:root {
            --primary: #1a237e; 
            --secondary: #ff6f00; 
            --accent: #4caf50; 
            --light: #f5f5f5;
            --dark: #121212;
            --text: #333;
            --text-light: #777;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 2px;
            font-family: 'Impact', 'Arial Black', sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo a:hover {
            color: white;
            text-decoration: none;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
        }
        .nav-links a:hover {
            background-color: var(--secondary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
            background: none;
            border: none;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background-color: #e3f2fd;
            padding: 0.8rem 20px;
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        main {
            padding: 2rem 0;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        article {
            padding: 0 20px;
        }
        h1 {
            font-size: 3.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            text-align: center;
            border-bottom: 4px solid var(--secondary);
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2.5rem;
            color: var(--primary);
            margin: 2.5rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 6px solid var(--accent);
        }
        h3 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            background-color: #e8f5e9;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--accent);
            margin-bottom: 2rem;
        }
        strong {
            color: var(--secondary);
            font-weight: 800;
        }
        em {
            color: var(--text-light);
            font-style: italic;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }
        .blockquote {
            border-left: 5px solid var(--secondary);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--text-light);
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .feature-img {
            width: 80%;
            margin: 2rem auto;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
            border: 5px solid var(--primary);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .inline-links {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .inline-links a {
            background-color: var(--light);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            border: 1px solid #ccc;
        }
        .inline-links a:hover {
            background-color: var(--secondary);
            color: white;
            border-color: var(--secondary);
        }
        .form-section {
            background-color: #f0f8ff;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            border: 2px dashed var(--primary);
        }
        .form-section h3 {
            color: var(--primary);
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--secondary);
            outline: none;
            box-shadow: 0 0 8px rgba(255, 111, 0, 0.3);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
            font-weight: bold;
        }
        button:hover {
            background-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: #ffcc00;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--secondary);
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: var(--secondary);
        }
        friend-link {
            display: block;
            background-color: #2c3e50;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            text-align: center;
        }
        friend-link a {
            color: #1abc9c;
            font-weight: bold;
            font-size: 1.2rem;
        }
        friend-link a:hover {
            color: #e74c3c;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.2rem; }
            h3 { font-size: 1.8rem; }
            .nav-links {
                gap: 1rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--primary);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem 0;
                box-shadow: var(--shadow);
                z-index: 999;
            }
            #nav-toggle:checked ~ .nav-links {
                display: flex;
            }
            .nav-links li {
                text-align: center;
                margin: 0.5rem 0;
            }
            .feature-img {
                width: 95%;
            }
            .form-section {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .my-logo { font-size: 1.8rem; }
            .lead { font-size: 1.1rem; }
            p { font-size: 1rem; }
        }