/* ==================================
   共通設定
   Version: 1.1.0 - 細長い画面対応
   ================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden; /* 横スクロール完全防止 */
    width: 100%;
}

body {
    font-family: "UD Digi Kyokasho N-R", "UDデジタル教科書体", "Yu Gothic", "Hiragino Sans", sans-serif;
    background: #f5f5f5;
    color: #333;
    overflow-x: hidden; /* 横スクロール防止 */
    width: 100%;
    position: relative;
}

.hidden {
    display: none !important;
}

/* ==================================
   設定画面のスタイル
   ================================== */
#settings-screen {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* 上揃え */
    padding: 40px 20px; /* 上下にゆとり */
}

/* スマホでは中央揃え */
@media (max-width: 768px) {
    #settings-screen {
        align-items: center;
        padding: 20px 10px;
    }
}

/* 細長い画面対応 */
@media (max-width: 480px) {
    #settings-screen {
        padding: 10px 5px;
    }
}

.container {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    max-width: 1400px; /* 横幅を広げる */
    width: 100%;
    overflow-x: hidden; /* 横スクロール防止 */
}

/* スマホではpaddingを小さく */
@media (max-width: 768px) {
    .container {
        padding: 10px;
        border-radius: 8px;
        max-width: 100%;
        width: calc(100vw - 20px); /* 左右10pxずつマージン */
        margin: 0 auto;
    }
}

/* 細長い画面対応 */
@media (max-width: 480px) {
    .container {
        padding: 8px;
        width: calc(100vw - 10px); /* 左右5pxずつマージン */
        border-radius: 6px;
    }
}

h1 {
    font-size: 32px; /* 横表示用に大きく */
    color: #2c3e50;
    margin-bottom: 8px;
    text-align: center;
}

/* スマホでは小さく */
@media (max-width: 768px) {
    h1 {
        font-size: 24px;
    }
}

/* 細長い画面対応 */
@media (max-width: 480px) {
    h1 {
        font-size: 20px;
        margin-bottom: 6px;
    }
}

.subtitle {
    font-size: 14px;
    color: #7f8c8d;
    text-align: center;
    margin-bottom: 30px;
}

@media (max-width: 480px) {
    .subtitle {
        font-size: 12px;
        margin-bottom: 15px;
    }
}

/* 🆕 モード選択 */
.mode-selection {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    overflow-x: hidden; /* 横はみ出し防止 */
}

@media (max-width: 480px) {
    .mode-selection {
        padding: 10px;
        margin-bottom: 15px;
        border-width: 1px;
    }
}

.mode-label {
    display: block;
    font-size: 16px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 12px;
}

@media (max-width: 480px) {
    .mode-label {
        font-size: 14px;
        margin-bottom: 8px;
    }
}

.mode-options {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.mode-option {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 12px 20px;
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    transition: all 0.3s ease;
    flex: 1;
    min-width: 250px;
    word-wrap: break-word; /* テキスト折り返し */
}

/* スマホ対応：モード選択 */
@media (max-width: 768px) {
    .mode-option {
        min-width: 100%;
        flex: 1 1 100%;
    }
    
    .mode-selection {
        padding: 15px;
    }
}

/* 細長い画面対応 */
@media (max-width: 480px) {
    .mode-option {
        padding: 8px 12px;
        border-width: 1px;
    }
    
    .mode-selection {
        padding: 10px;
    }
}

.mode-option:hover {
    border-color: #3498db;
    background: #e3f2fd;
}

.mode-option input[type="radio"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.mode-option input[type="radio"]:checked + .mode-text {
    color: #3498db;
    font-weight: bold;
}

.mode-text {
    font-size: 15px;
    color: #495057;
    transition: all 0.3s ease;
    word-wrap: break-word; /* テキスト折り返し */
}

@media (max-width: 768px) {
    .mode-options {
        flex-direction: column;
        gap: 10px;
    }
    
    .mode-option {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    .mode-text {
        font-size: 13px;
    }
}

.settings-form {
    display: grid;
    grid-template-columns: 60% 40%; /* 左60% 右40% */
    gap: 30px;
    align-items: start;
}

/* 左側セクション */
.left-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-x: hidden; /* 横はみ出し防止 */
}

@media (max-width: 480px) {
    .left-section {
        gap: 12px;
    }
}

/* 右側セクション */
.right-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 20px; /* スクロール時に上部に固定 */
    overflow-x: hidden; /* 横はみ出し防止 */
}

