/* 画面全体 */
html {
    /* Enable smooth scrolling for a elements */
    scroll-behavior: smooth;
    height: 100%;
}

body {
    margin: 0;
    /* headerをstickyで固定され続けさせるため */
    min-height: 100%;
}

.BodyContainer {
    /* footerを常に最下段に表示させるため */
    display: grid;
    grid-template-rows: auto 1fr;
}

.BodyContainer header {
    width: 100%;
    background-color: #fff;
    padding: 20px 0px 10px 0px;
    position: sticky;
    top: 0;
    left: 0;
    margin: 0;
    height: 81px;
    border-bottom: 1px solid #ccc;
    z-index: 999;
}

.BodyContainer main {
    width: 100%;
    background-color: var(--Blue1);
    padding: 20px 10px 20px 10px;
    padding: 0;
}

.BodyContainer footer {
    width: 100%;
    background-color: var(--Blue14);
    color: #fff;
    padding: 30px 10px 20px 10px;
}

.Copyright {
    font-size: 12px;
    font-weight: 300;
    text-align: center;
}

/* セクション */

.WideSection {
    width: 100%;
    padding: 20px 0px 30px 0px;
}

.HeaderSection {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.CenterSection {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

.RowSection{
    display: flex;
    flex-wrap: wrap;
    column-gap: 40px;
    row-gap: 10px;
}

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

.TwoColumnSection {
    display: grid;
    gap: 30px;
    grid-template-columns: 1fr 1fr;
}

.SideBySideSection_MainBlock {
    flex-basis: 500px;
    flex-grow: 2;
    display: grid;
    gap: 10px;
    height: fit-content;
}
.SideBySideSection_SideBlock {
    flex-basis: 300px;
    flex-grow: 1;
    min-width: 270px;
    height: fit-content;
}

.CenterContainer {
    width: 100%;
    max-width: 700px;
    margin: auto;
}

/* フォームパーツ */

.FormContainer {
    width: 100%;
    display: grid;
    gap: 20px;
}

.CenterFormContainer {
    width: 100%;
    max-width: 700px;
    margin: auto;
}

.CenterForm {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.CenterForm .Label {
    font-size: 15px;
    color: #777;
}

.CenterForm .Notice {
    text-align: right;
    font-size: 14px;
    color: var(--SubTextColor);
}

.FormMessage {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 700px;
    margin: auto;
    padding: 15px;
    border-radius: 5px;
}

.FormMessage.Success {
    border: 1px solid var(--Blue11);
    color: var(--Blue11);
}

.FormMessage.Failure {
    border: 1px solid var(--NoticeColor);
    color: var(--NoticeColor);
}

/* 汎用レイアウト */
.GridSection {
    display: grid;
    gap: 20px;
}