@charset "UTF-8";
/* CSS Document */
//ブレイクポイントを指定------ここから
$xl: 1399px;
$lg: 1199px;
$md: 991px;
$sm: 767px;
$xs: 575px;

@mixin xl {
  @media screen and (max-width: ($xl)) {
    @content;
  }
}
@mixin lg {
  @media screen and (max-width: ($lg)) {
    @content;
  }
}
@mixin md {
  @media screen and (max-width: ($md)) {
    @content;
  }
}
@mixin sm {
  @media screen and (max-width: ($sm)) {
    @content;
  }
}
@mixin xs {
  @media screen and (max-width: ($xs)) {
    @content;
  }
}
//ブレイクポイントを指定------ここまで

//全体のカラー設定（一括）----ここから
$main-color: #000;
$sub-color: #0090d5;
//全体のカラー設定（一括）----ここまで


//ボタン------------------------------------------------------------------ここから
a.link{
	font-size: 1.6rem;
	font-size: 16px;
	font-weight:bold;
	position: relative;
	display: inline-block;
	padding: 1rem 4rem;
	cursor: pointer;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
	-webkit-transition: all 0.3s;
	text-align: center;
	vertical-align: middle;
	text-decoration: none;
	letter-spacing: 0.1em;
}

//ベース
ul.demo1 li:nth-child(1) a.link-flat {
	overflow: hidden;
	padding: 1rem 6rem;
	color: #fff;
	background: #000;
	position: relative;
	&::after{
		content: '';
		font-family: "Font Awesome 5 Free";
		content: "\f054";
		font-weight: 900;
		padding-right : 5px;
		color: #fff;
		position: absolute;
		right: 10px;
		-webkit-transition: all .3s ease-in-out;
		transition: all .3s ease-in-out;
	}
	span {
		position: relative;
	}
	&:hover {
		background: $sub-color;
	}
	&:hover::after {
		right: 0;
	}
}


//左から右へ背景が変わるホバーボタン：水平
ul.demo2 li:nth-child(1) a.link-flat {
	overflow: hidden;
	padding: 1rem 6rem;
	color: #fff;
	background: #000;
	position: relative;
	&::after{
		content: '';
		font-family: "Font Awesome 5 Free";
		content: "\f054";
		font-weight: 900;
		padding-right : 5px;
		color: #fff;
		position: absolute;
		right: 10px;
		-webkit-transition: all .3s ease-in-out;
		transition: all .3s ease-in-out;
	}
	span {
		position: relative;
	}
	&::before{
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		content: '';
		-webkit-transition: all .3s ease-in-out;
		transition: all .3s ease-in-out;
		-webkit-transform: translateX(-100%);
		transform: translateX(-100%);
		background: $sub-color;
	}
	&:hover::before {
		-webkit-transform: translateX(0%);
		transform: translateX(0%);
	}
	&:hover::after {
		right: 0;
	}
}

//左から右へ背景が変わるホバーボタン：斜め
ul.demo2 li:nth-child(2) a.link-flat {
	overflow: hidden;
	padding: 1rem 6rem;
	color: #fff;
	background: #000;
	position: relative;
	&::after{
		content: '';
		font-family: "Font Awesome 5 Free";
		content: "\f054";
		font-weight: 900;
		padding-right : 5px;
		color: #fff;
		position: absolute;
		right: 10px;
		-webkit-transition: all .3s ease-in-out;
		transition: all .3s ease-in-out;
	}
	span {
		position: relative;
	}
	&::before{
		position: absolute;
		top: 0;
		left: 0;
		width: 500%;
		height: 500%;
		content: '';
		-webkit-transition: all .5s ease-in-out;
		transition: all .5s ease-in-out;
		-webkit-transform: translateX(-65%) translateY(-70%) rotate(145deg);
		transform: translateX(-65%) translateY(-70%) rotate(145deg);
		background: $sub-color;
	}
	&:hover::before {
		-webkit-transform: translateX(-43%) translateY(-25%) rotate(135deg);
		transform: translateX(-43%) translateY(-25%) rotate(135deg);
	}
	&:hover::after {
		right: 0;
	}
}

//左から右へ背景が変わるホバーボタン：円形
ul.demo2 li:nth-child(3) a.link-flat {
	overflow: hidden;
	padding: 1rem 6rem;
	color: #fff;
	background: #000;
	position: relative;
	&::after{
		content: '';
		font-family: "Font Awesome 5 Free";
		content: "\f054";
		font-weight: 900;
		padding-right : 5px;
		color: #fff;
		position: absolute;
		right: 10px;
		-webkit-transition: all .3s ease-in-out;
		transition: all .3s ease-in-out;
	}
	span {
		position: relative;
	}
	&::before{
		position: absolute;
		top: 0;
		left: 0;
		width: 100px;
		height: 100px;
		content: '';
		-webkit-transition: all .5s ease-in-out;
		transition: all .5s ease-in-out;
		-webkit-transform: translateX(-100%) translateY(-25px);
		transform: translateX(-100%) translateY(-25px);
		background: $sub-color;
		border-radius: 50%;
	}
	&:hover::before {
		 width: 400px;
		height: 400px;
		-webkit-transform: translateX(-1%) translateY(-175px);
		transform: translateX(-1%) translateY(-175px);
	}
	&:hover::after {
		right: 0;
	}
}

