/* 1. 全局樣式 */
body {
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    user-select: none;
    overflow-x: hidden;
}

#gameHeader {
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 10px 0;
}

/* 2. 設定頁樣式 */
#settingsPage {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    max-width: 95%;
    width: 350px;
    margin: 20px;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
}

#settingsPage h2 {
    text-align: center;
    color: #2d3748;
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
}

#settingsPage div {
    margin-bottom: 0.5rem;
}

#settingsPage label {
    display: inline-block;
    width: 60px;
    color: #4a5568;
    font-weight: 500;
}

#settingsPage select {
    width: 200px;
    min-width: 150px;
    max-width: calc(100% - 80px);
    padding: 5px 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background-color: white;
    color: #2d3748;
    font-size: 1rem;
    transition: all 0.2s ease;
}

#settingsPage select:focus {
    border-color: #4299e1;
    outline: none;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
}

.button-container {
    display: flex;
    width: 100%;
    gap: 10px;
    /* 讓按鈕之間有間距，可依需求調整 */
}

.button-container button {
    width: 50%;
    padding: 12px;
    font-size: 1.1rem;
    border-radius: 8px;
    border: none;
    color: white;
    transition: transform 0.2s ease;
}

#startButton:hover,
#viewButton:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(120, 120, 120, 0.2);
}

#viewButton {
    background-color: #007bff;
}

#startButton {
    background-color: #28a745;
}

/* 6. 響應式設計補充 */
@media (max-width: 767px) {
    #settingsPage {
        padding: 1rem 1.5rem;
    }

    #gameContainer {
        width: 100%;
        padding: 1rem;
    }

    #sentenceArea {
        padding: 0px
    }

    #sentence-text {
        margin-left: -10px;
    }

    .word,
    .selected-word {
        padding: 8px 16px;
        font-size: 1.2rem;
    }

    #gameStats {
        font-size: 0.9rem;
    }

}

@media (min-width: 768px) {
    #gameContainer {
        padding: 1rem;
    }

    #wordBank {
        gap: 10px;
    }

    #sentenceArea {
        padding: 20px
    }
}

@media (orientation: landscape) {
    #settingsPage {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #settingsPage>div {
        width: 100%;
        max-width: 300px;
    }
}


/* 3. 按鈕樣式 */
#closeButton {
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 1000;
    width: 30px;
    height: 30px;
    background-color: rgba(255, 255, 255, 0.7);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    color: #888;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
}

#closeButton:hover {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transform: scale(1.1);
}

#closeButton:active {
    transform: scale(0.95);
}



/* 5. 遊戲卡片樣式 */
.game-main-content {
    flex: 1;
    position: relative;
}

.progress-bar {
    width: 10px;
    height: 100%;
    background: orange;
    position: absolute;
    top: 0;
}

.progress-bar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #4CAF50;
    transition: height 0.1s linear;
}

.progress-bar.left {
    left: 0;
}

.progress-bar.right {
    right: 0;
}

/* 當時間少於 3 秒時的警告效果 */
.progress-bar.warning::after {
    background: #ff4444;
}

#gameContainer {
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 10px;
    max-width: 600px;
    width: 90%;
    min-height: 95vh;
    margin: 0px auto;
    display: flex;
    position: relative;
    padding: 0 20px;
}


#sentenceArea {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: center;
}

#targetSentence {
    font-size: 1.5em;
    padding: 15px 15px 15px 20px;
    background-color: rgba(255, 255, 255, 0.4);
    border-radius: 8px;
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
}

#emoji {
    font-size: 3em;
    line-height: 1;
    display: block;
}

#emoji:hover {
    transform: scale(1.1);
    cursor: pointer;
}

.bounce-emoji {
    animation: bounce 0.5s ease 2;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}


#wordBank {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
    justify-content: center;
}

.word {
    font-size: 1.2em;
    background: linear-gradient(145deg, #f3f4f6, #ffffff);
    padding: 10px 15px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

.word:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.word.selected {
    opacity: 0.3;
}


#answerArea {
    min-height: 40px;
    border: 2px dashed #90cdf4;
    border-radius: 8px;
    padding: 10px;
    margin: 20px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    justify-content: center;
    background-color: rgba(235, 248, 255, 0.5);
}

.selected-word {
    font-size: 1.2em;
    background: linear-gradient(145deg, #5b93d9, #3b82f6);
    color: white;
    padding: 5px 10px;
    border-radius: 8px;
    margin: 0px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#checkButton {
    background: linear-gradient(145deg, #5b93d9, #3b82f6);
    color: white;
    padding: 12px 24px;
    border-radius: 10px;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    width: 50%;
    margin: 10px auto;
    transition: all 0.2s ease;
    display: block;
}

