/*
 * =============================================================================
 * testLit.css — CSS render TĨNH cho Lit question components (testLit / preview)
 * =============================================================================
 *
 * MỤC ĐÍCH
 * - Mirror layout/khung hiển thị ban đầu của câu hỏi khi KHÔNG chạy shadow DOM
 *   hoặc khi cần style ngoài component (preview, static HTML, một số trang teachercategories).
 * - Nguồn logic render thật: resources/modules/olmeditor/questionEditor/renderQuestion/
 *
 * QUY TẮC ĐỒNG BỘ (AI / dev đọc trước khi sửa)
 * ---------------------------------------------------------------------------
 * 1. Khi chỉnh CSS layout/typography trong file typeQuestion (*.ts static styles
 *    hoặc css`...` trong @customElement), PHẢI rà và cập nhật section tương ứng
 *    trong file này nếu thay đổi ảnh hưởng giao diện render tĩnh.
 *
 * 2. Map nguồn chính (desktop / mobile tách section riêng nếu có):
 *    | Section testLit.css          | File nguồn (renderQuestion/typeQuestion)        |
 *    |------------------------------|-------------------------------------------------|
 *    | QuestionType                 | questionType.ts (static styles chung)           |
 *    | QuizX / QuizX Mobile         | quizX/typeQuizX.ts, typeQuizXGameMobile.ts     |
 *    | DragText / Mobile            | dragText/typeDragText.ts, typeDragTextMobile.ts |
 *    | DragMore / Mobile            | dragMore/typeDragMore.ts, typeDragMoreMobile.ts |
 *    | FillMe / Mobile              | fillMe/ (base + mobile)                         |
 *    | SortList / Mobile            | sortList/                                       |
 *    | TwoList / Mobile             | twoList/typeTwoList.ts, typeTwoListMobile.ts    |
 *    | LinkList                     | linkList/typeLinkList.ts                        |
 *    | MergeList                    | typeMergeList.ts                                |
 *    | Advance                      | advance/                                        |
 *    | FindWrong / Mobile           | findWrong/                                      |
 *    | TrueFalse / Mobile           | trueFalse/                                      |
 *    | FlashCard / Mobile           | flashCard/                                      |
 *    | GroupList / Mobile           | groupList/                                      |
 *    | SelectText / Mobile          | selectText/typeSelecText.ts, typeSelecTextMobile|
 *    | UnderLine / Mobile           | underLine/                                      |
 *    | UnderList / Mobile           | underList/                                      |
 *    | TypeMix                      | typeMix/                                        |
 *    | Paragraph                    | paragraph/typeParagraph.ts                      |
 *
 * 3. Pattern layout text inline (áp dụng khi extended-text tách nhiều <span>):
 *    - Container (.boxlink, .two-column-left, .two-list, #dragtext p, ...):
 *      display: block + text-align: center (hoặc inline-flex chỉ khi cần căn chip).
 *    - Con trực tiếp span/p/strong/...: display: inline; margin: 0;
 *    - .mark-audio trong cùng dòng chữ: display: inline-flex; vertical-align: middle;
 *    - KHÔNG dùng display:flex trên container chỉ để căn chữ — sẽ tách "4. " và nội dung.
 *
 * 4. Ưu tiên CSS variables (--olm-*) đã khai báo :root bên dưới thay vì hard-code màu
 *    khi section đã dùng token OLM.
 *
 * KHÔNG ĐƯA VÀO FILE NÀY (chỉ phục vụ render tĩnh ban đầu)
 * ---------------------------------------------------------------------------
 * - Trạng thái chấm đúng/sai sau khi làm bài hoặc xem đáp án:
 *   .xcorrect, .xwrong, .xcorrect:after, .xwrong:after
 * - Trạng thái tương tác / đã chọn đáp án:
 *   :has(.drag-select), .selectpoint, .active, .selected, .activeBox
 * - Hiển thị đáp án đúng, hướng dẫn giải sau submit:
 *   .correct-answer-section, makeCorrectAns, isShowCorrectAnswer
 * - Logic game động (jsonContext), bottom sheet mobile sau khi chọn, sticky answer bar
 *
 * Các rule loại trên nếu đã có trong file là legacy — KHÔNG copy thêm từ typeQuestion
 * khi sync; chỉ đồng bộ khung layout, typography, kích thước ô, border mặc định lúc mới load.
 *
 * CÁCH KIỂM TRA SAU KHI SỬA
 * - So sánh static styles trong file .ts với section "(static render)" tương ứng.
 * - Desktop vs mobile: mobile thường nằm trong @media (max-width: 768px).
 * - Build/preview testLit nếu trang teachercategories load file này trực tiếp.
 * =============================================================================
 */

/* ================== CSS Variables ============================ */
:root {
    /* Primary Colors */
    --olm-primary: #5c5bff;
    --olm-primary-light: #e4eaff;
    --olm-primary-hover: #4a49e6;

    /* Status Colors */
    --olm-correct: #34b766;
    --olm-correct-light: #dff9e8;
    --olm-wrong: #dd1313;
    --olm-wrong-light: #ffeaea;

    /* Neutral Colors */
    --olm-white: #fff;
    --olm-black: #1a1a1a;
    --olm-text: #525252;
    --olm-text-dark: #454545;
    --olm-text-light: #737373;

    /* Border Colors */
    --olm-border: #e5e5e5;
    --olm-border-dark: #d1d1d1;
    --olm-border-input: #cacece;
    --olm-border-card: #c5c5c5;

    /* Background Colors */
    --olm-bg-light: #f5f5f5;
    --olm-bg-muted: #f2f5fa;
    --olm-bg-input: #fafafa;
    --olm-bg-orange: #ffede4;

    /* Drag/Drop Colors */
    --olm-drag-bg: #dff4ff;
    --olm-drag-border: #5cb1dc;
    --olm-drag-box: #bae1f5;
    --olm-drag-box-border: #82b5ce;
    --olm-drag-active: rgb(255, 226, 138);
    --olm-drag-highlight: #1e9ad6;

    /* Audio Player */
    --olm-audio-bg: #6364ff;
    --olm-audio-progress: #aab2ff;

    /* Border Radius */
    --olm-radius-xs: 0.25rem;
    --olm-radius-sm: 0.5rem;
    --olm-radius-md: 0.75rem;
    --olm-radius-lg: 1rem;
    --olm-radius-xl: 1.25rem;
    --olm-radius-full: 50%;

    /* Shadows */
    --olm-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --olm-shadow-md: 0 2px 0 0 var(--olm-border);
    --olm-shadow-correct: 0 2px 0 0 var(--olm-correct);
    --olm-shadow-wrong: 0 2px 0 0 var(--olm-wrong);
    --olm-shadow-primary: 0 2px 0 0 var(--olm-primary);

    /* Spacing */
    --olm-gap-xs: 0.25rem;
    --olm-gap-sm: 0.5rem;
    --olm-gap-md: 0.75rem;
    --olm-gap-lg: 1rem;
}

/* ================== QuestionType ============================ */
/* @source questionType.ts (static styles) — base chung mọi dạng; sync khi đổi shared layout */
.katex {
    word-break: break-word;
}

