/* リセットとベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 800px;
    width: 100%;
    overflow: hidden;
}

/* ヘッダー */
header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    text-align: center;
    padding: 30px 20px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.95;
}

/* メインコンテンツ */
main {
    padding: 40px 30px;
    min-height: 500px;
}

/* 画面表示制御 */
.screen {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* スタート画面 */
.welcome-box {
    text-align: center;
    padding: 40px;
}

.welcome-box h2 {
    color: #667eea;
    font-size: 2.5em;
    margin-bottom: 20px;
}

.welcome-box p {
    font-size: 1.3em;
    color: #666;
    margin-bottom: 40px;
}

/* ボタンスタイル */
.button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 40px;
    font-size: 1.2em;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(-1px);
}

.btn:focus {
    outline: 3px solid #ffd700;
    outline-offset: 3px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.btn-large {
    padding: 20px 60px;
    font-size: 1.5em;
}

/* カテゴリ選択画面 */
.category-header {
    text-align: center;
    margin-bottom: 30px;
}

.category-header h2 {
    color: #667eea;
    font-size: 2.2em;
    margin-bottom: 10px;
}

.category-header p {
    font-size: 1.2em;
    color: #666;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.category-card {
    background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 3px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    border-color: #667eea;
}

.category-card:active {
    transform: translateY(-2px) scale(1.01);
}

.category-card:focus {
    outline: 3px solid #ffd700;
    outline-offset: 3px;
}

/* モード選択画面 */
.mode-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.mode-card {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 3px solid transparent;
}

.mode-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    border-color: #667eea;
}

.mode-card:active {
    transform: translateY(-2px) scale(1.01);
}

.mode-card:focus {
    outline: 3px solid #ffd700;
    outline-offset: 3px;
}

.mode-icon {
    font-size: 3.5em;
    margin-bottom: 15px;
    display: block;
}

.mode-name {
    font-size: 1.4em;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.mode-description {
    font-size: 0.95em;
    color: #666;
    line-height: 1.4;
}

.category-icon {
    font-size: 3.5em;
    margin-bottom: 15px;
    display: block;
}

.category-name {
    font-size: 1.4em;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.category-description {
    font-size: 0.95em;
    color: #666;
    line-height: 1.4;
}

/* ゲーム画面 */
.game-header {
    margin-bottom: 25px;
}

.game-info {
    display: flex;
    justify-content: space-around;
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 15px;
}

.info-item {
    text-align: center;
    flex: 1;
}

.info-item .label {
    display: block;
    font-size: 0.95em;
    color: #666;
    margin-bottom: 8px;
    font-weight: 500;
}

.info-item .value {
    display: block;
    font-size: 2.2em;
    font-weight: bold;
    color: #f5576c;
}

.info-item .value.combo {
    color: #ff6b6b;
    animation: pulse 0.5s ease-in-out;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* 進捗バー */
.progress-container {
    position: relative;
    background: #e0e0e0;
    border-radius: 20px;
    height: 30px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.9em;
    font-weight: bold;
    color: #333;
    text-shadow: 0 0 3px rgba(255, 255, 255, 0.8);
}

/* ゲームフッター */
.game-footer {
    text-align: center;
    margin-top: 20px;
}

.btn-small {
    padding: 10px 30px;
    font-size: 1em;
}

/* 問題表示 */
.question-box {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    padding: 40px;
    border-radius: 20px;
    margin-bottom: 30px;
    text-align: center;
}

.word-display .japanese {
    font-size: 3em;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
}

.word-display .reading {
    font-size: 1.3em;
    color: #666;
    margin-bottom: 10px;
}

.word-display .hint {
    font-size: 1.1em;
    color: #888;
    font-style: italic;
    margin-top: 15px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 10px;
    display: inline-block;
}

.word-display .hint:empty {
    display: none;
}

/* 旧スタイルとの互換性のため残しておく */
.word-display .romaji {
    font-size: 1.5em;
    color: #666;
    font-style: italic;
}

