/**
 * CitizenPay design system.
 *
 * One stylesheet, token-driven, no framework. Every component on the site is
 * built from the twelve primitives defined here, so a new calculator inherits
 * the whole system without adding CSS.
 *
 * Colour is used for meaning, not decoration: green marks primary actions and
 * verified results, rust marks errors, and everything else is ink on paper.
 */

/* ---------------------------------------------------------------------------
   Tokens
   --------------------------------------------------------------------------- */

:root {
	--cp-ink: #0F1A14;
	--cp-ink-2: #48584E;
	--cp-ink-3: #6E7D74;
	--cp-line: #DCE3DD;
	--cp-line-soft: #E9EEE9;
	--cp-ground: #EFF3EF;
	--cp-surface: #FFFFFF;
	--cp-accent: #0B6B3A;
	--cp-accent-soft: #E4EFE8;
	--cp-error: #9C3B24;
	--cp-error-soft: #F7EAE5;
	--cp-warn: #8A6A12;
	--cp-warn-soft: #F6EFDC;

	--cp-radius: 6px;
	--cp-radius-lg: 8px;
	--cp-shadow: 0 1px 2px rgba( 15, 26, 20, .05 ), 0 8px 24px -16px rgba( 15, 26, 20, .28 );

	--cp-display: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
	--cp-body: "Source Serif 4", Georgia, "Times New Roman", serif;
	--cp-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

	--cp-gap: 16px;
	--cp-gap-lg: 32px;
	--cp-max: 1120px;
	--cp-measure: 68ch;
}

/* ---------------------------------------------------------------------------
   Base
   --------------------------------------------------------------------------- */

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

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

body {
	margin: 0;
	background: var( --cp-ground );
	color: var( --cp-ink );
	font-family: var( --cp-body );
	font-size: 17px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6,
.cp-display {
	font-family: var( --cp-display );
	letter-spacing: -.018em;
	line-height: 1.15;
	margin: 0 0 .5em;
	text-wrap: balance;
}

h1 { font-size: clamp( 30px, 5vw, 44px ); font-weight: 800; }
h2 { font-size: clamp( 24px, 3.4vw, 32px ); font-weight: 700; }
h3 { font-size: 21px; font-weight: 700; }
h4 { font-size: 17px; font-weight: 600; }

p { margin: 0 0 1em; }

a {
	color: var( --cp-accent );
	text-underline-offset: 2px;
}

a:hover { text-decoration-thickness: 2px; }

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

/* Focus is always visible. Never remove this. */
:focus-visible {
	outline: 3px solid var( --cp-accent );
	outline-offset: 2px;
	border-radius: 3px;
}

.cp-sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect( 0, 0, 0, 0 );
	white-space: nowrap;
	border: 0;
}

.cp-skip {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var( --cp-accent );
	color: #fff;
	padding: 12px 18px;
	z-index: 100;
}

.cp-skip:focus {
	left: 0;
}

/* ---------------------------------------------------------------------------
   Layout
   --------------------------------------------------------------------------- */

.cp-wrap {
	max-width: var( --cp-max );
	margin: 0 auto;
	padding: 0 20px;
}

.cp-measure { max-width: var( --cp-measure ); }

.cp-section { padding: clamp( 40px, 6vw, 64px ) 0; }

.cp-section--soft { background: var( --cp-accent-soft ); }

.cp-section--surface { background: var( --cp-surface ); }

.cp-section__head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 24px;
}

.cp-section__head h2 { margin: 0; }

/* ---------------------------------------------------------------------------
   Header
   --------------------------------------------------------------------------- */

.cp-header {
	background: var( --cp-surface );
	border-bottom: 1px solid var( --cp-line );
	position: sticky;
	top: 0;
	z-index: 40;
}

.cp-header__bar {
	display: flex;
	align-items: center;
	gap: var( --cp-gap );
	max-width: var( --cp-max );
	margin: 0 auto;
	padding: 12px 20px;
}

.cp-logo {
	font-family: var( --cp-display );
	font-weight: 800;
	font-size: 20px;
	letter-spacing: -.03em;
	color: var( --cp-ink );
	text-decoration: none;
	margin-right: auto;
}

