* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html, body {
            height: 100%;
        }

        body {
            font-family: Arial, Helvetica, sans-serif;
            color: #fff;
            background: #000;
            line-height: 1.6;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.8) 100%),
                        radial-gradient(ellipse at center, #1a0000 0%, #000000 100%);
            z-index: -1;
        }

        a {
            text-decoration: none;
            color: #f00;
            transition: color 0.3s ease;
        }

        a:hover {
            color: #a4a4a4;
        }

        .wrapper {
            max-width: 1020px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            text-align: center;
            padding: 60px 20px 40px;
        }

        nav {
            margin-top: 30px;
            text-align: center;
        }

        nav ul {
            list-style: none;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        nav ul li {
            display: inline-block;
        }

        nav ul li a {
            display: block;
            padding: 8px 16px;
            color: #f00;
            border: 1px solid #f00;
            font-size: 18px;
            font-weight: normal;
            text-transform: capitalize;
            transition: all 0.3s ease;
        }

        nav ul li a:hover {
            color: #a4a4a4;
            border-color: #a4a4a4;
        }

        main {
            padding: 40px 0;
        }

        h1 {
            font-size: 3em;
            color: #f00;
            text-align: center;
            margin-bottom: 40px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
            line-height: 1.2;
        }

        article {
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid #333;
            border-radius: 10px;
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: 0 0 20px rgba(255, 0, 0, 0.1);
        }

        article h2 {
            color: #f00;
            font-size: 2em;
            margin-top: 30px;
            margin-bottom: 15px;
        }

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

        article h3 {
            color: #ff4444;
            font-size: 1.5em;
            margin-top: 25px;
            margin-bottom: 12px;
        }

        article h4 {
            color: #ff6666;
            font-size: 1.2em;
            margin-top: 20px;
            margin-bottom: 10px;
        }

        article p {
            margin-bottom: 15px;
            font-size: 16px;
            line-height: 1.8;
            color: #ddd;
        }

        article ul, article ol {
            margin-left: 25px;
            margin-bottom: 15px;
            color: #ddd;
        }

        article li {
            margin-bottom: 8px;
        }

        .transition-section {
            background: rgba(20, 0, 0, 0.5);
            border-left: 3px solid #f00;
            padding: 30px;
            margin-bottom: 40px;
            border-radius: 5px;
        }

        .transition-section p {
            font-size: 16px;
            line-height: 1.8;
            color: #ddd;
            margin-bottom: 15px;
        }

        .links-section {
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid #333;
            border-radius: 10px;
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: 0 0 20px rgba(255, 0, 0, 0.1);
        }

        .links-section h3 {
            color: #f00;
            font-size: 1.8em;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #333;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px 30px;
            margin-bottom: 35px;
        }

        .links-section ul:last-child {
            margin-bottom: 0;
        }

        .links-section li {
            padding: 8px 0;
            border-bottom: 1px solid #1a1a1a;
        }

        .links-section li a {
            color: #f00;
            font-size: 15px;
            display: block;
            transition: all 0.3s ease;
            padding-left: 20px;
            position: relative;
        }

        .links-section li a::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: #f00;
            transition: left 0.3s ease;
        }

        .links-section li a:hover {
            color: #ff4444;
        }

        .links-section li a:hover::before {
            left: 5px;
        }

        footer {
            text-align: center;
            padding: 30px 20px;
            border-top: 1px solid #333;
            margin-top: 60px;
            color: #666;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2em;
                margin-bottom: 30px;
            }

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

            nav ul li {
                width: 100%;
                max-width: 300px;
            }

            nav ul li a {
                width: 100%;
            }

            article {
                padding: 25px;
            }

            article h2 {
                font-size: 1.6em;
            }

            article h3 {
                font-size: 1.3em;
            }

            .transition-section {
                padding: 20px;
            }

            .links-section {
                padding: 25px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .links-section h3 {
                font-size: 1.4em;
            }
        }

        @media (max-width: 480px) {
            header {
                padding: 40px 20px 30px;
            }

            h1 {
                font-size: 1.6em;
            }

            nav ul li a {
                font-size: 16px;
                padding: 6px 12px;
            }

            article {
                padding: 20px;
            }

            article h2 {
                font-size: 1.4em;
            }

            article p, .transition-section p {
                font-size: 14px;
            }

            .links-section {
                padding: 20px;
            }

            .links-section h3 {
                font-size: 1.2em;
            }

            .links-section li a {
                font-size: 14px;
            }
        }