body,html{
    margin: 0;
    padding: 0;
    vertical-align: middle;
    font-family: "Arial", "Helvetica", sans-serif;
    justify-content: center;
    background-color: #1b1c1d;
    overflow-x: hidden;
    width: 100%;
    z-index: 0;
    letter-spacing: 0.03em;
}

a,p,span,h1,h2,h3,h4,h5,h6{
    color:#f7f7f7;
}

p{
    font-size:1rem;
}

time{
    color:#848484;
}

@font-face {
  font-family: 'MyCustomFont'; /* 任意のフォントファミリー名 */
  src: url('fonts/Cornerstone.ttf') format('truetype');
  font-weight: normal; /* フォントのウェイト (bold, normalなど) */
  font-style: normal;  /* フォントのスタイル (italic, normalなど) */
  font-display: swap; /* フォントの表示方法（読み込み中の表示をどうするか） */
}

/******************************* ヘッダー *******************************/
.header{
    background-color:#282a2c;
    border-bottom: 1px solid #333639;
}

.header-inner{
    width: 1200px;
    max-width: 100%;
    margin:auto;
    overflow: hidden;
    padding:2rem 0 1rem 0;
}

.site_name{
    width: 27%;
    padding-left:3%;
    float: left;
}

.site_name h1{
    margin:0;
}

.site_name a{
    text-decoration: none;
    display: block;
    font-size: 3rem;
    margin:0;
    padding: 0;
    font-family: 'MyCustomFont';
}

.site_name p{
    margin:0;
    padding:0;
    font-size: .85rem;
}

.header-nav-wrapper{
    float: left;
    width: 64%;
    padding:.5rem 3% 0 3%;
}

.header-nav{
    list-style: none;
    padding:0;
    margin:0;
}

.header-nav li{
    float: left;
    width:20%;
    box-sizing: border-box;
    border-left: 1px solid #333639;
    display: block;
}

.header-nav li:last-child{
    border-right:1px solid #333639;
}

.header-nav a{
    text-decoration: none;
    display:block;
    padding: 1rem 0 1rem 0;
    text-align: center;
    position: relative;
}

.header-nav a::after{
    position: absolute;
    left: 0;
    bottom:0;
    content: '';
    width: 0%;
    height: 1px;
    background-color: #5784cb;
    transition: .3s;
}

.header-nav a:hover::after{
    width: 100%;
}

/******************************* ハンバーガー *******************************/

.hamburger{
    position: fixed;
    top: 25px;
    right: 30px;
    width: 30px;
    cursor: pointer;
    z-index: 9999;
}

.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: #5784cb;
  margin: 7px 0;
  transition: 0.4s;
}

.hamburger_menu{
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    transform: translateX(100%);
    transition: transform .3s;
    z-index: 9998;
    box-shadow: 4px 4px 4px 40x rgba(0,0,0,.1);
    background-color:#282a2c;
}

/******************************* ハンバーガー（展開後） *******************************/

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.hamburger.active span {
    background-color: #5784cb;
}

.hamburger_menu.open{
    transform: translateX(0);   
}

.hidden{
    position:fixed;
    z-index:-1;
    width: 100vw;
    height: 100vh;
    background-color:black;
    opacity :0;
    transition: opacity .3s ease;
}

.hidden-active{
    z-index:1;
    opacity:.3;
}

/* ハンバーガーメニューのデザイン */
.hamburger-nav-wrapper{
    margin-top:5rem;
}

.hamburger-nav-wrapper ul{
    list-style: none;
    padding:0;
}

.hamburger-nav-wrapper li{
    border-bottom: 1px solid #f7f7f7;
    margin-left: .5rem;
    margin-right: .5rem;

}

.hamburger-nav-wrapper a{
    text-decoration: none;
    padding-bottom:0.2rem;
    padding-top: 1rem;
    padding-left: 1rem;
    display: block;
}

/****************************** 上部4タイル ******************************/
.menu-nav-wrapper{
    max-width: 100%;
    width:1200px;
    margin-bottom:3rem;
}

.menu-nav-wrapper ul{
    padding: 0;
    margin:0;
    list-style: none;
    overflow: hidden;
}

