:root {
    --primary-color: #2c5aa0;
    --secondary-color: #1a4480;
    --accent-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --success-color: #10b981;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-gray: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

section {
    position: relative;
    overflow: hidden;
}

section:not(.hero) {
    margin-top: 2rem;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-color);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

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

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.logo-link:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.header__logo {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.logo-icon {
    width: 150px;
    height: auto;
    min-height: 55px;
    background: transparent;
    border: none;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
    transition: all 0.3s ease;
    padding: 0;
}

.logo-icon:hover {
    transform: scale(1.05);
}

.logo-icon img {
    width: 150px;
    height: auto;
    object-fit: contain;
    filter: none;
}

.logo-icon i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-dark);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.header__phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
}

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

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

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

.header__burger.active span:nth-child(2) {
    opacity: 0;
}

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

.header__nav {
    display: block;
}

.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding: 8rem 0 6rem;
    overflow: hidden;
    padding-top: 140px; /* Увеличенная компенсация для фиксированного header */
    margin-top: 0;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(135deg, 
            rgba(44, 90, 160, 0.85) 0%, 
            rgba(26, 68, 128, 0.8) 50%, 
            rgba(16, 185, 129, 0.75) 100%
        ),
        url('../assets/Вариант для фона стартовой страницы.png') center/cover;
    z-index: -1;
}

.hero__gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(44, 90, 160, 0.1) 0%, 
        rgba(26, 68, 128, 0.05) 50%, 
        rgba(16, 185, 129, 0.1) 100%);
}

.hero__particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(44, 90, 160, 0.1) 2px, transparent 2px),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.1) 2px, transparent 2px);
    background-size: 60px 60px;
    animation: particles 20s linear infinite;
    will-change: transform;
    backface-visibility: hidden;
}

@keyframes particles {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.hero__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.hero__title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.title-highlight {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero__stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 3;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5rem 1rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(44, 90, 160, 0.2);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-dark);
    font-weight: 600;
    text-shadow: none;
}

.equipment-showcase {
    position: relative;
    width: 350px;
    height: 350px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.equipment-item {
    position: absolute;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    animation: float 4s ease-in-out infinite;
    will-change: transform;
    backface-visibility: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.equipment-item--1 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 0s;
}

.equipment-item--2 {
    top: 10%;
    right: 10%;
    animation-delay: -1.33s;
}

.equipment-item--3 {
    bottom: 10%;
    left: 10%;
    animation-delay: -2.66s;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) scale(1); 
    }
    50% { 
        transform: translateY(-15px) scale(1.05); 
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn--primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.4);
}

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

.btn--secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.about {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    animation: pulse 12s ease-in-out infinite;
}

.about__content {
    display: grid;
    gap: 80px;
    position: relative;
    z-index: 1;
}

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

.about__text {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about__description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #64748b;
    margin-bottom: 20px;
}

.about__description:last-child {
    margin-bottom: 0;
}

.about__advantages {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about__advantages h3,
.about__products h3,
.about__services h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 30px;
    position: relative;
}

.about__advantages h3::after,
.about__products h3::after,
.about__services h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 2px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.advantage-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 12px;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.advantage-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 4px;
}

.advantage-content p {
    font-size: 0.9rem;
    color: #64748b;
    margin: 0;
}

.about__products,
.about__services {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 50px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.product-category {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
}

.product-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.category-icon {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 16px;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.category-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 6px;
}

.category-content p {
    font-size: 0.9rem;
    color: #64748b;
    margin: 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 16px;
    color: white;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.service-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.service-content p {
    font-size: 1rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 1024px) {
    .about__main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about__text,
    .about__advantages,
    .about__products,
    .about__services {
        padding: 30px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .about {
        padding: 80px 0;
    }
    
    .about__content {
        gap: 50px;
    }
    
    .about__text,
    .about__advantages,
    .about__products,
    .about__services {
        padding: 24px;
    }
    
    .about__advantages h3,
    .about__products h3,
    .about__services h3 {
        font-size: 1.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-category {
        padding: 20px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-item {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .about__description {
        font-size: 1rem;
    }
    
    .product-category,
    .service-item {
        flex-direction: column;
        text-align: center;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
        padding: 16px;
    }
}

.analyzers {
    padding: 4rem 0;
    background: var(--bg-light);
    position: relative;
    z-index: 1;
    margin-top: 2rem;
    clear: both;
    overflow: hidden;
}

.analyzers::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(
            135deg,
            rgba(44, 90, 160, 0.1) 0%,
            rgba(255, 255, 255, 0.3) 30%,
            rgba(255, 255, 255, 0.3) 70%,
            rgba(44, 90, 160, 0.1) 100%
        ),
        url('../assets/autoquant-bg.png') no-repeat center center;
    background-size: auto, contain;
    background-position: center, center;
    opacity: 0.4;
    z-index: 0;
}