/* 入力エリア */
.input-area {
    margin-bottom: 20px;
}

#typing-input {
    width: 100%;
    padding: 20px;
    font-size: 1.5em;
    border: 3px solid #667eea;
    border-radius: 15px;
    text-align: center;
    outline: none;
    transition: all 0.3s ease;
}

#typing-input:focus {
    border-color: #f5576c;
    box-shadow: 0 0 20px rgba(245, 87, 108, 0.3);
}

/* フィードバック */
.feedback {
    text-align: center;
    font-size: 1.3em;
    font-weight: bold;
    min-height: 40px;
    padding: 10px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.feedback.correct {
    color: #4caf50;
    background: rgba(76, 175, 80, 0.1);
    animation: fadeInScale 0.5s ease;
}

.feedback.wrong {
    color: #f44336;
    background: rgba(244, 67, 54, 0.1);
    animation: shake 0.5s ease;
}

/* 正解時のアニメーション */
@keyframes fadeInScale {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* 不正解時のシェイクアニメーション */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-10px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(10px);
    }
}

/* スコア加算アニメーション */
@keyframes scoreUp {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
    50% {
        transform: translateY(-20px) scale(1.3);
    }
    100% {
        transform: translateY(-40px) scale(1);
        opacity: 0;
    }
}

/* コンボエフェクト */
.combo-effect {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4em;
    font-weight: bold;
    color: #ff6b6b;
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.8);
    animation: comboPopup 1s ease forwards;
    pointer-events: none;
    z-index: 1000;
}

@keyframes comboPopup {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.2);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.5);
    }
}

/* 画面フラッシュエフェクト */
.screen-flash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(76, 175, 80, 0.3);
    pointer-events: none;
    z-index: 999;
    animation: flash 0.3s ease;
}

.screen-flash.wrong {
    background: rgba(244, 67, 54, 0.3);
}

@keyframes flash {
    0%, 100% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
}

/* 入力フィールドのエラーエフェクト */
#typing-input.error {
    border-color: #f44336;
    animation: inputShake 0.3s ease;
}

@keyframes inputShake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* タイマー警告アニメーション */
.timer-warning {
    animation: timerPulse 1s ease-in-out infinite;
}

@keyframes timerPulse {
    0%, 100% {
        transform: scale(1);
        color: #f44336;
    }
    50% {
        transform: scale(1.1);
        color: #ff6b6b;
    }
}

/* 結果画面 */
.result-box {
    text-align: center;
    padding: 40px;
}

.result-box h2 {
    color: #667eea;
    font-size: 2.5em;
    margin-bottom: 30px;
}

/* 称号表示 */
.rank-display {
    margin: 30px 0;
    padding: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.rank-title {
    font-size: 3.5em;
    font-weight: bold;
    color: white;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    margin-bottom: 15px;
    animation: rankAppear 1s ease-out;
}

@keyframes rankAppear {
    0% {
        opacity: 0;
        transform: scale(0.5) rotate(-10deg);
    }
    60% {
        transform: scale(1.1) rotate(5deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

.rank-badges {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 15px;
    border-radius: 20px;
    color: white;
    font-size: 0.9em;
    font-weight: bold;
    border: 2px solid rgba(255, 255, 255, 0.3);
    animation: badgeAppear 0.5s ease-out backwards;
}

.badge:nth-child(1) { animation-delay: 0.3s; }
.badge:nth-child(2) { animation-delay: 0.5s; }
.badge:nth-child(3) { animation-delay: 0.7s; }

@keyframes badgeAppear {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 総合スコア */
.total-score {
    margin: 30px 0;
    padding: 20px;
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    border-radius: 15px;
}

.score-label {
    display: block;
    font-size: 1.2em;
    color: #666;
    margin-bottom: 10px;
}

.score-value {
    font-size: 4em;
    font-weight: bold;
    color: #f5576c;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

