* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Arial', 'Nirmala UI', sans-serif;
        }
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
            --text-color: #333;
            --text-light: #7f8c8d;
            --border-color: #ddd;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            color: var(--text-color);
            background-color: #f9f9f9;
            line-height: 1.6;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        .logo a i {
            color: var(--secondary-color);
            margin-right: 10px;
            font-size: 2rem;
        }
        .nav-desktop {
            display: flex;
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
        }
        .nav-desktop li {
            margin-left: 25px;
        }
        .nav-desktop a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 600;
            padding: 5px 10px;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-desktop a:hover {
            background-color: var(--secondary-color);
            color: white;
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .nav-mobile {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            z-index: 2000;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile ul {
            list-style: none;
            text-align: center;
        }
        .nav-mobile li {
            margin: 20px 0;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            font-size: 1.5rem;
            padding: 10px 20px;
            display: block;
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            color: var(--secondary-color);
        }
        .close-menu {
            position: absolute;
            top: 20px;
            right: 20px;
            color: white;
            font-size: 2rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 10px 0;
            margin-bottom: 20px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 5px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin-left: 5px;
            color: var(--text-light);
        }
        .breadcrumb a {
            text-decoration: none;
            color: var(--secondary-color);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 30px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary-color);
        }
        h3 {
            color: var(--dark-color);
            font-size: 1.4rem;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 15px;
            border-left: 4px solid #ffd700;
            margin: 20px 0;
            border-radius: 0 4px 4px 0;
        }
        .tip-box {
            background-color: #e8f4fc;
            padding: 15px;
            border-radius: 8px;
            margin: 20px 0;
            border-left: 4px solid var(--secondary-color);
        }
        .tip-title {
            display: flex;
            align-items: center;
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .tip-title i {
            margin-right: 10px;
            color: var(--secondary-color);
        }
        .answers-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        .answers-table th {
            background-color: var(--primary-color);
            color: white;
            padding: 12px 15px;
            text-align: left;
        }
        .answers-table td {
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-color);
        }
        .answers-table tr:hover {
            background-color: #f5f5f5;
        }
        .article-image {
            width: 100%;
            max-height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        aside {
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            height: fit-content;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--primary-color);
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-color);
        }
        .search-form {
            display: flex;
            margin-bottom: 20px;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #2980b9;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            margin: 15px 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 0 2px;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 15px;
        }
        .rating-input {
            padding: 10px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
        }
        .rating-button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-button:hover {
            background-color: #c0392b;
        }
        .comment {
            background-color: #f9f9f9;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 15px;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary-color);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 20px;
        }
        .comment-input {
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
        }
        .comment-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-button:hover {
            background-color: #1a252f;
        }
        .footer-links {
            background-color: var(--light-color);
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .links-container {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .links-container {
                grid-template-columns: 1fr;
            }
        }
        .web-link {
            background-color: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .web-link a {
            text-decoration: none;
            color: var(--secondary-color);
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 30px 0;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .copyright {
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            article, aside {
                padding: 20px;
            }
            .answers-table {
                display: block;
                overflow-x: auto;
            }
        }
        @media print {
            .nav-desktop, .hamburger, .search-form, .rating-widget, .comment-form, .footer-links {
                display: none !important;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
        }