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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --success: #28a745;
    --warning: #ffc107;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 5px 20px rgba(0,0,0,0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--secondary-color);
    color: var(--white);
}

#cart-count {
    background: var(--accent-color);
    color: var(--white);
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.75rem;
    margin-left: 5px;
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

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

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

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: bold;
    transition: var(--transition);
}

.cta-button:hover {
    background: #c0392b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.features {
    padding: 5rem 0;
    background: var(--light-bg);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

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

.feature-box {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.feature-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--gray);
    font-size: 1.1rem;
}

.about-courses {
    padding: 5rem 0;
}

.about-courses h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

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

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.products {
    padding: 5rem 0;
    background: var(--light-bg);
}

.products h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

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

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: bold;
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.product-info p {
    color: var(--gray);
    margin-bottom: 1rem;
    line-height: 1.5;
}

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

.btn-primary {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    text-align: center;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    background: var(--gray);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    text-align: center;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    width: 100%;
}

.product-detail {
    padding: 5rem 0;
}

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

.product-detail-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.product-detail-info h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-rating {
    color: #f39c12;
    margin-bottom: 1rem;
}

.product-rating span {
    color: var(--gray);
    margin-left: 0.5rem;
}

.product-price-large {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.product-description h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 2rem 0 1rem;
}

.product-description ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.product-description li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.course-features {
    list-style: none !important;
    margin-left: 0 !important;
}

.course-features li {
    padding-left: 1.5rem;
}

.course-features i {
    color: var(--secondary-color);
    margin-right: 0.5rem;
}

.product-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.newsletter {
    padding: 5rem 0;
    background: var(--primary-color);
    color: var(--white);
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.newsletter-content p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.newsletter-form button {
    padding: 1rem 2rem;
}

#newsletter-message {
    margin-top: 1rem;
    font-weight: 500;
}

.history {
    padding: 5rem 0;
    background: var(--light-bg);
}

.history h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.history-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.history-content p {
    font-size: 1.1rem;
    line-height: 1.8;
}

footer {
    background: var(--primary-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-column h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-column p {
    opacity: 0.8;
    line-height: 1.6;
}

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

.footer-column a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-column a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.contact-info li {
    display: flex;
    align-items: start;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.contact-info i {
    color: var(--secondary-color);
    margin-top: 3px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

.cart-page,
.checkout-page {
    padding: 5rem 0;
    min-height: 60vh;
}

.cart-page h1,
.checkout-page h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.cart-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.cart-items {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 1.5rem;
    padding: 1.5rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.cart-item img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.cart-item-info h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.cart-item-price {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--secondary-color);
}

.cart-item-remove {
    color: var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.cart-item-remove:hover {
    color: #c0392b;
}

.cart-summary {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.cart-summary h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

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

.summary-row.total {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    border-bottom: none;
    margin-top: 1rem;
}

.cart-summary .btn-primary,
.cart-summary .btn-secondary {
    margin-top: 1rem;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.checkout-form-section {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.checkout-form-section h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

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

.checkout-summary {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.checkout-summary h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

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

.checkout-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--light-gray);
}

.summary-totals .summary-row {
    margin-top: 1rem;
}

.success-page {
    padding: 5rem 0;
    min-height: 60vh;
}

.success-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.success-icon {
    font-size: 5rem;
    color: var(--success);
    margin-bottom: 1rem;
}

.success-content h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.success-message {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 1rem;
}

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

.contact-page {
    padding: 5rem 0;
}

.contact-page h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.contact-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 3rem;
}

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

.contact-info-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.contact-info-box {
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: var(--border-radius);
    text-align: center;
}

.contact-info-box i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.contact-info-box h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.contact-form-section {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-form-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

#contact-form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    display: none;
}

#contact-form-message.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

#contact-form-message.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

.about-page {
    padding: 5rem 0;
}

.about-page h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
}

.about-intro {
    max-width: 900px;
    margin: 0 auto 4rem;
}

.about-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.mission-section {
    padding: 3rem 0;
    background: var(--light-bg);
    margin: 4rem 0;
    border-radius: var(--border-radius);
}

.mission-section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.value-box {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
}

.value-box i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.value-box h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.team-section {
    padding: 4rem 0;
}

.team-section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 3rem;
}

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

.team-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.team-card h3 {
    color: var(--primary-color);
    padding: 1rem 1.5rem 0.5rem;
    font-size: 1.25rem;
}

.team-card p {
    padding: 0 1.5rem 1.5rem;
    line-height: 1.6;
}

.team-card p:first-of-type {
    color: var(--secondary-color);
    font-weight: 500;
    padding-bottom: 0.5rem;
}

.achievements-section {
    padding: 4rem 0;
    background: var(--light-bg);
    border-radius: var(--border-radius);
}

.achievements-section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.achievement-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
}

.achievement-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.achievement-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.blog-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

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

.blog-list {
    padding: 5rem 0;
}

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

.blog-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.blog-card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

.blog-card-date {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--accent-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
}

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

.blog-card-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 1rem;
}

.blog-card-content h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.blog-card-content p {
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.blog-card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

.btn-text {
    color: var(--secondary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-text:hover {
    color: #2980b9;
}

.blog-post {
    padding: 5rem 0;
}

.post-header {
    max-width: 900px;
    margin: 0 auto 2rem;
}

.post-header h1 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.post-meta {
    display: flex;
    gap: 2rem;
    color: var(--gray);
    font-size: 1rem;
}

.post-featured-image {
    max-width: 1200px;
    margin: 0 auto 3rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.post-featured-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
}

.post-content .lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--gray);
    margin-bottom: 2rem;
}

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

.post-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 2rem 0 1rem;
}

.post-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.post-content ul,
.post-content ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.post-content li {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.post-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin: 3rem 0;
}

.post-share {
    border-top: 1px solid var(--light-gray);
    padding-top: 2rem;
    margin-top: 3rem;
}

.post-share h3 {
    margin-bottom: 1rem;
}

.share-buttons {
    display: flex;
    gap: 1rem;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--white);
    transition: var(--transition);
}

.share-btn.facebook {
    background: #3b5998;
}

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

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

.share-btn.email {
    background: var(--gray);
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.post-author {
    display: flex;
    gap: 2rem;
    align-items: center;
    max-width: 800px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: var(--border-radius);
}

.post-author img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.related-posts {
    max-width: 1200px;
    margin: 5rem auto 0;
}

.related-posts h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

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

.related-post-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.related-post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.related-post-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.related-post-card h3 {
    padding: 1rem 1.5rem 0.5rem;
}

.related-post-card h3 a {
    color: var(--primary-color);
}

.related-post-card h3 a:hover {
    color: var(--secondary-color);
}

.related-post-card p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray);
}

.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: 1.5rem;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 9999;
    display: none;
}

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

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
}

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

.cookie-content a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    z-index: 9999;
    display: none;
    min-width: 300px;
}

.notification.show {
    display: block;
    animation: slideIn 0.3s ease;
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--accent-color);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

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

    .features-grid,
    .products-grid,
    .team-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-grid,
    .cart-content,
    .checkout-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .product-actions {
        grid-template-columns: 1fr;
    }

    .newsletter-form {
        flex-direction: column;
    }

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

    .success-actions {
        flex-direction: column;
    }

    .post-header h1 {
        font-size: 2rem;
    }

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

    .post-author {
        flex-direction: column;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

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

    .features h2,
    .products h2,
    .about-courses h2 {
        font-size: 1.75rem;
    }

    .cart-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .notification {
        right: 10px;
        left: 10px;
        min-width: auto;
    }
}