/* ============================================
COURSE DETAIL PAGE STYLES
============================================ */

/* ============================================
LOADING AND ERROR STATES
============================================ */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
}

    .loading-container h4 {
        color: var(--takwin-primary);
        margin-top: 1rem;
        font-weight: 600;
    }

.not-found-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.not-found-content {
    text-align: center;
    max-width: 400px;
}

    .not-found-content i {
        font-size: 4rem;
        color: var(--takwin-warning);
        margin-bottom: 1rem;
    }

    .not-found-content h3 {
        color: var(--takwin-dark);
        margin-bottom: 1rem;
    }

    .not-found-content p {
        color: var(--takwin-gray);
        margin-bottom: 2rem;
    }

/* ============================================
BREADCRUMB SECTION
============================================ */
.breadcrumb-section {
    background: var(--takwin-light);
    padding: 1rem 0;
    border-bottom: 1px solid var(--takwin-border);
}

.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
    font-size: 0.9rem;
}

.breadcrumb-item a {
    color: var(--takwin-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

    .breadcrumb-item a:hover {
        color: var(--takwin-secondary);
    }

.breadcrumb-separator {
    margin: 0 0.75rem;
    color: var(--takwin-gray);
}

.breadcrumb-item.active {
    color: var(--takwin-dark);
    font-weight: 500;
}

/* ============================================
HERO BANNER SECTION
============================================ */
.course-hero-banner {
    position: relative;
    background: var(--gradient-primary);
    color: white;
    padding: 4rem 0;
    margin-bottom: 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(46, 124, 228, 0.9), rgba(76, 175, 80, 0.8));
}

.course-hero-content {
    position: relative;
    z-index: 2;
}

.course-category-links {
    margin-bottom: 1rem;
}

.category-link,
.level-link {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    margin-left: 0.5rem;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

    .category-link:hover,
    .level-link:hover {
        background: rgba(255,255,255,0.3);
        color: white;
        text-decoration: none;
    }

.course-hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.course-instructor {
    margin-bottom: 1.5rem;
}

.instructor-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: var(--transition-fast);
}

    .instructor-link:hover {
        color: white;
        text-decoration: none;
    }

.instructor-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
}

.course-meta-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.rating-stars {
    display: flex;
    gap: 2px;
}

    .rating-stars .fa-star {
        font-size: 0.9rem;
        color: rgba(255,255,255,0.3);
    }

        .rating-stars .fa-star.filled {
            color: #ffc107;
        }

.rating-text,
.reviews-count {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.9);
}

.meta-separator {
    color: rgba(255,255,255,0.5);
}

.course-students {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.9);
}

.share-btn {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
}

    .share-btn:hover {
        background: rgba(255,255,255,0.2);
        border-color: rgba(255,255,255,0.5);
    }

.hero-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-course-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 25px rgba(46, 124, 228, 0.15);
}

/* ============================================
MAIN CONTENT SECTION
============================================ */
.course-main-content {
    padding: 3rem 0;
    background: var(--takwin-light);
}

/* ============================================
NAVIGATION TABS
============================================ */
.course-nav-tabs {
    background: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    box-shadow: 0 2px 8px rgba(46, 124, 228, 0.08);
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--header-height) + 1rem);
    z-index: 100;
}

    .course-nav-tabs .nav-tabs {
        border-bottom: none;
        padding: 0 1.5rem;
    }

    .course-nav-tabs .nav-item {
        margin-bottom: 0;
    }

    .course-nav-tabs .nav-link {
        border: none;
        border-radius: 0;
        color: var(--takwin-gray);
        font-weight: 600;
        padding: 1rem 1.5rem;
        cursor: pointer;
        transition: var(--transition-fast);
        position: relative;
    }

        .course-nav-tabs .nav-link:hover {
            color: var(--takwin-primary);
            background: none;
        }

        .course-nav-tabs .nav-link.active {
            color: var(--takwin-primary);
            background: none;
        }

