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

:root {
    --primary-color: #0066cc;
    --primary-dark: #004c99;
    --primary-light: #e6f0ff;
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --section-padding: 100px 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 0.8rem 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.logo:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.logo span {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 500;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.demo-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0, 102, 204, 0.3);
}

.demo-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.4);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../assets/images/public/using-clean-water-for-your-home.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    padding: 150px 0;
    text-align: center;
    position: relative;
}

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

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.stat-text {
    font-size: 1rem;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-btn {
    background: #4CAF50;
    color: #fff;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.2);
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: var(--white);
    position: relative;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text h2 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 1rem;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--primary-color);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 500;
}

/* Products Section */
.products {
    padding: var(--section-padding);
    background: var(--white);
}

.products h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 4rem;
    font-size: 1.2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid #eee;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding-bottom: 1.5rem;
}

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

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: contain;
    transition: var(--transition);
    padding: 1.5rem;
    background: var(--white);
    border-bottom: 1px solid #eee;
}

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

.product-card h3 {
    padding: 1.2rem 1.2rem 0.5rem;
    font-size: 1.2rem;
    color: var(--primary-color);
    line-height: 1.4;
}

.product-description {
    padding: 0 1.2rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1rem;
    flex-grow: 1;
}

.product-features {
    list-style: none;
    padding: 0 1.2rem;
    margin-bottom: 0;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
}

.product-features i {
    color: var(--primary-color);
    font-size: 1rem;
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background: var(--white);
}

.services h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

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

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Why Choose Us Section */
.why-us {
    padding: var(--section-padding);
    background: var(--white);
}

.why-us h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.8rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

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

.benefit-item span {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: var(--white);
    position: relative;
}

.contact h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-form:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    border: 2px solid #e1e1e1;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 4px var(--primary-light);
}

.submit-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

.contact-info {
    background: var(--primary-light);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    background: var(--primary-light);
    padding: 0.8rem;
    border-radius: 50%;
    transition: var(--transition);
}

.info-item:hover i {
    transform: scale(1.1);
    background: var(--primary-color);
    color: var(--white);
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #25D366;
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    transition: var(--transition);
    z-index: 1000;
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.whatsapp-btn i {
    font-size: 1.5rem;
}

/* Floating Call Button */
.call-btn {
    position: fixed;
    bottom: 7.5rem;
    right: 2rem;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.2);
    transition: var(--transition);
    z-index: 1000;
}

.call-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.3);
}

.call-btn i {
    font-size: 1.5rem;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: var(--white);
    padding: 80px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 3rem;
}

.footer-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.footer-info p {
    color: #999;
    font-size: 1.1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-section h4 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: #999;
    text-decoration: none;
    transition: var(--transition);
    font-size: 1.1rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #999;
    font-size: 1.1rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    html {
        font-size: 15px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
}

@media (max-width: 992px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 1rem;
        box-shadow: var(--shadow);
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .about-stats {
        flex-direction: column;
        gap: 2rem;
    }
    
    .about-text h2 {
        font-size: 2.2rem;
    }
    
    .about-text p {
        font-size: 1rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-form,
    .contact-info {
        padding: 1.5rem;
    }
    
    .whatsapp-btn {
        bottom: 1rem;
        right: 1rem;
        padding: 0.8rem 1.5rem;
    }
    
    .whatsapp-btn span {
        display: none;
    }
    
    .whatsapp-btn i {
        font-size: 1.8rem;
        margin: 0;
    }

    .call-btn {
        bottom: 6.5rem;
        right: 1rem;
        padding: 0.8rem 1.5rem;
    }
    .call-btn span {
        display: none;
    }
    .call-btn i {
        font-size: 1.8rem;
        margin: 0;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .service-card,
    .product-card {
        padding: 1.5rem;
    }
    
    .whatsapp-btn span {
        display: none;
    }
    
    .whatsapp-btn {
        padding: 1rem;
        border-radius: 50%;
    }

    .contact-form,
    .contact-info {
        padding: 1.5rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
        max-width: 300px;
    }
}

.hero .stat-text, .about .stat-text {
    color: var(--white) !important;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}