@import url("https://fonts.googleapis.com/css?family=Noto+Sans+JP:100,300,400,500,700,900");
:root {
    --light: rgba(242, 242, 242, 1);
    --deep: rgba(51, 51, 51, 1);
    --accent: rgba(69, 177, 203, 1);
}

* {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -o-box-sizing: border-box;
    -ms-box-sizing: border-box;
}
body {
    margin: 0;
    padding: 0;
    min-width: 1000px;

    font-family: "Noto Sans JP", Helvetica;
    font-size: 16px;
    line-height: 16px;
    font-style: normal;
    color: var(--deep);

    background-color: var(--light);
    display: flex;
    justify-content: center;
}

h1, h2, h3 { margin: 0; }
li { list-style-type: none; }
a {
    text-decoration: none;
    color: var(--accent);
}

#body-wrap {
    display: flex;
    position: relative;
    width: 100%;
}

#side {
    color: var(--light);
    font-weight: 300;
    background-color: var(--deep);
    flex-basis: 320px;
}

#main {
    background-color: var(--light);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    flex-basis: 680px;
    padding: 0 20px 0 40px;
}

.item-wrap {
    margin: 0;
    padding: 0;
}