            .course-nav-tabs .nav-link.active::after {
                content: '';
                position: absolute;
                bottom: 0;
                left: 0;
                right: 0;
                height: 3px;
                background: var(--takwin-primary);
            }

/* ============================================
TAB CONTENT
============================================ */
.course-tab-content {
    background: white;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: 0 2px 8px rgba(46, 124, 228, 0.08);
    min-height: 500px;
}

.tab-pane-content {
    padding: 2rem;
}

.section-title {
    color: var(--takwin-primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--takwin-accent);
    padding-bottom: 0.5rem;
}

.content-expandable {
    position: relative;
}

.description-content {
    line-height: 1.8;
    color: var(--takwin-dark);
}

.expand-btn {
    background: none;
    border: none;
    color: var(--takwin-primary);
    font-weight: 600;
    cursor: pointer;
    margin-top: 1rem;
    padding: 0.5rem 0;
    transition: var(--transition-fast);
}

    .expand-btn:hover {
        color: var(--takwin-secondary);
    }

/* ============================================
LEARNING OUTCOMES
============================================ */
.outcomes-list {
    list-style: none;
    padding: 0;
}

    .outcomes-list li {
        display: flex;
        align-items: flex-start;
        gap: 0.75rem;
        margin-bottom: 1rem;
        padding: 1rem;
        background: var(--takwin-blue-light);
        border-radius: var(--border-radius);
        border-left: 4px solid var(--takwin-primary);
    }

        .outcomes-list li i {
            color: var(--takwin-success);
            font-size: 1.2rem;
            margin-top: 0.2rem;
        }

        .outcomes-list li span {
            flex: 1;
            line-height: 1.6;
            color: var(--takwin-dark);
        }

/* ============================================
CURRICULUM CONTENT
============================================ */
.lessons-accordion {
    border: 1px solid var(--takwin-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.lesson-item {
    border-bottom: 1px solid var(--takwin-border);
}

    .lesson-item:last-child {
        border-bottom: none;
    }

.course-detail-page .lesson-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
    background: white;
}

 .course-detail-page    .lesson-header:hover {
        background: var(--takwin-blue-light);
    }

.lesson-info {
    flex: 1;
}

.lesson-title {
    color: var(--takwin-dark);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.lesson-description {
    color: var(--takwin-gray);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

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

.lesson-duration {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--takwin-gray);
    font-size: 0.9rem;
}

    .lesson-duration i {
        color: var(--takwin-primary);
    }

.expand-icon {
    color: var(--takwin-gray);
    transition: transform 0.3s ease;
}

    .expand-icon.rotated {
        transform: rotate(180deg);
    }

.lesson-content {
    padding: 0 1.5rem 1.5rem;
    background: var(--takwin-blue-light);
    border-top: 1px solid var(--takwin-border);
}

.lesson-details {
    padding-top: 1rem;
}

.play-video-btn {
    background: var(--takwin-primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

    .play-video-btn:hover {
        background: var(--takwin-secondary);
        transform: translateY(-2px);
    }

.lesson-resources h5 {
    color: var(--takwin-dark);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.resource-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--takwin-primary);
    text-decoration: none;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition-fast);
    margin-bottom: 0.5rem;
}

    .resource-link:hover {
        background: rgba(46, 124, 228, 0.1);
        text-decoration: none;
        color: var(--takwin-secondary);
    }

/* ============================================
INSTRUCTORS LIST
============================================ */
.instructor-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--takwin-blue-light);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: var(--transition-fast);
}

    .instructor-card:hover {
        background: white;
        box-shadow: 0 4px 12px rgba(46, 124, 228, 0.1);
    }

.instructor-avatar {
    flex-shrink: 0;
}

.instructor-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.instructor-info {
    flex: 1;
}

.instructor-name {
    margin-bottom: 0.5rem;
}

    .instructor-name a {
        color: var(--takwin-dark);
        text-decoration: none;
        font-weight: 600;
    }

        .instructor-name a:hover {
            color: var(--takwin-primary);
            text-decoration: none;
        }