.d-flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

ul {
    list-style: disc;
    padding-left: 1.5rem;
}

ol {
    list-style: decimal;
    padding-left: 1.5rem;
}

.btn-submit-test {
    background: var(--olm-primary);
    color: var(--olm-white);
    border: none;
    padding: 0.8rem 1.2rem;
    border-radius: var(--olm-radius-xs);
}

.box-select-option.reading-in {
    padding: 0;
}

.reading-in .box-select-option-content {
    max-height: 18rem;
}

.box-select-option h3 {
    margin: 0rem;
    margin-bottom: var(--olm-gap-xs);
}

.box-select-option {
    text-align: center;
    position: fixed;
    bottom: 0;
    right: 0;
    width: 100%;
    min-height: 8.75rem;
    border-radius: var(--olm-radius-xl) var(--olm-radius-xl) 0rem 0rem;
    background-color: var(--olm-white);
    padding: 0 0 var(--olm-radius-xl) 0;
    z-index: 1000;
    user-select: none;
}

.box-select-option:before {
    content: "";
    width: 40px;
    height: 6px;
    background: var(--olm-border-dark);
    border-radius: 10px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.box-select-option-content {
    color: var(--olm-text);
    font-size: 1.2em;
    height: 100%;
    margin: 0px;
    padding: 0px;
    display: flex;
    width: auto;
    justify-content: flex-start;
    gap: var(--olm-gap-sm);
    flex-wrap: wrap;
    margin: 0 var(--olm-radius-xl);
    max-height: 14rem;
    overflow: auto;
    align-items: flex-start;
}

.box-select-option-content p {
    margin: 0;
}

.box-select-option .select-option-item {
    padding: var(--olm-gap-sm) var(--olm-gap-lg);
    border-radius: var(--olm-radius-md);
    border: 1px solid var(--olm-border);
    background: var(--olm-bg-light);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: fit-content;
    width: auto;
}

.select-option-item {
    text-align: left;
}

.select-option .select-option-item {
    display: flex;
    align-items: center;
    justify-content: center;
}

.select-option {
    height: 3rem;
    min-width: 10rem;
    position: relative;
    border-radius: var(--olm-radius-md);
    border: 2px solid var(--olm-border-dark);
    background: var(--olm-white);
    text-align: center;
    vertical-align: middle;
    width: fit-content;
    font-size: 1rem;
}

.box-select-option .select-option-item.selected {
    border-radius: var(--olm-radius-md);
    border: 2px solid var(--olm-primary);
    background: var(--olm-primary-light);
    color: var(--olm-primary);
}

.box-overlay {
    z-index: 100;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.home-bar {
    width: 1rem;
    height: 1rem;
    background-image: url(olm_images/renderquestion/icons/close.svg);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    cursor: pointer;
    padding: 0.25rem;
    margin-right: 0.25rem;
}

.scroll-container {
    overflow: auto; /* Cho phép cuộn */
    padding: 0 0.5rem;
}

.scroll-container::-webkit-scrollbar {
    width: 0.3rem;
    height: 0.3rem;
}

.scroll-container::-webkit-scrollbar-thumb {
    background-color: #5c5bff;
    border-radius: 10px;
}

.scroll-container::-webkit-scrollbar-track {
    background-color: #f1f1f1;
    border-radius: 10px;
}

.scroll-container-hide {
    overflow: auto; /* Cho phép cuộn */
    padding: 0.5rem;
    -ms-overflow-style: none; /* Ẩn scrollbar trên IE & Edge */
    scrollbar-width: none; /* Ẩn scrollbar trên Firefox */
}

/* Ẩn scrollbar trên Chrome, Safari */
.scroll-container-hide::-webkit-scrollbar {
    display: none;
}

.simpleplayer-play-control,
.simpleplayer-stop-control {
    bottom: -1px;
    display: block;
    height: 20px;
    position: relative;
    width: 20px;
}
.simpleplayer-play-control {
    background-image: url(https://rs.olm.vn/vendor/lib_question/qlib/images/play.png);
}

/* Thanh audio cố định dưới đáy màn hình (câu hỏi) */
.mark-audio-textbook {
    display: inline-flex;
    vertical-align: middle;
    position: relative;
    overflow: visible;
}
.mark-audio-textbook-shell {
    position: relative;
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    overflow: visible;
}
.mark-audio-textbook-shell.is-active .mark-audio-textbook-speaker {
    filter: brightness(0.92);
}
.mark-audio-textbook-speaker {
    flex-shrink: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}
.mark-audio-textbook-dock {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 10000;
    display: flex;
    background: #fff;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    transform: translateY(100%);
    transition: transform 0.4s ease-in-out;
    padding-bottom: env(safe-area-inset-bottom, 0px);
}
.mark-audio-textbook-dock.is-open {
    transform: translateY(0);
}
.mark-audio-textbook-dock-inner {
    margin: 0 auto;
    display: flex;
    align-items: center;
}
.mark-audio-textbook-dock-inner audio {
    display: block;
    min-width: 0;
}
.mark-audio-textbook-dock-close {
    padding: 0.5rem;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    cursor: pointer;
    background: transparent;
    line-height: 0;
}
.mark-audio-textbook-dock-close:hover {
    background: #e8f6f4;
}
.mark-audio-textbook-dock-close img {
    display: block;
    width: auto;
    height: auto;
}

.disable-event {
    pointer-events: none;
    user-drag: none;
    -webkit-user-drag: none;
    position: relative;
}

.disable-event .mark-audio {
    position: relative !important;
    cursor: pointer !important;
    pointer-events: auto !important;
    /* user-drag: none;
    -webkit-user-drag: none; */
    /* z-index: 10000; */
}

.user-select-none {
    user-select: none;
}

.custom-audio-player {
    background: var(--olm-audio-bg);
    border-radius: var(--olm-radius-sm);
    padding: var(--olm-gap-sm) var(--olm-gap-md);
    display: flex;
    align-items: center;
    gap: var(--olm-gap-xs);
    color: var(--olm-white);
    width: 100%;
    max-width: 700px;
    box-sizing: border-box;
}
.audio-play-btn {
    background: none;
    border: none;
    outline: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}
.audio-play-btn svg {
    width: 32px;
    height: 32px;
    fill: var(--olm-white);
}
.audio-time {
    font-size: 1.125rem;
    min-width: 60px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}
.audio-progress-container {
    flex: 1;
    display: flex;
    align-items: center;
    height: 2.5rem;
    margin: 0 var(--olm-gap-lg);
}
.audio-progress-bar {
    width: 100%;
    height: 0.4rem;
    background: var(--olm-audio-progress);
    border-radius: 0.35rem;
    position: relative;
    cursor: pointer;
}
.audio-progress {
    background: var(--olm-white);
    height: 100%;
    border-radius: 0.35rem;
    position: absolute;
    left: 0;
    top: 0;
}
.audio-progress-knob {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 1.2rem;
    height: 1.2rem;
    background: var(--olm-white);
    border-radius: var(--olm-radius-full);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    left: 0;
}

p:has(.mark-audio) {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
[class^="quiz-container"] {
    position: relative !important;
    min-height: 120px !important;
}

/* ===================== QuizX ============================ */
.quiz-list {
    list-style: none;
}
.qselect {
    border-color: transparent;
    cursor: pointer;
    position: relative;
    display: flex;
    margin-bottom: 10px;
    align-items: center;
    gap: 4px;
}

