@import url("https://fonts.googleapis.com/css2?family=Ubuntu:ital,wght@0,300;0,400;0,700;1,300;1,400&display=swap");

* {
	margin: 0;
	padding: 0;
	font-family: "Ubuntu", sans-serif;
}

body {
	background: linear-gradient(0deg, rgb(0, 36, 57), rgba(0, 36, 57, 0.35)),
		url("files/background-img.jpg");
	background-position: center 0px;
	background-repeat: no-repeat;
	background-attachment: fixed;
	background-size: cover;
}

main {
	display: flex;
	justify-content: center;
	align-items: center;
	padding-top: 10%;
	width: 60vw;
}

.big-h {
	text-align: center;
	color: rgb(255, 255, 115);
	font-weight: normal;
}

.s-year {
	color: gold;
}

.background-video {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	z-index: -1;
	filter: brightness(35%);
}

.main-title {
	color: white;
	font-size: 50px;
	font-weight: 700;
	padding-left: 10%;
	padding-right: 10%;
	text-align: center;
}

p.lead {
	color: white;
	text-align: center;
	font-size: 18px;
	font-weight: 400;
	padding-left: 10%;
	padding-right: 10%;
}

.exib {
	display: flex;
	justify-content: center;
	align-items: center;
}

.exib > a {
	display: flex;
	justify-content: center;
	align-items: center;
	text-decoration: none;
	color: white;
	font-size: 20px;
	font-weight: 500;
	border-radius: 500px;
	background-color: rgb(15, 153, 188);
	border: none;
	width: 200px;
	height: 80px;
	position: absolute;
	animation: animate 2.5s linear infinite;
}

.exib > a:hover {
	color: white;
}

footer {
	padding: 5px;
	position: fixed;
	left: 0;
	bottom: 0;
	width: 100%;
	background-color: rgb(255, 255, 255);
	color: rgb(93, 93, 93);
	text-align: center;
}

footer > a {
	text-decoration: none;
	color: rgb(15, 153, 188);
	font-weight: bold;
}

footer > a:hover {
	color: rgb(13, 114, 139);
}
footer > a:visited {
	color: rgb(15, 153, 188);
}

@keyframes animate {
	0% {
		box-shadow: 0 0 0 0 rgb(141, 205, 242), 0 0 0 0 rgba(36, 132, 156, 0.816);
	}
	40% {
		box-shadow: 0 0 0 30px rgba(255, 109, 74, 0),
			0 0 0 0 rgba(60, 190, 230, 0.7);
	}
	80% {
		box-shadow: 0 0 0 50px rgba(255, 109, 74, 0),
			0 0 0 30px rgba(255, 109, 74, 0);
	}
	100% {
		box-shadow: 0 0 0 0 rgba(255, 109, 74, 0), 0 0 0 30px rgba(255, 109, 74, 0);
	}
}

@media screen and (max-width: 600px) {
	.main-title {
		font-size: 30px;
		font-weight: 500;
		text-align: center;
	}
}