.instructor-title {
    color: var(--takwin-primary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.instructor-stats {
    display: flex;
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--takwin-gray);
    font-size: 0.9rem;
}

    .stat-item i {
        color: var(--takwin-primary);
    }

/* ============================================
REVIEWS SECTION
============================================ */
.reviews-summary {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--takwin-blue-light);
    border-radius: var(--border-radius);
}

.overall-rating {
    text-align: center;
    min-width: 150px;
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--takwin-primary);
    line-height: 1;
}

.overall-rating .rating-stars {
    margin: 0.5rem 0;
    justify-content: center;
}

    .overall-rating .rating-stars .fa-star {
        font-size: 1.2rem;
    }

.reviews-count {
    color: var(--takwin-gray);
    font-size: 0.9rem;
}

.rating-breakdown {
    flex: 1;
}

.rating-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

    .rating-bar .stars {
        display: flex;
        gap: 2px;
        min-width: 100px;
    }

        .rating-bar .stars .fa-star {
            font-size: 0.8rem;
            color: var(--takwin-border);
        }

            .rating-bar .stars .fa-star.filled {
                color: #ffc107;
            }

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--takwin-border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--takwin-primary);
    transition: width 0.3s ease;
}

.percentage {
    min-width: 40px;
    text-align: right;
    font-size: 0.85rem;
    color: var(--takwin-gray);
}

.reviews-list {
    margin-top: 2rem;
}

    .reviews-list h4 {
        color: var(--takwin-dark);
        font-size: 1.25rem;
        margin-bottom: 1.5rem;
    }

.review-item {
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius);
    border: 1px solid var(--takwin-border);
    margin-bottom: 1rem;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.reviewer-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.reviewer-name {
    color: var(--takwin-dark);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.review-rating {
    display: flex;
    gap: 2px;
}

    .review-rating .fa-star {
        font-size: 0.8rem;
        color: var(--takwin-border);
    }

        .review-rating .fa-star.filled {
            color: #ffc107;
        }

.review-date {
    color: var(--takwin-gray);
    font-size: 0.85rem;
}

.review-content {
    line-height: 1.6;
    color: var(--takwin-dark);
}

.no-reviews {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--takwin-gray);
}

    .no-reviews i {
        font-size: 3rem;
        margin-bottom: 1rem;
        opacity: 0.5;
    }

/* ============================================
COURSE SIDEBAR
============================================ */
.course-detail-page .course-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
}

.course-detail-page .course-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 12px rgba(46, 124, 228, 0.1);
    overflow: hidden;
    border: 1px solid var(--takwin-border);
}

.course-detail-page .course-preview-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.course-detail-page .course-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-detail-page .play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0,0,0,0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

    .course-detail-page .play-overlay:hover {
        background: var(--takwin-primary);
        transform: translate(-50%, -50%) scale(1.1);
    }

    .course-detail-page .play-overlay i {
        color: white;
        font-size: 1.5rem;
        margin-left: 3px;
    }

.course-detail-page .course-info-panel {
    padding: 1.5rem;
}

.course-detail-page .course-price {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--takwin-border);
}

.course-detail-page .free-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--takwin-success);
    background: var(--takwin-green-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
}

.course-detail-page .current-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--takwin-primary);
}

.course-detail-page .original-price {
    font-size: 1.2rem;
    color: var(--takwin-gray);
    text-decoration: line-through;
    margin-right: 0.5rem;
}

.course-detail-page .discount-percent {
    background: var(--takwin-error);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 0.5rem;
}

.course-detail-page .course-actions {
    margin-bottom: 1.5rem;
}

.course-detail-page .btn-enroll {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: var(--transition-fast);
}

    .course-detail-page .btn-enroll:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(46, 124, 228, 0.3);
    }

.course-detail-page .action-buttons {
    display: flex;
    gap: 0.5rem;
}

.course-detail-page .btn-wishlist,
.course-detail-page .btn-share {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.9rem;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

