/* ========================================
   Grid-Choice v28199 - 選擇題元件樣式（緊湊模式）
   ======================================== */

/* CSS 變數定義 */
:root {
    /* 配色系統（11 種） */
    --choice-color-1: #A6E5E5;    /* 天藍色 */
    --choice-color-2: #a9e86b;    /* 螢光綠 */
    --choice-color-3: #C3A5E5;    /* 薰衣草色 */
    --choice-color-4: #84c498;    /* 嫩芽綠 */
    --choice-color-5: #E5A6A6;    /* 珊瑚紅 */
    --choice-color-6: #E5E5A6;    /* 淺黃色 */
    --choice-color-7: #E5C3B3;    /* 淺鮭魚粉 */
    --choice-color-8: #b39546;    /* 暖棕色 */
    --choice-color-9: #c6c7bd;    /* 蛋殼白 */
    --choice-color-10: #FFB3D9;   /* 少女粉 */
    --choice-color-11: #f69653;   /* 活力橘 */
    
    /* 緊湊模式間距（預設） */
    --choice-padding: 10px;
    --choice-question-margin: 0px 0px 8px 0px;
    --choice-options-gap: 6px;
    --choice-option-padding: 8px 10px;
    --choice-button-size: 30px;
    --choice-button-gap: 5px;
    --choice-border-radius: 6px;
    
    /* 字體大小 - 統一為 1rem */
    --choice-question-size: 1rem;
    --choice-option-size: 1rem;
    --choice-letter-size: 1rem;
    --choice-button-icon-size: 1rem;
}

/* ========================================
   群組容器
   ======================================== */
.grid-choice-group {
    margin: 24px 0px;
}

.grid-choice-group-title {
    font-size: 1rem;
    font-weight: 700;
    color: #c6c7bd;
    margin: 0px 0px 16px 0px;
    padding: 0px 0px 10px 0px;
    border-bottom: 2px solid rgba(198, 199, 189, 0.3);
}

/* ========================================
   主容器
   ======================================== */
.grid-choice-v28199 {
    background-color: #242426;
    border: 2px solid var(--choice-color-1);
    border-radius: var(--choice-border-radius);
    padding: var(--choice-padding);
    margin: 20px 0px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: #c6c7bd;
    position: relative;
}

/* 隱藏內嵌的內容元素（僅供 JavaScript 讀取） */
.choice-question-content,
.choice-description-content {
    display: none;
}

/* 群組內的考題間距 */
.grid-choice-group .grid-choice-v28199 {
    margin: 16px 0px;
}

/* 有編號的考題增加上方內邊距 */
.grid-choice-v28199[data-number] {
    padding-top: 36px;
}

/* 考題編號 */
.grid-choice-v28199[data-number]::before {
    content: attr(data-number);
    position: absolute;
    top: -2px;
    left: -2px;
    background-color: var(--number-bg-color, #A6E5E5);
    color: #1C1C1E;
    font-size: 1rem;
    font-weight: 700;
    padding: 9px;
    border-radius: 4px 0px var(--choice-border-radius) 0px;
    line-height: 1;
    z-index: 1;
}

/* 垂直佈局（預設） */
.grid-choice-v28199[data-layout="vertical"],
.grid-choice-v28199:not([data-layout]) {
    display: flex;
    flex-direction: column;
}

/* 橫向佈局 */
.grid-choice-v28199[data-layout="horizontal"] {
    display: grid;
    grid-template-columns: 1fr 1.5fr auto;
    gap: 16px;
    align-items: start;
}

/* ========================================
   題目區域
   ======================================== */
.choice-question {
    font-size: var(--choice-question-size);
    font-weight: 600;
    line-height: 1.4;
    color: #c6c7bd;
    margin: var(--choice-question-margin);
}

/* 橫向佈局的題目 */
.grid-choice-v28199[data-layout="horizontal"] .choice-question {
    margin: 0px;
    padding-right: 12px;
}

/* ========================================
   選項網格容器
   ======================================== */
.choice-options-container {
    margin-bottom: 8px;
}

/* 橫向佈局的選項容器 */
.grid-choice-v28199[data-layout="horizontal"] .choice-options-container {
    margin-bottom: 0px;
}

.choice-options-grid {
    display: grid;
    gap: var(--choice-options-gap);
}

/* 1 列 */
.choice-options-grid[data-columns="1"] {
    grid-template-columns: 1fr;
}

