/*
 * STUDIO THINK 管理画面 共通レスポンシブCSS
 *
 * 方針
 * - Bootstrap 5 の標準レイアウトを基本にする
 * - 各ページですでに用意されているスマホ用表示を壊さない
 * - 固定幅・横はみ出し・ボタンの縦位置ずれを共通側で防ぐ
 * - 表をJavaScriptで強制的に別レイアウトへ変換しない
 */

html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

img,
svg,
video,
canvas {
    max-width: 100%;
    height: auto;
}

.main-content,
.content-wrapper,
.content-wrapper > *,
.content-wrapper .card,
.content-wrapper .card-body,
.content-wrapper .card-header,
.content-wrapper .row,
.content-wrapper [class^="col-"],
.content-wrapper [class*=" col-"] {
    min-width: 0;
}

.content-wrapper .table-responsive {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

.content-wrapper .table-responsive > .table {
    margin-bottom: 0;
}

.content-wrapper form,
.content-wrapper .form-control,
.content-wrapper .form-select,
.content-wrapper textarea,
.content-wrapper .input-group {
    max-width: 100%;
}

.content-wrapper .input-group > .form-control,
.content-wrapper .input-group > .form-select,
.content-wrapper .input-group > .form-floating {
    min-width: 0;
}

/* ボタン内のアイコンと文字を常に縦中央へ揃える */
.content-wrapper .btn,
.top-navbar .btn,
.sidebar .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    line-height: 1.25;
}

.content-wrapper .btn i,
.top-navbar .btn i,
.sidebar .btn i {
    line-height: 1;
}

/* ボタン・ボタングループ内で内容が押しつぶされないようにする */
.content-wrapper .btn-group,
.content-wrapper .btn-group-vertical {
    max-width: 100%;
}

/* -------------------------------------------------------------
   タブレット
   ------------------------------------------------------------- */
@media (max-width: 991.98px) {
    .content-wrapper {
        width: 100%;
        max-width: 100%;
    }

    .content-wrapper .card {
        max-width: 100%;
    }

    .content-wrapper .table th,
    .content-wrapper .table td {
        word-break: break-word;
    }
}

/* -------------------------------------------------------------
   スマートフォン
   ------------------------------------------------------------- */
@media (max-width: 767.98px) {
    /* 上部ナビゲーションも端末幅に収める */
    .top-navbar {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        padding-left: .75rem !important;
        padding-right: .75rem !important;
    }

    .top-navbar > div {
        min-width: 0;
    }

    .top-navbar > div:last-child {
        flex-shrink: 0;
    }

    .top-navbar .btn {
        white-space: nowrap;
    }

    /* 固定サイドバーを開いたとき以外は本文だけを使う */
    .main-content {
        width: 100%;
        max-width: 100%;
        margin-left: 0 !important;
    }

    .content-wrapper {
        width: 100%;
        max-width: 100%;
        padding: .875rem;
    }

    /* ページ上部の「タイトル + 新規登録」などを整列 */
    .content-wrapper > .d-flex.justify-content-between.align-items-center {
        align-items: center !important;
        gap: .75rem;
    }

    .content-wrapper > .d-flex.justify-content-between.align-items-center > h1,
    .content-wrapper > .d-flex.justify-content-between.align-items-center > div:first-child {
        min-width: 0;
        flex: 1 1 auto;
    }

    .content-wrapper > .d-flex.justify-content-between.align-items-center > a,
    .content-wrapper > .d-flex.justify-content-between.align-items-center > div:last-child {
        flex: 0 0 auto;
    }

    .content-wrapper h1.h3 {
        font-size: 1.2rem;
        line-height: 1.35;
    }

    .content-wrapper h1.h3 .badge {
        vertical-align: middle;
    }

    /* Bootstrapのbtn-smを過剰に大きくせず、指で押せる最低限の高さを確保 */
    .content-wrapper .btn-sm,
    .top-navbar .btn-sm {
        min-height: 38px;
    }

    .content-wrapper .btn:not(.btn-sm),
    .top-navbar .btn:not(.btn-sm) {
        min-height: 44px;
    }

    .content-wrapper .btn {
        white-space: normal;
    }

    /* 横並びの操作ボタンは、文字とアイコンを中央に揃える */
    .content-wrapper .btn-group {
        flex-wrap: wrap;
    }