.cp-logo span { color: var( --cp-accent ); }

.cp-nav {
	display: flex;
	gap: 4px;
}

.cp-nav a {
	font-family: var( --cp-display );
	font-size: 15px;
	font-weight: 600;
	color: var( --cp-ink-2 );
	text-decoration: none;
	padding: 10px 12px;
	border-radius: var( --cp-radius );
}

.cp-nav a:hover,
.cp-nav a[aria-current="page"] {
	color: var( --cp-accent );
	background: var( --cp-accent-soft );
}

.cp-menu-toggle {
	display: none;
	background: none;
	border: 1px solid var( --cp-line );
	border-radius: var( --cp-radius );
	padding: 10px 12px;
	font-family: var( --cp-display );
	font-weight: 600;
	font-size: 15px;
	color: var( --cp-ink );
	cursor: pointer;
	min-height: 44px;
}

@media ( max-width: 860px ) {
	.cp-menu-toggle { display: block; }

	.cp-nav {
		display: none;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		flex-direction: column;
		background: var( --cp-surface );
		border-bottom: 1px solid var( --cp-line );
		padding: 8px 16px 16px;
		gap: 2px;
	}

	.cp-nav[data-open="true"] { display: flex; }

	.cp-nav a {
		padding: 14px 12px;
		font-size: 17px;
	}

	.cp-header__cta { display: none; }

	.cp-nav .cp-header__cta {
		display: block;
		margin-top: 8px;
	}
}

/* ---------------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------------- */

.cp-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	font-family: var( --cp-display );
	font-size: 16px;
	font-weight: 600;
	line-height: 1.2;
	min-height: 48px;
	padding: 13px 22px;
	border-radius: var( --cp-radius );
	border: 1px solid transparent;
	text-decoration: none;
	cursor: pointer;
	transition: background-color .12s ease, border-color .12s ease;
}

.cp-btn--primary {
	background: var( --cp-accent );
	color: #fff;
}

.cp-btn--primary:hover { background: #095930; }

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

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

.cp-btn:disabled { opacity: .55; cursor: not-allowed; }

@media ( max-width: 600px ) {
	.cp-calc .cp-btn--primary,
	.cp-hero .cp-btn { width: 100%; }
}

/* ---------------------------------------------------------------------------
   Forms
   --------------------------------------------------------------------------- */

.cp-field { margin: 0 0 var( --cp-gap ); }

.cp-field label {
	display: block;
	font-family: var( --cp-display );
	font-size: 14px;
	font-weight: 600;
	color: var( --cp-ink );
	margin-bottom: 6px;
}

.cp-input {
	width: 100%;
	min-height: 48px;
	padding: 12px 14px;
	font-family: var( --cp-display );
	font-size: 16px; /* 16px stops iOS zooming the page on focus. */
	color: var( --cp-ink );
	background: var( --cp-surface );
	border: 1px solid var( --cp-line );
	border-radius: var( --cp-radius );
}

.cp-input:focus {
	border-color: var( --cp-accent );
}

select.cp-input {
	appearance: none;
	background-image: linear-gradient( 45deg, transparent 50%, var( --cp-ink-2 ) 50% ), linear-gradient( 135deg, var( --cp-ink-2 ) 50%, transparent 50% );
	background-position: calc( 100% - 20px ) calc( 50% + 2px ), calc( 100% - 14px ) calc( 50% + 2px );
	background-size: 6px 6px;
	background-repeat: no-repeat;
	padding-right: 40px;
}

.cp-hint {
	display: block;
	font-size: 14px;
	color: var( --cp-ink-3 );
	margin-top: 6px;
	line-height: 1.45;
}

.cp-field--check label {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	font-weight: 500;
}

.cp-field--check input {
	width: 22px;
	height: 22px;
	margin-top: 1px;
	accent-color: var( --cp-accent );
}

.cp-field-grid {
	display: grid;
	grid-template-columns: repeat( auto-fit, minmax( 220px, 1fr ) );
	gap: 0 var( --cp-gap );
}

.cp-more {
	border-top: 1px solid var( --cp-line-soft );
	padding-top: var( --cp-gap );
	margin-bottom: var( --cp-gap );
}

