* {
            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: linear-gradient(135deg, #f5f0e8 0%, #e8dcc8 100%);
            background-attachment: fixed;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M50 10 L55 30 L50 50 L45 30 Z" fill="%23d4c4a8" opacity="0.1"/></svg>');
            background-size: 100px 100px;
            pointer-events: none;
            z-index: 0;
        }

        header {
            background: linear-gradient(135deg, #8b4513 0%, #a0522d 100%);
            color: #fff;
            padding: 2rem 1rem;
            text-align: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            position: relative;
            z-index: 1;
        }

        header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #daa520, #cd853f, #daa520);
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            color: #fff;
        }

        nav {
            background: #6b3410;
            padding: 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        nav ul {
            list-style: none;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
        }

        nav li {
            margin: 0;
        }

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

        nav a:hover {
            background: #8b4513;
            color: #daa520;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 3px;
            background: #daa520;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        nav a:hover::after {
            width: 80%;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1rem;
            position: relative;
            z-index: 1;
        }

        article {
            background: #fff;
            padding: 3rem;
            margin-bottom: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            border-left: 5px solid #8b4513;
        }

        article h2 {
            color: #8b4513;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.8rem;
            border-bottom: 2px solid #daa520;
            padding-bottom: 0.5rem;
        }

        article h2:first-child {
            margin-top: 0;
        }

        article h3 {
            color: #a0522d;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
            font-size: 1.4rem;
        }

        article h4 {
            color: #8b4513;
            margin-top: 1.2rem;
            margin-bottom: 0.6rem;
            font-size: 1.2rem;
        }

        article p {
            margin-bottom: 1.2rem;
            text-align: justify;
            color: #444;
        }

        .transition-section {
            background: #fff;
            padding: 2rem 3rem;
            margin-bottom: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .transition-section p {
            color: #555;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .links-section {
            background: #fff;
            padding: 3rem;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
        }

        .links-section h2 {
            color: #8b4513;
            margin-bottom: 2rem;
            font-size: 2rem;
            text-align: center;
            border-bottom: 3px solid #daa520;
            padding-bottom: 1rem;
        }

        .links-section h3 {
            color: #a0522d;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.5rem;
            padding-left: 0.5rem;
            border-left: 4px solid #daa520;
        }

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

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

        .links-section li {
            margin: 0;
        }

        .links-section a {
            color: #6b3410;
            text-decoration: none;
            padding: 0.6rem 1rem;
            display: block;
            background: #f9f6f0;
            border-radius: 5px;
            transition: all 0.3s ease;
            border-left: 3px solid #daa520;
        }

        .links-section a:hover {
            background: #8b4513;
            color: #fff;
            transform: translateX(5px);
            border-left-color: #ffd700;
        }

        footer {
            background: linear-gradient(135deg, #6b3410 0%, #8b4513 100%);
            color: #fff;
            text-align: center;
            padding: 2rem 1rem;
            margin-top: 3rem;
            box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 1;
        }

        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #daa520, #cd853f, #daa520);
        }

        footer p {
            margin: 0.5rem 0;
            opacity: 0.9;
        }

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

            nav ul {
                flex-direction: column;
            }

            nav a {
                padding: 0.8rem 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

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

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

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }
        }

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

            .container {
                padding: 1rem 0.5rem;
            }

            article,
            .transition-section,
            .links-section {
                padding: 1rem;
                border-radius: 5px;
            }

            nav a {
                padding: 0.7rem;
                font-size: 0.9rem;
            }
        }