* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #2c7be5;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a5bb8;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #1a202c;
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: #4ade80;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #22c55e;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 2rem;
        }
        nav ul li a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        nav ul li a:hover {
            color: #4ade80;
        }
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #4ade80;
            transition: width 0.3s ease;
        }
        nav ul li a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #1a202c;
                padding: 1rem;
                z-index: 1000;
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 0.5rem 0;
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e2e8f0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #2c7be5;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .sidebar {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.5rem;
            color: #1a202c;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #4ade80;
        }
        h3 {
            font-size: 1.5rem;
            color: #4a5568;
            margin: 1.5rem 0 0.5rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #718096;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: #1a202c;
            font-weight: 700;
        }
        em {
            color: #e53e3e;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        form {
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #cbd5e0;
            border-radius: 4px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4ade80;
        }
        button {
            background-color: #4ade80;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: #22c55e;
        }
        .comment, .rating {
            background-color: #f7fafc;
            padding: 1rem;
            border-radius: 4px;
            margin-bottom: 1rem;
            border-left: 4px solid #4ade80;
        }
        .comment-author {
            font-weight: bold;
            color: #2d3748;
        }
        .comment-date {
            font-size: 0.9rem;
            color: #718096;
        }
        .stars {
            color: #fbbf24;
            margin-bottom: 0.5rem;
        }
        footer {
            background-color: #1a202c;
            color: white;
            padding: 2rem 0;
            margin-top: 2rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            color: #a0aec0;
        }
        friend-link a {
            color: #a0aec0;
        }
        friend-link a:hover {
            color: #4ade80;
        }
        .copyright {
            text-align: center;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #cbd5e0;
            width: 100%;
        }
        .text-center {
            text-align: center;
        }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .emoji {
            font-size: 1.2rem;
            margin-right: 0.5rem;
        }
        .last-updated {
            font-style: italic;
            color: #718096;
            margin-bottom: 2rem;
        }