#checkButton:disabled {
    background: linear-gradient(45deg, #d1d5db, #a1a1aa);
    cursor: not-allowed;
}




/* 8. 遊戲統計資訊樣式 */
#gameStats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 0 15px;
}

#timeDisplay,
#scoreDisplay {
    color: #888;
    font-size: 0.9 em;
    margin-right: auto;
}

#heartsDisplay {
    margin-left: auto;
    margin-right: 15px;
}

#timeDisplay {
    margin-right: 15px;
}

#gameStats span {
    white-space: nowrap;
}



/* 4. 模態框樣式 */
.modal {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: #fefefe;
    padding: 20px;
    border: 1px solid #888;
    width: 90%;
    max-width: 280px;
    border-radius: 10px;
    font-size: 1.2em;
    text-align: center;
    position: relative;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
}

.modal-buttons button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1em;
}

#returnButton {
    background-color: #f44336;
    color: white;
}

#continueButton {
    background-color: #4CAF50;
    color: white;
}

.modal-buttons button:focus {
    outline: 3px solid #007bff;
}

.end-emoji {
    font-size: 3em;
    display: block;
    animation: popIn 0.5s ease-out;
}




/* 9. 動畫效果 */
.time-warning {
    color: red;
    animation: blink 1s infinite;
}

@keyframes blink {
    50% {
        opacity: 0.3;
    }
}

@keyframes matchedAnimation {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

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

@keyframes jumpAnimation {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

@keyframes shakeAnimation {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-3px);
    }

    75% {
        transform: translateX(3px);
    }
}

.jump {
    animation: jumpAnimation 0.3s ease;
}

.shake {
    animation: shakeAnimation 0.3s ease;
}

@keyframes popIn {
    0% {
        transform: scale(0);
    }

    70% {
        transform: scale(1.2);
    }

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

.choice-button {
    font-size: 1.2rem;
    padding: 10px 20px;
    margin: 5px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background-color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.choice-button.selected {
    background-color: #3b82f6 !important;
    /* 使用 Tailwind 的 blue-500 */
    color: white !important;
    animation: highlight 0.5s ease-out;
}

.choice-button.correct {
    background-color: #4CAF50 !important;
    /* 正確答案顯示綠色 */
    color: white !important;
    animation: highlight 0.5s ease-out;
}

.choice-button.wrong {
    background-color: #ff4444 !important;
    /* 錯誤答案顯示紅色 */
    color: white !important;
    animation: shake 0.5s ease-in-out;
}

@keyframes highlight {
    from {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    to {
        transform: scale(1);
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

@keyframes slideUp {
    0% {
        transform: translateY(100%);
        opacity: 0;
    }

    60% {
        transform: translateY(-20%);
        opacity: 1;
    }

    80% {
        transform: translateY(10%);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes rotate {
    0% {
        transform: rotate(0deg) scale(0.3);
        opacity: 0;
    }

    20% {
        opacity: 1;
    }

    100% {
        transform: rotate(360deg) scale(1);
        opacity: 1;
    }
}

@keyframes bounce2 {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-30px);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }

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

@keyframes flip {
    0% {
        transform: perspective(400px) rotateY(0);
    }

    100% {
        transform: perspective(400px) rotateY(360deg);
    }
}

@keyframes heartBeat {
    0% {
        transform: scale(1);
    }

    14% {
        transform: scale(1.3);
    }

    28% {
        transform: scale(1);
    }

    42% {
        transform: scale(1.3);
    }

    70% {
        transform: scale(1);
    }
}

@keyframes swing {
    20% {
        transform: rotate(15deg);
    }

    40% {
        transform: rotate(-10deg);
    }

    60% {
        transform: rotate(5deg);
    }

    80% {
        transform: rotate(-5deg);
    }

    100% {
        transform: rotate(0deg);
    }
}

@keyframes rubberBand {
    0% {
        transform: scale(1);
    }

    30% {
        transform: scaleX(1.25) scaleY(0.75);
    }

    40% {
        transform: scaleX(0.75) scaleY(1.25);
    }

    50% {
        transform: scaleX(1.15) scaleY(0.85);
    }

    65% {
        transform: scaleX(0.95) scaleY(1.05);
    }

    75% {
        transform: scaleX(1.05) scaleY(0.95);
    }

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

@keyframes sparkle {

    0%,
    100% {
        transform: scale(1);
        filter: brightness(100%);
    }

