:root {
            --primary-green: #4CAF50;
            --dark-green: #2E7D32;
            --zombie-green: #8BC34A;
            --sun-yellow: #FFC107;
            --soil-brown: #795548;
            --highlight-orange: #FF9800;
            --text-dark: #333;
            --text-light: #f8f8f8;
            --bg-light: #f5f5f5;
            --shadow: rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--dark-green);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--highlight-orange);
            text-decoration: underline;
        }
        header {
            background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
            color: var(--text-light);
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--sun-yellow);
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
        }
        .my-logo span {
            color: var(--text-light);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .breadcrumb {
            background-color: #e8f5e9;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #c8e6c9;
        }
        .breadcrumb a {
            color: var(--dark-green);
        }
        .breadcrumb span {
            color: #666;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        main {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 15px var(--shadow);
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 15px var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            color: var(--dark-green);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            border-bottom: 3px solid var(--sun-yellow);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--primary-green);
            margin: 2.5rem 0 1.2rem;
            padding-left: 0.5rem;
            border-left: 5px solid var(--highlight-orange);
        }
        h3 {
            color: var(--soil-brown);
            margin: 1.8rem 0 1rem;
        }
        h4 {
            color: #666;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark-green);
            background-color: #f1f8e9;
            padding: 1rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--sun-yellow);
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            border: 5px solid var(--zombie-green);
            margin: 1.5rem auto;
            display: block;
            box-shadow: 0 8px 16px var(--shadow);
        }
        .interactive-box {
            background: linear-gradient(to right, #e1f5fe, #f3e5f5);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin: 2rem 0;
            border: 2px dashed var(--primary-green);
        }
        .interactive-box h3 {
            margin-top: 0;
            color: #d81b60;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
        }
        button {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--border-radius);
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s, transform 0.2s;
        }
        button:hover {
            background-color: var(--dark-green);
            transform: translateY(-2px);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #ddd;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .rating i:hover,
        .rating i.active {
            color: var(--sun-yellow);
        }
        .link-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin: 2rem 0;
            padding: 1.5rem;
            background-color: #f9f9f9;
            border-radius: var(--border-radius);
        }
        .link-cloud a {
            background-color: #e8f5e9;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            border: 1px solid #c8e6c9;
        }
        .link-cloud a:hover {
            background-color: var(--primary-green);
            color: white;
            text-decoration: none;
        }
        footer {
            background-color: var(--dark-green);
            color: var(--text-light);
            padding: 3rem 2rem 1.5rem;
            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-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--sun-yellow);
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: #c8e6c9;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #bdbdbd;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--dark-green);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 10px 15px var(--shadow);
            }
            nav ul.active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            .container {
                padding: 0 1rem;
            }
            main {
                padding: 1.5rem;
            }
        }
        .last-updated {
            font-style: italic;
            color: #777;
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }