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

/* CSS Custom Properties */
:root {
    /* Colors */
    --primary-color: #8b5cf6;
    --primary-color-dark: #7c3aed;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background-light: #f8fafc;
    --background-white: #ffffff;
    --border-light: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    
    /* Glass Effects */
    --glass-color: rgba(139, 92, 246, 0.15);
    --glass-color-border: rgba(139, 92, 246, 0.3);
    --glass-white: rgba(255, 255, 255, 0.95);
    --glass-white-border: rgba(255, 255, 255, 0.3);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-primary: 0 6px 20px rgba(139, 92, 246, 0.4);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

/* Base Elements */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: 100vh;
}

.container {
    margin: 0 auto;
    padding: var(--container-padding);
    position: relative;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

h3 i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Common Glass Effect */
.glass-effect {
    background: var(--glass-color);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
}

.glass-white {
    background: var(--glass-white);
    border: 1px solid var(--glass-white-border);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
}

/* Buttons Base */
.btn {
    display: inline-block;
    padding: 20px 40px;
    text-decoration: none;
    border-radius: 16px;
    font-weight: 700;
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    font-size: 1.3rem;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    border: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary Button */
.btn--primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn--primary::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;
}

.btn--primary:hover {
    background: linear-gradient(135deg, var(--primary-color-dark) 0%, var(--primary-color) 100%);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(139, 92, 246, 0.5);
}

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

/* Secondary Button */
.btn--secondary {
    background: var(--glass-color);
    border: 2px solid var(--glass-color-border);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    color: white;
    box-sizing: border-box;
}

.btn--secondary:hover {
    background: var(--glass-color);
    border-color: var(--glass-color-border);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

/* Outline Button */
.btn-outline {
    background: rgba(37, 99, 235, 0.05);
    color: #2563eb;
    border: 2px solid rgba(37, 99, 235, 0.2);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.15);
}

/* Large Button */
.btn-large {
    padding: 20px 40px;
    font-size: 1.4rem;
    font-weight: 700;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    max-width: 600px;
    width: 100%;
    white-space: nowrap;
}

.btn-large:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.4);
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: 1px solid var(--glass-white-border);
    border-radius: var(--border-radius-lg);
    position: fixed;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 1200px;
    z-index: 1000;
    transition: all var(--transition-slow);
}

.header:hover {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(35px) saturate(200%);
    -webkit-backdrop-filter: blur(35px) saturate(200%);
    box-shadow: 
        0 15px 50px rgba(0, 0, 0, 0.20),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 2rem;
}

/* Burger (mobile menu) */
.burger {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    margin-left: 8px;
}

.burger span {
    position: absolute;
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.burger span:nth-child(1) { transform: translateY(-7px); }
.burger span:nth-child(2) { transform: translateY(0); }
.burger span:nth-child(3) { transform: translateY(7px); }

.header.menu-open .burger span:nth-child(1) { transform: rotate(45deg); }
.header.menu-open .burger span:nth-child(2) { opacity: 0; }
.header.menu-open .burger span:nth-child(3) { transform: rotate(-45deg); }

/* Logo */
.logo a {
    text-decoration: none;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.logo a:hover {
    color: #1e40af;
}

.logo-img {
    height: 100px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    display: block;
}

.footer-logo-img {
    height: 200px;
    width: auto;
    max-width: 250px;
    object-fit: contain;
    margin-bottom: 1rem;
}

/* Navigation */
.nav ul {
    display: flex;
    list-style: none;
    gap: 0;
    margin: 0;
    padding: 0;
}

.nav li {
    position: relative;
}

.nav a {
    text-decoration: none;
    color: #171718;
    font-weight: 600;
    font-size: 1.25rem;
    padding: 0.75rem 1rem;
    transition: all var(--transition-normal);
    position: relative;
    display: block;
}

.nav a:hover {
    color: var(--primary-color);
    transform: translateY(-2px) scale(1.05);
}

.nav a.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -1.2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Remove underlines from FAQ and Контакты links */
.nav a[href*="faq"],
.nav a[href*="contacts"] {
    text-decoration: none !important;
}

.nav a[href*="faq"]:hover,
.nav a[href*="contacts"]:hover {
    text-decoration: none !important;
}

.nav a[href*="faq"].active,
.nav a[href*="contacts"].active {
    text-decoration: none !important;
}

.nav a[href*="faq"].active::after,
.nav a[href*="contacts"].active::after {
    display: none;
}

/* Header Phone */
.header-phone a {
    text-decoration: none;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-primary);
    border: none;
    position: relative;
    overflow: hidden;
}

.header-phone a i {
    font-size: 1rem;
    color: white;
    display: inline-block !important;
    font-family: 'Font Awesome 6 Free' !important;
    font-weight: 900 !important;
}

.header-phone a::after {
    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;
}

.header-phone a:hover {
    background: linear-gradient(135deg, var(--primary-color-dark) 0%, var(--primary-color) 100%);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 12px 30px rgba(139, 92, 246, 0.5);
}

