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

:root {
    --primary-color: #005a9c;
    --primary-dark: #004a7d;
    --secondary-color: #007ac1;
    --accent-color: #e5001f;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    margin: 0;
    padding: 0;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 90, 156, 0.3);
}

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

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

.btn-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
}

.btn-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.icon {
    font-style: normal;
}

/* Header */
.main-header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
}

.hero-header .main-header {
    position: relative;
    z-index: 10;
    background: transparent;
    box-shadow: none;
}

.hero-header .header-content {
    padding: 30px 0;
}

.hero-header .logo .logo-text {
    color: var(--white);
}

.hero-header .logo .logo-image {
    height: 50px;
    width: auto;
    display: block;
}

.hero-header .nav-link {
    color: var(--white);
}

.hero-header .nav-link:hover,
.hero-header .nav-link.active {
    color: var(--white);
}

.hero-header .nav-link::after {
    background-color: var(--white);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo .logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.main-nav .nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 16px;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    z-index: 1001;
    transform: translateX(-100%);
    transition: var(--transition);
    padding: 80px 20px;
}

.mobile-menu.active {
    transform: translateX(0);
}

.close-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 36px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-dark);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-nav-link {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 90vh;
    min-height: 540px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    margin: 0;
    padding: 0;
}

.hero-header {
    position: relative;
    z-index: 10;
    width: 100%;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 90vh;
    min-width: 100%;
    min-height: 90vh;
    object-fit: cover;
    z-index: 1;
}

.hero-video video {
    width: 100%;
    height: 90vh;
    object-fit: cover;
    min-width: 100%;
    min-height: 90vh;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 90, 156, 0.3) 0%, rgba(0, 122, 193, 0.2) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 5;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 0 20px;
    margin-top: auto;
    width: 100%;
    box-sizing: border-box;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 15px;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

.hero-text {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Stats Section */
.stats-section {
    padding: 0;
    background-color: var(--white);
    position: relative;
    z-index: 1;
    margin-top: 322px;
}

.stats-bg-image {
    position: absolute;
    top: -518px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1350px;
    height: auto;
    z-index: -1;
    pointer-events: none;
}

.stats-bg-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Company Section */
.company-section {
    padding: 0;
    background-color: var(--white);
    margin-top: -200px;
}

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

.company-title {
    font-size: 36px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: left;
}

.company-main {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.company-logo {
    flex-shrink: 0;
}

.company-logo img {
    width: 200px;
    height: auto;
}

.company-description {
    flex: 1;
    font-size: 20px;
    line-height: 1.8;
    color: var(--text-dark);
    margin: 0;
}

/* Products Section */
.products-section {
    padding: 80px 0;
    background-color: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--light-gray);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.product-image {
    margin-bottom: 20px;
}

.product-image .icon {
    font-size: 60px;
    color: var(--primary-color);
}

.product-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.product-description {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* Footer */
.footer {
    background-color: #1a1a1a;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-description {
    color: #999;
    margin-bottom: 15px;
    line-height: 1.6;
}

.footer-text {
    color: #999;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #999;
    font-size: 14px;
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-contact .contact-icon {
    margin-right: 10px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid #333;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright {
    color: #999;
    font-size: 14px;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.social-link {
    color: #999;
    font-size: 14px;
}

.social-link:hover {
    color: var(--white);
}

/* Page Header */
.page-header {
    background-color: var(--light-gray);
    padding: 60px 0;
    text-align: center;
}

.page-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.breadcrumb {
    font-size: 14px;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-light);
}

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

/* Products Filter */
.products-filter {
    background-color: var(--white);
    padding: 20px 0;
    border-bottom: 1px solid var(--light-gray);
}

.filter-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 4px;
    background-color: var(--light-gray);
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Product List */
.products-list {
    padding: 60px 0;
    background-color: var(--white);
}

.category-intro {
    text-align: center;
    margin-bottom: 60px;
}

.category-name {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.category-desc {
    color: var(--text-light);
    font-size: 16px;
}

