html, body, h1, ul, li, div {
    margin: 0;
    padding: 0;
}

html {
    overflow-x: hidden;
}

body {
    background-color: #3a6ea5;
    font-family: "MS PGothic", "ＭＳ Ｐゴシック", sans-serif;
    padding-top: 70px;
    color: #000000;
}

.site-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 50px;
    background-color: #c0c0c0;
    padding: 10px 0;
    z-index: 1000;
    border-bottom: 2px solid #808080;
    _width: 100%;
    _zoom: 1;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-shadow: 0 1px 0 #ffffff;
}

.nav-list {
    list-style: none;
    text-align: center;
    width: 100%;
}

.nav-item {
    display: inline;
    margin: 0 15px;
}

.nav-item a {
    display: inline-block;
    text-decoration: none;
    color: #000000;
    font-size: 14px;
    padding: 4px 10px;
    background-color: #c0c0c0;
    border-top: 2px solid #ffffff;
    border-left: 2px solid #ffffff;
    border-right: 2px solid #808080;
    border-bottom: 2px solid #808080;
}

.nav-item a:hover {
    background-color: #e0e0e0;
}

.nav-item a:active {
    background-color: #b0b0b0;
    border-top: 2px solid #808080;
    border-left: 2px solid #808080;
    border-right: 2px solid #ffffff;
    border-bottom: 2px solid #ffffff;
}

h1 {
    font-size: 40px;
    line-height: 1.2;
    text-align: center;
    color: #ffffff;
    font-weight: bold;
    margin: 20px 10px 0 10px;
}

.container {
    width: 830px;
    margin: 30px auto 0 auto;
    _zoom: 1;
}

.container:after {
    content: "";
    display: block;
    clear: both;
}

.window-left {
    width: 190px;
    float: left;
    background-color: #c0c0c0;
    padding: 3px;
    border-top: 2px solid #ffffff;
    border-left: 2px solid #ffffff;
    border-right: 2px solid #000000;
    border-bottom: 2px solid #000000;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

.window-right {
    width: 190px;
    float: right;
    background-color: #c0c0c0;
    padding: 3px;
    border-top: 2px solid #ffffff;
    border-left: 2px solid #ffffff;
    border-right: 2px solid #000000;
    border-bottom: 2px solid #000000;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

.main-content {
    width: 400px;
    float: left;
    margin-left: 10px;
}

.window {
    width: 400px;
    background-color: #c0c0c0;
    margin-bottom: 30px;
    padding: 3px;
    border-top: 2px solid #ffffff;
    border-left: 2px solid #ffffff;
    border-right: 2px solid #000000;
    border-bottom: 2px solid #000000;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

.title-bar {
    background-color: #000080;
    background: #000080;
    background: -webkit-linear-gradient(left, #000080, #1084d0);
    background: -moz-linear-gradient(left, #000080, #1084d0);
    background: linear-gradient(to right, #000080, #1084d0);
    padding: 4px 8px;
    color: #ffffff;
    font-weight: bold;
    font-size: 13px;
    line-height: 1.2;
}

.window-body {
    background-color: #ffffff;
    border-top: 2px solid #808080;
    border-left: 2px solid #808080;
    border-right: 2px solid #ffffff;
    border-bottom: 2px solid #ffffff;
    padding: 15px;
    color: #000000;
    font-size: 14px;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.profile-text {
    margin-bottom: 15px;
    line-height: 1.4;
    word-wrap: break-word;
}

.window-buttons {
    text-align: center;
}

@media screen and (max-width: 700px) {
    body {
        padding-top: 62px;
    }

    .site-header {
        padding: 8px 5px;
    }

    .nav-list {
        text-align: center;
    }

    .nav-item {
        display: inline;
        margin: 0 3px;
    }

    .nav-item a {
        font-size: 13px;
        padding: 4px 7px;
    }

    h1 {
        font-size: 30px;
        margin-top: 18px;
    }

    .container {
        width: auto;
        margin: 20px 10px 0 10px;
    }

    .window-left,
    .window-right,
    .main-content,
    .window {
        float: none;
        width: auto;
        margin-left: 0;
    }

    .window-left,
    .window-right,
    .window {
        margin-bottom: 20px;
    }

    .main-content {
        margin-bottom: 0;
    }

    .window-body {
        padding: 12px;
        font-size: 14px;
    }

    .profile-text {
        margin-bottom: 10px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
}

@media screen and (max-width: 360px) {
    body {
        padding-top: 58px;
    }

    .nav-item {
        margin: 0 1px;
    }

    .nav-item a {
        font-size: 12px;
        padding: 3px 5px;
    }

    h1 {
        font-size: 26px;
    }

    .container {
        margin-left: 6px;
        margin-right: 6px;
    }

    .window-body {
        padding: 10px;
    }
}