.header-phone a:hover::after {
    left: 100%;
}

/* Responsive header and mobile nav */
@media (max-width: 1024px) {
    .header {
        left: 0;
        transform: none;
        width: 100%;
        max-width: none;
        border-radius: 12px;
        top: 10px;
        right: 0;
    }

    .header-content {
        padding: 0.5rem 1rem;
    }

    .header-phone { display: none; }
    .burger { display: inline-flex; }

    .nav {
        display: none;
        position: absolute;
        top: calc(100% + 10px);
        left: 10px;
        right: 10px;
        background: #ffffff;
        border-radius: 16px;
        box-shadow: var(--shadow-lg);
        padding: 8px;
        border: 1px solid var(--glass-white-border);
        z-index: 1001;
    }

    .nav ul {
        flex-direction: column;
    }

    .nav a {
        padding: 12px 14px;
        font-size: 1rem;
    }

    .header.menu-open .nav { display: block; }

    /* Hero sizing for tablet */
    .hero { padding: 240px 0; }
    .hero-title { font-size: 3rem; }
}

@media (max-width: 768px) {
    .header {
        width: calc(100% - 20px);
        left: 10px;
        right: 10px;
        top: 10px;
        border-radius: 15px;
    }
    
    .logo-img {
        height: 64px;
        max-width: 100px;
    }
    
    .footer-logo-img {
        height: 40px;
        max-width: 200px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .hero-cta, .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .feature {
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
    
    .feature-icon {
        width: 2rem;
        height: 2rem;
        font-size: 1.5rem;
    }
    
    .feature-icon i {
        font-size: 1.3rem;
    }
    
    .btn {
        padding: 16px 32px;
        font-size: 1.2rem;
    }
    
    .form__row {
        grid-template-columns: 1fr;
    }
    
    .products__grid, .products-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-carousel__container { 
        margin: 0 16px; 
        width: calc(100% - 32px);
    }
    .review { 
        padding: 1.5rem 1rem; 
        overflow: hidden;
    }
    .review__content { 
        font-size: 1rem; 
        padding: 0 0.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    .carousel-arrow { display: none; }
}

@media (max-width: 480px) {
    .header {
        width: calc(100% - 15px);
        left: 7.5px;
        right: 7.5px;
        top: 8px;
        border-radius: 12px;
    }
    
    .header-content {
        padding: 0.4rem 0.8rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 160px 0 80px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form {
        padding: 2rem 1.5rem;
    }
    
    .whatsapp-widget {
        bottom: 20px;
        right: 20px;
    }
    
    .reviews-carousel__container {
        margin: 0 60px;
        width: calc(100% - 120px);
    }
    
    .carousel-arrow {
        width: 45px;
        height: 45px;
    }
    
    .carousel-arrow i {
        font-size: 0.9rem;
    }
    
    .whatsapp-widget a {
        width: 65px;
        height: 65px;
    }
    
    .footer {
        padding: 1rem 0 0.75rem;
    }
    
    .footer__content {
        gap: 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .footer__section h3,
    .footer__section h4 {
        margin-bottom: 0.4rem;
        font-size: 0.95rem;
    }
    
    .footer__section a,
    .footer__section p {
        font-size: 0.85rem;
    }
    
    .footer__section ul li {
        margin-bottom: 0.25rem;
    }
    
    .footer__bottom {
        padding-top: 0.75rem;
        font-size: 0.8rem;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color-dark) 0%, #3730a3 50%, var(--primary-color) 100%);
    color: white;
    padding: 420px 0;
    text-align: center;
}

.hero-title {
    font-size: 4.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: white;
}

.hero-subtitle {
    font-size: 2rem;
    margin-bottom: 2rem;
    opacity: 1;
    color: white;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.85;
    max-width: 700px;
    line-height: 1.7;
    color: white;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-bottom: 3.5rem;
    flex-wrap: wrap;
}

.hero-cta, .hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Features */
.feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2rem;
    border-radius: 30px;
    transition: all var(--transition-normal);
    background: var(--glass-color);
    border: 1px solid var(--glass-color-border);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    font-size: 1.25rem;
    font-weight: 600;
}

.feature:hover {
    background: var(--glass-color);
    border-color: var(--glass-color-border);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
}

.feature-icon {
    font-size: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
}

.feature-icon i {
    font-size: 1.6rem;
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: 3rem;
    margin-top: 2rem;
    font-size: 2.8rem;
    color: var(--text-primary);
    font-weight: 700;
    position: relative;
    padding-bottom: 1.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
    border-radius: 3px;
}

/* About Section - Bento Design */
.about {
    padding: var(--section-padding);
    background-color: var(--background-light);
    position: relative;
}



.about-header {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.about-subtitle {
    font-size: 1.4rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.about-bento {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(3, minmax(200px, auto));
    gap: 1.5rem;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Bento Card Base Styles */
.bento-card {
    background: var(--glass-white);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bento-card:hover::before {
    opacity: 1;
}

