*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #0066cc;--primary-dark: #004c99;--secondary: #00b4d8;--accent: #48cae4;--success: #06d6a0;--warning: #ffd60a;--danger: #ef476f;--dark: #1a1a1a;--gray-dark: #333;--gray: #666;--gray-light: #e0e0e0;--white: #ffffff;--bg-light: #f8f9fa}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--dark);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease;box-shadow:0 2px 10px #0000000d}.navbar.scrolled{box-shadow:0 2px 20px #0000001a}.nav-content{display:flex;justify-content:space-between;align-items:center;padding:1rem 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#0000001a;transform:translate(-100%);transition:transform .3s ease}.nav-links.active{transform:translate(0)}.menu-toggle{display:block}.hero-grid{grid-template-columns:1fr;gap:3rem}.hero-image{order:-1}.product-showcase{max-width:400px}.product-showcase-large{max-width:450px}.product-badge{bottom:-10px;right:-10px;padding:1rem}.hero-text h1{font-size:2.5rem}.hero-stats{flex-wrap:wrap;gap:2rem}.hero-buttons{flex-direction:column}.about-grid,.contact-grid{grid-template-columns:1fr;gap:2rem}.functions-grid,.steps-grid,.gallery-grid,.testimonials-grid,.footer-content,.backwash-steps{grid-template-columns:1fr}.section-header h2{font-size:2rem}}@media (max-width: 576px){.hero-text h1{font-size:2rem}.hero-text p{font-size:1rem}.btn-primary.large,.btn-secondary.large{padding:.875rem 1.5rem;font-size:1rem}.product-showcase{max-width:300px}.product-showcase-large{max-width:350px}.product-badge{padding:.75rem}.product-badge strong{font-size:.9rem}.product-badge span{font-size:.75rem}.stat-item h3{font-size:2rem}.video-title{font-size:1.3rem;flex-direction:column}}