/*********************** common ***********************/
html, body {
	width: 100%;
	height: 100%;
	overflow: hidden;
	margin: 0 auto;
	font-family: 'Noto Sans KR', sans-serif;
}

a {
	text-decoration: none;
	outline: none;
}

a:hover, a:active {
	text-decoration: none;
}

/* scroll bar */
::-webkit-scrollbar {
	width: 8px;
	height: 8px;
	border: 3px solid #fff;
}

::-webkit-scrollbar-button:start:decrement, ::-webkit-scrollbar-button:end:increment {
	display: block;
	height: 4px;
	background: #efefef;
}

::-webkit-scrollbar-track {
	background: #efefef;
	border-radius: 10px;
	-webkit-border-radius: 10px;
	-webkit-box-shadow: inset 0 0 4px rgba(0, 0, 0, .2);
}

::-webkit-scrollbar-thumb {
	background: rgba(0, 0, 0, .2);
	border-radius: 8px;
	-webkit-border-radius: 8px;
	-webkit-box-shadow: inset 0 0 4px rgba(0, 0, 0, .1);
}

/*********************** progress & loading ***********************/
#loading {
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	background: #fff;
	z-index: 9999;
}

#loading #progress {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-direction: column;
	width: 100vw;
	height: 100vh;
}

#loading #progress .tick {
	max-width: 40em;
	max-height: 40em;
	text-align: center;
}

#loading #progress .tick-group {
	font-size: 2em;
}

#loading #progress .tick-line {
	width: 5.5em;
}

#loading #progress .tick p {
	font-size: .3825em;
	margin: 10px 0 -10px 0;
	color: #999;
	white-space: nowrap;
}

#close {
	position: absolute;
	top: 10px;
	left: 10px;
	display: none;
	cursor: pointer;
}

/* howto */
.howto {
	position: absolute;
	top: 10px;
	left: -webkit-calc((100% - 300px) / 2);
	left: calc((100% - 300px) / 2);
	width: 300px;
	padding: 0 10px 0 10px;
	background: #d3d3d3;
	opacity: 0.6;
	display: none;
	z-index: 9;
}

.howto p {
	color: #000;
	font-size: 18px;
	font-weight: 700;
}

.howto i {
	position: absolute;
	top: 6px;
	left: -webkit-calc(100% - 12px - 10px);
	left: calc(100% - 12px - 10px);
	cursor: pointer;
	color: #000;
	font-size: 16px;
}