/* 詳細統計 */
.result-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.stat-item {
    background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.stat-label {
    display: block;
    font-size: 0.9em;
    color: #666;
    margin-bottom: 8px;
}

.stat-value {
    display: block;
    font-size: 2em;
    font-weight: bold;
    color: #667eea;
}

/* スコア記録画面 */
.scores-box {
    padding: 20px;
}

.scores-box h2 {
    color: #667eea;
    font-size: 2em;
    margin-bottom: 30px;
    text-align: center;
}

.scores-box h3 {
    color: #667eea;
    font-size: 1.5em;
    margin: 30px 0 20px 0;
    text-align: center;
}

/* 総合統計 */
.overall-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.stat-card-label {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 10px;
}

.stat-card-value {
    font-size: 2.2em;
    font-weight: bold;
    color: #f5576c;
}

/* 称号カード */
.stat-card.rank-card {
    position: relative;
    padding-top: 60px;
    overflow: hidden;
}

.stat-card-rank {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.2em;
    font-weight: bold;
    padding: 8px 20px;
    border-radius: 20px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 称号レベル別デザイン */
/* レベル1: 初級（見習い、初心者、一般人） */
.rank-card.rank-level-1 {
    background: linear-gradient(135deg, #e0e0e0 0%, #bdbdbd 100%);
}
.rank-card.rank-level-1 .stat-card-rank {
    background: linear-gradient(135deg, #9e9e9e 0%, #757575 100%);
    color: white;
}

/* レベル2: 中級（秀才、天才） */
.rank-card.rank-level-2 {
    background: linear-gradient(135deg, #90caf9 0%, #64b5f6 100%);
}
.rank-card.rank-level-2 .stat-card-rank {
    background: linear-gradient(135deg, #42a5f5 0%, #1e88e5 100%);
    color: white;
}

/* レベル3: 上級（英雄、伝説） */
.rank-card.rank-level-3 {
    background: linear-gradient(135deg, #ce93d8 0%, #ba68c8 100%);
}
.rank-card.rank-level-3 .stat-card-rank {
    background: linear-gradient(135deg, #ab47bc 0%, #8e24aa 100%);
    color: white;
}

/* レベル4: 最上級（覇王、界王神、タイピング神） */
.rank-card.rank-level-4 {
    background: linear-gradient(135deg, #ffd54f 0%, #ffb74d 100%);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.4);
}
.rank-card.rank-level-4 .stat-card-rank {
    background: linear-gradient(135deg, #ffa726 0%, #ff9800 100%);
    color: white;
    animation: rankPulse 2s ease-in-out infinite;
}

/* レベル5: 神級（破壊神、超越神、究極神） */
.rank-card.rank-level-5 {
    background: linear-gradient(135deg, #ff6e7f 0%, #bfe9ff 100%);
    box-shadow: 0 8px 25px rgba(255, 110, 127, 0.5);
}
.rank-card.rank-level-5 .stat-card-rank {
    background: linear-gradient(135deg, #ff5252 0%, #f50057 100%);
    color: white;
    animation: rankPulse 2s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(255, 82, 82, 0.6);
}

/* レベル6: 超越級（全知全能、次元を超えし者、時空を統べる者） */
.rank-card.rank-level-6 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
}
.rank-card.rank-level-6 .stat-card-rank {
    background: linear-gradient(135deg, #5e72e4 0%, #6f42c1 100%);
    color: white;
    animation: rankGlow 2s ease-in-out infinite;
    box-shadow: 0 0 25px rgba(102, 126, 234, 0.8);
}

/* レベル7: 最高級（宇宙の支配者、神々の頂点、無限の境地） */
.rank-card.rank-level-7 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 12px 35px rgba(240, 147, 251, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.5);
}
.rank-card.rank-level-7 .stat-card-rank {
    background: linear-gradient(135deg, #ee5a6f 0%, #c94b4b 100%);
    color: white;
    animation: rankGlow 1.5s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(240, 147, 251, 1);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

