__box {
		border-radius: 22px;
		padding: 56px 24px;
	}

	.si-cs-cta__box .si-cs-btn {
		justify-content: center;
		width: 100%;
	}
}

@media (prefers-reduced-motion: reduce) {
	.si-cs-card:hover,
	.si-cs-card:focus-visible,
	.si-cs-btn:hover,
	.si-cs-btn:focus-visible {
		transform: none;
	}
}