* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #2c3e50;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        .header {
            background: linear-gradient(90deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #f39c12;
            text-transform: uppercase;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            color: #ffd700;
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-links a:hover {
            background: rgba(255,255,255,0.1);
            color: #f39c12;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #f39c12;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background: #dfe6e9;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #2d3436;
        }
        .breadcrumb a:hover {
            color: #e74c3c;
        }
        .main-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        @media (min-width: 768px) {
            .main-container {
                grid-template-columns: 3fr 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a1a2e;
            margin-bottom: 1.5rem;
            border-bottom: 4px solid #f39c12;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2c3e50;
            margin: 2rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #3498db;
        }
        h3 {
            font-size: 1.5rem;
            color: #34495e;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #5d6d7e;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: #fffacd;
            padding: 1rem;
            border-left: 4px solid #f1c40f;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .quote {
            font-style: italic;
            color: #7f8c8d;
            border-left: 3px solid #95a5a6;
            padding-left: 1rem;
            margin: 1.5rem 0;
        }
        .featured-image {
            margin: 2rem auto;
            text-align: center;
        }
        .featured-image img {
            max-width: 80%;
            box-shadow: 0 8px 16px rgba(0,0,0,0.2);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .sidebar h3 {
            color: #1a1a2e;
            border-bottom: 2px solid #f39c12;
            padding-bottom: 0.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #bdc3c7;
            border-radius: 6px;
            font-size: 1rem;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 5px rgba(52,152,219,0.5);
        }
        button {
            background: linear-gradient(90deg, #3498db 0%, #2c3e50 100%);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: transform 0.3s ease, background 0.3s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #2980b9 0%, #1a252f 100%);
            transform: translateY(-2px);
        }
        .footer {
            background: #1a1a2e;
            color: white;
            padding: 2rem;
            text-align: center;
            margin-top: 3rem;
        }
        .friend-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.8rem 1.2rem;
            border-radius: 6px;
            transition: background 0.3s ease;
        }
        friend-link a {
            color: #f39c12;
            font-weight: 600;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .copyright {
            margin-top: 1.5rem;
            font-size: 0.9rem;
            color: #bdc3c7;
            border-top: 1px solid #34495e;
            padding-top: 1rem;
        }
        @media (max-width: 768px) {
            .header {
                padding: 1rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #16213e;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                z-index: 1000;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article, .sidebar {
                padding: 1.5rem;
            }
            .main-container {
                padding: 1rem;
                grid-template-columns: 1fr;
            }
        }