.bento-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
}

/* Bento Card Icon */
.bento-card__icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.bento-card__icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.3) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.bento-card:hover .bento-card__icon::before {
    transform: translateX(100%);
}

.bento-card:hover .bento-card__icon {
    transform: rotate(10deg) scale(1.1);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.4);
}

.bento-card__icon i {
    font-size: 24px;
    color: white;
    transition: all 0.3s ease;
}

.bento-card:hover .bento-card__icon i {
    transform: scale(1.2);
}

/* Bento Card Content */
.bento-card__content h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    transition: color 0.3s ease;
}

.bento-card:hover .bento-card__content h3 {
    color: var(--primary-color);
}

.bento-card__content p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1.05rem;
}

/* Bento Grid Layout */
.bento-card--main {
    grid-column: 1 / 7;
    grid-row: 1 / 3;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(59, 130, 246, 0.12) 100%);
    display: flex;
    flex-direction: column;
}

.bento-card--quality {
    grid-column: 7 / 10;
    grid-row: 1 / 2;
}

.bento-card--support {
    grid-column: 10 / 13;
    grid-row: 1 / 2;
}

.bento-card--innovation {
    grid-column: 7 / 10;
    grid-row: 2 / 3;
}

/* Warranty Card - Inverted L Shape in Top Right */
.bento-card--warranty {
    grid-column: 10 / 13;
    grid-row: 2 / 4;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(5, 150, 105, 0.05) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.bento-card--delivery {
    grid-column: 1 / 7;
    grid-row: 3 / 4;
}

.bento-card--safety {
    grid-column: 7 / 10;
    grid-row: 3 / 4;
}

.bento-card--warranty .bento-card__icon {
    align-self: center;
    background: linear-gradient(135deg, #10b981 0%, #047857 100%);
    margin-bottom: 1.5rem;
}

.bento-card--warranty .bento-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

.bento-card--warranty .bento-card__content h3 {
    margin-top: 0;
    margin-bottom: 4rem;
}

/* Warranty card specific hover effect with green shadow */
.bento-card--warranty:hover .bento-card__icon {
    transform: rotate(10deg) scale(1.1);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
}

/* Stats for Main Card - Big Advantages */
.bento-card--main .bento-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.bento-card--main .bento-card__content > p {
    flex: 1;
    font-size: 1.25rem;
    line-height: 1.7;
    font-weight: 500;
    color: var(--text-secondary); 
}

.bento-card__stats {
    display: flex;
    gap: 3rem;
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    justify-content: center;
}

.stat {
    text-align: center;
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 4rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
    text-shadow: 0 2px 4px rgba(139, 92, 246, 0.3);
}

.stat-label {
    display: block;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-weight: 600;
}

/* Quality Badges */
.quality-badges {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.badge {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Support Time */
.support-time {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

/* Delivery Regions */
.delivery-regions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.delivery-regions span {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Warranty Period */
.warranty-period {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-top: 1rem;
    justify-content: center;
}

.warranty-years {
    font-size: 4rem;
    font-weight: 800;
    color: #10b981;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.warranty-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .about-bento {
        grid-template-columns: repeat(8, 1fr);
        grid-template-rows: repeat(4, minmax(180px, auto));
    }
    
    .bento-card--main {
        grid-column: 1 / 6;
        grid-row: 1 / 3;
    }
    
    .bento-card--quality {
        grid-column: 6 / 9;
        grid-row: 1 / 2;
    }
    
    .bento-card--support {
        grid-column: 6 / 9;
        grid-row: 2 / 3;
    }
    
    .bento-card--innovation {
        grid-column: 1 / 5;
        grid-row: 3 / 4;
    }
    
    .bento-card--delivery {
        grid-column: 1 / 5;
        grid-row: 4 / 5;
    }
    
    .bento-card--safety {
        grid-column: 5 / 9;
        grid-row: 4 / 5;
    }
    
    /* Warranty keeps L-shape on tablet */
    .bento-card--warranty {
        grid-column: 5 / 9;
        grid-row: 3 / 5;
    }
    
    /* Main card stats on tablet */
    .bento-card__stats {
        gap: 2.5rem;
        padding-top: 1rem;
    }
    
    .stat-number {
        font-size: 3.5rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    /* Main card text on tablet */
    .bento-card--main .bento-card__content > p {
        font-size: 1.15rem;
        line-height: 1.6;
    }
}

@media (max-width: 768px) {
    .about-bento {
        grid-template-columns: repeat(4, 1fr);
        grid-template-rows: repeat(7, minmax(160px, auto));
        gap: 1rem;
    }
    
    .bento-card {
        padding: 1.5rem;
    }
    
    .bento-card--main {
        grid-column: span 4;
        grid-row: span 2;
    }
    
    .bento-card--quality,
    .bento-card--support,
    .bento-card--innovation,
    .bento-card--delivery,
    .bento-card--safety {
        grid-column: span 4;
        grid-row: span 1;
    }
    