.cp-more summary {
	font-family: var( --cp-display );
	font-size: 15px;
	font-weight: 600;
	color: var( --cp-accent );
	cursor: pointer;
	padding: 8px 0;
	min-height: 44px;
	display: flex;
	align-items: center;
}

/* ---------------------------------------------------------------------------
   Hero + bill checker
   --------------------------------------------------------------------------- */

.cp-hero {
	background: var( --cp-surface );
	border-bottom: 1px solid var( --cp-line );
	padding: clamp( 32px, 6vw, 64px ) 0;
}

.cp-hero__title { margin-bottom: 12px; }

.cp-hero__sub {
	font-size: clamp( 17px, 2vw, 20px );
	color: var( --cp-ink-2 );
	max-width: 56ch;
	margin-bottom: 24px;
}

.cp-checker {
	background: var( --cp-ground );
	border: 1px solid var( --cp-line );
	border-radius: var( --cp-radius-lg );
	padding: 20px;
	max-width: 560px;
	box-shadow: var( --cp-shadow );
}

.cp-checker__title {
	font-size: 18px;
	margin-bottom: 14px;
}

/* The independence statement is part of the product, not fine print. */
.cp-trust {
	display: flex;
	align-items: center;
	gap: 8px;
	font-family: var( --cp-display );
	font-size: 14px;
	color: var( --cp-ink-2 );
	margin-top: 18px;
}

.cp-trust::before {
	content: "";
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var( --cp-accent );
	flex: none;
}

/* ---------------------------------------------------------------------------
   Cards
   --------------------------------------------------------------------------- */

.cp-grid {
	display: grid;
	gap: 12px;
	grid-template-columns: repeat( auto-fill, minmax( 150px, 1fr ) );
}

.cp-grid--wide {
	grid-template-columns: repeat( auto-fill, minmax( 260px, 1fr ) );
}

.cp-provider-card {
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-height: 84px;
	padding: 14px 16px;
	background: var( --cp-surface );
	border: 1px solid var( --cp-line );
	border-radius: var( --cp-radius );
	text-decoration: none;
	color: var( --cp-ink );
	transition: border-color .12s ease;
}

.cp-provider-card:hover {
	border-color: var( --cp-accent );
}

.cp-provider-card__code {
	font-family: var( --cp-display );
	font-weight: 700;
	font-size: 17px;
	letter-spacing: -.01em;
}

.cp-provider-card__name {
	font-size: 13px;
	color: var( --cp-ink-3 );
	line-height: 1.35;
	margin-top: 2px;
}

.cp-tool-card {
	display: block;
	padding: 20px;
	background: var( --cp-surface );
	border: 1px solid var( --cp-line );
	border-radius: var( --cp-radius );
	text-decoration: none;
	color: var( --cp-ink );
	transition: border-color .12s ease;
}

.cp-tool-card:hover { border-color: var( --cp-accent ); }

.cp-tool-card__title {
	font-family: var( --cp-display );
	font-weight: 700;
	font-size: 17px;
	margin: 0 0 6px;
}

.cp-tool-card__desc {
	font-size: 15px;
	color: var( --cp-ink-2 );
	margin: 0;
	line-height: 1.5;
}

/* ---------------------------------------------------------------------------
   Calculator result
   --------------------------------------------------------------------------- */

.cp-calc {
	background: var( --cp-surface );
	border: 1px solid var( --cp-line );
	border-radius: var( --cp-radius-lg );
	padding: 22px;
	box-shadow: var( --cp-shadow );
}

.cp-calc__result:empty { display: none; }

.cp-result {
	margin-top: 24px;
	border-top: 1px solid var( --cp-line );
	padding-top: 20px;
}

.cp-result__head {
	background: var( --cp-accent-soft );
	border-radius: var( --cp-radius );
	padding: 18px 20px;
	margin-bottom: 18px;
}

.cp-result__label {
	display: block;
	font-family: var( --cp-display );
	font-size: 13px;
	font-weight: 600;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: var( --cp-accent );
	margin-bottom: 4px;
}

