/* ============================================
   INTERACTIVE LEARNING - Stylesheet
   ============================================ */

/* Page Header */
.interactive-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding-bottom: var(--space-2xl);
}

.interactive-header .page-title {
    color: var(--color-white);
}

.interactive-header .page-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.page-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(201, 150, 59, 0.2);
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: var(--space-md);
}

/* Audience Toggle */
.audience-toggle-section {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) 0;
    position: sticky;
    top: var(--header-height);
    z-index: 100;
}

.audience-toggle {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.audience-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.25rem;
    background: var(--color-light);
    border: 2px solid transparent;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.audience-btn svg {
    width: 18px;
    height: 18px;
}

.audience-btn:hover {
    background: var(--color-white);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.audience-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

/* Filter Bar */
.filter-bar {
    background: var(--color-white);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.filter-groups {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.filter-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
}

.filter-list {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.filter-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* Lessons Section */
.lessons-section {
    padding: var(--space-2xl) 0;
    min-height: 400px;
}

.lessons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
}

.lessons-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-3xl);
    color: var(--color-text-light);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    margin: 0 auto var(--space-md);
    animation: spin 0.8s linear infinite;
}

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

/* Empty State */
.empty-state {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-3xl);
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.empty-state h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.empty-state p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

/* Lesson Card */
.lesson-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.lesson-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.lesson-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--space-md);
    background: var(--color-light);
    border-bottom: 1px solid var(--color-border);
}

.lesson-type-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border: 1px solid var(--color-border);
}

.lesson-type-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.lesson-type-icon[data-type="quiz"] svg {
    color: #8b5cf6;
}

.lesson-type-icon[data-type="simulation"] svg {
    color: #06b6d4;
}

.lesson-badges {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    align-items: flex-end;
}

.lesson-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 50px;
}

.audience-badge {
    background: rgba(45, 49, 66, 0.1);
    color: var(--color-primary);
}

.difficulty-badge {
    background: color-mix(in srgb, var(--difficulty-color) 15%, transparent);
    color: var(--difficulty-color);
}

.lesson-card-body {
    flex: 1;
    padding: var(--space-md);
}

.lesson-type-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.lesson-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.lesson-description {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.5;
    margin: 0;
}

.lesson-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border-top: 1px solid var(--color-border);
    background: var(--color-lighter);
}

.lesson-meta {
    display: flex;
    gap: var(--space-md);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.meta-item svg {
    color: var(--color-text-muted);
}

.start-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    transition: var(--transition);
}

.lesson-card:hover .start-btn {
    gap: var(--space-sm);
}

/* Stats Section */
.stats-section {
    padding: var(--space-2xl) 0;
    background: var(--color-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: rgba(201, 150, 59, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

/* CTA Section */
.cta-section {
    padding: var(--space-2xl) 0;
}

.cta-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    color: var(--color-white);
}

.cta-content h2 {
    color: var(--color-white);
    margin-bottom: var(--space-xs);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    max-width: 500px;
}

/* ============================================
   INTERACTIVE LESSON STYLES
   ============================================ */

/* Lesson Container */
.lesson-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-md);
}

/* Progress Bar */
.lesson-progress {
    position: sticky;
    top: var(--header-height);
    background: var(--color-white);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
    z-index: 50;
}

.progress-bar {
    height: 8px;
    background: var(--color-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* Quiz Styles */
.quiz-container {
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.quiz-header {
    padding: var(--space-lg);
    background: var(--color-light);
    border-bottom: 1px solid var(--color-border);
}

.quiz-header h2 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.quiz-header p {
    color: var(--color-text-light);
    margin: 0;
}

.quiz-body {
    padding: var(--space-lg);
}

.question-card {
    display: none;
}

.question-card.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.question-number {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.question-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    line-height: 1.4;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.option-btn {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    width: 100%;
    padding: var(--space-md);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-align: left;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.option-btn:hover:not(:disabled) {
    border-color: var(--color-accent);
    background: rgba(201, 150, 59, 0.05);
}

