/* ==============================================
   フォームページ ベーススタイル
   ============================================== */

/* フォームページ背景 */
.form-page-body {
    background-color: #f4f6fb;
}

/* フォームコンテナ */
.form-shell {
    background: #ffffff;
    border: 1px solid #d6e3ff;
    border-radius: 14px;
    padding: 28px 26px;
    box-shadow: 0 10px 30px rgba(35, 71, 140, 0.08);
}

/* フォームタイトル */
.form-headline {
    border-left: 6px solid #2c7be5;
    padding-left: 14px;
    margin-bottom: 10px;
    color: #1b3d74;
}

/* 必須マーク */
.required-mark {
    color: #dc3545;
    font-weight: bold;
}

/* テーブルヘッダー（ラベル） */
.table-form th,
.form-shell .table.table-bordered th {
    background: linear-gradient(120deg, #eef4ff 0%, #e3f2ff 100%);
    color: #1b3d74;
    width: 32%;
    border-color: #d8e5ff;
    vertical-align: top;
    padding: 20px 16px;
    font-weight: 600;
    border-bottom: 2px solid #d8e5ff;
    border-right: 2px solid #d8e5ff;
}

/* テーブルセル（入力欄） */
.table-form td,
.form-shell .table.table-bordered td {
    background: #fbfdff;
    border-color: #e6eefc;
    padding: 20px 16px;
    vertical-align: top;
}

/* テーブル行 */
.table-form tr,
.form-shell .table.table-bordered tr {
    border-bottom: 2px solid #e6eefc;
}

.table-form tr:last-child,
.form-shell .table.table-bordered tr:last-child {
    border-bottom: none;
}

/* 偶数行の縞模様 */
.table-form tr:nth-child(even) td,
.form-shell .table.table-bordered tr:nth-child(even) td {
    background: #f6f9ff;
}

/* アラート */
.table-form .alert-info {
    background: #e9f3ff;
    color: #1b3d74;
    border-color: #cddff9;
}

/* チェックボックス間隔 */
.form-shell .table.table-bordered .form-check {
    margin-bottom: 12px;
}

.form-shell .table.table-bordered .form-check:last-child {
    margin-bottom: 0;
}

.form-shell .table.table-bordered .mb-2 {
    margin-bottom: 12px !important;
}

/* エラーメッセージ */
.form-shell .table.table-bordered .error {
    margin-top: 8px;
    color: #dc3545;
    font-size: 0.9rem;
}

/* テーブル全体 */
.form-shell .table.table-bordered {
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

/* ==============================================
   フォームフィールドグループ
   ============================================== */

/* フォームフィールドグループの余白統一 */
.form-field-group {
    margin-bottom: 3rem;
    /* 各設問間の間隔を拡大 */
}

/* 名前フィールドグループのモバイル時ギャップ */
.name-field-group .row {
    row-gap: 0.5rem;
}

/* モバイル最適化 */
@media (max-width: 767px) {
    .form-field-group {
        margin-bottom: 2.5rem;
        /* モバイルでも間隔を確保 */
    }
}

/* フィールドグループ内の余白調整 */
.form-field-group:last-child {
    margin-bottom: 0;
    /* 最後のフィールドは余白なし */
}

/* 入力フィールドのオフホワイト背景 */
.form-control,
.form-select {
    background-color: #fafafa;
    /* オフホワイト背景 */
}

/* フォーカス時のスタイル */
.form-control:focus,
.form-select:focus {
    background-color: #ffffff;
    /* フォーカス時は白背景で強調 */
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* 無効化されたフィールド */
.form-control:disabled,
.form-select:disabled {
    background-color: #e9ecef;
    /* 無効化時はより濃いグレー */
    opacity: 1;
}

/* エラー時のスタイル */
.form-control.is-invalid,
.form-select.is-invalid {
    background-color: #fff5f5;
    /* エラー時は薄い赤背景 */
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    background-color: #ffffff;
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

/* フィールド直下のエラーメッセージ（長文でもレイアウト崩れを防ぐ） */
.invalid-feedback {
    display: block;
    margin-top: 0.5rem;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
    max-width: 100%;
}

/* ==============================================
   PC/SP 表示切り替えクラス
   ============================================== */
.sp-only {
    display: none;
}

.pc-only {
    display: block;
}

/* ==============================================
   スマートフォン向けレスポンシブ対応 (768px以下)
   ============================================== */
@media (max-width: 768px) {
    /* --- PC/SP表示切り替え --- */
    .sp-only {
        display: block;
    }

    .pc-only {
        display: none;
    }

    span.sp-only,
    a.sp-only {
        display: inline;
    }

    span.pc-only,
    a.pc-only {
        display: none;
    }

    /* --- 入力ページ (.form-shell) --- */
    .form-shell {
        padding: 16px 12px;
    }

    .form-shell .table.table-bordered,
    .form-shell .table.table-bordered thead,
    .form-shell .table.table-bordered tbody,
    .form-shell .table.table-bordered tr,
    .form-shell .table.table-bordered th,
    .form-shell .table.table-bordered td {
        display: block;
        width: 100% !important;
    }

    .form-shell .table.table-bordered th {
        border-bottom: none;
        border-right: none;
        padding: 12px 12px 8px 12px;
    }

    .form-shell .table.table-bordered td {
        padding: 8px 12px 16px 12px;
        border-top: none;
    }

    .form-shell .table.table-bordered tr {
        border-bottom: 1px solid #d8e5ff;
        margin-bottom: 8px;
    }

    .form-shell .table.table-bordered tr:last-child {
        border-bottom: none;
        margin-bottom: 0;
    }

    .form-shell .table.table-bordered input[style*="max-width"],
    .form-shell .table.table-bordered select[style*="max-width"] {
        max-width: 100% !important;
        width: 100% !important;
    }

    .form-shell .form-control,
    .form-shell .form-select {
        width: 100%;
    }

    .form-shell .d-flex.justify-content-between {
        flex-direction: column-reverse;
        gap: 12px;
    }

    .form-shell .d-flex.justify-content-between .btn,
    .form-shell .d-flex.justify-content-end .btn {
        width: 100%;
    }

    .form-headline {
        padding-left: 10px;
        border-left-width: 4px;
    }

    /* --- 確認画面 (.card) --- */
    .card .table.table-bordered,
    .card .table.table-bordered thead,
    .card .table.table-bordered tbody,
    .card .table.table-bordered tr,
    .card .table.table-bordered th,
    .card .table.table-bordered td {
        display: block;
        width: 100% !important;
    }

    .card .table.table-bordered th {
        border-bottom: none;
        padding: 12px 12px 6px 12px;
        background: #f8f9fa;
    }

    .card .table.table-bordered td {
        padding: 6px 12px 16px 12px;
        border-top: none;
    }

    .card .table.table-bordered tr {
        border-bottom: 1px solid #dee2e6;
    }

    .card .table.table-bordered tr:last-child {
        border-bottom: none;
    }

    .card .d-flex.justify-content-between {
        flex-direction: column-reverse;
        gap: 12px;
    }

    .card .d-flex.justify-content-between .btn {
        width: 100%;
    }

    .card .card-body {
        padding: 16px 12px;
    }
}