/* レベル8: 絶対級（次元の創造主、絶対的存在） */
.rank-card.rank-level-8 {
    background: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    box-shadow: 0 15px 40px rgba(255, 215, 0, 0.8);
    border: 3px solid rgba(255, 255, 255, 0.7);
    animation: cardShine 3s ease-in-out infinite;
}
.rank-card.rank-level-8 .stat-card-rank {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
    animation: rankSupreme 2s ease-in-out infinite;
    box-shadow: 0 0 40px rgba(255, 215, 0, 1);
    text-shadow: 0 0 15px rgba(255, 255, 255, 1);
    font-size: 1.4em;
}

/* アニメーション */
@keyframes rankPulse {
    0%, 100% {
        transform: translateX(-50%) scale(1);
    }
    50% {
        transform: translateX(-50%) scale(1.05);
    }
}

@keyframes rankGlow {
    0%, 100% {
        box-shadow: 0 0 25px rgba(102, 126, 234, 0.8);
    }
    50% {
        box-shadow: 0 0 35px rgba(102, 126, 234, 1);
    }
}

@keyframes rankSupreme {
    0%, 100% {
        transform: translateX(-50%) scale(1);
        box-shadow: 0 0 40px rgba(255, 215, 0, 1);
    }
    50% {
        transform: translateX(-50%) scale(1.1);
        box-shadow: 0 0 50px rgba(255, 215, 0, 1), 0 0 70px rgba(255, 140, 0, 0.8);
    }
}

@keyframes cardShine {
    0%, 100% {
        box-shadow: 0 15px 40px rgba(255, 215, 0, 0.8);
    }
    50% {
        box-shadow: 0 15px 50px rgba(255, 215, 0, 1), 0 0 30px rgba(255, 140, 0, 0.6);
    }
}

.scores-list {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 30px;
}

.score-item {
    background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.score-item .date {
    font-size: 0.9em;
    color: #666;
}

.score-item .score-value {
    font-size: 1.5em;
    font-weight: bold;
    color: #667eea;
}

.no-scores {
    text-align: center;
    padding: 40px;
    color: #999;
    font-size: 1.2em;
}

/* フッター */
footer {
    background: #f8f9fa;
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 0.9em;
}

/* レスポンシブデザイン */

/* タブレット（768px - 1199px） */
@media (max-width: 1199px) and (min-width: 768px) {
    .container {
        max-width: 90%;
    }

    header h1 {
        font-size: 2.2em;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .word-display .japanese {
        font-size: 2.5em;
    }

    .overall-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .bar-chart {
        flex-wrap: wrap;
    }
}

/* スマートフォン（767px以下） */
@media (max-width: 767px) {
    body {
        padding: 10px;
    }

    .container {
        border-radius: 20px;
    }

    /* ヘッダー */
    header {
        padding: 20px 15px;
    }

    header h1 {
        font-size: 1.6em;
        margin-bottom: 5px;
    }

    .subtitle {
        font-size: 0.9em;
    }

    /* メイン */
    main {
        padding: 25px 15px;
        min-height: 400px;
    }

    /* スタート画面 */
    .welcome-box {
        padding: 25px 15px;
    }

    .welcome-box h2 {
        font-size: 1.8em;
        margin-bottom: 15px;
    }

    .welcome-box p {
        font-size: 1em;
        margin-bottom: 30px;
    }

    /* ボタン */
    .btn {
        padding: 12px 30px;
        font-size: 1em;
    }

    .btn-large {
        padding: 15px 40px;
        font-size: 1.2em;
    }

    .button-group {
        gap: 15px;
        flex-direction: column;
        width: 100%;
    }

    .button-group .btn {
        width: 100%;
    }

    /* カテゴリ選択 */
    .category-header h2 {
        font-size: 1.6em;
    }

    .category-header p {
        font-size: 1em;
    }

    .category-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .category-card {
        padding: 25px 15px;
    }

