* {
            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, #2c5f8d 0%, #4a7ba7 100%);
            color: white;
            padding: 2rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        header h1 {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        nav {
            background-color: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
        }

        nav ul {
            list-style: none;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            padding: 0.5rem;
        }

        nav ul li {
            margin: 0.5rem 0.2rem;
        }

        nav ul li a {
            color: white;
            text-decoration: none;
            padding: 0.5rem 1.2rem;
            display: block;
            border-radius: 5px;
            transition: background-color 0.3s ease;
            font-weight: 500;
        }

        nav ul li a:hover {
            background-color: rgba(255,255,255,0.2);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        article {
            background: white;
            margin: 2rem auto;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        }

        article h2,
        article h3 {
            color: #2c5f8d;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        article h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #4a7ba7;
            padding-bottom: 0.5rem;
        }

        article h3 {
            font-size: 1.4rem;
        }

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

        article ul {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }

        article ul li {
            margin-bottom: 0.5rem;
        }

        article a {
            color: #4a7ba7;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: border-bottom 0.3s ease;
        }

        article a:hover {
            border-bottom: 1px solid #4a7ba7;
        }

        .transition-section {
            background: white;
            margin: 2rem auto;
            padding: 2rem 2.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        }

        .transition-section p {
            margin-bottom: 1rem;
            color: #555;
        }

        .links-section {
            background: white;
            margin: 2rem auto 3rem;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        }

        .links-section h3 {
            color: #2c5f8d;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.4rem;
            border-left: 4px solid #4a7ba7;
            padding-left: 1rem;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 2rem;
            margin-bottom: 2rem;
        }

        .links-section ul li {
            padding-left: 1.5rem;
            position: relative;
        }

        .links-section ul li:before {
            content: "→";
            position: absolute;
            left: 0;
            color: #4a7ba7;
            font-weight: bold;
        }

        .links-section ul li a {
            color: #2c5f8d;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .links-section ul li a:hover {
            color: #4a7ba7;
            text-decoration: underline;
        }

        footer {
            background: linear-gradient(135deg, #2c5f8d 0%, #4a7ba7 100%);
            color: white;
            text-align: center;
            padding: 1.5rem 0;
            margin-top: 3rem;
        }

        footer p {
            margin: 0;
        }

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

            nav ul {
                flex-direction: column;
                align-items: center;
            }

            nav ul li {
                margin: 0.3rem 0;
            }

            article,
            .transition-section,
            .links-section {
                padding: 1.5rem;
                margin: 1rem auto;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }
        }

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

            article,
            .transition-section,
            .links-section {
                padding: 1rem;
            }
        }