/* ============================================================
   SPECIALTY COURSE SECTION & GLASSMORPHISM POPUP STYLESHEET
   ============================================================ */

/* PART 1: SPECIALTY COURSE SECTION */

.specialty-course-section {
    padding: var(--spacing-2xl) 0;
    margin: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.05) 0%, rgba(231, 76, 60, 0.05) 100%);
}

.specialty-course-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: var(--blur-medium);
    -webkit-backdrop-filter: var(--blur-medium);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--glass-shadow);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.specialty-course-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-4px);
}

.specialty-course-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.specialty-course-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.3;
}

.specialty-course-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.enroll-specialty-btn {
    width: fit-content;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
}

.specialty-course-thumbnail {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
}

.thumbnail-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1), rgba(231, 76, 60, 0.1));
    border: 2px dashed var(--glass-border-hover);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-muted);
    font-weight: 500;
    min-height: 250px;
}

/* Tablet Responsiveness */
@media (max-width: 768px) {
    .specialty-course-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl);
    }

    .specialty-course-thumbnail {
        min-height: 250px;
    }

    .thumbnail-placeholder {
        min-height: 200px;
    }
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .specialty-course-section {
        padding: var(--spacing-xl) 0;
        margin: var(--spacing-xl) 0;
    }

    .specialty-course-card {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }

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

    .specialty-course-description {
        font-size: 1rem;
    }
}

/* ============================================================
   COURSE ENROLLMENT POPUP (GLASSMORPHISM)
   ============================================================ */

/* Overlay Background */
.course-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.course-popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Popup Container Positioning */
.course-popup-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.course-popup-container.active {
    opacity: 1;
    visibility: visible;
}

/* Main Popup Box */
.course-popup {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-medium);
    -webkit-backdrop-filter: var(--blur-medium);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 1000px;
    width: 100%;
    position: relative;
    animation: popupSlideIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    max-height: 85vh;
    overflow-y: auto;
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Close Button */
.popup-close-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    background: var(--glass-bg-hover);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1000;
}

.popup-close-btn:hover {
    background: var(--accent-red);
    border-color: var(--accent-red);
    transform: rotate(90deg);
}

/* Content Wrapper with Sidebar Layout */
.popup-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    align-items: start;
}

/* Main Content Area */
.popup-main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Popup Header */
.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.popup-course-title {
    font-size: 2.5rem;
    color: var(--text-primary);
    font-weight: 800;
    margin: 0;
    flex: 1;
}

.popup-price-badge {
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.2), rgba(255, 107, 157, 0.2));
    border: 1px solid var(--glass-border-hover);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    white-space: nowrap;
}

.price-label {
    font-size: 1.2rem;
    color: var(--accent-pink);
    font-weight: 600;
}

.price-value {
    font-size: 2rem;
    color: var(--text-primary);
    font-weight: 700;
}

/* Tab Navigation */
.popup-tabs {
    display: flex;
    gap: var(--spacing-md);
    border-bottom: 2px solid var(--border-primary);
    overflow-x: auto;
    padding-bottom: 0;
}

.tab-button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 1rem var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-button:hover {
    color: var(--text-primary);
}

.tab-button.active {
    color: var(--accent-pink);
    border-bottom-color: var(--accent-pink);
}

/* Tab Content Area */
.popup-tab-content {
    min-height: 400px;
    padding: var(--spacing-xl) 0;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-pane.active {
    display: block;
}

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

.tab-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tab-section h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
}

.tab-section h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
}

.tab-section p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* Overview Tab Specific Styles */
.learning-outcomes {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.learning-outcomes li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    color: var(--text-secondary);
}

.learning-outcomes li::before {
    content: '✓';
    color: var(--accent-pink);
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: -2px;
}

.course-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    background: var(--glass-bg-hover);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.info-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* Videos Timeline Layout */
.lessons-timeline {
    position: relative;
    padding: var(--spacing-md) 0;
}

.timeline-container {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Vertical Timeline Line */
.timeline-line {
    position: absolute;
    right: 35px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, 
        var(--accent-pink) 0%, 
        var(--accent-red) 50%, 
        var(--accent-pink) 100%);
    opacity: 0.4;
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
    position: relative;
}

.timeline-content {
    flex: 1;
    background: var(--glass-bg-hover);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-content {
    background: var(--glass-bg);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

.timeline-content h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-size: 1.05rem;
}

.lesson-duration {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Timeline Marker Circle */
.timeline-marker {
    position: relative;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 2;
}

.timeline-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-red));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.3);
    border: 3px solid var(--bg-primary);
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-circle {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(255, 107, 157, 0.5);
}

.timeline-number {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.lock-icon {
    color: var(--accent-red);
    font-size: 1.2rem;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .timeline-line {
        right: 25px;
    }