.cp-result__total {
	font-family: var( --cp-display );
	font-size: clamp( 30px, 6vw, 40px );
	font-weight: 800;
	letter-spacing: -.03em;
	color: var( --cp-ink );
	font-variant-numeric: tabular-nums;
	line-height: 1.1;
}

/* Wide content scrolls inside its own container; the page never does. */
.cp-breakdown {
	width: 100%;
	border-collapse: collapse;
	font-family: var( --cp-display );
	font-size: 15px;
	display: block;
	overflow-x: auto;
}

.cp-breakdown tbody { display: table; width: 100%; }

.cp-breakdown th {
	text-align: left;
	font-weight: 500;
	color: var( --cp-ink-2 );
	padding: 11px 12px 11px 0;
	border-bottom: 1px solid var( --cp-line-soft );
}

.cp-breakdown td {
	text-align: right;
	padding: 11px 0;
	border-bottom: 1px solid var( --cp-line-soft );
	font-variant-numeric: tabular-nums;
	white-space: nowrap;
	color: var( --cp-ink );
}

.cp-breakdown__name {
	display: block;
	color: var( --cp-ink );
	font-weight: 600;
}

.cp-breakdown__note {
	display: block;
	font-size: 13px;
	color: var( --cp-ink-3 );
	font-weight: 400;
	margin-top: 2px;
}

.cp-breakdown__row--total th,
.cp-breakdown__row--total td {
	border-top: 2px solid var( --cp-ink );
	border-bottom: 0;
	font-weight: 700;
	font-size: 17px;
	padding-top: 14px;
}

/* Provenance — where the numbers came from. */
.cp-provenance {
	margin-top: 22px;
	padding: 16px 18px;
	background: var( --cp-ground );
	border-radius: var( --cp-radius );
}

.cp-provenance__title {
	font-size: 13px;
	letter-spacing: .07em;
	text-transform: uppercase;
	color: var( --cp-ink-3 );
	margin: 0 0 10px;
}

.cp-provenance__list {
	display: grid;
	grid-template-columns: auto 1fr;
	gap: 4px 16px;
	margin: 0;
	font-family: var( --cp-display );
	font-size: 14px;
}

.cp-provenance__list dt { color: var( --cp-ink-3 ); }
.cp-provenance__list dd { margin: 0; color: var( --cp-ink ); }

/* The disclaimer is never hidden and never collapsed. */
.cp-disclaimer {
	margin: 18px 0 0;
	padding: 14px 16px;
	background: var( --cp-warn-soft );
	border-left: 3px solid var( --cp-warn );
	border-radius: 0 var( --cp-radius ) var( --cp-radius ) 0;
	font-size: 15px;
	line-height: 1.5;
	color: var( --cp-ink );
}

/* States: loading, error, unconfigured. */
.cp-skel {
	display: block;
	height: 14px;
	margin-bottom: 12px;
	border-radius: 4px;
	background: linear-gradient( 90deg, var( --cp-line-soft ) 25%, var( --cp-ground ) 50%, var( --cp-line-soft ) 75% );
	background-size: 200% 100%;
	animation: cp-shimmer 1.2s infinite linear;
}

.cp-skel:first-of-type { height: 48px; margin-bottom: 20px; }

@keyframes cp-shimmer {
	from { background-position: 200% 0; }
	to { background-position: -200% 0; }
}

.cp-result--error {
	background: var( --cp-error-soft );
	border-left: 3px solid var( --cp-error );
	border-top: 0;
	border-radius: 0 var( --cp-radius ) var( --cp-radius ) 0;
	padding: 16px 18px;
}

.cp-errors {
	margin: 0;
	padding-left: 1.1em;
	color: var( --cp-error );
	font-family: var( --cp-display );
	font-size: 15px;
}

.cp-unconfigured,
.cp-result--unconfigured {
	background: var( --cp-warn-soft );
	border-radius: var( --cp-radius );
	padding: 22px;
	border-top: 0;
}

.cp-unconfigured__title,
.cp-result__title {
	font-size: 19px;
	margin: 0 0 10px;
	color: var( --cp-ink );
}

.cp-unconfigured__sub {
	font-size: 14px;
	letter-spacing: .05em;
	text-transform: uppercase;
	color: var( --cp-ink-3 );
	margin: 18px 0 8px;
}

