/* static/style.css - レスポンシブ改善版 */

/* ナビゲーションバーのスタイル */
.navbar {
    margin-bottom: 1.5rem;
    border: 1px solid #e0e0e0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700 !important;
}

.navbar-brand i {
    color: #3498db;
}

.navbar-nav .nav-link {
    padding: 0.375rem 0.75rem;
    margin: 0 0.25rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

.navbar-nav .nav-link.btn {
    color: #333 !important;
    text-decoration: none;
    font-weight: 500;
    border: 1px solid #dee2e6;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background-color: #f8f9fa;
}

.navbar-nav .nav-link.btn:hover {
    transform: translateY(-1px);
    text-decoration: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    color: white !important;
}

.navbar-nav .nav-link.btn:focus {
    color: #333 !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 各ボタンのホバー時の色を個別設定 */
.navbar-nav .nav-link.btn.btn-primary:hover {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.navbar-nav .nav-link.btn.btn-danger:hover {
    background-color: #dc3545;
    border-color: #dc3545;
}

.navbar-nav .nav-link.btn.btn-warning:hover {
    background-color: #fd7e14;
    border-color: #fd7e14;
}

.navbar-nav .nav-item span.nav-link {
    background: none !important;
    border: none !important;
    padding: 0.5rem 0.75rem;
}

/* ユーザー情報の表示 */
.navbar-nav.me-auto .nav-item {
    display: flex;
    align-items: center;
}

.navbar-nav.me-auto .nav-link {
    font-size: 0.9rem;
    white-space: nowrap;
}

/* コンテナの調整 */
.container {
    max-width: 1200px;
}

/* レスポンシブ対応 */
@media (max-width: 991.98px) {
    .navbar-nav {
        margin-top: 1rem;
    }

    .navbar-nav .nav-link.btn {
        margin: 0.25rem 0;
        text-align: center;
    }

    .navbar-nav.me-auto {
        margin-bottom: 1rem;
    }

    /* モバイル用アイコンナビゲーションのグリッドレイアウト */
    .navbar-nav.mobile-icon-nav {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin-top: 0.5rem;
    }

    .navbar-nav.mobile-icon-nav .nav-item {
        width: 100%;
        margin: 0;
    }

    .navbar-nav.mobile-icon-nav .nav-link.btn {
        width: 100%;
        margin: 0;
        text-align: center;
        padding: 0.5rem;
        /* 設定ボタンくらいのサイズ感に統一 */
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 最後の要素（ログアウト）は左寄せ（グリッドの自然な配置で左に来るが、明示的に指定も可能） */
    /* 奇数個の場合、最後の要素は左側のカラムに配置されるため、特に追加指定は不要 */
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f7f6;
    color: #333;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    box-sizing: border-box;
}

.container {
    background-color: #ffffff;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    max-width: 1200px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 20px;
    margin-top: 20px;
}

header {
    text-align: center;
    margin-bottom: 20px;
    /* スマホでは小さく */
    border-bottom: 2px solid #eee;
    padding-bottom: 15px;
    /* スマホでは小さく */
    position: relative;
}

header h1 {
    color: #2c3e50;
    font-size: 1.8em;
    /* スマホでは小さく */
    margin: 0;
    font-weight: 700;
}

.logged-in-user-info {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 0.8em;
    /* スマホでは小さく */
    color: #555;
    display: flex;
    align-items: center;
    gap: 8px;
    /* スマホでは小さく */
}

.logout-button,
.progress-button {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 4px 8px;
    /* スマホでは小さく */
    border-radius: 4px;
    /* スマホでは小さく */
    cursor: pointer;
    text-decoration: none;
    font-size: 0.75em;
    /* スマホでは小さく */
    transition: background-color 0.3s ease;
}

.progress-button {
    background-color: #3498db;
}

.logout-button:hover {
    background-color: #c0392b;
}

.progress-button:hover {
    background-color: #2980b9;
}

.flash-messages {
    margin-bottom: 15px;
    /* スマホでは小さく */
}

.alert {
    padding: 8px 12px;
    /* スマホでは小さく */
    margin-bottom: 8px;
    /* スマホでは小さく */
    border-radius: 6px;
    /* スマホでは小さく */
    font-size: 0.9em;
    /* スマホでは小さく */
    text-align: center;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Auth Section (Login/Register/Password Change) */
.auth-section {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 15px;
    /* スマホでは小さく */
}

.auth-container {
    background-color: #ffffff;
    padding: 20px;
    /* スマホでは小さく */
    border-radius: 10px;
    /* スマホでは小さく */
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    /* スマホでは小さく */
    width: 100%;
    box-sizing: border-box;
    text-align: center;
}

.auth-container h2 {
    color: #2c3e50;
    font-size: 1.6em;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマホでは小さく */
}

.auth-container h3 {
    margin-top: 25px;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
    color: #34495e;
    font-size: 1.3em;
    /* スマホでは小さく */
    border-top: 1px solid #eee;
    padding-top: 15px;
    /* スマホでは小さく */
}

.auth-message {
    color: #666;
    margin-bottom: 20px;
    /* スマホでは小さく */
    font-size: 1em;
    /* スマホでは小さく */
}

.input-group {
    margin-bottom: 15px;
    /* スマホでは小さく */
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 6px;
    /* スマホでは小さく */
    color: #555;
    font-weight: bold;
    font-size: 0.9em;
    /* スマホでは小さく */
}

.input-group input[type="text"],
.input-group input[type="password"] {
    width: calc(100% - 16px);
    /* スマホでは小さく */
    padding: 10px 8px;
    /* スマホでは小さく */
    border: 1px solid #ccc;
    border-radius: 6px;
    /* スマホでは小さく */
    font-size: 1em;
    /* スマホでは小さく */
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

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

.button-group {
    margin-top: 20px;
    /* スマホでは小さく */
    display: flex;
    justify-content: center;
    gap: 12px;
    /* スマホでは小さく */
}

.primary-button,
.secondary-button,
.share-button,
.correct-button,
.incorrect-button {
    background-color: #2ecc71;
    color: white;
    border: none;
    padding: 10px 20px;
    /* スマホでは小さく */
    border-radius: 6px;
    /* スマホでは小さく */
    cursor: pointer;
    font-size: 1em;
    /* スマホでは小さく */
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-height: 40px;
    /* タッチしやすい最小サイズ */
    min-width: 60px;
    /* タッチしやすい最小サイズ */
}

.primary-button:hover,
.correct-button:hover {
    background-color: #27ae60;
    transform: translateY(-1px);
    /* スマホでは小さく */
}

.secondary-button {
    background-color: #95a5a6;
}

.secondary-button:hover {
    background-color: #7f8c8d;
    transform: translateY(-1px);
    /* スマホでは小さく */
}

.share-button {
    background-color: #3498db;
}

.share-button:hover {
    background-color: #2980b9;
}

.correct-button {
    background-color: #2ecc71;
}

.incorrect-button {
    background-color: #e74c3c;
}

.incorrect-button:hover {
    background-color: #c0392b;
}

.link-group {
    margin-top: 15px;
    /* スマホでは小さく */
    font-size: 0.85em;
    /* スマホでは小さく */
}

.link-group a {
    color: #3498db;
    text-decoration: none;
}

.link-group a:hover {
    text-decoration: underline;
}

hr {
    border: none;
    border-top: 1px solid #eee;
    margin: 25px 0;
    /* スマホでは小さく */
}

/* Selection Area - メインの改善部分 */
.selection-area {
    margin-top: 15px;
    /* スマホでは小さく */
    max-width: 100%;
}

.controls-area {
    background-color: #f9f9f9;
    padding: 15px;
    /* スマホでは大幅に削減 */
    border-radius: 8px;
    /* スマホでは小さく */
    margin-bottom: 20px;
    /* スマホでは小さく */
    border: 1px solid #eee;
    display: flex;
    flex-direction: column;
    /* スマホでは縦並び */
    gap: 20px;
    /* スマホでは小さく */
}

.question-count-and-auth {
    display: flex;
    flex-direction: column;
    gap: 15px;
    /* スマホでは小さく */
}

.question-count-selection h3,
.selection-area h3 {
    color: #34495e;
    font-size: 1.2em;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
    /* スマホでは小さく */
}

.section-header-with-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}

.section-header-with-action h3 {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

/* 出題数選択ボタン */
.question-count-buttons {
    display: flex;
    gap: 0;
    margin-bottom: 15px;
    background-color: #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
}

.count-btn {
    flex: 1;
    text-align: center;
    padding: 10px 5px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    color: #666;
    background-color: #f0f0f0;
    transition: all 0.2s ease;
    border-right: 1px solid #e0e0e0;
}

.count-btn:last-child {
    border-right: none;
}

.count-btn:hover {
    background-color: #e0e0e0;
}

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

/* 苦手問題ボタン */
.weak-problem-toggle {
    display: flex;
    align-items: center;
}

.weak-problem-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9em;
    color: #666;
    transition: all 0.2s ease;
}

.weak-problem-btn input[type="checkbox"] {
    display: none;
}

.weak-problem-btn:hover {
    background-color: #e8e8e8;
}

.weak-problem-btn:has(input:checked) {
    background-color: #e74c3c;
    border-color: #e74c3c;
    color: white;
}

.weak-problem-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 統一フィルターオプションバー */
.filter-options-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.filter-option-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85em;
    color: #666;
    transition: all 0.2s ease;
}

.filter-option-btn input[type="checkbox"] {
    display: none;
}

.filter-option-btn:hover {
    background-color: #e8e8e8;
}

.filter-option-btn:has(input:checked) {
    background-color: #3498db;
    border-color: #3498db;
    color: white;
}

.filter-option-btn:has(#incorrectOnlyCheckbox2:checked) {
    background-color: #e74c3c;
    border-color: #e74c3c;
}

.filter-option-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* スライダーラベル位置調整 */
.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.85em;
    color: #666;
    padding: 0;
}

.slider-labels span {
    flex: none;
    text-align: center;
    cursor: pointer;
    padding: 5px 0;
    transition: color 0.2s ease;
}

/* 端のラベルを適切に配置 */
.slider-labels span:first-child {
    text-align: left;
}

.slider-labels span:last-child {
    text-align: right;
}

.auth-message-incorrect-only {
    font-size: 0.85em;
    /* スマホでは小さく */
    color: #777;
    margin-top: -8px;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマホでは小さく */
}

.range-selection-area {
    display: flex;
    flex-direction: column;
}

.chapters-container {
    border: 1px solid #eee;
    border-radius: 8px;
    /* スマホでは小さく */
    padding: 10px;
    /* スマホでは小さく */
    max-height: 350px;
    /* スマホでは小さく */
    overflow-y: auto;
    background-color: #fff;
}

.chapter-item {
    border: 1px solid #ddd;
    border-radius: 6px;
    /* スマホでは小さく */
    margin-bottom: 8px;
    /* スマホでは小さく */
    overflow: hidden;
}

.chapter-header {
    background-color: #ecf0f1;
    padding: 8px 12px;
    /* スマホでは大幅に削減 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: bold;
    color: #34495e;
    font-size: 0.95em;
    /* スマホでは小さく */
    transition: background-color 0.2s ease;
    min-height: 40px;
    /* タッチしやすい最小高さ */
}

.chapter-header:hover {
    background-color: #dde1e2;
}

.chapter-header .toggle-icon {
    font-size: 1em;
    /* スマホでは小さく */
    transition: transform 0.2s ease;
    display: inline-block;
}

.chapter-item.expanded .chapter-header .toggle-icon {
    transform: rotate(90deg);
    /* スマホでは90度回転 */
}

.chapter-options {
    display: flex;
    align-items: center;
    gap: 6px;
    /* スマホでは小さく */
}

/* 「全て選択」ボタンのスタイル更新 - スマホ用に大幅改善 */
.select-all-chapter-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 4px 8px;
    /* スマホでは大幅に削減 */
    border-radius: 4px;
    /* スマホでは小さく */
    cursor: pointer;
    font-size: 0.7em;
    /* スマホでは大幅に削減 */
    transition: background-color 0.3s ease, border-color 0.3s ease;
    border: 1px solid #2980b9;
    min-width: 50px;
    /* スマホでは大幅に削減 */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60px;
    /* スマホでの最大幅制限 */
}

.select-all-chapter-btn:hover {
    opacity: 0.9;
}

/* 選択解除状態（赤色）のスタイル */
.select-all-chapter-btn.deselect-mode {
    background-color: #e74c3c !important;
    border-color: #c0392b !important;
}

.select-all-chapter-btn.deselect-mode:hover {
    background-color: #c0392b !important;
}

.unit-list {
    padding: 10px 15px;
    /* スマホでは小さく */
    background-color: #fff;
    display: none;
}

.chapter-item.expanded .unit-list {
    display: block;
}

.unit-item {
    margin-bottom: 8px;
    /* スマホでは小さく */
    display: flex;
    align-items: flex-start;
    gap: 8px;
    /* スマホでは小さく */
}

.unit-item input[type="checkbox"] {
    margin-top: 2px;
    transform: scale(1.0);
    /* スマホでは標準サイズ */
    flex-shrink: 0;
}

.unit-item label {
    flex: 1;
    font-size: 0.9em;
    /* スマホでは小さく */
    line-height: 1.3;
    cursor: pointer;
}

.unit-item input[type="checkbox"]:disabled+label {
    display: none;
    /* 完全に非表示にする */
}

/* または、親要素ごと非表示にする場合 */
.unit-item:has(input[type="checkbox"]:disabled) {
    display: none;
}

.bottom-controls {
    display: flex;
    flex-direction: column;
    /* スマホでは縦並び */
    gap: 10px;
    /* スマホでは小さく */
    margin-top: 20px;
    /* スマホでは小さく */
}

.bottom-controls button {
    width: 100%;
    /* スマホでは幅いっぱい */
    padding: 12px 20px;
    /* スマホでは高めに */
    font-size: 0.95em;
    /* スマホでは小さく */
}

/* Card Area */
.card-area {
    margin-top: 15px;
    /* スマホでは小さく */
    background-color: #f9f9f9;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 8px;
    /* スマホでは小さく */
    text-align: center;
    border: 1px solid #eee;
}

.progress-bar-container {
    width: 100%;
    background-color: #e0e0e0;
    border-radius: 4px;
    /* スマホでは小さく */
    overflow: hidden;
    margin-bottom: 15px;
    /* スマホでは小さく */
    height: 8px;
    /* スマホでは小さく */
    position: relative;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background-color: #2ecc71;
    border-radius: 4px;
    /* スマホでは小さく */
    transition: width 0.3s ease-in-out;
}

.question-number-display {
    position: absolute;
    top: -20px;
    /* スマホでは小さく */
    right: 0;
    font-size: 0.85em;
    /* スマホでは小さく */
    color: #666;
}

.card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    /* スマホでは小さく */
    padding: 15px;
    /* スマホでは大幅に削減 */
    min-height: 200px;
    /* スマホでは小さく */
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
    /* スマホでは小さく */
    position: relative;
}

.question-content {
    width: 100%;
    margin-bottom: 20px;
    /* スマホでは小さく */
}

.question-content p {
    font-size: 1.2em;
    /* スマホでは小さく */
    font-weight: bold;
    color: #2c3e50;
    margin: 0;
    text-align: left;
    line-height: 1.3;
    /* スマホでは小さく */
    width: 100%;
}

.answer-content {
    width: 100%;
    margin-top: 15px;
    /* スマホでは固定位置ではなく相対位置 */
}