    /* Warranty card takes 2 rows on mobile for better proportion */
    .bento-card--warranty {
        grid-column: span 4;
        grid-row: span 2;
    }
    
    .bento-card__stats {
        gap: 2rem;
        padding-top: 1rem;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    .warranty-years {
        font-size: 3rem;
    }
    
    /* Main card text on mobile */
    .bento-card--main .bento-card__content > p {
        font-size: 1.1rem;
        line-height: 1.6;
    }
}

@media (max-width: 480px) {
    .about-bento {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .bento-card--main,
    .bento-card--quality,
    .bento-card--support,
    .bento-card--delivery,
    .bento-card--innovation,
    .bento-card--safety,
    .bento-card--warranty {
        grid-column: span 1;
    }
    
    .warranty-years {
        font-size: 2.5rem;
    }
    
    /* Main card stats on small mobile */
    .bento-card__stats {
        gap: 1.5rem;
        padding-top: 0.75rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    /* Main card text on small mobile */
    .bento-card--main .bento-card__content > p {
        font-size: 1.05rem;
        line-height: 1.6;
    }
}

/* Products Section */
.products, .products-section {
    padding: var(--section-padding);
    /*background: linear-gradient(180deg, var(--background-light) 0%, var(--background-white) 100%);*/
    max-width: 1200px;
    margin: 0 auto;
}

.products__grid, .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.product-card {
    background: var(--glass-white);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid var(--glass-white-border);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.product-card__image, .product-image {
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card__image img, .product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-card__content, .product-content {
    padding: 2rem;
}

.product-card__content h3, .product-content h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.product-card__features, .product-features {
    list-style: none;
    margin: 1.5rem 0;
}

.product-card__features li, .product-features li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: #374151;
}

.product-card__features li::before, .product-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.product-actions {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

/* Reviews Section - Carousel */
.reviews {
    padding: var(--section-padding);
    background-color: var(--background-light);
}

.reviews-carousel {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.reviews-carousel__container {
    overflow: hidden;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin: 0 80px;
    width: calc(100% - 160px);
    max-width: 100%;
}

.reviews-carousel__track {
    display: flex;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateX(-100%);
    width: 100%;
    min-width: 100%;
}

.review {
    background: white;
    padding: 3rem 2rem;
    min-width: 100%;
    width: 100%;
    box-sizing: border-box;
    position: relative;
    text-align: center;
    flex-shrink: 0;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.review--clone {
    pointer-events: none;
}

.review::before {
    content: "\201C";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
}

.review__content {
    margin-bottom: 2rem;
    font-style: italic;
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--text-primary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.review__author strong {
    color: var(--primary-color);
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.review__author span {
    color: var(--text-secondary);
    font-size: 1rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.review__content p {
    margin: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    max-width: 100%;
    text-align: center;
}

/* Navigation Arrows */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.2);
    z-index: 10;
}

.carousel-arrow:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 12px 30px rgba(139, 92, 246, 0.4);
}

.carousel-arrow--prev {
    left: 0;
}

.carousel-arrow--next {
    right: 0;
}

.carousel-arrow i {
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: color var(--transition-normal);
}

.carousel-arrow:hover i {
    color: white;
}

.reviews-carousel__indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.3);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

/* Mobile */
@media (max-width: 768px) {
    /* Header edge-to-edge */
    .header { top: 0; border-radius: 0; }
    .header-content { flex-direction: row; justify-content: space-between; align-items: center; min-height: 56px; gap: 8px; padding: 0.5rem 1rem; }
    .logo, .logo a { display: flex; align-items: center; }
    .logo-img { height: 48px; max-width: 90px; }
    .burger { margin-left: auto; }

    /* Hero sizing */
    .hero { padding: 160px 0 120px; }
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1.1rem; }

    /* Reviews */
    .reviews-carousel__container { 
        margin: 0 16px; 
        width: calc(100% - 32px);
    }
    .review { 
        padding: 1.5rem 1rem; 
        overflow: hidden;
    }
    .review__content { 
        font-size: 1rem; 
        padding: 0 0.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    .carousel-arrow { display: none; }
}

/* Small mobile */
@media (max-width: 480px) {
    .logo-img { height: 40px; max-width: 80px; }
    .hero { padding: 120px 0 90px; }
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 1rem; }
    
    .review {
        padding: 1rem 0.75rem;
    }
    
    .review__content {
        font-size: 0.95rem;
        padding: 0 0.25rem;
    }
    
    .review__author strong {
        font-size: 1rem;
    }
    
    .review__author span {
        font-size: 0.9rem;
    }
}

/* Contact Form */
.contact-form {
    padding: var(--section-padding);
}

.contact-form__content {
    max-width: 1000px;
    margin: 0 auto;
}

.form {
    background: var(--glass-white);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-white-border);
}