    .category-icon {
        font-size: 2.5em;
    }

    .category-name {
        font-size: 1.2em;
    }

    .category-description {
        font-size: 0.9em;
    }

    /* ゲーム画面 */
    .game-info {
        flex-direction: column;
        gap: 12px;
        padding: 15px;
    }

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

    .info-item .value {
        font-size: 1.8em;
    }

    .progress-container {
        height: 25px;
    }

    .progress-text {
        font-size: 0.8em;
    }

    .question-box {
        padding: 25px 15px;
        margin-bottom: 20px;
    }

    .word-display .japanese {
        font-size: 2em;
        margin-bottom: 10px;
    }

    .word-display .reading {
        font-size: 1.1em;
    }

    .word-display .romaji {
        font-size: 1.2em;
    }

    .word-display .hint {
        font-size: 0.95em;
        margin-top: 10px;
        padding: 8px;
    }

    #typing-input {
        font-size: 1.1em;
        padding: 15px;
    }

    .feedback {
        font-size: 1.1em;
        min-height: 35px;
        padding: 8px;
    }

    /* 結果画面 */
    .result-box {
        padding: 25px 15px;
    }

    .result-box h2 {
        font-size: 2em;
        margin-bottom: 20px;
    }

    .rank-display {
        margin: 20px 0;
        padding: 20px 15px;
    }

    .rank-title {
        font-size: 2.5em;
        margin-bottom: 10px;
    }

    .badge {
        font-size: 0.8em;
        padding: 6px 12px;
    }

    .total-score {
        margin: 20px 0;
        padding: 15px;
    }

    .score-label {
        font-size: 1em;
    }

    .score-value {
        font-size: 3em;
    }

    .result-stats {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 25px;
    }

    .stat-item {
        padding: 15px;
    }

    .stat-label {
        font-size: 0.85em;
    }

    .stat-value {
        font-size: 1.8em;
    }

    /* 成績画面 */
    .scores-box {
        padding: 15px;
    }

    .scores-box h2 {
        font-size: 1.6em;
        margin-bottom: 20px;
    }

    .scores-box h3 {
        font-size: 1.3em;
        margin: 20px 0 15px 0;
    }

    .overall-stats {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 25px;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-card-label {
        font-size: 0.85em;
        margin-bottom: 8px;
    }

    .stat-card-value {
        font-size: 2em;
    }

    /* グラフ */
    .chart-container {
        padding: 15px;
        margin-bottom: 20px;
    }

    #score-chart {
        width: 100%;
        height: 200px;
    }

    .bar-chart {
        height: 200px;
        gap: 5px;
        padding: 15px 5px;
        flex-wrap: wrap;
    }

    .bar-label {
        font-size: 0.75em;
        max-width: 80px;
    }

    .bar-value {
        font-size: 0.8em;
        top: -20px;
    }

    /* 履歴 */
    .scores-list {
        max-height: 300px;
    }

    .score-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 15px;
    }

    .score-item .date {
        font-size: 0.85em;
    }

    .score-item .score-value {
        font-size: 1.8em;
        align-self: flex-end;
    }

    /* フッター */
    footer {
        padding: 15px;
        font-size: 0.85em;
    }

    /* コンボエフェクト */
    .combo-effect {
        font-size: 3em;
    }
}

/* 極小画面（480px以下） */
@media (max-width: 480px) {
    header h1 {
        font-size: 1.4em;
    }

    .subtitle {
        font-size: 0.85em;
    }

    .welcome-box h2 {
        font-size: 1.5em;
    }

    .welcome-box p {
        font-size: 0.95em;
    }

    .btn {
        padding: 10px 25px;
        font-size: 0.95em;
    }

    .btn-large {
        padding: 12px 35px;
        font-size: 1.1em;
    }

    .category-icon {
        font-size: 2.2em;
    }

    .word-display .japanese {
        font-size: 1.6em;
    }

    .rank-title {
        font-size: 2em;
    }

    .score-value {
        font-size: 2.5em;
    }

    .stat-card-value {
        font-size: 1.8em;
    }
}

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

.scores-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.scores-list::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

