/* Reset и базовые стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo-img {
    height: 60px;
    width: auto;
    max-width: 250px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-item {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 10px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
}

.nav-item:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li {
    list-style: none;
}

.submenu a {
    display: block;
    padding: 10px 20px;
    color: #333;
    text-decoration: none;
    transition: background 0.3s;
}

.submenu a:hover {
    background: #f8fafc;
    color: #2563eb;
}

.header-phone {
    font-weight: 600;
    font-size: 18px;
}

.phone-link {
    color: #2563eb;
    text-decoration: none;
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 150px 0 100px;
    text-align: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: #f59e0b;
    color: white;
}

.btn-primary:hover {
    background: #d97706;
    transform: translateY(-2px);
}

/* Sections */
.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #1f2937;
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8fafc;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 18px;
    line-height: 1.8;
    color: #4b5563;
}

/* Products Section */
.products {
    padding: 100px 0;
}

.products-grid {
    display: grid;
    gap: 60px;
}

.product-category h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 30px;
    color: #1f2937;
    text-align: center;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.product-item {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.product-item h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1f2937;
}

.product-item p {
    color: #6b7280;
    line-height: 1.6;
}

.category-description {
    text-align: center;
    font-size: 18px;
    color: #6b7280;
    margin-bottom: 30px;
}

.consumables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.consumable-item {
    background: #f8fafc;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
}

.consumable-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1f2937;
}

.consumable-item p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.5;
}

/* Objects Section */
.objects {
    padding: 100px 0;
    background: #f8fafc;
}

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

.object-item {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    font-size: 18px;
    color: #1f2937;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.object-item:hover {
    transform: translateY(-5px);
}

/* Certificates Section */
.certificates {
    padding: 100px 0;
}

.certificates-content {
    text-align: center;
}

.certificates-content p {
    font-size: 18px;
    color: #6b7280;
}

/* Partners Section */
.partners {
    padding: 100px 0;
    background: #f8fafc;
}

.partners-content {
    text-align: center;
}

.partners-content p {
    font-size: 18px;
    color: #6b7280;
}

/* Contact Section */
.contact {
    padding: 100px 0;
}

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

.contact-info h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1f2937;
}

.contact-info p {
    margin-bottom: 10px;
    color: #4b5563;
}

.contact-info a {
    color: #2563eb;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

.contact-form {
    background: #f8fafc;
    padding: 40px;
    border-radius: 12px;
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1f2937;
}

.contact-form p {
    color: #6b7280;
    margin-bottom: 30px;
}

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

.form input,
.form textarea {
    padding: 15px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form input:focus,
.form textarea:focus {
    outline: none;
    border-color: #3b82f6;
}

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

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-nav a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: white;
}

.footer-contact p {
    margin-bottom: 10px;
    color: #d1d5db;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Mobile Menu Styles */
.nav.active {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 20px;
}

.nav.active .nav-list {
    flex-direction: column;
    gap: 0;
}

.nav.active .nav-item {
    border-bottom: 1px solid #e5e7eb;
}

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

.nav.active .nav-link {
    display: block;
    padding: 15px 0;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Header scrolled state */
.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

/* Animation classes */
.product-item,
.object-item,
.consumable-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.product-item.animate-in,
.object-item.animate-in,
.consumable-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .logo-img {
        height: 45px;
        max-width: 180px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-nav ul {
        justify-content: center;
    }
    
    .objects-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .product-list {
        grid-template-columns: 1fr;
    }
    
    .consumables-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .about,
    .products,
    .objects,
    .certificates,
    .partners,
    .contact {
        padding: 60px 0;
    }
    
    .product-item,
    .contact-form {
        padding: 20px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
}