:root {
	color-scheme: light;
	--bg: #f5f7fb;
	--surface: #ffffff;
	--surface-2: #eef2f8;
	--text: #111827;
	--text-2: #4b5563;
	--line: #d8dee9;
	--accent: #0b3d91;
	--accent-hover: #0a2f6e;
	--accent-soft: #e6edf8;
	--on-accent: #ffffff;
	--ok: #0f6b35;
	--ok-bg: #e3f4ea;
	--no: #a3261b;
	--no-bg: #fbe7e5;
	--na: #5b6472;
	--na-bg: #eceff3;
	--focus: #1d5fd6;
	--shadow: 0 1px 2px rgba(17, 24, 39, .06), 0 4px 16px rgba(17, 24, 39, .06);
}

@media (prefers-color-scheme: dark) {
	:root {
		color-scheme: dark;
		--bg: #0d1117;
		--surface: #161b22;
		--surface-2: #1f2630;
		--text: #e6edf3;
		--text-2: #a3aebb;
		--line: #2d3642;
		--accent: #8ab4ff;
		--accent-hover: #b3ceff;
		--accent-soft: #1b2940;
		--on-accent: #0d1117;
		--ok: #56d364;
		--ok-bg: #12301b;
		--no: #ff8a80;
		--no-bg: #3b1716;
		--na: #9aa4b1;
		--na-bg: #232a33;
		--focus: #8ab4ff;
		--shadow: none;
	}
}

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

[hidden] {
	display: none !important;
}

html {
	-webkit-text-size-adjust: 100%;
	text-size-adjust: 100%;
}

body {
	margin: 0;
	min-height: 100vh;
	min-height: 100dvh;
	display: flex;
	flex-direction: column;
	background: var(--bg);
	color: var(--text);
	font-family: system-ui, -apple-system, "Segoe UI Variable Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	font-size: 1rem;
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

code,
output.ip,
.mono,
.ua-code {
	font-family: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

a {
	color: var(--accent);
	text-underline-offset: .18em;
	text-decoration-thickness: from-font;
}

a:hover {
	color: var(--accent-hover);
}

:focus-visible {
	outline: 3px solid var(--focus);
	outline-offset: 2px;
}

h1,
h2 {
	margin: 0;
	line-height: 1.25;
	letter-spacing: -.01em;
}

p {
	margin: 0;
}

.container {
	width: 100%;
	max-width: 1100px;
	margin-inline: auto;
	padding-inline: clamp(16px, 4vw, 32px);
}

.skip-link {
	position: absolute;
	top: 10px;
	left: 16px;
	z-index: 100;
	padding: 10px 18px;
	border-radius: 999px;
	background: var(--accent);
	color: var(--on-accent);
	font-weight: 600;
	text-decoration: none;
	transform: translateY(-200%);
	transition: transform .15s ease;
}

.skip-link:focus {
	color: var(--on-accent);
	transform: none;
}

.dev-banner {
	padding-block: 8px;
	background: var(--na-bg);
	border-bottom: 1px solid var(--line);
	color: var(--text);
	font-size: .875rem;
}

.site-header {
	background: var(--surface);
	border-bottom: 1px solid var(--line);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	min-height: 64px;
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	min-height: 40px;
	color: var(--text);
	font-size: 1.125rem;
	font-weight: 700;
	letter-spacing: -.015em;
	text-decoration: none;
}

.brand:hover {
	color: var(--text);
}

.brand-mark {
	position: relative;
	flex: none;
	width: 28px;
	height: 28px;
	border-radius: 8px;
	background: var(--accent);
}

.brand-mark::before {
	content: "";
	position: absolute;
	inset: 7px;
	border: 2px solid var(--on-accent);
	border-radius: 50%;
}

.brand-mark::after {
	content: "";
	position: absolute;
	top: 13px;
	left: 7px;
	right: 7px;
	height: 2px;
	background: var(--on-accent);
}

.nav-link {
	display: inline-flex;
	align-items: center;
	min-height: 40px;
	padding: 0 18px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: var(--surface);
	color: var(--accent);
	font-weight: 600;
	text-decoration: none;
	transition: background-color .15s ease, border-color .15s ease;
}

.nav-link:hover {
	background: var(--accent-soft);
	border-color: var(--accent-soft);
	color: var(--accent);
}

main {
	flex: 1 0 auto;
	padding-block: clamp(20px, 4vw, 44px);
}

main:focus {
	outline: none;
}

.card {
	background: var(--surface);
	border: 1px solid var(--line);
	border-radius: 12px;
	box-shadow: var(--shadow);
	padding: clamp(14px, 3vw, 22px);
}

