:root {
            --primary-dark: #1a237e;
            --primary-main: #283593;
            --primary-light: #3949ab;
            --accent-gold: #ffb300;
            --accent-silver: #b0bec5;
            --text-primary: #2c3e50;
            --text-secondary: #546e7a;
            --bg-light: #f8f9fa;
            --bg-section: #ffffff;
            --border-color: #e0e0e0;
            --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-medium: 0 6px 20px rgba(0, 0, 0, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            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: var(--text-primary);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-main);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-main));
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow-medium);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            background: linear-gradient(to right, #ffb300, #ffeb3b);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        .my-logo a {
            color: transparent;
            text-decoration: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: var(--bg-section);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-main);
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            left: 0;
            bottom: 0;
            transition: var(--transition);
        }
        .nav-links a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 35, 126, 0.85), rgba(40, 53, 147, 0.9)), url('https://images.unsplash.com/photo-1534423861386-85a16f5d13fd?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') no-repeat center center/cover;
            color: white;
            padding: 4rem 0;
            text-align: center;
            margin-bottom: 2rem;
            border-radius: 0 0 var(--radius) var(--radius);
        }
        .hero-section h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .hero-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 1.5rem;
            opacity: 0.9;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        .main-content {
            background: var(--bg-section);
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow-light);
        }
        .sidebar {
            background: var(--bg-section);
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow-light);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1, h2, h3, h4 {
            color: var(--primary-dark);
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            padding-left: 0.5rem;
            border-left: 4px solid var(--primary-light);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--text-primary);
        }
        h4 {
            font-size: 1.1rem;
            color: var(--text-secondary);
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        strong {
            color: var(--primary-main);
            font-weight: 700;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid var(--accent-gold);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        ul, ol {
            padding-left: 2rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .internal-links {
            background-color: #f1f8e9;
            padding: 1.2rem;
            border-radius: var(--radius);
            margin: 1.5rem 0;
        }
        .internal-links h4 {
            margin-top: 0;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow-medium);
            margin: 1.5rem auto;
            display: block;
            border: 5px solid white;
        }
        .module {
            background: var(--bg-section);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 1.5rem;
            margin: 2rem 0;
            box-shadow: var(--shadow-light);
        }
        .module h3 {
            margin-top: 0;
            color: var(--primary-main);
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(40, 53, 147, 0.1);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary-main), var(--primary-light));
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, var(--primary-light), var(--accent-gold));
            transform: translateY(-2px);
            box-shadow: var(--shadow-medium);
            text-decoration: none;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            direction: ltr;
        }
        .rating-stars i {
            color: var(--accent-silver);
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: var(--accent-gold);
        }
        .site-footer {
            background: var(--primary-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h4 {
            color: var(--accent-gold);
            margin-top: 0;
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 0.5rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            list-style: none;
            padding: 0;
        }
        .friend-links a {
            color: var(--accent-silver);
            background: rgba(255, 255, 255, 0.05);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        .friend-links a:hover {
            background: rgba(255, 179, 0, 0.2);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: var(--accent-silver);
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                background: var(--primary-main);
                width: 100%;
                flex-direction: column;
                align-items: center;
                padding: 2rem 0;
                gap: 1.5rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: var(--transition);
                z-index: 999;
            }
            .nav-links.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .main-content {
                padding: 1.5rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .last-updated {
            font-style: italic;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed var(--border-color);
        }