/* 2 列 */
.choice-options-grid[data-columns="2"] {
    grid-template-columns: repeat(2, 1fr);
}

/* 3 列 */
.choice-options-grid[data-columns="3"] {
    grid-template-columns: repeat(3, 1fr);
}

/* 4 列 */
.choice-options-grid[data-columns="4"] {
    grid-template-columns: repeat(4, 1fr);
}

/* ========================================
   選項按鈕
   ======================================== */
.choice-option {
    background-color: transparent;
    border: 2px solid;
    border-color: inherit;
    border-radius: 4px;
    padding: var(--choice-option-padding);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 3px;
    position: relative;
    opacity: 0.6;
}

.choice-option:hover:not(.disabled) {
    opacity: 1;
    transform: translateY(-1px);
}

/* 選項字母 */
.choice-option-letter {
    font-size: var(--choice-letter-size);
    font-weight: 700;
    opacity: 0.7;
    line-height: 1;
}

/* 選項文字 */
.choice-option-text {
    font-size: var(--choice-option-size);
    line-height: 1.3;
    color: #c6c7bd;
}

/* 選中狀態 */
.choice-option.selected {
    opacity: 1;
    background-color: inherit;
    border-color: inherit;
}

.choice-option.selected .choice-option-text {
    color: #1C1C1E;
    font-weight: 600;
}

.choice-option.selected .choice-option-letter {
    color: #1C1C1E;
    opacity: 0.8;
}

/* 正確答案 */
.choice-option.correct {
    background-color: #84c498 !important;
    border-color: #84c498 !important;
    opacity: 1;
}

.choice-option.correct .choice-option-text,
.choice-option.correct .choice-option-letter {
    color: #1C1C1E !important;
}

.choice-option.correct::after {
    content: '\f26b';
    font-family: 'bootstrap-icons';
    position: absolute;
    top: 8px;
    right: 8px;
    color: #1C1C1E;
    font-size: 1rem;
}

/* 錯誤答案 */
.choice-option.incorrect {
    background-color: #E5A6A6 !important;
    border-color: #E5A6A6 !important;
    opacity: 1;
}

.choice-option.incorrect .choice-option-text,
.choice-option.incorrect .choice-option-letter {
    color: #1C1C1E !important;
}

.choice-option.incorrect::after {
    content: '\f623';
    font-family: 'bootstrap-icons';
    position: absolute;
    top: 8px;
    right: 8px;
    color: #1C1C1E;
    font-size: 1rem;
}

/* 顯示答案模式 */
.choice-option.show-answer {
    background-color: inherit;
    border-width: 3px;
    opacity: 1;
}

/* 禁用狀態 */
.choice-option.disabled {
    cursor: not-allowed;
}

/* ========================================
   按鈕區域
   ======================================== */
.choice-buttons {
    display: flex;
    gap: var(--choice-button-gap);
    align-items: center;
}

/* 橫向佈局的按鈕 */
.grid-choice-v28199[data-layout="horizontal"] .choice-buttons {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.choice-btn {
    width: var(--choice-button-size);
    height: var(--choice-button-size);
    border: 2px solid;
    border-color: inherit;
    background-color: transparent;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    color: inherit;
    font-size: var(--choice-button-icon-size);
    flex-shrink: 0;
}

.choice-btn:hover:not(:disabled) {
    background-color: inherit;
    color: #1C1C1E;
    transform: scale(1.1);
}

.choice-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* 橫向佈局的按鈕保持固定尺寸 */
.grid-choice-v28199[data-layout="horizontal"] .choice-btn {
    width: var(--choice-button-size);
}

/* ========================================
   結果區域
   ======================================== */
.choice-result {
    margin-top: 10px;
    padding: 8px;
    border-radius: 4px;
    line-height: 1.4;
}

.choice-result-correct {
    background-color: rgba(132, 196, 152, 0.2);
    color: #84c498;
    border: 1px solid #84c498;
    padding: 8px 10px;
    border-radius: 4px;
    margin-bottom: 6px;
}

.choice-result-incorrect {
    background-color: rgba(229, 166, 166, 0.2);
    color: #E5A6A6;
    border: 1px solid #E5A6A6;
    padding: 8px 10px;
    border-radius: 4px;
    margin-bottom: 6px;
}

.choice-result-description {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 2px solid rgba(198, 199, 189, 0.2);
    font-size: 1rem;
    line-height: 1.4;
    color: rgba(198, 199, 189, 0.9);
}