    .content-wrapper .btn-group > .btn {
        min-width: 44px;
    }

    /* フォーム部品を画面幅からはみ出させない */
    .content-wrapper .form-control,
    .content-wrapper .form-select,
    .content-wrapper textarea,
    .content-wrapper input[type="file"] {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        font-size: 16px;
    }

    .content-wrapper .input-group {
        width: 100%;
        max-width: 100%;
    }

    .content-wrapper .input-group .btn {
        flex: 0 0 auto;
    }

    /* フィルター等のフォームを1列にして操作しやすくする */
    .content-wrapper form.row > [class^="col-"],
    .content-wrapper form.row > [class*=" col-"] {
        min-width: 0;
    }

    /* 表は既存の各ページのスマホ表示を優先。
       個別のスマホ表示がない表だけ、必要に応じて横スクロールできる。 */
    .content-wrapper .table-responsive {
        max-width: 100%;
        border-radius: .25rem;
    }

    .content-wrapper .table-responsive > table.table {
        max-width: 100%;
    }

    /* 表内の長い文章が画面外へ飛び出さないようにする */
    .content-wrapper .table td,
    .content-wrapper .table th {
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    /* ただし日付・時間など、短い情報は不要に縦割りしない */
    .content-wrapper .table .text-nowrap {
        white-space: nowrap !important;
        overflow-wrap: normal;
        word-break: normal;
    }

    /* カード内の余白を少しだけ最適化 */
    .content-wrapper .card-header {
        min-width: 0;
    }

    /* rowのマイナスマージンによる横はみ出しを抑える */
    .content-wrapper .row {
        max-width: 100%;
    }

    /* チェックボックスのタップ領域 */
    .content-wrapper .form-check-input {
        width: 1.25rem;
        height: 1.25rem;
        margin-top: .15rem;
    }

    /* カレンダー等の横長コンテンツは無理に潰さずスクロール */
    .content-wrapper .calendar-wrapper,
    .content-wrapper .table-responsive:has(> table.calendar-table) {
        -webkit-overflow-scrolling: touch;
    }
}

/* -------------------------------------------------------------
   小型スマートフォン
   ------------------------------------------------------------- */
@media (max-width: 575.98px) {
    .content-wrapper {
        padding: .75rem;
    }

    .content-wrapper > .d-flex.justify-content-between.align-items-center {
        gap: .625rem;
    }

    .content-wrapper > .d-flex.justify-content-between.align-items-center > a,
    .content-wrapper > .d-flex.justify-content-between.align-items-center > div:last-child > .btn {
        flex-shrink: 0;
    }

    .content-wrapper .card-body {
        padding: .875rem;
    }

    .content-wrapper .card-header {
        padding: .75rem .875rem;
    }

    .content-wrapper .btn-sm {
        min-height: 38px;
        padding: .4rem .7rem;
    }
}

/* -------------------------------------------------------------
   共通レイアウトの最終調整
   -------------------------------------------------------------
   Bootstrap の .row は左右に負のマージンを持つため、
   ページごとのCSSと組み合わさった際に「カードだけ左寄り」
   「右側に不自然な空白」が発生することがある。
   ここでは管理画面全体で、画面が狭くなった時の基準を統一する。
*/

/* 管理画面本文は常に自分の表示領域を基準にする */
.main-content,
.content-wrapper {
    max-width: 100%;
    min-width: 0;
}

/*
 * PCではサイドバー分を除いた幅だけを本文に割り当てる。
 * width: 100% + margin-left: 240px の組み合わせになると、
 * 本文が「画面幅 + サイドバー幅」になり、右端が見切れてしまう。
 * instructor / 管理画面の共通レイアウトで発生するため、ここで統一。
 */
@media (min-width: 992px) {
    /*
     * サイドバーは position: fixed のため通常のレイアウト幅には含まれない。
     * 本文を「画面全体 - サイドバー幅」に明示して、
     * 画面右端からはみ出さないようにする。
     */
    .main-content {
        display: block;
        box-sizing: border-box !important;
        width: calc(100% - var(--sidebar-width, 240px)) !important;
        max-width: calc(100% - var(--sidebar-width, 240px)) !important;
        margin-left: var(--sidebar-width, 240px) !important;
        margin-right: 0 !important;
        min-width: 0 !important;
    }

    .content-wrapper {
        box-sizing: border-box !important;
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }
}

@media (max-width: 991.98px) {
    .main-content {
        width: 100%;
        max-width: 100%;
        margin-left: 0 !important;
    }
}

