/*Style sheet*/

/*Standard issue CSS Reset */
body, header, nav, main, footer, h1, div, article, h2 {
    margin: 0;
    padding: 0;
    border: 0;
}

/* Style rules for body */
body {
    background-image: url('../images/spaceBackground.jpg');
}

/* Style rule for header */
header {
    font-family: "Times New Roman", Times, serif;
    text-align: center;
    font-size: 2.0em;
    margin-top: 0.2em;
    color: white;
    padding: 2%;
}

/* Style rules for nav area */
nav {
	text-align: center;
	position: -webkit-sticky;
	position: sticky;
	top: 0;
    opacity: 0.5;
    padding: 0.5%;
}

nav ul {
	list-style-type: none;
	padding: 0;
	margin: 0;
	overflow: hidden;
	background-color: #111111;}

nav li {
    display: inline-block;
	color: white;
	padding: 2px;
	text-decoration: none;}

nav ul li a {
	display: block;
	color: white;
	text-align: center;
	padding: 14px 16px;
	text-decoration: none;
}

nav li a:hover {	
	color: lime;
}

/*Style rules for Main area*/
main {
	font-family: "Times New Roman", Times, serif;
    text-align: center;
    font-size: 1.25em;
    text-shadow: 2px 2px black;
	color: white;
	padding: 5%;
}

img {
  display: inline-block;
  margin: auto;
}

.sector {
    border: 4px double #531;
    margin: 2%;
    padding: 2%;
	border-radius: 8px;
	background-color: black;
}

.sector a {
	display: block;
	color: orange;
	text-align: center;
	padding: 14px 16px;
	text-decoration: none;
}

.sector a:hover {	
	color: lime;
}

.mail {
	display: none;	
}

.phone {
	display: block;
}

.minor {
	font-size: 0.75em;
}


/* Style for the footer element */
footer {
    font-size: .80em;
    text-align: center;
    color: white;
}

/* Media Query for Desktop Viewport */
@media screen and (min-width: 769px) {
 
    /* Desktop Viewport: Style rules for the main content */
    main {
        margin-bottom: 1%;
        overflow: auto;
        display: grid;
        grid-template-columns: auto auto auto;
        grid-gap: 50px;
    }
    
    div {
		margin: auto;
		display: inline-block;
		padding: 4px, 6px, 4px, 6px;
	}
	.row:after {
	  content: "";
	  display: table;
	  clear: both;
	}
	
	.mail {
		display: block;
	}

	.phone {
		display: none;
	}
}

/* Media Query for Mobile Viewport */
@media screen and (min-width: 480px) {
 
    /* Mobile Viewport: Style rules for the main content */
    main {
        margin-bottom: 1%;
        overflow: auto;
        display: grid;
        grid-template-columns: auto;
        grid-gap: 50px;
    }
    
    div {
		margin: auto;
		display: block;
		padding: 4px, 6px, 4px, 6px;
	}
    
    nav li {
		display: inline-block;
		color: white;
		padding: 4px;
		text-decoration: none;
	}
	.mail {
		display: none;	
	}

	.phone {
		display: block;
	}
}