/**
 * Hệ thống giao diện của AIEdu Platform (Phiên bản v1.1.0)
 * Thiết kế trẻ trung, hiện đại, tương phản cao, dễ nhìn dễ đọc trên mọi thiết bị.
 */

:root {
    --aiedu-primary: #3b82f6; /* Xanh dương hiện đại, trẻ trung */
    --aiedu-primary-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --aiedu-primary-hover: #1d4ed8;
    --aiedu-success: #10b981; /* Xanh lá tươi tắn */
    --aiedu-warning: #f59e0b; /* Vàng cam ấm */
    --aiedu-danger: #ef4444;  /* Đỏ tươi */
    --aiedu-dark: #111827;    /* Chữ chính tương phản cực tốt */
    --aiedu-light: #f9fafb;
    --aiedu-text: #1f2937;    /* Chữ phụ, rất sắc nét */
    --aiedu-text-light: #4b5563;
    --aiedu-bg-card: #ffffff; /* Nền card đặc hoàn toàn để chống chói/mờ */
    --aiedu-border: #e5e7eb;
    --aiedu-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.1), 0 8px 10px -6px rgba(59, 130, 246, 0.1);
    --aiedu-radius: 16px;
}

/* Khung bọc module */
.aiedu-container.aiedu-glass {
    background: var(--aiedu-bg-card);
    border: 1px solid var(--aiedu-border);
    border-radius: var(--aiedu-radius);
    padding: 28px;
    margin-bottom: 28px;
    box-shadow: var(--aiedu-shadow);
    color: var(--aiedu-dark);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    box-sizing: border-box;
}

/* Header tiêu đề của module */




.aiedu-icon {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 2.2);
    line-height: 1;
}





.aiedu-badge {
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.8);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.aiedu-badge-rag {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

/* Phần tử Form và nhập liệu */
.aiedu-form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aiedu-form-group label {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95);
    font-weight: 700;
    color: var(--aiedu-dark);
}

.aiedu-input, .aiedu-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #cbd5e1;
    border-radius: 10px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.98);
    color: #0f172a;
    background: #ffffff;
    box-sizing: border-box;
    transition: all 0.2s ease;
    font-weight: 500;
    line-height: 1.5;
}

.aiedu-select, select.aiedu-select, .aiedu-container select {
    width: 100%;
    padding: 10px 38px 10px 14px !important;
    border: 2px solid #cbd5e1 !important;
    border-radius: 10px !important;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95) !important;
    font-weight: 600 !important;
    color: #0f172a !important;
    background-color: #ffffff !important;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e") !important;
    background-repeat: no-repeat !important;
    background-position: right 12px center !important;
    background-size: 16px 16px !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    box-sizing: border-box !important;
    transition: all 0.2s ease;
    height: auto !important;
    min-height: 46px !important;
    line-height: 1.4 !important;
    vertical-align: middle;
}

.aiedu-select option, select.aiedu-select option, .aiedu-container select option {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95) !important;
    font-weight: 500 !important;
    color: #0f172a !important;
    background-color: #ffffff !important;
    padding: 10px 14px !important;
    line-height: 1.5 !important;
    min-height: 36px;
}

.aiedu-input:focus, .aiedu-select:focus, select.aiedu-select:focus, .aiedu-textarea:focus {
    border-color: var(--aiedu-primary) !important;
    background: #ffffff !important;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15) !important;
    outline: none !important;
}

.aiedu-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 600px) {
    .aiedu-grid-2 {
        grid-template-columns: 1fr;
    }
}

/* Nút bấm hiện đại trẻ trung */
.aiedu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1);
    font-weight: 700;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.aiedu-btn-primary {
    background: var(--aiedu-primary-gradient);
    color: #fff;
}

.aiedu-btn-primary:hover {
    background: var(--aiedu-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.3);
}

.aiedu-btn-secondary {
    background: #f3f4f6;
    color: var(--aiedu-dark);
    border: 2px solid #e5e7eb;
}

.aiedu-btn-secondary:hover {
    background: #e5e7eb;
    transform: translateY(-2px);
}

.aiedu-btn-small {
    padding: 8px 16px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.85);
}