.content-wrapper {
    overflow-x: hidden;
}

/* row 自体が親の外側へ飛び出さないようにする */
.content-wrapper > .row,
.content-wrapper > form > .row,
.content-wrapper .row {
    min-width: 0;
}

/* タブレット以下：
   col-lg-* は Bootstrap 本来の仕様どおり1列にする。
   ページ固有CSSの影響で幅が残るケースもここで統一して防ぐ。 */
@media (max-width: 991.98px) {
    .content-wrapper > .row,
    .content-wrapper > form > .row {
        width: 100%;
        max-width: 100%;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .content-wrapper > .row > [class*="col-lg-"],
    .content-wrapper > form > .row > [class*="col-lg-"],
    .content-wrapper .row > [class*="col-lg-"] {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
        min-width: 0 !important;
    }

    .content-wrapper > .card,
    .content-wrapper > form > .card {
        width: 100%;
        max-width: 100%;
    }
}

/* スマートフォン：
   すべての本文用 row の負の左右マージンを無効化。
   これにより「画面左側に寄ったカード」「右側だけ余るカード」を防ぐ。 */
@media (max-width: 767.98px) {
    .content-wrapper {
        padding-left: .75rem;
        padding-right: .75rem;
    }

    .content-wrapper .row {
        width: 100%;
        max-width: 100%;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .content-wrapper .row > [class*="col-"] {
        min-width: 0;
    }

    .content-wrapper form {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .content-wrapper .card,
    .content-wrapper .alert,
    .content-wrapper .form-section {
        max-width: 100%;
    }

    /* 長いURL・メールアドレス・ファイル名等で
       カード全体が押し広げられるのを防止 */
    .content-wrapper a,
    .content-wrapper code,
    .content-wrapper pre,
    .content-wrapper .text-break {
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    /* flex/grid の子要素が内容幅を維持して横にはみ出すケースを防止 */
    .content-wrapper .d-flex > *,
    .content-wrapper .row > * {
        min-width: 0;
    }

    /* ただしボタンそのものは内容を無理に縦割りしない */
    .content-wrapper .btn {
        min-width: 0;
    }
}

/* 極小スマホでも本文の左右余白を均等に保つ */
@media (max-width: 374.98px) {
    .content-wrapper {
        padding-left: .625rem;
        padding-right: .625rem;
    }
}



/* =========================================================
   スマホ：並び替えハンドルのタッチ操作
   長押し → ドラッグをしやすくする共通設定
   ========================================================= */
@media (max-width: 991.98px) {
    .ui-sortable .drag-handle,
    .ui-sortable .bi-grip-vertical,
    .ui-sortable .achievement-drag-handle,
    .ui-sortable .achievement-item-drag-handle {
        touch-action: none;
        -webkit-user-select: none;
        user-select: none;
        -webkit-touch-callout: none;
        cursor: grab;
    }

    .ui-sortable .drag-handle:active,
    .ui-sortable .bi-grip-vertical:active,
    .ui-sortable .achievement-drag-handle:active,
    .ui-sortable .achievement-item-drag-handle:active {
        cursor: grabbing;
    }

    /* 並び替え中のページスクロールによる横ズレ・選択を防止 */
    html.touch-sort-dragging,
    html.touch-sort-dragging body {
        overscroll-behavior: none;
    }

    .ui-sortable-helper {
        touch-action: none;
        -webkit-user-select: none;
        user-select: none;
    }
}

