/* global colours, spacing, fonts and utitlity classes */

:root {
	--color-primary-text: #333333;
	--color-supplementary-text: #666666;
	--color-primary-background: #ffffff;
	--color-dark-background: #333333;
	--color-light-background: #ffffff;
	--color-light-text: #fffaf0;
	--color-link: #4c9fd5;
	--color-trace-grey: #eeeeee;
	--color-pale-grey: #dddddd;
	/* primary chart colors */
	--color-dark-blue: #0b4572;
	--color-yellow: #efc530;
	--color-light-blue: #2f8fce;
	--color-red: #c7432b;
	--color-light-grey: #999999;
	--color-lilac: #a14a7b;
	--color-orange: #df9239;
	/* secondary chart colors*/
	--color-indigo: #673b9b;
	--color-pale-pink: #ffada9;
	--color-pale-blue: #ade2ea;
	--color-brown: #7c5641;

	/* measurements */
	--page-max-width: 1270px;
	--graphic-max-width: 1080px;
	--readable-max-width: 780px;

	--border-thin: 1px;
	--border-thick: 4px;
	
	--ratio: 1.5;
	--s-5: calc(var(--s-4) / var(--ratio));
	--s-4: calc(var(--s-3) / var(--ratio));
	--s-3: calc(var(--s-2) / var(--ratio));
	--s-2: calc(var(--s-1) / var(--ratio));
	--s-1: calc(var(--s0) / var(--ratio));
	--s0: 1rem;
	--s1: calc(var(--s0) * var(--ratio));
	--s2: calc(var(--s1) * var(--ratio));
	--s3: calc(var(--s2) * var(--ratio));
	--s4: calc(var(--s3) * var(--ratio));
	--s5: calc(var(--s4) * var(--ratio));
	--measure: 40rem;

	--serif: "Pt serif", "Times New Roman", Times, serif;
	--sans-serif: "PT Sans", Helvetica, sans-serif;
	--sans-serif-narrow: "PT Sans Narrow" , Helvetica, sans-serif;
}

/*CSS Reset*/
/* Box sizing rules */
*,
*::before,
*::after {
	box-sizing: border-box;
}

/* Remove default margin */
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
	margin: 0;
}

/* Remove list styles on ul, ol elements with a list role, which suggests default styling will be removed */
ul[role='list'],
ol[role='list'] {
	list-style: none;
}

/* Set core root defaults */
html:focus-within {
	scroll-behavior: smooth;
}

html {
  scroll-behavior: smooth;
}

/* Set core body defaults */
body {
	min-height: 100vh;
	text-rendering: optimizeSpeed;
	line-height: 1.5;
}

figcaption{
	font-family: var(--sans-serif);
	font-size: var(--s0);
	color: var(--color-supplementary-text);
	margin-right: var(--s4);
	line-height: var(--s1);
	margin-top: var(--s-5);
}

/* A elements that don't have a class get default styles */
a:not([class]) {
	text-decoration-skip-ink: auto;
}

/* Make images easier to work with */
img,
picture {
	max-width: 100%;
	display: block;
}

/* Inherit fonts for inputs and buttons */
input,
button,
textarea,
select {
	font: inherit;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@media (prefers-reduced-motion: reduce) {
	html:focus-within {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}
/* end CSS reset */

body {
	color: var(--color-primary-text);
	background-color: var(--color-primary-background);
	font-family: var(--sans-serif);
	font-size: 12px;
}

a {
	/* color: var(--color-link); */
	color: #0C2635;
	text-decoration: underline;
}

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

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

/* "every layout" based stuff */
.stack {
	display: flex;
	flex-direction: column;
	justify-content: flex-start;
}

.stack > * {
	margin-block: 0;
}

.stack > * + * {
	margin-block-start: var(--s1, 1.5rem);
}

.center {
	box-sizing: content-box;
	margin-inline: auto;
	max-inline-size: var(--page-max-width);
}