@media (max-width: 480px) {
    .right-section {
        gap: 12px;
    }
}

/* 右側セクション内のボタンは幅100% */
.right-section .btn-primary {
    width: 100%;
}

/* スマホ対応: 768px未満は縦1列 */
@media (max-width: 768px) {
    .settings-form {
        grid-template-columns: 1fr;
    }
    
    .right-section {
        position: static; /* スマホでは固定しない */
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: #34495e;
    font-size: 15px;
    word-wrap: break-word; /* テキスト折り返し */
}

@media (max-width: 480px) {
    .form-group label {
        font-size: 13px;
    }
}

.range-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap; /* スマホで折り返し */
}

@media (max-width: 768px) {
    .range-inputs {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
}

.range-inputs input[type="number"] {
    width: 80px;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

@media (max-width: 768px) {
    .range-inputs input[type="number"] {
        width: 100%;
    }
}

.range-inputs input[type="number"]:focus {
    outline: none;
    border-color: #3498db;
}

.range-info {
    font-size: 13px;
    color: #7f8c8d;
}

input[type="text"],
input[type="date"] {
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
    width: 100%;
    max-width: 100%; /* はみ出し防止 */
    box-sizing: border-box;
}

input[type="text"]:focus,
input[type="date"]:focus {
    outline: none;
    border-color: #3498db;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .btn-primary {
        padding: 14px 28px;
        font-size: 16px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .btn-primary {
        padding: 12px 20px;
        font-size: 14px;
    }
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* ==================================
   漢字選択UI
   ================================== */
.kanji-selection-section {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    border: 2px solid #e0e0e0;
    overflow-x: hidden; /* 横はみ出し防止 */
}

/* スマホでは下にマージン */
@media (max-width: 768px) {
    .kanji-selection-section {
        margin-bottom: 30px;
    }
}

@media (max-width: 480px) {
    .kanji-selection-section {
        padding: 10px;
        border-width: 1px;
        margin-bottom: 15px;
    }
}

/* アコーディオンヘッダー */
.kanji-selection-header {
    margin: 0;
    font-size: 20px;
    color: #2c3e50;
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: white;
    border-radius: 8px;
    transition: background 0.3s;
}

@media (max-width: 768px) {
    .kanji-selection-header {
        font-size: 16px;
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .kanji-selection-header {
        font-size: 14px;
        padding: 8px;
    }
}
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.3s;
}

.kanji-selection-header:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

.toggle-icon {
    font-size: 16px;
    transition: transform 0.3s;
    color: #3498db;
}

.kanji-selection-header.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

/* アコーディオンコンテンツ */
.kanji-selection-content {
    max-height: 2000px; /* 十分な高さを確保 */
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
    opacity: 1;
    margin-top: 20px;
}

/* スマホでは高さを制限 */
@media (max-width: 768px) {
    .kanji-selection-content {
        max-height: 800px;
    }
}

.kanji-selection-content.collapsed {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

/* 🆕 検索バー */
.kanji-search-container {
    position: relative;
    margin-bottom: 15px;
}

.kanji-search-input {
    width: 100%;
    padding: 12px 40px 12px 15px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 8px;
    transition: all 0.3s;
    font-family: inherit;
}

.kanji-search-input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.kanji-search-input::placeholder {
    color: #95a5a6;
}

.search-clear-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border: none;
    background: #e74c3c;
    color: white;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    opacity: 0.8;
}

.search-clear-btn:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

/* タブ */
.kanji-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    overflow-x: auto; /* 横スクロール有効化 */
    padding-bottom: 5px;
}

.kanji-tab {
    flex: 1 1 auto; /* 柔軟なサイズ調整 */
    min-width: 140px; /* 最小幅を確保して6つ表示 */
    padding: 12px 20px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    color: #7f8c8d;
    white-space: nowrap; /* テキストを折り返さない */
}

/* スマホでは小さく */
@media (max-width: 768px) {
    .kanji-tab {
        min-width: 120px;
        padding: 10px 15px;
        font-size: 14px;
    }
}

.kanji-tab:hover {
    border-color: #3498db;
    color: #3498db;
}

.kanji-tab.active {
    background: #3498db;
    border-color: #3498db;
    color: white;
}

/* タブコンテンツ */
.kanji-tab-content {
    position: relative;
}

.kanji-tab-panel {
    display: none;
}

.kanji-tab-panel.active {
    display: block;
}

/* コントロールボタン */
.kanji-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.btn-control {
    padding: 8px 16px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-control:hover {
    border-color: #3498db;
    color: #3498db;
    background: #ecf6fd;
}