/* ========================================
   Modal 彈窗
   ======================================== */
.grid-choice-v28199-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.grid-choice-v28199-modal.show {
    display: flex;
}

.grid-choice-v28199-modal-content {
    background-color: #242426;
    border: 2px solid #A6E5E5;
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: slideIn 0.3s ease;
}

.grid-choice-v28199-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    background-color: #E5A6A6;
    color: #1C1C1E;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: bold;
    transition: all 0.2s;
}

.grid-choice-v28199-modal-close:hover {
    background-color: #d19292;
    transform: scale(1.1);
}

.grid-choice-v28199-modal-body {
    padding: 40px 20px 20px 20px;
    color: #c6c7bd;
    line-height: 1.6;
}

/* ========================================
   動畫效果
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(195, 165, 229, 0.7);
    }
    50% {
        transform: scale(1.01);
        box-shadow: 0 0 0 8px rgba(195, 165, 229, 0);
    }
}

/* ========================================
   完形填空題組
   ======================================== */
.cloze-test-group {
    background-color: #242426;
    border: 2px solid #C3A5E5;
    border-radius: 8px;
    padding: 16px;
    margin: 20px 0px;
}

/* 主題顏色支援 */
.cloze-test-group[data-theme-color] {
    border-color: var(--cloze-theme-color);
}

.cloze-test-title {
    font-size: 1rem;
    font-weight: 700;
    color: #C3A5E5;
    margin: 0px 0px 10px 0px;
    padding: 0px 0px 8px 0px;
    border-bottom: 2px solid rgba(195, 165, 229, 0.3);
}

.cloze-test-group[data-theme-color] .cloze-test-title {
    color: var(--cloze-theme-color);
    border-bottom-color: var(--cloze-theme-color);
}

.cloze-passage {
    background-color: rgba(198, 199, 189, 0.05);
    border: 2px solid rgba(198, 199, 189, 0.2);
    border-radius: 4px;
    padding: 12px;
    margin-bottom: 8px;
    font-size: 1rem;
    line-height: 2;
    color: #c6c7bd;
}

.cloze-passage .blank {
    display: inline-block;
    min-width: 50px;
    padding: 12px 28px;
    background-color: rgba(195, 165, 229, 0.15);
    border: 2px dashed #C3A5E5;
    border-radius: 4px;
    color: #C3A5E5;
    font-weight: 600;
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cloze-test-group[data-theme-color] .cloze-passage .blank {
    background-color: var(--cloze-theme-color-light);
    border-color: var(--cloze-theme-color);
    color: var(--cloze-theme-color);
}

.cloze-passage .blank:hover {
    background-color: rgba(195, 165, 229, 0.25);
    transform: translateY(-1px);
    border-color: #b090d0;
}

.cloze-test-group[data-theme-color] .cloze-passage .blank:hover {
    background-color: var(--cloze-theme-color-medium);
    border-color: var(--cloze-theme-color);
}

.cloze-passage .blank::before {
    content: attr(data-number);
    position: absolute;
    top: -8px;
    left: -8px;
    background-color: #C3A5E5;
    color: #1C1C1E;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.cloze-test-group[data-theme-color] .cloze-passage .blank::before {
    background-color: var(--cloze-theme-color);
}

.cloze-passage .blank.filled {
    background-color: rgba(166, 229, 229, 0.2);
    border-color: #A6E5E5;
    color: #A6E5E5;
}

.cloze-passage .blank.correct {
    background-color: rgba(132, 196, 152, 0.3);
    border-color: #84c498;
    color: #84c498;
    border-style: solid;
}

.cloze-passage .blank.incorrect {
    background-color: rgba(229, 166, 166, 0.3);
    border-color: #E5A6A6;
    color: #E5A6A6;
    border-style: solid;
}

.cloze-questions {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--cloze-question-gap, 10px);
}

/* 完形填空題組支援多欄排版 */
.cloze-test-group[data-columns="2"] .cloze-questions {
    grid-template-columns: repeat(2, 1fr);
}

.cloze-test-group[data-columns="3"] .cloze-questions {
    grid-template-columns: repeat(3, 1fr);
}

.cloze-questions .grid-choice-v28199 {
    margin: 0px;
    padding: 10px;
}

/* 完形填空題組內的選擇題繼承主題顏色 */
.cloze-test-group[data-theme-color] .cloze-questions .grid-choice-v28199 {
    border-color: var(--cloze-theme-color);
    color: var(--cloze-theme-color);
}