//グラデーションボタン
ul.demo2 li:nth-child(4) a.link-flat {
	position:relative;
	z-index:0;
	overflow: hidden;
	padding: 1rem 6rem;
	color: #fff;
	background: #000;
	position: relative;
	&::before{
		content:"";
		width:100%;
		height:100%;
		position:absolute;
		z-index:-1;
		left:0;
		top: 0;
		transition:0.5s;
		background: linear-gradient(45deg, rgba(0,144,213,1) 0%, rgba(0,0,0,1) 100%);

	}
	&::after{
		content:"";
		width:100%;
		height:100%;
		position:absolute;
		z-index:-2;
		left:0;
		top: 0;
		background: linear-gradient(45deg, rgba(0,0,0,1) 0%, rgba(0,144,213,1) 100%);

	}
	&:hover::before{
		opacity:0;
	}
}

.block-h80{
	height: 80px;
	display: flex;
	align-items: center;
	justify-content: center;
}

//トップへ戻るボタン：丸ボタン
ul.demo3 li:nth-child(1) .square-up{
    font-size: 2.5rem;
    background: #fff;
    color: #000;
    padding: 10px;
    width: 40px;
    height: 40px;
	display: flex;
    justify-content: center;
    align-items: center;
	border: solid 2px #000;
	transition: 0.3s;
	div{
		display: block;
		margin-top: 10px;
		width: 20px;
		height: 16px;
		border-top: 2px solid #000;
		border-left: 2px solid #000;
		transform: rotate(45deg);
	}
	&:hover{
		box-shadow: 0 2px 10px -6px rgba(0,0,0,.5), 0 3px 10px -4px rgba(0,0,0,.2);
		background: #000;
		color: #fff;
		div{
			border-top: 2px solid #fff;
			border-left: 2px solid #fff;
		}
	}
}

//トップへ戻るボタン：丸ボタン
ul.demo3 li:nth-child(2) .circle-up{
    font-size: 2.5rem;
    background: #fff;
    color: #000;
    padding: 10px;
    width: 40px;
    height: 40px;
	display: flex;
    justify-content: center;
    align-items: center;
	border: solid 2px #000;
    border-radius: 50%;
	transition: 0.3s;
	&:hover{
		box-shadow: 0 2px 10px -6px rgba(0,0,0,.5), 0 3px 10px -4px rgba(0,0,0,.2);
		background: #000;
		color: #fff;
	}
}

//トップへ戻るボタン：矢印
ul.demo3 li:nth-child(3) .arrow-up{
    display: flex;
    justify-content: center;
	padding-left: 3rem;
    height: 50px;
    width: 65px;
    text-decoration: none;
    font-weight: bold;
    transform: rotate(90deg);
    font-size: 90%;
    line-height: 2rem;
    color: #737373;
    transition: 0.3s;
	&::before {
		content: "";
		display: block;
		position: absolute;
		top: -1px;
		left: 0px;
		width: 15px;
		border-top: solid 1px;
		transform: rotate(35deg);
		transform-origin: left top;
		transition: 0.3s;
	}
	&::after {
		content: "";
		display: block;
		position: absolute;
		height: 50px;
		width: 65px;
		top: -1px;
		right: 1px;
		border-top: solid 1px;
		transition: 0.3s;
	}
	&:hover::before{
		transform: rotate(35deg) translateX(-6px) translateY(5px);
	}
	&:hover::after{
		transform: translateX(-8px);
	}
}

//トップへ戻るボタン：矢印
ul.demo3 li:nth-child(4) .simple-up{
    width: 40px;
    background: none;
    color: #000;
    border-top: 3px solid #000;
    display: block;
	&::before {
		display:none;
	}
	&::after {
		content:"↑";
		display:block;
		text-align:center;
		padding-top:0.5rem;
		font-size:30px;
		transition: 0.3s;
	}
	&:hover::after{
		transform: translateY(-8px);
		}
}

//トップへ戻るボタン：文字ボタン
ul.demo3 li:nth-child(5) .font-up{
    font-size: 1.6rem;
    background: #000;
    color: #fff;
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border: solid 2px #000;
    transition: 0.3s;
	&:hover{
		box-shadow: 0 2px 10px -6px rgba(0,0,0,.5), 0 3px 10px -4px rgba(0,0,0,.2);
		background: #fff;
		color: #000;
	}
}


//調整用------------------------------------------------------------------ここから
article ul.demo3{
	margin-top: 10rem;
}