    .course-detail-page .btn-wishlist:hover {
        background: rgba(244, 67, 54, 0.1);
        border-color: var(--takwin-error);
        color: var(--takwin-error);
    }

    .course-detail-page .btn-share:hover {
        background: var(--takwin-blue-light);
        border-color: var(--takwin-primary);
        color: var(--takwin-primary);
    }

.course-detail-page .course-includes {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--takwin-border);
}

    .course-detail-page .course-includes h4 {
        color: var(--takwin-dark);
        font-size: 1rem;
        font-weight: 600;
        margin-bottom: 1rem;
    }

.course-detail-page .includes-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

    .course-detail-page .includes-list li {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        margin-bottom: 0.75rem;
        font-size: 0.9rem;
        color: var(--takwin-dark);
    }

        .course-detail-page .includes-list li i {
            color: var(--takwin-primary);
            width: 16px;
        }

.course-detail-page .course-details h4 {
    color: var(--takwin-dark);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.course-detail-page .detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.course-detail-page .detail-label {
    color: var(--takwin-gray);
}

.course-detail-page .detail-value {
    color: var(--takwin-dark);
    font-weight: 500;
}

/* ============================================
RELATED COURSES SECTION
============================================ */
.related-courses {
    padding: 3rem 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

    .section-header h2 {
        color: var(--takwin-dark);
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .section-header p {
        color: var(--takwin-gray);
        font-size: 1.1rem;
    }

.related-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.related-course-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 2px 8px rgba(46, 124, 228, 0.08);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--takwin-border);
}

    .related-course-card:hover {
        box-shadow: 0 8px 25px rgba(46, 124, 228, 0.15);
        transform: translateY(-4px);
    }

    .related-course-card .course-link {
        display: block;
        text-decoration: none;
        color: inherit;
    }

        .related-course-card .course-link:hover {
            text-decoration: none;
            color: inherit;
        }

    .related-course-card .course-image {
        position: relative;
        height: 180px;
        overflow: hidden;
    }

        .related-course-card .course-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

    .related-course-card:hover .course-image img {
        transform: scale(1.05);
    }

.course-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.course-level {
    background: var(--takwin-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.related-course-card .course-content {
    padding: 1.5rem;
}

.related-course-card .course-title {
    color: var(--takwin-dark);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-course-card .course-instructor {
    color: var(--takwin-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.related-course-card .course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.related-course-card .course-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

    .related-course-card .course-rating .fa-star {
        font-size: 0.8rem;
        color: var(--takwin-border);
    }

        .related-course-card .course-rating .fa-star.filled {
            color: #ffc107;
        }

    .related-course-card .course-rating span {
        font-size: 0.85rem;
        color: var(--takwin-gray);
        margin-left: 0.25rem;
    }

.related-course-card .course-price .free {
    color: var(--takwin-success);
    font-weight: 600;
    font-size: 0.9rem;
}

.related-course-card .course-price .price {
    color: var(--takwin-primary);
    font-weight: 600;
    font-size: 1rem;
}

/* ============================================
VIDEO MODAL
============================================ */
.video-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.video-modal-content {
    width: 100%;
    max-width: 900px;
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(46, 124, 228, 0.15);
}

.video-modal-header {
    display: flex;
    justify-content: flex-end;
    padding: 1rem;
    background: var(--takwin-dark);
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: var(--transition-fast);
}

    .close-btn:hover {
        background: rgba(255,255,255,0.1);
    }

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

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

/* ============================================
SHARE POPUP
============================================ */
.share-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.share-popup-content {
    background: white;
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 100%;
    box-shadow: 0 8px 25px rgba(46, 124, 228, 0.15);
}

.share-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--takwin-border);
}

    .share-header h3 {
        color: var(--takwin-dark);
        font-size: 1.25rem;
        font-weight: 600;
        margin: 0;
    }

.share-content {
    padding: 1.5rem;
}

    .share-content p {
        color: var(--takwin-gray);
        text-align: center;
        margin-bottom: 1.5rem;
    }