.cloze-test-group[data-theme-color] .cloze-questions .choice-option {
    border-color: var(--cloze-theme-color);
    color: var(--cloze-theme-color);
}

.cloze-test-group[data-theme-color] .cloze-questions .choice-option.selected {
    background-color: var(--cloze-theme-color);
}

.cloze-test-group[data-theme-color] .cloze-questions .choice-btn {
    border-color: var(--cloze-theme-color);
    color: var(--cloze-theme-color);
}

.cloze-test-group[data-theme-color] .cloze-questions .choice-btn:hover:not(:disabled) {
    background-color: var(--cloze-theme-color);
}

/* 移除完形填空題目的編號方框以節省空間 */
.cloze-questions .grid-choice-v28199[data-blank-number] {
    /* 不再需要額外的 padding-top */
}

/* 在題目文字前顯示編號 */
.cloze-questions .grid-choice-v28199[data-blank-number] .choice-question::before {
    content: attr(data-blank-number);
    display: inline-block;
    background-color: var(--number-bg-color, #C3A5E5);
    color: #1C1C1E;
    font-size: 1rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    margin-right: 6px;
}

/* 如果沒有題目文字，則編號顯示在選項容器前 */
.cloze-questions .grid-choice-v28199[data-blank-number]:not(:has(.choice-question))::before {
    content: "題目 " attr(data-blank-number);
    display: block;
    background-color: var(--number-bg-color, #C3A5E5);
    color: #1C1C1E;
    font-size: 1rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    margin-bottom: 8px;
    width: fit-content;
}

/* 完形填空中的題目區域緊湊化 */
.cloze-questions .choice-question {
    font-size: 1rem;
    margin: 0px 0px 8px 0px;
}

.cloze-questions .choice-options-container {
    margin-bottom: 8px;
}

.cloze-questions .choice-result {
    margin-top: 8px;
}

/* 回到題目區按鈕 */
.back-to-passage-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: rgba(166, 229, 229, 0.15);
    border: 2px solid #A6E5E5;
    color: #A6E5E5;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 10px;
}

.back-to-passage-btn:hover {
    background-color: rgba(166, 229, 229, 0.25);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(166, 229, 229, 0.3);
}

.back-to-passage-btn:active {
    transform: translateY(0px);
}

.back-to-passage-btn.hidden {
    display: none;
}

/* 完形填空統計區域 */
.cloze-statistics {
    background-color: rgba(198, 199, 189, 0.05);
    border: 2px solid rgba(198, 199, 189, 0.2);
    border-radius: 6px;
    padding: 12px;
    margin-top: 12px;
    display: none;
}

.cloze-statistics.show {
    display: block;
}

.cloze-statistics-title {
    font-size: 1rem;
    font-weight: 700;
    color: #c6c7bd;
    margin-bottom: 10px;
}

.cloze-statistics-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
}

.cloze-stat-item {
    text-align: center;
    padding: 8px;
    background-color: rgba(198, 199, 189, 0.1);
    border-radius: 6px;
}

.cloze-stat-value {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.cloze-stat-label {
    font-size: 1rem;
    opacity: 0.8;
}

/* ========================================
   響應式設計
   ======================================== */
@media (max-width: 768px) {
    /* 橫向佈局在小螢幕改為垂直 */
    .grid-choice-v28199[data-layout="horizontal"] {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .grid-choice-v28199[data-layout="horizontal"] .choice-question {
        padding-right: 0px;
        margin-bottom: 12px;
    }
    
    .grid-choice-v28199[data-layout="horizontal"] .choice-buttons {
        flex-direction: row;
    }
    
    .grid-choice-v28199[data-layout="horizontal"] .choice-btn {
        width: var(--choice-button-size);
    }
    
    /* 選項網格在小螢幕減少列數 */
    .choice-options-grid[data-columns="4"],
    .choice-options-grid[data-columns="3"] {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 完形填空題組在小螢幕改為單欄 */
    .cloze-test-group[data-columns="2"] .cloze-questions,
    .cloze-test-group[data-columns="3"] .cloze-questions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .choice-options-grid[data-columns="4"],
    .choice-options-grid[data-columns="3"],
    .choice-options-grid[data-columns="2"] {
        grid-template-columns: 1fr;
    }
}