* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #fbbf24;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f9fafb;
            --bg-white: #ffffff;
            --border-color: #e5e7eb;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-light);
            font-size: 16px;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--secondary-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            font-weight: 600;
            padding: 0.5rem;
            border-radius: 4px;
        }
        nav a:hover {
            background-color: var(--bg-light);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary-color), #2563eb);
            color: white;
            padding: 4rem 0;
            text-align: center;
            margin-bottom: 2rem;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        article {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        aside {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1, h2, h3, h4 {
            color: var(--text-dark);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--text-dark);
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .content-section {
            margin-bottom: 2.5rem;
        }
        .info-box {
            background-color: #f0f9ff;
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background-color: #fef3c7;
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin: 0 auto;
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-style: italic;
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
            border-radius: 8px;
            overflow: hidden;
        }
        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background-color: var(--bg-light);
        }
        .btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background-color: var(--primary-color);
            color: white;
            border-radius: 6px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            min-height: 44px;
            min-width: 44px;
        }
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
            color: white;
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-accent {
            background-color: var(--accent-color);
            color: var(--text-dark);
        }
        .search-box {
            display: flex;
            margin-bottom: 2rem;
        }
        .search-box input {
            flex: 1;
            padding: 0.75rem;
            border: 2px solid var(--border-color);
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-box button {
            border-radius: 0 6px 6px 0;
        }
        .rating-system {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stars {
            display: flex;
            gap: 0.25rem;
        }
        .star {
            color: #d1d5db;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-color);
        }
        .social-sharing {
            display: flex;
            gap: 0.75rem;
            margin: 2rem 0;
        }
        .social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--bg-light);
            color: var(--text-dark);
            transition: var(--transition);
        }
        .social-btn:hover {
            transform: translateY(-3px);
            color: white;
        }
        .facebook:hover { background-color: #1877f2; }
        .twitter:hover { background-color: #1da1f2; }
        .whatsapp:hover { background-color: #25d366; }
        .reddit:hover { background-color: #ff4500; }
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        footer {
            background-color: var(--text-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #d1d5db;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.75rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #374151;
            color: #9ca3af;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                width: 100%;
                border-bottom: 1px solid var(--border-color);
            }
            nav a {
                display: block;
                padding: 1rem;
            }
            .hamburger {
                display: block;
            }
            article {
                padding: 1.5rem;
            }
            .hero {
                padding: 3rem 0;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            table {
                display: block;
                overflow-x: auto;
            }
            .back-to-top {
                bottom: 1rem;
                right: 1rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            .btn {
                padding: 0.75rem 1rem;
                font-size: 0.9rem;
            }
            .rating-system {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media print {
            header, footer, aside, .social-sharing, .back-to-top, .search-box, .rating-system {
                display: none;
            }
            body {
                font-size: 12pt;
                color: black;
                background: white;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
            h1, h2, h3 {
                color: black;
            }
        }