html, body {
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}

p {
	line-height: 1.5rem;
}

/* layout */
.header {
	border-bottom: 1px solid var(--code-bg-color);
	grid-template-columns: 1fr 150px 60% 1fr;
}

.wrapper {
	display: flex;
	flex-grow: 1;
}

/* logo */
.logo {
	font-weight: 700;
	color: var(--primary-color);
	font-size: 1.4em;
	grid-column: 2;
}

.logo__thin {
	font-weight: 300;
}

/* menu */
.menu {
	grid-template-columns: 1fr 180px 60% 1fr;
}

/* doc */
.doc__bg {
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	width: 28%;
	background-color: var(--bg-color);
	z-index: -1;
}

.doc__nav {
	flex-basis: 20%;
	font-weight: 400;
}

.doc__nav ul {
	list-style: none;
	padding-left: 0;
	line-height: 1.8;
}

.doc__nav ul.fixed {
	position: fixed;
	top: 2rem;
}

.doc__nav li:hover {
	color: var(--primary-color-light);
	cursor: pointer;
	transition: color .3s ease-in-out;
}

.doc__nav .selected {
	color: var(--accent-color);
	position: relative;
}

.doc__nav .selected:after {
	position: absolute;
	content: "";
	width: 1rem;
	height: 1rem;
	background-color: var(--accent-color);
	left: -1.5rem;
	top: 0.3rem;
}

.doc__content {
	flex-basis: 80%;
	padding: 0 0 5rem 1rem;
}

@media (max-width: 750px) {
	.wrapper {
		flex-direction: column;
	}
	.doc__content {
		padding-left: 0;
	}
	.doc__nav ul {
		border-bottom: 1px solid var(--code-bg-color);
		padding-bottom: 0.5rem;
	}
	.doc__nav ul.fixed {
		/* nutralized the fixed menu for mobile*/
		position: relative;
		top: 0;
	}
	.doc__nav li {
		display: inline-block;
		padding-right: 1rem;
	}
	.doc__nav .selected:after {
		display: none;
	}
}