header {
	background-image: url("../images/pozadi.png");
	background-size: cover;
	background-position: center;
}

/* nadpisy */


header .container .nadpis h1 {
	font-size: 14vw;
	padding-top: 20px;
	font-weight: bolder;
	text-shadow: 3px 3px 10px #0077ff2b;
}

header .container .nadpis h2 {
	font-size: 6vw;
}

header .container .nadpis h3 {
	padding-top: 30px;
	font-size: 6vw;


}

/* navigační tlačítka */

header .container nav {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 15px;
	padding-top: 2em;
	padding-bottom: 2em;
}

header .container nav a {
	text-decoration: none;
	color: rgba(128, 128, 128, 0.774);
	box-sizing: border-box;
	width: 150px;
	padding-top: 1em;
	padding-bottom: 1em;
	border: 1px solid rgba(128, 128, 128, 0.774);
	border-radius: 10px;
	font-weight: bold;
	transition: all 0.2s ease;
}

header .container nav a:hover {
	color: black;
	background-color: #17ae926b;
	border: 1px solid black;
	transform: scale(125%);
	font-weight: bolder;
}

/* optimalizace */

@media (min-width: 1000px) {


	header .container .nadpis h1 {
		padding-top: 60px;
		font-size: 100px;
	}

	header .container .nadpis h2 {
		font-size: 4vw;
		padding-bottom: 40px;

	}

	header .container .nadpis h3 {
		font-size: 3vw;
		padding-top: 3vw;
	}

}

@media (min-width: 500px) {
	header .container .nadpis h1 {
		padding-top: 50px;
	}

	header .container .nadpis h2 {
		padding-bottom: 40px;
	}

	header .container nav {
		display: flex;
		justify-content: center;
		flex-direction: row;
		gap: 30px;
		padding-top: 2em;
		padding-bottom: 2em;

	}

	header .container nav a {
		width: 170px;
		padding-top: 1em;
		padding-bottom: 1em;

	}

}