/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #2D3748;
    background-color: #ffffff;
}

/* Accessibility improvements */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Focus styles for better accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid #4299E1;
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #4299E1;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1001;
}

.skip-link:focus {
    top: 6px;
}

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(99, 179, 237, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo h1 {
    color: #4299E1;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 2px;
}

.logo span {
    color: #718096;
    font-size: 12px;
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: #2D3748;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #4299E1;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #4299E1;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #EBF8FF 0%, #E6FFFA 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    color: #2D3748;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    color: #4A5568;
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 15px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #4299E1, #3182CE);
    color: white;
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3182CE, #2C5282);
    box-shadow: 0 6px 16px rgba(66, 153, 225, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: #4299E1;
    border: 1px solid rgba(66, 153, 225, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(66, 153, 225, 0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(66, 153, 225, 0.25);
    border: 1px solid rgba(66, 153, 225, 0.1);
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    display: flex;
    justify-content: center;
    align-items: center;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.slider-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.indicator.active {
    background: #4299E1;
    border-color: #4299E1;
    transform: scale(1.2);
}

.indicator:hover {
    background: rgba(66, 153, 225, 0.7);
    border-color: rgba(66, 153, 225, 0.7);
}

.hero-main-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(66, 153, 225, 0.25);
    border: 1px solid rgba(66, 153, 225, 0.1);
}

.image-placeholder {
    width: 400px;
    height: 300px;
    background: linear-gradient(135deg, #4299E1, #38B2AC);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 48px;
    box-shadow: 0 20px 40px rgba(66, 153, 225, 0.25);
}

.image-placeholder p {
    margin-top: 20px;
    font-size: 16px;
    opacity: 0.9;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: white;
}

.services h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #2D3748;
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(66, 153, 225, 0.1);
    transition: all 0.2s ease;
}

.service-card:hover {
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.15);
    transform: translateY(-2px);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4299E1, #38B2AC);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    color: white;
    font-size: 32px;
}

.service-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 20px;
}

.service-card p {
    color: #4A5568;
    line-height: 1.6;
}

/* Product Info Section */
.product-info {
    padding: 100px 0;
    background: white;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.info-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.1);
    border: 1px solid rgba(66, 153, 225, 0.1);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(66, 153, 225, 0.15);
}

.info-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 25px;
    position: relative;
}

.info-card h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(135deg, #4299E1, #38B2AC);
    border-radius: 2px;
}

.info-card p {
    color: #4A5568;
    line-height: 1.6;
    margin-bottom: 20px;
}

.info-card ul {
    list-style: none;
    padding: 0;
}

.info-card li {
    padding: 12px 0;
    color: #4A5568;
    line-height: 1.6;
    position: relative;
    padding-left: 25px;
}

.info-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 12px;
    color: #4299E1;
    font-weight: bold;
    font-size: 16px;
}

/* Installation Guide Section */
.installation-guide {
    padding: 100px 0;
    background: white;
}

.installation-guide h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #2D3748;
    margin-bottom: 60px;
}

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

.installation-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.15);
    border: 1px solid rgba(66, 153, 225, 0.1);
}

.installation-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.installation-steps h3,
.installation-tips h3 {
    font-size: 24px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 25px;
    position: relative;
}

.installation-steps h3::after,
.installation-tips h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(135deg, #4299E1, #38B2AC);
    border-radius: 2px;
}

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
    border: 1px solid rgba(66, 153, 225, 0.1);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(66, 153, 225, 0.1);
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #4299E1, #38B2AC);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    margin-right: 20px;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 8px;
}

.step-content p {
    color: #4A5568;
    line-height: 1.6;
    margin: 0;
}

.installation-tips ul {
    list-style: none;
    padding: 0;
}

.installation-tips li {
    padding: 15px 0;
    color: #4A5568;
    line-height: 1.6;
    position: relative;
    padding-left: 30px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.installation-tips li:last-child {
    border-bottom: none;
}

.installation-tips li::before {
    position: absolute;
    left: 0;
    top: 15px;
    font-weight: bold;
    font-size: 16px;
}

.installation-tips li:contains("✓")::before {
    content: '✓';
    color: #4299E1;
}

.installation-tips li:contains("✗")::before {
    content: '✗';
    color: #E53E3E;
}

/* Configurator Section */
.configurator {
    padding: 100px 0;
    background: linear-gradient(135deg, #EBF8FF 0%, #E6FFFA 100%);
}

.configurator h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #2D3748;
    margin-bottom: 60px;
}

.configurator h2 .subtitle {
    font-size: 20px;
    font-weight: 400;
    color: #4A5568;
    display: block;
    margin-top: 10px;
}

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

.option-group {
    margin-bottom: 40px;
}

.option-group h3 {
    font-size: 20px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 20px;
}

