:root {
    --qu-primary: #00D9FF;
    --qu-primary-dark: #00A8CC;
    --qu-secondary: #FF006E;
    --qu-accent: #FFBE0B;
    
    --qu-dark: #0A0E27;
    --qu-gray-900: #1A1F3A;
    --qu-gray-800: #2A2F4A;
    --qu-gray-700: #3F4563;
    --qu-gray-600: #5F6588;
    --qu-gray-500: #8B90B0;
    --qu-gray-400: #B5B8CC;
    --qu-gray-300: #D8DAE5;
    --qu-gray-200: #E8EAF0;
    --qu-gray-100: #F4F5F9;
    --qu-white: #FFFFFF;
    
    --qu-gradient-primary: linear-gradient(135deg, #00D9FF 0%, #00A8CC 100%);
    --qu-gradient-accent: linear-gradient(135deg, #FF006E 0%, #C70055 100%);
    --qu-gradient-dark: linear-gradient(135deg, #0A0E27 0%, #1A1F3A 100%);
    --qu-gradient-overlay: linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(26, 31, 58, 0.9) 100%);
    
    --qu-font-primary: 'Outfit', sans-serif;
    --qu-font-mono: 'Space Mono', monospace;
    
    --qu-space-xs: 0.5rem;
    --qu-space-sm: 1rem;
    --qu-space-md: 2rem;
    --qu-space-lg: 4rem;
    --qu-space-xl: 6rem;
    
    --qu-transition-fast: 0.2s ease;
    --qu-transition-base: 0.3s ease;
    --qu-transition-slow: 0.5s ease;
    
    --qu-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --qu-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --qu-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --qu-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    
    --qu-radius-sm: 8px;
    --qu-radius-md: 16px;
    --qu-radius-lg: 24px;
    --qu-radius-xl: 32px;
}

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

body {
    font-family: var(--qu-font-primary);
    color: var(--qu-gray-800);
    background-color: var(--qu-gray-100);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    transition: var(--qu-transition-base);
}

.qu-navbar-main {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--qu-shadow-sm);
    padding: 1rem 0;
    transition: var(--qu-transition-base);
}

.qu-navbar-main.scrolled {
    box-shadow: var(--qu-shadow-md);
}

.qu-brand-logo .qu-logo-text {
    font-family: var(--qu-font-mono);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 2px;
    background: var(--qu-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qu-nav-menu .nav-link {
    color: var(--qu-gray-700);
    font-weight: 500;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    transition: var(--qu-transition-base);
    position: relative;
}

.qu-nav-menu .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--qu-gradient-primary);
    transition: transform var(--qu-transition-base);
}

.qu-nav-menu .nav-link:hover::after,
.qu-nav-menu .nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.qu-nav-menu .nav-link:hover,
.qu-nav-menu .nav-link.active {
    color: var(--qu-primary);
}

.qu-dropdown-custom {
    border: none;
    box-shadow: var(--qu-shadow-lg);
    border-radius: var(--qu-radius-md);
    padding: 0.5rem 0;
    margin-top: 0.5rem;
}

.qu-dropdown-custom .dropdown-item {
    padding: 0.75rem 1.5rem;
    color: var(--qu-gray-700);
    transition: var(--qu-transition-fast);
}

.qu-dropdown-custom .dropdown-item:hover {
    background: var(--qu-gray-100);
    color: var(--qu-primary);
}

.qu-hero-dynamic {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    background: var(--qu-dark);
}

.qu-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.qu-hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}

.qu-gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--qu-gradient-overlay);
}

.qu-hero-shape {
    position: absolute;
    width: 500px;
    height: 500px;
    opacity: 0.15;
}

.qu-shape-01 {
    top: -100px;
    right: -100px;
    animation: qu-float 20s ease-in-out infinite;
}

.qu-shape-02 {
    bottom: -150px;
    left: -100px;
    animation: qu-float 25s ease-in-out infinite reverse;
}

