:root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #e53e3e;
            --light-color: #f7fafc;
            --dark-color: #2d3748;
            --text-color: #2d3748;
            --text-light: #718096;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --container-width: 1200px;
            --mobile-breakpoint: 768px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #f8f9fa;
            font-size: 16px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: #fbbf24;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 4px;
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #fbbf24;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-color);
        }
        .breadcrumb i {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .container {
            max-width: var(--container-width);
            margin: 30px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background-color: white;
            border-radius: 8px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary-color);
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 20px;
            line-height: 1.8;
            text-align: justify;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 4px solid #fbbf24;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 4px 4px 0;
        }
        .highlight p {
            margin-bottom: 10px;
        }
        .highlight p:last-child {
            margin-bottom: 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .image-caption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        aside {
            position: sticky;
            top: 100px;
            height: fit-content;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 8px;
            padding: 25px;
            margin-bottom: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            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(--accent-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #c53030;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            direction: rtl;
            justify-content: center;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #fbbf24;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--secondary-color);
        }
        .form-control {
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
            font-family: inherit;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: #2d3748;
        }
        .web-links {
            max-width: var(--container-width);
            margin: 40px auto;
            padding: 0 20px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .web-link {
            background-color: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
            line-height: 1.5;
        }
        .web-link a:hover {
            color: var(--accent-color);
        }
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        .footer-column h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 20px;
            border-bottom: 2px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 10px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding: 30px 0 0;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-container {
                height: 70px;
            }
            nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary-color);
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
            }
            nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            article {
                padding: 25px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .web-links-container {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 480px) {
            .header-container, .breadcrumb-container, .container, .web-links, .footer-container {
                padding: 0 15px;
            }
            article {
                padding: 20px;
            }
        }
        .bold {
            font-weight: 700;
            color: var(--primary-color);
        }
        .text-center {
            text-align: center;
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mt-30 {
            margin-top: 30px;
        }