.answer-content p {
    font-size: 1.4em;
    /* スマホでは小さく */
    color: #dc3545;
    font-weight: 600;
    margin: 0;
    text-align: left;
    word-wrap: break-word;
    box-sizing: border-box;
    line-height: 1.3;
    /* スマホでは小さく */
}

.card-buttons {
    display: flex;
    flex-direction: column;
    /* スマホでは縦並び */
    gap: 10px;
    /* スマホでは小さく */
    margin-top: 15px;
    /* スマホでは小さく */
    margin-bottom: 20px;
    /* スマホでは小さく */
    width: 100%;
}

.card-buttons button {
    width: 100%;
    /* スマホでは幅いっぱい */
    padding: 12px 16px;
    /* スマホでは適切なサイズ */
    font-size: 0.95em;
    /* スマホでは小さく */
}

/* 「選択画面に戻る」ボタンを左下に配置 */
.card-area .back-to-selection-container {
    display: flex;
    justify-content: flex-start;
    margin-top: 20px;
    /* スマホでは小さく */
    padding-top: 15px;
    /* スマホでは小さく */
    border-top: 1px dashed #ddd;
}

.card-area .back-to-selection-container button {
    background-color: #6c757d;
    color: white;
    border: none;
    padding: 8px 16px;
    /* スマホでは小さく */
    border-radius: 5px;
    /* スマホでは小さく */
    font-size: 0.85em;
    /* スマホでは小さく */
    transition: background-color 0.3s ease;
}

.card-area .back-to-selection-container button:hover {
    background-color: #5a6268;
}

/* Quiz Result Area */
.quiz-result-area {
    margin-top: 15px;
    /* スマホでは小さく */
    background-color: #f9f9f9;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 8px;
    /* スマホでは小さく */
    text-align: center;
    border: 1px solid #eee;
}

.quiz-result-area h2 {
    color: #34495e;
    font-size: 1.5em;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマホでは小さく */
}

.quiz-result-area p {
    font-size: 1.1em;
    /* スマホでは小さく */
    margin-bottom: 8px;
    /* スマホでは小さく */
    color: #444;
}

.quiz-result-area p span {
    font-weight: bold;
    color: #2c3e50;
}

.total-in-range {
    font-size: 0.9em;
    /* スマホでは小さく */
    color: #666;
    margin-top: 12px;
    /* スマホでは小さく */
    border-top: 1px dashed #eee;
    padding-top: 8px;
    /* スマホでは小さく */
}

.incorrect-word-list {
    margin-top: 20px;
    /* スマホでは小さく */
    text-align: left;
    background-color: #fff;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 8px;
    /* スマホでは小さく */
    border: 1px solid #ddd;
}

.incorrect-word-list h3 {
    color: #e74c3c;
    font-size: 1.3em;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
    border-bottom: 1px solid #f8d7da;
    padding-bottom: 8px;
    /* スマホでは小さく */
}

.incorrect-word-list ul {
    list-style-type: none;
    padding: 0;
}

.incorrect-word-list li {
    background-color: #fcfcfc;
    border: 1px solid #f5f5f5;
    border-radius: 6px;
    /* スマホでは小さく */
    padding: 10px 12px;
    /* スマホでは小さく */
    margin-bottom: 8px;
    /* スマホでは小さく */
    display: flex;
    flex-direction: column;
    /* スマホでは縦並び */
    gap: 8px;
    /* スマホでは小さく */
}

.incorrect-question {
    font-weight: bold;
    color: #555;
    word-break: break-word;
    font-size: 0.9em;
    /* スマホでは小さく */
}

.incorrect-answer-container {
    display: flex;
    align-items: center;
    gap: 8px;
    /* スマホでは小さく */
    justify-content: flex-start;
    flex-wrap: wrap;
}

.incorrect-answer {
    color: #dc3545;
    font-weight: 600;
    font-style: normal;
    word-break: break-word;
    font-size: 0.85em;
    /* スマホでは小さく */
}

.show-incorrect-answer-button {
    background-color: #6c757d;
    color: white;
    border: none;
    padding: 4px 8px;
    /* スマホでは小さく */
    border-radius: 4px;
    /* スマホでは小さく */
    cursor: pointer;
    font-size: 0.75em;
    /* スマホでは小さく */
    transition: background-color 0.3s ease;
    white-space: nowrap;
}

.show-incorrect-answer-button:hover {
    background-color: #5a6268;
}

.result-buttons {
    display: flex;
    flex-direction: column;
    /* スマホでは縦並び */
    gap: 10px;
    /* スマホでは小さく */
    margin-top: 20px;
    /* スマホでは小さく */
}

.result-buttons button {
    width: 100%;
    /* スマホでは幅いっぱい */
    padding: 12px 16px;
    /* スマホでは適切なサイズ */
    font-size: 0.95em;
    /* スマホでは小さく */
}

/* Weak Words List Section */
.weak-words-list-area {
    margin-top: 15px;
    /* スマホでは小さく */
    background-color: #f9f9f9;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 8px;
    /* スマホでは小さく */
    text-align: center;
    border: 1px solid #eee;
}

.weak-words-list-area h2 {
    color: #34495e;
    font-size: 1.5em;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
}

.weak-words-list-area p {
    color: #666;
    font-size: 0.85em;
    /* スマホでは小さく */
    margin-bottom: 20px;
    /* スマホでは小さく */
    line-height: 1.4;
    /* スマホでは小さく */
}

.weak-words-list-area ul {
    list-style-type: none;
    padding: 0;
    text-align: left;
}

.weak-words-list-area li {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    /* スマホでは小さく */
    padding: 12px;
    /* スマホでは小さく */
    margin-bottom: 8px;
    /* スマホでは小さく */
    display: flex;
    flex-direction: column;
    gap: 6px;
    /* スマホでは小さく */
}

.weak-words-list-area li .question-text {
    font-weight: bold;
    color: #2c3e50;
    font-size: 0.95em;
    /* スマホでは小さく */
}

.weak-words-list-area li .answer-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    /* スマホでは小さく */
}

.weak-words-list-area li .answer-text {
    color: #3498db;
    font-style: italic;
    flex-shrink: 0;
    font-size: 0.9em;
    /* スマホでは小さく */
}

.weak-words-list-area li .show-answer-button {
    background-color: #95a5a6;
    color: white;
    border: none;
    padding: 4px 8px;
    /* スマホでは小さく */
    border-radius: 4px;
    /* スマホでは小さく */
    cursor: pointer;
    font-size: 0.75em;
    /* スマホでは小さく */
    transition: background-color 0.3s ease;
}

.weak-words-list-area li .show-answer-button:hover {
    background-color: #7f8c8d;
}

.weak-words-list-area li .accuracy-display {
    font-size: 0.8em;
    /* スマホでは小さく */
    color: #777;
    margin-top: 5px;
    /* スマホでは小さく */
    white-space: nowrap;
}

.weak-words-list-area li .accuracy-display .rate {
    font-weight: bold;
    color: #e74c3c;
}

/* Info Panel */
.info-icon {
    position: fixed;
    bottom: 15px;
    /* スマホでは小さく */
    right: 15px;
    /* スマホでは小さく */
    background-color: #f39c12;
    color: white;
    border-radius: 50%;
    width: 40px;
    /* スマホでは小さく */
    height: 40px;
    /* スマホでは小さく */
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3em;
    /* スマホでは小さく */
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.info-icon:hover {
    background-color: #e67e22;
}

/* 通知バッジ */
.info-icon.has-new::after {
    content: '';
    position: absolute;
    top: 0px;
    right: 0px;
    width: 12px;
    height: 12px;
    background-color: #e74c3c;
    border: 2px solid #fff;
    border-radius: 50%;
    animation: pulse-red 2s infinite;
}

/* NEWバッジ */
.new-badge {
    background-color: #e74c3c;
    color: white;
    font-size: 0.65em;
    padding: 1px 4px;
    border-radius: 3px;
    font-weight: bold;
    display: inline-block;
    vertical-align: middle;
    margin-left: 8px;
    letter-spacing: 0.5px;
    animation: fadeIn 0.5s ease-in;
    line-height: 1.2;
}

.new-badge.update {
    background-color: #e67e22;
    /* 更新はオレンジ */
}

@keyframes pulse-red {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.7);
    }

    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(231, 76, 60, 0);
    }

    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(231, 76, 60, 0);
    }
}

.info-panel {
    position: fixed;
    bottom: 65px;
    /* スマホでは小さく */
    right: 15px;
    /* スマホでは小さく */
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    /* スマホでは小さく */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 15px;
    /* スマホでは小さく */
    width: calc(100vw - 40px);
    /* スマホでは画面幅に合わせる */
    max-width: 280px;
    /* 最大幅制限 */
    z-index: 999;
}

.info-panel h3 {
    margin-top: 0;
    color: #34495e;
    font-size: 1.1em;
    /* スマホでは小さく */
}

.info-panel p {
    font-size: 0.85em;
    /* スマホでは小さく */
    line-height: 1.5;
    /* スマホでは小さく */
    color: #555;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Admin Section */
.admin-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 25px;
    /* スマホでは小さく */
    font-size: 1.6em;
    /* スマホでは小さく */
}

.admin-panel {
    background-color: #f9f9f9;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 8px;
    /* スマホでは小さく */
    margin-bottom: 20px;
    /* スマホでは小さく */
    border: 1px solid #eee;
}

.admin-panel h3 {
    color: #34495e;
    font-size: 1.3em;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマホでは小さく */
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
    /* スマホでは小さく */
}

.admin-panel h4 {
    color: #555;
    font-size: 1.1em;
    /* スマホでは小さく */
    margin-top: 20px;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
}

.add-user-form .input-group {
    margin-bottom: 12px;
    /* スマホでは小さく */
}

.add-user-form button {
    margin-top: 12px;
    /* スマホでは小さく */
    width: 100%;
    /* スマホでは幅いっぱい */
    padding: 10px 15px;
    /* スマホでは適切なサイズ */
}

.user-list-container {
    margin-top: 25px;
    /* スマホでは小さく */
}

.user-list-container table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    /* スマホでは小さく */
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-radius: 6px;
    /* スマホでは小さく */
    overflow: hidden;
    font-size: 0.85em;
    /* スマホでは小さく */
}

.user-list-container th,
.user-list-container td {
    padding: 8px 6px;
    /* スマホでは小さく */
    border-bottom: 1px solid #ddd;
    text-align: left;
    word-break: break-word;
    /* スマホでは改行許可 */
}

.user-list-container th {
    background-color: #ecf0f1;
    color: #34495e;
    font-weight: bold;
    font-size: 0.8em;
    /* スマホでは小さく */
}

.user-list-container tr:last-child td {
    border-bottom: none;
}

.user-list-container tbody tr:hover {
    background-color: #f5f5f5;
}

/* Unit Settings in Admin */
.unit-settings-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    /* スマホでは小さく */
}

.unit-settings-container .chapter-setting {
    border: 1px solid #ddd;
    border-radius: 6px;
    /* スマホでは小さく */
    padding: 12px;
    /* スマホでは小さく */
    background-color: #fff;
}

.unit-settings-container .chapter-setting h4 {
    margin-top: 0;
    margin-bottom: 12px;
    /* スマホでは小さく */
    color: #2c3e50;
    font-size: 1.2em;
    /* スマホでは小さく */
    border-bottom: 1px dashed #eee;
    padding-bottom: 8px;
    /* スマホでは小さく */
}

.unit-toggle-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    /* スマボでは小さく */
}

.unit-toggle-item {
    background-color: #f0f4f7;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    /* スマホでは小さく */
    padding: 8px 12px;
    /* スマホでは小さく */
    display: flex;
    flex-direction: column;
    gap: 6px;
    /* スマボでは小さく */
    min-width: 150px;
    /* スマホでは小さく */
    flex: 1;
}

.unit-toggle-item span {
    font-weight: bold;
    color: #444;
    font-size: 0.9em;
    /* スマホでは小さく */
}

.room-specific-toggles {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    /* スマホでは小さく */
    margin-top: 4px;
    /* スマホでは小さく */
}

.room-specific-toggles label {
    display: flex;
    align-items: center;
    gap: 4px;
    /* スマホでは小さく */
    font-size: 0.8em;
    /* スマホでは小さく */
    color: #666;
    cursor: pointer;
}

.room-specific-toggles input[type="checkbox"] {
    transform: scale(1.0);
    /* スマホでは標準サイズ */
}

/* 進捗ページのスタイル改善 */
.progress-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
    /* スマホでは小さく */
    padding-bottom: 12px;
    /* スマホでは小さく */
    border-bottom: 3px solid #3498db;
    font-size: 1.5em;
    /* スマホでは小さく */
}

/* ランキングセクションと単元別進捗セクションに共通のスタイル */
.ranking-container,
.progress-container {
    background-color: #f9f9f9;
    padding: 15px;
    /* スマホでは小さく */
    border-radius: 10px;
    /* スマホでは小さく */
    margin-bottom: 20px;
    /* スマホでは小さく */
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* ランキングセクション専用スタイル */
.ranking-container {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-left: 5px solid #ffc107;
}

.ranking-container h3 {
    color: #495057;
    font-size: 1.3em;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
    display: flex;
    align-items: center;
}

.ranking-container h3::before {
    content: "🏆";
    margin-right: 8px;
    /* スマホでは小さく */
    font-size: 1.1em;
    /* スマホでは小さく */
}

.ranking-container p {
    color: #6c757d;
    font-size: 0.9em;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマホでは小さく */
}

/* ランキング基準説明のスタイル */
.ranking-criteria {
    background-color: #e3f2fd;
    border: 1px solid #90caf9;
    border-radius: 6px;
    /* スマホでは小さく */
    padding: 12px;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマホでは小さく */
}

.ranking-criteria p {
    margin-bottom: 4px;
    /* スマボでは小さく */
    color: #1565c0;
    font-size: 0.85em;
    /* スマホでは小さく */
}

.ranking-criteria p:last-child {
    margin-bottom: 0;
}

.ranking-criteria small {
    color: #42a5f5;
    font-style: italic;
    font-size: 0.8em;
    /* スマホでは小さく */
}

/* ランキングテーブルのスタイル */
.ranking-container table {
    background-color: #ffffff;
    border-radius: 6px;
    /* スマホでは小さく */
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-size: 0.8em;
    /* スマホでは小さく */
    width: 100%;
    min-width: 500px;
    /* スマホではスクロール前提 */
}

.ranking-container table th {
    background-color: #495057;
    color: white;
    font-weight: 600;
    padding: 8px 4px;
    /* スマホでは小さく */
    text-align: center;
    font-size: 0.75em;
    /* スマホでは小さく */
}

.ranking-container table td {
    padding: 6px 4px;
    /* スマホでは小さく */
    text-align: center;
    border-bottom: 1px solid #e9ecef;
    font-size: 0.75em;
    /* スマホでは小さく */
}

.ranking-container table tr:nth-child(1) td:first-child {
    background-color: #ffd700;
    color: #333;
    font-weight: bold;
}

.ranking-container table tr:nth-child(2) td:first-child {
    background-color: #c0c0c0;
    color: #333;
    font-weight: bold;
}

.ranking-container table tr:nth-child(3) td:first-child {
    background-color: #cd7f32;
    color: white;
    font-weight: bold;
}

/* 単元別進捗セクション専用スタイル */
.progress-container {
    border-left: 5px solid #28a745;
}

