/* BASE VARIABLES */
:root {
	--color-main: #0C5F43;
	--color-dark: #04383F;
	--color-accent: #61C2A2;
	--color-text: #000;
}

/* BASE STYLES */
* {
	margin: 0px;
	padding: 0px;
	box-sizing: border-box;
}
html, body {
	width: 100%;
	min-height: 100vh;
}
h1, h2, h3, h4, h5, h6 {
	font-weight: 400;
}
b {
	font-weight: 700;
}
a {
	color: var(--color-text);
}
img {
	display: block;
	width: 100%;
}
.flexbox {
	display: flex;
}
.flexbox-wrap {
	display: flex;
	flex-wrap: wrap;
}
.flexbox-center {
	display: flex;
	justify-content: center;
}
.flexbox-between {
	display: flex;
	justify-content: space-between;
}
.w-100 {
	flex: 1 0 100%;
}
body {
	font-family: "Albert Sans", sans-serif;
	font-size: 16px;
	color: var(--color-text);
	line-height: 1.5;
	padding: 75px 0 42px 0;
}

/* FRAMEWORK GENERAL STRUCTURE */
header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	background-color: var(--color-main);
	border-bottom: 2px solid var(--color-accent);
}
header article, footer article {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1em 2em;
	margin: 0 auto;
}
header a {
	flex-shrink: 0;
	margin-left: 2em;
}
section {
	margin: 0 auto;
	max-width: 1500px;
	padding: 2em;
	display: flex;
	align-content: flex-start;
	justify-content: flex-start;
	flex-wrap: wrap;
}
article {
	max-width: 1500px;
}
article.left {
	flex: 1 1 65%;
	margin-right: 2em;
	padding-right: 2em;
	border-right: 1px solid var(--color-accent);
}
article.right {
	flex: 1 1 calc(35% - 2em);
	max-width: 500px;
}
article.right iframe {
	width: 100%;
	height: auto;
	aspect-ratio: 16 / 9;
}
footer {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	background-color: var(--color-main);
	font-size: 0.75em;
	color: #FFF;
}

/* TYPOGRAPHY */
header .title {
	font-size: 1.25em;
	font-weight: 700;
	letter-spacing: 0.15em;
	text-transform: uppercase;
	color: #FFF;
}
header a {
	display: block;
	padding: 0.5em 1em;
	background-color: #FFF;
	border: 1px solid var(--color-accent);
	color: var(--color-dark);
	font-weight: 900;
	text-decoration: none;
}
header a i {
	margin-right: 0.25em;
}
header a:hover {
	background-color: var(--color-dark);
	color: #FFF;
}
h1 {
	font-size: 3em;
	line-height: 1.1;
	font-weight: 400;
	letter-spacing: -0.05em;
	margin-bottom: 0.5em;
	color: var(--color-dark);
}
.message h1 {
	font-size: 2.5em;
}
h2 {
	font-size: 1.5em;
	margin-bottom: 0.5em;
	line-height: 1.3;
}
p {
	font-size: 1em;
	margin-bottom: 1em;
}
.logos-bar {
	display: flex;
	justify-content: flex-start;
	align-items: center;
}
.logos-bar .small {
	flex: 1 1 140px;
	max-width: 140px;
	background-color: #FFF;
	border-radius: 100%;
	box-shadow: 0px 2px 4px rgba(0,0,0,0.5);
}
.logos-bar .big {
	flex: 1 1 220px;
	max-width: 220px;
	drop-shadow: 0px 2px 4px rgba(0,0,0,0.5);
}
.logos-bar .math {
	font-size: 3em;
	font-weight: 700;
	padding: 0 0.5em;
	color: var(--color-accent);
}
.button-big {
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 1;
	border-radius: 100%;
	padding: 1em;
	margin: 0 0 1em 2em; 
	float: right;
	border: 2px solid var(--color-accent);
	background-color: var(--color-dark);
	color: #FFF;
	font-size: 1.35em;
	font-weight: 900;
	text-decoration: none;
}
.button-big:hover {
	border-color: var(--color-dark);
	background-color: var(--color-accent);
}
.button-big i {
	margin-bottom: 0.25em;
}
.button-big div {
	text-align: center;
	line-height: 1.25;
}