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.share-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

    .share-btn:hover {
        transform: translateY(-2px);
        text-decoration: none;
        color: white;
    }

    .share-btn.facebook {
        background: #1877f2;
    }

        .share-btn.facebook:hover {
            background: #166fe5;
        }

    .share-btn.twitter {
        background: #1da1f2;
    }

        .share-btn.twitter:hover {
            background: #1a91da;
        }

    .share-btn.whatsapp {
        background: #25d366;
    }

        .share-btn.whatsapp:hover {
            background: #22c05b;
        }

    .share-btn.telegram {
        background: #0088cc;
    }

        .share-btn.telegram:hover {
            background: #0077b5;
        }

.copy-link p {
    color: var(--takwin-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.copy-field {
    display: flex;
    gap: 0.5rem;
}

.link-input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--takwin-border);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    background: var(--takwin-light);
}

.copy-btn {
    background: var(--takwin-primary);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

    .copy-btn:hover {
        background: var(--takwin-secondary);
    }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 992px) {
    .course-hero-title {
        font-size: 2rem;
    }

    .course-sidebar {
        position: static;
        margin-top: 2rem;
    }

    .reviews-summary {
        flex-direction: column;
        text-align: center;
    }

    .overall-rating {
        min-width: auto;
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .course-hero-banner {
        padding: 2rem 0;
    }

    .course-hero-title {
        font-size: 1.75rem;
    }

    .course-meta-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .course-nav-tabs .nav-tabs {
        padding: 0 1rem;
        overflow-x: auto;
        white-space: nowrap;
    }

    .course-nav-tabs .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .tab-pane-content {
        padding: 1.5rem;
    }

    .instructor-card {
        flex-direction: column;
        text-align: center;
    }

    .instructor-stats {
        justify-content: center;
    }

    .rating-bar {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }

        .rating-bar .stars {
            min-width: auto;
        }

    .related-courses-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

@media (max-width: 576px) {
    .course-main-content {
        padding: 2rem 0;
    }

    .course-hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .course-info-panel {
        padding: 1rem;
    }

    .video-modal-overlay {
        padding: 1rem;
    }

    .share-popup-content {
        margin: 1rem;
        width: calc(100% - 2rem);
    }

    .share-buttons {
        gap: 0.75rem;
    }

    .share-btn {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.course-card,
.related-course-card,
.instructor-card,
.review-item {
    animation: fadeInUp 0.5s ease-out;
}

/* ============================================
   MODULE STRUCTURE ADDITIONS FOR COURSE DETAILS
   ============================================ */

/* Updated Curriculum Content for Module Structure */
.curriculum-content {
    background: white;
    border-radius: var(--border-radius);
}

.modules-accordion {
    border: 1px solid var(--takwin-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.module-item {
    border-bottom: 1px solid var(--takwin-border);
}

    .module-item:last-child {
        border-bottom: none;
    }

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
    background: white;
    border-bottom: 1px solid var(--takwin-border);
}

    .module-header:hover {
        background: var(--takwin-blue-light);
    }

.module-info {
    flex: 1;
    margin-left: 1rem;
}

.module-title {
    color: var(--takwin-dark);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.module-description {
    color: var(--takwin-gray);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.module-instructor {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--takwin-primary);
    font-size: 0.9rem;
    font-weight: 600;
    background: var(--takwin-blue-lighter);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    display: inline-flex;
    margin-bottom: 0.5rem;
}

    .module-instructor i {
        color: var(--takwin-primary);
        font-size: 0.8rem;
    }

.module-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
    min-width: 150px;
}

.module-duration,
.module-lessons-count {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--takwin-gray);
    font-size: 0.85rem;
    background: var(--takwin-light);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
}

    .module-duration i,
    .module-lessons-count i {
        color: var(--takwin-primary);
        font-size: 0.75rem;
    }

.expand-icon {
    color: var(--takwin-gray);
    transition: transform 0.3s ease;
    font-size: 1.2rem;
    margin-top: 0.5rem;
}

