header,
footer {
    text-align: center;
}

.pagination-controls {
    display: flex;
    column-gap: var(--gap-half);
    justify-content: center;
}

.pagination-controls a,
.pagination-controls span {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1;
    border: 1px solid var(--c-mid-gray);
    width: 3rem;
    height: 3rem;
    font-size: 1rem;
    font-weight: 600;
}

.pagination-info {
    margin: var(--gap-single) 0;
}

.pagination-controls a:focus,
.pagination-controls a:hover {
    background: var(--c-light);
}

.pagination-controls .current {
    background: var(--c-light);
}

.pagination-controls .disable {
    color: var(--c-gray);
}

main h1 {
    font-size: 1.6rem;
    letter-spacing: .07em;
}

.main-header,
.main-footer {
    text-align: center;
}

main .card_holder {
    margin-bottom: 4rem;
}

footer {
    margin-top: var(--gap-double);
}

/* フィルター背景暗転用オーバーレイ */
.search-filter .filter-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease;
}

.search-filter #flag-filter-container-open:checked ~ .filter-overlay {
    opacity: 1;
    visibility: visible;
}

.search-filter #flag-filter-container-open {
    position: absolute;
    left: -50vw;
}

/*---- 検索コンテナ開閉 ここから ----*/
.search-filter .filter-container {
    display: grid;
    grid-template-rows: 0fr; /* 初期値: 0 (閉) */
    transition: 1s cubic-bezier(0.19, 1, 0.22, 1); /* easeOutExpo */
    background: var(--c-light-gray);
    border-width: 0 1px 1px 1px;
    border-style: solid;
    border-color: var(--c-mid-gray);
    position: relative;
    z-index: 11; /* オーバーレイより上 */
}

.search-filter .filter-form {
    overflow: hidden;
}

.search-filter #flag-filter-container-open:checked ~ .filter-container-wrapper .filter-container {
    grid-template-rows: 1fr; /* 1fr (開) */
}
/*---- ここまで 検索コンテナ開閉 ----*/

.search-filter .layout-resetter .group {
    display: flex;
    flex-wrap: wrap;
    column-gap: var(--gap-single);
    flex-direction: row;
    position: relative;
    padding-right: var(--gap-single);
}

.search-filter .filter-group.multi-col dt,
.search-filter .filter-group.multi-col dd.is-main {
    display: block;
    float: none;
}

.search-filter dt {
    border-bottom: 1px solid var(--c-mid-gray);
    margin: 0 0 .5rem 0;
    padding: 0 0 .5rem 0;
}

.search-filter dd {
    margin: 0;
}

.search-filter button:hover,
.search-filter .btn-reset:hover {
    background: #fff;
}


/*==================== mobile ====================*/
@media all and (max-width: 599px) {

    header {
        padding-top: 3rem;
    }

    header .site_name {
        display: block;
        margin: var(--gap-half) 0;
        font-size: 1.6rem;
        letter-spacing: .07em;
        font-weight: 700;
    }

    .header-auth {
        position: absolute;
        z-index: 2;
        top: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
        width: calc(100% - var(--gap-thin));
        font-family: sans-serif;
    }

    .header-auth .inner {
        display: flex;
        justify-content: space-between;
        margin: 0 auto var(--gap-half) auto;
        width: 100%;
        box-sizing: border-box;
        padding: var(--gap-half) var(--gap-thin);
        border-radius: 0 0 0 2em;
        background: var(--c-gray);
        color: #fff;
    }

    .header-auth .inner > * {
        display: flex;
        align-items: center;
    }

    .header-auth .user-name {
        display: inline-block;
        width: 16em;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-right: var(--gap-half);
    }

    .header-auth .user-name::before {
        display: inline-block;
        margin-right: var(--gap-half);
        content: "ログイン中"
    }

    .search-filter {
        position: relative;
        padding: var(--gap-single) 0 var(--gap-thick) 0;
        overflow: hidden;
    }

    .search-filter select {
        min-height: 2rem;
    }

    .search-filter .filter-container-wrapper {
        margin-top: var(--gap-double);
        box-shadow: 0rem 1rem .75em var(--c-mid-gray);
        position: relative;
    }

    .search-filter .btn-filter-container-open {
        display: block;
        position: relative;
        z-index: 11; /* オーバーレイより上 */
        text-align: center;
        padding: var(--gap-half);
        font-size: var(--fz-h3);
        cursor: pointer;
        border-width: 1px 1px 0 1px;
        border-style: solid;
        border-color: var(--c-mid-gray);
        transition: background-color .2s cubic-bezier(0.19, 1, 0.22, 1);
        background: var(--c-pale-gray);
    }

    .search-filter .btn-filter-container-open:active {
        background: var(--c-light);
    }

    .search-filter .filter-section {
        display: flex;
        flex-direction: column;
        grid-template-columns: 4fr repeat(2, 1fr);
        column-gap: var(--gap-single);
        padding: 0 var(--gap-single);
    }
    
    .search-filter .filter-submit {
        display: flex;
        flex-direction: column;
        row-gap: var(--gap-single);
        justify-content: center;
        align-items: center;
        margin: var(--gap-single);
        padding-top: var(--gap-single);
        border-top: 1px solid var(--c-mid-gray);
    }

    .search-filter .per-page-selector {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        column-gap: 0.5rem;
        font-weight: bold;
    }

    .search-filter .per-page-selector > * {
        white-space: norrap;
    }

    .search-filter .per-page-selector input[type="number"] {
        width: 4rem;
        padding: 0.2rem;
        border: 1px solid var(--c-mid-gray);
        border-radius: 4px;
        text-align: center;
    }