.qu-hero-content {
    position: relative;
    z-index: 2;
}

.qu-hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--qu-white);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.qu-hero-accent {
    background: var(--qu-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qu-hero-subtitle {
    font-size: 1.25rem;
    color: var(--qu-gray-300);
    margin-bottom: 2rem;
    max-width: 600px;
}

.qu-hero-cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.qu-hero-stats {
    display: flex;
    gap: 3rem;
}

.qu-stat-item {
    text-align: left;
}

.qu-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--qu-primary);
    font-family: var(--qu-font-mono);
}

.qu-stat-label {
    font-size: 0.875rem;
    color: var(--qu-gray-400);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.qu-hero-product-showcase {
    position: relative;
    padding: 2rem;
}

.qu-showcase-img {
    width: 100%;
    border-radius: var(--qu-radius-xl);
    box-shadow: var(--qu-shadow-xl);
}

.qu-showcase-badge {
    position: absolute;
    top: 3rem;
    right: 3rem;
    background: var(--qu-white);
    padding: 1rem 1.5rem;
    border-radius: var(--qu-radius-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--qu-shadow-lg);
}

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

.qu-badge-text {
    font-weight: 600;
    color: var(--qu-gray-800);
}

.qu-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 2;
}

.qu-scroll-line {
    width: 2px;
    height: 40px;
    background: var(--qu-gradient-primary);
    animation: qu-scroll-bounce 2s ease-in-out infinite;
}

.qu-scroll-text {
    font-size: 0.75rem;
    color: var(--qu-gray-400);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.qu-btn-primary {
    background: var(--qu-gradient-primary);
    color: var(--qu-white);
    padding: 1rem 2rem;
    border-radius: var(--qu-radius-md);
    font-weight: 600;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--qu-transition-base);
    box-shadow: var(--qu-shadow-md);
}

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

.qu-btn-outline {
    background: transparent;
    color: var(--qu-white);
    padding: 1rem 2rem;
    border: 2px solid var(--qu-primary);
    border-radius: var(--qu-radius-md);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--qu-transition-base);
    width: max-content;
}

.qu-article-hero h1{
    color: #fff;
}

.qu-comparison-card .qu-btn-outline{
    color: #000;
}

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

.qu-btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.qu-btn-product-view {
    background: var(--qu-dark);
    color: var(--qu-white);
    padding: 0.875rem 1.75rem;
    border-radius: var(--qu-radius-md);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--qu-transition-base);
    width: max-content;
}

.qu-btn-product-view:hover {
    background: var(--qu-primary);
    color: var(--qu-white);
    transform: translateX(4px);
}

.qu-btn-newsletter {
    background: var(--qu-gradient-primary);
    color: var(--qu-white);
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 0 var(--qu-radius-md) var(--qu-radius-md) 0;
    font-weight: 600;
    white-space: nowrap;
}

.qu-btn-cookie-accept {
    background: var(--qu-primary);
    color: var(--qu-white);
    border: none;
    padding: 0.625rem 1.5rem;
    border-radius: var(--qu-radius-sm);
    font-weight: 600;
    transition: var(--qu-transition-base);
}

.qu-btn-cookie-accept:hover {
    background: var(--qu-primary-dark);
}

.qu-section-intro {
    background: var(--qu-white);
}

.qu-section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 1rem;
}

.qu-section-subtitle {
    font-size: 1.125rem;
    color: var(--qu-gray-600);
    max-width: 700px;
    margin: 0 auto;
}

.qu-intro-text {
    font-size: 1.125rem;
    color: var(--qu-gray-700);
    line-height: 1.8;
}

.qu-intro-text.lead {
    font-size: 1.25rem;
    font-weight: 500;
}

.qu-range-calculator-section {
    background: var(--qu-gray-100);
}

.qu-calculator-card {
    background: var(--qu-white);
    border-radius: var(--qu-radius-xl);
    padding: 2.5rem;
    box-shadow: var(--qu-shadow-lg);
}

.qu-calculator-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.qu-calculator-title i {
    color: var(--qu-primary);
}