.cluster {
	display: flex;
	flex-wrap: wrap;
	gap: var(--s0);
	justify-content: flex-start;
	align-items: center;
}

.box {
	padding: var(--s0);
	outline: 0.125rem solid transparent;
	outline-offset: -0.125rem;
}

.cluster,
.cluster-end {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space, 1rem);
	align-items: center;
}

.cluster-end {
	justify-content: flex-end;
}

.cluster {
	justify-content: flex-start;
}

/* typography */

h1 {
	font-family: var(--serif);
	font-size: 3.25rem;
	line-height: 4.25rem;
}

code {
	background-color: var(--color-pale-blue);
}

p,li {
	font-family: var(--serif);
	font-size: 1.25rem;
	line-height: 2.25rem;
	box-sizing: content-box;
	width: 100%;
	max-width: var(--readable-max-width);
}

article h2,
article .subtitle,
article p,
article li{
	box-sizing: content-box;
	width: 100%;
	max-width: var(--readable-max-width);
	margin: auto;
}

article h2{
	font-size: var(--s2);
	font-family: var(--sans-serif-narrow);
	font-weight: 700;
}
@media (max-width:810px){
	article{
		padding-left:1em;
		padding-right: 1em;
	}
}

blockquote {
	width: 100%;
	max-width: var(--readable-max-width);
	margin: auto;
}

blockquote p{
	padding-left: var(--s1);
	padding-right: var(--s2);
	border-left: var(--border-thick) solid #4d8e4d;	
	width: auto;
}

p.caption{
	font-family: var(--sans-serif);
	font-size: 1.2em;
	color: var(--color-supplementary-text);
	line-height: var(--s1);
	margin-top: var(--s-5);
}

p.stand-first {
	font-size: var(--s1);
	line-height: 2.6rem;
	font-style: italic;
	text-align: center;
	color: #333333;

	box-sizing: content-box;
	width: 100%;
	max-width: var(--readable-max-width);
	margin: auto;
	margin-top: 1.5em;
	margin-bottom: 0.4em;
}

@media (max-width:500px){
	p.stand-first {
		font-size: 1.5rem;
	}
}

.two-col{
	width:100%;
	max-width: var(--readable-max-width);
	margin:auto;
	display: grid;
	grid-template-columns: 1fr 1fr;
}

.two-col.wide{
	max-width: var(--graphic-max-width);
	column-gap: 2em;
}

.two-col .source{
	margin-top:var(--s-5);
}

@media (max-width: 650px) {
	.two-col{
		grid-template-columns: 1fr;
		max-width: 550px;
	}
	.two-col.wide{
		row-gap:2em;
	}
}

img.inline{
	margin: 0 auto;
	margin-top: var(--s1);
	max-width: 780px;
	width: 100%;
}

.source{
	margin: 0 auto;
	max-width: 780px;
	width: 100%;
}

img.inline.tight{
	max-width: 700px;
	margin: 2em auto;
	margin-bottom: 0;
}

img.inline.mobile{
	max-width: 500px;
	margin: 2em auto;
	margin-bottom: 0;
}

.tight{
	max-width: 700px;
	margin: 0 auto;
}

img.wide{
margin: 2.5em auto;
margin-bottom: 0.3em;
max-width: var(--page-max-width);
width: 100%;
}

.inset{
	max-width:500px; 
	float:right; 
	margin-right:8em; 
	padding-left:2em; 
	padding-bottom:2em
}

.inset > figcaption{
	padding-left:0.5em;
	font-size:1.2em;
}

@media (max-width:929px){
	.inset{
		max-width: 780px;
		float: none;
		padding-left: 0;
		padding-bottom: 2em;
		margin: auto;
	}
}

footer{
	margin-block-start: var(--s5);
}

@media (max-width:550px){
	nav.box{
		grid-template-columns: 1fr !important;
	}
}

footer a{
	color: #f4f4f4;
}