/*
 * File: lex-components.css
 * Desc: Styles for Learning Experiences (LEx) components
 *       - LexUnitDetailModal: Three-tab modal for unit preview
 *       - LexContentPlayer: Full-screen learning interface
 *       - Block components: Video, text, quiz, interactive
 */

/* ========================================
   LEx Unit Detail Modal (Three-Tab)
   ======================================== */

lex-unit-detail-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

lex-unit-detail-modal.active {
    display: block;
}

/* Modal Backdrop */
.lex-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Modal Container */
.lex-modal-container {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Modal Header */
.lex-modal-header {
    display: flex;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid var(--gray-medium);
    gap: 16px;
}

.lex-modal-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
    flex: 1;
}

/* Locale Switcher in Header */
.lex-modal-header lex-locale-switcher {
    flex-shrink: 0;
}

.lex-modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-dark);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.lex-modal-close:hover {
    background: var(--gray-light);
    color: var(--text-dark);
}

/* Three-Tab Navigation */
.lex-modal-tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-medium);
    padding: 0 32px;
    background: var(--gray-light);
}

.lex-tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-dark);
    transition: var(--transition);
    position: relative;
    top: 2px;
}

.lex-tab-btn:hover {
    background: rgba(139, 126, 200, 0.1);
    color: var(--primary-purple);
}

.lex-tab-btn.active {
    color: var(--primary-purple);
    border-bottom-color: var(--primary-purple);
    background: var(--white);
}

.lex-tab-btn .tab-icon {
    font-size: 1.2rem;
}

.lex-tab-btn .tab-label {
    font-weight: 600;
}

/* Modal Body */
.lex-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

/* Tab Content */
.lex-tab-content {
    display: none;
}

.lex-tab-content.active {
    display: block;
    animation: fadeInContent 0.3s ease;
}

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

/* ========================================
   Overview Tab
   ======================================== */

.lex-overview-grid {
    display: grid;
    gap: 24px;
}

/* Hero Section */
.lex-hero-section {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.lex-hero-image {
    width: 100%;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-green));
}

.lex-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lex-placeholder-hero {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-icon {
    font-size: 5rem;
    opacity: 0.3;
}

.lex-badges {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
}

.lex-badge {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.lex-badge-free {
    background: var(--primary-green);
    color: var(--white);
}

.lex-badge-premium {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: var(--text-dark);
}

.lex-badge-format {
    background: var(--white);
    color: var(--primary-purple);
}

/* Learning Outcomes */
.lex-outcomes-section {
    background: var(--gray-light);
    padding: 20px;
    border-radius: var(--border-radius);
}

.lex-section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.lex-outcomes-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lex-outcomes-list li {
    padding: 10px 0;
    font-size: 1rem;
    color: var(--gray-dark);
    border-bottom: 1px solid var(--gray-medium);
}

.lex-outcomes-list li:last-child {
    border-bottom: none;
}

.lex-outcomes-list li.no-data {
    color: var(--text-secondary);
    font-style: italic;
}

/* Unit Stats */
.lex-stats-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.lex-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    background: var(--white);
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    text-align: center;
}

.lex-stat .stat-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.lex-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.lex-stat .stat-label {
    font-size: 0.85rem;
    color: var(--gray-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Description */
.lex-description-section {
    padding: 20px 0;
}

.lex-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-dark);
}

/* CTA Section */
.lex-cta-section {
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.1), rgba(127, 176, 105, 0.1));
    border-radius: var(--border-radius);
}

.lex-btn-primary {
    padding: 16px 48px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-green));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(139, 126, 200, 0.3);
}

.lex-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(139, 126, 200, 0.4);
}

.lex-cta-subtext {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--gray-dark);
}

/* ========================================
   What's Inside Tab (Block List)
   ======================================== */

.lex-blocks-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lex-block-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--white);
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.lex-block-item:hover {
    border-color: var(--primary-purple);
    box-shadow: 0 4px 12px rgba(139, 126, 200, 0.2);
}

.block-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-green));
    color: var(--white);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
}

.block-icon {
    font-size: 2rem;
}

.block-details {
    flex: 1;
}

.block-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 4px 0;
}

.block-meta {
    font-size: 0.85rem;
    color: var(--gray-dark);
    margin: 0;
}

.block-badges {
    display: flex;
    gap: 8px;
}

.block-badge-preview,
.block-badge-required {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.block-badge-preview {
    background: var(--primary-green);
    color: var(--white);
}

