:root {
            --primary: #f5a623;
            --secondary: #4a90e2;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --accent: #e74c3c;
            --gray: #6c757d;
            --success: #2ecc71;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            color: var(--light);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--accent);
            text-shadow: 0 0 8px rgba(245, 166, 35, 0.5);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 3px solid var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 15px;
            border-radius: 5px;
        }
        nav a:hover {
            background: rgba(245, 166, 35, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            margin: 0 5px;
        }
        .breadcrumb a:first-child {
            margin-left: 0;
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 50px;
            padding: 30px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            border-left: 5px solid var(--primary);
        }
        h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.4rem;
            margin: 40px 0 20px;
            color: var(--primary);
            border-bottom: 2px solid rgba(245, 166, 35, 0.3);
            padding-bottom: 10px;
        }
        h3 {
            font-size: 1.8rem;
            margin: 30px 0 15px;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.4rem;
            margin: 25px 0 10px;
            color: var(--success);
        }
        p {
            margin-bottom: 25px;
            font-size: 1.15rem;
            text-align: justify;
        }
        .highlight {
            background: rgba(245, 166, 35, 0.1);
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .emoji {
            font-size: 1.4em;
            margin-right: 8px;
        }
        .image-container {
            text-align: center;
            margin: 40px 0;
        }
        .feature-img {
            max-width: 100%;
            height: auto;
            border-radius: 15px;
            border: 3px solid var(--primary);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            margin-top: 10px;
            font-style: italic;
            color: var(--gray);
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            padding: 30px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.4s ease;
        }
        .card:hover {
            transform: translateY(-10px);
            border-color: var(--primary);
            box-shadow: 0 15px 35px rgba(245, 166, 35, 0.2);
        }
        .card h3 {
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        input, textarea, select {
            padding: 15px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            color: var(--light);
            font-size: 1rem;
            transition: all 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        button {
            background: linear-gradient(45deg, var(--primary), var(--accent));
            color: white;
            border: none;
            padding: 16px 30px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(245, 166, 35, 0.3);
        }
        .rating {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 20px 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2.5rem;
            color: var(--gray);
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: var(--primary);
        }
        .related-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .related-link {
            background: rgba(74, 144, 226, 0.1);
            padding: 20px;
            border-radius: 10px;
            border: 1px solid rgba(74, 144, 226, 0.3);
            transition: all 0.3s;
        }
        .related-link:hover {
            background: rgba(74, 144, 226, 0.2);
            transform: translateX(10px);
        }
        footer {
            background: rgba(0, 0, 0, 0.8);
            padding: 50px 0 20px;
            margin-top: 60px;
            border-top: 3px solid var(--primary);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: var(--primary);
            margin-bottom: 25px;
            font-size: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 15px;
        }
        friend-link {
            display: inline-block;
            background: rgba(245, 166, 35, 0.1);
            padding: 10px 20px;
            margin: 5px;
            border-radius: 5px;
            border: 1px solid rgba(245, 166, 35, 0.3);
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(245, 166, 35, 0.2);
            transform: scale(1.05);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.6rem; }
            h2 { font-size: 2rem; }
            nav ul { gap: 15px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(26, 26, 46, 0.98);
                padding: 20px;
                border-top: 2px solid var(--primary);
            }
            nav.active ul {
                display: flex;
            }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.9rem; }
            .card { padding: 20px; }
            button { padding: 14px 20px; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .stagger-delay > *:nth-child(1) { animation-delay: 0.1s; }
        .stagger-delay > *:nth-child(2) { animation-delay: 0.2s; }
        .stagger-delay > *:nth-child(3) { animation-delay: 0.3s; }
        .stagger-delay > *:nth-child(4) { animation-delay: 0.4s; }