.scores-list::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}

/* グラフコンテナ */
.chart-container {
    background: white;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

#score-chart {
    display: block;
    max-width: 100%;
    height: auto;
}

/* 棒グラフ */
.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 300px;
    gap: 10px;
    padding: 20px 10px;
}

.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.bar {
    width: 100%;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px 10px 0 0;
    transition: all 0.3s ease;
    position: relative;
    min-height: 20px;
}

.bar:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.bar-value {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-weight: bold;
    color: #667eea;
    font-size: 0.9em;
}

.bar-label {
    font-size: 0.85em;
    color: #666;
    text-align: center;
    word-break: break-word;
    max-width: 100px;
}

/* データなし表示 */
.no-data {
    text-align: center;
    padding: 40px;
    color: #999;
    font-size: 1.1em;
}

/* ローディング画面 */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-logo {
    font-size: 5em;
    margin-bottom: 20px;
    animation: logoSpin 2s ease-in-out infinite;
}

@keyframes logoSpin {
    0%, 100% {
        transform: scale(1) rotate(0deg);
    }
    50% {
        transform: scale(1.2) rotate(180deg);
    }
}

.loading-content h2 {
    font-size: 2em;
    margin-bottom: 30px;
}

.loading-bar {
    width: 300px;
    height: 10px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto 20px;
}

.loading-progress {
    height: 100%;
    background: white;
    border-radius: 10px;
    width: 0%;
    transition: width 0.3s ease;
}

.loading-text {
    font-size: 1.2em;
    opacity: 0.9;
}

/* カウントダウン画面 */
.countdown-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10001;
}

.countdown-screen.show {
    display: flex;
}

.countdown-number {
    font-size: 10em;
    font-weight: bold;
    color: white;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.8);
    animation: countdownPulse 1s ease-in-out;
}

@keyframes countdownPulse {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ヘルプモーダル */
.help-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.help-modal.show {
    display: flex;
}

.help-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.help-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2em;
    background: none;
    border: none;
    cursor: pointer;
    color: #999;
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
}

.help-close:hover {
    color: #333;
}

.help-content h2 {
    color: #667eea;
    font-size: 2em;
    margin-bottom: 30px;
    text-align: center;
}

.help-section {
    margin-bottom: 25px;
}

.help-section h3 {
    color: #667eea;
    font-size: 1.3em;
    margin-bottom: 10px;
}

.help-section p {
    line-height: 1.6;
    color: #666;
    margin-bottom: 10px;
}

.help-section ul {
    list-style: none;
    padding-left: 0;
}

.help-section li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: #666;
    line-height: 1.6;
}

.help-section li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.help-section label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95em;
    color: #666;
}

.help-section input[type="checkbox"] {
    cursor: pointer;
}

/* 実績一覧 */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.achievement-card {
    background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.achievement-card.locked {
    background: linear-gradient(135deg, #e0e0e0 0%, #c0c0c0 100%);
    opacity: 0.6;
}

.achievement-card.unlocked {
    border: 3px solid #ffd700;
}

.achievement-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.achievement-card-icon {
    font-size: 3.5em;
    margin-bottom: 15px;
    display: block;
}

.achievement-card.locked .achievement-card-icon {
    filter: grayscale(100%);
    opacity: 0.5;
}

.achievement-card-name {
    font-size: 1.3em;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.achievement-card-desc {
    font-size: 0.95em;
    color: #666;
    line-height: 1.4;
}

.achievement-card.locked .achievement-card-name,
.achievement-card.locked .achievement-card-desc {
    color: #999;
}