.progress-container h3 {
    color: #495057;
    font-size: 1.3em;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマボでは小さく */
    display: flex;
    align-items: center;
}

.progress-container h3::before {
    content: "📊";
    margin-right: 8px;
    /* スマホでは小さく */
    font-size: 1.1em;
    /* スマホでは小さく */
}

/* 進捗アイテムのスタイル改善 */
.progress-item {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    /* スマホでは小さく */
    padding: 15px;
    /* スマホでは小さく */
    margin-bottom: 15px;
    /* スマボでは小さく */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.progress-item:hover {
    transform: translateY(-1px);
    /* スマホでは小さく */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.progress-item h4 {
    color: #2c3e50;
    font-size: 1.1em;
    /* スマホでは小さく */
    margin-bottom: 12px;
    /* スマホでは小さく */
    padding-bottom: 6px;
    /* スマボでは小さく */
    border-bottom: 2px solid #e9ecef;
}

.progress-item p {
    margin-bottom: 8px;
    /* スマホでは小さく */
    color: #555;
    font-size: 0.95em;
    /* スマホでは小さく */
}

/* 進捗バーコンテナーのスタイル改善 */
.progress-item .progress-bar-container {
    background-color: #e9ecef;
    border-radius: 6px;
    /* スマホでは小さく */
    height: 10px;
    /* スマホでは小さく */
    margin-top: 12px;
    /* スマホでは小さく */
    overflow: hidden;
}

.progress-item .progress-bar {
    background: linear-gradient(90deg, #28a745 0%, #20c997 100%);
    height: 100%;
    border-radius: 6px;
    /* スマホでは小さく */
    transition: width 0.8s ease-in-out;
}

/* セクション間の仕切り線のスタイル */
.progress-section hr {
    margin: 30px 0;
    /* スマホでは小さく */
    border: none;
    height: 2px;
    /* スマホでは小さく */
    background: linear-gradient(90deg, transparent 0%, #3498db 20%, #3498db 80%, transparent 100%);
    border-radius: 1px;
    /* スマホでは小さく */
}

/* テーブルの横スクロール対応 */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -8px;
    /* スマホでは小さく */
    padding: 0 8px;
    /* スマボでは小さく */
}

/* ================================
   タブレット以上の画面での改善
   ================================ */

@media (min-width: 768px) {
    .container {
        padding: 25px;
    }

    .controls-area {
        display: grid;
        grid-template-columns: 1fr 2fr;
        gap: 25px;
        align-items: start;
        padding: 20px;
    }



    .question-count-selection h3,
    .selection-area h3 {
        font-size: 1.4em;
    }

    .radio-group {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .radio-group label {
        font-size: 1.05em;
    }

    .chapter-header {
        padding: 12px 20px;
        font-size: 1.1em;
    }

    .select-all-chapter-btn {
        padding: 6px 12px;
        font-size: 0.9em;
        min-width: 80px;
        max-width: none;
    }

    .unit-list {
        padding: 15px 20px;
    }

    .unit-item label {
        font-size: 1em;
    }

    .bottom-controls {
        grid-column: 1 / -1;
        display: flex;
        flex-direction: row;
        justify-content: center;
        gap: 20px;
    }

    .bottom-controls button {
        width: auto;
        padding: 12px 30px;
        font-size: 1.1em;
    }

    .card {
        padding: 25px;
        min-height: 280px;
    }

    .question-content p {
        font-size: 1.6em;
        line-height: 1.4;
    }

    .answer-content {
        /* position: absolute; REMOVED to fix overlap */
        /* top: 120px; */
        /* left: 25px; */
        /* right: 25px; */
        margin-top: 20px;
    }

    .answer-content p {
        font-size: 1.8em;
        line-height: 1.4;
    }

    .card-buttons {
        display: flex;
        flex-direction: row;
        gap: 20px;
    }

    .card-buttons button {
        flex: 1;
        max-width: 180px;
        font-size: 1.1em;
    }

    .result-buttons {
        display: flex;
        flex-direction: row;
        justify-content: center;
        gap: 15px;
        flex-wrap: wrap;
    }

    .result-buttons button {
        flex-basis: auto;
        min-width: 150px;
        width: auto;
    }

    .ranking-container,
    .progress-container {
        padding: 25px;
    }

    .ranking-container h3,
    .progress-container h3 {
        font-size: 1.6em;
    }

    .ranking-container table {
        font-size: 1em;
        min-width: auto;
    }

    .ranking-container table th,
    .ranking-container table td {
        padding: 12px;
        font-size: 1em;
    }

    .info-panel {
        width: 300px;
        right: 20px;
        bottom: 80px;
    }
}

/* ================================
   デスクトップ画面での改善
   ================================ */

@media (min-width: 1024px) {
    .container {
        padding: 30px;
    }

    .navbar-brand {
        font-size: 1.5rem;
    }

    .controls-area {
        padding: 25px;
    }

    .chapters-container {
        max-height: 450px;
    }

    .card {
        padding: 30px;
        min-height: 300px;
    }

    .user-list-container table {
        font-size: 1rem;
    }

    .user-list-container th,
    .user-list-container td {
        padding: 12px 15px;
    }
}

/* ================================
   極小画面での緊急対応（480px以下）
   ================================ */

@media (max-width: 480px) {
    .container {
        padding: 8px;
        margin: 8px auto;
    }

    .controls-area {
        padding: 10px;
    }

    .chapter-header {
        padding: 6px 8px;
        font-size: 0.85em;
    }

    .select-all-chapter-btn {
        padding: 3px 6px;
        font-size: 0.65em;
        min-width: 45px;
        max-width: 55px;
    }

    .unit-item label {
        font-size: 0.85em;
    }

    .card {
        padding: 10px;
    }

    .question-content p {
        font-size: 1.1em;
        line-height: 1.2;
    }

    .answer-content p {
        font-size: 1.3em;
        line-height: 1.2;
    }

    .ranking-container table,
    .progress-container table {
        font-size: 0.7em;
        min-width: 450px;
    }

    .ranking-container table th,
    .ranking-container table td {
        padding: 4px 2px;
        font-size: 0.65em;
    }

    .info-panel {
        width: calc(100vw - 20px);
        left: 10px;
        right: 10px;
    }
}

/* ================================
   アクセシビリティ対応
   ================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .progress-bar {
        transition: none;
    }

    .toggle-icon {
        transition: none;
    }
}

/* ================================
   印刷対応
   ================================ */

@media print {

    .navbar,
    .info-icon,
    .info-panel,
    .card-buttons,
    .bottom-controls,
    .result-buttons {
        display: none !important;
    }

    .container {
        max-width: none;
        padding: 0;
        box-shadow: none;
        margin: 0;
    }

    .card,
    .ranking-container,
    .progress-container {
        box-shadow: none;
        border: 1px solid #000;
        page-break-inside: avoid;
    }

    .question-content p,
    .answer-content p {
        color: #000 !important;
        font-size: 12pt !important;
        line-height: 1.4 !important;
    }
}

/* ================================
   iOS Safari対応
   ================================ */

@supports (-webkit-touch-callout: none) {

    .input-group input,
    .input-group select {
        -webkit-appearance: none;
        appearance: none;
        border-radius: 8px;
    }

    .primary-button,
    .secondary-button {
        -webkit-appearance: none;
        appearance: none;
        border-radius: 8px;
    }

    .container {
        min-height: calc(100vh - env(safe-area-inset-top) - env(safe-area-inset-bottom));
        min-height: calc(100vh - constant(safe-area-inset-top) - constant(safe-area-inset-bottom));
    }
}

/* =======================================
   スマホ表示緊急修正 - style.cssの末尾に追加
   ======================================= */

/* 1. 「全て選択」「選択解除」ボタンの修正 */
@media (max-width: 767px) {
    .select-all-chapter-btn {
        padding: 2px 4px !important;
        font-size: 0.6rem !important;
        min-width: 40px !important;
        max-width: 50px !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        line-height: 1.2;
        height: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .select-all-chapter-btn {
        padding: 1px 3px !important;
        font-size: 0.55rem !important;
        min-width: 35px !important;
        max-width: 45px !important;
        height: 18px;
    }
}

/* 2. 章ヘッダーのレイアウト修正 */
@media (max-width: 767px) {
    .chapter-header {
        padding: 6px 10px !important;
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        flex-wrap: nowrap !important;
        gap: 6px !important;
        min-height: 36px;
    }

    .chapter-title {
        flex: 1;
        min-width: 0;
        font-size: 0.85rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .chapter-options {
        display: flex !important;
        align-items: center !important;
        gap: 4px !important;
        flex-shrink: 0 !important;
    }

    .toggle-icon {
        font-size: 0.8rem !important;
        width: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .chapter-header {
        padding: 4px 8px !important;
        gap: 3px !important;
        min-height: 32px;
    }

    .chapter-title {
        font-size: 0.8rem;
    }

    .chapter-options {
        gap: 2px !important;
    }

    .toggle-icon {
        font-size: 0.75rem !important;
        width: 14px;
    }
}

/* 3. テーブルの横スクロール対応 */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -8px;
    padding: 0 8px;
}

@media (max-width: 767px) {

    .ranking-container,
    .progress-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .ranking-container table,
    .progress-container table,
    .user-list-table,
    .room-setting-table {
        min-width: 500px;
        width: 100%;
        display: table !important;
        white-space: nowrap;
        font-size: 0.7rem !important;
    }

    .ranking-container table th,
    .ranking-container table td,
    .progress-container table th,
    .progress-container table td {
        padding: 3px 2px !important;
        min-width: 35px;
        max-width: 70px;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 0.65rem !important;
    }
}

@media (max-width: 480px) {

    .ranking-container table,
    .progress-container table {
        min-width: 450px;
        font-size: 0.6rem !important;
    }

    .ranking-container table th,
    .ranking-container table td,
    .progress-container table th,
    .progress-container table td {
        padding: 2px 1px !important;
        min-width: 30px;
        max-width: 60px;
        font-size: 0.6rem !important;
    }
}

/* 4. ボタン群の修正 */
@media (max-width: 767px) {
    .bottom-controls {
        display: flex !important;
        flex-direction: column !important;
        gap: 8px !important;
        margin-top: 15px !important;
        align-items: stretch !important;
    }

    .bottom-controls button {
        width: 100% !important;
        max-width: none !important;
        padding: 10px 16px !important;
        font-size: 0.9rem !important;
        white-space: nowrap;
        min-height: 40px;
    }
}

/* 5. コンテナの改善 */
@media (max-width: 767px) {
    .container {
        padding: 8px !important;
        margin: 5px auto !important;
    }

    .controls-area {
        padding: 10px !important;
        gap: 12px !important;
    }

    .chapters-container {
        max-height: 250px !important;
        padding: 6px !important;
    }
}

/* 6. ナビゲーションバーの修正 */
@media (max-width: 767px) {
    .navbar {
        padding: 4px 8px !important;
    }

    .navbar-brand {
        font-size: 0.9rem !important;
    }

    .navbar-nav .nav-link {
        font-size: 0.75rem !important;
        padding: 3px 6px !important;
    }
}

/* 7. カードエリアの修正 */
@media (max-width: 767px) {
    .card {
        padding: 10px !important;
        margin-bottom: 12px !important;
        min-height: auto !important;
    }

    .question-content p {
        font-size: 1.0rem !important;
        line-height: 1.2 !important;
        margin-bottom: 12px !important;
    }

    .answer-content {
        position: static !important;
        margin-top: 12px !important;
    }

    .answer-content p {
        font-size: 1.2rem !important;
        line-height: 1.1 !important;
    }

    .card-buttons {
        gap: 8px !important;
        margin-top: 12px !important;
    }

    .card-buttons button {
        padding: 10px 14px !important;
        font-size: 0.9rem !important;
    }
}

/* 8. 進捗ページの特別対応 */
@media (max-width: 767px) {
    .progress-section {
        overflow-x: hidden;
    }

    .progress-section h2 {
        font-size: 1.1rem !important;
        line-height: 1.2;
        word-wrap: break-word;
        margin-bottom: 20px !important;
    }

    .ranking-container h3,
    .progress-container h3 {
        font-size: 1.0rem !important;
        margin-bottom: 10px !important;
    }

    .ranking-criteria {
        padding: 8px !important;
        margin-bottom: 10px !important;
    }

    .ranking-criteria p {
        font-size: 0.75rem !important;
        margin-bottom: 2px !important;
    }

    .ranking-criteria small {
        font-size: 0.7rem !important;
    }
}

/* 9. テキストの折り返し改善 */
@media (max-width: 767px) {
    .unit-item label {
        word-wrap: break-word !important;
        word-break: break-word !important;
        hyphens: auto !important;
        line-height: 1.2 !important;
        font-size: 0.85rem !important;
    }

    .incorrect-question {
        font-size: 0.85rem !important;
        line-height: 1.2 !important;
        word-break: break-word !important;
    }

    .incorrect-answer {
        font-size: 0.8rem !important;
        line-height: 1.1 !important;
    }
}

/* 10. 重要：全体の横スクロール防止 */
html,
body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
}

* {
    box-sizing: border-box !important;
}

.container,
.ranking-container,
.progress-container,
.admin-panel,
.controls-area,
.card-area,
.quiz-result-area {
    max-width: 100% !important;
    overflow-x: auto !important;
}

/* 11. フォーム要素の調整 */
@media (max-width: 767px) {
    .input-group {
        margin-bottom: 8px !important;
    }

    .input-group label {
        font-size: 0.85rem !important;
        margin-bottom: 3px !important;
    }

    .input-group input,
    .input-group select {
        padding: 6px !important;
        font-size: 0.85rem !important;
        min-height: 36px !important;
    }
}

/* 12. 管理者ページの特別対応 */
@media (max-width: 767px) {
    .admin-container {
        padding: 6px !important;
    }

    .admin-panel {
        padding: 10px !important;
        margin-bottom: 12px !important;
    }

    .admin-panel h3 {
        font-size: 1.0rem !important;
        margin-bottom: 8px !important;
    }

    .admin-panel h4 {
        font-size: 0.95rem !important;
        margin-top: 15px !important;
        margin-bottom: 8px !important;
    }

    .user-list-table {
        font-size: 0.65rem !important;
    }

    .user-list-table th,
    .user-list-table td {
        padding: 2px 1px !important;
        word-break: break-all !important;
        min-width: 40px !important;
        max-width: 80px !important;
    }
}

/* 13. 苦手問題一覧の改善 */
@media (max-width: 767px) {
    .weak-words-list-area {
        padding: 10px !important;
    }

    .weak-words-list-area h2 {
        font-size: 1.2rem !important;
        margin-bottom: 10px !important;
    }

    .weak-words-list-area p {
        font-size: 0.8rem !important;
        margin-bottom: 15px !important;
        line-height: 1.3 !important;
    }

    .weak-words-list-area li {
        padding: 8px !important;
        margin-bottom: 6px !important;
        gap: 6px !important;
    }

    .weak-words-list-area li .question-text {
        font-size: 0.85rem !important;
        line-height: 1.2 !important;
        word-break: break-word !important;
    }

    .weak-words-list-area li .answer-container {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 6px !important;
    }

    .weak-words-list-area li .answer-text {
        font-size: 0.8rem !important;
    }

    .weak-words-list-area li .show-answer-button {
        font-size: 0.7rem !important;
        padding: 3px 6px !important;
    }

    .weak-words-list-area li .accuracy-display {
        font-size: 0.75rem !important;
        margin-left: 0 !important;
        margin-top: 4px !important;
    }
}