/* =========================================================
   管理画面共通：絞り込みパネル（/lesson 基準）
   ========================================================= */
.lesson-filter-panel {
    border: 1px solid #e3e8ef;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 4px 16px rgba(25, 42, 70, .045);
}
.lesson-filter-panel > .card-body {
    padding: 1rem;
}
.lesson-filter-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: .85rem;
}
.lesson-filter-title {
    display: flex;
    align-items: center;
    gap: .7rem;
    min-width: 0;
}
.lesson-filter-icon {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 11px;
    background: var(--bs-primary-bg-subtle, #e7f1ff);
    color: var(--bs-primary, #0d6efd);
    font-size: 1.05rem;
}
.lesson-filter-title strong {
    display: block;
    color: #253247;
    font-size: .98rem;
    line-height: 1.35;
}
.lesson-filter-title small {
    display: block;
    margin-top: .12rem;
    color: #7b8797;
    font-size: .76rem;
}
.lesson-filter-count {
    display: flex;
    align-items: baseline;
    gap: .22rem;
    flex: 0 0 auto;
    padding: .35rem .65rem;
    border-radius: 9px;
    background: #f4f6f9;
    color: #677487;
    font-size: .78rem;
}
.lesson-filter-count strong {
    color: #253247;
    font-size: 1.05rem;
}
.lesson-filter-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: .75rem;
}
.lesson-filter-fields.fields-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.lesson-filter-fields.fields-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.lesson-filter-fields.fields-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.lesson-filter-fields.fields-1 {
    grid-template-columns: minmax(0, 1fr);
}
.lesson-filter-field {
    min-width: 0;
}
.lesson-filter-panel .form-label {
    display: block;
    margin-bottom: .3rem !important;
    color: #4d5a6c;
    font-size: .78rem;
    font-weight: 700 !important;
}
.lesson-filter-panel .form-select,
.lesson-filter-panel .form-control,
.lesson-filter-panel .lesson-teacher-filter {
    width: 100%;
    min-height: 42px;
    border: 1px solid #dce2ea;
    border-radius: 9px;
    background-color: #fff;
    padding: .5rem .7rem;
    color: #2d394b;
    font-size: .88rem;
    box-shadow: none;
}
.lesson-filter-panel .form-select:focus,
.lesson-filter-panel .form-control:focus,
.lesson-filter-panel .lesson-teacher-filter:focus {
    border-color: var(--bs-primary, #0d6efd);
    box-shadow: 0 0 0 .2rem rgba(13, 110, 253, .14);
}
.lesson-filter-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: .55rem;
    margin-top: .85rem;
    padding-top: .8rem;
    border-top: 1px solid #edf0f4;
}
.lesson-filter-actions .btn {
    min-height: 40px;
    border-radius: 9px;
    padding: .5rem 1rem;
    font-size: .86rem;
    font-weight: 700;
}
@media (max-width: 991.98px) {
    .lesson-filter-fields.fields-4,
    .lesson-filter-fields.fields-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}
@media (max-width: 575.98px) {
    .lesson-filter-panel > .card-body { padding: .85rem; }
    .lesson-filter-topline { margin-bottom: .7rem; }
    .lesson-filter-title small { font-size: .7rem; }
    .lesson-filter-icon { width: 34px; height: 34px; }
    .lesson-filter-fields {
        grid-template-columns: 1fr !important;
        gap: .65rem .55rem;
    }
    .lesson-filter-panel .form-select,
    .lesson-filter-panel .form-control,
    .lesson-filter-panel .lesson-teacher-filter {
        min-height: 44px;
        font-size: .84rem;
    }
    .lesson-filter-actions {
        display: grid;
        grid-template-columns: 1fr auto;
    }
    .lesson-filter-actions .btn { padding: .55rem .75rem; }
}

/* =========================================================
   管理画面共通：SETTING GROUPS（/teacher/edit 基準）
   ========================================================= */
.site-settings-groups {
    margin-bottom: 1.25rem;
    padding: .9rem 1rem;
    border-radius: .5rem;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,.03);
    border: 1px solid #e3e8ef;
}
.site-settings-groups .site-settings-groups-heading {
    display: flex;
    align-items: baseline;
    gap: .6rem;
    margin-bottom: .65rem;
}
.site-settings-groups .site-settings-groups-label {
    font-size: .8rem;
    font-weight: 800;
    letter-spacing: .08em;
    color: #495057;
}
.site-settings-groups .site-settings-groups-help {
    font-size: .78rem;
    color: #6c757d;
}
.site-settings-groups .site-settings-groups-list {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}
.site-settings-groups .site-settings-group-button {
    appearance: none;
    border: 1px solid #dee2e6;
    background: #f8fafc;
    color: #495057;
    border-radius: 999px;
    padding: .45rem .85rem;
    font-size: .82rem;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    transition: background-color .15s ease, border-color .15s ease, color .15s ease, box-shadow .15s ease;
}
.site-settings-groups .site-settings-group-button:hover {
    border-color: #adb5bd;
    background: #edf2f7;
}
.site-settings-groups .site-settings-group-button.is-active {
    background: #0d6efd;
    border-color: #0d6efd;
    color: #fff;
    box-shadow: 0 2px 6px rgba(13, 110, 253, .25);
}
.group-card[hidden],
[data-group][hidden],
[data-master-group][hidden],
[data-site-setting-group][hidden],
[data-school-group][hidden],
[data-studio-group][hidden],
[data-event-group][hidden],
.teacher-edit-group-card[hidden] {
    display: none !important;
}