.option-btn.selected {
    border-color: var(--color-accent);
    background: rgba(201, 150, 59, 0.1);
}

.option-btn.correct {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
}

.option-btn.incorrect {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.option-btn:disabled {
    cursor: not-allowed;
}

.option-marker {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.option-btn.selected .option-marker {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: var(--color-white);
}

.option-btn.correct .option-marker {
    border-color: #22c55e;
    background: #22c55e;
    color: var(--color-white);
}

.option-btn.incorrect .option-marker {
    border-color: #ef4444;
    background: #ef4444;
    color: var(--color-white);
}

.option-text {
    flex: 1;
    line-height: 1.5;
}

/* Explanation Box */
.explanation-box {
    display: none;
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-light);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-accent);
}

.explanation-box.visible {
    display: block;
    animation: fadeIn 0.3s ease;
}

.explanation-box h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.explanation-box p {
    margin: 0;
    color: var(--color-text);
    line-height: 1.6;
}

/* Quiz Navigation */
.quiz-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.quiz-nav .btn {
    min-width: 120px;
}

.quiz-nav .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Quiz Results */
.quiz-results {
    text-align: center;
    padding: var(--space-2xl);
}

.results-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.results-icon.excellent {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.results-icon.good {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.results-icon.needs-work {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.results-icon svg {
    width: 40px;
    height: 40px;
}

.results-score {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.results-message {
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}

.results-breakdown {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

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

.breakdown-number {
    font-size: 1.5rem;
    font-weight: 600;
}

.breakdown-number.correct {
    color: #22c55e;
}

.breakdown-number.incorrect {
    color: #ef4444;
}

.breakdown-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.results-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Simulation Styles */
.simulation-container {
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.simulation-header {
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
}

.simulation-header h2 {
    color: var(--color-white);
    margin-bottom: var(--space-xs);
}

.simulation-header p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.simulation-body {
    padding: var(--space-lg);
}

.scenario-card {
    display: none;
    padding: var(--space-lg);
    background: var(--color-light);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-lg);
}

.scenario-card.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.scenario-context {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.scenario-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--color-text);
}

.decision-prompt {
    font-weight: 600;
    color: var(--color-primary);
    margin: var(--space-lg) 0 var(--space-md);
}

.decision-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.decision-btn {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    width: 100%;
    padding: var(--space-md);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-align: left;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.decision-btn:hover {
    border-color: var(--color-accent);
    background: rgba(201, 150, 59, 0.05);
}

.decision-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--color-light);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.decision-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.decision-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.decision-content p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin: 0;
}

/* Feedback Panel */
.feedback-panel {
    display: none;
    padding: var(--space-lg);
    border-radius: var(--radius-sm);
    margin-top: var(--space-lg);
}

.feedback-panel.visible {
    display: block;
    animation: fadeIn 0.3s ease;
}

.feedback-panel.positive {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.feedback-panel.negative {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.feedback-panel.neutral {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.feedback-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.feedback-header svg {
    width: 24px;
    height: 24px;
}

.feedback-panel.positive .feedback-header svg {
    color: #22c55e;
}

.feedback-panel.negative .feedback-header svg {
    color: #ef4444;
}

.feedback-panel.neutral .feedback-header svg {
    color: #f59e0b;
}

.feedback-header h4 {
    font-size: 1rem;
    margin: 0;
}

.feedback-text {
    color: var(--color-text);
    line-height: 1.6;
    margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .audience-toggle {
        flex-direction: column;
        align-items: stretch;
    }
    
    .audience-btn {
        justify-content: center;
    }
    
    .filter-groups {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .lessons-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-card {
        flex-direction: column;
        text-align: center;
    }
    
    .quiz-nav {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .quiz-nav .btn {
        width: 100%;
    }
    
    .results-breakdown {
        flex-direction: column;
        gap: var(--space-md);
    }
}