:root {
            --primary: #2a4365;
            --secondary: #d69e2e;
            --accent: #c53030;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: white;
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 15px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: bold;
        }
        .search-form button:hover {
            background: #b78a1f;
        }
        nav {
            background-color: rgba(255, 255, 255, 0.05);
        }
        .nav-desktop {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .nav-desktop li {
            position: relative;
        }
        .nav-desktop a {
            display: block;
            padding: 15px 20px;
            font-weight: 600;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--secondary);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary);
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            display: block;
            padding: 15px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light);
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            grid-column: 1 / 2;
        }
        aside {
            grid-column: 2 / 3;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--gray);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 2rem;
        }
        emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight {
            background-color: #fffacd;
            padding: 2px 5px;
            border-radius: 3px;
        }
        .note-box {
            background-color: #e6f7ff;
            border-left: 4px solid #1890ff;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 4px 4px 0;
        }
        .warning-box {
            background-color: #fff2e8;
            border-left: 4px solid #fa8c16;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 4px 4px 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 25px auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .figure-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -15px;
            margin-bottom: 25px;
        }
        ul, ol {
            margin: 1rem 0 1rem 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: var(--primary);
            color: white;
        }
        tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        tr:hover {
            background-color: #f1f1f1;
        }
        .btn {
            display: inline-block;
            background-color: var(--secondary);
            color: white;
            padding: 12px 24px;
            border-radius: 4px;
            font-weight: bold;
            cursor: pointer;
            border: none;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: #b78a1f;
            transform: translateY(-2px);
        }
        .interactive-section {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .rating-widget {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 15px;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-family: inherit;
            resize: vertical;
            margin-bottom: 15px;
        }
        aside {
            background-color: var(--light);
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            align-self: start;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-top: 0;
            color: var(--primary);
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 8px;
        }
        .event-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .event-list li {
            padding: 10px 0;
            border-bottom: 1px dashed #ccc;
        }
        .event-list li:last-child {
            border-bottom: none;
        }
        .event-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .event-list a:hover {
            color: var(--accent);
        }
        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: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #cbd5e0;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 6px;
            margin: 10px 0;
            border-left: 4px solid var(--secondary);
        }
        friend-link a {
            color: var(--secondary);
            font-weight: bold;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                grid-column: 1;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                flex: 1 0 100%;
                margin-top: 15px;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
        }