* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: #202122;
            background-color: #f8f9fa;
            max-width: 1600px;
            margin: 0 auto;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a {
            color: white;
            text-decoration: none;
            transition: color 0.3s;
        }
        .logo a:hover {
            color: #ffd700;
        }
        .search-form {
            display: flex;
            background: white;
            border-radius: 50px;
            padding: 5px;
            width: 300px;
        }
        .search-input {
            border: none;
            padding: 10px 15px;
            width: 100%;
            border-radius: 50px;
            outline: none;
        }
        .search-btn {
            background: #3f51b5;
            border: none;
            color: white;
            padding: 10px 20px;
            border-radius: 50px;
            cursor: pointer;
            transition: background 0.3s;
            min-width: 44px;
            min-height: 44px;
        }
        .search-btn:hover {
            background: #283593;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 10px;
            min-width: 44px;
            min-height: 44px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s;
            display: inline-block;
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
        }
        nav a:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }
        .container {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 2rem;
            padding: 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        main {
            background: white;
            border-radius: 8px;
            padding: 2rem;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        h1 {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #3f51b5;
        }
        h2 {
            font-size: 1.8rem;
            color: #283593;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e8eaf6;
        }
        h3 {
            font-size: 1.4rem;
            color: #3949ab;
            margin: 1.5rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #5c6bc0;
            margin: 1rem 0;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #424242;
            background: #e8eaf6;
            padding: 1rem;
            border-radius: 6px;
            border-left: 4px solid #3f51b5;
            margin-bottom: 2rem;
        }
        .card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            margin-bottom: 1.5rem;
        }
        .info-box {
            background: #e8f5e9;
            border-left: 4px solid #4caf50;
            padding: 1rem;
            margin: 1.5rem 0;
        }
        .warning-box {
            background: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 1rem;
            margin: 1.5rem 0;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .responsive-img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        figcaption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.5rem;
            font-style: italic;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: white;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #e0e0e0;
        }
        th {
            background: #3f51b5;
            color: white;
            font-weight: 600;
        }
        tr:hover {
            background: #f5f5f5;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #3f51b5;
            color: white;
            padding: 12px 24px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            min-width: 44px;
            min-height: 44px;
        }
        .btn:hover {
            background: #283593;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(63,81,181,0.2);
        }
        .btn-secondary {
            background: #757575;
        }
        .btn-secondary:hover {
            background: #424242;
        }
        .btn-success {
            background: #4caf50;
        }
        .btn-success:hover {
            background: #388e3c;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3f51b5;
            box-shadow: 0 0 0 3px rgba(63,81,181,0.1);
        }
        .rating {
            display: flex;
            align-items: center;
            gap: 10px;
            margin: 1rem 0;
        }
        .stars {
            color: #ffd700;
            font-size: 1.2rem;
        }
        .review-card {
            border: 1px solid #e0e0e0;
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 1rem;
        }
        .review-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        .social-share {
            display: flex;
            gap: 10px;
            margin: 2rem 0;
        }
        .social-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: transform 0.3s;
        }
        .social-icon:hover {
            transform: scale(1.1);
        }
        .facebook { background: #3b5998; }
        .twitter { background: #1da1f2; }
        .whatsapp { background: #25d366; }
        .telegram { background: #0088cc; }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: #3f51b5;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 999;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: #283593;
            transform: translateY(-3px);
        }
        footer {
            background: #263238;
            color: white;
            padding: 3rem 2rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: white;
            border-bottom: 2px solid #3f51b5;
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 1rem;
        }
        .friend-link {
            background: rgba(255,255,255,0.1);
            padding: 8px 12px;
            border-radius: 4px;
            text-decoration: none;
            color: white;
            transition: background 0.3s;
        }
        .friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.7);
        }
        .author-box {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: #f5f5f5;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .author-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
                padding: 1rem;
            }
            aside {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a237e;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
            }
            nav ul.active {
                display: flex;
            }
            .search-form {
                width: 100%;
                margin-top: 1rem;
                order: 3;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .social-share {
                justify-content: center;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }