body {
	margin: 0;
	font-family: sans-serif;
	background-color: #fff;
	display: flex;
	justify-content: center;
}
nav {
	background-color: #2B2C31;
	color: #C6C8CD;
	height: 100vh;
	width: 300px;
	overflow-y: scroll;
	padding-top: 20px;
	box-sizing: border-box;
}
ul {
	margin: 0;
	padding: 0;
	list-style: none;
}
li {
	position: relative;
}
nav > ul > li:first-child {
	margin-bottom: 20px;
} 
nav > ul > li:first-child a:after {
	content: "";
	position: absolute;
	width: 100%;
	background-color: #36373e;
	height: 1px;
	bottom: -10px;
	left: 0;
}
li a {
	display: block;
	color: #C6C8CD;
	text-decoration: none;
	height: 50px;
	display: flex;
	align-items: center;
	padding-left: 55px;
}
li a:hover {
	background-color: #35373B;
}
li ul {
	display: none;
	transform: scaleY(0);
	transition: transform 0.3s;
	transform-origin: top;
}
a:active ~ ul, a:focus ~ ul {
	display: block;
	transform: initial;
}
li ul li {
	background-color: #232529;
}

/* Selected line */
nav > ul > li:first-child a:before {
	content: "";
	position: absolute;
	width: 5px;
	border-radius: 5px;
	background-color: #18D17B;
	height: 80%;
	top: 10%;
	left: -2px;
}
nav > ul > li:first-child a {
	color: #18D17B;
}

/* Icons */
nav > ul > li:first-child:before {
	content: "";
	position: absolute;
	height: 10px;
	width: 17px;
	background-color: #18D17B;
	bottom: 15px;
	left: 19px;
}
nav > ul > li:first-child:after {
	content: "";
	position: absolute;
	height: 0;
	width: 0;
	border: 12px solid transparent;
	border-bottom-color: #18D17B;
	left: 16px;
	bottom: 25px;
}

nav > ul > li:nth-child(2):before {
	content: "?";
	position: absolute;
	height: 23px;
	width: 23px;
	border-radius: 50%;
	background-color: #C6C8CD;
	color: #36373e;
	top: 13px;
    left: 18px;
	display: flex;
	justify-content: center;
	align-items: center;
}

nav > ul > li:nth-child(3):before {
	content: "";
	position: absolute;
	height: 8px;
	width: 8px;
	border-radius: 50%;
	background-color: #C6C8CD;
	top: 13px;
    left: 24px;
}
nav > ul > li:nth-child(3):after {
	content: "";
	position: absolute;
	height: 10px;
	width: 16px;
	border-radius: 50% 50% 0 0;
	background-color: #C6C8CD;
	top: 23px;
    left: 20px;
}

nav > ul > li:nth-child(4):before {
	content: "";
	position: absolute;
    transition: all 0.2s;
    height: 4px;
    width: 4px;
    border: 8px solid currentColor;
    border-radius: 100%;
    top: 13px;
    left: 18px;
}
nav > ul > li:nth-child(4):after {
	content: '';
    position: absolute;
    height: 4px;
    width: 4px;
    background-color: currentColor;
    border-radius: 50%;
    top: 11px;
    left: 26px;
    box-shadow:
    	7px 3px,
    	10px 10px,
    	7px 17px,
    	0 20px,
    	-7px 17px,
    	-10px 10px,
    	-7px 3px;
}

nav > ul > li:nth-child(5):before {
	content: "@";
	position: absolute;
	height: 23px;
	width: 23px;
	border-radius: 50%;
	background-color: #C6C8CD;
	color: #36373e;
	top: 13px;
    left: 18px;
	display: flex;
	justify-content: center;
	align-items: center;
}