/* CSS Document */


/*
font-family: tbudgothic-std, sans-serif;
font-weight: 700/900/400;
*/
:root{
	--navbg-color: #2d2d2d;
}

*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: tbudgothic-std, sans-serif;
	font-size: 16px;
	font-weight: 400;
}


a{
	text-decoration: none;
	font-weight: 700;
}

body{
	text-align: center;
	background-color: orange;
	background-image:
	 repeating-linear-gradient(-45deg,
	 rgba(255,255,255,0.2), rgba(255,255,255,0.2) 7.5px,
	 transparent 0, transparent 15px);
	background-attachment: fixed;
}

/* CSS Document */

nav {
	width: 100%;
	position: fixed;
	color: white;
	line-height: 56px;
	background-color: var(--navbg-color);
	z-index: 10;
}
nav label{
	cursor: pointer;
	width: 100%;
	font-weight: 700;
	display: none;
}
.menubutton{
	height: 100%;
	width: 28px;
	display: inline-block;
	vertical-align: middle;
	margin: 4px 12px;
}
.menubutton div{
	background-color: white;
	width: 100%;
	height: 4px;
	border-radius: 2px;
	margin: 6px 0;
}
nav a{
	max-width: 160px;
	display: inline-block;
	width: 13.5%;
	font-size: 16px;
	height: 56px;
	transition-duration: 0.5s;
	transition-property: height, background-color;
	opacity: 1;
	font-weight: 700;
	background-color: var(--navbg-color);
	padding: 0 10px;
}

#navcheck:checked ~ a{
	height: 56px;
	opacity: 1;
}

nav a:link, nav a:visited{
	color: white;
}
nav a:hover, nav a:active{
	color: white;
	background-color: dimgray;
}

header{
	color: white;
	line-height: 48px;
	padding: 24px;
	width: 100%;
	/*height: 500px;*/
	padding-top: 72px;
	text-align: center;
	text-shadow: 2px 2px 1px rgba(0,0,0,0.7);
	display: flex;
    justify-content: center; /*左右中央揃え*/
    align-items: center; 
}

.header-div{
	padding: 48px;
	line-height: 56px;
	font-weight: 900;
	border: white 2px solid;
	background-color: rgba(255,255,255,0.3);
	font-size: 48px;
	margin: auto;
}

header hr{
	margin: 32px auto;
	width: 100px;
	border-style: none;
	border-bottom: white 5px dotted;
}

.header-icons {
	display: flex;
    justify-content: center; /*左右中央揃え*/
    align-items: center; 
}

header a, header a:visited{
	width: 88px;
	height: 88px;
	padding: 12px 0px;
	line-height: 24px;
	font-weight: 700;
	margin: 0 12px;
	transition: 0.3s;
	color: white;
	text-shadow: none;
	border: white 2px solid;
	background-color: white;
	border-radius: 3px;
}

header a.twitter{
	background-color: #55acee;
}
header a.niconico{
	background-color: dimgray;
}
header a.youtube{
	background-color: orangered;
}
header a.bilibili{
	background-color: cornflowerblue;
}

header a:hover{
	box-shadow: 0 0 5px 2px white;
}

article a, article a:visited, article a:hover,article a:active{
	text-decoration: underline;
	text-decoration-style: double;
	color:lightcoral;
}

article {
	line-height: 36px;
	padding: 24px 24px;
	max-width: 100%;
	background-color: floralwhite;
}
article div{
	max-width: 1000px;
	margin: auto;

}
h1 {
	text-align: center;
	margin: 0;
	font-weight: 900;
	font-size: 36px;
	color: white;
	padding: 30px;
	text-shadow: 2px 2px 1px rgba(0,0,0,0.7);
	border-bottom: solid orange 6px;
	background-color: rgba(255,255,255,0.3);
}

h1.body{
	font-size: 24px;
	padding: 20px 30px;
}

article.history {
	margin: 24px;
	max-width: 100%;
	border: 4px orange dotted;
	background-color: floralwhite;
	box-shadow: 0 0 0 24px floralwhite;
}

article h2{
  position: relative;
  display: inline-block;
  padding: 0 55px;
}

article h2:before, article h2:after {
  content: '';
  position: absolute;
  top: 15px;
  display: inline-block;
  width: 45px;
  height: 0px;
	border-bottom: 4px orange dotted;
}
article h2:before {
  left:0;
}
article h2:after {
  right: 0;
}

.small{
	font-size: 0.8em;
}
.bold{
	font-weight: 900;
}
.red{
	color: orangered;
}
span.a{
	cursor:pointer;
	font-weight: 700;
	text-decoration: underline;
	text-decoration-style: double;
	color:lightcoral;
}

table{
	width: 100%;
	margin: 8pt 0;
	text-align: left;
}
td{
	padding: 8px 0;
	background-color: floralwhite;
}
th{
	padding: 8px 24px;
	border-bottom: thick orange solid;
	background-color: blanchedalmond;
}

.one th{
	border-color: orangered;
}
.two th{
	border-color: gray;
}

h2 {
	margin: 0;
	font-size: 12pt;
	font-weight: 700;
}
button, input, select, textarea {
font-family: sans-serif;
  font-size   : 14px;
}
form input.shorttext {
	max-width: 320px;
}
form input[type="text"], form textarea{
	margin: 8px 0;
	padding: 4px 8px;
	border-radius: 3px;
	width: 100%;
	border: solid 1px orange;
	transition: 0.5s;
	transition-property: box-shadow;
	box-shadow: none;
	outline: none;
}
form button{
	color:white;
	border-radius: 3px;
	padding: 6px 12px;
	font-weight: 700;
	background-color: orange;
	outline: none;
	border: none;
	box-shadow: 2px 2px 1px 0px indianred;
}
button:disabled{
	background-color: darkgray;
	box-shadow: none;
}
form textarea{
	min-height:100px;
}
form input:focus, form textarea:focus{
	box-shadow: 0 0 3px 1px orange;
}
@media (max-width : 900px ){
	nav label{
		display: inline-block;
	}
	article.details{
	}
	nav a{
	display: block;
	width: 100%;
	height: 0px;
	opacity: 0;
	padding: 0 24px;
		max-width: 100%;
}.header-div {
		padding: 36px;
	}
}
.memo{
	padding: 8px 12px;
	border-left: solid gray medium;
	background-color: whitesmoke;
	box-shadow: 2px 2px 2px 0px lightgray;
	margin: 4px 0px;
}
@media (max-width: 480px){
	.header-div {
		font-size: 32px;
		line-height: 48px;
		padding: 30px;
	}
}
@media (max-width: 320px){
	.header-div {
		padding: 24px;
	}
}

.inlineblock{
	display: inline-block;
	font: inherit;
}