    .expand-icon.rotated {
        transform: rotate(180deg);
    }

.module-content {
    background: var(--takwin-blue-light);
    border-top: 1px solid var(--takwin-border);
}

.lessons-list {
    padding: 1rem 1.5rem 1.5rem;
}

/* Enhanced Lesson Items within Modules */
.lesson-item {
    background: white;
    border: 1px solid var(--takwin-border);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-fast);
}

    .lesson-item:hover {
        box-shadow: 0 2px 8px rgba(46, 124, 228, 0.1);
        border-color: var(--takwin-primary-light);
    }

    .lesson-item:last-child {
        margin-bottom: 0;
    }

.lesson-info {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    flex: 1;
}

.lesson-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--takwin-primary-light);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.lesson-details {
    flex: 1;
}

.lesson-title {
    color: var(--takwin-dark);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.lesson-description {
    color: var(--takwin-gray);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.5;
}

.lesson-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--takwin-light);
    border-top: 1px solid var(--takwin-border);
}

.lesson-duration {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--takwin-gray);
    font-size: 0.85rem;
}

    .lesson-duration i {
        color: var(--takwin-primary);
    }

.free-badge {
    background: var(--takwin-success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.play-lesson-btn {
    background: var(--takwin-primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
}

    .play-lesson-btn:hover {
        background: var(--takwin-secondary);
        transform: translateY(-1px);
    }

.lesson-lock {
    color: var(--takwin-gray);
    font-size: 1.2rem;
    margin-left: auto;
}

.lesson-resources {
    padding: 1rem;
    background: var(--takwin-blue-lighter);
    border-top: 1px solid var(--takwin-border);
}

    .lesson-resources h6 {
        color: var(--takwin-dark);
        font-size: 0.9rem;
        font-weight: 600;
        margin-bottom: 0.75rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

        .lesson-resources h6::before {
            content: '📎';
            font-size: 0.8rem;
        }

    .lesson-resources .resource-link {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        color: var(--takwin-primary);
        text-decoration: none;
        padding: 0.25rem 0.75rem;
        border-radius: 15px;
        transition: var(--transition-fast);
        margin-left: 0.5rem;
        margin-bottom: 0.5rem;
        background: white;
        border: 1px solid var(--takwin-border);
        font-size: 0.85rem;
    }

        .lesson-resources .resource-link:hover {
            background: var(--takwin-primary);
            color: white;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .lesson-resources .resource-link i {
            font-size: 0.8rem;
        }

/* Enhanced Instructors Section with Module Assignments */
.instructor-modules {
    margin: 1rem 0;
}

    .instructor-modules h6 {
        color: var(--takwin-dark);
        font-size: 0.9rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
    }

.module-badge {
    display: inline-block;
    background: var(--takwin-primary-light);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
    margin-bottom: 0.25rem;
    transition: var(--transition-fast);
}

    .module-badge:hover {
        background: var(--takwin-primary);
        transform: translateY(-1px);
    }

.instructor-specialization {
    color: var(--takwin-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Sidebar Updates for Module Structure */
.course-detail-page .course-includes li.modules-count {
    background: var(--takwin-green-lighter);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--takwin-secondary);
    margin-bottom: 0.5rem;
}

.course-detail-page .course-includes li.instructors-count {
    background: var(--takwin-blue-lighter);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--takwin-primary);
    margin-bottom: 0.5rem;
}

/* ============================================
   INSTRUCTOR TAB ENHANCEMENTS
   ============================================ */
.instructors-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.instructor-card {
    background: white;
    border: 2px solid var(--takwin-border);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

    .instructor-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: var(--gradient-primary);
    }

    .instructor-card:hover {
        border-color: var(--takwin-primary);
        background: var(--takwin-blue-lighter);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(46, 124, 228, 0.15);
    }

.instructor-avatar {
    position: relative;
}

.instructor-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--takwin-primary-light);
    transition: var(--transition-fast);
}