.block-badge-required {
    background: var(--gray-medium);
    color: var(--gray-dark);
}

/* ========================================
   Reviews Tab
   ======================================== */

.lex-reviews-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.reviews-summary-card {
    padding: 24px;
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.1), rgba(127, 176, 105, 0.1));
    border-radius: var(--border-radius);
    text-align: center;
}

.summary-rating {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.rating-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.rating-stars {
    font-size: 1.5rem;
    color: #FFD700;
    letter-spacing: 4px;
}

.rating-count {
    font-size: 0.95rem;
    color: var(--gray-dark);
}

.lex-reviews-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ========================================
   Utility & Loading States
   ======================================== */

.lex-loading {
    text-align: center;
    padding: 40px;
    color: var(--gray-dark);
    font-size: 1rem;
}

.lex-error-state {
    text-align: center;
    padding: 40px;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.error-message {
    font-size: 1.1rem;
    color: var(--gray-dark);
    margin-bottom: 24px;
}

.no-data {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-style: italic;
}

.no-data-subtext {
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-dark);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1200px) {
    .lex-stats-section {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .lex-modal-container {
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
        margin: 0;
    }

    .lex-modal-header,
    .lex-modal-body {
        padding: 20px;
    }

    .lex-modal-tabs {
        padding: 0 20px;
    }

    .lex-tab-btn {
        padding: 12px 8px;
        font-size: 0.85rem;
    }

    .lex-tab-btn .tab-icon {
        font-size: 1rem;
    }

    .lex-tab-btn .tab-label {
        display: none;
    }

    .lex-hero-image {
        height: 200px;
    }

    .lex-stats-section {
        grid-template-columns: repeat(2, 1fr);
    }

    .lex-block-item {
        flex-wrap: wrap;
    }

    .block-badges {
        width: 100%;
        justify-content: flex-start;
        margin-top: 8px;
    }
}

@media (max-width: 480px) {
    .lex-modal-title {
        font-size: 1.25rem;
    }

    .lex-btn-primary {
        padding: 12px 32px;
        font-size: 1rem;
    }

    .lex-stats-section {
        grid-template-columns: 1fr;
    }

    .block-number {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }

    .block-icon {
        font-size: 1.5rem;
    }
}

/* ========================================
   Purchase Modal Stub
   ======================================== */

.purchase-modal-content {
    text-align: center;
    padding: 20px;
}

.purchase-modal-content p {
    margin: 12px 0;
    font-size: 1rem;
    color: var(--gray-dark);
}

.purchase-modal-content p strong {
    color: var(--primary-purple);
    font-size: 1.2rem;
}

.purchase-actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    justify-content: center;
}


/* ========================================
   Block Components - Shared Styles
   ======================================== */

.block {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.block-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark, #212529);
    margin: 0 0 1.5rem 0;
}

.block-footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-light, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
}

.btn-mark-complete,
.btn-save,
.btn-submit {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #8B7EC8, #7FB069);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-mark-complete:hover,
.btn-save:hover,
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 126, 200, 0.3);
}

.btn-mark-complete:disabled,
.btn-save:disabled,
.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary,
.btn-clear,
.btn-retry {
    padding: 0.75rem 1.5rem;
    background: white;
    color: var(--text-dark, #212529);
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover,
.btn-clear:hover,
.btn-retry:hover {
    background: var(--gray-light, #f8f9fa);
    border-color: var(--primary-purple, #8B7EC8);
}

.completion-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(127, 176, 105, 0.1), rgba(127, 176, 105, 0.2));
    color: var(--primary-green, #7FB069);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}


/* ========================================
   Block Text Component
   ======================================== */

.block-text .read-time-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gray-light, #f8f9fa);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-muted, #6c757d);
    margin-bottom: 1.5rem;
}

.block-text .text-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark, #212529);
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 1rem;
}

.block-text .text-content h3,
.block-text .text-content h4,
.block-text .text-content h5 {
    color: var(--primary-purple, #8B7EC8);
    margin: 1.5rem 0 1rem 0;
}

.block-text .text-content h3 {
    font-size: 1.5rem;
}

.block-text .text-content h4 {
    font-size: 1.25rem;
}

.block-text .text-content h5 {
    font-size: 1.1rem;
}

.block-text .text-content p {
    margin-bottom: 1rem;
}

.block-text .text-content ul,
.block-text .text-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.block-text .text-content li {
    margin-bottom: 0.5rem;
}