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

.form__group {
    margin-bottom: 1.5rem;
}

.form__group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form__group input,
.form__group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-light);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form__group input:focus,
.form__group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form__group input:invalid,
.form__group textarea:invalid {
    border-color: var(--error-color);
}

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

/* Messages */
.message {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.message--success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.message--error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Footer */
.footer {
    background-color: #000000;
    color: white;
    padding: 2rem 0 1rem;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer__section h3,
.footer__section h4 {
    margin-bottom: 0.75rem;
    color: #f9fafb;
    font-size: 1.1rem;
}

.footer__section a {
    color: #d1d5db;
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

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

.footer__section ul {
    list-style: none;
}

.footer__section ul li {
    margin-bottom: 0.4rem;
}

.footer__section p {
    font-size: 0.95rem;
    line-height: 1.4;
}

.footer__bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid #333333;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* WhatsApp Widget */
.whatsapp-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.whatsapp-widget a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-fast);
    animation: pulse 2s infinite;
}

.whatsapp-widget a:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.8);
    }
}

/* Comparison Section */
.comparison {
    padding: var(--section-padding);
    background-color: var(--background-light);
}

.comparison__table-wrapper {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.comparison__table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    min-width: 600px;
}

.comparison__table th,
.comparison__table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.comparison__table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    position: sticky;
    top: 0;
}

.comparison__table th:first-child {
    border-top-left-radius: 10px;
}

.comparison__table th:last-child {
    border-top-right-radius: 10px;
}

.comparison__cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison__cell--good {
    color: var(--success-color);
    font-weight: 500;
}

.comparison__cell--neutral {
    color: var(--text-secondary);
}

.comparison__icon {
    font-weight: bold;
    font-size: 1.2rem;
}

/* Recommendations */
.recommendations {
    padding: var(--section-padding);
}

.recommendations__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.recommendation-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.recommendation-card:hover {
    transform: translateY(-5px);
}

.recommendation-card__header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
}

.recommendation-card__header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: white;
}

.recommendation-card__content {
    padding: 2rem;
}

.recommendation-card__content ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.recommendation-card__content li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.recommendation-card__content li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.recommendation-card__footer {
    padding: 0 2rem 2rem;
}

/* FAQ Section */
.faq-section {
    padding: var(--section-padding);
    background-color: var(--background-light);
}

.faq__list, .faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item, .faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq__question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-fast);
}

.faq__question:hover {
    background-color: var(--background-light);
}

.faq__question h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.faq__toggle {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2563eb;
    transition: transform var(--transition-fast);
}

.faq__item--open .faq__toggle {
    transform: rotate(45deg);
}

.faq__answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-fast);
}

.faq__item--open .faq__answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 200px;
}

.faq__answer p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-item {
    padding: 2rem;
}

.faq-item h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Category Pages */
.hero-category {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-product {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-category::before,
.hero-product::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" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero--with-bg {
    background: #1e3a8a;
    position: relative;
    overflow: hidden;
}

.hero--with-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/background.png') center center/cover no-repeat;
    filter: blur(3px);
    z-index: 1;
}

.hero--with-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2;
}

.hero--with-bg .hero-content,
.hero--with-bg .container {
    position: relative;
    z-index: 3;
}

.hero-content {
    position: relative;
}

/* Breadcrumbs */
.breadcrumbs {
    background-color: var(--background-light);
    padding: 1rem 0;
    margin-top: 110px;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb-nav a {
    color: #2563eb;
    text-decoration: none;
}

.breadcrumb-nav a:hover {
    text-decoration: underline;
}

.breadcrumb-nav .separator {
    color: var(--text-secondary);
}

.breadcrumb-nav .current {
    color: #374151;
    font-weight: 500;
}

/* Section Description */
.section-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    font-size: 1.2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Advantages Grid */
.advantages-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-white) 100%);
    position: relative;
}

.advantages-section::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" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%232563eb" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.5;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
    position: relative;
    z-index: 2;
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.2);
}

.advantage-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    color: var(--primary-color);
}

.advantage-icon i {
    font-size: 3.5rem;
}

/* Application Section */
.application-section {
    padding: 100px 0;
    background: white;
    position: relative;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.application-item {
    padding: 2.5rem;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-white) 100%);
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
    border-left: 5px solid var(--primary-color);
    transition: all var(--transition-normal);
}

.application-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.15);
    border-left-width: 8px;
}

.application-item h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.application-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Product Overview */
.product-overview {
    padding: 60px 0;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    margin: 2rem 0;
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.main-image {
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.thumbnail-gallery {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.thumbnail-gallery img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.thumbnail-gallery img:hover {
    opacity: 0.8;
}

.product-info h3 {
    color: var(--text-primary);
    margin: 3rem 0 3rem 3rem;
    font-size: 1.8rem;
    font-weight: 600;
    padding-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.product-info h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-color-dark));
    border-radius: 2px;
}

.product-info p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 0 2rem 3rem;
    font-size: 1.1rem;
}

