.single_article {
	font-family: Arial, Helvetica, sans-serif;
	color: black;
	margin-right: 230px;
}

.single_article .title {
	font-family: Arial, Helvetica, sans-serif;
	padding: 20px 10px 0px 40px;
	font-size: 35px;
	font-weight: bold;
	color: #000080;
}

.single_article h1,
.single_article h2,
.single_article h3,
.single_article h4,
.single_article h5,
.single_article h6 {
	color: #000080;
	border-bottom: none;
	margin-top: 0;
	margin-bottom: 5px;
	scroll-margin: 100px;
}

.single_article h1 {
	font-size: 35px;
	font-weight: normal;
}

.single_article h2 {
	font-size: 30px;
	font-weight: normal;
}

.single_article h3 {
	font-size: 26px;
	font-weight: normal;
}

.single_article h4 {
	font-size: 22px;
	font-weight: normal;
}

.single_article h5 {
	font-size: 20px;
	font-weight: normal;
}

.single_article h6 {
	font-size: 18px;
	font-weight: bold;
}


.single_article p {
	font-size: 18px;
	line-height: 1.7;
	margin-bottom: 10px;
}

.single_article a {
	text-decoration: underline;
}

.single_article .meta {
	font-size: 0.9rem;
	color: black;
	font-weight: normal;
	padding-left: 0px;
	border-bottom: 2px solid black;
}

.single_article .content {
	margin-left: 40px;
}

.single_article .content img {
	width: 300px;
	height: auto;
	object-fit: contain;
}

.single_article pre {
	background: #2d2d2d;
	color: #f8f8f2;
	padding: 1rem;
	border-radius: 6px;
	overflow-x: auto;
	font-family: "Fira Code", monospace;
	font-size: 0.9rem;
}

.single_article nav {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 35px;
	flex-wrap: wrap;
}

.single_article nav a {
	color: #000080;
	font-size: 1rem;
	transition: color 0.2s ease;
}

.single_article nav a:hover {
	color: red;
}

.single_article li {
	font-size: large;
}

.toc {
	position: fixed;
	top: 100px;
	right: 0px;
	width: 195px;
	max-height: 78vh;
	overflow-y: auto;
	font-size: small;
	padding: 1rem;
	border-top: 2px solid #ffffff;
	border-left: 2px solid #ffffff;
	border-bottom: 3px solid #000080;
	background: #c0c0c0;
	  
	box-shadow:
    2px 2px 0 #ffffff,
    4px 4px 0 #000080;
}

.toc::-webkit-scrollbar {
  width: 10px;
}

.toc::-webkit-scrollbar-track {
  background: #000080;
}

.toc::-webkit-scrollbar-thumb {
  background: #c0c0c0;
  border: 2px solid #000080;
}

.toc h3 {
	font-size: 1rem;
	text-align: center;
	margin-bottom: 0.5rem;
	margin-top: 0;
	color: #ffffff;
	background: #000080;
	border: 2px solid #ffffff;
}

.toc ul {
	list-style: none;
	padding-left: 0px;
	margin-left: 0px;
}

.toc li {
	margin: 0.3rem 0px;
}

.toc ul ul {
	margin-left: 0rem;
}

.toc ul ul ul {
	margin-left: 1rem;
}

.toc ul ul ul ul {
	margin-left: 1rem;
}

.toc a {
	text-decoration: none;
	color: #000080;
	transition: color 0.2s ease;
}

.toc a:hover {
	color: red;
}

.toc a.active {
	color: red;
	border-left: 3px solid red;
	padding-left: 5px;
}