:root {
            --primary: #00a699;
            --secondary: #008489;
            --dark: #001529;
            --bg: #f4f7f6;
            --text: #1a1a1a;
            --white: #ffffff;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: var(--text); background: var(--bg); }
        
        /* Layout */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: var(--dark); color: var(--white); padding: 1rem 0; display: flex; justify-content: space-between; align-items: center; }
        
        /* Hero Section */
        .hero { 
            height: 500px; 
            background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('/assets/cpi_windwand_hero_e0b04e968b.jpg'); 
            background-size: cover; 
            background-position: center; 
            display: flex; 
            align-items: center; 
            color: var(--white);
            text-align: center;
        }

        /* Buttons & Components */
        .btn { display: inline-block; padding: 10px 20px; border-radius: 4px; text-decoration: none; font-weight: bold; cursor: pointer; border: none; }
        .btn-primary { background: var(--primary); color: var(--white); }
        .btn-secondary { background: var(--secondary); color: var(--white); }
        
        /* Nav */
        .nav-links { display: flex; gap: 20px; list-style: none; }
        .nav-links a { color: var(--white); text-decoration: none; }

        /* Footer */
        footer { background: var(--dark); color: #ccc; padding: 2rem 0; text-align: center; margin-top: 3rem; }

        /* Responsive */
        @media (max-width: 768px) {
            .hero { height: 300px; }
            .nav-links { display: none; }
        }