/* Key Features */
.key-features {
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-white) 100%);
    padding: 2.5rem;
    border-radius: 16px;
    margin-bottom: 2.5rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.key-features h4 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.key-features ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.key-features li {
    padding: 0.75rem 0;
    color: #374151;
    font-size: 1.1rem;
    line-height: 1.6;
    position: relative;
}

/* Specifications */
.specifications-section {
    padding: var(--section-padding);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.specs-category {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.specs-category h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid var(--border-light);
}

.specs-table tr:last-child {
    border-bottom: none;
}

.specs-table td {
    padding: 0.75rem 0;
    color: #374151;
}

.specs-table td:first-child {
    font-weight: 500;
    color: var(--text-primary);
}

/* Installation Section */
.installation-section {
    padding: var(--section-padding);
    background-color: var(--background-light);
}

.installation-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        width: calc(100% - 20px);
        left: 10px;
        right: 10px;
        top: 10px;
        border-radius: 15px;
    }
    
    .logo-img {
        height: 35px;
        max-width: 180px;
    }
    
    .footer-logo-img {
        height: 40px;
        max-width: 200px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .hero-cta, .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .feature {
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
    
    .feature-icon {
        width: 2rem;
        height: 2rem;
        font-size: 1.5rem;
    }
    
    .feature-icon i {
        font-size: 1.3rem;
    }
    
    .btn {
        padding: 16px 32px;
        font-size: 1.2rem;
    }
    
    .form__row {
        grid-template-columns: 1fr;
    }
    
    .products__grid, .products-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-carousel__container {
        margin: 0 70px;
        width: calc(100% - 140px);
    }
    
    .carousel-arrow {
        width: 50px;
        height: 50px;
    }
    
    .carousel-arrow i {
        font-size: 1rem;
    }
    
    .review {
        padding: 2rem 1.5rem;
    }
    
    .review__content {
        font-size: 1.1rem;
    }
    
    .about-advantages, .advantages-grid, .application-grid, .specs-grid, .installation-steps {
        grid-template-columns: 1fr;
    }
    
    .footer {
        padding: 1.5rem 0 1rem;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
        margin-bottom: 1rem;
    }
    
    .footer__section h3,
    .footer__section h4 {
        margin-bottom: 0.5rem;
        font-size: 1rem;
    }
    
    .footer__section a,
    .footer__section p {
        font-size: 0.9rem;
    }
    
    .footer__section ul li {
        margin-bottom: 0.3rem;
    }
    
    .footer__bottom {
        padding-top: 1rem;
        font-size: 0.85rem;
    }
    
    .product-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-gallery {
        position: static;
    }
    
    .product-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .header {
        width: calc(100% - 15px);
        left: 7.5px;
        right: 7.5px;
        top: 8px;
        border-radius: 12px;
    }
    
    .header-content {
        padding: 0.4rem 0.8rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 160px 0 80px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form {
        padding: 2rem 1.5rem;
    }
    
    .whatsapp-widget {
        bottom: 20px;
        right: 20px;
    }
    
    .reviews-carousel__container {
        margin: 0 60px;
        width: calc(100% - 120px);
    }
    
    .carousel-arrow {
        width: 45px;
        height: 45px;
    }
    
    .carousel-arrow i {
        font-size: 0.9rem;
    }
    
    .whatsapp-widget a {
        width: 65px;
        height: 65px;
    }
    
    .footer {
        padding: 1rem 0 0.75rem;
    }
    
    .footer__content {
        gap: 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .footer__section h3,
    .footer__section h4 {
        margin-bottom: 0.4rem;
        font-size: 0.95rem;
    }
    
    .footer__section a,
    .footer__section p {
        font-size: 0.85rem;
    }
    
    .footer__section ul li {
        margin-bottom: 0.25rem;
    }
    
    .footer__bottom {
        padding-top: 0.75rem;
        font-size: 0.8rem;
    }
}

/* Popup Modal Styles */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(15px);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: var(--glass-white);
    border: 1px solid var(--glass-white-border);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    z-index: 10000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.popup-overlay.active .popup-modal {
    transform: translate(-50%, -50%) scale(1);
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.popup-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.popup-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.popup-close:hover {
    background: var(--background-light);
    color: var(--text-primary);
}

.popup-content {
    margin-bottom: 1.5rem;
}

.popup-product-info {
    background: var(--glass-color);
    border: 1px solid var(--glass-color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.popup-product-image {
    margin-bottom: 1rem;
    text-align: center;
}

.popup-product-image img {
    max-width: fit-content;
    width: 300px;
    height: 300px;
}

.popup-product-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.popup-form {
    margin-top: 1rem;
}

.popup-form .form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.popup-form .form__group {
    margin-bottom: 1rem;
}

.popup-form .form__group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.popup-form .form__group input,
.popup-form .form__group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: var(--background-white);
}

.popup-form .form__group input:focus,
.popup-form .form__group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

