* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            direction: ltr;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1, h2, h3, h4 {
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid #3498db;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2980b9;
            margin-top: 2rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #16a085;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.3s;
        }
        .nav-desktop a:hover {
            color: #f1c40f;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #f1c40f;
            transition: width 0.3s;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #2c3e50;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: padding-left 0.3s;
        }
        .nav-mobile a:hover {
            padding-left: 10px;
            color: #f1c40f;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #ecf0f1;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #7f8c8d;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            background-color: #f1c40f;
            padding: 2rem 0;
            margin-bottom: 2rem;
            border-radius: 8px;
            text-align: center;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 1rem;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        .search-button {
            background-color: #e74c3c;
            color: white;
            border: none;
            border-radius: 50px;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-button:hover {
            background-color: #c0392b;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .hero-image {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .hero-image img {
            width: 100%;
            transition: transform 0.5s;
        }
        .hero-image:hover img {
            transform: scale(1.03);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #7f8c8d;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .highlight-box {
            background-color: #e8f4fc;
            border-left: 5px solid #3498db;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box h3 {
            color: #2980b9;
            margin-top: 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }
        .stat-desc {
            font-size: 1rem;
        }
        .sidebar {
            background-color: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar-list {
            list-style: none;
        }
        .sidebar-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid #eee;
        }
        .sidebar-list a {
            color: #2c3e50;
            text-decoration: none;
            transition: color 0.3s;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-list a:hover {
            color: #3498db;
        }
        .user-interaction {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            margin-top: 2rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .interaction-tabs {
            display: flex;
            border-bottom: 2px solid #eee;
            margin-bottom: 1.5rem;
        }
        .tab-button {
            padding: 0.8rem 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            font-weight: bold;
            color: #7f8c8d;
            position: relative;
            transition: color 0.3s;
        }
        .tab-button.active {
            color: #3498db;
        }
        .tab-button.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #3498db;
        }
        .tab-content {
            display: none;
        }
        .tab-content.active {
            display: block;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin-bottom: 1.5rem;
        }
        .rating-stars i {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f1c40f;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            border-color: #3498db;
            outline: none;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background-color: #2ecc71;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .submit-button:hover {
            background-color: #27ae60;
        }
        .footer-links {
            background-color: #2c3e50;
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link {
            background-color: #34495e;
            padding: 1.5rem;
            margin-bottom: 1rem;
            border-radius: 8px;
            transition: transform 0.3s, background-color 0.3s;
        }
        .web-link:hover {
            transform: translateX(10px);
            background-color: #3d566e;
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            display: block;
        }
        .web-link a:hover {
            color: #f1c40f;
        }
        footer {
            background-color: #1a252f;
            color: #bdc3c7;
            padding: 2rem 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
        }
        .copyright {
            font-size: 0.9rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #2c3e50;
            width: 100%;
        }
        .text-center { text-align: center; }
        .text-bold { font-weight: bold; }
        .text-highlight { background-color: #fffacd; padding: 0 5px; }
        .emoji { font-size: 1.2rem; }
        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.3rem; }
            .search-box {
                flex-direction: column;
            }
            .search-button {
                justify-content: center;
            }
        }