.analyzers .container {
    position: relative;
    z-index: 2;
}

.analyzers .section-header {
    margin-bottom: 1.5rem;
    transform: translateY(-2rem);
}

.analyzers__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
    transform: translateY(-2rem);
}

.analyzer-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

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

.analyzer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.analyzer-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.analyzer-badge {
    background: var(--accent-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.analyzer-badge--new {
    background: var(--warning-color);
}

.analyzer-badge--premium {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.analyzer-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.analyzer-title::before {
    content: "";
    width: 4px;
    height: 24px;
    background: var(--accent-color);
    border-radius: 2px;
}

.analyzer-description {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    font-weight: 400;
}

.analyzer-specs {
    background: var(--bg-gray);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.spec-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.8rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.spec-row:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.spec-label {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    flex: 1;
    min-width: 40%;
}

.spec-value {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
    flex: 1;
    text-align: right;
    line-height: 1.4;
}

.analyzer-features {
    display: grid;
    gap: 0.8rem;
    margin-top: 1rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
    padding: 0.5rem 0;
}

.feature-item i {
    color: var(--accent-color);
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-item span {
    flex: 1;
}

/* Reagents Section */
.reagents {
    padding: 10rem 0;
    background: white;
    position: relative;
    z-index: 1;
    margin-top: 2rem;
    clear: both;
}

.reagents__content {
    display: flex;
    justify-content: center;
}

.reagents__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    width: 100%;
}

.reagents__benefits {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.benefit-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateX(10px);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

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

.reagents__image {
    text-align: center;
    margin: 2rem 0;
}

.reagents-showcase {
    max-width: 300px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 3px solid var(--border-color);
}

.reagents-showcase:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

@media (max-width: 768px) {
    .reagents-showcase {
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    .reagents__image {
        margin: 1.5rem 0;
    }
    
    .reagents-showcase {
        max-width: 100%;
        border-radius: var(--radius-md);
        margin: 0 1rem;
    }
}


.reagent-category {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.reagent-category:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.reagent-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.reagent-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.reagent-info p {
    color: var(--text-light);
    font-size: 0.85rem;
    line-height: 1.4;
}

.reagent-item {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.reagent-item:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.reagent-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.reagent-code {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    background: rgba(var(--primary-color), 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    display: inline-block;
}

.reagent-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.reagent-volume {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

.reagent-hidden {
    display: none;
}

.reagents__toggle {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem 0;
}

.reagents__toggle .btn {
    background: var(--bg-gray);
    color: var(--text-dark);
    border: 2px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.reagents__toggle .btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.reagents__categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.category-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.category-item:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.category-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.category-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.contacts {
    padding: 10rem 0;
    background: white;
    position: relative;
    z-index: 1;
    margin-top: 2rem;
    clear: both;
}

.contacts__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contacts__info {
    display: grid;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease;
}

.contact-card:hover {
    transform: translateX(10px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.contact-details p {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-details span {
    font-size: 0.9rem;
    color: var(--text-light);
}

.form-container {
    background: var(--bg-gray);
    padding: 2rem;
    border-radius: var(--radius-lg);
}

.form-container h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

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

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

.form-submit {
    width: 100%;
    margin-top: 1rem;
}

.footer {
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 5rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.05) 2px, transparent 2px),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.03) 2px, transparent 2px);
    background-size: 60px 60px;
    pointer-events: none;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.footer__brand {
    padding-right: 2rem;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.5rem;
}

.footer__logo .logo-icon {
    width: 150px;
    height: auto;
    min-height: 55px;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    padding: 8px;
}

.footer__logo .logo-icon:hover {
    transform: scale(1.05);
}

.footer__logo .logo-icon img {
    width: 140px;
    height: auto;
    object-fit: contain;
    filter: none;
}

.footer__logo .logo-text {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer__description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer__column h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: white;
    position: relative;
}

.footer__column h4::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-color);
}

.footer__column ul {
    list-style: none;
    display: grid;
    gap: 0.8rem;
}

.footer__column ul li {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.footer__column ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.footer__column ul li a::before {
    content: '→';
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.footer__column ul li a:hover {
    color: white;
    transform: translateX(5px);
}

.footer__column ul li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer__column ul li i {
    width: 16px;
    text-align: center;
    color: var(--accent-color);
}

.footer__column ul li a[href^="tel:"] {
    white-space: nowrap;
    min-width: max-content;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer__bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

