body {
    --black: #1c2426;
	--white: #f8f6f1;
	--whiter: #ffffff;
	--blue: #6CA6D9;
	--dkblue: #265e8f;
	--green: #91A644;
	--dkgreen: #5b6927;
	--gray: #868F96;
	--dkgray: #31333F;
    --yellow: #FDF0D0;
	--red: #912c2c;
	color: var(--black);
	background-color: var(--blue);
	font-family: "Noto sans", Arial, Helvetica, sans-serif;
	font-size: 1.2em;
	line-height: 1.4em;
}

#container {
	max-width: 960px;
	margin-left: auto;
	margin-right: auto;
	background-color: var(--white);
	padding: 40px;
}


h1, h2 {
	font-family: "Tillana", Times, serif;
	color: var(--dkgray);
	font-weight: 600;
	padding-top: 20px;
}

h1 {
	font-size: 2.5em;
	padding-bottom: 20px;
	text-align: center;
	line-height: 1.3em;
}

h2 {
	font-size: 1.5em;
}

a {
	text-decoration: none;
}

a:link, a:visited {
	color: var(--dkblue);
}

a:hover, a:active {
	color: var(--dkgreen);
}

img {
	display: block;
	margin: 0 auto;
	max-width: 100%;
	height: auto;
	padding-top: 20px;
}

/********* Nav *********/

#navigation {
	background-color: var(--whiter);
}

#navigation ul {
	list-style-type: none;
}

#navigation ul li {
	padding: 10px;
}

#navigation a {
	text-align: center;
	background-color: var(--whiter);
	height: 1fr;
}

/********** Footer *********/

footer {
	margin-top: 60px;
	padding-top: 10px;
	padding-bottom: 10px;
	text-align: center;
}

/********** CSS Basics *********/

.red {
	color: var(--red);
}

.border {
	border: medium solid;
	padding-right: 10px;
	padding-left: 10px;
}

/*********** Table ***********/
table, th, td {
	border-style: solid;
	border-width: 2px;
	border-color: var(--dkgreen);
	text-align: center;
}

/********* Background Image **********/
.background {
	background-image: url('images/alaska_river_600x800.jpg');
	background-size: cover;
	width: 600px;
	height: 800px;
	margin-right: auto;
	margin-left: auto;
	margin-top: 60px;
}

.background h2, .background p {
	color: var(--white);
	padding: 20px;
	background-color: rgba(1, 1, 1, 0.3)
}

/********* Gradient **********/

.gradient {
	background: #FDF0D0;
	background: radial-gradient(circle,rgba(253, 240, 208, 1) 0%, rgba(38, 94, 143, 1) 100%);
}

/******************************** Responsive ************************************/

@media only screen and (min-width: 400px) { 

#navigation ul {
	list-style-type: none;
	display: grid;
	grid-template-columns: 1fr 1fr;
	justify-content: center;
	justify-items: left;
	margin: 0;
	padding: 10px;	
}

}

@media only screen and (min-width: 600px) { 

#navigation ul {
	list-style-type: none;
	display: flex;
	justify-content: center;
	margin: 0;
	padding: 0;	
}

#navigation a {
	display: block;
	text-align: center;
	height: 1fr;
}

#navigation ul li {
	flex: 1;
	border-right-style: solid;
	border-right-color: var(--dkblue);
	border-right-width: 2px;
	width: 25%;
	height: 1fr;
}

#navigation ul li:last-of-type {
	border-right-style: none
}

}

@media only screen and (min-width: 960px) { 

#responsive {
	display: flex;
	justify-content: space-between;
	max-width: 1200px;
	margin-left: auto;
	margin-right: auto;
}

#responsive article {
	width: 30%;
}

}