@media (max-width: 767.98px) {
    .site-settings-groups {
        margin-bottom: .85rem;
        padding: .75rem;
    }
    .site-settings-groups .site-settings-groups-heading {
        display: block;
        margin-bottom: .65rem;
    }
    .site-settings-groups .site-settings-groups-label {
        display: block;
        margin-bottom: .15rem;
    }
    .site-settings-groups .site-settings-groups-list {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: .4rem;
    }
    .site-settings-groups .site-settings-group-button {
        width: 100%;
        min-height: 42px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: .45rem .35rem;
        border-radius: .45rem;
        font-size: .78rem;
        text-align: center;
        white-space: normal;
    }
}
@media (min-width: 576px) and (max-width: 767.98px) {
    .site-settings-groups .site-settings-groups-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* =========================================================
   管理画面トップ：ダッシュボード統計カード
   ========================================================= */
.dashboard-stat-grid {
    display: grid;
    gap: .75rem;
    margin-bottom: 1.25rem;
}
/* 4枚の場合 */
.dashboard-stat-grid.cards-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
/* 3枚の場合 */
.dashboard-stat-grid.cards-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
/* 2枚の場合 */
.dashboard-stat-grid.cards-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
/* 1枚の場合 */
.dashboard-stat-grid.cards-1 {
    grid-template-columns: minmax(0, 1fr);
    max-width: 480px;
}

.dashboard-stat-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-decoration: none;
    border-radius: 12px;
    color: #fff;
    padding: 1rem;
    position: relative;
    overflow: hidden;
    transition: transform .15s ease, box-shadow .15s ease;
    min-height: 115px;
    box-shadow: 0 4px 12px rgba(0,0,0,.08);
}
.dashboard-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,.12);
    color: #fff;
}
.dashboard-stat-card .card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.dashboard-stat-card .card-label {
    font-size: .82rem;
    opacity: .9;
    font-weight: 600;
    line-height: 1.3;
}
.dashboard-stat-card .card-icon {
    font-size: 1.75rem;
    opacity: .45;
    line-height: 1;
}
.dashboard-stat-card .card-value-row {
    display: flex;
    align-items: baseline;
    gap: .4rem;
    margin-top: .4rem;
}
.dashboard-stat-card .card-value {
    font-size: 1.85rem;
    font-weight: 700;
    line-height: 1.1;
}
.dashboard-stat-card .card-badge {
    font-size: .75rem;
    font-weight: 700;
    padding: .15rem .45rem;
    border-radius: 6px;
    background: #fff;
}
.dashboard-stat-card .card-arrow {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: .75rem;
    opacity: .8;
    margin-top: auto;
    padding-top: .4rem;
}

@media (max-width: 991.98px) {
    .dashboard-stat-grid.cards-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .dashboard-stat-grid {
        gap: .5rem;
    }
    .dashboard-stat-grid.cards-4,
    .dashboard-stat-grid.cards-3,
    .dashboard-stat-grid.cards-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    /* 3枚の場合、スマホで3枚目を2列分に広げず、正方形の大きさを保つ */
    .dashboard-stat-grid.cards-3 .dashboard-stat-card:last-child {
        grid-column: 1 / 2;
    }
    .dashboard-stat-card {
        padding: .75rem .65rem;
        min-height: 100px;
        aspect-ratio: 1 / 0.95; /* 正方形に近い形状 */
    }
    .dashboard-stat-card .card-label {
        font-size: .75rem;
    }
    .dashboard-stat-card .card-icon {
        font-size: 1.35rem;
    }
    .dashboard-stat-card .card-value {
        font-size: 1.5rem;
    }
    .dashboard-stat-card .card-arrow {
        font-size: .7rem;
    }
}

