@import url('https://fonts.googleapis.com/css2?family=Merriweather+Sans:ital,wght@0,300;0,400;0,600;0,700;0,800;1,400&display=swap');

body {
	font-family: "Merriweather Sans", Tahoma, "Trebuchet MS", Verdana, sans-serif;
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}
.header-bg {
	/* background: linear-gradient(180deg, rgba(40,126,185,1) 0%, rgba(0,179,255,1) 100%); */
	background: linear-gradient(180deg, rgba(18,153,210,1) 0%, rgba(0,179,255,1) 100%);
}
.hero-bg {
	background: linear-gradient(135deg, rgba(0,179,255,0.1) 0%, rgba(255,255,255,1) 100%);
}
.footer {
	background: linear-gradient(0deg, rgba(18,153,210,1) 0%, rgba(0,179,255,1) 100%);
	padding-top: 3rem;
	padding-bottom: 3rem;
	color: #ffffff;
	margin-top: auto;
}
.nav-link {
	color: #ffffff;
}
.nav-link:hover {
	color: #000000;
	/* font-weight: 800; */
}
.nav-link.active {
	color: #ffffff;
	border-bottom: 2px solid #ffffff;
}
.icon{
	filter: invert(52%) sepia(45%) saturate(2217%) hue-rotate(164deg) brightness(100%) contrast(102%); /* https://codepen.io/sosuke/pen/Pjoqqp  */
	width: 35px;
	height: 35px;
	padding-right: 10px;
}
.icon_small{
	filter: invert(52%) sepia(45%) saturate(2217%) hue-rotate(164deg) brightness(100%) contrast(102%); /* https://codepen.io/sosuke/pen/Pjoqqp  */
	width: 26px;
	height: 26px;
	padding-left: 0px;
}
.icon_white{
	filter: invert(93%) sepia(100%) saturate(0%) hue-rotate(278deg) brightness(108%) contrast(101%); /* https://codepen.io/sosuke/pen/Pjoqqp  */
	width: 35px;
	height: 35px;
	padding-right: 10px;
}
.at-mark{
	/* the tailwind CSS text color for text-gray-600 is #4B5563 which converts to this filter: */
	filter: invert(32%) sepia(11%) saturate(797%) hue-rotate(176deg) brightness(92%) contrast(85%);
	width: 18px;
	height: 18px;
}
#article-content h2 {
	font-size: 1.6rem;
	font-weight: 700;
	color: #1a1a1a;
	margin-top: 2rem;
	margin-bottom: 0.5rem;
}
#article-content h3 {
	font-size: 1.2rem;
	font-weight: 600;
	color: #374151;
	margin-top: 1.5rem;
	margin-bottom: 0.5rem;
	font-style: italic;
}

#article-content h4::before {
  content: "◆ ";
}
#article-content h4 {
	font-size: 1.1rem;
	font-weight: 650;
	padding-top: 5px;
	padding-bottom: 1px;
	margin-top: 8px;
}

.latex, .latex sub, .latex sup {
	text-transform: uppercase;
	font-family: serif; 
	letter-spacing: 0.1em;
}

.latex sub {
	vertical-align: -0.01ex;
	margin-left: -0.1667em;
	margin-right: -0.125em;	
	font-size: 0.85em;
}

.latex sup {
	font-size: 0.85em;
	vertical-align: -0.15em;
	margin-left: -0.36em;
	margin-right: -0.05em;
}

.quote {
	background: rgba(0,179,255,0.1);
	padding-top: 5px;
	padding-bottom: 5px;
	margin-top: 10px;
	margin-bottom: 10px;
	margin-left: 20px;
	margin-right: 20px;
	text-align: center;
}

dl {
	overflow: hidden;
}

dl dt {
	float: left;
	width: 12%;
}

dl dd {
	float: left;
	width: 88%;
	display: block;
	padding-left: 5px;
	text-indent: -1px;
}

dl dm {
	display: block;
	clear: both;
	font-style: italic;
	padding-top: 10px;
	padding-bottom: 5px;
}
dl ds {
	display: block;
	clear: both;
	font-size: 1.1rem;
	font-weight: bold;
	padding-top: 19px;
	padding-bottom: 1px;
}

#timeline {
  width: 100%;
  height: 2200px;
}