.correctq .qiradio:before {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png);
    left: 22px;
    position: absolute;
    top: -10px;
    z-index: 50;
}

.wrongq .qiradio:before {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png);
    left: 12px;
    position: absolute;
    top: 0;
    z-index: 50;
}

.correctq .qcheckbox:before {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png);
    left: 22px;
    position: absolute;
    top: -10px;
    z-index: 50;
}

.wrongq .qcheckbox:before {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png);
    left: 12px;
    position: absolute;
    top: 0;
    z-index: 50;
}

.qiradio {
    -webkit-appearance: none;
    border: 1px solid #cacece;
    border-radius: 50px;
}

.qcheckbox {
    border: 1px solid #cacece;
    border-radius: 3px;
}

.qchecked > .qcheckbox:after {
    color: #4caf50;
    content: "■";
    font-size: 2rem;
    left: 50%;
    top: 25%;
    transform: translate(-50%, -50%);
    position: absolute;
}

.qcheckbox,
.qiradio {
    background-color: var(--olm-bg-input);
    box-shadow: var(--olm-shadow-sm), inset 0 -15px 10px -12px rgba(0, 0, 0, 0.05);
    display: inline-block;
    margin-right: 3px;
    padding: 12px;
    position: relative;
    flex-shrink: 0;
}
.qselect > .qsign.lala {
    line-height: 28px;
}
.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 0.9rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: color 0.15s ease-in-out,
        background-color 0.15s ease-in-out,
        border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}
.btn-danger {
    color: #fff;
    background: #dc3545 linear-gradient(180deg, #e15361, #dc3545)
        repeat-x;
    border-color: #dc3545;
}
.qchecked > .qiradio:after {
    background: #4caf50;
    border-radius: 50px;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
    content: " ";
    font-size: 1.74em;
    height: 18px;
    left: 50%;
    position: absolute;
    text-shadow: 0;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
}
.simpleplayer-play-control,
.simpleplayer-stop-control {
    bottom: -1px;
    display: block;
    height: 20px;
    position: relative;
    width: 20px;
}
.simpleplayer-play-control {
    background-image: url(https://rs.olm.vn/vendor/lib_question/qlib/images/play.png);
}

a {
    text-decoration: none;
    outline: none;
    color: #007bff;
}

.answer-container:has(.reading-in) {
    display: block;
}

.answer-container {
    display: grid;
    gap: 10px;
}
.answer-container.two-columns {
    grid-template-columns: repeat(2, 1fr);
}
.answer-container.one-column {
    grid-template-columns: 1fr;
}

.sign {
    display: flex;
    align-items: center;
}


/* ===================== QuizX Mobile (static render) ============================ */
@media (max-width: 768px) {
    #quiz-list {
        position: relative;
    }

    #quiz-list > p span {
        font-size: 1.125rem;
        line-height: 120%; /* 1.35rem */
    }

    span {
        font-size: 1rem;
        line-height: 1.5rem; /* 150% */
    }

    .btn {
        display: inline-block;
        font-weight: 400;
        text-align: center;
        vertical-align: middle;
        user-select: none;
        border: 1px solid transparent;
        padding: 0.375rem 0.75rem;
        font-size: 0.9rem;
        line-height: 1.5;
        border-radius: 0.25rem;
        transition:
            color 0.15s ease-in-out,
            background-color 0.15s ease-in-out,
            border-color 0.15s ease-in-out,
            box-shadow 0.15s ease-in-out;
    }

    .qselect {
        border: 1px solid var(--olm-text-light);
        border-radius: var(--olm-radius-md);
        padding: var(--olm-gap-md);
        cursor: pointer;
        position: relative;
        display: flex;
        align-items: center;
        margin-bottom: 10px;
        gap: var(--olm-gap-md);
        justify-content: flex-start;
        align-items: center;
    }

    .qiradio {
        -webkit-appearance: none;
        border: 1.5px solid var(--olm-text-light);
        border-radius: var(--olm-radius-full);
        pointer-events: none;
    }

    .qcheckbox {
        border: 1px solid var(--olm-border-input);
        border-radius: 3px;
        overflow: hidden;
    }

    .qchecked > .qcheckbox {
        border: 1px solid var(--olm-primary-light);
    }

    .wrongq > .qcheckbox:after,
    .correctq > .qcheckbox:after,
    .qchecked > .qcheckbox:after {
        background-color: var(--olm-primary);
        color: var(--olm-white);
        font-size: 0.5rem;
        padding: 25%;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        position: absolute;
        content: "✔";
        font-weight: bold;
    }

    .qcheckbox,
    .qiradio {
        background-color: var(--olm-bg-input);
        box-shadow: var(--olm-shadow-sm), inset 0 -15px 10px -12px rgba(0, 0, 0, 0.05);
        display: inline-block;
        padding: 7px;
        position: relative;
        flex-shrink: 0;
    }

    .btn-danger {
        color: var(--olm-white);
        background: #dc3545 linear-gradient(180deg, #e15361, #dc3545) repeat-x;
        border-color: #dc3545;
    }

    .qchecked {
        border: 1.5px solid var(--olm-primary) !important;
        background-color: var(--olm-primary-light);
    }

    .wrongq {
        border: 1.5px solid var(--olm-wrong) !important;
        background-color: var(--olm-wrong-light);
        box-shadow: var(--olm-shadow-wrong);
    }

    .wrongq .qiradio {
        border: 1px solid var(--olm-wrong) !important;
    }

    .wrongq .qcheckbox {
        border: 1px solid var(--olm-wrong-light);
    }

    .wrongq > .qcheckbox:after,
    .wrongq > .qiradio:after {
        background: var(--olm-wrong) !important;
    }

    .correctq {
        border: 1.5px solid var(--olm-correct) !important;
        background-color: var(--olm-correct-light) !important;
        box-shadow: var(--olm-shadow-correct);
    }

    .correctq .qiradio {
        border: 1.5px solid var(--olm-correct) !important;
    }

    .correctq .qcheckbox {
        border: 1px solid var(--olm-correct-light);
    }

    .correctq > .qcheckbox:after,
    .correctq > .qiradio:after {
        background: var(--olm-correct) !important;
    }

    .qchecked > .qiradio {
        border: 1px solid var(--olm-primary);
    }

    .correctq > .qiradio:after,
    .wrong > .qiradio:after,
    .qchecked > .qiradio:after {
        background: var(--olm-primary);
        border-radius: var(--olm-radius-full);
        content: "";
        font-size: 1.74em;
        height: 9px;
        left: 50%;
        position: absolute;
        text-shadow: 0;
        top: 50%;
        width: 9px;
        transform: translate(-50%, -50%);
    }

    .simpleplayer-play-control,
    .simpleplayer-stop-control {
        bottom: -1px;
        display: block;
        height: 20px;
        position: relative;
        width: 20px;
    }

    a {
        text-decoration: none;
        outline: none;
        color: #007bff;
    }

    .answer-container:has(.reading-in) {
        display: block;
    }

    .answer-container {
        display: grid;
        gap: 10px;
    }
    .answer-container.two-columns {
        grid-template-columns: repeat(2, 1fr);
    }
    .answer-container.one-column {
        grid-template-columns: 1fr;
    }

    .qsign {
        display: flex;
        gap: 1rem;
        align-items: center;
    }
}