/* =========================================================
   /lesson スマホ用操作ボタン修正
   ========================================================= */
.lesson-card-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
    justify-content: flex-end;
}
@media (max-width: 575.98px) {
    .lesson-card-actions {
        display: grid !important;
        grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
        gap: .35rem !important;
        width: 100% !important;
        margin-top: .4rem !important;
        padding-top: .4rem !important;
        border-top: 1px solid #edf0f4 !important;
    }
    .lesson-card-actions form {
        display: block !important;
        margin: 0 !important;
        min-width: 0 !important;
    }
    .lesson-card-actions .btn,
    .lesson-card-actions .lesson-action-btn {
        width: 100% !important;
        min-height: 38px !important;
        padding: .35rem .25rem !important;
        font-size: .78rem !important;
        font-weight: 600 !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        gap: .2rem !important;
        white-space: nowrap !important;
    }
}


/* =========================================================
   Studio Think 管理画面改善：絞り込み・ダッシュボード・レッスン操作
   管理画面の content-wrapper 内に限定し、公開画面への影響を防ぐ
   ========================================================= */

/* ダッシュボード統計カード：表示枚数に応じて自然に配置 */
.content-wrapper .dashboard-stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
    width: 100%;
}
.content-wrapper .dashboard-stat-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
    min-height: 150px;
    padding: 1rem;
    border-radius: .75rem;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(15, 23, 42, .08);
    transition: transform .15s ease, box-shadow .15s ease;
}
.content-wrapper .dashboard-stat-card:hover,
.content-wrapper .dashboard-stat-card:focus-visible {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 14px rgba(15, 23, 42, .14);
}
.content-wrapper .dashboard-stat-card .card-top,
.content-wrapper .dashboard-stat-card .card-value-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    min-width: 0;
}
.content-wrapper .dashboard-stat-card .card-label {
    min-width: 0;
    overflow-wrap: anywhere;
    font-weight: 700;
}
.content-wrapper .dashboard-stat-card .card-icon {
    flex: 0 0 auto;
    font-size: 1.65rem;
    opacity: .85;
}
.content-wrapper .dashboard-stat-card .card-value {
    font-size: clamp(1.6rem, 2.4vw, 2.25rem);
    line-height: 1.15;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}
.content-wrapper .dashboard-stat-card .card-badge {
    overflow-wrap: anywhere;
    font-size: .75rem;
}
.content-wrapper .dashboard-stat-card .card-arrow {
    margin-top: .65rem;
    font-size: .8rem;
    opacity: .9;
}
@media (min-width: 768px) and (max-width: 1199.98px) {
    .content-wrapper .dashboard-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 767.98px) {
    .content-wrapper .dashboard-stat-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: .65rem;
    }
    .content-wrapper .dashboard-stat-card {
        min-height: 0;
        aspect-ratio: 1 / .92;
        padding: .75rem;
        border-radius: .65rem;
    }
    .content-wrapper .dashboard-stat-card .card-icon { font-size: 1.3rem; }
    .content-wrapper .dashboard-stat-card .card-value { font-size: 1.65rem; }
    .content-wrapper .dashboard-stat-card .card-label { font-size: .88rem; }
    .content-wrapper .dashboard-stat-card .card-arrow { font-size: .72rem; }
}
@media (max-width: 359.98px) {
    .content-wrapper .dashboard-stat-grid { gap: .5rem; }
    .content-wrapper .dashboard-stat-card { padding: .6rem; }
    .content-wrapper .dashboard-stat-card .card-label { font-size: .8rem; }
}

/* lesson 一覧の3アクションを均一化。狭い幅では折り返しを許可 */
.content-wrapper .lesson-action-btn,
.content-wrapper .lesson-action-btn-group .btn {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .3rem;
    white-space: nowrap;
}
@media (max-width: 767.98px) {
    .content-wrapper .lesson-action-btn-group {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: .4rem;
        width: 100%;
    }
    .content-wrapper .lesson-action-btn-group > *,
    .content-wrapper .lesson-action-btn-group .btn,
    .content-wrapper .lesson-action-btn-group form {
        width: 100%;
        min-width: 0;
        margin: 0;
    }
    .content-wrapper .lesson-action-btn-group form .btn { width: 100%; }
}

/* 共通フィルターカード。既存の各ページのフォーム構造を壊さず入力幅を制御 */
.content-wrapper .lesson-filter-panel,
.content-wrapper .st-admin-filter {
    min-width: 0;
    max-width: 100%;
}
.content-wrapper .lesson-filter-panel .form-control,
.content-wrapper .lesson-filter-panel .form-select,
.content-wrapper .st-admin-filter .form-control,
.content-wrapper .st-admin-filter .form-select {
    min-width: 0;
    max-width: 100%;
}
@media (max-width: 767.98px) {
    .content-wrapper .lesson-filter-panel,
    .content-wrapper .st-admin-filter {
        padding: .85rem;
    }
    .content-wrapper .lesson-filter-panel .row,
    .content-wrapper .st-admin-filter .row {
        row-gap: .65rem;
    }
    .content-wrapper .lesson-filter-panel .btn,
    .content-wrapper .st-admin-filter .btn {
        min-height: 40px;
    }
}