.qu-calculator-subtitle {
    color: var(--qu-gray-600);
    margin-bottom: 2rem;
}

.qu-form-label {
    font-weight: 600;
    color: var(--qu-gray-700);
    margin-bottom: 0.5rem;
    display: block;
}

.qu-range-slider {
    width: 100%;
}

.qu-range-value {
    text-align: center;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--qu-primary);
    margin-top: 0.5rem;
}

.qu-form-select {
    padding: 0.75rem;
    border: 2px solid var(--qu-gray-300);
    border-radius: var(--qu-radius-sm);
    font-size: 1rem;
    transition: var(--qu-transition-base);
}

.qu-form-select:focus {
    border-color: var(--qu-primary);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
    outline: none;
}

.qu-calculator-result {
    background: var(--qu-gradient-dark);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

.qu-result-label {
    color: var(--qu-gray-400);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.qu-result-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--qu-primary);
    font-family: var(--qu-font-mono);
    margin-bottom: 1rem;
}

.qu-result-note {
    color: var(--qu-gray-400);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.qu-products-showcase {
    background: var(--qu-white);
}

.qu-product-filter-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.qu-filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--qu-gray-300);
    background: transparent;
    border-radius: var(--qu-radius-md);
    font-weight: 600;
    color: var(--qu-gray-700);
    cursor: pointer;
    transition: var(--qu-transition-base);
}

.qu-filter-btn:hover,
.qu-filter-btn.active {
    border-color: var(--qu-primary);
    color: var(--qu-primary);
    background: rgba(0, 217, 255, 0.05);
}

.qu-product-card {
    background: var(--qu-white);
    border-radius: var(--qu-radius-xl);
    overflow: hidden;
    box-shadow: var(--qu-shadow-md);
    transition: var(--qu-transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.qu-product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--qu-shadow-xl);
}

.qu-product-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 380px;
    background: var(--qu-gray-100);
}

.qu-product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--qu-transition-slow);
}

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

.qu-product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--qu-primary);
    color: var(--qu-white);
    padding: 0.5rem 1rem;
    border-radius: var(--qu-radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.qu-badge-premium {
    background: var(--qu-secondary);
}

.qu-product-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.qu-product-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 0.25rem;
}

.qu-product-tagline {
    color: var(--qu-gray-600);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.qu-product-specs-mini {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--qu-gray-200);
}

.qu-spec-mini {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.qu-spec-mini i {
    color: var(--qu-primary);
    font-size: 1.125rem;
}

.qu-spec-mini span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--qu-gray-700);
}

.qu-product-description {
    color: var(--qu-gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
}

.qu-product-features-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.qu-feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: var(--qu-gray-100);
    color: var(--qu-gray-700);
    padding: 0.375rem 0.75rem;
    border-radius: var(--qu-radius-sm);
    font-size: 0.8125rem;
}

.qu-feature-tag i {
    color: var(--qu-primary);
    font-size: 0.75rem;
}

.qu-tech-highlights {
    background: var(--qu-dark);
    color: var(--qu-white);
}

.qu-tech-highlights .qu-section-title {
    color: var(--qu-white);
}

.qu-tech-highlights .qu-section-subtitle {
    color: var(--qu-gray-400);
}

.qu-tech-card {
    background: var(--qu-gray-900);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--qu-transition-base);
    height: 100%;
    border: 1px solid var(--qu-gray-800);
}

.qu-tech-card:hover {
    transform: translateY(-4px);
    border-color: var(--qu-primary);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.15);
}

.qu-tech-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--qu-gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--qu-white);
}

.qu-tech-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qu-white);
    margin-bottom: 1rem;
}

.qu-tech-desc {
    color: var(--qu-gray-400);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.qu-tech-stat {
    font-size: 2rem;
    font-weight: 700;
    color: var(--qu-primary);
    font-family: var(--qu-font-mono);
    margin-bottom: 0.25rem;
}