/* ===================== DragText (static render) ============================ */
/* @source dragText/typeDragText.ts — chỉ layout ô trống + chip; không thêm xcorrect/xwrong */
#dragtext {
    user-select: none;
}

.dragtext {
    background-color: var(--olm-drag-bg);
    border: 1px dotted var(--olm-drag-border);
    display: inline-flex;
    height: auto;
    line-height: 30px;
    min-height: 1.5em;
    min-width: 40px;
    position: relative;
    text-align: center;
    vertical-align: middle;
}

.dragtext .custom-audio-player {
    scale: 0.6;
}

.dragtext > .drag-select {
    width: 100%;
}

.selectpoint {
    border: 2px solid #ffc672 !important;
    background-color: transparent;
}

.selectpoint.active {
    background-color: var(--olm-drag-active);
}

.dragtext .active {
    background-color: var(--olm-drag-active);
    cursor: grab !important;
}

.item-drag {
    background: var(--olm-drag-box);
    border: 1px solid var(--olm-drag-box-border);
    border-radius: 3px;
    display: block;
    margin-top: 20px;
    min-height: 44px;
    padding: 5px;
    text-align: center;
    position: sticky;
    bottom: 0;
    z-index: 50;
    flex-wrap: wrap;
}

.item-drag > .drag-select {
    display: inline-block !important;
    margin: 5px;
    padding: 4px;
}

.drag-select {
    background-color: var(--olm-white);
    border: 2px dotted #aaa;
    cursor: pointer;
}

.xcorrect:after,
.xwrong:after {
    position: absolute;
    top: -10px;
    z-index: 50;
}
.xcorrect:after {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png);
}

.xwrong:after {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png);
}

/* ===================== DragText Mobile (static render) ============================ */
@media (max-width: 768px) {
    .dragtext {
        height: fit-content;
        border: 1px dotted var(--olm-drag-border);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 2.5rem;
        min-width: 4.5rem;
        padding: var(--olm-gap-sm);
        vertical-align: middle;
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-border-dark);
        background: var(--olm-bg-muted);
    }

    .dragtext:has(.drag-select) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-primary);
        background: var(--olm-primary-light);
    }

    .dragtext:has(.xcorrect) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-correct);
        background: var(--olm-correct-light);
    }

    .dragtext:has(.xwrong) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-wrong);
        background: var(--olm-wrong-light);
    }

    .box-select-option-content {
        max-width: 100%;
    }
}

/* ===================== DragMore (static render) ============================ */
.dragmore {
    background-color: var(--olm-drag-bg);
    border: 1px dotted var(--olm-drag-border);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 28px;
    min-width: 40px;
    padding: 0px;
    vertical-align: middle;
    width: auto;
}

.dragmore,
.dragtext > .drag-select > span {
    position: relative;
}

.items-drag-box {
    background: var(--olm-drag-box);
    border: 1px solid var(--olm-drag-box-border);
    border-radius: 3px;
    display: flex;
    margin-top: 20px;
    min-height: 44px;
    padding: 5px;
    text-align: center;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    position: sticky;
    flex-wrap: wrap;
    bottom: 0;
    z-index: 50;
}

.drag-select,
.drag-select div {
    cursor: pointer;
    display: flex !important;
    justify-content: center;
    align-items: center;
    z-index: 12;
}

.dragmore .drag-select,
.dragmore .drag-select div {
    width: 100%;
}

.items-drag-box > .drag-select {
    display: flex !important;
    margin: 5px;
    padding: 4px;
    user-select: none;
}

/* ===================== DragMore Mobile (static render) ============================ */
@media (max-width: 768px) {
    .dragmore {
        height: fit-content;
        border: 1px dotted var(--olm-drag-border);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 2.5rem;
        min-width: 4.5rem;
        padding: var(--olm-gap-sm);
        vertical-align: middle;
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-border-dark);
        background: var(--olm-bg-muted);
    }

    .dragmore .custom-audio-player {
        scale: 0.6;
    }

    .dragmore:has(.drag-select) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-primary);
        background: var(--olm-primary-light);
    }

    .dragmore:has(.xcorrect) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-correct);
        background: var(--olm-correct-light);
    }

    .dragmore:has(.xwrong) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-wrong);
        background: var(--olm-wrong-light);
    }

    .items-drag-box .custom-audio-player {
        scale: 0.7;
    }
}

/* ===================== FillMe (static render) ============================ */
#fillme-input input {
    background: #fff7da;
    box-sizing: border-box;
    color: blue;
    font-size: 1.12em;
    text-align: center;
    width: auto;
    min-width: 40px;
    max-width: 100%;
    display: inline-block;
    padding: 2px 4px;
}

/* Xử lý input khi nằm trong bảng */
table input[ind] {
    width: auto;
    display: inline-block;
    vertical-align: middle;
    margin: 2px;
    table-layout: fixed;
}

/* Đảm bảo cell trong bảng không mở rộng quá mức */
table td {
    width: auto;
    white-space: normal;
}

.ocorrect {
    background: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png) no-repeat 100% 0;
    border: 1px solid #14a51e !important;
    color: #48ad1f !important;
    min-width: 20px;
}

.owrong {
    background: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png) no-repeat 100% 0;
    border: 1px solid #ff7847 !important;
    color: #ff5520 !important;
    min-width: 40px;
}

/* ===================== FillMe Mobile (static render) ============================ */
@media (max-width: 768px) {
    #fillme-input input {
        box-sizing: unset;
        font-size: 1.12em;
        text-align: center;
        width: 3rem;
        border-radius: 0.75rem;
        padding: 0.75rem;
    }

    #fillme-input input.focus {
        border: 3px solid #5c5bff;
        background: #fff;
        outline: none;
    }

    #fillme-input input.ocorrect {
        border: 3px solid #34b766;
    }

    #fillme-input input.owrong {
        border: 3px solid #dd1313;
    }
}

/* ===================== SortList (static render) ============================ */
.sortable-list {
    width: max-content;
    padding: 20px 40px;
    list-style: none;
    position: relative;
    display: flex;
    flex-wrap: wrap;
}

.sortable-list.vertical {
    display: block;
    padding: 20px 0 20px 40px;
}

.sortable-list.vertical li {
    width: 96%;
    height: 100%;
    align-items: center;
    justify-content: center;
    display: flex !important;
    overflow: hidden;
    gap: 10px;
}

.sortable-list .sortable {
    font-weight: 400;
    line-height: 30px;
    min-height: 50px;
    min-width: 100px;
}

ul.sortable-list li {
    top: 0;
    margin-left: 0 !important;
}

.sortable {
    background: #f6f6f6;
    border: 1px solid #c5c5c5;
    color: #454545;
    cursor: move;
    font-weight: 400;
    height: 18px;
    margin: 5px 5px 10px 3px;
    padding-left: 10px;
}

.sortable-item {
    position: relative;
    cursor: move;
    user-select: none;
}

.sortable-ghost {
    opacity: 0.4;
    background-color: #e8f0fe;
}

.sortable-chosen {
    cursor: grabbing;
}

.sortable-drag {
    opacity: 1;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.owrong {
    border: 1px solid var(--olm-wrong);
    box-shadow: var(--olm-shadow-wrong);
}

.ocorrect {
    border: 1px solid var(--olm-correct);
    box-shadow: var(--olm-shadow-correct);
}

