/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #0f172a;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.cart-icon {
    position: relative;
    font-size: inherit;
    cursor: pointer;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent-color);
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h60v60H0z" fill="none"/><path d="M30 0L0 30l30 30 30-30L30 0z" fill="rgba(255,255,255,0.03)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 600px;
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 32px;
    opacity: 0.95;
}

.hero-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
}

.feature-item {
    font-size: 16px;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.trust-signals {
    font-size: 14px;
    opacity: 0.9;
}

.hero-image {
    position: relative;
}

.video-preview-large {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s;
}

.video-preview-large:hover {
    transform: translateY(-8px);
}

.video-thumbnail {
    position: relative;
    cursor: pointer;
    transition: opacity 0.3s;
}

.video-embed-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    background: #000;
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

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

.hero-img {
    width: 100%;
    height: auto;
    display: block;
    background: rgba(0, 0, 0, 0.2);
    aspect-ratio: 16/9;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary-color);
    padding-left: 6px;
    transition: all 0.3s;
}

.video-preview-large:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
    background: white;
}

.video-label {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-size: 16px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.7);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 16px 36px;
    font-size: 18px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Social Proof Bar */
.social-proof-bar {
    background: var(--secondary-color);
    color: white;
    padding: 40px 0;
}

.proof-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.proof-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.proof-label {
    font-size: 14px;
    opacity: 0.8;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--secondary-color);
}

.section-header p {
    font-size: 20px;
    color: var(--text-light);
}

/* Bundles Section */
.bundles {
    padding: 100px 0;
    background: var(--bg-light);
}

.bundle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.bundle-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    border: 2px solid transparent;
    position: relative;
}

.bundle-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.bundle-card.featured {
    border-color: var(--primary-color);
}

.bundle-card.ultimate {
    border-color: var(--accent-color);
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.bundle-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.bundle-card.ultimate .bundle-badge {
    background: var(--accent-color);
}

.bundle-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--secondary-color);
}

.bundle-description {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.bundle-includes {
    list-style: none;
    margin-bottom: 32px;
}

.bundle-includes li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 15px;
}

.bundle-includes li:last-child {
    border-bottom: none;
    color: var(--success-color);
    font-weight: 600;
}

.bundle-pricing {
    text-align: center;
    margin-bottom: 24px;
}

.original-price {
    display: block;
    font-size: 18px;
    color: var(--text-light);
    text-decoration: line-through;
    margin-bottom: 8px;
}

.bundle-price {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.savings {
    display: block;
    font-size: 14px;
    color: var(--success-color);
    font-weight: 600;
}

/* Lessons Section */
.lessons {
    padding: 100px 0;
}

.lesson-category {
    margin-bottom: 80px;
}

.category-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--secondary-color);
    padding-bottom: 16px;
    border-bottom: 3px solid var(--primary-color);
}

.lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
}

.lesson-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.lesson-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.lesson-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
    cursor: pointer;
}

.lesson-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.lesson-card:hover .play-overlay {
    opacity: 1;
}

.play-icon {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-color);
    padding-left: 4px;
    margin-bottom: 8px;
}

.preview-text {
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.lesson-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
}

.lesson-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.lesson-content h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--secondary-color);
}

.lesson-level {
    margin-bottom: 12px;
}

.level-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.level-badge.intermediate {
    background: #dbeafe;
    color: #1e40af;
}

.level-badge.advanced {
    background: #fce7f3;
    color: #9f1239;
}

.level-badge.all-levels {
    background: #d1fae5;
    color: #065f46;
}

.lesson-excerpt {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}

.lesson-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.feature {
    font-size: 14px;
    color: var(--text-dark);
}

.lesson-outcomes {
    background: var(--bg-light);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.outcome-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--secondary-color);
}

.lesson-outcomes ul {
    list-style: none;
    padding-left: 0;
}

.lesson-outcomes li {
    font-size: 14px;
    color: var(--text-light);
    padding: 4px 0;
    padding-left: 16px;
    position: relative;
}