/* 14. 情報パネルの調整 */
@media (max-width: 767px) {
    .info-icon {
        width: 35px !important;
        height: 35px !important;
        font-size: 1.1rem !important;
        bottom: 12px !important;
        right: 12px !important;
    }

    .info-panel {
        width: calc(100vw - 24px) !important;
        max-width: 250px !important;
        right: 12px !important;
        bottom: 55px !important;
        padding: 10px !important;
        font-size: 0.8rem !important;
    }

    .info-panel h3 {
        font-size: 1.0rem !important;
        margin-bottom: 6px !important;
    }

    .info-panel p {
        font-size: 0.75rem !important;
        line-height: 1.3 !important;
        margin-bottom: 4px !important;
    }
}

/* 15. 極小画面での緊急対応 */
@media (max-width: 320px) {
    .navbar-brand {
        font-size: 0.8rem !important;
    }

    .select-all-chapter-btn {
        font-size: 0.5rem !important;
        padding: 1px 2px !important;
        min-width: 30px !important;
        max-width: 35px !important;
        height: 16px !important;
    }

    .primary-button,
    .secondary-button {
        font-size: 0.8rem !important;
        padding: 6px 10px !important;
    }

    .radio-group label {
        font-size: 0.8rem !important;
        padding: 4px !important;
    }

    .unit-item label {
        font-size: 0.75rem !important;
    }

    .chapter-title {
        font-size: 0.75rem !important;
    }

    .toggle-icon {
        font-size: 0.7rem !important;
        width: 12px !important;
    }
}

/* 16. タッチデバイス専用の改善 */
@media (hover: none) and (pointer: coarse) {
    .unit-item label {
        padding: 6px !important;
        margin: 2px 0 !important;
        border-radius: 4px !important;
        background-color: rgba(0, 0, 0, 0.02) !important;
        transition: background-color 0.2s !important;
        min-height: 32px !important;
        display: flex !important;
        align-items: center !important;
    }

    .unit-item label:active {
        background-color: rgba(0, 0, 0, 0.1) !important;
    }

    .radio-group label {
        min-height: 36px !important;
    }

    .select-all-chapter-btn {
        min-height: 24px !important;
        touch-action: manipulation !important;
    }

    .chapter-header {
        min-height: 40px !important;
        touch-action: manipulation !important;
    }
}

/* 17. スクロールバーの改善 */
@media (max-width: 767px) {

    .chapters-container,
    .ranking-container,
    .progress-container {
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: thin !important;
    }

    .chapters-container::-webkit-scrollbar,
    .ranking-container::-webkit-scrollbar,
    .progress-container::-webkit-scrollbar {
        width: 4px !important;
        height: 4px !important;
    }

    .chapters-container::-webkit-scrollbar-track,
    .ranking-container::-webkit-scrollbar-track,
    .progress-container::-webkit-scrollbar-track {
        background: #f1f1f1 !important;
    }

    .chapters-container::-webkit-scrollbar-thumb,
    .ranking-container::-webkit-scrollbar-thumb,
    .progress-container::-webkit-scrollbar-thumb {
        background: #888 !important;
        border-radius: 2px !important;
    }
}

/* 18. 横向きモバイル対応 */
@media screen and (max-width: 767px) and (orientation: landscape) {
    .chapters-container {
        max-height: 150px !important;
    }

    .card {
        padding: 8px !important;
        min-height: auto !important;
    }

    .question-content p {
        font-size: 0.95rem !important;
        line-height: 1.1 !important;
    }

    .answer-content p {
        font-size: 1.1rem !important;
        line-height: 1.0 !important;
    }

    .chapter-header {
        padding: 4px 6px !important;
        min-height: 28px !important;
    }

    .controls-area {
        padding: 6px !important;
        gap: 8px !important;
    }
}


/* =======================================
   コンパクトフッタースタイル
   ======================================= */

.footer {
    margin-top: auto;
    background-color: #f8f9fa;
    border-top: 1px solid #e0e0e0;
    font-size: 0.85rem;
    padding: 1rem 0 !important;
    /* 縦幅を狭く */
}

.footer-text {
    color: #6c757d;
    margin: 0;
    line-height: 1.2;
}

.contact-info {
    color: #6c757d;
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.contact-info a {
    color: #495057;
    transition: color 0.2s ease;
}

.contact-info a:hover {
    color: #007bff;
}

.app-version {
    color: #adb5bd;
    font-size: 0.75rem;
    line-height: 1.2;
    margin-top: 0.25rem;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .footer {
        text-align: center;
        font-size: 0.75rem;
        padding: 0.75rem 0 !important;
        /* スマホでさらに狭く */
    }

    .footer .col-md-6:first-child {
        margin-bottom: 0.5rem;
    }

    .footer .text-md-end {
        text-align: center !important;
    }

    .contact-info {
        margin-bottom: 0.25rem;
    }

    .app-version {
        font-size: 0.7rem;
    }
}

/* ページ全体のレイアウト調整（フッターを下に固定） */
html,
body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container:first-of-type {
    flex: 1;
}

/* 印刷時はフッターを隠す */
@media print {
    .footer {
        display: none !important;
    }
}

/* =======================================
   フッタースペース調整
   ======================================= */

.footer {
    margin-top: 2rem !important;
    /* 広すぎたmargin-topを縮小 */
    background-color: #f8f9fa;
    border-top: 1px solid #e0e0e0;
    font-size: 0.85rem;
    padding: 0.75rem 0 !important;
    /* 縦パディングを縮小 */
}

/* コンテナとフッター間のスペースを調整 */
.container:last-of-type {
    margin-bottom: 1rem !important;
    /* 下マージンを縮小 */
}

/* 管理者ページなどの特定ページでのスペース調整 */
.admin-container {
    margin-bottom: 1rem !important;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .footer {
        margin-top: 1rem !important;
        /* スマホではさらに縮小 */
        padding: 0.5rem 0 !important;
    }

    .container:last-of-type {
        margin-bottom: 0.5rem !important;
    }
}

/* 印刷時はフッターを隠す */
@media print {
    .footer {
        display: none !important;
    }
}

/* =======================================
   コンテンツとフッター間の余白削除
   ======================================= */

/* フッターの上マージンを削除 */
.footer {
    margin-top: 0 !important;
    /* 余白を完全に削除 */
    background-color: #f8f9fa;
    border-top: 1px solid #e0e0e0;
    font-size: 0.85rem;
    padding: 0.75rem 0 !important;
}

/* 全てのコンテナの下マージンを削除 */
.container,
.admin-container,
.progress-section,
.auth-section {
    margin-bottom: 0 !important;
}

/* 特に進捗ページなどのセクションの下マージンを削除 */
section:last-child,
.progress-container:last-child,
.ranking-container:last-child {
    margin-bottom: 0 !important;
}

/* ページ全体のレイアウト調整 */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* メインコンテンツ部分 */
.container:first-of-type {
    flex: 1;
    /* 利用可能なスペースを占有 */
    margin-bottom: 0 !important;
}

/* フッターを下に固定しつつ、コンテンツとの余白を削除 */
.footer {
    margin-top: auto;
    /* flexboxでフッターを下に押し下げ */
}

/* レスポンシブ対応 */
@media (max-width: 767px) {

    .container,
    .admin-container {
        padding-bottom: 0 !important;
        margin-bottom: 0 !important;
    }
}

/* 印刷時はフッターを隠す */
@media print {
    .footer {
        display: none !important;
    }
}

/* =======================================
   情報パネルのテキストサイズ統一
   ======================================= */

.info-panel {
    position: fixed;
    bottom: 65px;
    right: 15px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 15px;
    width: calc(100vw - 40px);
    max-width: 400px;
    z-index: 999;
}

/* タイトル（世界史単語帳）のサイズを統一 */
.info-panel h3 {
    margin-top: 0;
    margin-bottom: 8px;
    /* 余白も調整 */
    color: #34495e;
    font-size: 0.9rem !important;
    /* 他のテキストに合わせて小さく */
    font-weight: 600;
    /* 少し太くして視認性を保つ */
    line-height: 1.3;
}

/* 更新内容の見出し */
.info-panel h4 {
    margin-top: 12px;
    margin-bottom: 6px;
    color: #34495e;
    font-size: 0.85rem !important;
    /* h3より少し小さく */
    font-weight: 600;
    line-height: 1.3;
}

/* 本文テキスト */
.info-panel p {
    font-size: 0.8rem !important;
    /* 統一サイズ */
    line-height: 1.4;
    color: #555;
    margin-bottom: 6px;
}

/* 連絡先セクション */
.info-panel #contactSection {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid #eee;
}

.info-panel #contactSection h5 {
    font-size: 0.8rem !important;
    /* 統一サイズ */
    margin-bottom: 4px;
    color: #555;
    font-weight: 600;
}

.info-panel #contactSection p {
    font-size: 0.75rem !important;
    /* 連絡先は少し小さく */
    margin-bottom: 0;
}

/* スマホ対応 */
@media (max-width: 767px) {
    .info-panel {
        width: calc(100vw - 24px);
        max-width: none;
        right: 12px;
        bottom: 55px;
        padding: 12px;
        font-size: 0.75rem;
    }

    .info-panel h3 {
        font-size: 0.85rem !important;
        margin-bottom: 6px;
    }

    .info-panel h4 {
        font-size: 0.8rem !important;
        margin-bottom: 4px;
    }

    .info-panel p {
        font-size: 0.75rem !important;
        line-height: 1.3;
        margin-bottom: 4px;
    }

    .info-panel #contactSection h5 {
        font-size: 0.75rem !important;
    }

    .info-panel #contactSection p {
        font-size: 0.7rem !important;
    }
}

/* =======================================
   フッター右寄せ + iボタン干渉回避
   ======================================= */

.footer {
    margin-top: auto;
    background-color: #f8f9fa;
    border-top: 1px solid #e0e0e0;
    font-size: 0.85rem;
    padding: 0.75rem 0 !important;
}

/* フッター内のコンテナ */
.footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    /* iボタン分の右余白を確保 */
    padding-right: 70px;
}

/* 左側：コピーライト（デフォルトの左寄せを明示） */
.footer .col-md-6:first-child {
    text-align: left;
}

/* 右側：連絡先・バージョン */
.footer .col-md-6:last-child {
    /* 右寄せを維持 */
    text-align: right;
}

.footer-text {
    color: #6c757d;
    margin: 0;
    line-height: 1.2;
}

.contact-info {
    color: #6c757d;
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.contact-info a {
    color: #495057;
    transition: color 0.2s ease;
    text-decoration: none;
}

.contact-info a:hover {
    color: #007bff;
}

.app-version {
    color: #adb5bd;
    font-size: 0.75rem;
    line-height: 1.2;
    margin-top: 0.25rem;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .footer {
        text-align: center !important;
        /* スマホでは中央寄せ */
        font-size: 0.75rem;
        padding: 0.75rem 0 !important;
    }

    .footer .container {
        /* スマホではiボタン用余白を調整 */
        padding-right: 60px;
    }

    .footer .col-md-6:first-child {
        margin-bottom: 0.5rem;
        text-align: center;
    }

    .footer .col-md-6:last-child {
        text-align: center !important;
        /* スマホでは中央寄せ */
    }

    .contact-info {
        margin-bottom: 0.25rem;
    }

    .app-version {
        font-size: 0.7rem;
    }
}

/* 非常に小さい画面での調整 */
@media (max-width: 480px) {
    .footer .container {
        padding-right: 55px;
        /* より小さいiボタン分 */
    }

    .footer {
        font-size: 0.7rem;
    }
}

/* 印刷時はフッターを隠す */
@media print {
    .footer {
        display: none !important;
    }
}

/* ログインページとパスワード再発行ページの入力フィールド視認性改善 */

/* より強力なセレクターで基本的な入力フィールドのスタイル修正 */
.auth-section .auth-container .input-group input[type="text"],
.auth-section .auth-container .input-group input[type="password"],
.auth-section .auth-container .input-group input[type="email"],
body .auth-container .input-group input[type="text"],
body .auth-container .input-group input[type="password"],
body .auth-container .input-group input[type="email"],
html .auth-container .input-group input {
    width: 100% !important;
    padding: 12px 16px !important;
    border: 2px solid #e9ecef !important;
    border-radius: 10px !important;
    font-size: 1rem !important;
    box-sizing: border-box !important;
    transition: all 0.3s ease !important;

    /* 最重要: 背景色とテキスト色を強制的に指定 */
    background: #ffffff !important;
    background-color: #ffffff !important;
    color: #2c3e50 !important;

    /* WebKit系ブラウザ対応 */
    -webkit-text-fill-color: #2c3e50 !important;
    -webkit-background-color: #ffffff !important;

    /* その他のブラウザ固有プロパティ */
    -moz-appearance: textfield !important;
    -webkit-appearance: none !important;
    appearance: none !important;
}

/* プレースホルダーのスタイル - より強力なセレクター */
.auth-section .auth-container .input-group input::placeholder,
body .auth-container .input-group input::placeholder,
html .auth-container .input-group input::placeholder,
.auth-container .input-group input::-webkit-input-placeholder,
.auth-container .input-group input::-moz-placeholder,
.auth-container .input-group input:-ms-input-placeholder {
    color: #95a5a6 !important;
    opacity: 1 !important;
    font-style: italic !important;
    -webkit-text-fill-color: #95a5a6 !important;
}

/* フォーカス時のスタイル - より強力なセレクター */
.auth-section .auth-container .input-group input:focus,
body .auth-container .input-group input:focus,
html .auth-container .input-group input:focus {
    border-color: #3498db !important;
    background: #ffffff !important;
    background-color: #ffffff !important;
    color: #2c3e50 !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1) !important;
    transform: translateY(-1px) !important;
    -webkit-text-fill-color: #2c3e50 !important;
}

/* ホバー時のスタイル */
.auth-section .auth-container .input-group input:hover,
body .auth-container .input-group input:hover {
    border-color: #bdc3c7 !important;
    background: #ffffff !important;
    background-color: #ffffff !important;
    color: #2c3e50 !important;
    -webkit-text-fill-color: #2c3e50 !important;
}

/* オートフィル時のスタイル（ブラウザによる自動入力） */
.auth-container .input-group input:-webkit-autofill,
.auth-container .input-group input:-webkit-autofill:hover,
.auth-container .input-group input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 30px #ffffff inset !important;
    -webkit-text-fill-color: #2c3e50 !important;
    background-color: #ffffff !important;
    color: #2c3e50 !important;
}

/* Firefox対応 */
.auth-container .input-group input:-moz-autofill {
    background-color: #ffffff !important;
    color: #2c3e50 !important;
}

/* 無効化された入力フィールド */
.auth-container .input-group input:disabled {
    background-color: #f8f9fa !important;
    color: #6c757d !important;
    border-color: #dee2e6;
    cursor: not-allowed;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {

    .auth-container .input-group input[type="text"],
    .auth-container .input-group input[type="password"],
    .auth-container .input-group input[type="email"] {
        padding: 10px 14px;
        font-size: 16px;
        /* iOS Safariでのズーム防止 */
        background-color: #ffffff !important;
        color: #2c3e50 !important;
    }
}

/* iOS Safari特有の問題対応 */
@supports (-webkit-touch-callout: none) {

    .auth-container .input-group input[type="text"],
    .auth-container .input-group input[type="password"],
    .auth-container .input-group input[type="email"] {
        -webkit-appearance: none;
        appearance: none;
        background-color: #ffffff !important;
        color: #2c3e50 !important;
        -webkit-text-fill-color: #2c3e50 !important;
    }
}