.aiedu-btn-export {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #fff;
}

.aiedu-btn-export:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.3);
}

/* Module 1: Chatbox */
.aiedu-chat-messages {
    height: 380px;
    overflow-y: auto;
    border: 2px solid #f3f4f6;
    border-radius: 12px;
    background: #f9fafb;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.aiedu-message {
    display: flex;
    flex-direction: column;
    max-width: 75%;
}

.aiedu-message.aiedu-msg-user {
    align-self: flex-end;
}

.aiedu-message.aiedu-msg-assistant {
    align-self: stretch;
    max-width: 100% !important;
    width: 100%;
}

.aiedu-msg-bubble {
    padding: 14px 18px;
    border-radius: 16px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.3);
    line-height: 1.6;
    word-break: break-word;
    font-weight: 500;
}

.aiedu-msg-user .aiedu-msg-bubble {
    background: var(--aiedu-primary-gradient);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.aiedu-msg-assistant .aiedu-msg-bubble {
    background: #fff;
    color: var(--aiedu-dark);
    border-bottom-left-radius: 4px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1.5px solid #f3f4f6;
}

.aiedu-msg-system .aiedu-msg-bubble {
    background: #eef2f6;
    color: #4b5563;
    text-align: center;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.9);
    border-radius: 9999px;
    padding: 8px 16px;
}

.aiedu-chat-form {
    display: flex;
    gap: 12px;
}

.aiedu-chat-form input {
    flex-grow: 1;
    padding: 14px 18px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1);
    background: #f9fafb;
}

.aiedu-chat-form button {
    padding: 0 28px;
    background: var(--aiedu-primary-gradient);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.aiedu-chat-form button:hover {
    transform: translateY(-1px);
}

/* Trích dẫn tài liệu */
.aiedu-citations {
    margin-top: 10px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.8);
    color: #2563eb;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.aiedu-citation-tag {
    background: #eff6ff;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 600;
    border: 1px solid #dbeafe;
}

/* Định dạng Markdown nội dung trả về (Căn đều Justify 100%) */
.aiedu-markdown,
.result-content.markdown-body,
.markdown-body,
.aiedu-review-content,
.aiedu-situation-content,
.aiedu-essay-result {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.3);
    text-align: justify !important;
    text-justify: inter-word !important;
    line-height: 1.68 !important;
}
.aiedu-markdown p,
.result-content.markdown-body p,
.markdown-body p,
.aiedu-review-content p,
.aiedu-situation-content p {
    margin: 0 0 12px 0;
    text-align: justify !important;
    text-justify: inter-word !important;
    line-height: 1.68 !important;
}
.aiedu-markdown p:last-child,
.result-content.markdown-body p:last-child,
.markdown-body p:last-child {
    margin-bottom: 0;
}
.aiedu-markdown ul, .aiedu-markdown ol,
.result-content.markdown-body ul, .result-content.markdown-body ol,
.markdown-body ul, .markdown-body ol {
    margin: 0 0 12px 0;
    padding-left: 24px;
    text-align: justify !important;
    text-justify: inter-word !important;
}
.aiedu-markdown li,
.result-content.markdown-body li,
.markdown-body li {
    margin-bottom: 6px;
    text-align: justify !important;
    text-justify: inter-word !important;
    line-height: 1.65 !important;
}

/* Thanh cuộn dọc Scrollbar mượt mà cho các khối nội dung dài */
.aiedu-examiner-results,
.aiedu-premium-result-area,
.result-content,
.aiedu-result-box {
    scrollbar-width: thin;
    scrollbar-color: #94a3b8 #f1f5f9;
}
.aiedu-examiner-results::-webkit-scrollbar,
.aiedu-premium-result-area::-webkit-scrollbar,
.result-content::-webkit-scrollbar,
.aiedu-result-box::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
.aiedu-examiner-results::-webkit-scrollbar-track,
.aiedu-premium-result-area::-webkit-scrollbar-track,
.result-content::-webkit-scrollbar-track,
.aiedu-result-box::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}
.aiedu-examiner-results::-webkit-scrollbar-thumb,
.aiedu-premium-result-area::-webkit-scrollbar-thumb,
.result-content::-webkit-scrollbar-thumb,
.aiedu-result-box::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
.aiedu-examiner-results::-webkit-scrollbar-thumb:hover,
.aiedu-premium-result-area::-webkit-scrollbar-thumb:hover,
.result-content::-webkit-scrollbar-thumb:hover,
.aiedu-result-box::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Spinner hoạt hình */
.aiedu-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 16px;
    text-align: center;
    color: var(--aiedu-text-light);
    font-weight: 600;
}

