/*全体設定*/
* {
    box-sizing: border-box;
    margin:0;
    padding:0;
}
a{
    text-decoration: none;
}

html,body{
    height:100%;
}

body:after{
    position: fixed;/*固定配置*/
    top: 0; left: 0;/*左上に固定*/
    width: 100%; height: 100%;/*画面全体を覆う*/
    content: "";
    z-index: -1;
    background: linear-gradient(160deg,#9da4dd 0%,#db90ec  100%);
}

/*header部*/
header{
    height: 60px;
    width: 100%;
    background-color: rgba(16, 0, 32, 0.8);
    position:fixed;
    top:0;
    z-index:10;

}
.header-logo{
    float:left;
}

.header-logo a{
    display: block;
    height:60px;
    margin-left:40px;
}

.header-logo a:hover{
    background-color: rgba(16, 0, 32, 0.3);
}

.header-menu{
    float: right;
    margin-right:80px;
}

.header-menu a{
    display: block;
    color:white;
    line-height: 60px;
    width:100px;
    float:left;
    text-align:center;
    font-weight: bold;
    background-color:rgba(0,0,0,0%);
    transition: all 0.5s;

}

.header-menu a:hover{
    color: #ff4fff;
    background: linear-gradient(to bottom,rgba(16, 0, 32, 30%) 90%, #ff4fffb3 98%,rgba(0,0,0,0%) 100%);
    

}

.header-menu ul{
    list-style-type: none;
}

.header-menu li{
    float:left;
}

#menu-icon{
    float:right;
    display:none;
    height:60px;
}

.hamburger-icon{
    font-size:30px;
    color:white;
    margin-right:20px;
    padding-top:10px;
    transition: all 0.5s;
    
}


.hamburger-icon:hover{
    color:#ff4fff;
}


/*メインコンテンツ部*/
.topcontent-wrapper{
    width: 100%;
    flex-direction: column;
    padding-top:40px;
}


.content{
    margin: 0 auto;
    width: 80%;
    background-color: rgba(255,255,255,50%);
    box-shadow: 1px 1px 2px 2px rgba(0,0,0, 0.1);
    border-radius: 5px;
    transition: all 0.5s;
}

.content:hover{
    background-color: rgba(255,255,255,90%);
}

.content h2{
    margin-left:20px;
    padding-top:10px;
}

.content p{
    padding:5px 20px 5px 20px;
    width:100%;
}

.content ul{
    list-style: none;
    padding:5px 20px 5px 20px;
}

.content li{
    position: relative;
    padding-left:1.5em;
}

.content li::before{
    position:absolute;
    left:0;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    content:'\f186';
    color: #ffad4f;
    padding-top:3px;
}


.content-space{
    width:100%;
    height: 5px;
}

/*フッター部*/
footer{
    height: 40px;
    width: 100%;
    background-color: rgba(16, 0, 32, 0.8);
    float:bottom;
    position:fixed;
    bottom:0;
    z-index:10;
}

.footer-content{
    margin :0 auto;
    position:relative;
    width: 250px;
}

.copyright{
    float:left;
}

.copyright p{
    color:white;
    line-height: 40px;
    font-size: 12px;
    text-align: center;
}
.sns a{
    display: block;
    height:40px;
    float:right;
    padding-right:10px;
}

.twitter{
    padding-top:6px;
}
.pixiv{
    padding-top:8px;
}



/*常駐ボタン*/
#page-top{
  display:none;
  opacity:60%;
  width: 50px;
  height: 50px;
  position: fixed;
  right: 20px;
  bottom: 60px;
  border-radius:25px;
  background-color: rgba(16, 0, 32, 0.8);
  transition: opacity 0.5s;
}

#page-top:hover{
    opacity:100%;
  }

#page-top a{
  width: 50px;
  height: 50px;
  position: relative;
  display: block;

  color:white;
  text-align: center;
  font-size: 35px;
}