:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --dark-blue: #1e40af;
    --light-blue: #dbeafe;
    --gray: #6b7280;
    --light-gray: #f3f4f6;
    --dark-gray: #374151;
    --white: #ffffff;
    --text-color: #1f2937;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
}

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

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;
}

header {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-color) 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    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;
    text-decoration: none;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: bold;
}

.logo img {
    border-radius: 50%;
}

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

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

.nav-menu a:hover,
.nav-menu a.active {
    opacity: 0.8;
}

.cart-icon {
    position: relative;
    font-size: 1.2rem;
}

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

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

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

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

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--dark-blue);
    font-weight: 700;
}

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

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.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: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

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

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

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

.beginners-block {
    padding: 5rem 0;
    background: var(--light-blue);
}

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

.beginners-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.beginners-card h3 {
    color: var(--dark-blue);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.beginners-card p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.beginners-list {
    list-style: none;
    margin-bottom: 2rem;
}

.beginners-list li {
    padding: 0.5rem 0;
    font-size: 1.1rem;
}

.products {
    padding: 5rem 0;
}

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

.product-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

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

.product-card h3 {
    padding: 1rem;
    font-size: 1.25rem;
    color: var(--dark-blue);
}

.product-description {
    padding: 0 1rem;
    color: var(--gray);
    margin-bottom: 1rem;
}

.product-price {
    padding: 0 1rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.calculators {
    padding: 5rem 0;
    background: var(--light-gray);
}

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

.calculator-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.calculator-card h3 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.blog {
    padding: 5rem 0;
}

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

.blog-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.blog-card h3 {
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
}

.blog-date {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.faq {
    padding: 5rem 0;
    background: var(--light-gray);
}

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

.faq-item {
    background: var(--white);
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    color: var(--dark-blue);
    font-size: 1.2rem;
    user-select: none;
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray);
}

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

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

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--dark-blue);
}

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

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

footer {
    background: var(--dark-gray);
    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;
    color: var(--light-blue);
}

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

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

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

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

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

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background 0.3s;
}

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

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

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

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

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

.product-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.product-price-large {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 1rem 0;
}

.product-description-full h3 {
    color: var(--dark-blue);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.product-description-full ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.product-description-full li {
    margin-bottom: 0.5rem;
    color: var(--gray);
}

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

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

.cart-section {
    padding: 5rem 0;
    min-height: 50vh;
}

.cart-items {
    max-width: 900px;
    margin: 0 auto;
}

.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 2rem;
    padding: 1.5rem;
    background: var(--white);
    margin-bottom: 1rem;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    align-items: center;
}

.cart-item img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 5px;
}

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

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

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.quantity-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 5px;
    cursor: pointer;
}

.cart-item-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.remove-btn {
    background: var(--error-color);
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
}

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

.cart-summary {
    max-width: 400px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 10px;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.checkout-section {
    padding: 5rem 0;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.checkout-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
}

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

.order-summary {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 10px;
    height: fit-content;
}

.order-summary h3 {
    margin-bottom: 1.5rem;
    color: var(--dark-blue);
}

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

.order-total {
    display: flex;
    justify-content: space-between;
    margin-top: 1.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

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

.success-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--success-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 2rem;
}

.success-content h2 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

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

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

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

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.contact-icon {
    font-size: 2rem;
}

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

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-form-wrapper {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.contact-form-wrapper h3 {
    color: var(--dark-blue);
    margin-bottom: 1.5rem;
}

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

.about-intro {
    max-width: 800px;
    margin: 1rem auto 0;
    font-size: 1.2rem;
}

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

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

.mission-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.mission-item h3 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.team-section {
    padding: 5rem 0;
    background: var(--light-gray);
}

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

.team-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.team-card img {
    width: 100%;
    max-width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
}

.team-card h3 {
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
}

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

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

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

.achievement-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-gray);
    color: var(--white);
    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;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-content p {
    flex: 1;
}

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

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

.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--success-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 5px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    display: none;
}

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

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

@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .product-detail-grid,
    .checkout-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}