.block-text .text-content code {
    background: var(--gray-light, #f8f9fa);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9em;
}

.block-text .text-content pre {
    background: #1e1e2e;
    color: #cdd6f4;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.block-text .text-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.block-text .text-content blockquote {
    border-left: 4px solid var(--primary-purple, #8B7EC8);
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.05), rgba(127, 176, 105, 0.05));
    font-style: italic;
}

.block-text .text-content a {
    color: var(--primary-purple, #8B7EC8);
    text-decoration: underline;
}

.block-text .text-content a:hover {
    color: var(--primary-green, #7FB069);
}


/* ========================================
   Block Quiz Component
   ======================================== */

.block-quiz .quiz-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-light, #e9ecef);
}

.block-quiz .question-count {
    font-size: 0.9rem;
    color: var(--text-muted, #6c757d);
}

.block-quiz .quiz-status {
    font-size: 0.9rem;
    font-weight: 600;
}

.block-quiz .quiz-question {
    background: var(--gray-light, #f8f9fa);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.block-quiz .question-number {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-purple, #8B7EC8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.block-quiz .question-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-dark, #212529);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.block-quiz .question-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.block-quiz .option-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: white;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.block-quiz .option-label:hover {
    border-color: var(--primary-purple, #8B7EC8);
}

.block-quiz .option-label.selected {
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.1), rgba(127, 176, 105, 0.1));
    border-color: var(--primary-purple, #8B7EC8);
}

.block-quiz .option-label.correct {
    background: rgba(127, 176, 105, 0.15);
    border-color: var(--primary-green, #7FB069);
}

.block-quiz .option-label.incorrect {
    background: rgba(220, 53, 69, 0.1);
    border-color: #dc3545;
}

.block-quiz .option-input {
    display: none;
}

.block-quiz .option-marker {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color, #dee2e6);
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    transition: all 0.2s ease;
}

.block-quiz .option-label.selected .option-marker {
    border-color: var(--primary-purple, #8B7EC8);
    background: var(--primary-purple, #8B7EC8);
}

.block-quiz .option-label.selected .option-marker::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

.block-quiz .option-label.correct .option-marker {
    border-color: var(--primary-green, #7FB069);
    background: var(--primary-green, #7FB069);
}

.block-quiz .option-label.correct .option-marker::after {
    content: '✓';
    font-size: 14px;
    color: white;
}

.block-quiz .option-label.incorrect .option-marker {
    border-color: #dc3545;
    background: #dc3545;
}

.block-quiz .option-label.incorrect .option-marker::after {
    content: '✗';
    font-size: 14px;
    color: white;
}

.block-quiz .option-text {
    flex: 1;
    font-size: 1rem;
    color: var(--text-dark, #212529);
}

.block-quiz .question-explanation {
    margin-top: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.05), rgba(127, 176, 105, 0.1));
    border-radius: 6px;
    border-left: 4px solid var(--primary-green, #7FB069);
}

.block-quiz .explanation-content {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-dark, #212529);
}

.block-quiz .quiz-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.block-quiz .quiz-results {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.block-quiz .quiz-results.passed {
    background: rgba(127, 176, 105, 0.1);
    border: 2px solid var(--primary-green, #7FB069);
}

.block-quiz .quiz-results.failed {
    background: rgba(220, 53, 69, 0.1);
    border: 2px solid #dc3545;
}

.block-quiz .results-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.block-quiz .score-display {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark, #212529);
}

.block-quiz .pass-status {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.block-quiz .pass-status.passed {
    color: var(--primary-green, #7FB069);
}

.block-quiz .pass-status.failed {
    color: #dc3545;
}


/* ========================================
   Block Interactive Component
   ======================================== */

.block-interactive .interactive-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-light, #e9ecef);
}

.block-interactive .interactive-type {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.1), rgba(127, 176, 105, 0.1));
    color: var(--primary-purple, #8B7EC8);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.block-interactive .save-status {
    font-size: 0.85rem;
    font-weight: 500;
}

.block-interactive .save-status.saved {
    color: var(--primary-green, #7FB069);
}

.block-interactive .save-status.unsaved {
    color: #ffc107;
}

.block-interactive .save-status.saving {
    color: var(--text-muted, #6c757d);
}

.block-interactive .interactive-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.block-interactive .field-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.block-interactive .field-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark, #212529);
}

