* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.game-container {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
}

h1 {
    color: #e74c3c;
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.game-subtitle {
    color: #74b9ff;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
    font-style: italic;
}

/* 広告エリア */
.ad-container {
    margin: 20px 0;
    padding: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    text-align: center;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-top {
    margin-bottom: 25px;
}

.ad-bottom {
    margin-top: 25px;
}

/* 広告が読み込まれない場合の代替表示 */
.ad-container:empty::before {
    content: "広告";
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    font-style: italic;
}

.user-section {
    margin-bottom: 20px;
    padding: 15px;
    background: linear-gradient(45deg, #a29bfe, #6c5ce7);
    border-radius: 15px;
    color: white;
}

.user-input {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.user-input label {
    font-weight: bold;
    min-width: 100px;
}

.user-input input {
    flex: 1;
    min-width: 150px;
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
}

.user-input button {
    background: linear-gradient(45deg, #00b894, #00cec9);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.user-input button:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 184, 148, 0.3);
}

.current-player {
    text-align: center;
    font-weight: bold;
    font-size: 1.1rem;
}

.audio-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    flex-wrap: wrap;
}

.audio-controls button {
    background: linear-gradient(45deg, #fd79a8, #e84393);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    min-width: 80px;
}

.audio-controls button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(253, 121, 168, 0.4);
}

.audio-controls button.active {
    background: linear-gradient(45deg, #00b894, #00cec9);
    box-shadow: 0 0 10px rgba(0, 184, 148, 0.5);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.volume-control input[type="range"] {
    width: 80px;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.volume-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: #fd79a8;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.volume-control input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: #fd79a8;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.game-info {
    margin-bottom: 25px;
    padding: 15px;
    background: linear-gradient(45deg, #74b9ff, #0984e3);
    border-radius: 15px;
    color: white;
}

.game-info p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.difficulty-selection {
    margin-bottom: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.difficulty-selection label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

.difficulty-selection select {
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    margin-right: 10px;
    background: white;
    color: #333;
}

.difficulty-selection button {
    padding: 8px 15px;
    background: linear-gradient(45deg, #00b894, #00a085);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.difficulty-selection button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 184, 148, 0.4);
}

.score-info {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
}

.juice-selection {
    margin-bottom: 25px;
}

.juice-selection h3 {
    color: #2d3436;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.instruction {
    color: #636e72;
    font-size: 0.9rem;
    margin-top: 10px;
    font-style: italic;
}

.juice-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.juice-btn {
    font-size: 3rem;
    padding: 15px;
    border: 3px solid #ddd;
    border-radius: 15px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.juice-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    border-color: #74b9ff;
}

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

.current-guess {
    margin-bottom: 25px;
    padding: 20px;
    background: linear-gradient(45deg, #fd79a8, #e84393);
    border-radius: 15px;
    color: white;
}

.current-guess h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.guess-slots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.slot {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    border: 3px solid #fff;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #333;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

/* より多くのスロットに対応するレスポンシブ調整 */
@media (max-width: 800px) {
    .slot {
        width: 55px;
        height: 55px;
        font-size: 2.2rem;
    }
}

@media (max-width: 600px) {
    .slot {
        width: 50px;
        height: 50px;
        font-size: 2rem;
    }
}

.slot.filled {
    background: white;
    transform: scale(1.05);
}

.slot.selected {
    background: linear-gradient(45deg, #ffd32a, #ff9500);
    border: 3px solid #ff6b35;
    box-shadow: 0 0 15px rgba(255, 107, 53, 0.5);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1.05); }
    50% { transform: scale(1.1); }
}

.current-result {
    margin-top: 15px;
    padding: 15px;
    background: linear-gradient(45deg, #00b894, #00cec9);
    border-radius: 12px;
    color: white;
    font-weight: bold;
    animation: slideIn 0.5s ease-out;
}

.result-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.1rem;
}

.hit-count {
    font-size: 1.3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.guess-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.guess-controls button {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

#submitGuess {
    background: linear-gradient(45deg, #00b894, #00a085);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.4);
}

#submitGuess:enabled:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 184, 148, 0.6);
}

#submitGuess:disabled {
    background: #bbb;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

#clearGuess {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    box-shadow: 0 4px 15px rgba(238, 90, 36, 0.4);
}

#clearGuess:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(238, 90, 36, 0.6);
}

.history {
    margin-bottom: 25px;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.history h3 {
    color: #2d3436;
    margin-bottom: 0;
    font-size: 1.3rem;
}

#toggleHistory {
    background: linear-gradient(45deg, #74b9ff, #0984e3);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

#toggleHistory:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(116, 185, 255, 0.3);
}

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    margin-bottom: 10px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 5px solid #74b9ff;
}

.guess-display {
    display: flex;
    gap: 10px;
    font-size: 2rem;
}

.result-display {
    display: flex;
    gap: 15px;
    align-items: center;
}

.hit-blow {
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.hits {
    background: #00b894;
    color: white;
    font-size: 1.1rem;
    padding: 10px 20px;
}

.controls {
    margin-bottom: 20px;
}

.controls button {
    background: linear-gradient(45deg, #a29bfe, #6c5ce7);
    color: white;
    border: none;
    padding: 12px 25px;
    margin: 0 10px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
}