    .timeline-circle {
        width: 60px;
        height: 60px;
    }

    .timeline-number {
        font-size: 1.2rem;
    }

    .timeline-content {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .timeline-line {
        right: 20px;
    }

    .timeline-circle {
        width: 50px;
        height: 50px;
    }

    .timeline-number {
        font-size: 1rem;
    }

    .timeline-content {
        padding: var(--spacing-sm);
    }

    .timeline-content h4 {
        font-size: 0.95rem;
    }
}

/* Explore Tab Styling */
.explore-section {
    position: relative;
    min-height: 500px;
    padding: var(--spacing-xl);
}

.explore-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.02) 0%,
        rgba(52, 152, 219, 0.05) 50%,
        rgba(255, 255, 255, 0.02) 100%),
        url('https://images.unsplash.com/photo-1557821552-17105176677c?w=1200&h=800&fit=crop&q=50&blur=100');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    opacity: 0.3;
    border-radius: var(--radius-md);
    z-index: 0;
}

.explore-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.explore-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: var(--blur-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    cursor: pointer;
}

.explore-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(255, 107, 157, 0.15);
}

.explore-card h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
    font-size: 1.15rem;
}

.explore-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .explore-section {
        min-height: 400px;
        padding: var(--spacing-lg);
    }

    .explore-content {
        grid-template-columns: 1fr;
    }
}

/* Videos Tab */
.lessons-grid {
    display: none; /* Old grid layout - replaced with timeline */
}

.lesson-item {
    display: none; /* Old lesson item - replaced with timeline */
}

/* PDFs Tab */
.resources-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.resource-item {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: var(--spacing-lg);
    align-items: center;
    background: var(--glass-bg-hover);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.resource-item:hover {
    background: var(--glass-bg);
    border-color: var(--glass-border-hover);
}

.resource-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.2), rgba(255, 107, 157, 0.2));
    border-radius: var(--radius-md);
    color: var(--accent-red);
    font-size: 1.5rem;
}

.resource-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.resource-title {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    margin: 0;
}

.resource-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

.resource-action {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.locked-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-red);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ============================================================
   POPUP SIDEBAR
   ============================================================ */

.popup-sidebar {
    position: sticky;
    top: var(--spacing-2xl);
    height: fit-content;
}

.sidebar-sticky {
    background: var(--glass-bg-hover);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.sidebar-header {
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: var(--spacing-md);
}

.sidebar-header h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0;
}

.sidebar-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--glass-border);
}

.sidebar-price .price-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sidebar-price .price-amount {
    font-size: 1.8rem;
    color: var(--accent-pink);
    font-weight: 700;
}

/* Progress Section */
.progress-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--glass-border);
}

.progress-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.progress-bar-wrapper {
    position: relative;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-primary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-pink), var(--accent-red));
    border-radius: 4px;
    transition: width 0.4s ease;
}

.progress-text {
    font-size: 0.85rem;
    color: var(--accent-pink);
    font-weight: 700;
    position: absolute;
    top: 12px;
    right: 0;
}

/* WhatsApp Button */
.whatsapp-enroll-btn {
    width: 100%;
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.whatsapp-enroll-btn i {
    font-size: 1.2rem;
}

.sidebar-note {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.3);
    border-radius: 8px;
    padding: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.sidebar-note p {
    margin: 0;
}

/* ============================================================
   RESPONSIVE ADJUSTMENTS FOR POPUP
   ============================================================ */

@media (max-width: 1024px) {
    .popup-content-wrapper {
        grid-template-columns: 1fr;
    }

    .popup-sidebar {
        position: static;
    }

    .course-info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .course-popup {
        max-width: 95vw;
        max-height: 90vh;
    }

    .popup-content-wrapper {
        padding: var(--spacing-lg);
    }

    .popup-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .popup-course-title {
        font-size: 1.8rem;
    }

    .popup-tabs {
        gap: var(--spacing-sm);
    }

    .tab-button {
        padding: 0.8rem var(--spacing-sm);
        font-size: 0.9rem;
    }

    .lessons-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .resource-item {
        grid-template-columns: 1fr;
    }

    .resource-action {
        align-items: flex-start;
        margin-top: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .course-popup {
        margin: 0;
        border-radius: var(--radius-md);
    }

    .popup-content-wrapper {
        padding: var(--spacing-md);
        gap: var(--spacing-lg);
    }

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

    .popup-tabs {
        gap: 0;
    }

    .tab-button {
        flex: 1;
        padding: 0.6rem 0.5rem;
        font-size: 0.8rem;
    }

    .tab-button i {
        display: none;
    }

    .lessons-grid {
        grid-template-columns: 1fr;
    }

    .sidebar-sticky {
        gap: var(--spacing-sm);
    }

    .course-info-grid {
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
}

/* ============================================================
   SCROLL DISABLE FOR BODY WHEN POPUP ACTIVE
   ============================================================ */

body.popup-open {
    overflow: hidden;
}