* {
            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;
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #3498db;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a5276;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffcc00;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .logo a:hover {
            color: #ffdb4d;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-links a {
            color: white;
            font-size: 1.1rem;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            transition: background 0.3s ease;
        }
        .nav-links a:hover {
            background: rgba(255,255,255,0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #e8eaf6;
            padding: 12px 20px;
            margin-top: 10px;
            border-radius: 5px;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #5c6bc0;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 20px auto;
        }
        article {
            padding: 0 20px;
        }
        h1, h2, h3 {
            color: #2c3e50;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            margin-bottom: 30px;
            color: #1a237e;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #3498db;
            padding-left: 15px;
            margin-top: 40px;
        }
        h3 {
            font-size: 1.8rem;
            color: #4a148c;
            margin-top: 30px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background: #fffacd;
            padding: 20px;
            border-left: 4px solid #ffcc00;
            margin: 25px 0;
            border-radius: 5px;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 8px;
        }
        .wallpaper-img {
            width: 80%;
            margin: 30px auto;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            transition: transform 0.5s ease;
        }
        .wallpaper-img:hover {
            transform: scale(1.02);
        }
        .wallpaper-img img {
            width: 100%;
            height: auto;
        }
        .form-section {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 10px;
            margin: 40px 0;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2c3e50;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #3498db;
            outline: none;
        }
        button {
            background: #3498db;
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }
        button:hover {
            background: #1a5276;
            transform: translateY(-3px);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
            padding: 30px;
            background: #2c3e50;
            border-radius: 10px;
        }
        .web-link {
            background: #34495e;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
        }
        .web-link a {
            color: #ecf0f1;
            font-size: 1.1rem;
            font-weight: 600;
            display: block;
            padding: 10px;
            transition: color 0.3s ease;
        }
        .web-link a:hover {
            color: #ffcc00;
        }
        footer {
            background: #1a237e;
            color: white;
            text-align: center;
            padding: 30px 20px;
            margin-top: 40px;
        }
        .copyright {
            margin-top: 20px;
            font-size: 0.95rem;
            opacity: 0.9;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                flex-direction: column;
                gap: 15px;
                display: none;
                width: 100%;
                margin-top: 20px;
            }
            .nav-links a {
                display: block;
                padding: 12px;
                text-align: center;
                background: rgba(255,255,255,0.1);
                border-radius: 8px;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 25px;
                right: 20px;
            }
            #nav-toggle:checked ~ .nav-links {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .wallpaper-img {
                width: 100%;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        .text-center {
            text-align: center;
        }
        .bold {
            font-weight: 800;
            color: #e74c3c;
        }
        .spacing {
            margin: 30px 0;
        }