.qu-tech-stat-label {
    font-size: 0.8125rem;
    color: var(--qu-gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.qu-comparison-section {
    background: var(--qu-gray-100);
}

.qu-comparison-wrapper {
    background: var(--qu-white);
    border-radius: var(--qu-radius-xl);
    padding: 2rem;
    box-shadow: var(--qu-shadow-lg);
}

.qu-comparison-toggle {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.qu-compare-btn {
    padding: 0.875rem 1.75rem;
    border: 2px solid var(--qu-gray-300);
    background: transparent;
    border-radius: var(--qu-radius-md);
    font-weight: 600;
    color: var(--qu-gray-700);
    cursor: pointer;
    transition: var(--qu-transition-base);
}

.qu-compare-btn:hover,
.qu-compare-btn.active {
    border-color: var(--qu-primary);
    color: var(--qu-white);
    background: var(--qu-primary);
}

.qu-comparison-panel {
    display: none;
}

.qu-comparison-panel.active {
    display: block;
    animation: qu-fade-in 0.5s ease;
}

.qu-compare-img {
    width: 100%;
    border-radius: var(--qu-radius-lg);
    box-shadow: var(--qu-shadow-md);
}

.qu-compare-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 1.5rem;
}

.qu-compare-specs {
    margin-bottom: 1.5rem;
}

.qu-spec-bar {
    margin-bottom: 1.5rem;
}

.qu-spec-label {
    font-weight: 600;
    color: var(--qu-gray-700);
    margin-bottom: 0.5rem;
}

.qu-spec-visual {
    height: 12px;
    background: var(--qu-gray-200);
    border-radius: var(--qu-radius-sm);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.qu-spec-fill {
    height: 100%;
    background: var(--qu-gradient-primary);
    border-radius: var(--qu-radius-sm);
    transition: width 0.8s ease;
}

.qu-spec-value {
    font-weight: 600;
    color: var(--qu-primary);
    font-family: var(--qu-font-mono);
}

.qu-compare-note {
    color: var(--qu-gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.qu-testimonials-section {
    background: var(--qu-white);
}

.qu-testimonial-card {
    background: var(--qu-gray-100);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--qu-transition-base);
}

.qu-testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qu-shadow-md);
}

.qu-testimonial-rating {
    color: var(--qu-accent);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.qu-testimonial-text {
    color: var(--qu-gray-700);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex: 1;
    font-style: italic;
}

.qu-testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.qu-author-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.qu-author-name {
    font-weight: 600;
    color: var(--qu-dark);
}

.qu-author-location {
    font-size: 0.875rem;
    color: var(--qu-gray-600);
}

.qu-team-section {
    background: var(--qu-gray-100);
}

.qu-team-card {
    background: var(--qu-white);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--qu-transition-base);
    height: 100%;
}

.qu-team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qu-shadow-lg);
}

.qu-team-img-wrapper {
    width: 150px;
    height: 150px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--qu-primary);
}

.qu-team-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qu-team-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 0.25rem;
}

.qu-team-role {
    color: var(--qu-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.qu-team-bio {
    color: var(--qu-gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.qu-safety-section {
    background: var(--qu-white);
}

.qu-safety-img {
    width: 100%;
    border-radius: var(--qu-radius-xl);
    box-shadow: var(--qu-shadow-lg);
}

.qu-safety-text {
    font-size: 1.125rem;
    color: var(--qu-gray-700);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.qu-safety-points {
    margin-bottom: 2rem;
}

.qu-safety-point {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.qu-safety-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    background: var(--qu-gradient-primary);
    border-radius: var(--qu-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--qu-white);
    font-size: 1.5rem;
}

.qu-safety-content h5 {
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 0.5rem;
}

.qu-safety-content p {
    color: var(--qu-gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
}

.qu-maintenance-section {
    background: var(--qu-dark);
    color: var(--qu-white);
}