@media (max-width: 1024px) {
    .analyzers::before {
        background: 
            linear-gradient(
                135deg,
                rgba(44, 90, 160, 0.15) 0%,
                rgba(255, 255, 255, 0.4) 30%,
                rgba(255, 255, 255, 0.4) 70%,
                rgba(44, 90, 160, 0.15) 100%
            ),
            url('../assets/autoquant-bg.png') no-repeat center center;
        background-size: auto, contain;
        background-position: center, center;
        opacity: 0.3;
    }
    
    .analyzers {
        padding: 8rem 0;
    }
    
    .analyzers__grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        max-width: 600px;
    }
    
    .about__principles {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }
    
    .principle-item {
        max-width: 500px;
        flex-direction: row;
        text-align: left;
        padding: 2rem;
    }
    
    .principle-icon {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
        margin-bottom: 0;
        margin-right: 1.5rem;
    }
}

@media (max-width: 640px) {
    .reagents__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .reagent-item {
        padding: 1rem;
    }
    
    .reagent-name {
        font-size: 0.8rem;
    }
    
    .reagent-code {
        font-size: 0.7rem;
    }
    
    .analyzers::before {
        background: 
            linear-gradient(
                135deg,
                rgba(44, 90, 160, 0.2) 0%,
                rgba(255, 255, 255, 0.5) 30%,
                rgba(255, 255, 255, 0.5) 70%,
                rgba(44, 90, 160, 0.2) 100%
            ),
            url('../assets/autoquant-bg.png') no-repeat center center;
        background-size: auto, contain;
        background-position: center, center;
        opacity: 0.25;
    }
    
    .analyzers {
        padding: 6rem 0;
    }
    
    .analyzers__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .reagents__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .about__principles {
        gap: 1.5rem;
    }
    
    .principle-item {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .principle-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
        margin-right: 0;
    }
    
    .principle-content h3 {
        font-size: 1.1rem;
    }
    
    .principle-content p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }
    
    .footer__column h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .footer__social-links {
        justify-content: center;
        gap: 1rem;
    }
    
    .footer__social-links a {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .reagents__grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .reagent-item {
        padding: 1rem;
    }
    
    .reagent-name {
        font-size: 0.85rem;
    }
    
    .reagent-code {
        font-size: 0.75rem;
    }
    
    .reagent-volume {
        font-size: 0.8rem;
    }
    
    .slider-btn {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .slider-btn--prev {
        left: 2px;
    }
    
    .slider-btn--next {
        right: 2px;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: 1rem;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .stat-item {
        padding: 1rem 0.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .reagents__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .reagent-category {
        padding: 1rem;
    }
    
    .reagent-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .equipment-showcase {
        width: 250px;
        height: 250px;
    }
    
    .equipment-item {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-gray);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

.service {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.service::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    animation: pulse 10s ease-in-out infinite;
}

.service__content {
    display: grid;
    gap: 80px;
    align-items: start;
}

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

.service__text {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.service__text h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 24px;
    position: relative;
}

.service__text h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 2px;
}

.service__text p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #64748b;
    margin-bottom: 20px;
}

.service__text p:last-child {
    margin-bottom: 0;
}

.service__features {
    display: grid;
    gap: 24px;
}

.service-feature {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.service-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 16px;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.feature-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.feature-content p {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.5;
    margin: 0;
}

.footer .logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.footer .logo-link:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.footer .logo-text {
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.footer .logo-icon {
    width: 150px;
    height: auto;
    min-height: 55px;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    padding: 8px;
    overflow: visible;
}

.footer .logo-icon:hover {
    transform: scale(1.05);
}

.footer .logo-icon img {
    width: 140px;
    height: auto;
    object-fit: contain;
    filter: none;
}

.partners {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    position: relative;
}

.partners::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="20" cy="20" r="1" fill="%23e2e8f0" opacity="0.5"/><circle cx="60" cy="40" r="1" fill="%23cbd5e1" opacity="0.3"/><circle cx="40" cy="80" r="1" fill="%23e2e8f0" opacity="0.4"/></svg>');
    animation: float 20s ease-in-out infinite;
}

.partners__grid {
    display: flex;
    flex-direction: row;
    gap: 30px;
    margin-top: 60px;
    justify-content: center;
    align-items: center;
}

.partner-row {
    background: var(--bg-white);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.partner-row::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: all 0.6s ease;
}

.partner-row:hover::before {
    left: 100%;
}

.partner-row:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.partners-image {
    max-width: 70%;
    width: 70%;
    height: auto;
    object-fit: contain;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.partner-row:hover .partners-image {
    transform: scale(1.02);
}

@media (max-width: 768px) {
    .partners {
        padding: 60px 0;
    }
    
    .partners__grid {
        flex-direction: column;
        gap: 20px;
        margin-top: 40px;
    }
    
