* {
            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-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
        }
        ul, ol {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .header {
            background: linear-gradient(135deg, #1a237e, #283593);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: bold;
            color: #ffeb3b;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: #ffd600;
        }
        .my-logo {
            font-family: 'Courier New', monospace;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .nav-desktop ul {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .nav-mobile {
            display: none;
            background-color: #1a237e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .nav-mobile a {
            color: white;
            padding: 0.75rem;
            display: block;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 0.75rem 2rem;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #5c6bc0;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        .main-content {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
            border-left: 6px solid #ffeb3b;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #c5cae9;
        }
        h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 1.5rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #5c6bc0;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #555;
            background-color: #f3f4fd;
            padding: 1rem;
            border-radius: 8px;
            border-left: 4px solid #1a73e8;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: bold;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .content-links {
            background-color: #f5f5f5;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .content-links h3 {
            margin-top: 0;
        }
        .content-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .content-links li {
            padding: 0.75rem;
            background: white;
            border-radius: 6px;
            transition: transform 0.3s ease;
        }
        .content-links li:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        .content-links a {
            color: #1a237e;
            font-weight: 500;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #1a73e8;
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
        }
        .btn {
            background: linear-gradient(to right, #1a73e8, #0d47a1);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn:hover {
            background: linear-gradient(to right, #0d47a1, #1a73e8);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(13, 71, 161, 0.3);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #ffc107;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.3s ease;
        }
        .rating i:hover {
            color: #ff9800;
        }
        .featured-image {
            margin: 2rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            max-height: 400px;
            object-fit: cover;
            width: 100%;
        }
        .image-caption {
            margin-top: 0.5rem;
            font-style: italic;
            color: #666;
            font-size: 0.9rem;
        }
        .footer {
            background: #1a237e;
            color: white;
            padding: 3rem 2rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffeb3b;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .footer-links a {
            color: #c5cae9;
        }
        .footer-links a:hover {
            color: #ffeb3b;
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin: 0.5rem 0.5rem 0.5rem 0;
            font-size: 0.9rem;
        }
        friend-link a {
            color: #ffeb3b;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 0.9rem;
            color: #c5cae9;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .container {
                padding: 0 1rem;
            }
            .main-content, .sidebar {
                padding: 1.5rem;
            }
            .content-links ul {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .header, .breadcrumb {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            h1 {
                font-size: 1.75rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .main-content, .sidebar {
            animation: fadeIn 0.8s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }