@font-face {
	font-family: "Manrope";
	font-style: normal;
	font-weight: 400 800;
	font-display: swap;
	src: url("../fonts/manrope-latin-variable.woff2") format("woff2");
}

@font-face {
	font-family: "Source Sans 3";
	font-style: normal;
	font-weight: 400 700;
	font-display: swap;
	src: url("../fonts/source-sans-3-latin-variable.woff2") format("woff2");
}

@font-face {
	font-family: "IBM Plex Mono";
	font-style: normal;
	font-weight: 400;
	font-display: swap;
	src: url("../fonts/ibm-plex-mono-latin-400.woff2") format("woff2");
}

@font-face {
	font-family: "IBM Plex Mono";
	font-style: normal;
	font-weight: 500;
	font-display: swap;
	src: url("../fonts/ibm-plex-mono-latin-500.woff2") format("woff2");
}

@font-face {
	font-family: "IBM Plex Mono";
	font-style: normal;
	font-weight: 600;
	font-display: swap;
	src: url("../fonts/ibm-plex-mono-latin-600.woff2") format("woff2");
}

:root {
	--color-ink-950: #101318;
	--color-ink-850: #20262d;
	--color-steel-650: #3f6473;
	--color-paper-50: #f6f4ef;
	--color-paper-0: #fff;
	--color-paper-100: #ece9e2;
	--color-text-900: #171a1f;
	--color-text-600: #5f666f;
	--color-border-300: #cfd2d2;
	--color-border-800: #343a42;
	--color-signal-550: #d92f75;
	--color-signal-100: #f8d9e7;
	--color-action-650: #245ce5;
	--color-action-750: #1947bc;
	--color-focus-500: #2f74ff;
	--color-data-baseline: #7a838d;
	--color-data-durable: #16856b;
	--color-data-attention: #c47a16;
	--color-data-negative: #b74747;
	--color-data-grid: #d7d9da;
	--font-heading: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
	--font-body: "Source Sans 3", "Segoe UI", Roboto, sans-serif;
	--font-data: "IBM Plex Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
	--space-1: 4px;
	--space-2: 8px;
	--space-3: 12px;
	--space-4: 16px;
	--space-6: 24px;
	--space-8: 32px;
	--space-12: 48px;
	--space-16: 64px;
	--space-24: 96px;
	--space-32: 128px;
	--space-40: 160px;
	--container-shell: 1440px;
	--container-standard: 1240px;
	--container-visual: 1360px;
	--container-reading: 720px;
	--container-notes: 600px;
	--page-gutter: 48px;
	--radius-sm: 4px;
	--radius-md: 8px;
	--focus-ring: 3px solid var(--color-focus-500);
	--transition-fast: 160ms ease;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--color-paper-50);
	color: var(--color-text-900);
	font-family: var(--font-body);
	font-size: clamp(1rem, 1.1vw, 1.0625rem);
	font-weight: 400;
	line-height: 1.65;
	text-rendering: optimizeLegibility;
}

body,
button,
input,
select,
textarea {
	font-family: var(--font-body);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	margin-block: 0 0.55em;
	font-family: var(--font-heading);
	font-weight: 650;
	letter-spacing: -0.025em;
}

h1 {
	font-size: clamp(3rem, 4.8vw, 5.25rem);
	line-height: 1.03;
}

h2 {
	font-size: clamp(2.25rem, 3.3vw, 3.75rem);
	font-weight: 620;
	line-height: 1.08;
}

h3 {
	font-size: clamp(1.4rem, 1.8vw, 2rem);
	font-weight: 620;
	line-height: 1.15;
}

p,
ul,
ol,
dl,
table,
figure {
	margin-block: 0 1.25em;
}

a {
	color: var(--color-action-650);
	text-underline-offset: 0.18em;
	text-decoration-thickness: 0.08em;
}

a:hover {
	color: var(--color-action-750);
}

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
	outline: var(--focus-ring);
	outline-offset: 3px;
}

img,
svg,
video {
	max-width: 100%;
	height: auto;
}

.zing-container {
	width: min(100% - (2 * var(--page-gutter)), var(--container-standard));
	margin-inline: auto;
}

