* {
            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;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background-color: #fff;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
        }

        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2rem 1.5rem;
            text-align: center;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 300;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin: 0;
        }

        nav {
            background-color: #2c3e50;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
        }

        nav ul li {
            position: relative;
        }

        nav ul li a {
            display: block;
            color: white;
            text-decoration: none;
            padding: 1rem 1.5rem;
            transition: background-color 0.3s ease;
        }

        nav ul li a:hover {
            background-color: #34495e;
        }

        nav ul li ul {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background-color: #34495e;
            min-width: 200px;
            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 rgba(255, 255, 255, 0.1);
        }

        article {
            padding: 3rem 2rem;
            max-width: 900px;
            margin: 0 auto;
        }

        article h2 {
            color: #667eea;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.8rem;
        }

        article h3 {
            color: #764ba2;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
            font-size: 1.4rem;
        }

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

        article img {
            max-width: 100%;
            height: auto;
            margin: 1.5rem 0;
            border-radius: 8px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }

        article strong {
            color: #764ba2;
        }

        .transition-section {
            padding: 2rem;
            background-color: #f8f9fa;
            border-top: 3px solid #667eea;
            border-bottom: 3px solid #667eea;
            margin: 2rem 0;
        }

        .transition-section p {
            max-width: 900px;
            margin: 0 auto 1rem auto;
            text-align: justify;
            font-size: 1.05rem;
        }

        .links-section {
            padding: 3rem 2rem;
            background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
        }

        .links-section h3 {
            color: #667eea;
            text-align: center;
            font-size: 2rem;
            margin-bottom: 2rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .links-section ul {
            list-style: none;
            max-width: 1000px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.5rem 2rem;
        }

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

        .links-section ul li a {
            color: #2c3e50;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
            padding: 0.25rem 0;
            border-bottom: 2px solid transparent;
        }

        .links-section ul li a:hover {
            color: #667eea;
            border-bottom-color: #667eea;
            transform: translateX(5px);
        }

        footer {
            background-color: #2c3e50;
            color: white;
            text-align: center;
            padding: 2rem 1.5rem;
            margin-top: 3rem;
        }

        footer p {
            margin: 0.5rem 0;
            font-size: 0.95rem;
        }

        hr {
            border: none;
            border-top: 2px solid #e0e0e0;
            margin: 2rem auto;
            max-width: 800px;
        }

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

            nav ul {
                flex-direction: column;
            }

            nav ul li {
                width: 100%;
                text-align: center;
            }

            nav ul li ul {
                position: static;
                display: none;
            }

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

            article {
                padding: 2rem 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }

            .transition-section {
                padding: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
                letter-spacing: 1px;
            }

            header {
                padding: 1.5rem 1rem;
            }

            nav ul li a {
                padding: 0.75rem 1rem;
            }

            article {
                padding: 1.5rem 1rem;
            }

            .links-section {
                padding: 2rem 1rem;
            }
        }