* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4F46E5;
    --secondary-color: #10B981;
    --text-color: #1F2937;
    --text-light: #6B7280;
    --bg-color: #F9FAFB;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
    --error-color: #EF4444;
    --success-color: #10B981;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

.cart-link {
    position: relative;
    display: flex;
    align-items: center;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: 0.3s;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), #7C3AED);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
    background-color: #4338CA;
}

.features {
    padding: 80px 0;
    background-color: var(--white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-light);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
    padding: 3rem;
    background-color: var(--bg-color);
    border-radius: 12px;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-light);
}

.about-courses {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.about-courses h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.quality-badges {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.badge svg {
    color: var(--primary-color);
}

.letter-section {
    padding: 80px 0;
    background-color: var(--white);
}

.letter-card {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--bg-color);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.letter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.letter-header h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.letter-date {
    color: var(--text-light);
}

.letter-body p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.chart-section {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.chart-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.chart-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#growthChart {
    width: 100%;
    height: 300px;
}

.chart-legend {
    text-align: center;
    margin-top: 2rem;
    color: var(--text-light);
}

.catalog {
    padding: 80px 0;
    background-color: var(--white);
}

.catalog h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.product-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-detail {
    padding: 80px 0;
    background-color: var(--white);
}

.product-detail-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.product-detail-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.product-detail-info h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.product-detail-price {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.product-detail-description {
    margin-bottom: 2rem;
    line-height: 1.8;
}

.product-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn-buy, .btn-cart {
    flex: 1;
    padding: 15px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: all 0.3s;
}

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

.btn-buy:hover {
    background-color: #4338CA;
}

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

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

.product-features {
    background-color: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
}

.product-features h3 {
    margin-bottom: 1rem;
}

.product-features ul {
    list-style-position: inside;
    color: var(--text-light);
}

.product-features li {
    margin-bottom: 0.5rem;
}

.cart-page, .checkout-page, .success-page, .contact-page, .about-page {
    padding: 80px 0;
    min-height: 60vh;
}

.cart-page h1, .checkout-page h1, .success-page h1, .contact-page h1, .about-page h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.empty-cart {
    text-align: center;
    padding: 3rem;
}

.empty-cart h2 {
    margin-bottom: 1rem;
}

.empty-cart p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.cart-items {
    margin-bottom: 2rem;
}

.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto auto auto;
    gap: 1.5rem;
    align-items: center;
    padding: 1.5rem;
    background-color: var(--white);
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cart-item-image img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
}

.cart-item-info h3 {
    font-size: 1.1rem;
}

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

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quantity-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border-color);
    background-color: var(--white);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s;
}

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

.quantity-input {
    width: 50px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem;
}

.remove-btn {
    padding: 0.5rem 1rem;
    background-color: var(--error-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.remove-btn:hover {
    background-color: #DC2626;
}

.cart-summary {
    max-width: 400px;
    margin-left: auto;
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.cart-summary h2 {
    margin-bottom: 1rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.summary-total {
    font-weight: bold;
    font-size: 1.25rem;
}

.checkout-btn {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.checkout-btn:hover {
    background-color: #4338CA;
}

.checkout-container {
    max-width: 800px;
    margin: 0 auto;
}

.checkout-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.submit-order-btn {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-order-btn:hover {
    background-color: #4338CA;
}

.order-summary-checkout {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.order-summary-checkout h3 {
    margin-bottom: 1rem;
}

.success-container {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.success-icon {
    color: var(--success-color);
    margin-bottom: 2rem;
}

.success-container h1 {
    color: var(--success-color);
    margin-bottom: 1rem;
}

.success-container p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item h3 {
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--text-light);
}

.contact-form-container {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.contact-form {
    margin-top: 1rem;
}

.about-content-section {
    max-width: 900px;
    margin: 0 auto 3rem;
}

.about-content-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.about-content-section p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.team-section {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.team-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.team-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.team-card:hover {
    transform: translateY(-5px);
}

.team-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.team-card h3 {
    padding: 1rem 1rem 0.5rem;
    font-size: 1.25rem;
}

.team-card p:first-of-type {
    color: var(--primary-color);
    font-weight: 600;
    padding: 0 1rem;
}

.team-card p:last-of-type {
    color: var(--text-light);
    padding: 0.5rem 1rem 1.5rem;
    font-size: 0.9rem;
}

.blog-hero {
    background: linear-gradient(135deg, var(--primary-color), #7C3AED);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.blog-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.blog-list {
    padding: 80px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.blog-card-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.blog-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.blog-card h2 a {
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.3s;
}

.blog-card h2 a:hover {
    color: var(--primary-color);
}

.blog-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s;
}

.read-more:hover {
    color: #4338CA;
}

.blog-post {
    padding: 80px 0;
}

.post-header {
    max-width: 800px;
    margin: 0 auto 2rem;
    text-align: center;
}

.post-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.post-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.post-featured-image {
    max-width: 1000px;
    margin: 0 auto 3rem;
}

.post-featured-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.post-content .lead {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.post-content h2 {
    font-size: 2rem;
    margin: 2.5rem 0 1rem;
    color: var(--primary-color);
}

.post-content p {
    margin-bottom: 1.5rem;
}

.post-footer {
    max-width: 800px;
    margin: 3rem auto;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tag {
    background-color: var(--bg-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.post-share h4 {
    margin-bottom: 1rem;
}

.share-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    margin-right: 0.5rem;
    transition: background-color 0.3s;
}

.share-btn:hover {
    background-color: #4338CA;
}

.related-posts {
    max-width: 1000px;
    margin: 4rem auto 0;
    padding: 2rem;
    background-color: var(--bg-color);
    border-radius: 12px;
}

.related-posts h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.related-post-card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.related-post-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.related-post-card a {
    text-decoration: none;
    color: var(--text-color);
}

.related-post-card h4 {
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

.related-post-card:hover h4 {
    color: var(--primary-color);
}

.related-post-card .post-date {
    font-size: 0.9rem;
    color: var(--text-light);
}

footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    margin-bottom: 1rem;
}

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

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--white);
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--text-color);
    color: var(--white);
    padding: 1.5rem;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-content p {
    flex: 1;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-accept, .btn-decline {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-accept:hover {
    background-color: #4338CA;
}

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

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

.cookie-link {
    color: var(--white);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .product-detail-container,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .cart-item {
        grid-template-columns: 80px 1fr;
        gap: 1rem;
    }

    .cart-item-price,
    .cart-item-quantity,
    .remove-btn {
        grid-column: 2;
    }

    .cookie-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }

    .btn-accept, .btn-decline {
        width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .post-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}