.qu-maintenance-section .qu-section-title {
    color: var(--qu-white);
}

.qu-maintenance-section .qu-section-subtitle {
    color: var(--qu-gray-400);
}

.qu-maintenance-card {
    background: var(--qu-gray-900);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    text-align: center;
    height: 100%;
    border: 1px solid var(--qu-gray-800);
    transition: var(--qu-transition-base);
}

.qu-maintenance-card:hover {
    border-color: var(--qu-primary);
    transform: translateY(-4px);
}

.qu-maintenance-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--qu-gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--qu-white);
}

.qu-maintenance-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qu-white);
    margin-bottom: 1rem;
}

.qu-maintenance-desc {
    color: var(--qu-gray-400);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.qu-maintenance-frequency {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--qu-gray-800);
    padding: 0.5rem 1rem;
    border-radius: var(--qu-radius-sm);
    font-size: 0.875rem;
}

.qu-freq-label {
    color: var(--qu-gray-500);
}

.qu-gallery-section {
    background: var(--qu-gray-100);
}

.qu-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.qu-gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--qu-radius-lg);
    aspect-ratio: 1 / 1;
}

.qu-gallery-large {
    grid-column: span 2;
    aspect-ratio: 2 / 1;
}

.qu-gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--qu-transition-slow);
}

.qu-gallery-item:hover .qu-gallery-img {
    transform: scale(1.1);
}

.qu-gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--qu-transition-base);
}

.qu-gallery-item:hover .qu-gallery-overlay {
    opacity: 1;
}

.qu-gallery-caption {
    color: var(--qu-white);
    font-weight: 600;
    font-size: 1.125rem;
}

.qu-faq-section {
    background: var(--qu-white);
}

.qu-faq-accordion {
    border: none;
}

.qu-faq-item {
    border: 1px solid var(--qu-gray-200);
    border-radius: var(--qu-radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
}

.qu-faq-button {
    background: var(--qu-white);
    color: var(--qu-gray-800);
    font-weight: 600;
    padding: 1.5rem;
    border: none;
    box-shadow: none;
}

.qu-faq-button:not(.collapsed) {
    background: var(--qu-gray-100);
    color: var(--qu-primary);
}

.qu-faq-button:focus {
    box-shadow: none;
}

.qu-faq-body {
    padding: 1.5rem;
    color: var(--qu-gray-700);
    line-height: 1.7;
}

.qu-newsletter-section {
    background: var(--qu-dark);
}

.qu-newsletter-card {
    background: var(--qu-gray-900);
    border-radius: var(--qu-radius-xl);
    padding: 3rem;
    text-align: center;
    border: 1px solid var(--qu-gray-800);
}

.qu-newsletter-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--qu-gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--qu-white);
}

.qu-newsletter-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--qu-white);
    margin-bottom: 1rem;
}

.qu-newsletter-text {
    color: var(--qu-gray-400);
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.qu-newsletter-form {
    max-width: 600px;
    margin: 0 auto;
}

.qu-form-group {
    display: flex;
    gap: 0;
}

.qu-newsletter-input {
    flex: 1;
    padding: 0.875rem 1.5rem;
    border: 2px solid var(--qu-gray-700);
    border-right: none;
    border-radius: var(--qu-radius-md) 0 0 var(--qu-radius-md);
    background: var(--qu-gray-800);
    color: var(--qu-white);
    font-size: 1rem;
}

.qu-newsletter-input:focus {
    outline: none;
    border-color: var(--qu-primary);
    background: var(--qu-gray-900);
}

.qu-newsletter-input::placeholder {
    color: var(--qu-gray-500);
}

.qu-newsletter-note {
    color: var(--qu-gray-500);
    font-size: 0.875rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.qu-newsletter-note a {
    color: var(--qu-primary);
    text-decoration: underline;
}

.qu-footer {
    background: var(--qu-dark);
    color: var(--qu-gray-400);
    padding: 4rem 0 2rem;
}

.qu-footer-logo {
    font-family: var(--qu-font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: var(--qu-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.qu-footer-tagline {
    color: var(--qu-gray-500);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.qu-footer-desc {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.qu-footer-title {
    color: var(--qu-white);
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.qu-footer-links {
    list-style: none;
    padding: 0;
}

