body{
    margin:0;
    font-family: sans-serif;
    background:#f5f5f5;
}

.container{
    width:90%;
    max-width:1100px;
    margin:auto;
}

header{
    background:#222;
    color:white;
    padding:20px 0;
}

header h1{
    margin:0;
}

.site-logo{
    line-height:0;
}

.site-logo img{
    height:48px;
    width:auto;
    max-width:100%;
}

nav{
    margin-top:15px;
}

nav a{
    color:white;
    margin-right:20px;
    text-decoration:none;
}

main{
    background:white;
    padding:40px;
    min-height:500px;
}

footer{
    background:#222;
    color:white;
    text-align:center;
    padding:20px;
}
/* ==========================
   マイページ
========================== */

.member-page{
    padding:80px 30px;
    background:#fafafa;
    min-height:100vh;
}

.member-container{
    max-width:900px;
    margin:0 auto;
}

.member-title{
    text-align:center;
    font-size:42px;
    margin-bottom:60px;
    color:#333;
}

.member-menu{
    display:flex;
    flex-direction:column;
    gap:20px;
}

.member-card{
    display:block;
    padding:28px;
    background:#ffffff;
    border:1px solid #e5e5e5;
    border-radius:10px;
    text-decoration:none;
    color:#333;
    font-size:22px;
    font-weight:600;
    transition:.2s;
}

.member-card:hover{
    background:#f5f8ff;
    border-color:#2d6cdf;
}

/* ==========================
   法定表記ページ
========================== */

.legal-list dt{
    font-weight:700;
    margin-top:24px;
}

.legal-list dt:first-child{
    margin-top:0;
}

.legal-list dd{
    margin:8px 0 0;
    line-height:1.7;
}

/* ==========================
   共通ボタン
========================== */

.btn{
    display:inline-block;
    padding:12px 28px;
    background:#2d6cdf;
    color:#fff;
    font-size:16px;
    font-weight:600;
    border:none;
    border-radius:8px;
    cursor:pointer;
    text-decoration:none;
    transition:.2s;
}

.btn:hover{
    background:#1f56b5;
}

.btn-danger{
    background:#d9534f;
}

.btn-danger:hover{
    background:#b52b27;
}

/* ==========================
   通知メッセージ
========================== */

.alert-success{
    background:#d4edda;
    color:#155724;
    border:1px solid #c3e6cb;
    padding:12px;
    margin-bottom:20px;
    border-radius:6px;
}

/* ==========================
   スマホ対応 (768px以下)
========================== */

@media (max-width:768px){
    .site-logo img{
        height:36px;
    }

    main{
        padding:20px;
    }

    .member-page{
        padding:40px 20px;
    }

    .member-title{
        font-size:28px;
        margin-bottom:32px;
    }

    .member-card{
        padding:20px;
        font-size:18px;
    }
}