/* 漢字グリッド */
.kanji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 8px;
    max-height: 600px; /* 高さを広げる */
    overflow-y: auto;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    width: 100%;
    box-sizing: border-box;
}

/* スマホでは高さを制限 */
@media (max-width: 768px) {
    .kanji-grid {
        max-height: 400px;
        grid-template-columns: repeat(auto-fill, minmax(45px, 1fr));
        gap: 6px;
        padding: 10px;
    }
}

/* 漢字アイテム */
.kanji-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 8px;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    background: white;
    user-select: none;
    min-height: 70px;
}

.kanji-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-color: #aaa;
}

.kanji-item.selected {
    background: #e8f5e9;
    border-color: #4caf50;
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

.kanji-item.selected .kanji-char {
    color: #2e7d32;
    font-weight: 700;
}

/* チェックマーク */
.kanji-item .checkmark {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    background: #4caf50;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: bold;
    color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.kanji-item.selected .checkmark {
    display: flex;
}

/* 漢字文字 */
.kanji-char {
    font-size: 24px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 2px;
}

/* 🆕 検索ハイライトエフェクト */
@keyframes searchPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(241, 196, 15, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 15px rgba(241, 196, 15, 0);
    }
}

.kanji-item.search-highlight {
    background: linear-gradient(135deg, #fff9e6 0%, #fffacd 100%) !important;
    border-color: #f1c40f !important;
    animation: searchPulse 1.5s ease-in-out 2;
    box-shadow: 0 0 20px rgba(241, 196, 15, 0.6) !important;
    z-index: 10;
    position: relative;
}

.kanji-item.search-highlight .kanji-char {
    color: #f39c12 !important;
    font-weight: 900 !important;
    text-shadow: 0 2px 4px rgba(243, 156, 18, 0.3);
}

/* 読み仮名 */
.kanji-reading {
    font-size: 9px;
    color: #7f8c8d;
    text-align: center;
    line-height: 1.2;
}

/* スクロールバーのスタイル */
.kanji-grid::-webkit-scrollbar {
    width: 8px;
}

.kanji-grid::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.kanji-grid::-webkit-scrollbar-thumb {
    background: #bbb;
    border-radius: 4px;
}

.kanji-grid::-webkit-scrollbar-thumb:hover {
    background: #999;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: #ecf0f1;
    color: #2c3e50;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

@media (max-width: 768px) {
    .btn-secondary {
        padding: 10px 20px;
        font-size: 14px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .btn-secondary {
        padding: 8px 16px;
        font-size: 13px;
    }
}

.btn-secondary:hover {
    background: #bdc3c7;
}

.btn-edit {
    background: #f39c12;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

@media (max-width: 768px) {
    .btn-edit {
        padding: 10px 20px;
        font-size: 14px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .btn-edit {
        padding: 8px 16px;
        font-size: 13px;
    }
}

.btn-edit:hover {
    background: #e67e22;
}

.btn-save {
    background: #27ae60;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

@media (max-width: 768px) {
    .btn-save {
        padding: 10px 20px;
        font-size: 14px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .btn-save {
        padding: 8px 16px;
        font-size: 13px;
    }
}

.btn-save:hover {
    background: #229954;
}

.btn-toggle {
    background: #9b59b6;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-toggle:hover {
    background: #8e44ad;
}

.note {
    font-size: 13px;
    color: #7f8c8d;
    text-align: center;
    margin-top: -5px;
}

/* ==================================
   印刷用画面のスタイル（A4横向き・縦書き）
   ================================== */
#print-screen {
    background: #e0e0e0;
    min-height: 100vh;
    padding: 20px;
}

.print-container {
    width: 297mm; /* A4横向き幅 */
    height: 210mm; /* A4横向き高さ */
    background: white;
    margin: 0 auto 20px;
    padding: 4mm 6mm; /* 🆕 上下4mm、左右6mm */
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    position: relative;
    writing-mode: horizontal-tb; /* 🆕 横書きベースに変更 */
    overflow: hidden;
    box-sizing: border-box;
}

/* 🆕 中央縦線 */
.print-container::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 14mm;
    bottom: 4mm;
    width: 1px;
    background: linear-gradient(to bottom, #bdc3c7 50%, transparent 50%);
    background-size: 1px 8px;
    transform: translateX(-50%);
    z-index: 1;
}

/* ヘッダー情報 */
.print-header {
    position: absolute;
    top: 2mm;
    right: 4mm;
    writing-mode: horizontal-tb;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 9px;
    z-index: 10;
}