.cp-unconfigured__links {
	margin: 0;
	padding-left: 1.1em;
}

.cp-unconfigured__links li { margin-bottom: 6px; }

/* Report a problem. */
.cp-report { margin-top: 18px; }

.cp-report__open {
	background: none;
	border: 0;
	padding: 8px 0;
	min-height: 44px;
	font-family: var( --cp-display );
	font-size: 14px;
	color: var( --cp-accent );
	text-decoration: underline;
	text-underline-offset: 2px;
	cursor: pointer;
}

.cp-report__form { margin-top: 10px; }
.cp-report__form .cp-input { margin-bottom: 10px; }
.cp-report__status { font-size: 14px; color: var( --cp-ink-2 ); margin: 8px 0 0; }

/* ---------------------------------------------------------------------------
   Ad slots — reserved height so they can never shift layout
   --------------------------------------------------------------------------- */

.cp-ad {
	display: block;
	margin: var( --cp-gap-lg ) auto;
	min-height: 250px;
	max-width: 728px;
	background: var( --cp-line-soft );
	border-radius: var( --cp-radius );
	contain: layout size;
}

.cp-ad::before {
	content: "Advertisement";
	display: block;
	padding-top: 8px;
	text-align: center;
	font-family: var( --cp-display );
	font-size: 11px;
	letter-spacing: .1em;
	text-transform: uppercase;
	color: var( --cp-ink-3 );
}

/* Never inside a form or a result panel. Enforced here, not just in policy. */
.cp-calc .cp-ad,
.cp-result .cp-ad,
.cp-checker .cp-ad { display: none !important; }

/* ---------------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------------- */

.cp-footer {
	background: var( --cp-surface );
	border-top: 1px solid var( --cp-line );
	padding: 44px 0 32px;
	margin-top: var( --cp-gap-lg );
}

.cp-footer__cols {
	display: grid;
	grid-template-columns: repeat( auto-fit, minmax( 170px, 1fr ) );
	gap: 28px;
	margin-bottom: 32px;
}

.cp-footer h3 {
	font-size: 13px;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: var( --cp-ink-3 );
	margin-bottom: 12px;
}

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

.cp-footer li { margin-bottom: 7px; }

.cp-footer a {
	font-family: var( --cp-display );
	font-size: 15px;
	color: var( --cp-ink-2 );
	text-decoration: none;
}

.cp-footer a:hover { color: var( --cp-accent ); text-decoration: underline; }

.cp-footer__legal {
	border-top: 1px solid var( --cp-line );
	padding-top: 20px;
	font-size: 14px;
	color: var( --cp-ink-3 );
	max-width: 80ch;
}

/* ---------------------------------------------------------------------------
   Breadcrumbs + guides
   --------------------------------------------------------------------------- */

.cp-breadcrumb {
	font-family: var( --cp-display );
	font-size: 14px;
	color: var( --cp-ink-3 );
	padding: 14px 0 0;
}

.cp-breadcrumb a { color: var( --cp-ink-2 ); text-decoration: none; }
.cp-breadcrumb a:hover { color: var( --cp-accent ); }

.cp-prose { max-width: var( --cp-measure ); }
.cp-prose h2 { margin-top: 1.6em; }
.cp-prose h3 { margin-top: 1.4em; }

.cp-faq { border-top: 1px solid var( --cp-line ); }

.cp-faq details {
	border-bottom: 1px solid var( --cp-line );
}

.cp-faq summary {
	font-family: var( --cp-display );
	font-weight: 600;
	font-size: 16px;
	padding: 16px 0;
	cursor: pointer;
	min-height: 44px;
	display: flex;
	align-items: center;
	list-style: none;
}

.cp-faq summary::-webkit-details-marker { display: none; }

.cp-faq summary::after {
	content: "+";
	margin-left: auto;
	font-size: 20px;
	color: var( --cp-accent );
}

.cp-faq details[open] summary::after { content: "−"; }

.cp-faq details > div { padding: 0 0 16px; }

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

@media ( prefers-reduced-motion: reduce ) {
	*,
	*::before,
	*::after {
		animation-duration: .001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: .001ms !important;
	}
}