.aiedu-spinner {
    width: 36px;
    height: 36px;
    border: 4px solid rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    border-top-color: var(--aiedu-primary);
    animation: aiedu-spin 0.8s linear infinite;
}

@keyframes aiedu-spin {
    to { transform: rotate(360deg); }
}

/* Kết quả bài tập & chấm điểm */
.aiedu-card {
    background: #fff;
    border: 2px solid #f3f4f6;
    border-radius: 12px;
    padding: 24px;
    margin-top: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.aiedu-exam-grade-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #f3f4f6;
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.aiedu-exam-grade-header h4 {
    margin: 0;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.15);
    font-weight: 800;
    color: var(--aiedu-dark);
}

.aiedu-score-display {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 2.6);
    font-weight: 900;
    color: var(--aiedu-primary);
    background: #eff6ff;
    padding: 6px 20px;
    border-radius: 10px;
}

/* Câu hỏi tương tác */
.aiedu-quiz-question {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.8);
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--aiedu-dark);
    line-height: 1.5;
}

.aiedu-quiz-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.aiedu-quiz-opt-btn {
    text-align: left;
    padding: 14px 20px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    background: #fff;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.4);
    color: var(--aiedu-text);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 600;
}

.aiedu-quiz-opt-btn:hover {
    background: #f3f4f6;
    border-color: #cbd5e1;
    transform: translateX(4px);
}

.aiedu-quiz-opt-btn.opt-correct {
    background: #ecfdf5;
    border-color: var(--aiedu-success);
    color: #065f46;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.aiedu-quiz-opt-btn.opt-wrong {
    background: #fdf2f2;
    border-color: var(--aiedu-danger);
    color: #9b1c1c;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.15);
}

.aiedu-quiz-explanation {
    background: #eff6ff !important;
    border: 1px solid #bfdbfe !important;
    border-left: 5px solid #2563eb !important;
    padding: 16px 20px !important;
    border-radius: 0 12px 12px 0 !important;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.3);
    line-height: 1.6 !important;
    margin-top: 15px !important;
    color: #0f172a !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08) !important;
}

.aiedu-quiz-explanation strong,
.aiedu-quiz-explanation h5,
.aiedu-quiz-explanation .aiedu-exp-title {
    color: #1e3a8a !important;
    font-weight: 800 !important;
    display: block !important;
    margin-bottom: 6px !important;
}

.aiedu-quiz-explanation p {
    color: #0f172a !important;
    margin: 4px 0 !important;
    line-height: 1.6 !important;
}

.aiedu-quiz-explanation .aiedu-citation,
.aiedu-quiz-explanation p:last-child {
    color: #1d4ed8 !important;
    font-weight: 700 !important;
}

/* Giao diện Ghép Đôi (Matching) */
.aiedu-matching-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.aiedu-matching-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.aiedu-match-card {
    background: #fff;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    padding: 14px 18px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.4);
    color: var(--aiedu-text);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    font-weight: 600;
}

.aiedu-match-card:hover {
    border-color: var(--aiedu-primary);
    background: #f0f7ff;
}

.aiedu-match-card.item-selected {
    border-color: var(--aiedu-primary);
    background: #dbeafe;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.aiedu-match-card.item-paired {
    background: #f3f4f6;
    border-color: #d1d5db;
    color: #9ca3af;
    cursor: default;
    pointer-events: none;
}

/* Lộ trình học tập */
.aiedu-list-weak {
    list-style: none;
    padding: 0;
    margin: 0;
}

.aiedu-list-weak li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1.5px solid #f3f4f6;
}

.aiedu-weak-label {
    font-weight: 700;
    color: var(--aiedu-danger);
}

.aiedu-weak-info {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.9);
    color: var(--aiedu-text-light);
    font-weight: 600;
}

.aiedu-badge-level {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.9);
    font-weight: 800;
    display: inline-block;
}