.achievement-progress {
    text-align: center;
    margin-bottom: 30px;
}

.achievement-progress p {
    font-size: 1.3em;
    color: #667eea;
    font-weight: bold;
    margin-bottom: 15px;
}

/* 実績解除モーダル */
.achievement-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    opacity: 0;
    transition: all 0.5s ease;
}

.achievement-modal.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.achievement-content {
    text-align: center;
    color: white;
}

.achievement-icon {
    font-size: 4em;
    margin-bottom: 15px;
}

.achievement-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 10px;
}

.achievement-name {
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 10px;
}

.achievement-desc {
    font-size: 1.1em;
    opacity: 0.9;
}

/* 中断確認モーダル */
.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10001;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.confirm-modal.show {
    opacity: 1;
}

.confirm-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}

.confirm-content {
    position: relative;
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.confirm-modal.show .confirm-content {
    transform: scale(1);
}

.confirm-icon {
    font-size: 4em;
    margin-bottom: 20px;
    animation: warningPulse 2s ease-in-out infinite;
}

@keyframes warningPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.confirm-title {
    font-size: 1.8em;
    color: #333;
    margin-bottom: 15px;
    font-weight: bold;
}

.confirm-message {
    font-size: 1.1em;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.confirm-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.confirm-btn {
    padding: 15px 35px;
    font-size: 1.1em;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    min-width: 140px;
}

.confirm-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

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

.confirm-btn-cancel {
    background: linear-gradient(135deg, #e0e0e0 0%, #bdbdbd 100%);
    color: #333;
}

.confirm-btn-cancel:hover {
    background: linear-gradient(135deg, #d0d0d0 0%, #aaa 100%);
}

.confirm-btn-confirm {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.confirm-btn-confirm:hover {
    background: linear-gradient(135deg, #e083eb 0%, #e5475c 100%);
}

/* モバイル対応 */
@media (max-width: 767px) {
    .confirm-content {
        padding: 30px 20px;
    }
    
    .confirm-title {
        font-size: 1.5em;
    }
    
    .confirm-message {
        font-size: 1em;
    }
    
    .confirm-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .confirm-btn {
        width: 100%;
        min-width: auto;
    }
}

/* Amazonアソシエイト 教材セクション */
.recommended-books {
    margin-top: 40px;
    padding: 30px;
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    border-radius: 20px;
    text-align: center;
}

.recommended-books h3 {
    font-size: 1.8em;
    color: #333;
    margin-bottom: 10px;
}

.books-description {
    font-size: 1.1em;
    color: #666;
    margin-bottom: 25px;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.book-item {
    background: white;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.book-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.book-item a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.book-item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.book-title {
    font-size: 0.95em;
    color: #333;
    font-weight: bold;
    line-height: 1.4;
    min-height: 40px;
}

/* フッター内の教材セクション */
.footer-books {
    padding: 40px 20px;
    background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    border-radius: 20px 20px 0 0;
    text-align: center;
    margin-bottom: 20px;
}

.footer-books h3 {
    font-size: 1.6em;
    color: #333;
    margin-bottom: 25px;
}

.footer-books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.footer-book-item {
    background: white;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.footer-book-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.footer-book-item a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.footer-book-item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.footer-book-title {
    font-size: 0.95em;
    color: #333;
    font-weight: bold;
    line-height: 1.4;
    min-height: 40px;
}

/* モバイル対応（教材セクション） */
@media (max-width: 767px) {
    .recommended-books {
        padding: 20px 15px;
        margin-top: 30px;
    }
    
    .recommended-books h3 {
        font-size: 1.4em;
    }
    
    .books-description {
        font-size: 1em;
    }
    
    .books-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .footer-books {
        padding: 30px 15px;
    }
    
    .footer-books h3 {
        font-size: 1.4em;
    }
    
    .footer-books-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .book-item,
    .footer-book-item {
        padding: 12px;
    }
    
    .book-title,
    .footer-book-title {
        font-size: 0.85em;
        min-height: 35px;
    }
}