style.css

@import url('https://fonts.googleapis.com/css2?family=Pixelify+Sans:wght@400;500;600;700&family=Roboto:wght@400;500;700;900&display=swap');

* {
	box-sizing: border-box;
	cursor: none;
	font-family: 'Pixelify Sans', sans-serif;
	margin: 0;
	padding: 0;
	scroll-behavior: smooth;
}

body {
	overflow: hidden;
}

.page {
	background-image: linear-gradient(to right, #202030 1px, transparent 1px),
		linear-gradient(to bottom, #202030 1px, transparent 1px);
	background-color: #252839;
	background-size: 25px 25px;
	color: #fff2;
	height: 100%;
	left: 0;
	position: absolute;
	top: 0;
	width: 100%;
}

.border-colors {
	--borderWidth: 3px;
	animation: animatedBorderColor 3s ease alternate infinite;
	border: var(--borderWidth) solid;
	position: absolute;
}

@keyframes animatedBorderColor {
	0% {
		border-color: #ff86dd;
	}
	15% {
		border-color: #fc6868;
	}
	25% {
		border-color: #ff861c;
	}
	50% {
		border-color: #ffdd1c;
	}
	75% {
		border-color: #86ff86;
	}
	100% {
		border-color: #1c86ff;
	}
}

#cursor {
	border-left: 5px solid #0f0;
	border-top: 5px solid #0f0;
	filter: drop-shadow(0 0 5px #0f0) drop-shadow(0 0 15px #0f0) drop-shadow(0 0 35px #0f0) hue-rotate(60deg);
	height: 25px;
	pointer-events: none;
	position: relative;
	transform-origin: top;
	transform: rotate(15deg) scale(0);
	transition: transform 0.1s;
	width: 25px;
	z-index: 1000;
}

#cursor::before {
	background: #0f0;
	content: '';
	height: 40px;
	left: -2.5px;
	position: fixed;
	transform-origin: top;
	transform: rotate(315deg);
	width: 5px;
}

body:hover #cursor {
	transform: translate(-1px, 5px) rotate(15deg) scale(1);
}

.binary {
	color: #0f0;
	filter: drop-shadow(0 0 5px #0f0) drop-shadow(0 0 15px #0f0) drop-shadow(0 0 35px #0f0) hue-rotate(60deg);
	font-size: 2em;
	height: 10px;
	pointer-events: none;
	position: fixed;
	transform: translate(-50%, -50%);
	transition: 1s;
	width: 10px;
	z-index: 1000;
}

.back a {
	color: var(--clr);
	font-size: 1.5em;
	letter-spacing: 0.1em;
	padding: 15px 15px;
	position: relative;
	text-decoration: none;
	text-shadow: 0 0 15px var(--clr);
	text-transform: uppercase;
	transition: 0.5s;
}

.back a:hover {
	border: 6px solid rgba(0, 0, 0, 0);
	color: var(--clr);
	text-shadow: 0 0 0px var(--clr);
}

.back a span {
	background: var(--clr);
	box-shadow: 0 0 10px var(--clr), 0 0 20px var(--clr), 0 0 30px var(--clr), 0 0 50px var(--clr), 0 0 100px var(--clr);
	pointer-events: none;
	position: absolute;
}

.back a span:nth-child(1),
.back a span:nth-child(3) {
	height: 5px;
	width: 30px;
}

.back a span:nth-child(2),
.back a span:nth-child(4) {
	height: 30px;
	width: 5px;
}

.back a span:nth-child(1) {
	left: -30px;
	top: calc(50% - 2px);
	transform-origin: left;
	transition-delay: 0.25;
	transition: 0.5s ease-in-out;
}

.back a:hover span:nth-child(1) {
	left: 50%;
	opacity: 0;
	transform: scaleX(0);
	transition-delay: 0s;
}

.back a span:nth-child(3) {
	right: -30px;
	top: calc(50% - 2px);
	transform-origin: right;
	transition-delay: 0.25;
	transition: 0.5s ease-in-out;
}

.back a:hover span:nth-child(3) {
	opacity: 0;
	right: 50%;
	transform: scaleX(0);
	transition-delay: 0s;
}

.back a span:nth-child(2) {
	left: calc(50% - 2px);
	top: -30px;
	transform-origin: top;
	transition-delay: 0.25;
	transition: 0.5s ease-in-out;
}

.back a:hover span:nth-child(2) {
	opacity: 0;
	top: 50%;
	transform: scaleY(0);
	transition-delay: 0s;
}

.back a span:nth-child(4) {
	bottom: -30px;
	left: calc(50% - 2px);
	transform-origin: bottom;
	transition-delay: 0.25;
	transition: 0.5s ease-in-out;
}

.back a:hover span:nth-child(4) {
	bottom: 50%;
	opacity: 0;
	transform: scaleX(0);
	transition-delay: 0s;
}

.title {
	font-size: 3em;
	font-weight: 400;
	letter-spacing: 0.15em;
	position: relative;
	text-transform: capitalize;
}