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

/* Mobile responsive for popup */
@media (max-width: 768px) {
    .popup-modal {
        padding: 1.5rem;
        width: 95%;
    }
    
    .popup-form .form__row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .popup-title {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .popup-modal {
        padding: 1rem;
        width: 98%;
    }
    
    .popup-header {
        margin-bottom: 1rem;
        padding-bottom: 0.75rem;
    }
    
    .popup-title {
        font-size: 1.2rem;
    }
}

/* Product Card Button Styles */
.model-card .btn {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.model-card .btn--primary,
.model-card .btn--secondary {
    padding: 14px 20px;
    font-size: 1rem;
    line-height: 1.2;
}

.model-card .btn--primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
    color: white;
    box-shadow: var(--shadow-primary);
}

.model-card .btn--secondary {
    background: var(--background-white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.model-card .btn--secondary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.model-card .btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

/* Responsive adjustments for product card buttons */
@media (max-width: 1024px) {
    .model-card .btn--primary,
    .model-card .btn--secondary {
        padding: 12px 18px;
        font-size: 0.95rem;
        min-height: 44px;
    }
    
    .button-container {
        gap: 8px;
        margin-top: 12px;
    }
}

@media (max-width: 768px) {
    .model-card .btn--primary,
    .model-card .btn--secondary {
        padding: 10px 16px;
        font-size: 0.9rem;
        min-height: 40px;
    }
    
    .button-container {
        gap: 6px;
        margin-top: 10px;
    }
}

@media (max-width: 480px) {
    .model-card .btn--primary,
    .model-card .btn--secondary {
        padding: 8px 14px;
        font-size: 0.85rem;
        min-height: 36px;
    }
    
    .button-container {
        gap: 5px;
        margin-top: 8px;
    }
    
    /* Ensure text is visible on very small screens */
    .model-card .btn {
        font-size: 0.8rem;
        padding: 6px 10px;
        min-height: 32px;
    }
}

/* Extra small screens */
@media (max-width: 360px) {
    .model-card .btn {
        font-size: 0.75rem;
        padding: 5px 8px;
        min-height: 30px;
    }
    
    .button-container {
        gap: 4px;
        margin-top: 6px;
        grid-template-columns: 1fr 1fr;
    }
    
    /* Stack buttons vertically on very small screens if needed */
    @media (max-width: 320px) {
        .button-container {
            grid-template-columns: 1fr;
            gap: 6px;
        }
        
        .model-card .btn {
            min-height: 28px;
            font-size: 0.7rem;
        }
    }
}

/* Product Card Button Container */
.button-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 15px;
}

/* Product Hero Layout */
.product-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.product-hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 30px;
}

.product-hero-image {
    text-align: center;
    position: relative;
}

.product-hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.product-hero-image img:hover {
    transform: scale(1.02);
}

.product-hero-content {
    padding-left: 20px;
}

.product-hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    max-width: 700px;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.product-hero-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.product-hero-specs {
    margin-bottom: 2.5rem;
}

.product-hero-specs h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-hero-specs ul {
    list-style: none;
    padding: 0;
}

.product-hero-specs li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 1rem;
    color: var(--text-secondary);
}

.product-hero-specs li:last-child {
    border-bottom: none;
}

.product-hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.product-hero-actions .btn {
    min-width: 140px;
}

/* Responsive adjustments for product hero */
@media (max-width: 1024px) {
    .product-hero-layout {
        gap: 40px;
    }
    
    .product-hero-title {
        font-size: 2.2rem;
    }
    
    .product-hero-description p {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .product-hero {
        padding: 100px 0 60px;
    }
    
    .product-hero-layout {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
        margin-top: 20px;
    }
    
    .product-hero-content {
        padding-left: 0;
    }
    
    .product-hero-title {
        font-size: 2rem;
    }
    
    .product-hero-actions {
        justify-content: center;
    }
    
    .product-hero-breadcrumbs {
        top: 15px;
        left: 15px;
        max-width: calc(100% - 30px);
    }
    
    .product-hero-breadcrumbs .breadcrumb-nav {
        font-size: 0.8rem;
        gap: 6px;
    }
}

@media (max-width: 480px) {
    .product-hero {
        padding: 80px 0 40px;
    }
    
    .product-hero-layout {
        margin-top: 20px;
    }
    
    .product-hero-title {
        font-size: 1.8rem;
    }
    
    .product-hero-description p {
        font-size: 0.95rem;
    }
    
    .product-hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .product-hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .product-hero-breadcrumbs {
        top: 10px;
        left: 10px;
        max-width: calc(100% - 20px);
    }
    
    .product-hero-breadcrumbs .breadcrumb-nav {
        font-size: 0.75rem;
        gap: 4px;
    }
}

/* Product Hero Breadcrumbs */
.product-hero-breadcrumbs {
    z-index: 10;
    max-width: calc(50% - 40px);
    margin-top: 20px;
}