.print-title {
    font-size: 14px;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.header-info {
    display: flex;
    gap: 20px;
}

.student-name-field,
.date-field {
    font-weight: 600;
}

/* セクションタイトル - 削除 */

/* 練習欄（右半分） - 削除済み */

/* practice-grid - 削除済み */

/* 🆕 練習グループ（右上・右下） */
.practice-group-top {
    position: absolute;
    top: 14mm;
    right: 2mm;
    width: calc(50% - 4mm);
    height: calc(50% - 10mm);
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: stretch;
    writing-mode: vertical-rl;
    text-orientation: upright;
    padding: 2mm;
    box-sizing: border-box;
}

.practice-group-bottom {
    position: absolute;
    top: calc(50% + 4mm);
    right: 2mm;
    width: calc(50% - 4mm);
    height: calc(50% - 10mm);
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: stretch;
    writing-mode: vertical-rl;
    text-orientation: upright;
    padding: 2mm;
    box-sizing: border-box;
}

.practice-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 1.5mm;
    position: relative;
    flex: 1;
    min-width: 0;
}

.kanji-container {
    display: flex;
    flex-direction: row; /* 縦書きなので横方向に配置 */
    align-items: center;
    gap: 0.5mm;
}

.practice-kanji {
    font-size: 32px;
    font-weight: 900;
    color: #2c3e50;
    writing-mode: vertical-rl;
    text-orientation: upright;
    flex-shrink: 0;
    /* UDデジタル教科書体（Windows 10以降） */
    font-family: 'BIZ UDPMincho', 'BIZ UDMincho', 'UD デジタル 教科書体 N-R', 'UDDigiKyokashoN-R', 'UD Digi Kyokasho N-R', 'YuKyokasho', 'Yu Kyokasho', '游教科書体', serif;
}

/* 音読み（右側） */
.practice-onyomi {
    font-size: 9px;
    color: #e74c3c;
    writing-mode: vertical-rl;
    text-orientation: upright;
    flex-shrink: 0;
    line-height: 1.2;
    font-weight: 600;
}

/* 訓読み（左側） */
.practice-kunyomi {
    font-size: 9px;
    color: #3498db;
    writing-mode: vertical-rl;
    text-orientation: upright;
    flex-shrink: 0;
    line-height: 1.2;
    font-weight: 600;
}

.practice-boxes {
    display: flex;
    flex-direction: column;
    gap: 1mm;
}

.practice-box {
    width: 16mm;
    height: 16mm;
    border: 1.5px solid #2c3e50;
    position: relative;
    background: white;
    flex-shrink: 0;
}

/* 🆕 なぞり書き用の薄い漢字 */
.trace-kanji {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 40px; /* 中間サイズ */
    font-weight: 400; /* 標準の太さ（細め） */
    color: #d0d0d0; /* 薄いグレー */
    writing-mode: horizontal-tb; /* 横書き */
    text-orientation: upright;
    pointer-events: none; /* クリックイベントを無効化 */
    user-select: none; /* 選択不可 */
    /* UDデジタル教科書体（Windows 10以降） */
    font-family: 'BIZ UDPMincho', 'BIZ UDMincho', 'UD デジタル 教科書体 N-R', 'UDDigiKyokashoN-R', 'UD Digi Kyokasho N-R', 'YuKyokasho', 'Yu Kyokasho', '游教科書体', serif;
}

/* 点線十字 */
.practice-box::before,
.practice-box::after {
    content: '';
    position: absolute;
    background: #bdc3c7;
}

.practice-box::before {
    width: 1px;
    height: 100%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}

.practice-box::after {
    width: 100%;
    height: 1px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

/* テスト欄（左半分） - 削除済み */

/* test-questions - 削除済み */

/* 🆕 テストグループ（左上・左下） */
.test-group-top {
    position: absolute;
    top: 14mm;
    left: 2mm;
    width: calc(50% - 4mm);
    height: calc(50% - 10mm);
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: stretch;
    writing-mode: vertical-rl;
    text-orientation: upright;
    padding: 2mm;
    box-sizing: border-box;
}

.test-group-bottom {
    position: absolute;
    top: calc(50% + 4mm);
    left: 2mm;
    width: calc(50% - 4mm);
    height: calc(50% - 10mm);
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: stretch;
    writing-mode: vertical-rl;
    text-orientation: upright;
    padding: 2mm;
    box-sizing: border-box;
}

