:root {
            --primary: #0073aa;
            --secondary: #ff7900;
            --dark: #000;
            --light: #fff;
            --gray: #f2f2f2;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; color: #333; }
        
        header { background: var(--dark); padding: 1rem 5%; display: flex; justify-content: space-between; align-items: center; }
        .logo { height: 50px; }
        nav ul { list-style: none; display: flex; gap: 15px; }
        nav a { color: var(--light); text-decoration: none; font-size: 0.9rem; }
        
        .hero { 
            height: 60vh; 
            background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('/assets/Startseite1.jpg'); 
            background-size: cover; 
            background-position: center; 
            display: flex; 
            flex-direction: column; 
            justify-content: center; 
            align-items: center; 
            text-align: center; 
            color: var(--light); 
        }

        .container { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
        .btn { padding: 12px 24px; background: var(--secondary); color: var(--light); text-decoration: none; border-radius: 50px; font-weight: bold; margin: 10px; display: inline-block; }
        
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 2rem; }
        .card { border: 1px solid #ddd; padding: 20px; border-radius: 8px; }
        .card img { width: 100%; border-radius: 4px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }

        footer { background: #111; color: #888; text-align: center; padding: 2rem; margin-top: 3rem; font-size: 0.8rem; }

        @media (max-width: 768px) {
            nav { display: none; }
            .hero { height: 40vh; }
        }