.product-hero-breadcrumbs .breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.product-hero-breadcrumbs .breadcrumb-nav a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-normal);
    font-weight: 500;
}

.product-hero-breadcrumbs .breadcrumb-nav a:hover {
    color: var(--primary-color-dark);
    text-decoration: underline;
}

.product-hero-breadcrumbs .breadcrumb-nav .separator {
    color: var(--text-light);
    font-weight: 300;
}

.product-hero-breadcrumbs .breadcrumb-nav .current {
    color: var(--text-primary);
    font-weight: 600;
}

/* Responsive adjustments for breadcrumbs */
@media (max-width: 768px) {
    .product-hero-breadcrumbs {
        max-width: calc(100% - 30px);
    }
    
    .product-hero-breadcrumbs .breadcrumb-nav {
        font-size: 0.8rem;
        gap: 6px;
    }
}

@media (max-width: 480px) {
    .product-hero-breadcrumbs {
        max-width: calc(100% - 20px);
    }
    
    .product-hero-breadcrumbs .breadcrumb-nav {
        font-size: 0.75rem;
        gap: 4px;
    }
}

/* Hero CTA Buttons - Ensure consistent sizing */
.hero-cta .btn {
    min-width: 200px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

/* Responsive adjustments for hero buttons */
@media (max-width: 768px) {
    .hero-cta, .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .hero-cta .btn {
        min-width: 280px;
        min-height: 56px;
        padding: 16px 32px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .hero-cta .btn {
        min-width: 260px;
        min-height: 52px;
        padding: 14px 28px;
        font-size: 1rem;
    }
}

@media (max-width: 360px) {
    .hero-cta .btn {
        min-width: 240px;
        min-height: 48px;
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}

/* Sravnenie Page Responsive Styles */
.introduction-section,
.closed-busbar-section,
.open-busbar-section,
.comparison-section {
    padding: 180px 0 40px 0;
    position: relative;
    overflow: hidden;
}

.introduction-section::before,
.closed-busbar-section::before,
.open-busbar-section::before,
.comparison-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, rgba(139, 92, 246, 0.08) 100%);
    z-index: -1;
}

.introduction-section::after,
.closed-busbar-section::after,
.open-busbar-section::after,
.comparison-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    right: -50%;
    bottom: -50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    z-index: -2;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -10px) rotate(1deg); }
    50% { transform: translate(-5px, 5px) rotate(-1deg); }
    75% { transform: translate(-10px, -5px) rotate(0.5deg); }
}

.introduction-content,
.closed-busbar-content,
.open-busbar-content {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.types-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 40px 0;
    width: 100%;
    position: relative;
    z-index: 1;
}

.feature-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
    width: 100%;
    box-sizing: border-box;
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(139, 92, 246, 0.1) 100%);
    z-index: -1;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.specs-card {
    padding: 30px;
    border-radius: 20px;
    width: 100%;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.spec-item {
    background: var(--glass-color);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--glass-color-border);
    width: 100%;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.spec-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, rgba(139, 92, 246, 0.08) 100%);
    z-index: -1;
}

.closed-busbar-section {
    background: rgba(139, 92, 246, 0.05);
    padding: 40px 0;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 40px;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.glass-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, rgba(139, 92, 246, 0.08) 100%);
    z-index: -1;
}

/* Responsive adjustments for sravnenie page */
@media (max-width: 1024px) {
    .introduction-section,
    .closed-busbar-section,
    .open-busbar-section,
    .comparison-section {
        padding: 140px 0 40px 0;
    }
    
    .introduction-content,
    .closed-busbar-content,
    .open-busbar-content {
        padding: 0 15px;
    }
    
    .types-overview {
        gap: 20px;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .specs-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
}

@media (max-width: 768px) {
    .introduction-section,
    .closed-busbar-section,
    .open-busbar-section,
    .comparison-section {
        padding: 120px 0 40px 0;
    }
    
    .introduction-content,
    .closed-busbar-content,
    .open-busbar-content {
        padding: 0 15px;
        max-width: 100%;
    }
    
    .types-overview {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
        text-align: center;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .glass-effect {
        padding: 25px !important;
    }
    
    .feature-item {
        text-align: left !important;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .introduction-section,
    .closed-busbar-section,
    .open-busbar-section,
    .comparison-section {
        padding: 100px 0 30px 0;
    }
    
    .introduction-content,
    .closed-busbar-content,
    .open-busbar-content {
        padding: 0 10px;
    }
    
    .types-overview {
        gap: 15px;
        max-width: 100%;
    }
    
    .features-grid {
        gap: 15px;
        max-width: 100%;
    }
    
    .glass-effect {
        padding: 20px !important;
        border-radius: 15px !important;
    }
    
    .feature-item {
        padding: 15px !important;
        border-radius: 12px !important;
        max-width: 100%;
    }
    
    .specs-card {
        padding: 20px !important;
        border-radius: 15px !important;
        max-width: 100%;
    }
}