.instructor-card:hover .instructor-image {
    border-color: var(--takwin-primary);
}

.instructor-info {
    flex: 1;
}

.instructor-name {
    margin-bottom: 0.5rem;
}

    .instructor-name a {
        color: var(--takwin-dark);
        text-decoration: none;
        font-weight: 700;
        font-size: 1.1rem;
        transition: var(--transition-fast);
    }

        .instructor-name a:hover {
            color: var(--takwin-primary);
            text-decoration: none;
        }

.instructor-title {
    color: var(--takwin-primary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* ============================================
   RESPONSIVE ENHANCEMENTS FOR MODULES
   ============================================ */
@media (max-width: 768px) {
    .module-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .module-meta {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        min-width: auto;
    }

    .lesson-info {
        flex-direction: column;
        gap: 0.75rem;
    }

    .lesson-icon {
        align-self: flex-start;
    }

    .lesson-meta {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .instructor-card {
        flex-direction: column;
        text-align: center;
    }

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

    .module-badge {
        margin: 0.25rem;
    }
}

@media (max-width: 576px) {
    .modules-accordion {
        border-radius: var(--border-radius);
    }

    .module-header {
        padding: 1rem;
    }

    .module-title {
        font-size: 1.1rem;
    }

    .lessons-list {
        padding: 1rem;
    }

    .lesson-item {
        margin-bottom: 0.75rem;
    }

    .lesson-info {
        padding: 0.75rem;
    }

    .lesson-meta {
        padding: 0.5rem 0.75rem;
    }

    .instructor-card {
        padding: 1rem;
    }

    .instructor-image {
        width: 80px;
        height: 80px;
    }
}

/* ============================================
   ENHANCED ANIMATIONS FOR MODULE STRUCTURE
   ============================================ */
@keyframes moduleExpand {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        max-height: 1000px;
        transform: translateY(0);
    }
}

.module-content {
    animation: moduleExpand 0.3s ease-out;
}

@keyframes lessonSlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.lesson-item {
    animation: lessonSlideIn 0.3s ease-out;
}

.lesson-item:nth-child(2) { animation-delay: 0.1s; animation-fill-mode: both; }
.lesson-item:nth-child(3) { animation-delay: 0.2s; animation-fill-mode: both; }
.lesson-item:nth-child(4) { animation-delay: 0.3s; animation-fill-mode: both; }
.lesson-item:nth-child(5) { animation-delay: 0.4s; animation-fill-mode: both; }

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */
.module-header:focus {
    outline: 2px solid var(--takwin-accent);
    outline-offset: 2px;
}

.play-lesson-btn:focus {
    outline: 2px solid var(--takwin-accent);
    outline-offset: 2px;
}

.lesson-resources .resource-link:focus {
    outline: 2px solid var(--takwin-accent);
    outline-offset: 2px;
}

/* ============================================
   MODULE COMPLETION INDICATORS
   ============================================ */
.module-item.completed .module-header {
    background: var(--takwin-green-lighter);
    border-left: 4px solid var(--takwin-success);
}

.module-item.completed .module-title::after {
    content: '✓';
    color: var(--takwin-success);
    margin-right: 0.5rem;
    font-weight: bold;
}

.lesson-item.completed {
    background: var(--takwin-green-lighter);
    border-color: var(--takwin-success);
}

.lesson-item.completed .lesson-icon {
    background: var(--takwin-success);
}

.lesson-item.completed .lesson-title::after {
    content: '✓';
    color: var(--takwin-success);
    margin-right: 0.5rem;
    font-size: 0.9rem;
}

/* ============================================
   PRINT STYLES UPDATES
   ============================================ */
@media print {
    .module-content {
        display: block !important;
    }

    .lesson-meta {
        background: white;
        border-top: 1px solid #ddd;
    }

    .play-lesson-btn,
    .lesson-lock {
        display: none;
    }

    .instructor-modules {
        page-break-inside: avoid;
    }
}