    .search-filter .per-page-selector input[type="number"]:disabled {
        background-color: var(--c-pale-gray);
        color: var(--c-mid-gray);
        cursor: not-allowed;
    }

    .search-filter .filter-submit .check-all,
    .search-filter .filter-submit .check-unchecked {
        font-weight: bold;
        cursor: pointer;
        display: flex;
        align-items: center;
        column-gap: .5rem;
    }

    .search-filter .btn-search {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        box-sizing: border-box;
        width: 100%;
        min-height: 4rem;
        margin: var(--gap-thin) 0;
        border: 1px solid var(--c-mid-gray);
        background-color: var(--c-pale-gray);
        font-size: 1rem;
        cursor: pointer;
    }
    
    .search-filter .btn-reset {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        box-sizing: border-box;
        min-height: 2rem;
        padding: var(--gap-little) var(--gap-thin);
        border: 1px solid var(--c-mid-gray);
        background-color: var(--c-pale-gray);
        font-size: 1rem;
        cursor: pointer;
    }

    .search-filter .print-menu {
        display: grid;
        grid-template-columns: 2fr 2fr;
        gap: var(--gap-little);
        margin-bottom: var(--gap-half);
        font-family: sans-serif;
    }

    .search-filter .print-menu .unit-title {
        grid-column: 1 / 3;
        font-weight: 500;
    }

    .search-filter .print-menu * {
        font-size: var(--fz-std);
    }

    .search-filter .filter-group.multi-col dd {
        margin: 1.5vw 0;
        display: block;
        box-sizing: border-box;
        min-width: 25%;
        float: left;
        white-space: nowrap;
    }

}

/*==================== pc_tablet ====================*/
@media all and (min-width: 600px) {

    header {
        padding-top: 2.5rem;
    }

    header .site_name {
        display: block;
        margin: var(--gap-half);
        font-size: 2.4rem;
        letter-spacing: .07em;
        font-weight: 600;
    }

    .header-auth {
        position: absolute;
        z-index: 2;
        top: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        font-family: sans-serif;
    }

    .header-auth .inner {
            margin: 0 auto var(--gap-half) auto;
            padding: var(--gap-half) var(--gap-thick);
            border-radius: 0 0 0 2em;
            background: var(--c-gray);
            color: #fff;
        }

        .header-auth .inner > * {
            display: inline-block;
            vertical-align: middle;
        }
    
    .header-auth .user-name {
        margin-right: var(--gap-half);
    }

    .header-auth .user-name::before {
        display: inline-block;
        margin-right: var(--gap-half);
        content: "ログイン中"
    }

    .search-filter {
        position: relative;
        padding: var(--gap-single) 5vw var(--gap-thick) 5vw;
        overflow: hidden;
    }

    .search-filter .filter-container-wrapper {
        box-shadow: 0rem 1rem .75em var(--c-mid-gray);
        position: relative;
    }

    .search-filter .btn-filter-container-open {
        display: block;
        position: relative;
        z-index: 11; /* オーバーレイより上 */
        text-align: center;
        padding: var(--gap-single);
        font-size: var(--fz-h3);
        cursor: pointer;
        border-width: 1px 1px 0 1px;
        border-style: solid;
        border-color: var(--c-mid-gray);
        transition: background-color .2s cubic-bezier(0.19, 1, 0.22, 1);
        background: var(--c-pale-gray);
    }

    .search-filter .btn-filter-container-open:hover {
        background: var(--c-light);
    }

    .search-filter .filter-section {
        display: grid;
        grid-template-columns: 4fr repeat(2, 1fr);
        column-gap: var(--gap-single);
        padding: 0 var(--gap-single);
    }

    .search-filter .filter-submit {
        display: flex;
        flex-wrap: wrap;
        column-gap: var(--gap-thick);
        row-gap: var(--gap-single);
        justify-content: center;
        align-items: center;
        margin: var(--gap-single);
        padding-top: var(--gap-single);
        border-top: 1px solid var(--c-mid-gray);
    }

    .search-filter .per-page-selector {
        display: flex;
        align-items: center;
        column-gap: 0.5rem;
        font-weight: bold;
    }

    .search-filter .per-page-selector input[type="number"] {
        width: 4rem;
        padding: 0.2rem;
        border: 1px solid var(--c-mid-gray);
        border-radius: 4px;
        text-align: center;
    }

    .search-filter .per-page-selector input[type="number"]:disabled {
        background-color: var(--c-pale-gray);
        color: var(--c-mid-gray);
        cursor: not-allowed;
    }

    .search-filter .filter-submit .check-all {
        font-weight: bold;
        cursor: pointer;
        display: flex;
        align-items: center;
        column-gap: .25rem;
    }

    .search-filter button,
    .search-filter .btn-reset {
        box-sizing: border-box;
        min-width: 15%;
        min-height: 2rem;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border: 1px solid var(--c-mid-gray);
        background-color: var(--c-pale-gray);
        font-size: 1rem;
        cursor: pointer;
    }

    .search-filter .print-menu {
        display: flex;
        justify-content: flex-end;
        column-gap: var(--gap-half);
        margin-bottom: var(--gap-half);
        font-family: sans-serif;
    }

    .search-filter .print-menu strong {
        display: flex;
        flex-direction: column;
        justify-content: center;
        font-weight: 500;
    }

    .search-filter .filter-group.multi-col dd {
        display: block;
        box-sizing: border-box;
        min-width: 25%;
        float: left;
        white-space: nowrap;
    }

    main .card_holder {
        grid-template-columns: 1fr 1fr;
    }
}

/*==================== pc_wide ====================*/
@media all and (min-width: 1200px) {
    main .card_holder {
        grid-template-columns: 1fr 1fr 1fr;
    }
}