.zing-container--shell {
	max-width: var(--container-shell);
}

.zing-container--standard {
	max-width: var(--container-standard);
}

.zing-container--visual {
	max-width: var(--container-visual);
}

.zing-container--reading {
	max-width: var(--container-reading);
}

.zing-container--notes {
	max-width: var(--container-notes);
}

.zing-grid {
	display: grid;
	grid-template-columns: repeat(12, minmax(0, 1fr));
	gap: 24px;
}

.zing-section {
	padding-block: clamp(var(--space-24), 8vw, var(--space-32));
}

.zing-section--dark {
	background: var(--color-ink-950);
	color: var(--color-paper-0);
}

.zing-eyebrow,
.zing-status,
.zing-data,
.zing-methodology {
	font-family: var(--font-data);
	font-variant-numeric: tabular-nums;
}

.zing-eyebrow,
.zing-status {
	font-size: 0.75rem;
	font-weight: 650;
	letter-spacing: 0.08em;
	line-height: 1.2;
	text-transform: uppercase;
}

.zing-body-large {
	font-size: clamp(1.125rem, 1.4vw, 1.25rem);
	line-height: 1.55;
}

.zing-data-hero {
	font-family: var(--font-data);
	font-size: clamp(3rem, 5vw, 5.5rem);
	font-weight: 600;
	font-variant-numeric: tabular-nums;
	line-height: 0.95;
}

.zing-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 44px;
	padding: 11px 18px;
	border: 1px solid currentcolor;
	border-radius: var(--radius-sm);
	font-family: var(--font-heading);
	font-size: 0.9375rem;
	font-weight: 650;
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.zing-button--primary {
	border-color: var(--color-action-650);
	background: var(--color-action-650);
	color: var(--color-paper-0);
}

.zing-button--primary:hover {
	border-color: var(--color-action-750);
	background: var(--color-action-750);
	color: var(--color-paper-0);
}

.zing-skip-link {
	position: fixed;
	top: var(--space-4);
	left: var(--space-4);
	z-index: 10000;
	padding: var(--space-3) var(--space-4);
	transform: translateY(-200%);
	background: var(--color-paper-0);
	color: var(--color-ink-950);
	font-weight: 700;
}

.zing-skip-link:focus {
	transform: translateY(0);
}

.zing-site-header {
	position: relative;
	z-index: 100;
	border-bottom: 1px solid var(--color-border-300);
	background: color-mix(in srgb, var(--color-paper-50) 96%, transparent);
}

/* UAE remains active during the verification gate; suppress only its legacy rendered header. */
body.ehf-header #masthead {
	display: none;
}

.zing-site-header__inner {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr) auto;
	align-items: center;
	gap: var(--space-8);
	min-height: 84px;
}

.zing-wordmark {
	display: inline-flex;
	align-items: baseline;
	gap: 0.3em;
	color: var(--color-ink-950);
	font-family: var(--font-heading);
	font-size: 1.3rem;
	font-weight: 750;
	letter-spacing: -0.04em;
	text-decoration: none;
}

.zing-wordmark span:last-child {
	color: var(--color-steel-650);
	font-weight: 550;
}

.zing-wordmark--light,
.zing-wordmark--light span:last-child {
	color: var(--color-paper-0);
}

.zing-nav__list {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: clamp(var(--space-4), 1.8vw, var(--space-8));
	margin: 0;
	padding: 0;
	list-style: none;
}

.zing-nav__list > li > a,
.zing-nav summary {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	color: var(--color-text-900);
	font-family: var(--font-heading);
	font-size: 0.9375rem;
	font-weight: 600;
	text-decoration: none;
	cursor: pointer;
}