.controls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.6);
}

.game-result {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.98);
    padding: 40px;
    border-radius: 20px;
    border: 3px solid #00b894;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.game-result h2 {
    color: #00b894;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.game-result p {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #333;
}

.result-answer {
    font-size: 3rem;
    margin: 20px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 15px;
}

#playAgainBtn {
    background: linear-gradient(45deg, #00b894, #00a085);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.4);
}

#playAgainBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 184, 148, 0.6);
}

.rules {
    margin-top: 20px;
}

.rules details {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
}

.rules summary {
    cursor: pointer;
    font-weight: bold;
    color: #2d3436;
    margin-bottom: 10px;
}

.rules-content {
    text-align: left;
    margin-top: 15px;
}

.rules-content p {
    margin-bottom: 10px;
    padding: 8px;
    background: white;
    border-radius: 5px;
    border-left: 4px solid #74b9ff;
}

/* レスポンシブデザイン */
@media (max-width: 600px) {
    .game-container {
        padding: 20px;
        margin: 10px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .juice-btn {
        font-size: 2.5rem;
        padding: 12px;
    }
    
    .slot {
        width: 60px;
        height: 60px;
        font-size: 2.5rem;
    }
    
    .score-info {
        flex-direction: column;
        gap: 5px;
    }
    
    .guess-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .controls button {
        margin: 5px;
        padding: 10px 20px;
    }
    
    .audio-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .volume-control {
        width: 100%;
        justify-content: center;
    }
    
    .volume-control input[type="range"] {
        width: 120px;
    }
}

/* スマホ専用の最適化 */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .game-container {
        padding: 15px;
        margin: 5px;
        border-radius: 15px;
    }
    
    h1 {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    
    .difficulty-selection {
        padding: 10px;
    }
    
    .difficulty-selection select {
        width: 100%;
        margin-bottom: 10px;
        margin-right: 0;
    }
    
    .difficulty-selection button {
        width: 100%;
    }
    
    .juice-buttons {
        gap: 8px;
    }
    
    .juice-btn {
        font-size: 2.2rem;
        padding: 12px;
        min-width: 55px;
        min-height: 55px;
    }
    
    .guess-slots {
        gap: 8px;
        max-width: 100%;
        overflow-x: auto;
        padding: 5px;
    }
    
    .slot {
        width: 48px;
        height: 48px;
        font-size: 1.8rem;
        flex-shrink: 0;
    }
    
    .guess-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .guess-controls button {
        width: 100%;
        padding: 15px;
        font-size: 1.1rem;
    }
    
    .score-info {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .history-item {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .guess-display {
        justify-content: center;
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .guess-display span {
        font-size: 1.5rem;
    }
    
    .controls button {
        width: 100%;
        margin: 5px 0;
    }
    
    .game-result {
        width: 95%;
        max-width: none;
        margin: 10px;
        padding: 20px;
    }
    
    .result-answer {
        font-size: 2rem;
        padding: 15px;
    }
    
    .ranking-header {
        flex-direction: column;
        gap: 15px;
    }
    
    .ranking-controls {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .ranking-mode {
        width: 100%;
        max-width: 200px;
    }
    
    .ranking-mode-btn {
        flex: 1;
        padding: 8px 12px;
    }
    
    /* タッチ操作の改善 */
    .juice-btn, .slot, button {
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
    
    /* スクロール改善 */
    .guess-slots::-webkit-scrollbar {
        height: 3px;
    }
    
    .guess-slots::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.3);
        border-radius: 3px;
    }
    
    .guess-slots::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.7);
        border-radius: 3px;
    }
}

/* ランキングセクション */
.ranking-section {
    margin-bottom: 25px;
    padding: 20px;
    background: linear-gradient(45deg, #fd79a8, #e84393);
    border-radius: 15px;
    color: white;
}

.ranking-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.ranking-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.ranking-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.ranking-mode {
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.ranking-mode-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    border-radius: 0;
}

.ranking-mode-btn:first-child {
    border-radius: 8px 0 0 8px;
}

.ranking-mode-btn:last-child {
    border-radius: 0 8px 8px 0;
}

.ranking-mode-btn.active {
    background: linear-gradient(45deg, #00b894, #00cec9);
    box-shadow: 0 0 10px rgba(0, 184, 148, 0.5);
}

.ranking-mode-btn:hover:not(.active) {
    background: rgba(255, 255, 255, 0.3);
}

.ranking-controls select {
    padding: 5px 10px;
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
}

.ranking-controls button {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 5px 12px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.ranking-controls button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.ranking-list {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    max-height: 300px;
    overflow-y: auto;
}

.ranking-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.ranking-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateX(5px);
}

.ranking-position {
    font-weight: bold;
    font-size: 1.2rem;
    min-width: 40px;
}

.ranking-position.gold { color: #ffd700; }
.ranking-position.silver { color: #c0c0c0; }
.ranking-position.bronze { color: #cd7f32; }

.ranking-player {
    flex: 1;
    font-weight: bold;
    margin-left: 10px;
}

.ranking-time {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 1.1rem;
}

.ranking-attempts {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-left: 10px;
}

.no-records {
    text-align: center;
    opacity: 0.7;
    font-style: italic;
    padding: 20px;
}

.loading {
    text-align: center;
    opacity: 0.8;
    padding: 20px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}