/*css
//==>>>==>>>==>>>==>>>==>>>==>>>==>>>==>>>==>>>==>>>==>>>==>>>==>>>
//
//
//
//==<<<==<<<==<<<==<<<==<<<==<<<==<<<==<<<==<<<==<<<==<<<==<<<==<<<
*/
*,
*::before,
*::after{
	box-sizing:border-box;
}
html{
	scrollbar-color:#abc8e5 #dee7ef;
}
body{
	position:relative;
	margin:0;
	padding:0;
	font-family:'Lucida Grande','Hiragino Kaku Gothic ProN', Meiryo, "sans-serif";
	font-style:normal;
	font-weight:normal;
	font-size:16px;
	line-height:1.6;
	letter-spacing:0.03em;
	text-align:left;
	vertical-align:baseline;
	overflow-y:scroll;

	display:grid;
	width:100%;
	min-height:100vh;
	grid-template-rows:auto minmax(0,1fr) auto;
}
input,
textarea,
option{
	color:black;
}
header{
	padding:5px 0;
	color:#eee;
	background:linear-gradient(to bottom,#222 0%,#222 50%,#000 50%,#000 100%);
	box-shadow:0px 0px 10px 0px #000;
	z-index:1;
	user-select:none;
	display:flex;
	justify-content:space-between;
	align-items:center;
}
header .header-left{
	display:flex;
	justify-content:flex-begin;
	align-items:center;
}
header .menu-button{
	display:inline-block;
	margin-left:5px;
	flex:0 0 40px;
	color:#eee;
}
header .app-title{
	position:relative;
	top:1px;
	display:inline-block;
	margin-left:5px;
	font-size:26px;
}
nav{
	padding:5px 15px;
	font-size:16px;
	background-color:#eee;
}
main{
	display:flex;
	justify-content:center;
}
.columns{
	position:relative;
	flex:auto;
	min-width:200px;
	max-width:1000px;
	/* flex for child elements */
	display:flex;
	flex-direction:row;
}
.columns-left,
.columns-right{
	flex:0 0 20px;
	text-align:center;
}
.columns-center{
	padding:30px 15px 50px 15px;
	/* Allow this flex item
		to shrink to 0px */
	min-width:0;
	flex:auto;
	text-align:left;
	background-color:white;
	border:1px solid #eee;
	border-width:0 1px 0 1px;
	word-break:break-all;
}
footer{
	padding:10px 15px;
	color:white;
	background:linear-gradient(to right,#444 0%,#000 25%,#000 75%,#444 100%);
	background:linear-gradient(to right,#000 0%,#333 25%,#333 75%,#000 100%);
	box-shadow:0px 0px 10px 0px #000;
	z-index:1;
	display:flex;
	justify-content:center;
	align-items:center;
}
footer a{
	font-weight:bold;
	font-size:14px;
	color:#aaa;
	text-decoration:none;
}