* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #00a2ff;
            --secondary: #1a1a2e;
            --accent: #ff7b00;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --border: #dee2e6;
            --success: #28a745;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--dark);
            background-color: var(--light);
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo span {
            color: var(--accent);
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 12px;
            border-radius: var(--radius);
            transition: all 0.3s ease;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: var(--primary);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--dark);
            cursor: pointer;
            padding: 10px;
        }
        .search-container {
            background-color: var(--secondary);
            padding: 15px 0;
        }
        .search-box {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 12px 20px;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background-color: #e06a00;
        }
        main {
            flex: 1;
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background-color: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        aside {
            background-color: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-section {
            margin-bottom: 30px;
        }
        .sidebar-section h3 {
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
            margin-bottom: 15px;
            color: var(--secondary);
        }
        .info-box {
            background-color: #f0f8ff;
            border-left: 4px solid var(--primary);
            padding: 15px;
            margin-bottom: 20px;
        }
        h1 {
            color: var(--secondary);
            font-size: 2.5rem;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--accent);
        }
        h2 {
            color: var(--secondary);
            font-size: 1.8rem;
            margin: 35px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        h3 {
            color: var(--dark);
            font-size: 1.4rem;
            margin: 25px 0 15px;
        }
        h4 {
            color: var(--gray);
            font-size: 1.1rem;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 16px;
            text-align: justify;
        }
        a {
            color: var(--primary);
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 8px;
        }
        .content-img {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 20px 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .highlight-box {
            background-color: #fff9e6;
            border: 1px solid #ffd166;
            border-radius: var(--radius);
            padding: 20px;
            margin: 25px 0;
        }
        .update-badge {
            display: inline-block;
            background-color: var(--success);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-left: 10px;
            vertical-align: middle;
        }
        .author-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background-color: #e9ecef;
            padding: 10px 15px;
            border-radius: var(--radius);
            margin: 20px 0;
            font-size: 0.9rem;
        }
        .author-badge img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
        }
        .btn {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 12px 24px;
            border-radius: var(--radius);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            min-width: 44px;
            min-height: 44px;
        }
        .btn:hover {
            background-color: #0088cc;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 162, 255, 0.2);
        }
        .btn-accent {
            background-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: #e06a00;
        }
        .btn-small {
            padding: 8px 16px;
            font-size: 0.9rem;
        }
        .social-share {
            display: flex;
            gap: 10px;
            margin: 30px 0;
            flex-wrap: wrap;
        }
        .social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            transition: transform 0.3s;
        }
        .social-btn:hover {
            transform: scale(1.1);
            text-decoration: none;
        }
        .facebook { background-color: #3b5998; }
        .twitter { background-color: #1da1f2; }
        .reddit { background-color: #ff4500; }
        .whatsapp { background-color: #25d366; }
        #backToTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            border: none;
            cursor: pointer;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            display: none;
            z-index: 99;
            transition: opacity 0.3s;
        }
        #backToTop:hover {
            background-color: #0088cc;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
        }
        .star {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        footer {
            background-color: var(--secondary);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        .footer-section h3 {
            color: white;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #b0b7c3;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 10px 0;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #444;
            color: #b0b7c3;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                height: 70px;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                box-shadow: var(--shadow);
                display: none;
                z-index: 999;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                width: 100%;
                text-align: center;
            }
            .nav-links a {
                display: block;
                padding: 15px;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            #backToTop {
                bottom: 20px;
                right: 20px;
                width: 45px;
                height: 45px;
            }
        }
        @media (max-width: 480px) {
            .header-container, 
            .search-box,
            main,
            .footer-container {
                padding: 0 15px;
            }
            article {
                padding: 20px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .btn {
                padding: 10px 20px;
            }
        }
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mt-30 { margin-top: 30px; }
        .d-flex { display: flex; }
        .flex-wrap { flex-wrap: wrap; }
        .align-center { align-items: center; }
        .justify-between { justify-content: space-between; }
        .gap-15 { gap: 15px; }
        .tag {
            display: inline-block;
            background-color: #e9ecef;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.85rem;
            color: var(--gray);
            margin: 0 5px 5px 0;
        }