.test-item {
    display: flex;
    flex-direction: row; /* 横並び：問題文と解答欄 */
    align-items: flex-start;
    justify-content: flex-start;
    gap: 2mm; /* 問題文と解答欄の間隔 */
    writing-mode: vertical-rl;
    text-orientation: upright;
    padding: 2mm;
}

/* 🆕 問題番号と問題文を統合 */
.test-question-text {
    font-size: 15px; /* 🆕 大きく */
    line-height: 1.6;
    color: #2c3e50;
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-weight: 500;
    flex: 1;
}

/* test-sentence - 削除済み */

/* 解答欄 */
.answer-line {
    font-size: 15px; /* 🆕 大きく */
    color: #2c3e50; /* 🆕 黒色 */
    writing-mode: vertical-rl;
    text-orientation: upright;
    flex-shrink: 0;
}

/* 編集モードのボタン */
.edit-buttons {
    writing-mode: horizontal-tb;
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: absolute;
    left: -30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
}

.edit-btn, .replace-btn, .delete-btn {
    padding: 4px 6px;
    font-size: 14px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    min-width: 24px;
    text-align: center;
}

.edit-btn {
    background: #3498db;
    color: white;
}

.replace-btn {
    background: #9b59b6;
    color: white;
}

.delete-btn {
    background: #e74c3c;
    color: white;
}

.edit-btn:hover, .replace-btn:hover, .delete-btn:hover {
    opacity: 0.85;
    transform: scale(1.1);
    box-shadow: 0 3px 6px rgba(0,0,0,0.15);
}

/* フッター */
.print-footer {
    position: absolute;
    bottom: 2mm;
    right: 4mm;
    font-size: 7px;
    color: #7f8c8d;
    writing-mode: horizontal-tb;
}

/* 印刷コントロール */
.print-controls {
    text-align: center;
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

/* 🆕 解答セクション */
/* ==================================
   🆕 解答セクション（問題と同じA4縦書きレイアウト）
   ================================== */
.answer-section {
    max-width: 1400px;
    margin: 0 auto 30px;
    padding: 20px;
    background: #f8f9fa;
    border: 2px solid #3498db;
    border-radius: 8px;
}

.answer-section h3 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 20px;
    writing-mode: horizontal-tb;
}

/* 解答用のprint-container（問題ページと同じスタイル） */
.answer-container {
    writing-mode: horizontal-tb;
    width: 297mm;
    height: 210mm;
    margin: 20px auto;
    padding: 4mm 6mm;
    background: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    position: relative;
    box-sizing: border-box;
}

/* 解答アイテム（問題ページの.reading-test-itemと同じスタイル） */
.answer-test-item {
    writing-mode: vertical-rl;
    text-orientation: upright;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 2mm;
    border: 1px solid #e0e0e0;
    background: #fafafa;
}

.answer-test-item .test-question-text {
    font-size: 15px;
    line-height: 1.8;
    color: #2c3e50;
    margin-bottom: 8px;
    writing-mode: inherit;
    text-orientation: inherit;
}

/* 🆕 解答欄のスタイル */
.answer-test-item .answer-line {
    font-size: 15px;
    color: #2c3e50;
    writing-mode: inherit;
    text-orientation: inherit;
    margin-top: 5px;
}

/* 🔵 読みテストの解答（ひらがな）を青色で表示 */
.answer-text {
    color: #3498db !important;
    font-weight: 600;
    font-size: 16px;
}

/* 🔴 漢字練習の解答（漢字）を赤色で表示 */
.answer-kanji-text {
    color: #e74c3c !important;
    font-weight: bold;
    font-size: 18px;
}

/* ==================================
   編集ダイアログ（モーダル）
   ================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    max-width: 500px;
    width: 90%;
    writing-mode: horizontal-tb;
}

.modal-content h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.edit-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.edit-input {
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
    width: 100%;
}

.edit-input:focus {
    outline: none;
    border-color: #3498db;
}

.edit-input:read-only {
    background: #f5f5f5;
    cursor: not-allowed;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ==================================
   🆕 読みテストモード用スタイル
   ================================== */
.print-container.reading-test-mode {
    /* 練習欄を非表示 */
}

.print-container.reading-test-mode .practice-group-top,
.print-container.reading-test-mode .practice-group-bottom {
    display: none;
}

/* 読みテスト用の2カラムレイアウト */
.reading-test-container {
    position: absolute;
    top: 14mm;
    left: 2mm;
    right: 2mm;
    bottom: 4mm;
    display: flex;
    flex-direction: row;
    gap: 0;
}