.color-options {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.color-option-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.color-option {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    cursor: pointer;
    border: 3px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    background: white;
}

.color-option.active {
    border-color: #4299E1;
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.3);
}

.color-option:hover {
    transform: scale(1.1);
}

.panel-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 9px;
}

.color-name {
    text-align: center;
    min-width: 100px;
}

.color-name-ru {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 2px;
}

.color-name-en {
    display: block;
    font-size: 10px;
    color: #718096;
    font-style: italic;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}

.modal-content {
    position: relative;
    margin: 0;
    padding: 20px;
    width: auto;
    max-width: 90vw;
    max-height: 90vh;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-image {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10001;
}

.modal-close:hover,
.modal-close:focus {
    color: #000;
    background: white;
    transform: scale(1.1);
}

.modal-title {
    text-align: center;
    margin: 20px 0 15px 0;
    font-size: 24px;
    font-weight: 600;
    color: #2D3748;
}

.modal-subtitle {
    text-align: center;
    color: #718096;
    font-style: italic;
    margin-bottom: 20px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive modal */
@media (max-width: 1024px) {
    .modal-content {
        max-width: 95vw;
        max-height: 85vh;
    }
    
    .modal-image {
        max-height: 60vh;
    }
}

@media (max-width: 768px) {
    .modal.show {
        padding: 15px;
        align-items: center;
        justify-content: center;
    }
    
    .modal-content {
        width: 100%;
        max-width: 95vw;
        max-height: 80vh;
        padding: 15px;
        margin: 0;
    }
    
    .modal-image {
        width: 100%;
        max-height: 50vh;
    }
    
    .modal-title {
        font-size: 20px;
        margin: 15px 0 10px 0;
    }
    
    .modal-subtitle {
        font-size: 14px;
        margin-bottom: 15px;
    }
    
    .modal-close {
        top: 10px;
        right: 15px;
        width: 35px;
        height: 35px;
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .modal.show {
        padding: 10px;
        align-items: center;
        justify-content: center;
    }
    
    .modal-content {
        width: 100%;
        max-width: 98vw;
        max-height: 75vh;
        padding: 10px;
        border-radius: 15px;
        margin: 0;
    }
    
    .modal-image {
        width: 100%;
        max-height: 45vh;
        border-radius: 10px;
    }
    
    .modal-title {
        font-size: 18px;
        margin: 10px 0 8px 0;
    }
    
    .modal-subtitle {
        font-size: 12px;
        margin-bottom: 10px;
    }
    
    .modal-close {
        top: 8px;
        right: 12px;
        width: 30px;
        height: 30px;
        font-size: 20px;
    }
}

@media (max-width: 360px) {
    .modal.show {
        padding: 5px;
        align-items: center;
        justify-content: center;
    }
    
    .modal-content {
        width: 100%;
        max-width: 100vw;
        max-height: 70vh;
        padding: 8px;
        border-radius: 10px;
        margin: 0;
    }
    
    .modal-image {
        width: 100%;
        max-height: 40vh;
        border-radius: 8px;
    }
    
    .modal-title {
        font-size: 16px;
        margin: 8px 0 6px 0;
    }
    
    .modal-subtitle {
        font-size: 11px;
        margin-bottom: 8px;
    }
    
    .modal-close {
        top: 5px;
        right: 8px;
        width: 25px;
        height: 25px;
        font-size: 16px;
    }
}

/* Landscape orientation for mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .modal.show {
        align-items: center;
        justify-content: center;
    }
    
    .modal-content {
        max-height: 95vh;
        flex-direction: row;
        gap: 20px;
        align-items: center;
        margin: 0;
    }
    
    .modal-image {
        max-width: 60%;
        max-height: 80vh;
    }
    
    .modal-title,
    .modal-subtitle {
        margin: 0;
    }
}

.size-options {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.size-option {
    padding: 12px 24px;
    border: 1px solid rgba(66, 153, 225, 0.2);
    background: rgba(255, 255, 255, 0.9);
    color: #4299E1;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.size-option.active,
.size-option:hover {
    background: linear-gradient(135deg, #4299E1, #3182CE);
    color: white;
    border-color: #4299E1;
}

.price-display {
    margin-top: 20px;
    padding: 15px;
    background: white;
    border-radius: 12px;
    border: 1px solid rgba(66, 153, 225, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price-label {
    font-weight: 500;
    color: #2D3748;
}

.price-value {
    font-size: 24px;
    font-weight: 700;
    color: #4299E1;
}

.preview-info {
    width: 100%;
    height: 300px;
    background: white;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.1);
    border: 1px solid rgba(66, 153, 225, 0.1);
    text-align: center;
}

.preview-info p {
    margin-bottom: 15px;
    font-size: 16px;
    color: #4A5568;
    line-height: 1.6;
}