    50% {
        transform: scale(1.1);
        filter: brightness(150%);
    }
}

.emoji-animate {
    display: inline-block;
    animation-duration: 1s;
    animation-fill-mode: both;
}

.slideUp {
    animation-name: slideUp;
}

.rotate {
    animation-name: rotate;
}

.bounce2 {
    animation-name: bounce2;
    animation-iteration-count: 2;
}

.fadeInScale {
    animation-name: fadeInScale;
}

.flip {
    animation-name: flip;
}

.heartBeat {
    animation-name: heartBeat;
}

.swing {
    animation-name: swing;
}

.rubberBand {
    animation-name: rubberBand;
}

.sparkle {
    animation-name: sparkle;
    animation-iteration-count: 2;
}

/* 添加發光效果 */
.glow {
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.7));
}















.view-container {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.group-container {
    margin-bottom: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
}


.group-container h3 {
    margin-bottom: 15px;
    color: #333;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    scroll-margin-top: 25px;
}

.items-container {
    display: grid;
    gap: 15px;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.item {
    display: flex;
    flex-wrap: wrap;
    padding: 12px 15px;
    border: 1px solid #eee;
    border-radius: 6px;
    background: #f9f9f9;
}

.item-number {
    width: 50px;
    color: #888;
}

.item-question,
.item-answer {
    flex: 1;
    min-width: 250px;
    padding: 5px;
    font-size: 1.3rem;
}

@media (max-width: 768px) {
    .item {
        flex-direction: column;
    }

    .item-number {
        width: 100%;
        margin-bottom: 5px;
    }

    .item-question,
    .item-answer {
        width: 100%;
        margin: 5px 0;
    }
}

.back-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.back-button:hover {
    background: #45a049;
}



.clickable {
    cursor: pointer;
    transition: background-color 0.2s;
}

.clickable:hover {
    color: blue;
}


.item-question,
.item-answer {
    padding: 8px;
    border-radius: 4px;
}




.nav-buttons-container {
    position: fixed;
    bottom: 10px;
    left: 20px;
    display: flex;
    gap: 0.5rem;
    z-index: 1000;
    background-color: rgba(230, 230, 230, 0.7);
    padding: 0.3rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.nav-button {
    background-color: white;
    color: #666;
    border: 1px solid #e2e8f0;
    padding: 8px 10px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.2rem;
    min-width: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-button:hover {
    background-color: #f7fafc;
    color: #4299e1;
    transform: translateY(-1px);
    border-color: #4299e1;
}

.nav-button.active {
    background-color: rgba(0, 0, 0, 0.8);
}


.mode-switch-container,
.back-button {
    display: none;
}

.mode-switch {
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin-right: 10px;
}

.mode-switch:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

.single-view-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 0;
    margin: 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.single-card {
    width: 90%;
    height: 80vh;
    max-width: 1200px;
    margin: auto;
    display: flex;
    flex-direction: column;
    background: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    padding: 20px;
}

.single-card .item {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    position: relative;
}

.single-card .item-question,
.single-card .item-answer {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin: 10px 0;
    padding: 1rem;
    text-align: center;
    min-width: unset;
    width: auto;
    background: none;
}

.single-card .item-number {
    position: absolute;
    bottom: -40px;
    right: 20px;
    font-size: 1.2rem;
    width: auto;
    color: #aaa;
}

.content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

@media (max-width: 768px) {
    .single-card {
        width: 95%;
        height: 80vh;
        padding: 20px;
    }

    .nav-buttons-container {
        bottom: 10px;
        left: 50%;
        transform: translateX(-50%);
    }

    .single-card .item-number {
        bottom: -20px;
        right: 10px;
        font-size: 1rem;
    }
}

.slider-container {
    width: 95%;
    padding: 0px 20px 0px 20px;
    margin-bottom: 0px;
}

.progress-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #e2e8f0;
    outline: none;
    border-radius: 3px;
    cursor: pointer;
}

.progress-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: #4299e1;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px rgba(66, 153, 225, 0.3);
}

.progress-slider::-webkit-slider-thumb:hover {
    background: #3182ce;
    transform: scale(1.1);
}

.progress-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: #4299e1;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px rgba(66, 153, 225, 0.3);
}

.progress-slider::-moz-range-thumb:hover {
    background: #3182ce;
    transform: scale(1.1);
}

.progress-slider::-moz-range-progress {
    background: #4299e1;
    height: 6px;
    border-radius: 3px;
}

@media (max-width: 768px) {
    .single-card {
        width: 95%;
        height: 60vh;
    }

    .slider-container {
        padding: 10px 15px 15px 15px;
    }
}