/* ===================== SortList Mobile (static render) ============================ */
@media (max-width: 768px) {
    .sortable span {
        font-weight: 600;
    }

    .sortable-list {
        width: min-content;
        padding: 20px 40px;
        list-style: none;
        position: relative;
        display: flex;
        flex-wrap: wrap;
    }

    .sortable-list.vertical {
        display: block;
        padding: 0;
        width: 100%;
    }

    .sortable-list.vertical li {
        display: flex;
        justify-content: space-between;
        padding: 0.75rem;
        align-items: center;
        background: #fff;
        border-radius: 0.75rem;
        overflow: hidden;
    }

    .sortable-list .sortable {
        display: inline-table;
        font-weight: 400;
        line-height: 30px;
        height: fit-content;
        min-height: 40px;
        min-width: 100px;
    }

    .sortable {
        background: #f6f6f6;
        border: 0.1rem solid #c5c5c5;
        color: #454545;
        font-weight: 400;
        height: 18px;
        margin: 5px 5px 10px 3px;
        padding-left: 10px;
        box-shadow: 0px 2px 0px 0px #e5e5e5;
    }

    .sortable-item:first-child .box-action .up {
        opacity: 0.3;
        cursor: default;
    }

    .sortable-item:last-child .box-action .down {
        opacity: 0.3;
        cursor: default;
    }

    .sortable-item.dragging {
        opacity: 0.5;
        background-color: #d2d2ff;
    }

    .sortable-item.placeholder {
        background-color: #e0e0e0;
        border: 2px dashed #aaa;
        font-weight: 400;
        line-height: 30px;
        min-height: 40px;
        min-width: 100px;
    }

    .sortable-list li.placeholder {
        font-weight: 400;
        line-height: 30px;
        min-height: 40px;
        min-width: 100px;
    }

    .up,
    .down {
        border-radius: 8px;
        border: 1px solid #e5e5e5;
        background: #fff;
        box-shadow: 0px 2px 0px 0px #e5e5e5;
        cursor: pointer;
        padding: 0.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .box-action {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
    }
}

/* ===================== TwoList (static render) ============================ */
.merge-two-columns {
    border-collapse: separate;
    border-spacing: 0 1em;
    display: table;
    width: 100%;
}

.two-list {
    background-color: var(--olm-drag-bg);
    border: 1px dotted var(--olm-drag-border);
    display: flex;
    justify-content: center;
    align-items: center;
}

.two-column-left,
.two-column-middle {
    display: table-cell;
    vertical-align: middle;
}

.two-column-left {
    background: transparent;
    border: 2px solid var(--olm-drag-highlight);
    text-align: center;
    width: 45%;
}

.two-list,
.two-column-left {
    padding: 0 1em;
    min-height: 2.7em;
    min-width: 2.7em;
}

.two-column-right {
    background-color: var(--olm-white);
    border: 2px dashed var(--olm-drag-highlight);
    display: table-cell;
    text-align: center;
    vertical-align: middle;
    width: 45%;
}

.items-drag-box,
.item-drag {
    background: var(--olm-drag-box);
    border: 1px solid var(--olm-drag-box-border);
    border-radius: 3px;
    display: block;
    margin-top: 20px;
    min-height: 3.2em;
    padding: 5px;
    text-align: center;
    vertical-align: middle;
}

.items-drag-box {
    display: flex;
    justify-content: center;
    align-items: center;
    position: sticky;
    bottom: 0;
    z-index: 50;
    flex-wrap: wrap;
}

.items-drag-box > .drag-select,
.item-drag > .drag-select {
    display: inline-flex !important;
    margin: 5px;
    padding: 0.2rem;
    height: fit-content;
}

.drag-select {
    position: relative;
    padding: 0.2rem;
    background-color: #fff;
    border: 2px dotted #aaa;
    cursor: pointer;
    display: inline-flex;
    z-index: 12;
}

.two-column-middle {
    min-width: 2.5em;
    width: auto !important;
}

.two-middle-line {
    border-bottom: 0.36em solid #1e9ad6;
    position: relative;
    width: 100%;
}

.two-middle-line:after,
.two-middle-line:before {
    border: 0.4em solid #1e9ad6;
    border-radius: 50%;
    content: " ";
    height: 0;
    position: absolute;
    top: -0.15em;
    width: 0;
}
.two-middle-line:before {
    left: -0.1em;
}

.two-middle-line:after {
    right: -0.1em;
}

/* ===================== TwoList Mobile (static render) ============================ */
/* @source twoList/typeTwoListMobile.ts — .two-list/.two-column-left: block + con inline */
@media (max-width: 768px) {
    .merge-two-columns {
        border-collapse: separate;
        border-spacing: 0 1em;
        width: 100%;
    }

    .two-list {
        display: block;
        text-align: center;
        box-sizing: border-box;
        line-height: 1.45;
        word-break: break-word;
        overflow-wrap: break-word;
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-border-dark);
        background: var(--olm-bg-muted);
    }

    .two-list .drag-select.select-option-item {
        display: inline-block;
        text-align: center;
        max-width: 100%;
    }

    .two-list .drag-select.select-option-item :is(span, p, strong, b, em, i),
    .box-select-option-content .drag-select.select-option-item :is(span, p, strong, b, em, i) {
        display: inline;
        margin: 0;
    }

    .two-list .custom-audio-player {
        scale: 0.6;
    }

    .two-list:has(.drag-select) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-primary);
        background: var(--olm-primary-light);
    }

    .two-list:has(.xcorrect) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-correct);
        background: var(--olm-correct-light);
    }

    .two-list:has(.xwrong) {
        border-radius: var(--olm-radius-md);
        border: 1px dashed var(--olm-wrong);
        background: var(--olm-wrong-light);
    }

    .two-column-row {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--olm-gap-sm);
        margin-bottom: var(--olm-gap-sm);
        padding: 0 var(--olm-gap-lg);
    }

    .two-column-middle {
        background-image: url(olm_images/renderquestion/icons/caret-right.svg);
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
        width: 1.5rem;
        height: 1.5rem;
    }

    .two-column-left {
        text-align: center;
        width: 45%;
        border-radius: 12px;
        background: var(--olm-bg-orange);
        display: block;
        box-sizing: border-box;
        line-height: 1.45;
        word-break: break-word;
        overflow-wrap: break-word;
    }

    .two-column-left :is(span, p, strong, b, em, i) {
        display: inline;
        margin: 0;
    }

    .two-column-left .mark-audio {
        display: inline-flex;
        vertical-align: middle;
    }

    .two-column-right img {
        max-width: 140px;
    }

    .two-list,
    .two-column-left {
        height: unset;
        padding: var(--olm-gap-lg);
        min-height: 1.7rem;
        min-width: 2.7rem;
    }
}

/* ===================== LinkList (static render) ============================ */
/* @source linkList/typeLinkList.ts — .boxlink: block + span/p inline (không flex căn chữ) */
#link-list {
    position: relative;
    min-height: 360px;
}

#link-list .d-flex {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
}

#link-list .d-flex.direction-column {
    flex-direction: column;
}

.boxlink {
    background: transparent;
    border: 2px solid rgb(207, 153, 207);
    display: block;
    text-align: center;
    min-height: 2.7em;
    padding: 0.7em 1em;
    width: 50%;
    margin-bottom: 10px;
    cursor: pointer;
    position: relative;
    box-sizing: border-box;
    line-height: 1.45;
    word-break: break-word;
    overflow-wrap: break-word;
}