.menu-nav-wrapper li{
    float: left;
    box-sizing: border-box;
    width:24.25%;
    margin-right: 1%;
    overflow: hidden;
}

.menu-nav-wrapper li:last-child{
    margin-right: 0;
}
 
.menu-nav-wrapper a{
    display: block;
    position: relative;
    text-decoration: none;
    aspect-ratio: 16 / 9;
}

.menu-nav-wrapper img{
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    filter: brightness(50%);
    transition: filter 0.3s ease;
}

.menu-nav-wrapper li a:hover img{
    filter: brightness(100%);
}

.menu-nav-wrapper span{
    position: absolute;
    display: block;
    top:50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    width: 90%;
    text-align: center;
    /* margin:0 5% 0 5%; */
}

/***************************** メインコンテンツ ******************************/

.main-contener{
    max-width: 94%;
    width:1200px;
    margin:auto;
    margin-top:3rem;
    overflow: hidden;
}

.contener{
    width:70%;
    float: left;
}

.article-contents{
    max-width: 100%;
    width:46%;
    float: left;
    margin:0 4% 5% 0;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.article-img{
    overflow: hidden;
    aspect-ratio: 16 / 9;

}

.article-img a{
    display: block;
}

.article-img img{
    width: 100%;
    height: auto;
    transform: scale(1.01);
    transition: transform .3s ease;
    display: block;
    aspect-ratio: 16 / 9;
}

.article_title{
    overflow: hidden;
    display: flex;
    max-height: 65px;
    margin:0;
    transition: opacity .3s ease;
}

.article_title a{
    text-decoration: none;
    font-size: 1rem;
    padding-top:1rem;
}

.article_date{
    margin-top:1rem;
    display: block;
    font-size: 13px;
    color:#848484;
    opacity: 1.0;
    transition: opacity .3s ease;
}

.article-contents:hover .article-img img{
    transform: scale(1.04);
}

.article-contents:hover .article_title{
    opacity:0.7;
}

/****************************** 記事詳細 ******************************/
.entry-article{
    width: 800px;
    max-width: 94%;
    margin:auto;
    padding:3rem 3% 3rem 3%;
}

.entry-title{
    padding:0
}

.entry-meta time{
    display: block;
    margin-bottom:1.5rem;
}

.wp-block-image{
    margin-bottom:4rem;

}

.mokuji{
    width: 600px;
    max-width: 100%;
    margin:auto;
    border: 1px solid #333639;
    background-color: #282a2c;
    box-sizing: border-box;
    position: relative;
    margin-top:3rem;
}

.mokuji span{
    position: absolute;
    border-bottom:1px solid #5784cb;
    padding:1rem 1rem .5rem 1rem;
    left:50%;
    transform: translateX(-50%);
}

.mokuji ul{
    list-style: none;
    padding:0;
    margin: 4rem 2rem 2rem 2rem;
}

.mokuji li{

}

.mokuji a{
    text-decoration: none;
}

.mokuji .big{

}

.mokuji .midum{
    padding-left:2rem;
    /* font-size:.9rem; */
}

.big h2{
    border-left:10px solid #5784cb;
    border-bottom:1px solid #5784cb;
    padding:1rem 0 1rem 1rem;
    margin:3rem 0 3rem 0;
    font-size:1.3rem;
}

.midum h3{
    border-left:5px solid #5784cb;
    padding:.3rem 0 .3rem 1rem;
    margin:0;
}

.points{
    border: 1px solid #333639;
    background-color: #282a2c;
    padding:2rem;
    margin:2rem 0 2rem 0;
}

.points span{
    display: block;
}

.entry-article p{
    margin:2rem 0 2rem 0;
    font-size: 1.1rem;
    line-height:1.5;
}

/****************************** サイドバー ******************************/
.sidebar{
    width:30%;
    overflow: hidden;
    float:right;
    box-sizing: border-box;
}

.profile{
    text-align: center;
    border: 1px solid #333639;
    background-color: #282a2c;
    box-sizing: border-box;
    padding-top:3rem;
}

.profile_icon{
    margin:auto;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
}

.profile_icon img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .3s ease; /* ゆっくり変化させる */
}

