* {
  box-sizing: border-box;
}

body {
  font-family: "Lucida Sans", sans-serif;
  font-size: 17px;
  background-image: url("images/naturbild.jpg");
  background-attachment: fixed;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;

}

.grid-container {
  display: grid;
  grid-template-areas:
    'header'
    'nav'
    'content'
	'content-2'
    'facts'
    'footer';
  background-color: white;
  gap: 10px;  
  background-image: url("images/naturbild.jpg");
  background-attachment: fixed;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
}

.header {
  grid-area: header;
  background-color:RGBA(58, 58, 58, 0.90);
  box-shadow: 0 6px 14px rgba(0,0,0,0.9);
  text-align: center;
  color: #ffffff;
  border-radius: 20px;
}

.header > h1 {
  font-size: 40px;
}

nav {
  float: left;
  text-align: center;
}

nav a {
  background-color: rgb(93, 93, 93);
  padding: 8px;
  margin-top: 7px;
  display: block;
  width: 100%;
  color: navy;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

nav a:last-of-type{
	color: purple;
	text-decoration: underline;
}
  
.content {
  grid-area: content;
  width: 470px;
  height: 750px;
  background-color: RGBA(211, 211, 211, 0.9);
  border: 2px solid #333;
  border-radius: 10px;
  text-align: center;
  padding-top: 50px;
  font-size: 20px;
}

.bild_2 {
	width:175px;
	height:200px;
	box-shadow: 0 4px 12px rgba(0,0,0,0.7);
}

li {
	padding-top: 50px
}

.content-2 {
  grid-area: content;
  width: 470px;
  height: 750px;
  background-color: RGBA(211, 211, 211, 0.9);
  border: 2px solid #333;
  border-radius: 10px;
  text-align: center;
  padding-top: 50px;
  font-size: 20px;
}

.bild_1 {
	width:175px;
	height:200px;
	box-shadow: 0 4px 12px rgba(0,0,0,0.7);
}

.content-3 {
  grid-area: content;
  width: 470px;
  height: 750px;
  background-color: RGBA(211, 211, 211, 0.9);
  border: 2px solid #333;
  border-radius: 10px;
  text-align: center;
  padding-top: 50px;
  font-size: 20px;
}

.bild_3 {
	width:175px;
	height:200px;
	box-shadow: 0 4px 12px rgba(0,0,0,0.7);
}

.footer {
  grid-area: footer;
  background-color:RGB(0, 0, 0);
  box-shadow: 0 6px 14px rgba(0,0,0,0.7);
  color: yellow;
  text-align: center;
  font-weight: bold;
  border-radius: 20px;
}

@media (max-width: 600px) {
  .header {grid-area: 1 / span 6;}
  nav {grid-area: 2 / span 6;}
  .content {grid-area: 3 / span 6;}
  .content-2 {grid-area: 4 / span 6;}
  .content-3 {grid-area: 5 / span 6;}
  .footer {grid-area: 6 / span 6;}
}

@media (min-width: 601px) {
  .header {grid-area: 1 / span 6;}
  nav {grid-area: 2 / span 6;}
  .content {grid-area: 3 / span 6;}
  .content-2 {grid-area: 4 / span 6;}
  .content-3 {grid-area: 5 / span 6;}
  .footer {grid-area: 6 / span 6;}
}

@media (min-width: 768px) {
  .header {grid-area: 1 / span 6;}
  nav {grid-area: 2 / span 2;}
  .content {grid-area: 2 / span 4;}
  .content-2 {grid-area: 3 / span 3;}
  .content-3 {grid-area: 3 / span 3;}
  .footer {grid-area: 4 / span 6;}
}

@media (min-width: 1402px) {
  .header {grid-area: 1 / span 6;}
  nav {grid-area: 2 / span 1;}
  .content {grid-area: 2 / span 2;}
  .content-2 {grid-area: 2 / span 2;}
  .content-3{grid-area: 2 / span 1;}
  .footer {grid-area: 3 / span 6;}
}