:root {
            --primary-color: #2c3e50;
            --secondary-color: #e74c3c;
            --accent-color: #f39c12;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            margin: 0 auto;
        }
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 8px 8px;
            box-shadow: var(--shadow);
        }
        .logo-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 700;
            background: linear-gradient(90deg, var(--accent-color), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-color);
        }
        .domain {
            font-size: 0.9rem;
            color: #bbb;
            margin-top: 5px;
        }
        nav {
            margin-top: 1rem;
            width: 100%;
        }
        .nav-desktop {
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
            list-style: none;
            justify-content: center;
        }
        .nav-desktop li a {
            color: white;
            background-color: rgba(255,255,255,0.1);
            padding: 12px 18px;
            border-radius: 6px;
            display: block;
            font-weight: 500;
            min-height: 44px;
            min-width: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .nav-desktop li a:hover {
            background-color: var(--secondary-color);
            text-decoration: none;
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 10px;
            min-height: 44px;
            min-width: 44px;
            align-items: center;
            justify-content: center;
        }
        .nav-mobile {
            display: none;
            list-style: none;
            flex-direction: column;
            background-color: var(--primary-color);
            border-radius: 8px;
            margin-top: 1rem;
            padding: 1rem;
            gap: 8px;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile li a {
            color: white;
            padding: 15px;
            border-radius: 6px;
            display: block;
            background-color: rgba(255,255,255,0.05);
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin-bottom: 3rem;
        }
        article {
            background-color: #fff;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        aside {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            height: fit-content;
            box-shadow: var(--shadow);
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-top: 1.5em;
            margin-bottom: 0.5em;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 10px;
            margin-top: 0;
        }
        h2 {
            font-size: 2rem;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--secondary-color);
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--dark-text);
            font-weight: 500;
            padding: 1rem;
            background-color: var(--light-bg);
            border-left: 4px solid var(--accent-color);
            border-radius: 4px;
            margin-bottom: 2rem;
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .info-box {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        .info-box h3 {
            margin-top: 0;
            color: var(--primary-color);
            border-bottom: 1px dashed var(--border-color);
            padding-bottom: 10px;
        }
        .info-row {
            display: flex;
            padding: 8px 0;
            border-bottom: 1px dotted #ddd;
        }
        .info-label {
            font-weight: 600;
            min-width: 120px;
            color: var(--dark-text);
        }
        .img-container {
            margin: 2rem 0;
            text-align: center;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .img-container img {
            width: 100%;
            height: auto;
            transition: var(--transition);
        }
        .img-container:hover img {
            transform: scale(1.02);
        }
        .img-caption {
            font-style: italic;
            padding: 10px;
            background-color: var(--light-bg);
            color: #666;
            font-size: 0.9rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
            border-radius: 8px;
            overflow: hidden;
        }
        th {
            background-color: var(--primary-color);
            color: white;
            padding: 15px;
            text-align: left;
        }
        td {
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-color);
        }
        tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        tr:hover {
            background-color: #f1f1f1;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--secondary-color);
            color: white;
            padding: 12px 24px;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            min-height: 44px;
            min-width: 44px;
        }
        .btn:hover {
            background-color: #c0392b;
            text-decoration: none;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .btn-secondary {
            background-color: var(--primary-color);
        }
        .btn-secondary:hover {
            background-color: #1a252f;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-text);
        }
        input, select, textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
        }
        .rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            flex-direction: row-reverse;
            justify-content: flex-end;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
            padding: 5px;
            min-height: 44px;
            min-width: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: var(--accent-color);
        }
        .social-share {
            display: flex;
            gap: 10px;
            margin: 2rem 0;
            flex-wrap: wrap;
        }
        .social-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .facebook { background-color: #3b5998; }
        .twitter { background-color: #1da1f2; }
        .whatsapp { background-color: #25d366; }
        .social-btn:hover {
            transform: translateY(-5px);
            text-decoration: none;
        }
        #backToTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            z-index: 1000;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        #backToTop:hover {
            background-color: var(--secondary-color);
            transform: translateY(-5px);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 1rem;
            margin-top: 3rem;
            border-radius: 8px 8px 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 10px;
            margin-top: 0;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 1rem 0;
        }
        .friend-link {
            background-color: rgba(255,255,255,0.1);
            padding: 8px 15px;
            border-radius: 4px;
            color: #ddd;
        }
        .friend-link:hover {
            background-color: rgba(255,255,255,0.2);
            color: white;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #bbb;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            article, aside {
                padding: 1.5rem;
            }
            .logo-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 10px;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            .btn {
                padding: 12px 18px;
                font-size: 0.9rem;
            }
        }