.card h2 {
	margin-bottom: 6px;
	font-size: 1.0625rem;
	font-weight: 650;
}

.eyebrow {
	margin: 0 0 6px;
	color: var(--text-2);
	font-size: .8125rem;
	font-weight: 600;
	letter-spacing: .07em;
	line-height: 1.4;
	text-transform: uppercase;
}

.ip {
	display: block;
	margin: 0 0 18px;
	color: var(--text);
	font-size: clamp(1.6rem, 6.5vw, 3rem);
	font-weight: 650;
	letter-spacing: -.02em;
	line-height: 1.15;
	overflow-wrap: break-word;
}

.btn {
	-webkit-appearance: none;
	appearance: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: 40px;
	padding: 0 18px;
	border: 1px solid transparent;
	border-radius: 999px;
	background: var(--accent);
	color: var(--on-accent);
	font: inherit;
	font-size: .9375rem;
	font-weight: 600;
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	cursor: pointer;
	transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.btn:hover {
	background: var(--accent-hover);
	color: var(--on-accent);
}

.btn-secondary {
	background: var(--surface);
	border-color: var(--line);
	color: var(--accent);
}

.btn-secondary:hover {
	background: var(--accent-soft);
	border-color: var(--accent-soft);
	color: var(--accent);
}

.btn:disabled,
.btn[aria-disabled="true"] {
	cursor: progress;
	opacity: .65;
}

.btn:disabled:hover,
.btn[aria-disabled="true"]:hover {
	background: var(--accent);
}

.btn-secondary:disabled:hover {
	background: var(--surface);
	border-color: var(--line);
}

.chips {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.chip {
	display: inline-flex;
	align-items: center;
	min-height: 32px;
	padding: 3px 12px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: var(--surface-2);
	color: var(--text-2);
	font-size: .875rem;
	font-weight: 500;
	overflow-wrap: anywhere;
}

.pill {
	display: inline-flex;
	align-items: center;
	max-width: 100%;
	padding: 1px 10px;
	border-radius: .875em;
	font-size: .8125rem;
	font-weight: 650;
	line-height: 1.6;
}

.pill-yes {
	background: var(--ok-bg);
	color: var(--ok);
}

.pill-no {
	background: var(--no-bg);
	color: var(--no);
}

.pill-na {
	background: var(--na-bg);
	color: var(--na);
}

.probe-detail {
	margin-left: 8px;
	color: var(--text-2);
	font-size: .875rem;
}

.home {
	display: grid;
	gap: 16px;
	max-width: 820px;
	margin-inline: auto;
}

.hero {
	padding: clamp(18px, 5vw, 36px);
}

.hero-actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 12px 16px;
}

.ua-summary {
	margin: 4px 0 14px;
	font-size: clamp(1.0625rem, 1rem + .6vw, 1.3125rem);
	font-weight: 600;
	line-height: 1.35;
	overflow-wrap: anywhere;
}

.ua-block {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-start;
	gap: 10px;
}

.ua-code {
	display: block;
	flex: 1 1 18rem;
	min-width: 0;
	padding: 10px 12px;
	border: 1px solid var(--line);
	border-radius: 8px;
	background: var(--surface-2);
	color: var(--text);
	font-size: .875rem;
	line-height: 1.5;
	overflow-wrap: anywhere;
}

.cta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	min-height: 60px;
	padding: 16px clamp(16px, 3vw, 24px);
	border-radius: 12px;
	background: var(--accent);
	box-shadow: var(--shadow);
	color: var(--on-accent);
	font-size: 1.0625rem;
	font-weight: 650;
	line-height: 1.35;
	text-decoration: none;
	transition: background-color .15s ease;
}

.cta:hover {
	background: var(--accent-hover);
	color: var(--on-accent);
}

.cta-arrow {
	flex: none;
	font-size: 1.375rem;
	line-height: 1;
	transition: transform .15s ease;
}

.cta:hover .cta-arrow {
	transform: translateX(3px);
}

.lede {
	color: var(--text-2);
	font-size: .9375rem;
	text-align: center;
}

.page-head {
	margin-bottom: 16px;
}

.page-head h1 {
	font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.25rem);
	letter-spacing: -.02em;
	line-height: 1.2;
}

.notice {
	margin-top: 12px;
	padding: 10px 14px;
	border-radius: 10px;
	background: var(--no-bg);
	color: var(--no);
	font-weight: 500;
}