/* ラベルの視認性も改善 */
.auth-container .input-group label {
    display: block;
    font-weight: 600;
    color: #34495e;
    margin-bottom: 8px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.auth-container .input-group label i {
    color: #3498db;
    width: 16px;
    text-align: center;
    font-size: 0.9rem;
}

/* 追加: 特定のブラウザでの問題対応 */
.auth-container .input-group input {
    /* Edge/Chrome系での透明化防止 */
    -webkit-background-clip: text;
    background-clip: text;
}

/* 特に重要: すべての状態での強制的なテキスト色指定 */
.auth-container input,
.auth-container input[type="text"],
.auth-container input[type="password"],
.auth-container input[type="email"],
.auth-section input,
.auth-section input[type="text"],
.auth-section input[type="password"],
.auth-section input[type="email"] {
    color: #2c3e50 !important;
    background: #ffffff !important;
    background-color: #ffffff !important;
    -webkit-text-fill-color: #2c3e50 !important;
    -moz-text-fill-color: #2c3e50 !important;
}

/* 入力中のテキスト色を強制 */
.auth-container input:not(:placeholder-shown),
.auth-section input:not(:placeholder-shown) {
    color: #2c3e50 !important;
    -webkit-text-fill-color: #2c3e50 !important;
}

/* CSS変数を使用した最終手段 */
:root {
    --auth-input-text-color: #2c3e50;
    --auth-input-bg-color: #ffffff;
}

.auth-container .input-group input {
    color: var(--auth-input-text-color) !important;
    background-color: var(--auth-input-bg-color) !important;
    -webkit-text-fill-color: var(--auth-input-text-color) !important;
}

.badge {
    font-size: 0.75em;
    padding: 0.25em 0.5em;
    border-radius: 0.25rem;
}

.bg-warning {
    background-color: #ffc107 !important;
}

.text-dark {
    color: #212529 !important;
}

.user-list-table th,
.user-list-table td {
    padding: 8px 6px;
    font-size: 0.85em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
    vertical-align: middle;
}

.user-list-table th:first-child,
.user-list-table td:first-child {
    max-width: 40px;
}

.user-list-table th:last-child,
.user-list-table td:last-child {
    max-width: 80px;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .user-list-table {
        min-width: 900px;
        /* 幅を少し広げる */
    }

    .user-list-table th,
    .user-list-table td {
        padding: 4px 2px;
        font-size: 0.7em;
        max-width: 100px;
    }

    .badge {
        font-size: 0.65em;
        padding: 0.2em 0.4em;
    }
}

/* ナビゲーションボタンの統一スタイル */
.navbar-nav .nav-link.btn {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 38px !important;
    /* 高さを統一 */
    min-width: 120px !important;
    /* 最小幅を統一 */
    padding: 8px 16px !important;
    /* パディングを統一 */
    font-size: 0.9rem !important;
    /* フォントサイズを統一 */
    font-weight: 500 !important;
    /* フォントの太さを統一 */
    border-radius: 6px !important;
    /* 角の丸みを統一 */
    text-align: center !important;
    white-space: nowrap !important;
    line-height: 1.2 !important;
    margin: 2px !important;
    /* 上下の余白を統一 */
}

/* アイコンと文字の間隔を統一 */
.navbar-nav .nav-link.btn i {
    margin-right: 6px !important;
    font-size: 0.85rem !important;
}

/* 各ボタンの個別色設定 */
.navbar-nav .nav-link.btn-primary {
    background-color: #007bff !important;
    border-color: #007bff !important;
    color: #ffffff !important;
}

.navbar-nav .nav-link.btn-primary:hover {
    background-color: #0056b3 !important;
    border-color: #0056b3 !important;
    color: #ffffff !important;
}

.navbar-nav .nav-link.btn-danger {
    background-color: #dc3545 !important;
    border-color: #dc3545 !important;
    color: #ffffff !important;
}

.navbar-nav .nav-link.btn-danger:hover {
    background-color: #c82333 !important;
    border-color: #c82333 !important;
    color: #ffffff !important;
}

/* アカウント名変更ボタン */
.change-username-button {
    background-color: #fbad24 !important;
    color: #ffffff !important;
    border: none
}

.change-username-button:hover {
    background-color: #dd8c09 !important;
    border-color: #dd8c09 !important;
    color: #ffffff !important;
}

/* アカウント名変更ボタン - より強力なセレクター */
.navbar-nav .nav-link.btn.change-username-button,
a.nav-link.btn.change-username-button,
.change-username-button {
    background-color: #fbad24 !important;
    color: #ffffff !important;
    border: none !important;
    -webkit-text-fill-color: #ffffff !important;
    /* Safari対応 */
}

.navbar-nav .nav-link.btn.change-username-button:hover,
a.nav-link.btn.change-username-button:hover,
.change-username-button:hover {
    background-color: #dd8c09 !important;
    border-color: #dd8c09 !important;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
    /* Safari対応 */
}

/* 追加：リンクの文字色を強制的に白に */
.change-username-button,
.change-username-button:link,
.change-username-button:visited,
.change-username-button:active {
    color: #ffffff !important;
    text-decoration: none !important;
}

.favicon-fallback {
    background-image: url("/static/NapoleonIcon.png");
    background-size: 16px 16px;
}

/* =======================================
   章別アコーディオン進捗のスタイル
   ======================================= */

.progress-accordion {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chapter-progress-item {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.2s ease;
}

.chapter-progress-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.chapter-progress-header {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid #e0e0e0;
    transition: background-color 0.2s ease;
    user-select: none;
}

.chapter-progress-header:hover {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
}

.chapter-progress-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chapter-toggle-icon {
    font-size: 1.2em;
    color: #495057;
    transition: transform 0.2s ease;
    width: 20px;
    text-align: center;
}

.chapter-title {
    font-size: 1.2em;
    font-weight: 600;
    color: #2c3e50;
}

.chapter-summary {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.mastered-count {
    font-size: 1.1em;
    font-weight: 600;
    color: #27ae60;
}

.chapter-percentage {
    font-size: 0.9em;
    color: #6c757d;
}

/* 章の進捗バー */
.chapter-progress-bar-container {
    height: 8px;
    background-color: #e9ecef;
    margin: 0 20px 20px 20px;
    border-radius: 4px;
    overflow: hidden;
}

.chapter-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #28a745 0%, #20c997 100%);
    border-radius: 4px;
    transition: width 0.8s ease-in-out;
}

/* 単元詳細エリア */
.unit-details {
    padding: 0 20px 20px 20px;
    background-color: #f8f9fa;
    border-top: 1px solid #e0e0e0;
}

.unit-progress-item {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.unit-progress-item:last-child {
    margin-bottom: 0;
}

.unit-progress-item h5 {
    color: #2c3e50;
    font-size: 1.1em;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #e9ecef;
}

.unit-progress-item p {
    margin-bottom: 6px;
    color: #555;
    font-size: 0.95em;
}

/* 単元の進捗バー */
.unit-progress-bar-container {
    background-color: #e9ecef;
    border-radius: 6px;
    height: 8px;
    margin-top: 10px;
    overflow: hidden;
}

.unit-progress-bar {
    background: linear-gradient(90deg, #007bff 0%, #0056b3 100%);
    height: 100%;
    border-radius: 6px;
    transition: width 0.8s ease-in-out;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .chapter-progress-header {
        padding: 15px;
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .chapter-progress-info {
        gap: 8px;
    }

    .chapter-title {
        font-size: 1.0em;
        line-height: 1.3;
    }

    .chapter-summary {
        align-items: flex-start;
        width: 100%;
    }

    .mastered-count {
        font-size: 1.0em;
    }

    .chapter-percentage {
        font-size: 0.85em;
    }

    .chapter-progress-bar-container {
        margin: 0 15px 15px 15px;
    }

    .unit-details {
        padding: 0 15px 15px 15px;
    }

    .unit-progress-item {
        padding: 12px;
    }

    .unit-progress-item h5 {
        font-size: 1.0em;
        line-height: 1.3;
    }

    .unit-progress-item p {
        font-size: 0.9em;
    }
}

@media (max-width: 480px) {
    .chapter-progress-header {
        padding: 12px;
    }

    .chapter-title {
        font-size: 0.95em;
    }

    .mastered-count {
        font-size: 0.95em;
    }

    .chapter-percentage {
        font-size: 0.8em;
    }

    .unit-progress-item {
        padding: 10px;
    }

    .unit-progress-item h5 {
        font-size: 0.95em;
    }

    .unit-progress-item p {
        font-size: 0.85em;
    }
}

/* style.css の末尾に以下を追加 */

/* =======================================
  個別スコア表示のスタイル
  ======================================= */

.current-user-stats {
    background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
    border: 2px solid #2196f3;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.15);
}

.current-user-stats h4 {
    color: #1565c0;
    font-size: 1.2em;
    margin-bottom: 15px;
    text-align: center;
    border-bottom: 2px solid #90caf9;
    padding-bottom: 8px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.stat-item {
    background-color: #ffffff;
    border: 1px solid #e3f2fd;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.stat-label {
    display: block;
    font-size: 0.9em;
    color: #666;
    margin-bottom: 5px;
    font-weight: 500;
}

.stat-value {
    display: block;
    font-size: 1.6em;
    font-weight: bold;
    color: #1976d2;
    margin-bottom: 3px;
}

.stat-value.main-score {
    font-size: 2em;
    color: #d32f2f;
    text-shadow: 1px 1px 2px rgba(211, 47, 47, 0.2);
}

.stat-description {
    display: block;
    font-size: 0.75em;
    color: #999;
    font-style: italic;
    line-height: 1.2;
}

.basic-stats {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 6px;
    padding: 12px;
    margin-top: 15px;
    border-left: 4px solid #4caf50;
}

.basic-stats p {
    margin: 0;
    font-size: 0.9em;
    color: #333;
    line-height: 1.4;
}

/* ランキングテーブルで現在のユーザー行をハイライト */
.current-user-row {
    background-color: #fff3e0 !important;
    border-left: 4px solid #ff9800 !important;
    font-weight: 600;
}

.current-user-row:hover {
    background-color: #ffe0b2 !important;
}

/* バッジスタイル */
.badge.bg-primary {
    background-color: #2196f3 !important;
    color: white;
    font-size: 0.7em;
    padding: 0.2em 0.5em;
    border-radius: 0.25rem;
    margin-left: 5px;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .current-user-stats {
        padding: 15px;
        margin-bottom: 20px;
    }

    .current-user-stats h4 {
        font-size: 1.1em;
        margin-bottom: 12px;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 10px;
        margin-bottom: 15px;
    }

    .stat-item {
        padding: 10px;
    }

    .stat-label {
        font-size: 0.8em;
    }

    .stat-value {
        font-size: 1.3em;
    }

    .stat-value.main-score {
        font-size: 1.6em;
    }

    .stat-description {
        font-size: 0.7em;
    }

    .basic-stats {
        padding: 10px;
    }

    .basic-stats p {
        font-size: 0.8em;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .stat-item {
        padding: 8px;
    }

    .stat-value {
        font-size: 1.2em;
    }

    .stat-value.main-score {
        font-size: 1.4em;
    }

    /* 基本統計を縦並びに */
    .basic-stats p {
        font-size: 0.75em;
        line-height: 1.6;
    }
}

/* 印刷時は個別スコアも表示 */
@media print {
    .current-user-stats {
        background: #f5f5f5 !important;
        border: 1px solid #000 !important;
        box-shadow: none !important;
        page-break-inside: avoid;
    }

    .stat-value,
    .stat-value.main-score {
        color: #000 !important;
        text-shadow: none !important;
    }
}

/* base.html または progress.html の <style> セクションに追加してください */

.stats-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.stats-title-section {
    flex: 1;
    min-width: 200px;
}

.rank-section {
    flex: 0 0 auto;
    text-align: center;
    min-width: 150px;
    margin-left: 20px;
}

.rank-section h4 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.rank-display {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    display: inline-block;
    min-width: 120px;
}

.rank-number {
    font-size: 2.2em;
    font-weight: bold;
    display: block;
    line-height: 1;
}

.rank-text {
    font-size: 1.1em;
    font-weight: 600;
    margin-left: 5px;
}

.rank-total {
    font-size: 0.9em;
    opacity: 0.9;
    display: block;
    margin-top: 5px;
}

/* 特別な順位のスタイル */
.rank-display.rank-1 {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #333;
}

.rank-display.rank-2 {
    background: linear-gradient(135deg, #C0C0C0 0%, #808080 100%);
    color: #333;
}

.rank-display.rank-3 {
    background: linear-gradient(135deg, #CD7F32 0%, #A0522D 100%);
    color: white;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .stats-header {
        flex-direction: column;
        align-items: center;
    }

    .rank-section {
        margin-left: 0;
        margin-top: 15px;
    }
}

/* base.html または progress.html の <style> セクションに追加してください */

/* ランキングヘッダーのレイアウト */
.ranking-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
    gap: 30px;
    flex-wrap: wrap;
}

.ranking-title-section {
    flex: 1;
    min-width: 300px;
}

.ranking-title-section h3 {
    margin-bottom: 8px;
    color: #2c3e50;
    font-size: 1.4em;
}

.ranking-title-section p {
    margin-bottom: 0;
    color: #6c757d;
    font-size: 0.95em;
}

.user-rank-section {
    flex: 0 0 auto;
    text-align: center;
    min-width: 140px;
}

.user-rank-section h4 {
    margin-bottom: 12px;
    color: #2c3e50;
    font-size: 1.1em;
    font-weight: 600;
}

.rank-display {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 18px;
    border-radius: 10px;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
    display: inline-block;
    min-width: 110px;
    transition: transform 0.2s ease;
}

.rank-display:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.15);
}

.rank-number {
    font-size: 1.8em;
    font-weight: bold;
    display: block;
    line-height: 1;
}

.rank-text {
    font-size: 1em;
    font-weight: 600;
    margin-left: 4px;
}

.rank-total {
    font-size: 0.85em;
    opacity: 0.9;
    display: block;
    margin-top: 4px;
}

.rank-icon {
    font-size: 1.1em;
    display: block;
    margin-bottom: 4px;
}

/* 特別な順位のスタイル */
.rank-display.rank-1 {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #333;
    border: 2px solid #FFD700;
}

.rank-display.rank-2 {
    background: linear-gradient(135deg, #C0C0C0 0%, #808080 100%);
    color: #333;
    border: 2px solid #C0C0C0;
}

.rank-display.rank-3 {
    background: linear-gradient(135deg, #CD7F32 0%, #A0522D 100%);
    color: white;
    border: 2px solid #CD7F32;
}

/* レスポンシブ対応 */
@media (max-width: 992px) {
    .ranking-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
    }

    .ranking-title-section {
        min-width: auto;
    }

    .user-rank-section {
        min-width: auto;
    }
}

@media (max-width: 576px) {
    .ranking-header {
        gap: 15px;
    }

    .rank-display {
        min-width: 100px;
        padding: 10px 15px;
    }

    .rank-number {
        font-size: 1.6em;
    }
}

/* admin.html に追加する管理者ランキング専用CSS（最適化版） */

/* 管理者ランキングセクション全体 */
.admin-panel {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #eee;
}

.room-selector-container h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #495057;
}

/* ランキング表示エリア */
#admin-ranking-container {
    min-height: 300px;
}

/* 初期メッセージ */
#admin-ranking-initial {
    text-align: center;
    padding: 40px 20px;
    color: #6c757d;
}