.level-excellent { background: #d1fae5; color: #065f46; }
.level-good { background: #fef3c7; color: #92400e; }
.level-needs-improvement { background: #fee2e2; color: #991b1b; }
.level-unknown { background: #f3f4f6; color: #4b5563; }

.aiedu-recommendations-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.aiedu-rec-item {
    background: #fff;
    border: 2px solid #f3f4f6;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.01);
}

.aiedu-rec-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.aiedu-rec-meta h5 {
    margin: 0;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 1.05);
    font-weight: 800;
    color: var(--aiedu-dark);
}

.aiedu-match-score {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.8);
    color: var(--aiedu-success);
    font-weight: 700;
}

.aiedu-rec-excerpt {
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.92);
    color: var(--aiedu-text-light);
    line-height: 1.6;
    margin: 0 0 16px 0;
}

/* Bảng thống kê Portfolio */
.aiedu-table-wrapper {
    overflow-x: auto;
    margin-top: 20px;
}

.aiedu-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.aiedu-table th, .aiedu-table td {
    padding: 14px 18px;
    border-bottom: 1.5px solid #f3f4f6;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95);
}

.aiedu-table th {
    font-weight: 800;
    color: var(--aiedu-dark);
    background: #f9fafb;
}

.aiedu-score-badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 800;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.9);
}

.score-high { background: #d1fae5; color: #065f46; }
.score-mid { background: #fef3c7; color: #92400e; }
.score-low { background: #fee2e2; color: #991b1b; }

.aiedu-detail-row {
    background: #f9fafb;
}

.aiedu-detail-container {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.aiedu-detail-block {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.aiedu-detail-text {
    margin: 0;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95);
    background: #fff;
    padding: 12px 16px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    white-space: pre-wrap;
    line-height: 1.6;
}

.aiedu-citation-list {
    margin: 0;
    padding-left: 20px;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.9);
    color: #2563eb;
    line-height: 1.6;
}

/* Hộp cảnh báo màu sắc tương phản cao */
.aiedu-alert-danger {
    background: #fee2e2;
    border-left: 5px solid var(--aiedu-danger);
    color: #991b1b;
    padding: 16px;
    border-radius: 0 10px 10px 0;
    font-weight: 600;
    font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95);
}

.aiedu-alert-danger a {
    color: var(--aiedu-primary);
    font-weight: 800;
    text-decoration: underline;
}

/* ==========================================================================
   HỆ THỐNG RESPONSIVE TƯƠNG THÍCH ĐA MÀN HÌNH (PC, TABLET, MOBILE)
   ========================================================================== */

/* 1. Máy tính bảng (Tablet - Screen <= 1024px) */
@media (max-width: 1024px) {
    .aiedu-container.aiedu-glass {
        padding: 20px;
        border-radius: 12px;
    }
    
    
    
}

/* 2. Điện thoại di động (Mobile - Screen <= 768px) */
@media (max-width: 768px) {
    .aiedu-container.aiedu-glass {
        padding: 14px;
        margin-bottom: 16px;
        border-radius: 10px;
    }
    
    .aiedu-grid-2 {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    .aiedu-table th, .aiedu-table td {
        padding: 10px 12px;
        font-size: calc(var(--aiedu-base-font-size, 16px) * 0.88);
    }
    .aiedu-chat-messages {
        height: 320px;
        padding: 12px;
    }
    .aiedu-message {
        max-width: 90%;
    }
    .aiedu-chat-form {
        flex-direction: column;
        gap: 8px;
    }
    .aiedu-chat-form button {
        width: 100%;
        padding: 12px;
    }
    .aiedu-btn {
        width: 100%;
        box-sizing: border-box;
    }
    .aiedu-select, .aiedu-input, .aiedu-textarea {
        font-size: calc(var(--aiedu-base-font-size, 16px) * 0.95);
        padding: 10px 12px;
    }