.ip-panel {
	margin-bottom: 16px;
}

.toolbar {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.report-fallback {
	display: block;
	width: 100%;
	min-height: 14rem;
	margin-top: 14px;
	padding: 10px 12px;
	border: 1px solid var(--line);
	border-radius: 8px;
	background: var(--surface-2);
	color: var(--text);
	font-family: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
	font-size: .8125rem;
	line-height: 1.5;
	resize: vertical;
}

.cards {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 27rem), 1fr));
	gap: 16px;
	align-items: start;
}

.facts {
	margin: 0;
}

.fact {
	display: grid;
	grid-template-columns: minmax(8rem, 38%) 1fr;
	column-gap: 16px;
	padding-block: 10px;
	border-top: 1px solid var(--line);
}

.fact:first-child {
	border-top: 0;
}

.fact dt {
	color: var(--text-2);
	font-size: .9375rem;
}

.fact dd {
	min-width: 0;
	margin: 0;
	overflow-wrap: anywhere;
}

.fact .mono {
	font-size: .9375em;
}

.fact-wide {
	grid-template-columns: 1fr;
	row-gap: 6px;
}

.fact-note {
	display: block;
	margin-top: 4px;
	color: var(--text-2);
	font-size: .8125rem;
	line-height: 1.45;
}

.card-note {
	margin-top: 8px;
	padding-top: 10px;
	border-top: 1px solid var(--line);
	color: var(--text-2);
	font-size: .8125rem;
}

.fact-speed dd {
	position: relative;
	display: grid;
	justify-items: start;
	gap: 8px;
}

.speed-result {
	display: block;
	font-weight: 600;
}

.speed-result:empty {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip-path: inset(50%);
}

.error-page {
	max-width: 640px;
	margin-inline: auto;
}

.error-card h1 {
	margin-bottom: 10px;
	font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2rem);
}

.error-actions {
	margin-top: 18px;
}

.site-footer {
	background: var(--surface);
	border-top: 1px solid var(--line);
	color: var(--text-2);
	font-size: .875rem;
}

.footer-inner {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 4px 10px;
	padding-block: 20px;
	text-align: center;
}

.toast {
	position: fixed;
	left: 16px;
	right: 16px;
	bottom: max(20px, env(safe-area-inset-bottom));
	z-index: 50;
	width: fit-content;
	margin: 0 auto;
	padding: 10px 18px;
	border-radius: 999px;
	background: var(--text);
	box-shadow: var(--shadow);
	color: var(--bg);
	font-size: .9375rem;
	font-weight: 600;
	text-align: center;
	opacity: 0;
	pointer-events: none;
	transform: translateY(8px);
	transition: opacity .2s ease, transform .2s ease;
}

.toast.is-visible {
	opacity: 1;
	transform: none;
}

@media (max-width: 479.98px) {
	.fact {
		grid-template-columns: 1fr;
		row-gap: 2px;
	}

	.fact dt {
		font-size: .8125rem;
	}

	.header-inner {
		min-height: 58px;
	}
}

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		scroll-behavior: auto !important;
		transition: none !important;
		animation: none !important;
	}
}

@media (forced-colors: active) {
	.card,
	.chip,
	.pill,
	.nav-link,
	.cta,
	.ua-code,
	.notice,
	.toast {
		border: 1px solid CanvasText;
	}

	.btn {
		border-color: ButtonText;
	}

	.brand-mark {
		background: CanvasText;
	}

	.brand-mark::before {
		border-color: Canvas;
	}

	.brand-mark::after {
		background: Canvas;
	}

	:focus-visible {
		outline: 3px solid Highlight;
	}
}

@media print {
	:root {
		color-scheme: light;
		--bg: #f5f7fb;
		--surface: #ffffff;
		--surface-2: #eef2f8;
		--text: #111827;
		--text-2: #4b5563;
		--line: #d8dee9;
		--accent: #0b3d91;
		--accent-hover: #0a2f6e;
		--accent-soft: #e6edf8;
		--on-accent: #ffffff;
		--ok: #0f6b35;
		--ok-bg: #e3f4ea;
		--no: #a3261b;
		--no-bg: #fbe7e5;
		--na: #5b6472;
		--na-bg: #eceff3;
		--focus: #1d5fd6;
		--shadow: none;
	}

	body {
		background: var(--surface);
	}

	.btn,
	.toolbar,
	.site-nav,
	.skip-link,
	.toast,
	.cta,
	.dev-banner {
		display: none !important;
	}

	main {
		padding-block: 12px;
	}

	.cards {
		display: block;
	}

	.card {
		margin-bottom: 12px;
		box-shadow: none;
		break-inside: avoid;
	}
}