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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px 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(--bg-color);
}

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

.navbar {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

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

.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;
    position: relative;
}

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

.cart-link {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cart-count {
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    padding: 2px 8px;
    font-size: 0.8rem;
    font-weight: 700;
}

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

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

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

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

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

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

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

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

.features {
    padding: 80px 0;
    background: var(--bg-secondary);
}

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

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

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

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 1.1rem;
}

.about-courses {
    padding: 80px 0;
    background: white;
}

.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 {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    text-align: justify;
}

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

.badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.badge i {
    font-size: 3rem;
    color: var(--primary-color);
}

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

.catalog {
    padding: 80px 0;
    background: var(--bg-secondary);
}

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

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

.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

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

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

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

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.product-actions .btn {
    flex: 1;
    text-align: center;
}

.admin-panel-preview {
    padding: 80px 0;
    background: white;
}

.admin-panel-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.admin-panel-preview > p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.admin-frame {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--bg-secondary);
}

.admin-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.2rem;
}

.admin-user i {
    font-size: 2rem;
}

.admin-content {
    display: flex;
    min-height: 400px;
}

.admin-sidebar {
    width: 250px;
    background: white;
    padding: 1.5rem 0;
    border-right: 1px solid var(--border-color);
}

.admin-menu-item {
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-color);
}

.admin-menu-item:hover,
.admin-menu-item.active {
    background: var(--bg-secondary);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

.admin-main {
    flex: 1;
    padding: 2rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-box {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.stat-box i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

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

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.view-counter {
    padding: 40px 0;
    background: var(--bg-secondary);
}

.counter-box {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 1.3rem;
    max-width: 500px;
    margin: 0 auto;
}

.counter-box i {
    color: var(--primary-color);
    font-size: 2rem;
}

#viewCount {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.footer {
    background: var(--text-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

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

.footer-section ul li a:hover {
    color: white;
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255, 255, 255, 0.8);
}

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

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s;
    text-decoration: none;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    padding: 1.5rem;
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.cookie-consent.show {
    transform: translateY(0);
}

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

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

.cookie-text p {
    color: var(--text-light);
    line-height: 1.6;
}

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

.cookie-buttons {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

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

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

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

.product-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.5rem;
}

.stars {
    color: #fbbf24;
}

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

.product-description {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.product-features {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    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;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.product-features li i {
    color: var(--success-color);
}

.cart-page {
    padding: 80px 0;
    background: var(--bg-secondary);
    min-height: 60vh;
}

.cart-container {
    max-width: 1000px;
    margin: 0 auto;
}

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

.cart-items {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.cart-item {
    display: flex;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image {
    width: 150px;
    height: 150px;
    flex-shrink: 0;
}

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

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

.cart-item-details h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.cart-item-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.quantity-control button {
    width: 35px;
    height: 35px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

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

.quantity-control input {
    width: 60px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem;
    font-size: 1rem;
}

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

.remove-item:hover {
    background: #dc2626;
}

.cart-summary {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.cart-summary h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-row.total {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    border-bottom: none;
    margin-top: 1rem;
}

.checkout-btn {
    width: 100%;
    margin-top: 1.5rem;
    padding: 1rem;
    font-size: 1.1rem;
}

.empty-cart {
    text-align: center;
    padding: 4rem 2rem;
}

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

.empty-cart h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

.checkout-page {
    padding: 80px 0;
    background: var(--bg-secondary);
    min-height: 70vh;
}

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

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

.checkout-form {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-section {
    margin-bottom: 2rem;
}

.form-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

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

.order-summary-checkout {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.order-summary-checkout h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.submit-order {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
}

.success-page {
    padding: 80px 0;
    background: var(--bg-secondary);
    min-height: 60vh;
}

.success-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background: white;
    padding: 4rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.success-icon {
    width: 100px;
    height: 100px;
    background: var(--success-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 3rem;
    color: white;
}

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

.success-container p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-page {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.contact-container {
    max-width: 1000px;
    margin: 0 auto;
}

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

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

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

.contact-info-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-info-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

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

.contact-info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.2rem;
}

.contact-info-item div h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--text-color);
}

.contact-info-item div p {
    color: var(--text-light);
    line-height: 1.6;
}

.contact-form-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-form-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

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

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

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

.about-intro {
    text-align: center;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 4rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-mission {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 4rem;
}

.about-mission h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    text-align: center;
}

.about-mission p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

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

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

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

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

.team-member img {
    width: 100%;
    max-width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 4px solid var(--primary-color);
}

.team-member h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

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

.team-member p {
    color: var(--text-light);
    line-height: 1.6;
}

.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    transform: translateX(400px);
    transition: transform 0.3s;
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

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

.notification i {
    font-size: 1.5rem;
    color: var(--success-color);
}

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

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

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

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

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

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

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

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

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

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

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

    .cookie-buttons .btn {
        width: 100%;
    }

    .admin-content {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .cart-item {
        flex-direction: column;
    }

    .cart-item-image {
        width: 100%;
        height: 200px;
    }
}