.zing-nav details {
	position: relative;
}

.zing-nav summary::marker {
	color: var(--color-steel-650);
}

.zing-nav__panel {
	position: absolute;
	top: calc(100% + var(--space-3));
	left: 50%;
	display: grid;
	width: min(640px, 80vw);
	padding: var(--space-6);
	transform: translateX(-50%);
	border: 1px solid var(--color-border-300);
	background: var(--color-paper-0);
	box-shadow: 0 14px 38px rgb(16 19 24 / 12%);
}

.zing-nav__panel a {
	padding: var(--space-3);
	border-bottom: 1px solid var(--color-border-300);
	color: var(--color-text-900);
	text-decoration: none;
}

.zing-nav__panel a:last-child {
	border-bottom: 0;
}

.zing-mobile-nav {
	display: none;
}

.zing-site-main:focus {
	outline: none;
}

.zing-site-footer {
	padding-block: var(--space-16) var(--space-8);
	background: var(--color-ink-950);
	color: var(--color-paper-0);
}

.zing-site-footer__grid {
	display: grid;
	grid-template-columns: 2fr repeat(3, 1fr);
	gap: var(--space-12);
}

.zing-site-footer h2 {
	font-size: 0.75rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.zing-site-footer ul {
	margin: 0;
	padding: 0;
	list-style: none;
}

.zing-site-footer li + li {
	margin-top: var(--space-2);
}

.zing-site-footer a {
	color: var(--color-paper-0);
}

.zing-site-footer__brand p {
	max-width: 28ch;
	margin-top: var(--space-6);
	color: #d6dade;
}

.zing-site-footer__legal {
	margin-top: var(--space-12);
	padding-top: var(--space-6);
	border-top: 1px solid var(--color-border-800);
	color: #d6dade;
	font-size: 0.875rem;
}

.zing-evidence,
.zing-case-study {
	margin-block: var(--space-12);
	padding: clamp(var(--space-6), 4vw, var(--space-12));
	border-block: 1px solid var(--color-border-300);
	background: var(--color-paper-0);
}

.zing-prototype-notice {
	margin-bottom: var(--space-6);
	padding: var(--space-3) var(--space-4);
	border-left: 4px solid var(--color-data-attention);
	background: #fff5dd;
	font-family: var(--font-data);
	font-size: 0.875rem;
}

.zing-evidence__metric {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--space-6);
	margin-block: var(--space-8);
}

.zing-evidence__metric div {
	padding-top: var(--space-4);
	border-top: 3px solid var(--color-action-650);
}

.zing-evidence__metric dt,
.zing-context dt,
.zing-case-study dt {
	font-family: var(--font-data);
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
}

.zing-evidence__metric dd {
	margin: var(--space-2) 0 0;
	font-family: var(--font-data);
	font-size: clamp(1.75rem, 4vw, 3.5rem);
	font-variant-numeric: tabular-nums;
	line-height: 1;
}

.zing-context {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: var(--space-6);
}

.zing-context > div,
.zing-case-study__details > div {
	padding-top: var(--space-4);
	border-top: 1px solid var(--color-border-300);
}

.zing-context dd,
.zing-case-study dd {
	margin: var(--space-2) 0 0;
}

.zing-context__interpretation {
	grid-column: 1 / -1;
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: var(--space-6);
}

.zing-case-study__details {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: var(--space-6);
}

.zing-case-study__placeholder {
	display: grid;
	min-height: 220px;
	margin-block: var(--space-8);
	padding: var(--space-8);
	place-items: end start;
	border: 1px solid var(--color-border-800);
	background:
		linear-gradient(135deg, transparent 0 46%, rgb(217 47 117 / 24%) 46% 47%, transparent 47%),
		linear-gradient(90deg, var(--color-ink-950), var(--color-ink-850));
	color: var(--color-paper-0);
}