    /* Tự động điều chỉnh kích thước câu hỏi & lựa chọn trắc nghiệm trên màn hình điện thoại/tablet (<= 768px): 15px - 16px in đậm */
    .aiedu-quiz-block {
        margin-bottom: 22px !important;
        padding-bottom: 16px !important;
    }
    .aiedu-quiz-block > div:first-child {
        font-size: 16px !important;
        font-weight: 800 !important;
        margin-bottom: 6px !important;
    }
    .aiedu-quiz-question {
        font-size: 16px !important;
        font-weight: 800 !important;
        margin-bottom: 14px !important;
        line-height: 1.5 !important;
    }
    .aiedu-quiz-options {
        gap: 8px !important;
        margin-bottom: 16px !important;
    }
    .aiedu-quiz-opt-btn {
        font-size: 15px !important;
        font-weight: 700 !important;
        padding: 11px 15px !important;
        line-height: 1.4 !important;
        border-radius: 8px !important;
    }
    .aiedu-quiz-explanation {
        font-size: 14.5px !important;
        padding: 12px 15px !important;
        line-height: 1.55 !important;
        margin-top: 12px !important;
    }
    .aiedu-quiz-submit-all-btn {
        font-size: 16px !important;
        font-weight: 800 !important;
        padding: 12px 16px !important;
    }
    .aiedu-quiz-final-score {
        font-size: 16px !important;
        padding: 10px !important;
    }

    /* Module Ghép Đôi Responsive */
    .aiedu-matching-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    .aiedu-match-card {
        font-size: 15px !important;
        font-weight: 700 !important;
        padding: 10px 14px !important;
    }
}

/* 3. Màn hình nhỏ (Small Mobile - Screen <= 480px) */
@media (max-width: 480px) {
    .aiedu-container.aiedu-glass {
        padding: 10px;
    }
    .aiedu-icon {
        font-size: calc(var(--aiedu-base-font-size, 16px) * 1.8);
    }
    .aiedu-table th, .aiedu-table td {
        padding: 8px 10px;
        font-size: calc(var(--aiedu-base-font-size, 16px) * 0.82);
    }

    /* Tinh chỉnh riêng cho màn hình điện thoại nhỏ (<= 480px): 14.5px - 15.5px in đậm */
    .aiedu-quiz-block > div:first-child {
        font-size: 15.5px !important;
        font-weight: 800 !important;
    }
    .aiedu-quiz-question {
        font-size: 15.5px !important;
        font-weight: 800 !important;
        margin-bottom: 12px !important;
        line-height: 1.45 !important;
    }
    .aiedu-quiz-opt-btn {
        font-size: 14.5px !important;
        font-weight: 700 !important;
        padding: 10px 13px !important;
    }
    .aiedu-quiz-explanation {
        font-size: 14px !important;
        padding: 11px 13px !important;
    }
}

/* ==========================================================================
   MODULE 10: GAMIFICATION & GAMES STYLES
   ========================================================================== */



/* Justify AI Responses Globally */
.aiedu-msg-assistant .aiedu-msg-bubble,
.aiedu-result-box,
.aiedu-essay-result-inline,
#aiedu-situation-result,
#aiedu-question-result,
#aiedu-essay-result,
.aiedu-ai-response-content {
    text-align: justify !important;
}

/* Fallback for Dynamic Menu Dropdown */
.menu-item-has-children:hover > .sub-menu { display: block !important; visibility: visible !important; opacity: 1 !important; }

/* Fix Login Labels Visibility */
.aiedu-login-container label { color: #ffffff !important; text-shadow: 1px 1px 3px rgba(0,0,0,0.8); }
.aiedu-login-title { color: #ffffff !important; text-shadow: 1px 1px 3px rgba(0,0,0,0.8); }

/* Password Wrapper & Show/Hide Toggle Button */
.aiedu-password-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
}
.aiedu-password-wrapper .aiedu-input-password {
    width: 100%;
    padding-right: 46px !important;
    box-sizing: border-box;
}
.aiedu-toggle-password {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent !important;
    border: none !important;
    padding: 6px !important;
    margin: 0 !important;
    cursor: pointer;
    color: #94a3b8;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 0.2s ease, background 0.2s ease;
    box-shadow: none !important;
    outline: none !important;
    z-index: 5;
}
.aiedu-toggle-password:hover {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.08) !important;
}
.aiedu-toggle-password svg {
    display: block;
    pointer-events: none;
}
.aiedu-forgot-link {
    transition: all 0.2s ease;
}
.aiedu-forgot-link:hover {
    text-decoration: underline !important;
    color: #93c5fd !important;
}
#aiedu-zalo-admin-btn:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}