:root {
	--white: #fff;
	--black: ##10131c;
	--blue: #3471eb;
	--blueLight: #70c1ff;
	--cyan: #70f8ff;
  }

@font-face {
	font-family: 'NothingYouCouldDo';
	src: url('NothingYouCouldDo.ttf') format('truetype');
}
  
  body,
  html {
	padding: 0;
	margin: 0;
  }
  
  body {
	background-color: var(--white);
	background-image:url("img/smallsnow.gif");
	font-family:Arial, Helvetica, sans-serif;
	color: var(--black);
	display: flex;
	flex-direction: column;
  }
  
  * {
	box-sizing: border-box;
  }

::selection {
	background-color: var(--cyan);
}
  
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
	color: var(--blue);
	font-family: NothingYouCouldDo, sans-serif;
  }
  
  img {
	max-width: 100%;
	height: auto;
  }
  
  header {
	background-image: url("img/snow.png");
	background-size: cover;
	background-position: center;
	padding: 4rem 1rem;
	border-bottom: 3px solid var(--blue);
  }

  header a {
	text-decoration: none;
  }
  
  header h1 {
	text-align: center;
	font-size: 4rem;
	margin: 0;
	text-shadow: 0 0 10px var(--cyan), 0 0 5px var(--blueLight);
  }
  
  nav {
	border-bottom: 3px solid var(--blue);
	text-align: center;
	font-family: NothingYouCouldDo, sans-serif;
	font-size:1.2rem;
  }
  
  nav ul {
	list-style-type: none;
	margin: 0;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: center;
  }
  
  nav ul li {
	flex: 1 1 0;
	border-right: 2px solid var(--blue);
  }
  
  nav ul li:last-of-type {
	border-right: 0;
  }
  
  nav ul li a {
	display: inline-block;
	width: 100%;
	padding: 1.5rem 1rem;
	text-decoration: none;
	background-color: var(--blueLight);
	color: var(--black);
	transition: 0.5s;
  }
  
  nav ul li a:hover,
  nav ul li a:focus {
	background-color: var(--cyan);
  }
  
  main {
	align-self: center;
	max-width: 95rem;
	margin: 3rem;
	padding: 2rem;
	border: 5px double var(--blue);
	box-shadow: 0 0 10px var(--cyan), 0 0 5px var(--blueLight);
	background-color: var(--white);
	line-height: 1.3;
  }
  
  main p.center {
	text-align: center;
  }
  
  main a {
	color: var(--blue);
	text-decoration: underline dotted var(--blue);
	transition: 0.5s;
  }
  
  main a:hover,
  main a:focus {
	text-shadow: 0 0 10px var(--cyan), 0 0 5px var(--cyan);
  }
  
  main hr {
	height: 0;
	border: 0;
	border-top: 4px double var(--blueLight);
	width: 80%;
	margin: 2rem auto;
  }
  
  main ul,
  main ol {
	li::marker {
	  color: var(--blue);
	}
  }
  
  @media only screen and (max-width: 1150px) {
	header {
	  padding: 3rem 1rem;
	}
	
	header h1 {
	  font-size: 3rem;
	}
	
	nav ul li a {
	  padding: 1rem;
	}
  
	main {
	  margin: 2rem;
	}
  }
  
  @media only screen and (max-width: 800px) {
	header h1 {
	  font-size: 2.5rem;
	}
	
	header,
	nav {
	  border-bottom-width: 2px;
	}
	
	nav ul {
	  flex-wrap: wrap;
	}
	
	nav ul li {
	  flex-shrink: 0;
	  white-space: nowrap;
	  border: 1px solid var(--blue);
	}
	
	nav ul li:last-of-type {
	  border-right: 1px solid var(--blue);
	}
   
	main {
	  margin: 2rem 1rem;
	  padding: 1rem;
	}
  }
  
  @media only screen and (max-width: 600px) {
	main {
	  border: 0;
	  box-shadow: none;
	  margin: 0;
	}
  }