#admin-ranking-initial .fa-trophy {
    color: #ffc107;
    margin-bottom: 15px;
}

/* ローディング表示 */
#admin-ranking-loading {
    text-align: center;
    padding: 40px 20px;
}

.spinner-border {
    width: 2.5rem;
    height: 2.5rem;
}

/* 統計サマリー */
.ranking-summary {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #dee2e6;
}

.summary-card {
    text-align: center;
    padding: 15px;
    background-color: white;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
    transition: transform 0.2s ease;
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
}

.summary-card h5 {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 8px;
    font-weight: 500;
}

.summary-value {
    font-size: 1.6rem;
    font-weight: bold;
    color: #2c3e50;
    display: block;
    line-height: 1.2;
}

/* ランキングテーブル */
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.table {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.table th {
    border-top: none;
    font-weight: 600;
    font-size: 0.85rem;
    background-color: #343a40;
    color: white;
    text-align: center;
    vertical-align: middle;
    padding: 12px 8px;
}

.table td {
    vertical-align: middle;
    text-align: center;
    padding: 10px 8px;
    border-bottom: 1px solid #dee2e6;
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

/* 順位表示のアイコン */
.fas.fa-crown,
.fas.fa-medal {
    font-size: 0.8rem;
}

.text-warning {
    color: #ffc107 !important;
}

.text-secondary {
    color: #6c757d !important;
}

.text-info {
    color: #17a2b8 !important;
}

.text-primary {
    color: #007bff !important;
}

/* 操作ボタンセクション */
.admin-ranking-actions {
    padding: 15px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    text-align: center;
    border: 1px solid #dee2e6;
    margin-top: 20px;
}

.admin-ranking-actions button {
    margin: 0 5px 5px 0;
    font-size: 0.85rem;
    padding: 8px 16px;
}

/* エラー表示 */
#admin-ranking-error {
    text-align: center;
    margin: 20px 0;
    border-radius: 8px;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .ranking-summary {
        padding: 15px;
    }

    .summary-card {
        margin-bottom: 10px;
        padding: 12px;
    }

    .summary-value {
        font-size: 1.4rem;
    }

    .table {
        font-size: 0.8rem;
    }

    .table th,
    .table td {
        padding: 8px 4px;
    }

    .admin-ranking-actions {
        padding: 12px;
    }

    .admin-ranking-actions button {
        margin: 2px;
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .summary-value {
        font-size: 1.2rem;
    }

    .table {
        font-size: 0.7rem;
    }

    .table th,
    .table td {
        padding: 6px 2px;
    }

    /* スマホでは横スクロール可能にする */
    .table-responsive {
        font-size: 0.7rem;
    }

    .admin-ranking-actions button {
        display: block;
        width: 100%;
        margin: 5px 0;
    }
}

/* アニメーション効果 */
.admin-ranking-actions {
    animation: slideUp 0.3s ease-out;
}

#admin-ranking-table-container {
    animation: fadeIn 0.5s ease-in;
}

.summary-card {
    animation: cardPop 0.4s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes cardPop {
    0% {
        opacity: 0;
        transform: scale(0.9);
    }

    50% {
        opacity: 0.8;
        transform: scale(1.02);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* admin.html に追加するコンパクト部屋選択のCSS */

/* 部屋選択セクション（コンパクト化） */
.room-selector-container {
    margin-bottom: 15px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.room-selector-container h4 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: #495057;
}

/* ドロップダウン形式 */
.room-selector-dropdown {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.room-selector-dropdown select {
    flex: 1;
    min-width: 200px;
    font-size: 0.9rem;
}

.room-selector-dropdown button {
    font-size: 0.85rem;
    padding: 6px 12px;
    white-space: nowrap;
}

/* コンパクトボタン形式 */
.room-buttons-compact {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
    max-height: 120px;
    overflow-y: auto;
    padding: 8px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    background-color: white;
}

.room-button-compact {
    padding: 6px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 0.8rem;
    text-align: center;
    min-height: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2px;
}

.room-button-compact:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.room-button-compact.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    color: white;
    box-shadow: 0 2px 6px rgba(0, 123, 255, 0.3);
}

.room-button-compact .room-text {
    font-weight: 600;
    font-size: 0.85rem;
}

.room-button-compact .user-count {
    opacity: 0.8;
    font-size: 0.7rem;
}

/* 表示切り替えボタン */
.view-toggle {
    text-align: center;
}

.view-toggle button {
    font-size: 0.75rem;
    padding: 4px 8px;
}

/* 選択中の部屋表示（バッジ形式） */
.selected-room-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 15px;
    box-shadow: 0 2px 6px rgba(0, 123, 255, 0.3);
}

.selected-room-badge i {
    font-size: 0.9rem;
}

.selected-room-badge button {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 12px;
}

/* スクロールバーのスタイリング */
.room-buttons-compact::-webkit-scrollbar {
    width: 4px;
}

.room-buttons-compact::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 2px;
}

.room-buttons-compact::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 2px;
}

.room-buttons-compact::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .room-selector-container {
        padding: 12px;
        margin-bottom: 12px;
    }

    .room-selector-dropdown {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .room-selector-dropdown select {
        min-width: auto;
    }

    .room-buttons-compact {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        max-height: 100px;
        gap: 6px;
    }

    .room-button-compact {
        min-height: 45px;
        padding: 4px 6px;
        font-size: 0.75rem;
    }

    .room-button-compact .room-text {
        font-size: 0.8rem;
    }

    .room-button-compact .user-count {
        font-size: 0.65rem;
    }

    .selected-room-badge {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .room-selector-container h4 {
        font-size: 0.95rem;
        margin-bottom: 8px;
    }

    .room-buttons-compact {
        grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
        max-height: 80px;
    }

    .room-button-compact {
        min-height: 40px;
        font-size: 0.7rem;
    }

    .room-button-compact .room-text {
        font-size: 0.75rem;
    }

    .room-button-compact .user-count {
        font-size: 0.6rem;
    }

    .selected-room-badge {
        padding: 5px 8px;
        font-size: 0.75rem;
        gap: 6px;
    }

    .selected-room-badge button {
        font-size: 0.65rem;
        padding: 1px 4px;
    }
}

/* アニメーション効果 */
.selected-room-badge {
    animation: badgeSlideIn 0.3s ease-out;
}

@keyframes badgeSlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 答えを見るボタンの無効化スタイル */
.show-answer-button:disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    background-color: #6c757d !important;
}

.show-answer-button:disabled:hover {
    background-color: #6c757d !important;
    transform: none !important;
}

/* pointer-events無効化の確実な適用 */
.show-answer-button[style*="pointer-events: none"] {
    pointer-events: none !important;
}

.recommended-essay-link {
    display: block;
    text-decoration: none;
    color: #34495e;
    padding: 10px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.recommended-essay-link:hover {
    background-color: #ecf0f1;
}

.recommended-essay-link strong {
    color: #2980b9;
    font-size: 0.9em;
}

.recommended-essay-link p {
    font-size: 0.85em;
    margin: 5px 0 0 0;
    color: #555;
    line-height: 1.4;
}

.no-recommendation {
    padding: 15px;
    text-align: center;
    color: #6c757d;
    font-size: 0.9em;
    list-style-type: none;
}

.warm-up-quiz-section {
    text-align: center;
    margin: 25px 0;
}

.warm-up-quiz-section .btn {
    font-weight: 600;
    padding: 12px 25px;
    border-radius: 25px;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.2);
    transition: all 0.3s ease;
}

.warm-up-quiz-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.3);
}

/* 準備運動クイズ用のスタイル */
.quiz-answer {
    /* 解答欄に最低限の高さを設定し、場所を確保する */
    min-height: 60px;
    padding: 10px;
    background-color: #fff3cd;
    border-radius: 5px;
    color: #856404;
    font-weight: 500;
}

/* 解答欄はガタつき防止のため、高さを維持する visibility: hidden を使う */
.quiz-answer.is-hidden {
    visibility: hidden;
}

/* ボタンはレイアウトから完全に消すため、display: none を使う */
.quiz-buttons .btn.is-hidden {
    display: none;
}

/* ボタンの表示形式を inline-block に統一 */
.quiz-buttons .btn {
    display: inline-block;
}

/* 準備運動クイズのレイアウト安定化 */
#quizCardContainer {
    min-height: 220px;
    /* スマホ画面でも十分な高さを確保 */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* 準備運動クイズのボタンレイアウト修正 */
.quiz-buttons {
    display: flex;
    justify-content: center;
    /* ボタンを中央揃え */
    align-items: center;
    min-height: 50px;
    /* ボタンエリアの高さを確保 */
    gap: 10px;
    /* ボタン間の隙間 */
}

/* static/style.css の一番下に追加 */

/* =======================================
   今日の10問 クイズモーダル用スタイル
   ======================================= */

.daily-quiz-modal .modal-dialog {
    max-width: 600px;
}

.daily-quiz-modal .modal-header {
    background-color: #27ae60;
    color: white;
}

.daily-quiz-modal .modal-title i {
    margin-right: 8px;
}

.daily-quiz-modal .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

#dailyQuizContainer {
    text-align: center;
    padding: 10px;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 1.1em;
}

.quiz-progress-text {
    font-weight: bold;
    background-color: #f0f0f0;
    padding: 5px 10px;
    border-radius: 15px;
}

.quiz-timer {
    font-weight: bold;
    color: #e74c3c;
    background-color: #fdd;
    padding: 5px 10px;
    border-radius: 15px;
}

.quiz-question-text {
    font-size: 1.4em;
    font-weight: 600;
    margin-bottom: 25px;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quiz-choices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.choice-btn {
    padding: 15px;
    font-size: 1.1em;
    border: 2px solid #bdc3c7;
    background-color: white;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.choice-btn:hover:not(:disabled) {
    background-color: #ecf0f1;
    border-color: #3498db;
}

.choice-btn:disabled {
    cursor: not-allowed;
}

.choice-btn.correct {
    background-color: #d4edda;
    border-color: #28a745;
    color: #155724;
    font-weight: bold;
}

.choice-btn.incorrect {
    background-color: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

.feedback-icon {
    font-size: 2em;
    margin-left: 10px;
}

/* クイズ結果画面 */
.quiz-result-view h4 {
    color: #27ae60;
    font-size: 1.8em;
    margin-bottom: 15px;
}

.result-summary {
    font-size: 1.2em;
    margin-bottom: 20px;
}

.result-summary span {
    font-weight: bold;
}

.ranking-table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

.ranking-table th,
.ranking-table td {
    padding: 8px;
    border-bottom: 1px solid #ddd;
}

.ranking-table th {
    background-color: #f2f2f2;
}

.current-user-rank {
    background-color: #fff3cd;
    font-weight: bold;
}

/* ランキング表の見出しを見やすく */
.daily-quiz-modal .ranking-table th {
    background-color: #27ae60;
    /* ヘッダーと同じ緑色 */
    color: white;
    font-weight: 600;
}

/* 自分の順位をハイライト（より分かりやすい色に） */
.daily-quiz-modal .current-user-rank {
    background-color: #e8f4fd !important;
    /* 明るい青色 */
    color: #1565c0;
    font-weight: bold;
    border-left: 4px solid #3498db;
    border-right: 4px solid #3498db;
}

/* 全体のテキストを少し濃く */
.daily-quiz-modal .result-summary p,
.daily-quiz-modal .ranking-table td {
    color: #34495e;
}

/* =======================================
   メイン画面コントロールボタンの配色
   ======================================= */
.bottom-controls .btn {
    font-weight: 600;
    border: none;
    transition: all 0.2s ease-in-out;
    padding: 12px 20px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    /* アイコンとテキストの間隔 */
}

.bottom-controls .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 1. 学習開始 (メインボタン) */
.btn-start {
    background-color: #007bff;
    /* プライマリーブルー */
    color: white;
}

.btn-start:hover {
    background-color: #0056b3;
    color: white;
}

/* 2. 選択リセット (ユーティリティボタン) */
.btn-reset {
    background-color: #afbfce;
    color: white;
}

.btn-reset:hover {
    background-color: #7d8a96;
    color: white;
}

/* 3. 今日の10問 (特別コンテンツ) */
.btn-daily {
    background-color: #28a745;
    color: white;
}

.btn-daily:hover {
    background-color: #218838;
    color: white;
}

/* 4. 苦手問題一覧 (ユーティリティボタン) */
.btn-weak {
    background-color: #193c5e;
    color: #ffffff;
    border: 1px solid #193c5e;
}

.btn-weak:hover {
    background-color: #1a344e;
    color: #ffffff;
}

/* 5. 論述問題集 (特別コンテンツ) */
.btn-essay {
    background-color: #2f295b;
    color: white;
}

.btn-essay:hover {
    background-color: #070013;
    color: white;
}

/* =======================================
   今日の10問 5位以下の自分の順位表示
   ======================================= */
.ranking-table tfoot .rank-ellipsis td {
    border: none;
    padding: 4px 0;
    color: #adb5bd;
    font-size: 1.2em;
}

.ranking-table .out-of-top5-rank td {
    border-top: 2px dashed #0d6efd;
    /* 区切り線 */
}

/* =======================================
   月間ランキング表示 (モーダル内)
   ======================================= */
.quiz-result-view .result-divider {
    margin: 25px 0;
    border-top: 1px dashed #ced4da;
}

.quiz-result-view h5 {
    font-weight: 600;
    color: #495057;
    margin-bottom: 10px;
    text-align: center;
}

.quiz-result-view h5 i {
    margin-right: 8px;
    color: #ffc107;
    /* アイコンを金色に */
}

.quiz-result-view h5 .fa-medal {
    color: #0d6efd;
    /* 日次アイコンを青色に */
}

.participation-count {
    font-size: 0.9em;
    font-style: italic;
}

/* =======================================
   月初の月間結果ポップアップ
   ======================================= */
.monthly-result-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom: none;
}

.monthly-result-header .modal-title {
    font-weight: 600;
}

.monthly-result-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

.monthly-result-modal-content .modal-body h3 {
    font-weight: bold;
    color: #667eea;
}

.user-monthly-summary {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    border: 1px solid #e9ecef;
}

.user-monthly-summary h4 {
    font-weight: 700;
    color: #495057;
}

.user-monthly-summary h4 span {
    color: #dc3545;
    /* 順位を赤色で強調 */
    font-size: 1.4em;
}

.user-monthly-summary h5 {
    color: #6c757d;
    font-weight: 600;
}

.user-monthly-summary h5 span {
    color: #0d6efd;
    font-size: 1.2em;
}

/* Loading Message Style */
.loading-message {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 1.1em;
    background-color: #f8f9fa;
    border-radius: 6px;
    margin-top: 10px;
}

.loading-message i {
    margin-right: 10px;
    color: #3498db;
}

.no-recommendation {
    text-align: center;
    padding: 15px;
    color: #7f8c8d;
    font-style: italic;
}

/* =========================================
   RPG Mode Styles (Chronicle Quest)
   ========================================= */

/* Banner Trigger */
.rpg-banner {
    background: linear-gradient(135deg, #2c3e50 0%, #000000 100%);
    border: 2px solid #e74c3c;
    border-radius: 12px;
    margin-bottom: 20px;
    cursor: pointer;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
    transition: transform 0.2s;
    user-select: none;
    animation: bannerSinisterPulse 8s infinite alternate ease-in-out;
}