.block-interactive .required-marker {
    color: #dc3545;
    margin-left: 0.25rem;
}

.block-interactive .field-input {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color, #dee2e6);
    border-radius: 6px;
    transition: all 0.2s ease;
    font-family: inherit;
}

.block-interactive .field-input:focus {
    outline: none;
    border-color: var(--primary-purple, #8B7EC8);
    box-shadow: 0 0 0 3px rgba(139, 126, 200, 0.1);
}

.block-interactive .field-input.error {
    border-color: #dc3545;
    background: rgba(220, 53, 69, 0.05);
}

.block-interactive .field-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

.block-interactive .field-select {
    cursor: pointer;
    background-color: white;
}

.block-interactive .checkbox-group,
.block-interactive .radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.block-interactive .checkbox-label,
.block-interactive .radio-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-dark, #212529);
}

.block-interactive .checkbox-label input,
.block-interactive .radio-label input {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.block-interactive .interactive-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-light, #e9ecef);
}

.block-interactive .completion-badge {
    margin-top: 1rem;
    justify-content: center;
}


/* ========================================
   Block Video Component Enhancements
   ======================================== */

.block-video .video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

.block-video .video-container iframe,
.block-video .video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.block-video .video-metadata {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 0.5rem;
}

.block-video .duration {
    font-size: 0.9rem;
    color: var(--text-muted, #6c757d);
}


/* ========================================
   Content Player Engine Styles
   ======================================== */

content-player-engine {
    display: block;
    height: 100%;
}

content-player-engine .content-player {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: white;
}

content-player-engine .player-header {
    padding: 1rem 2rem;
    background: var(--gray-light, #f8f9fa);
    border-bottom: 1px solid var(--border-color, #dee2e6);
}

content-player-engine .progress-container {
    height: 6px;
    background: var(--gray-light, #e9ecef);
    border-radius: 3px;
    overflow: hidden;
}

content-player-engine .progress-bar {
    height: 100%;
    background: linear-gradient(135deg, #8B7EC8, #7FB069);
    transition: width 0.3s ease;
}

content-player-engine .player-main {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

content-player-engine .block-container {
    max-width: 1100px;
    margin: 0 auto;
}

content-player-engine .loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    color: var(--text-muted, #6c757d);
}

content-player-engine .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-light, #e9ecef);
    border-top-color: var(--primary-purple, #8B7EC8);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

content-player-engine .error-state {
    text-align: center;
    padding: 4rem;
    color: var(--text-muted, #6c757d);
}

content-player-engine .player-footer {
    padding: 1rem 2rem;
    background: var(--gray-light, #f8f9fa);
    border-top: 1px solid var(--border-color, #dee2e6);
}

content-player-engine .player-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
}

content-player-engine .btn-previous,
content-player-engine .btn-next {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: white;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark, #212529);
    transition: all 0.2s ease;
}

content-player-engine .btn-previous:hover:not(:disabled),
content-player-engine .btn-next:hover:not(:disabled) {
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.1), rgba(127, 176, 105, 0.1));
    border-color: var(--primary-purple, #8B7EC8);
}

content-player-engine .btn-previous:disabled,
content-player-engine .btn-next:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

content-player-engine .block-indicator {
    font-size: 0.95rem;
    color: var(--text-muted, #6c757d);
}

content-player-engine .block-indicator #current-block {
    font-weight: 600;
    color: var(--primary-purple, #8B7EC8);
}


/* ========================================
   LEx Unit Detail Modal - Simple Layout
   ======================================== */

.lex-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

.lex-modal-overlay .lex-modal-container {
    position: relative;
    background: var(--white, #ffffff);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

.lex-modal-overlay .lex-modal-content {
    padding: 32px;
}

.lex-modal-overlay .lex-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-dark, #6c757d);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    z-index: 1;
}

.lex-modal-overlay .lex-modal-close:hover {
    background: var(--gray-light, #f8f9fa);
    color: var(--text-dark, #212529);
}

/* Modal Loading State */
.lex-modal-loading {
    text-align: center;
    padding: 60px;
    color: var(--gray-dark, #6c757d);
}

.lex-modal-loading .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-light, #e9ecef);
    border-top-color: var(--primary-purple, #8B7EC8);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

/* Modal Error State */
.lex-modal-error {
    text-align: center;
    padding: 40px;
}

.lex-modal-error .error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Unit Detail Layout */
.lex-unit-detail {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.lex-unit-detail .unit-header {
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-light, #e9ecef);
}

