* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --text-color: #1f2937;
            --light-bg: #f8fafc;
            --dark-bg: #0f172a;
            --border-color: #e2e8f0;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-bg);
            font-size: 18px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .logo:hover {
            color: var(--secondary-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        nav a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 600;
            font-size: 17px;
            padding: 8px 12px;
            border-radius: 4px;
            transition: var(--transition);
        }
        nav a:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 24px;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light-bg);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: #6b7280;
        }
        main {
            padding: 30px 0;
        }
        .article-header {
            margin-bottom: 40px;
            text-align: center;
        }
        .article-header h1 {
            font-size: 42px;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: #6b7280;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 30px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .content-section {
            margin-bottom: 50px;
        }
        h2 {
            font-size: 32px;
            color: var(--primary-color);
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            font-size: 26px;
            color: var(--dark-bg);
            margin: 25px 0 15px;
        }
        h4 {
            font-size: 22px;
            color: var(--secondary-color);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background-color: #fff7ed;
            border-left: 4px solid var(--accent-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .highlight strong {
            color: var(--primary-color);
            display: block;
            margin-bottom: 10px;
            font-size: 20px;
        }
        .group-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .group-card {
            background: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
            border-top: 5px solid var(--primary-color);
        }
        .group-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .group-title {
            font-size: 24px;
            color: var(--primary-color);
            margin-bottom: 15px;
            text-align: center;
        }
        .team-list {
            list-style: none;
        }
        .team-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .team-list li:last-child {
            border-bottom: none;
        }
        .team-flag {
            width: 24px;
            height: 16px;
            object-fit: cover;
            border-radius: 2px;
        }
        .prediction {
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px dashed var(--border-color);
        }
        .interactive-section {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin: 40px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .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 var(--border-color);
            border-radius: 5px;
            font-size: 16px;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
        }
        .rating-star {
            font-size: 24px;
            color: #e2e8f0;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-star.active,
        .rating-star:hover {
            color: var(--accent-color);
        }
        .footer-links {
            background-color: var(--dark-bg);
            padding: 40px 0;
            margin-top: 50px;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        .web-link {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 12px 15px;
            border-radius: 5px;
        }
        .web-link a {
            color: #e2e8f0;
            text-decoration: none;
            transition: var(--transition);
            display: block;
        }
        .web-link a:hover {
            color: white;
            padding-left: 5px;
        }
        footer {
            background-color: #0a0f1f;
            color: #94a3b8;
            padding: 30px 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .social-links {
            display: flex;
            gap: 15px;
        }
        .social-links a {
            color: #94a3b8;
            font-size: 20px;
            transition: var(--transition);
        }
        .social-links a:hover {
            color: white;
        }
        @media (max-width: 992px) {
            .group-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                transform: translateY(-150%);
                transition: var(--transition);
                opacity: 0;
                visibility: hidden;
            }
            nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            nav ul {
                flex-direction: column;
                padding: 20px;
                gap: 0;
            }
            nav li {
                width: 100%;
            }
            nav a {
                display: block;
                padding: 15px;
                border-bottom: 1px solid var(--border-color);
            }
            .article-header h1 {
                font-size: 32px;
            }
            h2 {
                font-size: 28px;
            }
            h3 {
                font-size: 24px;
            }
            .group-container {
                grid-template-columns: 1fr;
            }
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-header h1 {
                font-size: 28px;
            }
            .meta-info {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .interactive-section {
                padding: 20px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }