* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #f5f5f5;
        }
        
        #wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 20px rgba(0,0,0,0.1);
        }
        
        header {
            background: linear-gradient(135deg, #1a5490 0%, #2d7ab9 100%);
            color: white;
            padding: 2rem 2rem 0;
        }
        
        header h4 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            font-weight: 300;
        }
        
        header h4 a {
            color: white;
            text-decoration: none;
        }
        
        .header-banner {
            width: 100%;
            height: 130px;
            background: linear-gradient(to bottom, rgba(26,84,144,0.3), rgba(26,84,144,0.7)), 
                        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 130"><rect fill="%23164270" width="1200" height="130"/></svg>');
            background-size: cover;
            margin: 0 -2rem;
        }
        
        nav {
            background: #164270;
            padding: 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .menu ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            padding: 0;
        }
        
        .menu > ul > li {
            position: relative;
        }
        
        .menu > ul > li > a {
            display: block;
            padding: 1rem 1.5rem;
            color: white;
            text-decoration: none;
            transition: background 0.3s;
        }
        
        .menu > ul > li > a:hover {
            background: #1a5490;
        }
        
        main {
            padding: 2rem;
        }
        
        h1 {
            color: #164270;
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #2d7ab9;
        }
        
        h2 {
            color: #1a5490;
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
        }
        
        h3 {
            color: #164270;
            font-size: 1.4rem;
            margin: 1.5rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 4px solid #2d7ab9;
        }
        
        article {
            margin-bottom: 2rem;
        }
        
        article p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        
        .transition-section {
            margin: 2rem 0;
            padding: 1.5rem;
            background: #f8f9fa;
            border-radius: 8px;
        }
        
        .links-section {
            margin: 2rem 0;
            padding: 2rem;
            background: linear-gradient(to bottom, #f8f9fa 0%, #e9ecef 100%);
            border-radius: 8px;
        }
        
        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 2rem;
            margin-top: 1rem;
        }
        
        .links-section li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        
        .links-section a {
            color: #164270;
            text-decoration: none;
            transition: color 0.3s;
            display: inline-block;
            padding: 0.3rem 0;
        }
        
        .links-section a:hover {
            color: #2d7ab9;
            padding-left: 0.5rem;
        }
        
        .links-section a:before {
            content: "→ ";
            color: #2d7ab9;
        }
        
        footer {
            background: #164270;
            color: white;
            padding: 2rem;
            text-align: center;
            margin-top: 3rem;
        }
        
        footer a {
            color: #a8d0f0;
            text-decoration: none;
        }
        
        footer a:hover {
            color: white;
            text-decoration: underline;
        }
        
        @media (max-width: 768px) {
            header {
                padding: 1rem 1rem 0;
            }
            
            header h4 {
                font-size: 1.4rem;
            }
            
            .header-banner {
                height: 80px;
                margin: 0 -1rem;
            }
            
            .menu > ul {
                flex-direction: column;
            }
            
            .menu > ul > li > a {
                padding: 0.8rem 1rem;
            }
            
            main {
                padding: 1rem;
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            h2 {
                font-size: 1.4rem;
            }
            
            h3 {
                font-size: 1.2rem;
            }
            
            .links-section ul {
                column-count: 1;
            }
            
            .transition-section {
                padding: 1rem;
            }
            
            .links-section {
                padding: 1rem;
            }
        }
        
        @media (min-width: 769px) and (max-width: 1024px) {
            .links-section ul {
                column-count: 2;
            }
        }