/* =========================================================
   イベント編集：保存エリア
   この画面だけに適用し、既存フォームの保存動作は変更しない
   ========================================================= */
.event-edit-page .event-save-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: 1.25rem 0 1.5rem;
    padding: .9rem 1.1rem;
    border: 1px solid #e1e7ef;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(22, 34, 51, .045);
}
.event-edit-page .event-save-card__note {
    display: flex;
    align-items: center;
    gap: .55rem;
    min-width: 0;
    color: #697586;
    font-size: .86rem;
}
.event-edit-page .event-save-card__note i {
    flex: 0 0 auto;
    color: #7b8797;
    font-size: 1rem;
}
.event-edit-page .event-save-card__button {
    flex: 0 0 auto;
    min-height: 42px;
    padding: .6rem 1.4rem;
    border-radius: 9px;
    font-weight: 700;
    white-space: nowrap;
}
.event-edit-page .event-mobile-save-bar {
    display: none;
}
.event-edit-page .event-mobile-save-spacer {
    display: none;
}
@media (max-width: 991.98px) {
    .event-edit-page .event-save-card {
        margin-top: 1rem;
    }
}
@media (max-width: 767.98px) {
    .event-edit-page .event-save-card {
        display: none;
    }
    .event-edit-page .event-mobile-save-bar {
        position: fixed;
        z-index: 1030;
        right: 0;
        bottom: 0;
        left: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: .65rem .875rem calc(.65rem + env(safe-area-inset-bottom, 0px));
        border-top: 1px solid #e1e7ef;
        background: rgba(255, 255, 255, .97);
        box-shadow: 0 -4px 18px rgba(22, 34, 51, .09);
        backdrop-filter: blur(10px);
    }
    .event-edit-page .event-mobile-save-bar__button {
        width: 100%;
        max-width: 560px;
        min-height: 44px;
        border-radius: 10px;
        font-size: .95rem;
        font-weight: 700;
        box-shadow: 0 2px 5px rgba(13, 110, 253, .18);
    }
    .event-edit-page .event-mobile-save-spacer {
        display: block;
        height: calc(76px + env(safe-area-inset-bottom, 0px));
    }
}


/* Event-style save area shared by the requested admin edit screens */
.event-mobile-save-bar[data-multi-page-save="1"] { display:none; }
.event-mobile-save-spacer.is-visible { display:block; height:78px; }
@media (max-width: 767.98px) {
  .event-mobile-save-bar[data-multi-page-save="1"].is-visible { display:flex; position:fixed; left:0; right:0; bottom:0; z-index:1050; padding:12px 16px calc(12px + env(safe-area-inset-bottom)); background:rgba(255,255,255,.97); border-top:1px solid #e5e7eb; box-shadow:0 -4px 18px rgba(0,0,0,.08); }
  .event-mobile-save-bar[data-multi-page-save="1"] .event-mobile-save-bar__button { width:100%; min-height:48px; border-radius:10px; font-weight:700; }
  .event-mobile-save-spacer:not(.is-visible) { display:none; }
}
@media (min-width: 768px) {
  .event-mobile-save-spacer { display:none !important; }
  .event-mobile-save-bar[data-multi-page-save="1"] { display:none !important; }
}


/* 共通保存バー：最下部の入力項目が固定バーに隠れないようにする */
@media (max-width: 767.98px) {
  body.has-mobile-save-bar {
    padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px)) !important;
  }
  .event-mobile-save-spacer.is-visible {
    display: block;
    height: calc(96px + env(safe-area-inset-bottom, 0px));
  }
  .st-original-save-hidden { display: none !important; }

  /* サイドメニュー展開中は固定送信UIを一時的に非表示にしてメニューの確認・操作を最優先する */
  body.sidebar-open .event-mobile-save-bar,
  body.sidebar-open .event-mobile-save-spacer {
    display: none !important;
  }
}
@media (min-width: 768px) {
  .st-original-save-hidden { display: revert !important; }
}