.lex-unit-detail .unit-topic {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(139, 126, 200, 0.1), rgba(127, 176, 105, 0.1));
    border-radius: 20px;
    margin-bottom: 16px;
}

.lex-unit-detail .topic-icon {
    font-size: 1.2rem;
}

.lex-unit-detail .topic-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-purple, #8B7EC8);
}

.lex-unit-detail .unit-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark, #212529);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.lex-unit-detail .unit-subtitle {
    font-size: 1.1rem;
    color: var(--gray-dark, #6c757d);
    margin: 0;
}

/* Unit Meta Info */
.lex-unit-detail .unit-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.lex-unit-detail .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    color: var(--gray-dark, #6c757d);
}

.lex-unit-detail .meta-icon {
    font-size: 1.1rem;
}

.lex-unit-detail .meta-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.lex-unit-detail .meta-badge.free {
    background: var(--primary-green, #7FB069);
    color: white;
}

/* Unit Description */
.lex-unit-detail .unit-description {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-dark, #212529);
}

.lex-unit-detail .unit-description p {
    margin: 0;
}

/* Learning Outcomes */
.lex-unit-detail .unit-outcomes {
    background: var(--gray-light, #f8f9fa);
    padding: 20px;
    border-radius: 12px;
}

.lex-unit-detail .unit-outcomes h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark, #212529);
    margin: 0 0 12px 0;
}

.lex-unit-detail .outcomes-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lex-unit-detail .outcomes-list li {
    padding-left: 24px;
    position: relative;
    font-size: 0.95rem;
    color: var(--gray-dark, #6c757d);
    line-height: 1.5;
}

.lex-unit-detail .outcomes-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green, #7FB069);
    font-weight: bold;
}

/* Content Preview */
.lex-unit-detail .unit-content-preview {
    background: white;
    border: 1px solid var(--gray-light, #e9ecef);
    border-radius: 12px;
    padding: 20px;
}

.lex-unit-detail .unit-content-preview h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark, #212529);
    margin: 0 0 12px 0;
}

.lex-unit-detail .blocks-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lex-unit-detail .block-preview-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: var(--gray-light, #f8f9fa);
    border-radius: 8px;
}

.lex-unit-detail .block-preview-item .block-number {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-purple, #8B7EC8);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.lex-unit-detail .block-preview-item .block-icon {
    font-size: 1.2rem;
}

.lex-unit-detail .block-preview-item .block-title {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-dark, #212529);
    margin: 0;
}

.lex-unit-detail .block-preview-item .preview-badge {
    padding: 2px 8px;
    background: var(--primary-green, #7FB069);
    color: white;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.lex-unit-detail .block-preview-item .block-duration {
    font-size: 0.85rem;
    color: var(--gray-dark, #6c757d);
}

/* Unit Tags */
.lex-unit-detail .unit-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.lex-unit-detail .tag {
    padding: 4px 12px;
    background: var(--gray-light, #f8f9fa);
    border: 1px solid var(--gray-medium, #dee2e6);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--gray-dark, #6c757d);
}

/* Unit Actions */
.lex-unit-detail .unit-actions {
    text-align: center;
    padding-top: 16px;
}

.lex-unit-detail .btn-start {
    padding: 14px 40px;
    background: linear-gradient(135deg, var(--primary-purple, #8B7EC8), var(--primary-green, #7FB069));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(139, 126, 200, 0.3);
}

.lex-unit-detail .btn-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 126, 200, 0.4);
}

/* Unit Stats */
.lex-unit-detail .unit-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-light, #e9ecef);
}

.lex-unit-detail .stat {
    text-align: center;
}

.lex-unit-detail .stat-value {
    font-weight: 600;
    color: var(--text-dark, #212529);
}

.lex-unit-detail .stat-label {
    font-size: 0.85rem;
    color: var(--gray-dark, #6c757d);
    margin-left: 4px;
}

/* Responsive */
@media (max-width: 600px) {
    .lex-modal-overlay {
        padding: 10px;
    }

    .lex-modal-overlay .lex-modal-container {
        max-height: 95vh;
    }

    .lex-modal-overlay .lex-modal-content {
        padding: 20px;
    }

    .lex-unit-detail .unit-title {
        font-size: 1.4rem;
    }

    .lex-unit-detail .unit-meta {
        gap: 10px;
    }

    .lex-unit-detail .btn-start {
        width: 100%;
    }
}