.rpg-banner:hover {
    transform: scale(1.02);
}

.rpg-banner-content {
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: white;
    position: relative;
    z-index: 2;
}

.distortion-void {
    width: 60px;
    height: 60px;
    position: relative;
    display: grid;
    place-items: center;
    z-index: 3;
}

.distortion-void>* {
    grid-area: 1/1;
}

.void-core {
    width: 24px;
    height: 24px;
    background: #000;
    border-radius: 50%;
    box-shadow: 0 0 15px #e74c3c, 0 0 30px #9b59b6;
    z-index: 5;
    animation: voidBreathe 4s infinite alternate ease-in-out;
    /* Stable but alive */
}

.void-aura {
    width: 64px;
    height: 64px;
    background: radial-gradient(circle, rgba(155, 89, 182, 0.5) 0%, transparent 75%);
    border-radius: 50%;
    z-index: 2;
    animation: auraSubtle 6s infinite alternate ease-in-out;
}

.pulse-ring {
    width: 50px;
    height: 50px;
    border: 2px solid rgba(155, 89, 182, 0.5);
    border-radius: 50%;
    z-index: 1;
    animation: ripplePulseGrid 1.5s infinite;
}

/* pulse-ring handles nested after for extra ripple */
.pulse-ring::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(231, 76, 60, 0.4);
    border-radius: 50%;
    animation: ripplePulseGrid 1.5s infinite 0.75s;
}

.text-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    z-index: 3;
}

.alert-label {
    font-size: 0.7rem;
    color: #e74c3c;
    font-weight: 900;
    letter-spacing: 2px;
    animation: textGlitch 3s infinite;
    /* Intermittent glitch */
    text-shadow: 0 0 5px rgba(231, 76, 60, 0.5);
}

.distortion-text {
    font-weight: bold;
    font-size: 1.1rem;
    text-shadow: 0 0 8px rgba(155, 89, 182, 0.6), 0 0 15px rgba(0, 0, 0, 0.8);
    animation: textGlitch 4s infinite 0.5s;
    /* Slightly staggered */
}

.btn-rpg-start {
    background: #e74c3c;
    border: none;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    box-shadow: 0 0 10px #e74c3c;
}

/* Modal Overlay */
.rpg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.rpg-modal-container {
    width: 90%;
    max-width: 500px;
    background: #1a1a1a;
    border: 1px solid #444;
    border-radius: 16px;
    color: white;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    max-height: 90vh;
    overflow-y: auto;
}

/* Screens */
.rpg-screen {
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Intro Screen */
.rpg-header {
    margin-bottom: 20px;
}

.mission-tag {
    background: #e74c3c;
    padding: 2px 8px;
    font-size: 0.8rem;
    border-radius: 4px;
    font-weight: bold;
    letter-spacing: 1px;
}

.rpg-title {
    margin: 10px 0 0;
    font-size: 1.5rem;
    color: #ecf0f1;
}

.boss-preview-vertical {
    background: transparent;
    /* Clean look */
    /* Remove padding/bg if desired, or keep card style */
    /* If card style desired: background: #2c3e50; padding: 20px; border-radius: 12px; */
    width: 100%;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    /* Spacing between Name, Icon, Stars */
}

.boss-name-large {
    margin: 0;
    font-size: 1.8rem;
    /* Larger than before */
    color: #f1c40f;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: bold;
}

/* Update Boss Visual (already modified in later steps but ensure it's centered) */
/* .boss-visual is already flex centered */

.difficulty-stars-container {
    margin-top: -5px;
    /* Pull closer to image if needed */
}

.difficulty-stars {
    color: #f1c40f;
    font-size: 1.2rem;
    /* Larger stars */
    letter-spacing: 2px;
}

.mission-details {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
}

.rule-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: #bdc3c7;
}

.rule-item.warning {
    color: #e74c3c;
}

/* Buttons */
.rpg-actions {
    display: flex;
    gap: 10px;
    width: 100%;
}

.btn-rpg-primary {
    flex: 2;
    background: #e74c3c;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1rem;
}

.btn-rpg-secondary {
    flex: 1;
    background: transparent;
    color: #95a5a6;
    border: 1px solid #7f8c8d;
    padding: 12px;
    border-radius: 8px;
}

/* Battle Screen */
.battle-hud {
    width: 100%;
    margin-bottom: 20px;
}

.timer-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.timer-bar-bg {
    flex: 1;
    height: 8px;
    background: #34495e;
    border-radius: 4px;
    overflow: hidden;
}

.timer-bar-fill {
    height: 100%;
    background: #2ecc71;
    width: 100%;
    transition: width 0.2s linear, background-color 0.2s;
}

.boss-hp-container {
    display: flex;
    flex-direction: column;
    gap: 5px;
    align-items: stretch;
}

.hp-label {
    font-size: 0.8rem;
    font-weight: bold;
    color: #e74c3c;
    text-align: left;
}

.hp-bar-bg {
    height: 15px;
    background: #34495e;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid #c0392b;
}

.hp-bar-fill {
    height: 100%;
    background: #e74c3c;
    width: 100%;
    box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.3);
    transition: width 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.battle-main {
    width: 100%;
    margin-bottom: 20px;
}

.boss-avatar-battle {
    width: 100px;
    height: 100px;
    margin: 0 auto 15px;
    position: relative;
    border-radius: 50%;
    overflow: visible;
}

.boss-img-small {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 5px 8px rgba(0, 0, 0, 0.3));
    /* Softened shadow */
}

.rpg-question-box {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: bold;
}

.rpg-choices-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
}

.rpg-choice-btn {
    background: #34495e;
    color: white;
    border: none;
    padding: 15px 10px;
    border-radius: 8px;
    font-size: 0.95rem;
    min-height: 60px;
    transition: background 0.2s;
}

.rpg-choice-btn:active {
    background: #2c3e50;
}

.rpg-choice-btn.correct {
    background: #27ae60 !important;
}

.rpg-choice-btn.incorrect {
    background: #c0392b !important;
}

/* Localized Distortion (Sinister Aura) around Enemy */
.distortion-aura {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150%;
    height: 150%;
    transform: translate(-50%, -50%);
    /* Bright Red/Purple Pulse */
    background: radial-gradient(circle, rgba(200, 20, 20, 0.7) 0%, rgba(100, 0, 100, 0.2) 60%, transparent 80%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
    /* Removed mix-blend-mode just in case it's causing the grey issue on some screens */
    /* mix-blend-mode: screen; */
    filter: blur(15px);
    animation: sinisterPulse 2s infinite alternate;
}

@keyframes sinisterPulse {
    0% {
        transform: translate(-50%, -50%) scale(1.0);
        opacity: 0.6;
    }

    100% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 1.0;
    }
}

/* Story Stage - Container for characters */
/* Story Stage - Container for characters (Base Style) */

/* Damage Effect */
.damage-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    font-weight: bold;
    color: #ffcc00;
    text-shadow: 2px 2px 0 #c0392b;
    pointer-events: none;
    animation: floatUp 0.8s ease-out forwards;
    z-index: 10;
}

/* Animations */
@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes alertBlink {
    0% {
        opacity: 1;
        color: #e74c3c;
    }

    100% {
        opacity: 0.3;
        color: #9b59b6;
    }
}

@keyframes textGlitch {

    0%,
    85%,
    90%,
    95%,
    100% {
        transform: translate(0, 0);
        text-shadow: none;
        clip-path: none;
        opacity: 1;
    }

    86% {
        transform: translate(-1px, 1px);
        text-shadow: 1px 0 red;
        clip-path: inset(10% 0 80% 0);
    }

    87% {
        transform: translate(1px, -1px);
        text-shadow: -1px 0 blue;
        clip-path: inset(40% 0 20% 0);
    }

    91% {
        transform: translate(1px, 1px);
        text-shadow: 1px 0 green;
        opacity: 0.8;
    }

    92% {
        transform: translate(-1px, -1px);
        text-shadow: -1px 0 red;
        clip-path: inset(70% 0 10% 0);
    }

    96% {
        transform: translate(1px, 0px) skewX(2deg);
        opacity: 0.9;
    }

    97% {
        transform: translate(-1px, 0px) skewX(-2deg);
    }
}

@keyframes voidBreathe {
    0% {
        transform: scale(1);
        filter: brightness(1);
    }

    100% {
        transform: scale(1.1);
        filter: brightness(1.2);
    }
}

@keyframes auraSubtle {
    0% {
        transform: scale(0.9);
        opacity: 0.4;
    }

    100% {
        transform: scale(1.3);
        opacity: 0.7;
    }
}

@keyframes ripplePulseGrid {
    0% {
        transform: scale(0.5);
        opacity: 0.8;
    }

    100% {
        transform: scale(3);
        opacity: 0;
    }
}

@keyframes blink {
    50% {
        opacity: 0.5;
    }
}

@keyframes bannerSinisterPulse {
    0% {
        border-color: #e74c3c;
        box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
    }

    50% {
        border-color: #9b59b6;
        box-shadow: 0 4px 25px rgba(155, 89, 182, 0.5);
    }

    100% {
        border-color: #e74c3c;
        box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
    }
}

@keyframes floatUp {
    0% {
        transform: translate(-50%, -50%) scale(0.5);
        opacity: 1;
    }

    50% {
        transform: translate(-50%, -80%) scale(1.5);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, -100%) scale(1.2);
        opacity: 0;
    }
}

@keyframes shake {
    0% {
        transform: translate(1px, 1px) rotate(0deg);
    }

    10% {
        transform: translate(-1px, -2px) rotate(-1deg);
    }

    20% {
        transform: translate(-3px, 0px) rotate(1deg);
    }

    30% {
        transform: translate(3px, 2px) rotate(0deg);
    }

    40% {
        transform: translate(1px, -1px) rotate(1deg);
    }

    50% {
        transform: translate(-1px, 2px) rotate(-1deg);
    }

    60% {
        transform: translate(-3px, 1px) rotate(0deg);
    }

    70% {
        transform: translate(3px, 1px) rotate(-1deg);
    }

    80% {
        transform: translate(-1px, -1px) rotate(1deg);
    }

    90% {
        transform: translate(1px, 2px) rotate(0deg);
    }

    100% {
        transform: translate(1px, -2px) rotate(-1deg);
    }
}

.shake-anim {
    animation: shake 0.5s;
}

/* Result Screen */
.reward-box {
    background: #34495e;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    width: 100%;
}

.reward-row {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.reward-row:last-child {
    border: 0;
    margin: 0;
}

.reward-icon {
    font-size: 2rem;
}

.reward-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.reward-label {
    font-size: 0.8rem;
    color: #bdc3c7;
}

.reward-value {
    font-size: 1.1rem;
    color: #f1c40f;
    font-weight: bold;
}

.lose-message {
    padding: 30px;
    border: 1px solid #c0392b;
    border-radius: 8px;
    background: rgba(192, 57, 43, 0.1);
    color: #e74c3c;
    margin-bottom: 20px;
}

.cooldown-notice {
    font-size: 0.9rem;
    margin-top: 10px;
    color: #95a5a6;
}

@media (max-width: 480px) {
    .rpg-choices-grid {
        grid-template-columns: 1fr;
    }

    .rpg-choice-btn {
        min-height: 50px;
    }
}

/* Boss Icon Fix: Background Transparency simulation - REMOVED for User Uploads */
.boss-img {
    /* mix-blend-mode: multiply; REMOVED */
    /* 白背景を透過 */
    display: block;
    /* Absolute Positioning to cover everything */
    position: relative;
    z-index: 2;
    /* Image on top */
    margin: 0 auto;
}

/* Boss Visual Container Adjustment for centering */
.boss-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 0;
    /* Sinister deep void background */
    background: radial-gradient(circle, #2c0a0a 0%, #000 100%);
    border-radius: 50%;
    width: 280px;
    height: 280px;
    margin: 0 auto;
    overflow: hidden;
    /* はみ出し防止 */
    box-shadow: inset 0 0 50px rgba(231, 76, 60, 0.2), 0 0 20px rgba(0, 0, 0, 0.5);
}

/* Fallback Shadow (The ? mark) */
.boss-shadow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    color: #440000;
    z-index: 1;
    /* Behind image */
    font-weight: bold;
}

/* Ensure image fits nicely and sits on top of shadow */
.boss-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    position: relative;
    /* Ensure z-index works */
    z-index: 2;
    /* Sit above the shadow */
}

/* Battle Boss Avatar */
.boss-avatar-battle {
    width: 180px;
    height: 180px;
    margin: 0 auto 10px;
    position: relative;
    /* 背景透過効果のため */
    border-radius: 50%;
    background: radial-gradient(circle, #1a0505 0%, #000 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.boss-img-small {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

/* =======================================
   RPG Status Badge Styles
   ======================================= */
.badge-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    /* Center badges if few */
}

/* Base style for mobile (default) - likely col-4 or col-6 equivalent */
.badge-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s;
    /* Default Bootstrap col logic handles width usually, but we enforce max-width for PC */
}

.badge-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.badge-icon-med {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #bdc3c7;
    /* Default gray for unearned */
    display: block;
}

.badge-name {
    font-weight: bold;
    font-size: 0.9em;
    color: #7f8c8d;
    margin-bottom: 5px;
    display: block;
}

.badge-desc {
    font-size: 0.75em;
    color: #95a5a6;
    line-height: 1.2;
}

/* Earned State */
.badge-card.earned {
    border-color: #f1c40f;
    background: linear-gradient(to bottom right, #fff, #fffcf0);
}

.badge-card.earned .badge-icon-med {
    color: #f1c40f;
    filter: drop-shadow(0 2px 4px rgba(243, 156, 18, 0.4));
}

.badge-card.earned .badge-name {
    color: #d35400;
}

/* Desktop sizing fix */
@media (min-width: 992px) {
    .badge-card-wrapper {
        flex: 0 0 18%;
        /* 5 items per row approx */
        max-width: 180px;
    }

    .badge-icon-med {
        font-size: 2.0em;
        /* Slightly smaller icon on desktop to reduce height */
    }
}

/* Consistent Badge Card Sizing */
.badge-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    min-height: 200px;
    /* Ensure cards are tall enough */
    padding: 15px;
    background: rgba(30, 30, 30, 0.8);
    border: 1px solid #444;
}

/* Icon Container */
.badge-icon-area {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Icon (FontAwesome) in container */
.badge-icon-area i {
    font-size: 3rem;
    color: #95a5a6;
}

/* Name handling */
.badge-name {
    font-size: 0.9rem;
    font-weight: bold;
    color: #ecf0f1;
    text-align: center;
    margin-bottom: 5px;
    height: 2.4em;
    line-height: 1.2;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    width: 100%;
}

/* Grid Wrapper Override */
.badge-card-wrapper {
    width: 150px;
    margin-bottom: 20px;
}

.badge-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

/* =======================================
   URGENT FIXES for Image Sizing
   ======================================= */

/* 1. Status Page: Defeated Image Sizing Fix */
.badge-icon-area img {
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    max-height: 100% !important;
    object-fit: cover !important;
    border-radius: 50%;
}

/* 2. Intro Screen: Boss Image Sizing Fix */
.boss-visual .boss-img {
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    max-height: 100% !important;
    object-fit: cover !important;
    position: relative;
    z-index: 2;
    margin: 0 auto;
}

/* 3. Battle Screen: Boss Image Sizing Fix */
.boss-avatar-battle .boss-img-small {
    width: 135% !important;
    height: 135% !important;
    max-width: none !important;
    max-height: none !important;
    object-fit: contain !important;
    z-index: 2;
    position: relative;
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.5));
    /* Pop-out shadow */
}

