/* Base container */
.quiz-ai-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Make all quiz elements stable without transitions that can cause spring effects */
.quiz-ai-container * {
    transition: none !important;
    transform: none !important;
    animation: none !important;
}

/* Question styling */
.quiz-question {
    background: #ffffff;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.quiz-question h3 {
    color: #334155;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

/* Options container */
.quiz-options {
    margin: 15px 0;
}

/* Individual option styling */
.quiz-option {
    position: relative;
    padding: 15px;
    margin: 0 0 10px 0;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: #ffffff;
    cursor: pointer;
    user-select: none;
}

.quiz-option label {
    display: flex;
    align-items: center;
    cursor: pointer;
    margin: 0;
    padding: 0;
    width: 100%;
}

.quiz-option input[type="radio"] {
    margin-right: 10px;
}

.option-text {
    font-size: 1rem;
    color: #1e293b;
}

/* Hover state */
.quiz-option:hover:not(.correct):not(.incorrect) {
    background: #f8fafc;
    border-color: #94a3b8;
}

/* Selected state */
.quiz-option.selected {
    background: #e3f2fd;
    border-color: #90caf9;
}

/* Correct state */
.quiz-option.correct,
.quiz-option[data-correct="true"].selected {
    background-color: #d4edda !important;
    border-color: #c3e6cb !important;
    color: #155724 !important;
}

/* Incorrect state */
.quiz-option.incorrect,
.quiz-option[data-correct="false"].selected {
    background-color: #f8d7da !important;
    border-color: #f5c6cb !important;
    color: #721c24 !important;
}

/* Navigation */
.quiz-navigation {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
    padding: 15px;
    background: #f8fafc;
    border-radius: 8px;
    justify-content: center;
}

.nav-item {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #e2e8f0;
    border-radius: 50%;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: none;
}

.nav-item:hover:not(.correct):not(.incorrect) {
    background: #e2e8f0;
}

.nav-item.active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

/* Navigation item states */
.nav-item.correct {
    background-color: #4CAF50 !important;
    border-color: #4CAF50 !important;
    color: white !important;
}

.nav-item.incorrect {
    background-color: #F44336 !important;
    border-color: #F44336 !important;
    color: white !important;
}

/* Bottom navigation */
.quiz-navigation-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding: 15px;
    background: #f8fafc;
    border-radius: 8px;
}

.quiz-nav-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    background: #3b82f6;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quiz-nav-btn:hover:not(:disabled) {
    background: #2563eb;
}

.quiz-nav-btn:disabled {
    background: #e2e8f0;
    cursor: not-allowed;
}

.question-counter {
    font-size: 14px;
    color: #64748b;
}

/* Key points */
.question-key-point {
    margin-top: 20px;
    padding: 15px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
}

.question-key-point h4 {
    margin: 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.key-point-content {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #e2e8f0;
}

/* Responsive design */
@media (max-width: 768px) {
    .quiz-ai-container {
        padding: 15px;
    }
    
    .quiz-question {
        padding: 15px;
    }
    
    .quiz-navigation-buttons {
        padding: 10px;
    }
}

/* Question styling */
.quiz-question h3 {
    color: #334155;
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 24px;
    font-weight: 600;
}

/* Option styling with maximum specificity */
body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option {
    margin-bottom: 8px !important;
}

body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option .option-content {
    display: flex !important;
    align-items: flex-start !important;
    gap: 12px !important;
    padding: 16px 20px !important;
    background: #ffffff !important;
    border: 2px solid #e2e8f0 !important;
    border-radius: 8px !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05) !important;
}

body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option .option-letter {
    min-width: 24px !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    color: #000000 !important;
    opacity: 1 !important;
}

body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option .option-text {
    flex: 1 !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    line-height: 1.6 !important;
    color: #000000 !important;
    opacity: 1 !important;
    text-shadow: none !important;
    -webkit-font-smoothing: antialiased !important;
    -moz-osx-font-smoothing: grayscale !important;
}

/* Target the label text directly with maximum specificity */
body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option .option-content label {
    font-size: 15px !important;
    font-weight: 600 !important;
    line-height: 1.6 !important;
    color: #000000 !important;
    opacity: 1 !important;
    text-shadow: none !important;
    -webkit-font-smoothing: antialiased !important;
    -moz-osx-font-smoothing: grayscale !important;
}

/* Correct/Incorrect states for label */
body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option.correct-answer .option-content label {
    color: #166534 !important;
    font-weight: 700 !important;
}

body .masterstudy-course-player-content .masterstudy-course-player-lesson .quiz-ai-container .quiz-option.incorrect-answer .option-content label {
    color: #991b1b !important;
    font-weight: 700 !important;
}

/* Navigation buttons */
.quiz-navigation button,
.toggle-explanations {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: #475569;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quiz-navigation button:hover:not(:disabled),
.toggle-explanations:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
    color: #334155;
}

.quiz-navigation button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Add emphasis to explanation labels */
.explanation-label {
    font-weight: 600;
    color: #475569;
    display: block;
    margin-bottom: 4px;
}

/* Key points styling */
.key-points {
    background: #f8fafc;
    border-radius: 8px;
    padding: 20px;
}

.key-point-item {
    margin: 12px 0;
    padding: 16px 16px 16px 32px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    position: relative;
}

.key-point-item::before {
    content: "•";
    position: absolute;
    left: 16px;
    color: #3b82f6;
    font-weight: bold;
}

/* Mobile improvements */
@media (max-width: 768px) {
    .quiz-ai-container {
        margin: 1em;
        padding: 20px;
    }

    body .quiz-ai-container .quiz-option .option-content {
        padding: 12px 16px !important;
    }
}

/* Update quiz controls styling */
.quiz-controls {
    margin: 24px 0;
    padding: 16px;
    background: #f8fafc;
    border-radius: 8px;
    text-align: left;
    border: 1px solid #e2e8f0;
}

.show-all-explanations {
    padding: 10px 20px;
    background: #ffffff;
    color: #475569;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.show-all-explanations:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
    color: #334155;
}

/* Question image styles */
.quiz-question-image {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

@media screen and (min-width: 768px) {
    .quiz-question-image {
        max-width: 600px;
    }
}

/* Update the main navigation panel styles */
.quiz-navigation-panel {
    position: relative;
    width: 100%;
    margin: 20px 0;
    background: #fff;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.quiz-navigation-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: row;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

/* Question styling */
.quiz-ai-question {
    margin-bottom: 2em;
}

/* Adding CSS for pagination spacing */
.quiz-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

/* Submit button */
.quiz-submit {
    display: block;
    width: 100%;
    max-width: 300px;
    margin: 20px auto;
    padding: 12px 20px;
    background-color: #3b82f6;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    text-align: center;
}

/* Quiz completion message */
.quiz-completion-message {
    margin-top: 30px;
    padding: 20px;
    background-color: #f0f7ff;
    border: 1px solid #cce3ff;
    border-radius: 8px;
    text-align: center;
}

.quiz-completion-message h3 {
    color: #1e40af;
    margin-bottom: 15px;
}

.quiz-completion-message p {
    font-size: 18px;
    margin-bottom: 10px;
}

/* Explanation styling */
.explanation {
    display: none;
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
    font-style: italic;
    color: #666;
}

.quiz-option.correct .explanation {
    background: #f0fdf4;
    border-left: 4px solid #166534;
    color: #166534;
}

.quiz-option.incorrect .explanation {
    background: #fef2f2;
    border-left: 4px solid #991b1b;
    color: #991b1b;
}