/* extended-text render thành nhiều span liền kề — giữ inline để "4. " đậm + câu hỏi nối một dòng */
.boxlink :is(span, p, strong, b, em, i) {
    display: inline;
    margin: 0;
}

.boxlink .mark-audio {
    display: inline-flex;
    vertical-align: middle;
}

.boxlink.right.selected::before,
.boxlink.left.selected::after {
    content: "";
    position: absolute;
    height: 5px;
    width: 5px;
    background-color: #008000;
    border-radius: 50%;
}

.boxlink.right.selected::before {
    left: -5px;
}

.boxlink.left.selected::after {
    right: -5px;
}

.boxlink:hover {
    background-color: #ddd;
}

.lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.line {
    stroke: green;
    stroke-width: 2;
}

/* ===================== MergeList (static render) ============================ */
.merge-board {
    display: inline-block;
    height: 100%;
    width: 100%;
}

.merge-row .left {
    margin-right: 15px;
}

.block {
    background: transparent;
    display: inline-block;
    position: relative;
    text-align: center;
    vertical-align: middle;
    width: 45%;
    user-select: none;
}

.svg {
    position: absolute;
}

.left svg > .fill {
    fill: #ffd362;
}

.right svg > .fill {
    fill: #8ec8ff;
}

.merge-row .right {
    cursor: move;
    margin-left: 15px;
    position: absolute;
}

.merge-row {
    position: relative;
    display: block;
    margin: 10px;
}

.merge-ct {
    align-items: center;
    display: flex;
    height: 100%;
    justify-content: center;
    min-height: 50px;
    position: relative;
    text-align: center;
    vertical-align: middle;
}

.merge-ct img {
    max-width: 100px;
}

.d-inline-block {
    display: inline-block;
}

/* ===================== Advance (static render) ============================ */
ul.new_click {
    list-style: none;
    text-align: center;
}

ul.new_click li {
    display: inline-block;
    padding: 10px 20px;
    margin: 10px;
    border: solid #b1efb1;
    border-radius: 5px;
    cursor: pointer;
    font-size: 24px;
    width: auto;
}

.new_click > .new_item_click {
    border: solid #61d528;
    background-color: #c4ffc7 !important;
}

.new_input:has(.new_item) {
    width: auto !important;
    list-style: none;
}

.select5 > .btn5 {
    display: inline-block;
    margin-right: 5px;
}

.answer5 > .btn5 {
    display: inline-block;
    margin-right: 1px;
}

.answer5 {
    display: block;
    min-height: 50px;
    border-bottom: solid 2px #cacaca;
    margin-bottom: 20px;
    margin-right: 40px;
    margin-left: 20px;
}

.btn5 {
    margin-bottom: 0.5rem;
}

.btn5 > button {
    user-select: none;
    outline: none;
    background: #e5e5e5;
    font-size: 20px;
    color: #e5e5e5;
    flex-shrink: 0;
    font-weight: 500 !important;
    letter-spacing: normal !important;
    line-height: 1.15 !important;
    text-transform: none !important;
    border-width: 2px 2px 4px;
    border-color: transparent;
    padding: 8px 10px;
    border-radius: 12px;
}

.btn5 > .show {
    background: #fff;
    color: #4b4b4b !important;
    border-color: #cfd1cf !important;
    border: 1px solid #e5e5e5;
    box-shadow: 0px 2px 0px 0px #e5e5e5;
}

.btn5:not(.xwrong):not(.xcorrect) > .show {
    border-color: #cfd1cf !important;
    border: 1px solid #e5e5e5;
    box-shadow: 0px 2px 0px 0px #e5e5e5;
}

.btn5.xwrong {
    border-radius: 12px;
    border: 1px solid #dd1313 !important;
    box-shadow: 0px 2px 0px 0px #dd1313 !important;
}

.btn5.xcorrect {
    border-radius: 12px;
    border: 1px solid #34b766 !important;
    box-shadow: 0px 2px 0px 0px #34b766 !important;
}

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

.question-advance-choose span {
    font-size: 24px !important;
}

/* Advance: FlipCouple */
.list-card-flip-couple {
    display: grid;
    grid-template-columns: repeat(var(--grid-size, 3), 1fr);
    gap: 8px;
    padding: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.list-card-flip-couple * {
    user-select: none;
}

.card-scene {
    perspective: 400px;
    aspect-ratio: 1;
}

.cardflip {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    cursor: pointer;
}

.cardflip.is-flipped {
    transform: rotateY(180deg);
}

.cardflip.is-remove {
    opacity: 0;
    transition: opacity 0.6s;
    pointer-events: none;
}

.card-face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    box-sizing: border-box;
    border-radius: 8px;
}

.card-front {
    background: #fff4b6;
    border: 1px solid #f8ca6add;
}

.card-back {
    background: white;
    border: 1px solid #f8ca6add;
    transform: rotateY(180deg);
}

/* Advance: ChooseCouple */
.list-card-choose-couple {
    display: grid;
    grid-template-columns: repeat(var(--grid-size, 3), 1fr);
    gap: 8px;
    padding: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.list-card-choose-couple * {
    user-select: none;
}

.cardChoose {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    cursor: pointer;
    border: solid 1px #f8ca6add;
}

.cardChoose.is-choosed {
    background-color: #fff4b6;
}

.cardChoose.is-remove {
    opacity: 0;
    transition: opacity 0.6s;
    pointer-events: none;
}

.disabled {
    pointer-events: none;
    opacity: 0.5;
}

/* ===================== FindWrong (static render) ============================ */
.type-find-wrong .limit {
    color: #08c;
}

.type-find-wrong .limit-up {
    color: #f70606;
    font-weight: 600;
}

.type-find-wrong .limit-warn {
    color: #ffc106;
}

.type-find-wrong .limit,
.type-find-wrong .limit-up,
.type-find-wrong .limit-warn {
    font-size: 0.76em;
    font-style: italic;
}

.ans-trigger .under-mark2,
.under-mark {
    background: #d6d5fb;
    border-bottom: 2px solid #3734e0 !important;
    padding: 0 5px;
    margin-right: 5px;
}

.select-text {
    cursor: pointer;
    position: relative;
}

.select-ans {
    display: grid;
    opacity: 0.8;
    position: absolute;
    right: 0;
    top: 36px;
    width: 100%;
}

/* ===================== FindWrong Mobile (static render) ============================ */
@media (max-width: 768px) {
    .type-find-wrong {
        margin: 0 0.5rem;
        padding: 0.25rem 0.5rem;
        border-radius: 0.5rem;
        background: #e4eaff;
        text-align: center;
        color: #5c5bff;
        font-size: 0.875rem;
        font-weight: 500;
        line-height: 1.375rem;
    }

    .type-find-wrong:has(.limit-up) {
        background: #ffeaea;
    }

    .select-option {
        min-width: 7rem;
        border: 2px solid #5c5bff;
    }

    .select-option.ocorrect {
        border: 2px solid #34b766 !important;
    }

    .select-option.owrong {
        border: 2px solid #dd1313 !important;
    }
}

/* ===================== TrueFalse (static render) ============================ */
#true-false .true-false-hint {
    color: #999;
}