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

.preview-info p strong {
    color: #2D3748;
    font-weight: 600;
}

/* Prices Section */
.prices {
    padding: 100px 0;
    background: white;
}

.prices h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #2D3748;
    margin-bottom: 60px;
}

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

.price-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 2px solid transparent;
    position: relative;
    transition: all 0.2s ease;
}

.price-card:hover {
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.15);
    transform: translateY(-2px);
}

.price-card.featured {
    border-color: #4299E1;
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.2);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #4299E1, #38B2AC);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.price-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 20px;
}

.price {
    font-size: 32px;
    font-weight: 700;
    color: #4299E1;
    margin-bottom: 30px;
}

.price-card ul {
    list-style: none;
    margin-bottom: 30px;
}

.price-card li {
    padding: 10px 0;
    color: #4A5568;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.price-card li:last-child {
    border-bottom: none;
}

/* Social Media Icons in Contact Section */
.social-icons {
    display: flex;
    justify-content: flex-start;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.social-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    padding: 20px 25px;
    border-radius: 12px;
    background: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    min-width: 140px;
    position: relative;
    overflow: hidden;
}

.social-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.1) 0%, rgba(0, 136, 204, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-icon:hover::before {
    opacity: 1;
}

.social-icon:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.social-icon i {
    font-size: 2rem;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.social-icon span {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2D3748;
    position: relative;
    z-index: 1;
}

.social-icon.whatsapp i {
    color: #25D366;
}

.social-icon.telegram i {
    color: #0088cc;
}

.social-icon:hover i {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* Responsive design for social icons in contact section */
@media (max-width: 768px) {
    .social-icons {
        gap: 15px;
        margin-top: 25px;
    }
    
    .social-icon {
        padding: 15px 20px;
        min-width: 120px;
    }
    
    .social-icon i {
        font-size: 1.8rem;
    }
    
    .social-icon span {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .social-icons {
        justify-content: center;
        gap: 12px;
    }
    
    .social-icon {
        min-width: 110px;
        padding: 12px 15px;
    }
    
    .social-icon i {
        font-size: 1.6rem;
    }
    
    .social-icon span {
        font-size: 0.75rem;
    }
}

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

.contact h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #2D3748;
    margin-bottom: 60px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(66, 153, 225, 0.1);
}

.contact-item i {
    font-size: 24px;
    color: #4299E1;
    margin-right: 20px;
    width: 40px;
    text-align: center;
}

.contact-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #2D3748;
    margin-bottom: 5px;
}

.contact-item p {
    color: #4A5568;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(66, 153, 225, 0.1);
    border: 1px solid rgba(66, 153, 225, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2D3748;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4299E1;
    background: white;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

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

/* Footer */
.footer {
    background: #f8fafc;
    color: #2D3748;
    padding: 60px 0 20px;
    border-top: 1px solid rgba(66, 153, 225, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo h3 {
    color: #4299E1;
    font-size: 24px;
    margin-bottom: 5px;
}

.footer-logo p {
    color: #4A5568;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #4A5568;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #4299E1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(66, 153, 225, 0.1);
    color: #4A5568;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        display: none;
    }
    
    .hero {
        padding: 40px 0 60px;
        min-height: auto;
        align-items: flex-start;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-main-image {
        max-width: 90%;
        margin: 0 auto;
    }
    
    .hero-slider {
        max-width: 90%;
        margin: 0 auto;
        height: 300px;
    }
    
    .slide img {
        max-width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .configurator-content {
        grid-template-columns: 1fr;
    }
    
    .installation-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .services-grid,
    .prices-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    /* Уменьшаем отступы между секциями на мобильных */
    .services,
    .product-info,
    .installation-guide,
    .configurator,
    .contact {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-main-image {
        max-width: 100%;
        border-radius: 15px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .service-card,
    .price-card,
    .contact-form {
        padding: 30px 20px;
    }
    
    .installation-guide h2 {
        font-size: 28px;
    }
    
    .step {
        padding: 15px;
    }
    
    .step-number {
        width: 35px;
        height: 35px;
        font-size: 16px;
        margin-right: 15px;
    }
    
    /* Еще больше уменьшаем отступы на очень маленьких экранах */
    .services,
    .product-info,
    .installation-guide,
    .configurator,
    .contact {
        padding: 40px 0;
    }
    
    .hero {
        padding: 30px 0 40px;
    }

    .hero-slider {
        height: 250px;
    }

    .color-options {
        gap: 10px;
    }
    
    .color-option-wrapper {
        gap: 6px;
    }
    
    .color-option {
        width: 70px;
        height: 70px;
    }
    
    .panel-image {
        object-fit: cover;
    }
    
    .color-name {
        min-width: 80px;
    }
    
    .color-name-ru {
        font-size: 11px;
    }
    
    .color-name-en {
        font-size: 9px;
    }
}