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

:root {
    --primary-color: #000000;
    --secondary-color: #1a1a1a;
    --accent-color: #ffffff;
    --dark-color: #000000;
    --light-color: #f5f5f5;
    --white: #ffffff;
    --text-dark: #000000;
    --text-light: #666666;
    --gradient: linear-gradient(135deg, #000000 0%, #2a2a2a 100%);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Header Styles */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 3px solid var(--dark-color);
}

.header.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-lg);
}

.top-bar {
    background: var(--gradient);
    color: var(--white);
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.contact-info {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-info a {
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info a:hover {
    opacity: 0.8;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo img {
    height: 50px;
    width: auto;
}

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

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

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

.mobile-menu-toggle {
    display: none;
    background: var(--dark-color);
    border: 2px solid var(--dark-color);
    font-size: 1rem;
    cursor: pointer;
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: var(--white);
    color: var(--dark-color);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    letter-spacing: -0.5px;
    font-weight: 700;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 1.5rem auto 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

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

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

.btn-whatsapp {
    background: var(--dark-color);
    color: var(--white);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid var(--white);
}

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

.btn-call {
    background: var(--white);
    color: var(--dark-color);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid var(--dark-color);
}

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

/* Hero Section */
.hero {
    background: var(--gradient);
    color: var(--white);
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* About Hero Section */
.about-hero {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--dark-color);
}

.about-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.about-hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(40%) brightness(0.6);
}

.about-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.6) 50%, rgba(0, 0, 0, 0.8) 100%);
    z-index: 1;
}

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

.about-hero-content {
    text-align: center;
    color: var(--white);
    padding: 2rem;
}

.about-hero-content h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.8);
}

.about-hero-content p {
    font-size: 1.4rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
}

.about-hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    margin-top: 3rem;
}

.about-hero-stats .stat-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 2rem 1rem;
    transition: all 0.3s ease;
}

.about-hero-stats .stat-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    border-color: var(--white);
}

.about-hero-stats .stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.about-hero-stats .stat-item p {
    font-size: 1rem;
    margin: 0;
    opacity: 0.9;
    color: var(--white);
    text-shadow: none;
}

/* Hero Slider Styles */
.hero-slider {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    background: var(--dark-color);
    border-bottom: 5px solid var(--white);
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-slide.active {
    opacity: 1;
    z-index: 1;
}

.slide-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: grayscale(30%) brightness(0.9);
    transition: all 0.3s ease;
}

.hero-slide:hover .slide-background {
    filter: grayscale(10%) brightness(1);
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.55) 50%, rgba(0, 0, 0, 0.75) 100%);
    z-index: 1;
}

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    animation: slideInUp 1s ease-out;
}

.slide-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.8);
    letter-spacing: -1px;
}

.slide-text {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
    font-weight: 400;
}

/* Slider Navigation Buttons */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 3px solid var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    opacity: 0.9;
}

.slider-nav:hover {
    background: var(--white);
    color: var(--dark-color);
    transform: translateY(-50%) scale(1.15);
    opacity: 1;
}

.slider-prev {
    left: 30px;
}

.slider-next {
    right: 30px;
}

.slider-nav span {
    display: block;
    line-height: 1;
    font-weight: 300;
}

/* Slider Indicators */
.slider-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 15px;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 20px;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid var(--white);
    cursor: pointer;
    transition: all 0.4s ease;
    padding: 0;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.indicator.active {
    background: var(--white);
    width: 45px;
    border-radius: 10px;
}

/* Slide Animation */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Buttons in Slider */
.hero-slide .hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-slide .hero-buttons .btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.hero-slide .hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

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

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 5px solid var(--white);
}

/* Product Card */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
    background: var(--light-color);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    filter: grayscale(10%);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
    filter: grayscale(0%);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--dark-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 2px solid var(--white);
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.product-features {
    list-style: none;
    margin-bottom: 1rem;
}

.product-features li {
    padding: 0.25rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-features li::before {
    content: '✓';
    color: var(--dark-color);
    font-weight: bold;
}

.product-actions {
    display: flex;
    gap: 1rem;
}

.product-actions .btn {
    flex: 1;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    overflow: hidden;
    border: 3px solid var(--dark-color);
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-size: 1.4rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Stats Section */
.stats {
    background: var(--gradient);
    color: var(--white);
    padding: 4rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 5rem;
    color: var(--dark-color);
    opacity: 0.15;
}

.testimonial-text {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-style: italic;
    line-height: 1.8;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: bold;
    font-size: 1.2rem;
    border: 3px solid var(--dark-color);
}

.author-info h4 {
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.author-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    height: 300px;
    cursor: pointer;
    border: 2px solid #e5e5e5;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    filter: grayscale(50%);
}

.gallery-item:hover img {
    transform: scale(1.1);
    filter: grayscale(0%);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.gallery-overlay span {
    color: var(--white);
    font-size: 2rem;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    border: 2px solid #e5e5e5;
    transition: all 0.3s ease;
}