.profile_icon img:hover{
    transform: scale(1.05); /* 拡大 */
}

.profile span{
    display: block;
    margin-top:1.5rem;
}

.profile p{
    display: block;
    text-align: center;
    margin:1.5rem;
    color: #f7f7f7;
}

.btn-sns{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 3rem;
    height: 3rem;
    box-sizing: border-box;
    border-radius: 50%;
    color: #f7f7f7;
    font-size: 1.5rem;
    text-align: center;
    text-decoration: none;
    transition: 0.3s;
    background-color: black;
    fill: #f7f7f7;
    margin:auto;
    margin-top:3rem;
    margin-bottom:3rem;
}

/***************************** ページネーション ******************************/
.nav-links{
    margin:auto;
    margin:2rem;
    overflow: hidden;
    margin:2em;
    text-align: center;
    display: flex;
    justify-content: center; /* 水平方向の中央揃え */
}

.page-numbers{
    text-decoration: none;
    color: #5784cb;
    display: inline-block;
    width: 50px;
    height: 50px;
    aspect-ratio: 1;
    margin-right:1rem;
    border: 1px solid #5784cb;
    line-height: 50px;
    transition: background-color .2s ease-in-out;
}

.page-numbers:hover{
    background-color:#5784cb;
    color:#f7f7f7;
    /* border: 1px solid white; */
}

.current{
    background-color: #5784cb;
    color: #f7f7f7;
}

/***************************** フッター ******************************/
.footer{
    margin-top:1.5rem;
    background-color:#282a2c;
    border-top: 1px solid #333639;
    padding-bottom:20px;
}

.footer-inner{
    width: 1200px;
    max-width: 100%;
    padding-top:1.5rem;
    margin:auto;
}

.footer-nav-wrapper{
    display: flex;
    justify-content: center;
}

.footer_nav{
    list-style: none;
    padding:0;
}

.footer_nav li{
    float:left;
}

.footer_nav li a{
    text-decoration: none;
    color:#cccccc;
    display: block;
    padding:0rem 1rem 0rem 1rem;
}

.footer-inner p{
    color: #cccccc;
    display: block;
    text-align: center;
}


/***************************** レスポンシブ ******************************/

@media screen and (min-width: 1000px) {
    .hamburger{
        display: none;
    }
}

@media screen and (max-width: 999px) {

    .header-nav-wrapper{
        display: none;
    }

    .menu-nav-wrapper{
        margin-left:2.5%;
        margin-right:0;
        max-width:100%;
    }

    .menu-nav-wrapper ul{
        margin-top:0;
    }

    .menu-nav-wrapper li{
        width: 46.5%;
        margin-right: 2.5%;
        margin-bottom:2.5%;
    }

    .main-contener{
        margin-top:0;
        padding:0;
        margin:0;
        max-width: 100%;
    }

    .contener{
        width: 100%;
        margin-left:2.5%;
    }

    .article-contents{
        width: 46.5%;
        margin-right:2.5%;
    }

    .sidebar{
        width: 95%;
        margin-top:2.5%;
        margin-right:2.5%;
        margin-left:2.5%;
    }

    .site_name{
        width: 100%;
        padding:0;
    }

    .site_name h1{
        display: block;
        margin:auto;
        text-align: center;
    }

    .site_name p{
        text-align: center;
        font-size: .9rem;
    }

    .subtitle{
        display: block;
        text-align: center;
    }

    .menu-nav-wrapper{
        margin-top:2rem;
    }
}


@media screen and (max-width: 699px) {
    .footer_nav li{
        display: block;
        width: 100%;
        text-align: center;
        margin-bottom:.5rem;
    }
}

@media screen and (max-width: 499px) {

    .entry-title{
        font-size:1.2rem;
    }

    #big h2{
        font-size:1.2rem;
    }
    
    #midum h3{
        font-size:1.2rem;
    }

    .article-contents{
        width: 100%;
        margin-bottom:2rem;
    }

    .contener{
        display: inline-block;
        margin:0;
    }


    .article_title{
        margin-right:1rem;
        margin-left:1rem;
    }

    .article_date{
        margin-right:1rem;
        margin-left:1rem;        
    }

    .footer_nav li{
        display: block;
        width: 100%;
        text-align: center;
        margin-bottom:.5rem;
    }

}