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

:root {
    --primary-color: #1a1a2e;
    --accent-color: #ff6b35;
    --text-light: #f5f5f5;
    --text-dark: #2c3e50;
    --gray-light: #ecf0f1;
    --gray-medium: #95a5a6;
    --white: #ffffff;
    --wood-texture: #8b6f47;
    --neon-glow: rgba(255, 107, 53, 0.3);
    --border-radius: 12px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

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

/* Header Styles */
.header {
    background: var(--white);
    padding: 20px 0;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    display: block;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

/* Button Styles */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--neon-glow);
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #16213e 100%);
    color: var(--text-light);
    padding: 80px 0;
}

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

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 32px;
    color: rgba(245, 245, 245, 0.9);
    line-height: 1.5;
}

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

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

.hero-image-photo {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Section Styles */
.centered-section {
    text-align: center;
}

.centered-section .installation-content,
.centered-section .energy-content {
    text-align: left;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-medium);
    text-align: center;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Bundles Section */
.bundles {
    padding: 100px 0;
    background: var(--gray-light);
}

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

.bundle-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.bundle-card:hover {
    transform: translateY(-8px);
}

.bundle-icon {
    margin-bottom: 24px;
}

.bundle-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.bundle-card p {
    color: var(--gray-medium);
    line-height: 1.5;
}

/* Installation Section */
.installation {
    padding: 100px 0;
}

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

.installation-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.installation-text p {
    font-size: 1.2rem;
    color: var(--gray-medium);
    margin-bottom: 32px;
    line-height: 1.5;
}

.feature-list {
    list-style: none;
    margin-bottom: 40px;
}

.feature-list li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    color: var(--text-dark);
    font-weight: 500;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.installation-image-photo {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Energy Section */
.energy {
    padding: 100px 0;
    background: var(--gray-light);
}

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

.energy-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.energy-text p {
    font-size: 1.2rem;
    color: var(--gray-medium);
    margin-bottom: 32px;
    line-height: 1.5;
}

.energy-image-photo {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Security Section */
.security {
    padding: 100px 0;
}

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

.security-feature {
    text-align: center;
    padding: 40px 20px;
}

.security-icon {
    margin-bottom: 24px;
}

.security-feature h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.security-feature p {
    color: var(--gray-medium);
    line-height: 1.5;
}

/* Rental Section */
.rental {
    padding: 100px 0;
    background: var(--gray-light);
}

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

.rental-benefit {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.rental-benefit h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.rental-benefit p {
    color: var(--gray-medium);
    line-height: 1.5;
}

/* Why Us Section */
.why-us {
    padding: 100px 0;
}

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

.why-item {
    text-align: center;
    padding: 40px 20px;
}

.why-icon {
    margin-bottom: 24px;
}

.why-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.why-item p {
    color: var(--gray-medium);
    line-height: 1.5;
}

/* Products Section */
.products {
    padding: 100px 0;
    background: var(--gray-light);
}

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

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
}

.product-image-photo {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.product-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 24px 30px 16px;
}

.product-card p {
    color: var(--gray-medium);
    margin: 0 30px 24px;
    line-height: 1.5;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 0 30px 24px;
}

.product-actions {
    padding: 0 30px 30px;
}

.product-actions .btn-primary {
    width: 100%;
    justify-content: center;
}

/* Contacts Section */
.contacts {
    padding: 100px 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.contact-icon {
    flex-shrink: 0;
    padding: 12px;
    background: rgba(255, 107, 53, 0.1);
    border-radius: 50%;
}

.contact-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.contact-item p {
    color: var(--gray-medium);
    line-height: 1.5;
}

.contact-item a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

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

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 60px 0 20px;
}

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

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.footer-column h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--white);
}

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

.footer-column ul li {
    margin-bottom: 8px;
}

.footer-column ul li a {
    color: rgba(245, 245, 245, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: var(--accent-color);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-brand {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--white);
}

.footer-section p {
    color: rgba(245, 245, 245, 0.8);
    line-height: 1.5;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--white);
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: rgba(245, 245, 245, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid rgba(245, 245, 245, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(245, 245, 245, 0.6);
    font-size: 0.9rem;
}

/* Placeholder Images */
.placeholder-image {
    background: var(--gray-light);
    border: 2px dashed var(--gray-medium);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-medium);
    font-size: 1rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .installation-content,
    .energy-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .energy-content {
        grid-template-areas: "text" "image";
    }
    
    .energy-image {
        grid-area: image;
    }
    
    .energy-text {
        grid-area: text;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .bundle-grid,
    .security-grid,
    .why-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .bundles,
    .installation,
    .energy,
    .security,
    .rental,
    .why-us,
    .products,
    .contacts {
        padding: 60px 0;
    }
    
    .bundle-card,
    .rental-benefit,
    .contact-item {
        padding: 30px 20px;
    }
    
    .product-card h3 {
        margin: 20px 20px 12px;
    }
    
    .product-card p {
        margin: 0 20px 20px;
    }
    
    .product-price {
        margin: 0 20px 20px;
    }
    
    .product-actions {
        padding: 0 20px 20px;
    }
}