/* ===========================
   基本設定
=========================== */

body{

    margin:0;
    background:#000;
    color:#fff;
    font-family:"Yu Mincho",serif;

}

html{

    scroll-behavior:smooth;

}

/* 背景 */

.background{

    position:fixed;

    top:0;
    left:0;

    width:100%;
    height:100svh;

    background:url("images/background.jpg") center center / cover no-repeat;

    filter:brightness(.33);

    z-index:-1;

}

/* 全体 */

.container{

    width:92%;
    max-width:1500px;

    margin:auto;

    padding:70px 0 100px;

}

/* ===========================
   タイトル
=========================== */

h1{

    margin:0;

    text-align:center;

    font-size:60px;

    font-weight:normal;

    letter-spacing:.35em;

}

.subtitle{

    text-align:center;

    margin:-15px 0 25px;

    font-size:18px;

    color:rgba(255,255,255,.65);

    letter-spacing:.2em;

}

/* 飾り */

.title-decoration{

    display:flex;

    justify-content:center;

    align-items:center;

    gap:20px;

    margin-bottom:60px;

}

.title-decoration::before,
.title-decoration::after{

    content:"";

    width:400px;

    height:1px;

    background:rgba(255,255,255,.25);

}

.title-decoration span{

    color:white;

    font-size:22px;

}

/* ===========================
   レイアウト
=========================== */

.layout{

    display:grid;

    grid-template-columns:170px 1fr;

    gap:90px;

    align-items:start;

}

.side-menu a{

    display:block;

    color:rgba(255,255,255,.72);

    text-decoration:none;

    letter-spacing:.18em;

    font-size:18px;

    margin-bottom:26px;

    text-align:center;

    transition:.35s;

}

.side-menu a::after{

    content:"";

    display:block;

    width:70px;

    height:1px;

    margin:12px auto 0;

    background:linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,.25),
        transparent
    );

    transition:.35s;

}

.side-menu a:hover{

    color:#ffd8ea;

    transform:translateX(6px);

}

.side-menu a:hover::after{

    width:100px;

    background:linear-gradient(
        90deg,
        transparent,
        #ffd8ea,
        transparent
    );

}

/* ===========================
   メイン
=========================== */

.content{

    max-width:1000px;

}

section{

    margin-bottom:120px;

}

section h2{

    text-align:center;

    font-size:38px;

    font-weight:normal;

    letter-spacing:.18em;

    margin-bottom:35px;

}

/* ===========================
   メイン画像
=========================== */

.about-main{

    display:block;

    width:100%;

    border-radius:18px;

    border:1px solid rgba(255,255,255,.15);

    box-shadow:0 0 35px rgba(255,255,255,.08);

    margin-bottom:45px;

    transition:.4s;

}

.about-main:hover{

    transform:scale(1.01);

    box-shadow:0 0 45px rgba(255,220,235,.2);

}

/* ===========================
   文章
=========================== */

.section-text{

    text-align:center;

    line-height:2.4;

    font-size:17px;

    color:rgba(255,255,255,.82);

}

/* ===========================
   スタッフ
=========================== */

.staff-grid{

    display:grid;

    grid-template-columns:repeat(2,1fr);

    gap:35px;

}

.staff-card{

    background:rgba(255,255,255,.08);

    border:1px solid rgba(255,255,255,.15);

    backdrop-filter:blur(10px);

    border-radius:18px;

    padding:35px;

    text-align:center;

    transition:.35s;

}

.staff-card:hover{

    transform:translateY(-5px);

    border-color:#ffd8ea;

    box-shadow:0 0 30px rgba(255,210,230,.25);

}

.staff-card h3{

    margin-top:0;

    margin-bottom:20px;

    font-size:28px;

    font-weight:normal;

    letter-spacing:.08em;

    min-height:2.8em;

    display:flex;

    justify-content:center;

    align-items:center;

    flex-direction:column;

