:root {
            --primary: #4361ee;
            --secondary: #3a0ca3;
            --accent: #f72585;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            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: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }
        .logo span {
            color: #ffd166;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 5px;
            border-radius: 6px;
            transition: var(--transition);
            position: relative;
        }
        nav a:hover, nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffd166;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #ffd166;
            transition: var(--transition);
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f1f3ff;
            font-size: 0.95rem;
            color: var(--gray);
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: var(--secondary);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            color: var(--gray);
            font-size: 0.95rem;
            border-bottom: 1px solid #eee;
            padding-bottom: 15px;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-image {
            width: 100%;
            border-radius: var(--border-radius);
            overflow: hidden;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        .article-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .article-image img:hover {
            transform: scale(1.03);
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 35px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: 25px 0 10px;
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9db;
            border-left: 5px solid #ffd43b;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .tip-box {
            background-color: #e7f5ff;
            border: 1px solid #a5d8ff;
            border-radius: var(--border-radius);
            padding: 20px;
            margin: 25px 0;
        }
        .tip-box h4 {
            color: var(--secondary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #f0f5ff, #e6edff);
            border-radius: var(--border-radius);
            padding: 25px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .stat-card h3 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin: 10px 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--secondary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
            font-size: 1.4rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 14px;
            border: 2px solid #ddd;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: var(--secondary);
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 20px 0;
            font-size: 1.8rem;
            color: #ffd43b;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-widget select,
        .rating-widget textarea,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .rating-widget select:focus,
        .rating-widget textarea:focus,
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
        }
        .rating-widget button,
        .comment-form button {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover,
        .comment-form button:hover {
            background-color: #e11571;
        }
        .quick-links ul {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 12px;
        }
        .quick-links a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .quick-links a:hover {
            background-color: #f0f5ff;
            color: var(--primary);
            padding-left: 20px;
        }
        .web-links-section {
            margin: 50px 0;
            padding: 30px;
            background: linear-gradient(to right, #f8f9ff, #f0f4ff);
            border-radius: var(--border-radius);
        }
        .web-links-section h2 {
            text-align: center;
            color: var(--secondary);
            margin-bottom: 30px;
            font-size: 2rem;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.12);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            display: block;
            line-height: 1.5;
        }
        .web-link a:hover {
            text-decoration: underline;
            color: var(--secondary);
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: white;
        }
        .footer-logo span {
            color: #ffd166;
        }
        .footer-about p {
            color: #adb5bd;
            margin-bottom: 20px;
        }
        .social-links {
            display: flex;
            gap: 15px;
        }
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .social-links a:hover {
            background-color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-links h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--primary);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #adb5bd;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .article-content h1 {
                font-size: 2.3rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            nav ul {
                position: fixed;
                top: 80px;
                left: -100%;
                flex-direction: column;
                background: linear-gradient(135deg, var(--primary), var(--secondary));
                width: 100%;
                padding: 30px;
                transition: 0.5s;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                z-index: 999;
                gap: 0;
            }
            nav ul.active {
                left: 0;
            }
            nav ul li {
                margin-bottom: 20px;
            }
            nav a {
                display: block;
                padding: 15px;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 15px 0;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            .article-content {
                padding: 20px;
            }
            .article-content h1 {
                font-size: 1.8rem;
            }
            .article-content h2 {
                font-size: 1.5rem;
            }
            .sidebar-widget {
                padding: 20px;
            }
            .web-links-container {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            header, .sidebar, .web-links-section, footer, .breadcrumb, .search-box, .rating-widget, .comment-form {
                display: none;
            }
            main {
                display: block;
                padding: 0;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }