:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #f59e0b;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #fbbf24;
    --text-color: #f9fafb;
    --text-light: #d1d5db;
    --bg-color: #111827;
    --bg-secondary: #1f2937;
    --border-color: #374151;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
}

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

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);
    transition: background-color 0.3s, color 0.3s;
}

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

.theme-toggle {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1000;
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.navbar {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 999;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

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

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

.cart-link {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

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

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.quote-section {
    padding: 3rem 0;
    background: var(--bg-secondary);
}

.quote-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 2rem;
    position: relative;
}

.quote-box i {
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.3;
}

.quote-box p {
    font-size: 1.5rem;
    font-style: italic;
    margin: 1rem 0;
    color: var(--text-color);
}

.quote-box span {
    display: block;
    color: var(--text-light);
    font-weight: 600;
}

.features {
    padding: 5rem 0;
}

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

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

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

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

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

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.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-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-light);
    font-weight: 600;
}

.about-courses {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

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

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

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

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

.badge-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.badge-item i {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.badge-item span {
    font-weight: 600;
    color: var(--text-color);
}

.products {
    padding: 5rem 0;
}

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

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

.product-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

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

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 1.25rem;
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.product-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-details {
    padding: 3rem 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.product-detail-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

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

.product-detail-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

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

.product-detail-description p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

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

.product-features {
    margin-bottom: 2rem;
}

.product-features h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.product-features ul {
    list-style: none;
}

.product-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
}

.product-features li i {
    color: var(--success-color);
    margin-right: 0.5rem;
}

.course-curriculum {
    padding: 3rem 0;
    background: var(--bg-secondary);
}

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

.curriculum-list {
    max-width: 800px;
    margin: 0 auto;
}

.curriculum-item {
    background: var(--bg-color);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.curriculum-item h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

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

.cart-page,
.checkout-page {
    padding: 3rem 0;
    min-height: 60vh;
}

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

.cart-empty {
    text-align: center;
    padding: 4rem 0;
}

.cart-empty i {
    font-size: 5rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.cart-empty p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

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

.cart-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 1rem;
    align-items: center;
}

.cart-item-image {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
}

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

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

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

.cart-item-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.cart-item-remove {
    background: var(--error-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: opacity 0.3s;
}

.cart-item-remove:hover {
    opacity: 0.8;
}

.cart-summary,
.order-summary {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    position: sticky;
    top: 100px;
}

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

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    color: var(--text-color);
}

.summary-row.total {
    border-top: 2px solid var(--border-color);
    margin-top: 1rem;
    padding-top: 1rem;
    font-size: 1.25rem;
    font-weight: 700;
}

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

.checkout-form {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
}

.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;
}

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

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

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

.success-page p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 1rem;
}

.contact-page {
    padding: 3rem 0;
}

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

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

.contact-info h2,
.contact-form h2 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

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

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

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

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

.contact-form {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
}

.about-page {
    padding: 3rem 0;
}

.about-hero {
    text-align: center;
    margin-bottom: 3rem;
}

.about-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.about-hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

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

.about-content h2 {
    font-size: 2rem;
    margin: 2rem 0 1rem;
    color: var(--text-color);
}

.about-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.team-section {
    padding-top: 3rem;
}

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

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

.team-member {
    text-align: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    transition: transform 0.3s;
}

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

.team-member img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
}

.team-member h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.team-member .role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.team-member p {
    color: var(--text-light);
    font-size: 0.95rem;
}

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

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

.blog-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.blog-listing {
    padding: 4rem 0;
}

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

.blog-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

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

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

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-category {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.blog-content {
    padding: 1.5rem;
}

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

.blog-content h2 {
    margin-bottom: 0.75rem;
}

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

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

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

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
}

.read-more:hover {
    gap: 1rem;
}

.blog-post {
    padding: 3rem 0;
}

.post-header {
    text-align: center;
    margin-bottom: 2rem;
}

.post-category {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.post-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.post-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.post-featured-image {
    margin-bottom: 3rem;
    border-radius: 12px;
    overflow: hidden;
}

.post-featured-image img {
    width: 100%;
    height: auto;
}

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

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

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

.post-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-light);
}

.post-cta {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
    border: 2px solid var(--primary-color);
}

.post-cta h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

.post-footer {
    max-width: 800px;
    margin: 3rem auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.post-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.post-tags a {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.875rem;
    transition: background 0.3s;
}

.post-tags a:hover {
    background: var(--primary-color);
    color: white;
}

.post-share {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.post-share a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 50%;
    color: var(--text-color);
    transition: all 0.3s;
}

.post-share a:hover {
    background: var(--primary-color);
    color: white;
}

.related-posts {
    max-width: 800px;
    margin: 3rem auto;
}

.related-posts h3 {
    margin-bottom: 2rem;
    color: var(--text-color);
}

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

.related-card {
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s;
}

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

.related-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.related-card h4 {
    padding: 1rem;
    margin-bottom: 0.5rem;
}

.related-card h4 a {
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.3s;
}

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

.related-date {
    padding: 0 1rem 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

footer {
    background: var(--bg-secondary);
    padding: 3rem 0 1rem;
    margin-top: 5rem;
}

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

.footer-col h4 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

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

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

.footer-col ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

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

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    border-radius: 50%;
    color: var(--text-color);
    transition: all 0.3s;
}

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

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.contact-info i {
    margin-top: 0.25rem;
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
}

.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    padding: 1.5rem;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    display: none;
}

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

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

.cookie-content p {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.cookie-content a {
    color: var(--primary-color);
}

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

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

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

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

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

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

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

    .post-footer {
        flex-direction: column;
        gap: 1.5rem;
    }

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