    .partners-image {
        max-width: 80%;
        width: 80%;
    }
}

@media (max-width: 480px) {
    .partners__grid {
        flex-direction: column;
        gap: 15px;
    }
    
    .partners-image {
        max-width: 90%;
        width: 90%;
    }
}


@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    /* Header */
    .header__content {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .header__phone {
        order: 3;
        flex-basis: 100%;
        justify-content: center;
        margin-top: 10px;
    }
    
    /* Hero section */
    .hero {
        padding: 6rem 0 4rem;
        min-height: 80vh;
    }
    
    .hero__content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__subtitle {
        font-size: 1.1rem;
    }
    
    .hero__stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1.5rem;
    }
    
    /* Sections padding */
    .about, .analyzers, .reagents, .contacts, .service {
        padding: 6rem 0;
    }
    
    /* Section headers */
    .section-title {
        font-size: 2.2rem;
    }
    
    /* About section */
    .about__main {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    /* Analyzers */
    .analyzers__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* Reagents */
    .reagents__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    /* Contacts */
    .contacts__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    /* Service */
    .service__main {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    /* Footer */
    .footer__content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 10px;
    }
    
    /* Header - мобильная навигация */
    .header__content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 0.75rem 0;
    }
    
    .header__logo {
        flex-shrink: 0;
    }
    
    .logo-icon {
        width: 120px;
        min-height: 45px;
    }
    
    .logo-icon img {
        width: 120px;
    }
    
    .header__nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        z-index: 1001;
    }
    
    .header__nav.active {
        display: block;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
    }
    
    .nav-link {
        display: block;
        padding: 15px 20px;
        border-bottom: 1px solid #f1f5f9;
        font-size: 1.1rem;
    }
    
    .header__phone {
        display: none;
    }
    
    .header__burger {
        display: flex;
        z-index: 1002;
    }
    
    /* Hero */
    .hero {
        padding: 5rem 0 3rem;
        min-height: 70vh;
        padding-top: 120px;
    }
    
    .hero__title {
        font-size: 2rem;
        line-height: 1.1;
    }
    
    .hero__subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .hero__actions .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: 1rem;
        margin-top: 2rem;
    }
    
    .stat-item {
        padding: 1.2rem 1rem;
        max-width: 200px;
        margin: 0 auto;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    /* Sections */
    .about, .analyzers, .reagents, .contacts, .service {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* About */
    .about__text, .about__advantages, .service__text {
        padding: 25px;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        gap: 1rem;
    }
    
    /* Analyzers */
    .analyzer-card {
        padding: 1.5rem;
    }
    
    .analyzer-title {
        font-size: 1.3rem;
    }
    
    .spec-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .spec-value {
        text-align: left;
        font-size: 0.85rem;
    }
    
    /* Reagents */
    .reagents__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }
    
    .reagent-item {
        padding: 1rem 0.5rem;
        text-align: center;
    }
    
    .reagent-name {
        font-size: 0.85rem;
        line-height: 1.2;
    }
    
    .reagents-showcase {
        max-width: 100%;
        margin: 0 10px;
    }
    
    /* Service */
    .service-feature {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        gap: 1rem;
    }
    
    /* Contacts */
    .contact-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .form-container {
        padding: 1.5rem;
    }
    
    /* Footer */
    .footer {
        padding: 3rem 0 1.5rem;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer__brand {
        padding-right: 0;
    }
    
    .footer .logo-icon {
        width: 120px;
        min-height: 45px;
    }
    
    .footer .logo-icon img {
        width: 110px;
    }
    
    .footer__column ul li a {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 8px;
    }
    
    /* Header */
    .logo-icon {
        width: 100px;
        min-height: 40px;
    }
    
    .logo-icon img {
        width: 100px;
    }
    
    /* Hero */
    .hero {
        padding: 4rem 0 2rem;
        padding-top: 100px;
    }
    
    .hero__title {
        font-size: 1.7rem;
    }
    
    .hero__badge {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    /* Sections */
    .about, .analyzers, .reagents, .contacts, .service {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .section-badge {
        padding: 6px 15px;
        font-size: 0.8rem;
    }
    
    /* Reagents - одна колонка на очень маленьких экранах */
    .reagents__grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .reagent-item {
        padding: 1.2rem;
    }
    
    .reagent-name {
        font-size: 0.9rem;
    }
    
    /* Footer */
    .footer .logo-icon {
        width: 100px;
        min-height: 40px;
    }
    
    .footer .logo-icon img {
        width: 90px;
    }
}

@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
        padding: 0 40px;
    }
    
    .hero__title {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
}