.qu-footer-links li {
    margin-bottom: 0.75rem;
}

.qu-footer-links a {
    color: var(--qu-gray-400);
    transition: var(--qu-transition-base);
}

.qu-footer-links a:hover {
    color: var(--qu-primary);
}

.qu-footer-divider {
    height: 1px;
    background: var(--qu-gray-800);
    margin: 3rem 0;
}

.qu-footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.qu-contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.qu-contact-item i {
    color: var(--qu-primary);
    font-size: 1.125rem;
    width: 20px;
}

.qu-footer-copyright {
    color: var(--qu-gray-500);
}

.qu-cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--qu-white);
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--qu-transition-base);
}

.qu-cookie-banner.show {
    transform: translateY(0);
}

.qu-cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.qu-cookie-text {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--qu-gray-700);
}

.qu-cookie-text i {
    color: var(--qu-accent);
    font-size: 1.5rem;
}

.qu-cookie-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.qu-cookie-link {
    color: var(--qu-primary);
    font-weight: 600;
}

@media (max-width: 991px) {
    .qu-hero-title {
        font-size: 2.5rem;
    }
    
    .qu-hero-stats {
        gap: 2rem;
    }
    
    .qu-gallery-large {
        grid-column: span 1;
        aspect-ratio: 1 / 1;
    }
}

@media (max-width: 767px) {
    .qu-hero-title {
        font-size: 2rem;
    }
    
    .qu-hero-subtitle {
        font-size: 1rem;
    }
    
    .qu-hero-cta-group {
        flex-direction: column;
    }
    
    .qu-hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .qu-section-title {
        font-size: 2rem;
    }
    
    .qu-calculator-card {
        padding: 1.5rem;
    }
    
    .qu-newsletter-card {
        padding: 2rem 1.5rem;
    }
    
    .qu-form-group {
        flex-direction: column;
    }
    
    .qu-newsletter-input {
        border-right: 2px solid var(--qu-gray-700);
        border-radius: var(--qu-radius-md);
    }
    
    .qu-btn-newsletter {
        border-radius: var(--qu-radius-md);
    }
    
    .qu-cookie-content {
        flex-direction: column;
        text-align: center;
    }
}


.qu-product-hero-section {
    padding: 120px 0 80px;
    background: var(--qu-white);
}

.qu-breadcrumb-nav {
    margin-bottom: 2rem;
}

.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-item a {
    color: var(--qu-gray-600);
}

.breadcrumb-item.active {
    color: var(--qu-gray-800);
}

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

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

.qu-product-hero-img {
    width: 100%;
    height: auto;
}

.qu-product-thumbnails {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.qu-thumbnail {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--qu-radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--qu-transition-base);
}

.qu-thumbnail:hover {
    border-color: var(--qu-primary);
}

.qu-product-category {
    color: var(--qu-primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.qu-product-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--qu-dark);
    margin-bottom: 1rem;
}

.qu-product-rating {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.qu-stars {
    color: var(--qu-accent);
    font-size: 1.125rem;
}

.qu-rating-count {
    color: var(--qu-gray-600);
    font-size: 0.9375rem;
}

.qu-product-lead {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--qu-gray-700);
    margin-bottom: 2rem;
}

.qu-product-highlights {
    background: var(--qu-gray-100);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.qu-highlight-item {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.qu-highlight-item i {
    font-size: 2rem;
    color: var(--qu-primary);
}

.qu-highlight-item strong {
    display: block;
    font-weight: 600;
    color: var(--qu-gray-800);
    font-size: 0.875rem;
}

.qu-highlight-item span {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qu-dark);
}

.qu-product-cta {
    margin-bottom: 2rem;
}

.qu-product-meta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.qu-meta-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--qu-gray-600);
    font-size: 0.9375rem;
}