.reading-test-column {
    writing-mode: vertical-rl;
    text-orientation: upright;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: stretch;
    flex: 1;
    padding: 0 2mm;
}

.reading-test-item {
    display: flex;
    flex-direction: row; /* 縦書きなので横並び */
    align-items: flex-start;
    justify-content: flex-start;
    gap: 2mm;
    writing-mode: vertical-rl;
    text-orientation: upright;
    padding: 2mm;
}

/* 🆕 読みテスト用：対象漢字の傍線 */
.target-kanji-underline {
    text-decoration: underline;
    text-decoration-color: #2c3e50;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
    font-weight: 600;
}

/* 印刷用の解答スタイル（@media print内で定義するため削除） */

/* ==================================
   印刷用メディアクエリ
   ================================== */
@media print {
    body {
        background: white;
        margin: 0;
        padding: 0;
    }

    #print-screen {
        background: white;
        padding: 0;
        margin: 0;
    }

    .print-container {
        width: 297mm; /* A4横向きの幅 */
        height: 210mm; /* A4横向きの高さ */
        margin: 0;
        padding: 4mm 6mm;
        box-shadow: none;
        box-sizing: border-box;
        page-break-after: always; /* 各ページで改ページ */
        page-break-inside: avoid; /* 要素内での改ページを防ぐ */
    }
    
    /* 最後のprint-containerでは改ページなし */
    .print-container:last-of-type {
        page-break-after: avoid;
    }

    .print-controls, .edit-buttons {
        display: none !important;
    }

    @page {
        size: A4 landscape;
        margin: 0;
    }
}

/* ==================================
   レスポンシブ対応（プレビュー用）
   ================================== */
@media screen and (max-width: 1200px) {
    .print-container {
        transform: scale(0.8);
        transform-origin: top center;
    }
}

@media screen and (max-width: 900px) {
    .print-container {
        transform: scale(0.6);
    }
}

@media screen and (max-width: 600px) {
    .print-container {
        transform: scale(0.4);
    }
}

/* ==================================
   学年別問題数設定のスタイル
   ================================== */
.grade-question-settings {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    overflow-x: hidden; /* 横はみ出し防止 */
}

@media (max-width: 480px) {
    .grade-question-settings {
        padding: 10px;
        gap: 8px;
    }
}

.grade-question-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    gap: 10px; /* スマホ用にギャップ追加 */
    overflow-x: hidden; /* 横はみ出し防止 */
}

/* スマホ対応：学年別問題数設定 */
@media (max-width: 768px) {
    .grade-question-row {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    
    .grade-label {
        min-width: auto;
        width: 100%;
        text-align: left;
    }
    
    .grade-count-select {
        min-width: auto;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .grade-question-row {
        padding: 8px;
    }
}

.grade-label {
    font-weight: 600;
    color: #34495e;
    min-width: 120px;
    word-wrap: break-word; /* テキスト折り返し */
}

@media (max-width: 480px) {
    .grade-label {
        font-size: 13px;
        min-width: auto;
    }
}

.grade-count-select {
    padding: 6px 12px;
    border: 2px solid #3498db;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    background: white;
    cursor: pointer;
    min-width: 80px;
    max-width: 100%; /* はみ出し防止 */
}

@media (max-width: 480px) {
    .grade-count-select {
        font-size: 13px;
        padding: 6px 10px;
    }
}

.grade-count-select:focus {
    outline: none;
    border-color: #2980b9;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.select-input {
    padding: 10px 15px;
    border: 2px solid #3498db;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    background: white;
    cursor: pointer;
    width: 100%;
    max-width: 100%; /* スマホではみ出し防止 */
    box-sizing: border-box;
}

@media (max-width: 480px) {
    .select-input {
        font-size: 14px;
        padding: 8px 12px;
    }
}

.select-input:focus {
    outline: none;
    border-color: #2980b9;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.question-count-status {
    margin-top: 10px;
    padding: 12px;
    background: white;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
}

/* スマホ対応：フォントサイズ調整 */
@media (max-width: 768px) {
    .question-count-status {
        font-size: 14px;
    }
}

.validation-ok {
    color: #27ae60;
    font-size: 18px;
    margin-left: 8px;
}

.validation-error {
    color: #e74c3c;
    font-size: 18px;
    margin-left: 8px;
}

/* 2ページ目のスタイル */
@media print {
    .print-container.page-2 {
        page-break-before: always;
    }
}