.contact-info-card:hover {
    border-color: var(--dark-color);
    transform: translateY(-5px);
}

.contact-info-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-weight: 700;
    font-size: 1.3rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--dark-color);
}

.contact-info-card p {
    color: var(--text-light);
    line-height: 1.8;
}

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

.map-container {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 400px;
    border: 3px solid var(--dark-color);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 4rem 0 2rem;
    border-top: 5px solid var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: var(--white);
}

.social-links a svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.social-links a:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: var(--white);
    border: 3px solid var(--white);
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    z-index: 999;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
    color: var(--dark-color);
    border-color: var(--dark-color);
}

.scroll-top.show {
    display: flex;
}

/* WhatsApp Sticky Button */
.whatsapp-sticky {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    cursor: pointer;
    z-index: 999;
    transition: all 0.3s ease;
    text-decoration: none;
}

.whatsapp-sticky:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
    background: #20BA5A;
}

.whatsapp-sticky svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

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

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

/* Responsive Design */
@media (max-width: 968px) {
    .top-bar {
        display: none;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    /* Hero Slider Responsive */
    .hero-slider {
        height: 500px;
    }

    .slide-title {
        font-size: 2.5rem;
    }

    .slide-text {
        font-size: 1.1rem;
    }

    .slider-nav {
        width: 50px;
        height: 50px;
        font-size: 2rem;
    }

    .slider-prev {
        left: 15px;
    }

    .slider-next {
        right: 15px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    /* About Hero Responsive */
    .about-hero {
        height: 450px;
    }

    .about-hero-content h1 {
        font-size: 3rem;
    }

    .about-hero-content p {
        font-size: 1.2rem;
    }

    .about-hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .about-hero-stats .stat-item h3 {
        font-size: 2.5rem;
    }

    /* WhatsApp Button Responsive */
    .whatsapp-sticky {
        bottom: 80px;
        right: 20px;
        width: 55px;
        height: 55px;
    }

    .whatsapp-sticky svg {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 640px) {
    .hero-text h1 {
        font-size: 2rem;
    }

    .section {
        padding: 3rem 0;
    }

    .products-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        gap: 1rem;
    }

    .top-bar {
        display: none;
    }

    .top-bar .container {
        justify-content: center;
        text-align: center;
    }

    /* Hero Slider Mobile */
    .hero-slider {
        height: 450px;
    }

    .slide-title {
        font-size: 2rem;
    }

    .slide-text {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .slider-nav {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .slider-prev {
        left: 10px;
    }

    .slider-next {
        right: 10px;
    }

    .slider-indicators {
        bottom: 20px;
    }

    .indicator {
        width: 10px;
        height: 10px;
    }

    .indicator.active {
        width: 30px;
    }

    /* About Hero Mobile */
    .about-hero {
        height: 600px;
    }

    .about-hero-content h1 {
        font-size: 2.2rem;
    }

    .about-hero-content p {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

    .about-hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .about-hero-stats .stat-item {
        padding: 1.5rem 1rem;
    }

    .about-hero-stats .stat-item h3 {
        font-size: 2rem;
    }

    .about-hero-stats .stat-item p {
        font-size: 0.9rem;
    }

    /* WhatsApp Button Mobile */
    .whatsapp-sticky {
        bottom: 70px;
        right: 15px;
        width: 50px;
        height: 50px;
    }

    .whatsapp-sticky svg {
        width: 26px;
        height: 26px;
    }

    .scroll-top {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.bg-light {
    background-color: var(--light-color);
    border-top: 1px solid #e5e5e5;
    border-bottom: 1px solid #e5e5e5;
}

.bg-white {
    background-color: var(--white);
}

/* Enhanced Black & White Theme Styling */
.product-card {
    border: 2px solid #e5e5e5;
    transition: all 0.4s ease;
}

.product-card:hover {
    border-color: var(--dark-color);
    transform: translateY(-10px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.feature-card {
    border: 1px solid #e5e5e5;
    transition: all 0.4s ease;
}

.feature-card:hover {
    border-color: var(--dark-color);
    background: var(--light-color);
}

.hero {
    background: var(--gradient);
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--white));
}

.stats {
    background: var(--gradient);
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--white);
}

.stats::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--white);
}

.product-image {
    border-bottom: 3px solid var(--dark-color);
}

.testimonial-card {
    border: 2px solid #e5e5e5;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    border-color: var(--dark-color);
    transform: translateY(-5px);
}

.section-title h2::after {
    background: var(--dark-color);
}

.nav-menu a::after {
    background: var(--dark-color);
}

.logo {
    color: var(--dark-color);
}

.top-bar {
    background: var(--dark-color);
}

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

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

.btn-primary {
    background: var(--dark-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 2px solid var(--dark-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    background: var(--white);
    color: var(--dark-color);
}