:root {
            --bg-body: #ffffff;
            --nav-bg: #cccccc;
            --accent: #65b43d;
            --text-main: #333;
            --text-alt: #666;
            --font-main: Arial, Helvetica, Verdana, sans-serif;
        }

        body { font-family: var(--font-main); margin: 0; padding: 0; color: var(--text-main); background: var(--bg-body); }
        
        header { background: var(--nav-bg); padding: 1rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; border-bottom: 2px solid #999; }
        
        .logo-area { display: flex; align-items: center; gap: 15px; }
        .logo-area img { height: 60px; object-fit: contain; }

        nav { display: flex; flex-wrap: wrap; gap: 10px; }
        nav a { text-decoration: none; color: var(--text-alt); font-weight: bold; font-size: 0.9rem; padding: 5px; }
        nav a:hover { color: #000; }

        .hero { width: 100%; height: 300px; background: #eee; display: flex; align-items: center; justify-content: center; position: relative; }
        .hero::before { content: "Mainfränkisches Museum Würzburg"; font-size: 2rem; color: var(--text-alt); }

        .main-content { max-width: 1000px; margin: 20px auto; padding: 0 1rem; }

        .nav-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 10px; margin-bottom: 20px; }
        .nav-item { text-align: center; }
        .nav-item img { width: 55px; height: 55px; display: block; margin: 0 auto; }

        .construction-notice { padding: 40px; border: 2px dashed #ccc; text-align: center; margin: 20px 0; color: #666; }
        .construction-notice::before { content: "🚧"; font-size: 3rem; display: block; margin-bottom: 10px; }

        footer { background: #333; color: #fff; padding: 2rem; text-align: center; margin-top: 40px; }
        footer a { color: #84b8d9; text-decoration: none; }

        @media (max-width: 768px) {
            header { flex-direction: column; text-align: center; }
            .nav-grid { grid-template-columns: repeat(3, 1fr); }
        }