* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2a4365;
            --secondary: #e53e3e;
            --accent: #38a169;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f0f4f8;
            color: var(--dark);
            line-height: 1.7;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary), #1a365d);
            color: white;
            padding: 1rem 5%;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(to right, #fbd38d, #fc8181);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .logo span {
            color: #68d391;
        }
        .main-nav ul {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: #fbd38d;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--secondary);
            bottom: 0;
            left: 0;
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 5%;
            font-size: 0.9rem;
            border-bottom: 1px solid #cbd5e0;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .content-main {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        h1, h2, h3 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.5rem;
            color: #2d3748;
            position: relative;
            padding-left: 1rem;
        }
        h2::before {
            content: '🗺️';
            position: absolute;
            left: -0.5rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 1.8rem;
            color: #4a5568;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--secondary);
            background-color: #fff5f5;
            padding: 1rem;
            border-left: 4px solid var(--secondary);
            border-radius: 0 8px 8px 0;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fefcbf;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .tip {
            background-color: #c6f6d5;
            border-left: 4px solid var(--accent);
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip::before {
            content: '💡 ';
            font-weight: bold;
        }
        .article-img {
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .article-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: 0.8rem;
            background-color: #f7fafc;
        }
        .interaction-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px solid #e2e8f0;
        }
        .interaction-section h3 {
            margin-top: 0;
            color: var(--primary);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 67, 101, 0.1);
        }
        button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        button:hover {
            background-color: #1a365d;
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            direction: ltr;
            font-size: 1.8rem;
            color: #e2e8f0;
            margin-bottom: 1rem;
        }
        .rating-stars .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #f6ad55;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .widget-list li {
            padding: 0.8rem 0;
            border-bottom: 1px solid #edf2f7;
        }
        .widget-list a:hover {
            color: var(--secondary);
        }
        .widget-list i {
            margin-right: 0.8rem;
            color: var(--accent);
        }
        .footer-links {
            background: #2d3748;
            padding: 3rem 5%;
            margin-top: 4rem;
        }
        .links-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .web-link {
            background: #4a5568;
            padding: 1.2rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: #5a6578;
            transform: translateY(-5px);
        }
        .web-link a {
            color: #cbd5e0;
            font-weight: 500;
        }
        .web-link a:hover {
            color: white;
        }
        .site-footer {
            background: var(--dark);
            color: #a0aec0;
            text-align: center;
            padding: 2rem 5%;
            font-size: 0.9rem;
        }
        .copyright {
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #4a5568;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
            .main-nav ul {
                gap: 1.2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--primary);
                padding: 1rem;
                transform: translateY(-150%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.4s ease;
                box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid #4a5568;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .content-main {
                padding: 1.5rem;
            }
            .header-container, .breadcrumb, .container, .footer-links, .site-footer {
                padding-left: 5%;
                padding-right: 5%;
            }
        }