.qu-meta-item i {
    color: var(--qu-primary);
}

.qu-specs-section {
    background: var(--qu-gray-100);
}

.qu-specs-table-wrapper {
    background: var(--qu-white);
    border-radius: var(--qu-radius-xl);
    overflow: hidden;
    box-shadow: var(--qu-shadow-md);
}

.qu-specs-table {
    margin: 0;
}

.qu-specs-table tbody tr {
    border-bottom: 1px solid var(--qu-gray-200);
}

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

.qu-specs-table td, .qu-specs-table th {
    padding: 1.25rem 2rem;
}

.qu-specs-table td:first-child {
    color: var(--qu-gray-700);
    width: 45%;
}

.qu-specs-table td:last-child {
    color: var(--qu-dark);
    font-weight: 600;
}

.qu-specs-category {
    background: var(--qu-dark);
    color: var(--qu-white);
    font-weight: 700;
    font-size: 1.125rem;
    padding: 1rem 2rem !important;
}

.qu-features-section {
    background: var(--qu-white);
}

.qu-feature-detail-card {
    background: var(--qu-gray-100);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    height: 100%;
    transition: var(--qu-transition-base);
}

.qu-feature-detail-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qu-shadow-md);
}

.qu-feature-icon {
    width: 60px;
    height: 60px;
    background: var(--qu-gradient-primary);
    border-radius: var(--qu-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--qu-white);
    font-size: 1.5rem;
}

.qu-feature-detail-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 1rem;
}

.qu-feature-detail-card p {
    color: var(--qu-gray-700);
    line-height: 1.7;
    margin: 0;
}

.qu-recommended-use-section {
    background: var(--qu-gray-100);
}

.qu-use-card {
    background: var(--qu-white);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    height: 100%;
    box-shadow: var(--qu-shadow-md);
}

.qu-use-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.qu-use-card h3 i {
    color: var(--qu-primary);
}

.qu-caution-card h3 i {
    color: var(--qu-accent);
}

.qu-use-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.qu-use-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--qu-gray-700);
    line-height: 1.7;
}

.qu-use-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--qu-primary);
}

.qu-caution-card .qu-use-list li::before {
    content: '\f06a';
    color: var(--qu-accent);
}

.qu-care-section {
    background: var(--qu-white);
}

.qu-care-card {
    background: var(--qu-gray-100);
    border-radius: var(--qu-radius-lg);
    padding: 2rem;
    height: 100%;
}

.qu-care-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 1.5rem;
}

.qu-care-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.qu-care-card ul li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--qu-gray-700);
    line-height: 1.7;
}

.qu-care-card ul li::before {
    content: '\f0da';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--qu-primary);
}

.qu-product-faq-section {
    background: var(--qu-gray-100);
}

.qu-related-products {
    background: var(--qu-white);
}

.qu-comparison-card {
    background: var(--qu-gray-100);
    border-radius: var(--qu-radius-lg);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--qu-transition-base);
}

.qu-comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qu-shadow-lg);
}

.qu-comparison-image {
    height: 250px;
    overflow: hidden;
}

.qu-comparison-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--qu-transition-slow);
}

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

.qu-comparison-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.qu-comparison-content h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--qu-dark);
    margin-bottom: 1rem;
}

.qu-comparison-content p {
    color: var(--qu-gray-700);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex: 1;
}

@media (max-width: 991px) {
    .qu-product-image-gallery {
        position: static;
        margin-bottom: 2rem;
    }
    
    .qu-product-highlights {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (max-width: 767px) {
    .qu-product-title {
        font-size: 2rem;
    }
    
    .qu-specs-table td, .qu-specs-table th {
        padding: 1rem;
    }
    
    .qu-specs-table td:first-child {
        font-size: 0.875rem;
    }
}



.navbar-brand img{
    max-width: 150px;
    width: 150px;
    object-fit: contain;
}

html{
    overflow-x: hidden;
}


footer .navbar-brand img{
    filter: brightness(0) invert(1);
}

.footer-text{
    margin-top: 20px;
}