@import url('https://fonts.googleapis.com/css2?family=Nunito&display=swap');

:root {
	--primaryColor: #fff;
	--navColor1: #21292c;
	--navColor2: #aa3e39;
	--navColor3: #aa6e39;
	--navColor4: #236267;
	--navColor5: #2c8437;
}

html {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: #000;
	font-family: Nunito, sans-serif;
}

/* --- Navigation Menu ------------------------------ */

/* Overlay */

.overlay {
	position: fixed;
	z-index: 9;
	top: 0;
	left: 0;
	height: 100vh;
	width: 100vw;
	background-color: rgba(0, 0, 0, 0.7);
	transform: translateX(-100vw);
}

.overlay-slide-right {
	transition: all 0.4s ease-in-out;
	transform: translateX(0);
}

.overlay-slide-left {
	transition: all 0.8s ease-in-out;
	-o-transition-delay: 0.5s;
	transition-delay: 0.5s;
	transform: translateX(-100vw);
}

/* Nav Menu Items */

nav,
nav ul {
	height: 100vh;
	margin: 0;
	padding: 0;
}

nav ul {
	display: flex;
	flex-direction: column;
	justify-content: stretch;
	list-style: none;
}

nav ul li {
	height: 20%;
	overflow: hidden;
}

nav li a {
	position: relative;
	top: 45%;
	color: #fff;
	text-transform: uppercase;
	letter-spacing: 4px;
	text-decoration: none;
	display: block;
	text-align: center;
}

nav li a::before {
	content: '';
	width: 25vw;
	height: 3px;
	background-color: #fff;
	position: absolute;
	top: 47.5%;
	left: 0;
	opacity: 0;
}

nav li a:hover::before {
	opacity: 1;
}

nav li a:hover {
	transform: scale(1.2);
}

nav li:nth-of-type(1) {
	background-color: var(--navColor1);
}

nav li:nth-of-type(2) {
	background-color: var(--navColor2);
}

nav li:nth-of-type(3) {
	background-color: var(--navColor3);
}

nav li:nth-of-type(4) {
	background-color: var(--navColor4);
}

nav li:nth-of-type(5) {
	background-color: var(--navColor5);
}

/* Slide animations */
.slide-in-1 {
	animation: slide-in 0.4s linear 0.2s both;
}

.slide-in-2 {
	animation: slide-in 0.4s linear 0.4s both;
}

.slide-in-3 {
	animation: slide-in 0.4s linear 0.6s both;
}

.slide-in-4 {
	animation: slide-in 0.4s linear 0.8s both;
}

.slide-in-5 {
	animation: slide-in 0.4s linear 1s both;
}

@keyframes slide-in {
	from {
		transform: translateX(-100%);
	}
	to {
		transform: translateX(0);
	}
}

.slide-out-1 {
	animation: slide-out 0.3s linear 0.5s both;
}

.slide-out-2 {
	animation: slide-out 0.3s linear 0.4s both;
}

.slide-out-3 {
	animation: slide-out 0.3s linear 0.3s both;
}

.slide-out-4 {
	animation: slide-out 0.3s linear 0.2s both;
}

.slide-out-5 {
	animation: slide-out 0.3s linear 0.2s both;
}

@keyframes slide-out {
	from {
		transform: translateX(0);
	}
	to {
		transform: translateX(-100vw);
	}
}

/* --- Menu Bars ------------------------------------ */

.menu-bars {
	position: fixed;
	top: 1rem;
	right: 2rem;
	z-index: 10;
	display: inline;
	cursor: pointer;
}

.bar1,
.bar2,
.bar3 {
	width: 35px;
	height: 2px;
	background-color: #fff;
	margin: 8px 0;
	transition: 0.4s;
}

/* Rotate first bar */
.change .bar1 {
	transform: rotate(-45deg) translate(-7px, 8px);
}

/* Fade out the second bar */
.change .bar2 {
	opacity: 0;
}

/* Rotate last bar */
.change .bar3 {
	transform: rotate(45deg) translate(-6px, -8px);
}

/* --- Sections ------------------------------------ */

section {
	width: 100%;
	height: 100vh;
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	text-transform: uppercase;
	letter-spacing: 2px;
	color: var(--primaryColor);
}

section#home {
	background-image: url('https://images.unsplash.com/photo-1581453904507-626ddb717f14?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=2089&q=80');
	background-size: cover;
	background-position: center center;
}

section#home a {
	position: absolute;
	z-index: 2;
	top: 1.5rem;
	left: 1.5rem;
	text-decoration: none;
	font-size: 0.8rem;
	padding-bottom: 5px;
	color: var(--primaryColor);
	border-bottom: 1px solid var(--primaryColor);
}

section#about {
	background-color: var(--navColor2);
}

section#skills {
	background-color: var(--navColor3);
}

section#projects {
	background-color: var(--navColor4);
}

section#contact {
	background-color: var(--navColor5);
}

/* Media Query: Large Smartphone (Vertical) */
@media (max-width: 600px) {
	section#home a {
		top: 1rem;
		left: 1rem;
	}

	.menu-bars {
		top: 0.5rem;
		right: 1rem;
	}
}