}

.staff-card p{

    margin:0;

    line-height:2.2;

    color:rgba(255,255,255,.8);

}

/* ===========================
   戻る
=========================== */

.back{

    display:table;

    margin:70px auto 0;

    padding:12px 34px;

    border:1px solid rgba(255,255,255,.25);

    border-radius:30px;

    color:#fff;

    text-decoration:none;

    transition:.35s;

}

.back:hover{

    color:#ffd8ea;

    border-color:#ffd8ea;

    box-shadow:0 0 20px rgba(255,180,220,.3);

}

/* ===========================
   世界観画像
=========================== */

.world-images{

    display:grid;

    grid-template-columns:repeat(2,1fr);

    gap:30px;

    margin-bottom:40px;

}

.world-images figure{

    margin:0;

    text-align:center;

}

.world-images img{

    width:100%;

    border-radius:18px;

    border:1px solid rgba(255,255,255,.15);

    box-shadow:0 0 25px rgba(255,255,255,.08);

    transition:.35s;

}

.world-images img:hover{

    transform:scale(1.02);

    box-shadow:0 0 35px rgba(255,210,230,.2);

}

.world-images figcaption{

    margin-top:12px;

    color:rgba(255,255,255,.7);

    letter-spacing:.08em;

}

/* ===========================
   スマホ最適化
=========================== */

@media(max-width:900px){

    .container{

        width:92%;
        padding:45px 0 70px;

    }

    h1{

        font-size:34px;
        letter-spacing:.18em;

    }

    .subtitle{

        margin:-8px 0 20px;
        font-size:13px;
        letter-spacing:.12em;

    }

    .title-decoration{

        margin-bottom:35px;

    }

    .title-decoration::before,
    .title-decoration::after{

        width:120px;

    }
    .top-button{
    display:none;
}

    /* レイアウト */

    .layout{

        display:block;

    }

   /* 左メニュー */

.side-menu{

    display:none;

}

    .side-menu a{

        margin:0;

        font-size:15px;

    }

    .side-menu a::after{

        display:none;

    }

    /* 本文 */

    .content{

        max-width:100%;

    }

    section{

        margin-bottom:70px;

    }

    section h2{

        font-size:28px;

        margin-bottom:22px;

    }

    .about-main{

        margin-bottom:25px;

    }

.section-text{

    font-size:14px;
    line-height:2.15;

    text-align:center;

    letter-spacing:.02em;

}

    /* スタッフ */

    .staff-grid{

        grid-template-columns:repeat(2,1fr);

        gap:14px;

    }

    .staff-card{

        padding:18px;

    }

    .staff-card h3{

        font-size:18px;

        margin-bottom:10px;

    }

    .staff-card p{

        font-size:13px;

        line-height:1.9;

    }

    /* 世界観画像 */

    .world-images{

        grid-template-columns:repeat(2,1fr);

        gap:14px;

    }

    .world-images figcaption{

        font-size:12px;

    }

}
.staff-name{
    white-space: nowrap;
}
.staff-name{

    font-size:.80em;

    opacity:.85;

    white-space:nowrap;

    letter-spacing:.03em;

}
/* ==========================
   セクション区切り
========================== */

section{
    position:relative;
    padding-bottom:20px;
    margin-bottom:20px;
}

section:not(:last-of-type)::after{
    content:"";
    display:block;
    width:70%;
    height:1px;
    margin:25px auto 0;
    background:linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,.25),
        transparent
    );
}
/* 左上TOPボタン */

.top-button{

    position:absolute;

    top:40px;
    left:40px;

    padding:10px 24px;

    border:1px solid rgba(255,255,255,.25);
    border-radius:30px;

    color:#fff;
    text-decoration:none;

    transition:.35s;

}

.top-button:hover{

    color:#ffd8ea;
    border-color:#ffd8ea;

    box-shadow:0 0 18px rgba(255,180,220,.25);

}