:root {
            --primary-color: #2c3e50;
            --secondary-color: #e74c3c;
            --accent-color: #3498db;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
            --text-color: #333;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--box-shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .logo:hover {
            color: var(--accent-color);
        }
        .breadcrumb {
            background-color: #f1f1f1;
            padding: 12px 0;
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: #777;
        }
        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-links a:hover {
            background-color: var(--accent-color);
            transform: translateY(-2px);
        }
        .nav-links a.active {
            background-color: var(--secondary-color);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .search-container {
            margin: 30px 0;
            padding: 25px;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--accent-color);
            outline: none;
        }
        .search-form button {
            padding: 0 30px;
            background-color: var(--secondary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #c0392b;
            transform: scale(1.05);
        }
        main {
            padding: 30px 0;
        }
        article {
            background-color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            margin-bottom: 40px;
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            color: var(--dark-color);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: #555;
            font-size: 1.2rem;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 25px;
            border-left: 5px solid var(--secondary-color);
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
            transition: var(--transition);
        }
        img:hover {
            transform: scale(1.01);
        }
        .image-container {
            margin: 40px auto;
            text-align: center;
        }
        .image-caption {
            margin-top: 10px;
            font-style: italic;
            color: #666;
            font-size: 0.9rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .stat-card {
            background-color: var(--light-color);
            padding: 25px;
            border-radius: var(--border-radius);
            text-align: center;
            border-top: 5px solid var(--accent-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--secondary-color);
            margin-bottom: 10px;
        }
        .stat-desc {
            font-size: 1.1rem;
            color: var(--dark-color);
        }
        .interview {
            background-color: #f8f9fa;
            padding: 30px;
            border-radius: var(--border-radius);
            margin: 40px 0;
            border-left: 5px solid var(--accent-color);
        }
        .interview-quote {
            font-size: 1.3rem;
            font-style: italic;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .interview-author {
            text-align: right;
            font-weight: 600;
            color: #555;
        }
        .user-interaction {
            background-color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            margin: 50px 0;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .interaction-form {
            background-color: var(--light-color);
            padding: 25px;
            border-radius: var(--border-radius);
        }
        .interaction-form h3 {
            color: var(--secondary-color);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent-color);
            outline: none;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .rating-stars i {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #ffc107;
        }
        .submit-btn {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            width: 100%;
        }
        .submit-btn:hover {
            background-color: #2980b9;
            transform: translateY(-3px);
        }
        .web-links-section {
            margin: 50px 0;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: white;
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.12);
        }
        .web-link a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background-color: var(--primary-color);
                width: 300px;
                height: calc(100vh - 70px);
                padding: 40px 20px;
                transition: var(--transition);
                box-shadow: -5px 0 15px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                right: 0;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(8px, 8px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -7px);
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }
            article {
                padding: 25px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .header-content {
                flex-direction: column;
                gap: 15px;
            }
            .logo {
                font-size: 1.8rem;
            }
            .user-interaction {
                padding: 25px;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            article {
                padding: 20px;
            }
            .search-container {
                padding: 20px;
            }
            .search-form {
                flex-direction: column;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            header, nav, .search-container, .user-interaction, .web-links-section, footer {
                display: none;
            }
            body {
                background-color: white;
                color: black;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }