:root {
            --primary-color: #1a237e;
            --secondary-color: #ff6f00;
            --accent-color: #d32f2f;
            --text-dark: #333;
            --text-light: #f5f5f5;
            --bg-light: #f8f9fa;
            --bg-dark: #121212;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
            --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-dark);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            background: linear-gradient(90deg, var(--primary-color), transparent);
            color: white;
            padding: 10px 15px;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--accent-color);
            padding-left: 10px;
            border-left: 4px solid var(--secondary-color);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--primary-color);
        }
        .highlight {
            background-color: #fff3e0;
            padding: 15px;
            border-left: 5px solid var(--secondary-color);
            margin: 20px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        header {
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            text-decoration: none;
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .logo span {
            background: linear-gradient(90deg, #fff, var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            background-color: var(--secondary-color);
            color: var(--primary-color);
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--bg-dark);
            z-index: 999;
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .nav-mobile.active {
            transform: translateY(0);
            opacity: 1;
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
        }
        .nav-mobile li {
            margin-bottom: 1rem;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            font-size: 1.2rem;
            display: block;
            padding: 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background-color: var(--secondary-color);
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e3f2fd;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: var(--primary-color);
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary-color), #283593);
            padding: 30px 0;
            margin-bottom: 40px;
            border-radius: var(--border-radius);
            text-align: center;
            color: white;
        }
        .search-section h2 {
            background: none;
            color: white;
            padding: 0;
        }
        .search-form {
            max-width: 700px;
            margin: 20px auto 0;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .search-input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #ff8f00;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px 0 40px;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            background-color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background-color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }
        .widget-list {
            list-style: none;
        }
        .widget-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #ddd;
        }
        .widget-list a {
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .widget-list a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .widget-list i {
            color: var(--primary-color);
        }
        .article-image {
            margin: 30px 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-image figcaption {
            padding: 10px;
            background-color: #f5f5f5;
            font-style: italic;
            text-align: center;
            color: #666;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 20px;
            border-radius: var(--border-radius);
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .stat-card h4 {
            color: var(--accent-color);
            margin-bottom: 10px;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
        }
        .comparison-table th, .comparison-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        .comparison-table th {
            background-color: var(--primary-color);
            color: white;
        }
        .comparison-table tr:hover {
            background-color: #f9f9f9;
        }
        .tip-box {
            background-color: #e8f5e9;
            border: 2px solid #4caf50;
            border-radius: var(--border-radius);
            padding: 20px;
            margin: 25px 0;
            position: relative;
        }
        .tip-box::before {
            content: "💡";
            position: absolute;
            top: -15px;
            left: -15px;
            background: white;
            border-radius: 50%;
            padding: 8px;
            font-size: 1.5rem;
            box-shadow: var(--shadow);
        }
        .interaction-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 3px solid #eee;
        }
        .rating-widget {
            text-align: center;
            margin-bottom: 40px;
        }
        .stars {
            font-size: 2.5rem;
            color: #ddd;
            margin: 15px 0;
            cursor: pointer;
        }
        .stars .star {
            transition: var(--transition);
            margin: 0 5px;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffc107;
            transform: scale(1.2);
        }
        .comment-form, .rating-form {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--primary-color);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.2);
        }
        .submit-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: var(--accent-color);
        }
        .footer-links {
            background-color: #2c387e;
            padding: 40px 0;
            margin-top: 50px;
        }
        .web-link {
            display: inline-block;
            margin: 10px 15px;
            padding: 12px 20px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 30px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }
        .footer-links-container {
            text-align: center;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .social-links {
            display: flex;
            gap: 20px;
            margin: 20px 0;
        }
        .social-links a {
            color: white;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .social-links a:hover {
            color: var(--secondary-color);
            transform: translateY(-5px);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 20px;
            width: 100%;
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.3rem; }
            .header-container { flex-wrap: wrap; }
            .nav-desktop { display: none; }
            .nav-toggle { display: block; }
            .search-form { flex-direction: column; border-radius: var(--border-radius); }
            .search-input, .search-button { border-radius: 0; padding: 15px; }
            .content-area, .sidebar { padding: 20px; }
            .stats-grid { grid-template-columns: 1fr; }
        }