#true-false .table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid #dee2e6;
}

#true-false .qiradio {
    -webkit-appearance: none;
    border: 1px solid #cacece;
    border-radius: 50px;
    pointer-events: none;
    background-color: #fafafa;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05),
        inset 0 -15px 10px -12px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    width: 30px;
    height: 30px;
    font-size: 18px;
    position: relative;
    top: 3px;
    color: #6950ec;
    font-weight: 700;
    justify-content: center;
    user-select: none;
}

.tf-row .qselect {
    align-items: center;
    display: flex;
    justify-content: center;
    cursor: pointer;
}

#true-false .qiradio:after {
    content: "";
    left: 50%;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
}

#true-false .xwrong.qiradio:before {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png);
    left: 12px;
    position: absolute;
    top: 0;
    z-index: 50;
}

#true-false .xcorrect.qiradio:before {
    content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png);
    left: 22px;
    position: absolute;
    top: -10px;
    z-index: 50;
}

/* ===================== TrueFalse Mobile (static render) ============================ */
@media (max-width: 768px) {
    #true-false {
        font-weight: 500;
    }

    #true-false .table {
        width: 100%;
    }

    #true-false .table tr {
        border: 1px solid var(--olm-text-light);
        border-radius: var(--olm-radius-md);
        padding: var(--olm-gap-md);
    }

    #true-false .table td {
        vertical-align: top;
    }

    #true-false .qiradio {
        font-weight: 600;
        user-select: none;
        border: 1px solid var(--olm-border-dark);
        border-radius: var(--olm-radius-md);
        padding: var(--olm-gap-sm) var(--olm-gap-lg);
        background-color: #f7f7f7;
    }

    .tf-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 20px;
        box-shadow: var(--olm-shadow-md);
    }

    .tf-row:has(.xcorrect) {
        box-shadow: var(--olm-shadow-correct);
        border-color: var(--olm-correct);
        background: var(--olm-correct-light);
    }

    .tf-row:has(.xwrong) {
        background: var(--olm-wrong-light);
        box-shadow: var(--olm-shadow-wrong);
        border-color: var(--olm-wrong);
    }

    .tf-box {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 4px;
    }

    #true-false .qselect {
        gap: 10px;
    }

    #true-false .selected {
        color: var(--olm-primary);
        border: 1px solid var(--olm-primary);
        box-shadow: var(--olm-shadow-primary);
    }

    #true-false .result,
    #true-false .xcorrect {
        color: var(--olm-correct);
        border: 1px solid var(--olm-correct);
        box-shadow: var(--olm-shadow-correct);
    }

    #true-false .xwrong {
        color: var(--olm-wrong);
        border: 1px solid var(--olm-wrong);
        box-shadow: var(--olm-shadow-wrong);
    }
}

/* ===================== FlashCard (static render) ============================ */
.cardwrap {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flashcard {
    user-select: none;
    width: 100%;
    max-width: 560px;
    aspect-ratio: 16/9;
    perspective: 1000px;
    cursor: pointer;
    transition: transform 0.6s;
    overflow: hidden;
    border-radius: 0.75rem;
    position: relative;
}

.fcard.flipped .card-front {
    transform: rotateY(180deg);
}

.fcard.flipped .card-back {
    transform: rotateY(0);
}

.fcard .card-back,
.fcard .card-front {
    background-color: #ffede4;
    color: #1a1a1a;
    transition: transform 0.6s;
}

.flashcard .card-front,
.flashcard .card-back {
    width: 100%;
    height: 100%;
    position: absolute;
    backface-visibility: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    overflow: auto;
}

.fcard .card-back {
    transform: rotateY(180deg);
}

/* ===================== FlashCard Mobile (static render) ============================ */
@media (max-width: 768px) {
    .flashcard {
        width: 100%;
        height: 12.375rem;
        box-shadow: 0px 4px 12px -4px rgba(0, 0, 0, 0.08),
            0px 12px 24px -12px rgba(0, 0, 0, 0.08);
    }
}

/* ===================== GroupList (static render) ============================ */
.list-select-item {
    padding: 0;
    margin: 0;
    min-height: 35px;
    cursor: pointer !important;
}

.mr-2 {
    margin-right: 5px;
}

.drag-item {
    border-top-right-radius: 4px;
    cursor: pointer;
    height: fit-content;
}

.grid-five-item {
    display: grid;
    gap: 5px;
    grid-template-columns: repeat(5, 1fr);
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

.group-item {
    display: block;
    list-style: none;
    padding: 5px !important;
    width: fit-content;
}

ul.ui-droppable > li {
    margin-bottom: 0.3rem;
    margin-left: 0 !important;
}

.group-item > li,
.item-in > li {
    margin-right: 10px;
}

.ui-corner-tr {
    border-top-right-radius: 4px;
}

.ui-widget-content {
    border: 1px solid #dddddd;
    background: #eeeeee;
    color: #333333;
}

.a-item {
    display: inline-block;
    float: left;
    padding: 4px;
    position: relative;
}

.group-holder {
    display: flex;
}

.drop-into {
    user-select: none;
    background: #d9daff;
    border: 1px solid #c3c5f9;
    border-radius: 3px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
}

.drop-into h2 {
    color: #5f61c7;
    font-size: 1.31em;
    text-align: center;
}

.drop-into .item-in {
    background-color: #fff;
    box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.1);
    display: flow-root;
    margin: 8px 10px 10px;
    min-height: 168px;
    padding: 5px;
    cursor: pointer;
}

.active {
    background-color: rgb(255, 226, 138) !important;
    cursor: pointer !important;
}

/* ===================== GroupList Mobile (static render) ============================ */
@media (max-width: 768px) {
    .group-title-container {
        border-radius: var(--olm-radius-md);
        border: 1px solid var(--olm-primary);
        background: var(--olm-primary);
        width: 100%;
        min-height: 2rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .group-list {
        display: flex;
        gap: var(--olm-gap-sm);
        overflow: auto;
        user-select: none;
    }

    .group-list h4 {
        margin: 0;
        color: var(--olm-white);
        text-align: center;
        font-size: 1rem;
        font-style: normal;
        font-weight: 700;
        line-height: 1.5rem;
    }

    .text-center {
        text-align: center;
    }

    .drag-item {
        cursor: pointer;
        border-radius: var(--olm-radius-md);
        background: var(--olm-white);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--olm-gap-sm);
        align-self: stretch;
        padding: var(--olm-gap-sm) var(--olm-gap-lg) !important;
        margin-bottom: var(--olm-gap-sm);
    }

    .drag-item .custom-audio-player {
        scale: 0.7;
        color: white;
        margin: 0;
    }

    .drag-item .item-text {
        margin: 0;
    }

    .group-item {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        list-style: none;
        min-width: 14.3rem;
        min-height: 18rem;
        width: 14.3rem;
        height: 18rem;
        border-radius: var(--olm-radius-md);
        border: 2px solid var(--olm-primary);
        background: var(--olm-primary);
    }

    .drop-into .item-in {
        min-height: 100px !important;
    }
}

/* ===================== SelectText (static render) ============================ */
#selecttext .select-option {
    color: #08c;
    font-size: 1.2em;
    height: auto;
    margin: 0;
    padding: 0;
    min-width: 40px;
    background-repeat: no-repeat;
    background-position: right 5px center;
    background-size: 16px 16px;
    padding-right: 12px;
    text-align: center;
}