/* プレミアム称号デザイン */
.premium-badge-title {
    background: linear-gradient(45deg, #B8860B, #FFD700, #FDB931, #B8860B);
    background-size: 200% auto;
    color: #ffd700;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    font-weight: 800;
    filter: drop-shadow(1px 1px 0px rgba(0, 0, 0, 0.2));
    animation: shine 4s linear infinite;
    display: inline-block;
    margin-right: 2px;
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

/* =======================================
     RPG VISUAL NOVEL & GLITCH STYLES
     ======================================= */

/* RPG Story Overlay Styles */
#rpgStoryOverlay {
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.noise-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.4'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.3;
    animation: noiseAnim 0.2s steps(4) infinite;
    z-index: 1;
}

@keyframes noiseAnim {
    0% {
        transform: translate(0, 0) scale(1.5);
        clip-path: inset(40% 0 61% 0);
    }

    20% {
        transform: translate(-10%, 10%) scale(1.5);
        clip-path: inset(92% 0 1% 0);
    }

    40% {
        transform: translate(-10%, -10%) scale(1.5);
        clip-path: inset(43% 0 1% 0);
    }

    60% {
        transform: translate(10%, 10%) scale(1.5);
        clip-path: inset(25% 0 58% 0);
    }

    80% {
        transform: translate(10%, -10%) scale(1.5);
        clip-path: inset(75% 0 5% 0);
    }

    100% {
        transform: translate(0, 0) scale(1.5);
        clip-path: inset(54% 0 7% 0);
    }
}

/* Glitch Animation for Intro (Dark Screen) */
@keyframes screenShake {
    0% {
        transform: translate(1px, 1px) rotate(0deg);
    }

    10% {
        transform: translate(-1px, -2px) rotate(-1deg);
    }

    20% {
        transform: translate(-3px, 0px) rotate(1deg);
    }

    30% {
        transform: translate(3px, 2px) rotate(0deg);
    }

    40% {
        transform: translate(1px, -1px) rotate(1deg);
    }

    50% {
        transform: translate(-1px, 2px) rotate(-1deg);
    }

    60% {
        transform: translate(-3px, 1px) rotate(0deg);
    }

    70% {
        transform: translate(3px, 1px) rotate(-1deg);
    }

    80% {
        transform: translate(-1px, -1px) rotate(1deg);
    }

    90% {
        transform: translate(1px, 2px) rotate(0deg);
    }

    100% {
        transform: translate(1px, -2px) rotate(-1deg);
    }
}

#rpgStoryOverlay.glitch-active {
    /* animation: screenShake 0.3s infinite !important; */
    filter: hue-rotate(90deg) contrast(1.5);
}

.noise-layer.intense {
    opacity: 0.6 !important;
    background-color: #220000;
    mix-blend-mode: overlay;
}

/* Stage Layout (Absolute Fullscreen) */
.story-stage {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1000px;
    height: 100%;
    z-index: 2020;
    pointer-events: none;
    overflow: visible;
    /* Allow characters to pop out if needed? Or hidden? */
    /* Hidden is safer to crop edges, but user wants them balanced. */
    /* If 1000px, hidden might crop them if they were positioned outside. */
    overflow: hidden;
}

/* Fix Alexander's Glitch to include Flip */
.enemy-distorted {
    animation: enemyGlitch 0.2s infinite;
    filter: sepia(1) saturate(3) hue-rotate(-50deg) drop-shadow(0 0 20px rgba(255, 0, 0, 0.9)) !important;
}

@keyframes enemyGlitch {
    0% {
        transform: translate(0) skew(0deg) scaleX(-1);
        opacity: 1;
    }

    20% {
        transform: translate(-3px, 3px) skew(5deg) scaleX(-1);
        opacity: 0.9;
    }

    40% {
        transform: translate(3px, -3px) skew(-5deg) scaleX(-1);
        opacity: 1;
    }

    60% {
        transform: translate(-3px, -3px) skew(2deg) scaleX(-1);
        opacity: 0.8;
    }

    80% {
        transform: translate(3px, 3px) skew(-2deg) scaleX(-1);
        opacity: 1;
    }

    100% {
        transform: translate(0) skew(0deg) scaleX(-1);
        opacity: 1;
    }
}

/* Per (Left Slot) - Responsive */
.character-container {
    position: absolute;
    bottom: 230px;
    /* Mobile: Fixed height above dialogue */
    left: 50%;
    /* Default: Center */
    transform: translateX(-50%);
    margin-left: 0;
    z-index: 6;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    /* Smooth movement */
}

/* Move to Left State */

@keyframes popInCharacter {
    0% {
        opacity: 0;
        transform: translate(-50%, 100px) scale(0.5);
    }

    60% {
        opacity: 1;
        transform: translate(-50%, -20px) scale(1.05);
    }

    80% {
        transform: translate(-50%, 10px) scale(0.95);
    }

    100% {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
    }
}

/* Keyframes for Move-Left state (if popping in while left) */
/* Actually, popIn always uses the transform defined in keyframes.
   If .move-left is active, transform is none.
   Conflict: Keyframe overrides inline/class transform during animation.
   If Per pops in AT Center, keyframe uses -50%.
   If Per pops in AT Left (unlikely), keyframe needs to match.
   Per always pops in at start (Center). So Keyframe is correct.
   Move Left happens later via class transition. */


/* Dialogue Box (Visual Novel Style) */
#storyDialogueBox {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 900px;
    height: 180px;
    overflow: visible;
    /* ALLOW Name Tag to show */
    background: rgba(0, 0, 0, 0.9);
    border: 4px solid #3498db;
    border-radius: 15px;
    padding: 25px 30px;
    color: #fff;
    z-index: 2030;
    box-shadow: 0 0 20px rgba(52, 152, 219, 0.6);
}

#storySpeakerName {
    position: absolute;
    top: -18px;
    left: 30px;
    background: #2980b9;
    color: #fff;
    padding: 5px 20px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1.2rem;
    border: 2px solid #5dade2;
    z-index: 2032;
    white-space: nowrap;
    /* Prevent wrap */
}

#storyText {
    font-family: 'Zen Maru Gothic', 'Hiragino Sans', sans-serif;
    font-size: 1.4rem;
    line-height: 1.6;
    font-weight: bold;
    color: #ffffff;
    text-shadow:
        2px 2px 0 #000, -1px -1px 0 #000,
        1px -1px 0 #000, -1px 1px 0 #000,
        1px 1px 0 #000;
    letter-spacing: 0.05em;
    height: 100%;
    overflow-y: auto;
    /* Scroll if text exceeds box */
}

.dialogue-arrow {
    position: absolute;
    bottom: 15px;
    right: 30px;
    font-size: 1.5rem;
    color: #3498db;
    animation: bounceArrow 1s infinite ease-in-out;
}

@keyframes bounceArrow {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(5px);
    }
}

/* Aura */
.distortion-aura {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(160, 20, 20, 0.7) 0%, rgba(80, 0, 80, 0.3) 60%, transparent 80%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(20px);
    animation: sinisterPulse 2s infinite alternate;
}

@keyframes sinisterPulse {
    0% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(0.9);
    }

    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* Character Image Sizing (Common) */
.character-img {
    max-height: 40vh !important;
    max-width: 45vw;
    /* Prevent overlap on mobile (max 45% width) */
    width: auto;
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.5));
}

@media (min-width: 768px) {
    .character-img {
        max-height: 50vh !important;
        max-width: 350px;
        /* Tablet: Cap size to prevent overlap */
    }
}

@media (min-width: 1200px) {
    .character-img {
        max-height: 60vh !important;
        max-width: 400px;
        /* PC: Reduced from 500px to overlap less */
    }
}

/* Alexander (Enemy Silhouette) Positioning */
#storyEnemySilhouette {
    position: absolute;
    bottom: 230px;
    right: 2%;
    /* Default mobile: Anchor to right */
    transform: none;
    /* Remove any centering transforms */
    z-index: 5;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

#storyEnemySilhouette.show {
    opacity: 1;
}

/* Alexander Image Sizing */
.enemy-silhouette img {
    max-height: 40vh !important;
    max-width: 45vw;
    /* Prevent overlap on mobile */
    filter: drop-shadow(0 0 20px rgba(255, 50, 50, 0.6)) !important;
    transform: scaleX(-1);
    /* Flip horizontally */
}

@media (min-width: 768px) {
    #storyEnemySilhouette {
        right: 5%;
        /* Tablet: Keep somewhat to side */
    }

    .enemy-silhouette img {
        max-height: 50vh !important;
        max-width: 350px;
        /* Tablet: Cap size */
    }
}

@media (min-width: 1200px) {
    #storyEnemySilhouette {
        right: 5%;
        /* PC: Keep at 5% to avoid overlap in 1000px container */
    }

    .enemy-silhouette img {
        max-height: 60vh !important;
        max-width: 400px;
        /* PC: Reduced max-width */
    }
}

/* Move-Left State (Per) */
.character-container.move-left {
    left: 2%;
    /* Default mobile: Anchor to left */
    transform: none;
    /* Remove centering transform */
    margin-left: 0;
}

.character-container.show {
    opacity: 1;
}

@media (min-width: 768px) {
    .character-container.move-left {
        left: 5%;
        /* Tablet: Keep somewhat to side */
        transform: none;
    }
}

@media (min-width: 1200px) {
    .character-container.move-left {
        left: 5%;
        /* PC: Keep at 5% to avoid overlap */
        transform: none;
    }
}

/* Font Size Controls */
.font-size-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

@media (max-width: 768px) {
    .font-size-controls {
        display: none !important;
    }
}

/* Fix text overlap when font is large */
.question-content {
    margin-bottom: 30px;
    /* Increased margin */
}

.answer-content {
    margin-top: 20px;
    clear: both;
    /* Ensure it clears floating elements if any */
}

/* =======================================
   RPG BOSS EMERGENCE ANIMATIONS
   ======================================= */
.anim-active .rpg-title {
    animation: missionStamp 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.5s both;
}

.anim-active .boss-img {
    animation: bossZoomIn 1s cubic-bezier(0.19, 1, 0.22, 1) 0.6s both;
    transform-origin: center;
}

.anim-active .boss-name-large {
    animation: bossNameSlide 0.7s ease-out 1.0s both;
}

.anim-active .boss-preview-vertical .difficulty-stars-container {
    animation: cascadeFadeIn 0.5s ease-out 1.2s both;
}

.anim-active #rpgIntroDialog {
    animation: cascadeFadeIn 0.5s ease-out 1.4s both;
}

.anim-active .rule-item {
    animation: cascadeFadeIn 0.5s ease-out both;
}

.anim-active .rule-item:nth-child(1) {
    animation-delay: 1.6s;
}

.anim-active .rule-item:nth-child(2) {
    animation-delay: 1.8s;
}

.anim-active .rule-item:nth-child(3) {
    animation-delay: 2.0s;
}

@keyframes bossZoomIn {
    0% {
        transform: scale(0);
        filter: brightness(10) contrast(2) blur(20px);
        opacity: 0;
    }

    40% {
        transform: scale(1.2);
        filter: brightness(2) contrast(1.5) blur(5px);
        opacity: 1;
    }

    100% {
        transform: scale(1);
        filter: brightness(1) contrast(1) blur(0);
        opacity: 1;
    }
}

@keyframes bossNameSlide {
    0% {
        transform: translateX(100px);
        filter: blur(15px);
        opacity: 0;
    }

    100% {
        transform: translateX(0);
        filter: blur(0);
        opacity: 1;
    }
}

@keyframes missionStamp {
    0% {
        transform: scale(5);
        opacity: 0;
        filter: blur(20px);
        color: #e74c3c;
    }

    80% {
        transform: scale(0.9);
        opacity: 1;
        filter: blur(0);
        color: #fff;
    }

    100% {
        transform: scale(1);
        opacity: 1;
        filter: blur(0);
        color: #fff;
    }
}

@keyframes cascadeFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
        filter: blur(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* Ensure initial states for animations */
.rpg-modal-container .rpg-title,
.rpg-modal-container .boss-img,
.rpg-modal-container .boss-name-large,
.rpg-modal-container .difficulty-stars-container,
.rpg-modal-container #rpgIntroDialog,
.rpg-modal-container .rule-item {
    opacity: 0 !important;
}

.anim-active .rpg-title,
.anim-active .boss-img,
.anim-active .boss-name-large,
.anim-active .difficulty-stars-container,
.anim-active #rpgIntroDialog,
.anim-active .rule-item {
    opacity: 1 !important;
    /* Force override base opacity when animating/active */
}

/* Reset opacity when NOT active to allow static view if JS fails, 
   but since we use 'hidden' class anyway, it's mostly for the animation trigger */
.rpg-screen.anim-active .rpg-title,
.rpg-screen.anim-active .boss-img,
.rpg-screen.anim-active .boss-name-large,
.rpg-screen.anim-active .difficulty-stars-container,
.rpg-screen.anim-active #rpgIntroDialog,
.rpg-screen.anim-active .rule-item {
    opacity: 1;
}

/* =======================================
   RPG MODAL ENTRANCE & BACKGROUND
   ======================================= */
.rpg-overlay.anim-active {
    animation: overlayFadeIn 0.5s ease-out forwards;
}

.rpg-overlay.anim-active .rpg-modal-container {
    animation: modalEntrance 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes overlayFadeIn {
    from {
        background: rgba(0, 0, 0, 0);
        backdrop-filter: blur(0px);
    }

    to {
        background: rgba(0, 0, 0, 0.9);
        backdrop-filter: blur(5px);
    }
}

@keyframes modalEntrance {
    0% {
        transform: scale(0.6) rotate(-5deg);
        opacity: 0;
    }

    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}
/* =======================================
   RPG MISSION CLEAR CELEBRATION
   ======================================= */
.anim-victory #rpgResultTitle {
    animation: victoryStamp 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.5) both;
    text-shadow: 0 0 20px rgba(241, 196, 15, 0.8), 0 0 40px rgba(241, 196, 15, 0.4);
}

.anim-victory .reward-box {
    animation: victoryGlow 2s infinite alternate ease-in-out 0.8s both, cascadeFadeIn 0.8s ease-out 0.8s both;
    border-color: #f1c40f !important;
    box-shadow: 0 0 30px rgba(241, 196, 15, 0.2);
}

.anim-victory #rpgWinDialogue {
    animation: cascadeFadeIn 0.8s ease-out 0.5s both;
}

.anim-victory .reward-row {
    animation: rewardPopIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

.anim-victory .reward-row:nth-child(2) { animation-delay: 1.2s; }
.anim-victory .reward-row:nth-child(3) { animation-delay: 1.4s; }

@keyframes victoryStamp {
    0% { transform: scale(3) translateY(-50px); opacity: 0; filter: brightness(5) blur(10px); }
    70% { transform: scale(0.9) translateY(5px); opacity: 1; filter: brightness(1.5) blur(0); }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}

@keyframes victoryGlow {
    0% { box-shadow: 0 0 10px rgba(241, 196, 15, 0.2); border-color: #f1c40f; }
    100% { box-shadow: 0 0 40px rgba(241, 196, 15, 0.6); border-color: #fff; }
}

@keyframes rewardPopIn {
    0% { transform: scale(0.5) translateY(20px); opacity: 0; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}

/* Base state for victory elements */
#rpgWinContent .reward-row,
#rpgWinDialogue,
#rpgResultTitle {
    opacity: 0;
}