.lesson-outcomes li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.lesson-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.lesson-price {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
    background: var(--bg-light);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stars {
    font-size: 18px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
}

.testimonial-author strong {
    font-weight: 600;
    color: var(--secondary-color);
}

.testimonial-author span {
    font-size: 14px;
    color: var(--text-light);
}

/* About Section */
.about {
    padding: 100px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    background: var(--bg-light);
    aspect-ratio: 3/4;
    object-fit: cover;
}

.about-text h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.about-lead {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.credentials {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.credential-item {
    display: flex;
    gap: 16px;
}

.credential-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.credential-text strong {
    display: block;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.credential-text p {
    font-size: 14px;
    color: var(--text-light);
}

/* Guarantee Section */
.guarantee {
    padding: 80px 0;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.guarantee-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 60px;
    align-items: center;
}

.guarantee-badge {
    text-align: center;
}

.badge-circle {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.2);
    border: 4px solid white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 12px;
}

.badge-text {
    font-weight: 600;
    font-size: 16px;
    line-height: 1.4;
}

.guarantee-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.guarantee-text p {
    font-size: 18px;
    margin-bottom: 24px;
    opacity: 0.95;
}

.guarantee-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.guarantee-features li {
    font-size: 16px;
    font-weight: 500;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.faq-item {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.faq-item:hover {
    border-color: var(--primary-color);
    background: white;
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.faq-answer {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Final CTA */
.final-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 22px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.final-cta .trust-signals {
    display: flex;
    gap: 32px;
    justify-content: center;
    font-size: 15px;
    opacity: 0.9;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-section p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
    font-size: 14px;
}

.footer-section ul li a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.social-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.7;
}

/* Cart Sidebar */
.cart-sidebar {
    position: fixed;
    right: -400px;
    top: 0;
    width: 400px;
    height: 100vh;
    background: white;
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    transition: right 0.3s;
    display: flex;
    flex-direction: column;
}

.cart-sidebar.open {
    right: 0;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.cart-header h3 {
    font-size: 24px;
    font-weight: 700;
}

.close-cart {
    background: none;
    border: none;
    font-size: 32px;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.2s;
}

.close-cart:hover {
    color: var(--text-dark);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.empty-cart {
    text-align: center;
    color: var(--text-light);
    padding: 40px 0;
    font-size: 16px;
}

.cart-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-light);
    border-radius: 8px;
    margin-bottom: 12px;
}

.cart-item-info {
    flex: 1;
}

.cart-item-title {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 14px;
}

.cart-item-price {
    color: var(--primary-color);
    font-weight: 600;
}

.remove-item {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 20px;
    padding: 0 8px;
    transition: color 0.2s;
}

.remove-item:hover {
    color: #ef4444;
}

.cart-footer {
    border-top: 1px solid var(--border-color);
    padding: 24px;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.total-amount {
    color: var(--primary-color);
}

.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
}

.cart-overlay.active {
    display: block;
}

.checkout-btn {
    background: var(--success-color);
}

.checkout-btn:hover {
    background: #059669;
}

/* Video Modal */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.video-modal.active {
    display: flex;
}

.video-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    cursor: pointer;
}

.video-modal-content {
    position: relative;
    width: 90%;
    max-width: 1200px;
    z-index: 10001;
    animation: modalFadeIn 0.3s ease-out;
}

.video-modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 48px;
    cursor: pointer;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.video-modal-close:hover {
    transform: scale(1.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    background: #000;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

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

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero h1 {
        font-size: 42px;
    }

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

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

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

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

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
        font-size: 14px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 36px;
    }

    .video-modal-content {
        width: 95%;
    }

    .video-modal-close {
        top: -40px;
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .proof-items {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .proof-number {
        font-size: 36px;
    }

    .section-header h2 {
        font-size: 32px;
    }

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

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

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

    .guarantee-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .guarantee-features {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 36px;
    }

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

    .final-cta .trust-signals {
        flex-direction: column;
        gap: 12px;
    }

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

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.lesson-card,
.bundle-card,
.testimonial-card {
    animation: fadeInUp 0.6s ease-out;
}