.product-item {
    display: flex;
    align-items: center;
    padding: 30px;
    background-color: var(--white);
    border-bottom: 1px solid var(--light-gray);
    transition: var(--transition);
}

.product-item:hover {
    background-color: var(--light-gray);
}

.product-item-image {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 30px;
}

.product-item-image .icon {
    font-size: 48px;
    color: var(--primary-color);
}

.product-item-content {
    flex: 1;
}

.product-category {
    display: block;
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.product-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.product-short-desc {
    color: var(--text-light);
    line-height: 1.6;
}

.no-products {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    font-size: 18px;
}

/* Product Detail */
.product-detail {
    padding: 60px 0;
    background-color: var(--white);
}

.product-detail-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.product-detail-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.product-detail-image {
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-gray);
    border-radius: 8px;
}

.product-detail-image .icon {
    font-size: 120px;
    color: var(--primary-color);
}

.product-detail-info .product-category {
    display: block;
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.product-detail-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.product-short-desc {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-features {
    margin-bottom: 30px;
}

.product-features h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.product-features ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

.product-features li {
    display: flex;
    align-items: center;
    color: var(--text-light);
}

.product-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: 700;
    margin-right: 10px;
}

.product-detail-full {
    background-color: var(--white);
    padding: 40px;
    border-radius: 8px;
}

.product-detail-full h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.product-full-desc {
    color: var(--text-light);
    line-height: 1.8;
}

.product-full-desc h2,
.product-full-desc h3 {
    color: var(--text-dark);
    margin-top: 20px;
    margin-bottom: 15px;
}

.product-full-desc p {
    margin-bottom: 15px;
}

.product-full-desc ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.product-full-desc li {
    margin-bottom: 8px;
}

.product-detail-specs {
    background-color: var(--light-gray);
    padding: 40px;
    border-radius: 8px;
}

.product-detail-specs h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.specs-table {
    overflow-x: auto;
}

/* Related Products */
.related-products {
    padding: 60px 0;
    background-color: var(--light-gray);
}

.related-products h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 40px;
}

/* Contact Section */
.contact-section {
    padding: 60px 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    font-size: 24px;
    color: var(--primary-color);
    min-width: 30px;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 5px;
}

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

.map-placeholder {
    width: 100%;
    height: 300px;
    background-color: var(--light-gray);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.map-placeholder p {
    font-size: 18px;
    font-weight: 600;
}

.map-placeholder small {
    font-size: 14px;
    margin-top: 10px;
}

.contact-form-container {
    background-color: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 90, 156, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.alert {
    padding: 15px 20px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* About Section */
.about-section {
    padding: 60px 0;
    background-color: var(--white);
}

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

.about-text {
    text-align: center;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin: 60px 0;
}

.mission-item,
.vision-item {
    padding: 30px;
    background-color: var(--light-gray);
    border-radius: 8px;
}

.mission-item h3,
.vision-item h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.stat-box {
    text-align: center;
    padding: 20px;
    background-color: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 8px;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-text {
    display: block;
    font-size: 14px;
    color: var(--text-light);
}

/* Customers Section */
.customers-section {
    padding: 80px 0;
    background-color: var(--white);
}

.customers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.customer-item {
    padding: 40px;
    background-color: var(--light-gray);
    border-radius: 8px;
    text-align: center;
    color: var(--text-light);
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition);
}

.customer-item:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 24px;
    }
    
    .hero-text {
        font-size: 18px;
    }
    
    .product-detail-main {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .main-nav .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-text {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stats-grid {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .mission-vision {
        grid-template-columns: 1fr;
    }
    
    .product-item {
        flex-direction: column;
        text-align: center;
    }
    
    .product-item-image {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        min-height: 450px;
        max-height: 63vh;
    }
    
    .hero-video,
    .hero-video video {
        min-height: 63vh;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .page-title {
        font-size: 28px;
    }
    
    .products-section,
    .features-section,
    .cta-section,
    .about-section,
    .customers-section {
        padding: 40px 0;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .stat-label {
        font-size: 14px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}