.zing-responsive-table {
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
}

table {
	width: 100%;
	border-collapse: collapse;
	font-variant-numeric: tabular-nums;
}

th,
td {
	padding: var(--space-3) var(--space-4);
	border-bottom: 1px solid var(--color-border-300);
	text-align: left;
	vertical-align: top;
}

th {
	font-family: var(--font-heading);
	font-weight: 650;
}

label,
legend {
	display: block;
	margin-bottom: var(--space-2);
	font-weight: 650;
}

input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
	width: 100%;
	min-height: 44px;
	padding: var(--space-3) var(--space-4);
	border: 1px solid var(--color-border-300);
	border-radius: var(--radius-sm);
	background: var(--color-paper-0);
	color: var(--color-text-900);
}

[aria-invalid="true"] {
	border-color: var(--color-data-negative) !important;
}

.zing-form-error {
	color: #912f2f;
	font-weight: 650;
}

@media (max-width: 1199px) {
	:root {
		--page-gutter: 32px;
	}

	.zing-grid {
		grid-template-columns: repeat(8, minmax(0, 1fr));
		gap: 20px;
	}

	.zing-nav--desktop,
	.zing-site-header__cta {
		display: none;
	}

	.zing-site-header__inner {
		grid-template-columns: 1fr auto;
	}

	.zing-mobile-nav {
		position: relative;
		display: block;
	}

	.zing-mobile-nav > summary {
		display: inline-flex;
		align-items: center;
		justify-content: center;
		min-width: 44px;
		min-height: 44px;
		font-family: var(--font-heading);
		font-weight: 650;
		cursor: pointer;
	}

	.zing-mobile-nav > nav {
		position: absolute;
		top: calc(100% + var(--space-4));
		right: 0;
		width: min(420px, calc(100vw - (2 * var(--page-gutter))));
		padding: var(--space-6);
		border: 1px solid var(--color-border-300);
		background: var(--color-paper-0);
		box-shadow: 0 14px 38px rgb(16 19 24 / 12%);
	}

	.zing-mobile-nav .zing-nav__list {
		display: grid;
		justify-content: stretch;
		gap: var(--space-1);
		margin-bottom: var(--space-6);
	}

	.zing-mobile-nav .zing-nav__list a,
	.zing-mobile-nav .zing-nav__list summary {
		display: flex;
		min-height: 44px;
		padding-block: var(--space-2);
		color: var(--color-text-900);
		font-weight: 600;
		text-decoration: none;
	}

	.zing-mobile-nav .zing-nav__panel {
		position: static;
		width: auto;
		padding: var(--space-2) 0 var(--space-4) var(--space-4);
		transform: none;
		border: 0;
		border-left: 2px solid var(--color-steel-650);
		box-shadow: none;
	}
}

@media (max-width: 767px) {
	:root {
		--page-gutter: 20px;
	}

	.zing-grid {
		grid-template-columns: repeat(4, minmax(0, 1fr));
		gap: 16px;
	}

	.zing-section {
		padding-block: clamp(var(--space-16), 18vw, 80px);
	}

	.zing-site-header__inner {
		min-height: 72px;
	}

	.zing-site-footer__grid,
	.zing-evidence__metric,
	.zing-context,
	.zing-context__interpretation,
	.zing-case-study__details {
		grid-template-columns: 1fr;
	}

	.zing-site-footer__brand {
		margin-bottom: var(--space-4);
	}

	.zing-context__interpretation {
		grid-column: auto;
	}
}

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		scroll-behavior: auto !important;
		transition-duration: 0.01ms !important;
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
	}
}

@media print {
	@page {
		margin: 18mm;
	}

	.zing-site-header,
	.zing-site-footer,
	.zing-skip-link,
	.zing-button,
	form {
		display: none !important;
	}

	body {
		background: #fff;
		color: #000;
		font-size: 11pt;
	}

	a {
		color: #000;
		text-decoration: underline;
	}

	a[href^="http"]::after {
		content: " (" attr(href) ")";
		font-size: 9pt;
	}

	.zing-evidence,
	.zing-case-study {
		break-inside: avoid;
		border-color: #000;
	}
}