.title::before {
	animation: animateTitle 8s linear infinite;
	border-right: 6px solid var(--clr);
	color: var(--clr);
	content: attr(data-text);
	filter: drop-shadow(0 0 20px var(--clr));
	overflow: hidden;
	position: absolute;
	white-space: nowrap;
	width: 330px;
}

@keyframes animateTitle {
	0%,
	10%,
	100% {
		width: 0;
	}
	70%,
	90% {
		width: 100%;
	}
}

.practs-labs {
	align-items: center;
	display: flex;
	flex-wrap: wrap;
	gap: 50px;
	justify-content: center;
	position: relative;
}

.practs-labs .card {
	align-items: center;
	background: rgba(32, 32, 48, 1);
	border-radius: 20px;
	color: var(--clr);
	display: flex;
	font-size: 4em;
	height: 200px;
	justify-content: center;
	overflow: hidden;
	position: relative;
	text-decoration: none;
	width: 200px;
	z-index: 999;
}

.practs-labs .card::before {
	background: radial-gradient(var(--clr), transparent, transparent);
	content: '';
	height: 700px;
	left: var(--x);
	opacity: 0;
	position: absolute;
	top: var(--y);
	transform: translate(-50%, -50%);
	transition: 0.5s, top 0s, left 0s;
	width: 700px;
}

.practs-labs .card:hover::before {
	opacity: 1;
}

.practs-labs .card::after {
	background: rgba(32, 32, 48, 0.25);
	border-radius: 18px;
	content: '';
	inset: 2px;
	position: absolute;
}

#home {
	align-items: center;
	display: flex;
	flex-direction: column;
	justify-content: space-around;
}

.welcome {
	font-size: 4em;
	font-weight: 400;
	letter-spacing: 0.15em;
	position: relative;
	text-transform: capitalize;
}

.welcome::before {
	animation: animateWelcome 8s linear infinite;
	border-right: 6px solid var(--clr);
	color: var(--clr);
	content: attr(data-text);
	filter: drop-shadow(0 0 20px var(--clr));
	overflow: hidden;
	position: absolute;
	white-space: nowrap;
	width: 350px;
}

@keyframes animateWelcome {
	0%,
	10%,
	100% {
		width: 0;
	}
	70%,
	90% {
		width: 100%;
	}
}

.navigation {
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	gap: 80px;
	justify-content: center;
	position: relative;
	transition: 1s;
}

.navigation li {
	list-style: none;
	position: relative;
}

.navigation li a {
	color: #fff2;
	font-size: 3em;
	letter-spacing: 0.15em;
	line-height: 1em;
	position: relative;
	text-decoration: none;
	text-transform: capitalize;
}

.navigation li a::before {
	border-right: 6px solid var(--clr);
	color: var(--clr);
	content: attr(data-text);
	overflow: hidden;
	position: absolute;
	transition: 1s;
	width: 0;
}

.navigation:hover li a span {
	animation-play-state: paused;
	opacity: 0.5;
}

.navigation li a:hover::before {
	filter: drop-shadow(0 0 25px var(--clr));
	width: 100%;
}

.navigation li a span {
	animation: animateNavigation 1s linear infinite;
	position: relative;
}

@keyframes animateNavigation {
	0%,
	20% {
		color: #fff2;
		filter: drop-shadow(0 0 0 var(--clr));
	}

	20%,
	80% {
		color: var(--clr);
		filter: drop-shadow(0 0 15px var(--clr));
	}

	80%,
	100% {
		color: #fff2;
		filter: drop-shadow(0 0 0 var(--clr));
	}
}

#labs {
	align-content: flex-start;
	align-items: center;
	display: flex;
	flex-direction: column;
	justify-content: space-around;
	top: 200%;
}

#practs {
	align-content: flex-start;
	align-items: center;
	display: flex;
	flex-direction: column;
	justify-content: space-around;
	top: 100%;
}

#about {
	align-content: flex-start;
	align-items: center;
	display: flex;
	flex-direction: column;
	justify-content: space-around;
	top: 300%;
}

.box {
	animation: animate 4s linear infinite;
	background: repeating-conic-gradient(
		from var(--a),
		#fff2 0%,
		#fff2 5%,
		transparent 10%,
		transparent 40%,
		#fff2 50%
	);
	border-radius: 20px;
	height: 300px;
	position: relative;
	width: 1000px;
}

@property --a {
	inherits: false;
	initial-value: 0deg;
	syntax: '<angle>';
}

@keyframes animate {
	0% {
		--a: 0deg;
	}
	100% {
		--a: 360deg;
	}
}

.box::before {
	animation-delay: -1s;
	animation: animate 4s linear infinite;
	background: repeating-conic-gradient(
		from var(--a),
		#86ff86 0%,
		#86ff86 5%,
		transparent 10%,
		transparent 40%,
		#86ff86 50%
	);
	border-radius: 20px;
	content: '';
	height: 100%;
	position: absolute;
	width: 100%;
}

.box::after {
	background-color: #252839;
	border-radius: 20px;
	content: '';
	inset: 8px;
	position: absolute;
}

.box p {
	font-size: 2em;
	padding: 15px;
	position: relative;
	text-align: center;
	z-index: 1000;
}