* {
            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-color: #f5f5f5;
        }

        header {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 2rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            text-align: center;
            color: white;
        }

        nav {
            background-color: #fff;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        nav .container {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            padding: 0;
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            padding: 0;
            margin: 0;
        }

        nav ul li {
            position: relative;
        }

        nav ul li a {
            display: block;
            padding: 1rem 1.5rem;
            color: #1e3c72;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        nav ul li a:hover {
            background-color: #1e3c72;
            color: white;
        }

        nav ul li ul {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background-color: white;
            min-width: 200px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            flex-direction: column;
        }

        nav ul li:hover > ul {
            display: flex;
        }

        nav ul li ul li {
            width: 100%;
        }

        nav ul li ul li a {
            padding: 0.75rem 1.5rem;
            border-bottom: 1px solid #f0f0f0;
        }

        main {
            background-color: white;
            margin: 2rem auto;
            padding: 3rem;
            max-width: 1200px;
            box-shadow: 0 0 20px rgba(0,0,0,0.1);
            border-radius: 8px;
        }

        article {
            margin-bottom: 3rem;
        }

        article h2, article h3, article h4, article h5, article h6 {
            color: #1e3c72;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        article h2 {
            font-size: 2rem;
            border-bottom: 3px solid #2a5298;
            padding-bottom: 0.5rem;
        }

        article h3 {
            font-size: 1.5rem;
        }

        article h4 {
            font-size: 1.3rem;
        }

        article p {
            margin-bottom: 1rem;
            text-align: justify;
            font-size: 1.05rem;
        }

        article strong {
            color: #1e3c72;
        }

        article a {
            color: #2a5298;
            text-decoration: none;
            border-bottom: 1px solid #2a5298;
            transition: color 0.3s ease;
        }

        article a:hover {
            color: #1e3c72;
        }

        .transition-section {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 4px solid #2a5298;
        }

        .transition-section p {
            margin-bottom: 1rem;
            font-size: 1.05rem;
        }

        .links-section {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
            margin-top: 2rem;
            border: 1px solid #e0e0e0;
        }

        .links-section h3 {
            color: #1e3c72;
            margin-bottom: 1rem;
            font-size: 1.4rem;
            margin-top: 1.5rem;
        }

        .links-section h3:first-child {
            margin-top: 0;
        }

        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 2rem;
            margin-bottom: 1.5rem;
        }

        .links-section ul li {
            margin-bottom: 0.5rem;
            break-inside: avoid;
        }

        .links-section ul li a {
            color: #2a5298;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
            padding: 0.3rem 0;
        }

        .links-section ul li a:before {
            content: "→ ";
            margin-right: 0.5rem;
        }

        .links-section ul li a:hover {
            color: #1e3c72;
            padding-left: 0.5rem;
        }

        footer {
            background-color: #1e3c72;
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }

        footer .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        footer ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        footer ul li a {
            color: white;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        footer ul li a:hover {
            color: #a8c0e0;
        }

        footer .copyright {
            margin-top: 1rem;
            opacity: 0.8;
            font-size: 0.9rem;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }

            main {
                padding: 1.5rem;
                margin: 1rem;
            }

            nav ul {
                flex-direction: column;
                width: 100%;
            }

            nav ul li {
                width: 100%;
            }

            nav ul li a {
                padding: 0.75rem 1rem;
                border-bottom: 1px solid #f0f0f0;
            }

            nav ul li ul {
                position: static;
                box-shadow: none;
                background-color: #f8f9fa;
            }

            .links-section ul {
                column-count: 1;
            }

            footer .container {
                flex-direction: column;
                gap: 1rem;
            }

            footer ul {
                flex-direction: column;
                gap: 0.5rem;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.3rem;
            }

            main {
                padding: 1rem;
            }
        }