:root {
            --primary: #FF6B00;
            --secondary: #1A73E8;
            --dark: #202124;
            --light: #F8F9FA;
            --gray: #5F6368;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: var(--light);
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary);
        }
        nav {
            display: flex;
            gap: 2rem;
        }
        nav a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius);
            transition: all 0.3s ease;
            min-height: 44px;
            min-width: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        nav a:hover {
            background-color: var(--primary);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        article {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        aside {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.1rem;
            color: var(--gray);
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--gray);
            background: #f0f7ff;
            padding: 1rem;
            border-radius: var(--radius);
            border-left: 4px solid var(--secondary);
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 12px 24px;
            border-radius: var(--radius);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
        }
        .btn:hover {
            background: #e55a00;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255,107,0,0.3);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: #0d62d9;
        }
        form {
            margin: 1.5rem 0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            min-height: 44px;
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .card {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--primary);
        }
        .info-box {
            background: #f0f7ff;
            border-left: 4px solid var(--secondary);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: var(--radius);
        }
        .update-box {
            background: #fff8e6;
            border-left: 4px solid #ffc107;
            padding: 1rem;
            margin: 1rem 0;
            border-radius: var(--radius);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 1rem 0;
            display: block;
        }
        .img-container {
            text-align: center;
            margin: 2rem 0;
        }
        .img-caption {
            font-size: 0.9rem;
            color: var(--gray);
            margin-top: 0.5rem;
            font-style: italic;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        th, td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background: #f5f5f5;
            font-weight: 600;
        }
        tr:hover {
            background: #f9f9f9;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: #8ab4f8;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .text-primary { color: var(--primary); }
        .text-secondary { color: var(--secondary); }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .d-flex { display: flex; }
        .flex-wrap { flex-wrap: wrap; }
        .gap-1 { gap: 1rem; }
        .gap-2 { gap: 2rem; }
        .justify-center { justify-content: center; }
        .align-center { align-items: center; }
        .search-box {
            position: relative;
            margin: 1rem 0;
        }
        .search-box input {
            padding-right: 50px;
        }
        .search-btn {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--gray);
            cursor: pointer;
            min-height: 44px;
            min-width: 44px;
        }
        .social-share {
            display: flex;
            gap: 1rem;
            margin: 2rem 0;
        }
        .social-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: #f0f0f0;
            border-radius: 50%;
            color: var(--dark);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .social-share a:hover {
            transform: translateY(-3px);
        }
        .facebook:hover { background: #1877f2; color: white; }
        .twitter:hover { background: #1da1f2; color: white; }
        .whatsapp:hover { background: #25d366; color: white; }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: #e55a00;
            transform: translateY(-5px);
        }
        @media (max-width: 768px) {
            html { font-size: 14px; }
            .header-container {
                flex-direction: column;
                gap: 1rem;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.5rem;
            }
            nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1rem;
                right: 20px;
            }
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.2rem; }
            .social-share {
                justify-content: center;
            }
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 44px;
                height: 44px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        .rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
        }
        .rating input {
            display: none;
        }
        .rating label {
            color: #ddd;
            cursor: pointer;
            font-size: 1.5rem;
            padding: 0 2px;
            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: #ffc107;
        }
        img[loading="lazy"] {
            opacity: 0;
            transition: opacity 0.3s;
        }
        img[loading="lazy"].loaded {
            opacity: 1;
        }