#selecttext option {
    font-size: 18px;
}

#selecttext .xwrong.select-option {
    background-image: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png);
}

#selecttext .xcorrect.select-option {
    background-image: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png);
}

/* ===================== SelectText Mobile (static render) ============================ */
@media (max-width: 768px) {
    #selecttext p {
        padding: 0 1rem;
    }

    #selecttext span {
        font-size: 1rem;
    }

    .select-option .select-option-item {
        display: flex;
        color: #000;
    }

    .select-option::after {
        content: "";
        display: block;
        width: 1.5rem;
        height: 1.5rem;
        background-image: url(olm_images/renderquestion/icons/chevron-down.svg);
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: center;
        position: absolute;
        right: 0.5rem;
        top: 50%;
        transform: translateY(-50%);
    }

    .xwrong.select-option:before {
        content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/wrong.png);
        right: 0;
        position: absolute;
        top: -10%;
        z-index: 100;
    }

    .xcorrect.select-option:before {
        content: url(https://rs.olm.vn/vendor/lib_question/qlib/icons/correct.png);
        right: 0;
        position: absolute;
        top: -10%;
        z-index: 100;
    }
}

/* ===================== UnderLine (static render) ============================ */
.under-line {
    border-bottom: 2px solid #aaa;
    cursor: pointer;
    position: relative;
}

.under-line.under-mark {
    background: #d6d5fb;
    border-bottom: 2px solid #3734e0 !important;
    padding: 0 5px;
}

.under-correct {
    border-bottom: 2px solid #34b766 !important;
}

.under-wrong {
    border-bottom: 2px solid #e03434 !important;
}

/* ===================== UnderLine Mobile (static render) ============================ */
@media (max-width: 768px) {
    .under-line {
        display: inline-block;
        margin-right: 0.3rem;
        border-bottom: 3px solid #d1d1d1;
        cursor: pointer;
        position: relative;
    }

    .under-line span > span {
        font-weight: 600;
    }

    .under-line.under-mark {
        border-bottom: 3px solid #5c5bff !important;
    }

    .under-correct {
        border-bottom: 3px solid #34b766 !important;
    }

    .under-wrong {
        border-bottom: 3px solid #e03434 !important;
    }
}

/* ===================== UnderList (static render) ============================ */
#under-list .under-mark {
    border-bottom: 2px solid #3734e0 !important;
    padding: 0 5px;
    margin-right: 5px;
}

#under-list .select-text {
    cursor: pointer;
    position: relative;
}

#under-list .under-correct {
    border-bottom: 2px solid #34b766 !important;
    padding: 0 5px;
    margin-right: 5px;
}

#under-list .under-wrong {
    border-bottom: 2px solid #e03434 !important;
    padding: 0 5px;
    margin-right: 5px;
}

/* ===================== UnderList Mobile (static render) ============================ */
@media (max-width: 768px) {
    .question-under-list {
        margin-bottom: 0.5rem;
    }

    #under-list span > span {
        font-weight: 600;
    }

    #under-list .under-mark {
        border-bottom: 3px solid #5c5bff !important;
    }

    #under-list .select-text {
        cursor: pointer;
        display: inline-block;
        position: relative;
        margin-right: 0.3rem;
    }

    #under-list .under-correct {
        border-bottom: 3px solid #34b766 !important;
    }

    #under-list .under-wrong {
        border-bottom: 3px solid #dd1313 !important;
    }
}

/* ===================== TypeMix (static render) ============================ */
.separate-quiz {
    padding-top: 5px;
    border-top: 2px dashed #dee2e6;
    margin-top: 10px;
}

.one-quiz-item {
    margin: 5px 0px;
}

.title-itm {
    margin: 10px 0px;
    padding-top: 10px;
    font-weight: 600;
    color: #1e1ef8;
}

.question-result-tag {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    pointer-events: none;
}

.question-result-tag .size-desktop {
    width: 100px;
    height: 32px;
}

.question-result-tag .size-mobile {
    width: 77px;
    height: 24px;
}

.reading-layout {
    display: flex;
    height: 100%;
    max-height: 100vh;
    gap: 0;
    overflow: hidden;
}

.reading-layout .left-side {
    width: fit-content;
    max-width: 60%;
    padding: 10px;
    border-right: 2px solid #dee2e6;
    overflow-y: auto;
    overflow-x: hidden;
}

/* ===================== Paragraph (static render) ============================ */
.theorycal {
    background: #11af33;
    border-radius: 30px 0;
    color: #fff;
    padding: 1px 15px;
    float: right;
    width: max-content;
}

textarea.typing-para {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg width='1' height='30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='%235f00bf' fill='none' d='M.5.5h9.357'/%3E%3C/svg%3E");
    background-position: 0 -2.5px;
    background-repeat: repeat;
    color: #5f00bf;
    overflow: hidden;
}

.text-para {
    border: none;
    box-shadow: none;
    box-sizing: border-box;
    font-family: Muli, sans-serif;
    font-size: 0.98em;
    line-height: 30px;
    resize: none;
    width: 100%;
}

textarea:focus {
    outline: none;
}

textarea:placeholder-shown {
    color: #5f00bf;
}

.olm-draw-toolbar {
    position: fixed;
    bottom: 10px;
    left: 30px;
    background: rgba(170, 187, 204, 0.8666666667);
    border-radius: 10px;
    padding: 10px 10px;
    z-index: 9999;
    display: flex;
    align-items: center;
}

.scolor {
    display: flex;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    height: 24px !important;
    position: relative !important;
    width: 24px !important;
    vertical-align: top !important;
    z-index: 2 !important;
    display: inline-block !important;
}

.sitem {
    display: flex;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    height: 24px !important;
    margin-right: 12px !important;
    position: relative !important;
    width: 24px !important;
    vertical-align: top !important;
    z-index: 2 !important;
}

.sitem.red {
    background: red;
}

.sitem.blue {
    background: #00f;
}

.sitem.green {
    background: green;
}

.sitem.yellow {
    background: #ff0;
}

.sitem.cursor {
    border: solid 1px #252e32;
}

.sitem.delete {
    border: solid 1px #252e32;
}

/* ===================== Correct Answer Section (static render) ============================ */
/* LEGACY / ngoài phạm vi sync — đáp án đúng sau chấm; không thêm rule mới vào testLit */
.correct-answer-section {
    margin-top: var(--olm-gap-lg);
    padding-top: var(--olm-gap-lg);
    border-top: 1px dashed #dee2e6;
}

.correct-answer-section h3 {
    color: var(--olm-correct);
}

/* ===================== Guide/Explanation Section (static render) ============================ */
.guide-container {
    margin-top: var(--olm-gap-lg);
    padding: var(--olm-gap-lg);
    background: var(--olm-bg-muted);
    border-radius: var(--olm-radius-sm);
}

.guide-content {
    transition: height 0.3s ease;
}

.header-guide {
    display: flex;
    align-items: center;
    gap: var(--olm-gap-sm);
    cursor: pointer;
}

.header-reading-in {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--olm-gap-md) var(--olm-gap-lg);
    border-bottom: 1px solid var(--olm-border);
}