* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #f8f9fa;
            background-image: linear-gradient(to bottom right, #f1f3f4 0%, #e9ecef 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #0d6efd; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #084298; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.5rem; }
        h1, h2, h3, h4 { font-weight: 700; color: #1a365d; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); border-bottom: 4px solid #0d6efd; padding-bottom: 0.5rem; margin-top: 1.5rem; }
        h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #20c997; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-top: 2rem; color: #2c5282; }
        h4 { font-size: 1.3rem; margin-top: 1.5rem; color: #4a5568; }
        p { margin-bottom: 1.5rem; text-align: justify; hyphens: auto; }
        .lead { font-size: 1.25rem; color: #555; font-weight: 300; }
        .highlight { background-color: #fff3cd; padding: 0.2em 0.4em; border-radius: 3px; font-weight: 500; }
        .emoji { font-size: 1.2em; margin-right: 0.3em; }
        .last-updated { font-size: 0.9rem; color: #6c757d; font-style: italic; margin-bottom: 2rem; padding: 0.5rem; background: #e9ecef; border-radius: 5px; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        main { flex: 1; padding: 2rem 0; }
        header { background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); color: white; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-top { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; }
        .my-logo {
            font-family: 'Trebuchet MS', sans-serif;
            font-size: 2rem;
            font-weight: 900;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .my-logo span { color: #ffd43b; }
        .my-logo:hover { text-decoration: none; opacity: 0.9; }
        .search-box { display: flex; max-width: 400px; width: 100%; }
        .search-box input { flex: 1; padding: 0.75rem; border: none; border-radius: 5px 0 0 5px; font-size: 1rem; }
        .search-box button { background: #ffd43b; color: #333; border: none; border-radius: 0 5px 5px 0; padding: 0 1.5rem; cursor: pointer; font-weight: bold; transition: background 0.3s; }
        .search-box button:hover { background: #fcc419; }
        nav { background: rgba(255,255,255,0.05); backdrop-filter: blur(10px); }
        .nav-container { display: flex; justify-content: space-between; align-items: center; position: relative; }
        .main-nav { display: flex; list-style: none; }
        .main-nav li { position: relative; }
        .main-nav a {
            display: block;
            padding: 1rem 1.2rem;
            color: white;
            font-weight: 500;
            border-radius: 5px;
            margin: 0 0.2rem;
            transition: background 0.3s;
        }
        .main-nav a:hover { background: rgba(255,255,255,0.15); text-decoration: none; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: white; cursor: pointer; padding: 0.5rem; }
        .breadcrumb { padding: 1rem 0; font-size: 0.9rem; color: #adb5bd; }
        .breadcrumb a { color: #dee2e6; }
        .breadcrumb a:hover { color: white; }
        .breadcrumb span { margin: 0 0.5rem; }
        .article-content { background: white; border-radius: 15px; padding: 2.5rem; box-shadow: 0 10px 30px rgba(0,0,0,0.08); margin-bottom: 2rem; }
        .featured-img { width: 100%; max-height: 500px; object-fit: cover; border-radius: 10px; margin: 2rem auto; box-shadow: 0 5px 15px rgba(0,0,0,0.1); border: 1px solid #dee2e6; }
        .content-block { margin-bottom: 2.5rem; }
        .inline-link { font-weight: 600; border-bottom: 2px dotted #20c997; }
        .inline-link:hover { border-bottom-style: solid; }
        .interactive-module {
            background: #e7f5ff;
            border-left: 5px solid #339af0;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .module-title { display: flex; align-items: center; gap: 10px; color: #1c7ed6; margin-bottom: 1rem; }
        .rating-stars { display: flex; gap: 5px; font-size: 1.5rem; color: #ffc107; margin: 1rem 0; }
        .rating-stars i { cursor: pointer; transition: transform 0.2s; }
        .rating-stars i:hover { transform: scale(1.2); }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: #495057; }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus, .form-group textarea:focus { border-color: #339af0; outline: none; box-shadow: 0 0 0 3px rgba(51, 154, 240, 0.2); }
        .btn {
            display: inline-block;
            padding: 0.75rem 1.75rem;
            background: linear-gradient(to right, #0d6efd, #0b5ed7);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
        }
        .btn:hover { background: linear-gradient(to right, #0b5ed7, #0a58ca); transform: translateY(-2px); box-shadow: 0 5px 15px rgba(11, 94, 215, 0.3); text-decoration: none; color: white; }
        .btn-block { display: block; width: 100%; }
        footer { background: #1a365d; color: #dee2e6; padding: 3rem 0 1.5rem; margin-top: auto; }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2.5rem; margin-bottom: 2.5rem; }
        .footer-section h3 { color: #ffd43b; border-bottom: 2px solid #2d3748; padding-bottom: 0.5rem; margin-bottom: 1.5rem; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #adb5bd; }
        .footer-links a:hover { color: #ffd43b; padding-left: 5px; }
        friend-link {
            display: inline-block;
            background: #2d3748;
            color: #90cdf4;
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        friend-link:hover { background: #4a5568; color: white; text-decoration: none; transform: translateY(-3px); }
        .copyright { text-align: center; padding-top: 1.5rem; border-top: 1px solid #2d3748; color: #a0aec0; font-size: 0.9rem; }
        @media (max-width: 992px) {
            .main-nav { flex-wrap: wrap; }
            .article-content { padding: 1.8rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(30, 60, 114, 0.98);
                border-radius: 0 0 10px 10px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .main-nav.active { display: flex; }
            .main-nav li { width: 100%; }
            .main-nav a { padding: 1rem 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.1); margin: 0; border-radius: 0; }
            .header-top { flex-direction: column; gap: 1.2rem; }
            .search-box { max-width: 100%; }
            .footer-content { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 1rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.6rem; }
        }
        @media print {
            header, footer, .interactive-module, .breadcrumb, .hamburger { display: none; }
            body { background: white; color: black; }
            .article-content { box-shadow: none; padding: 0; }
            a { color: black; text-decoration: underline; }
        }