* {
            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: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight {
            background: linear-gradient(120deg, #a8edea 0%, #fed6e3 100%);
            padding: 2px 6px;
            border-radius: 4px;
        }
        .section-spacing {
            padding: 60px 0;
        }
        .mobile-only { display: none; }
        .site-header {
            background: linear-gradient(90deg, #1a2980 0%, #26d0ce 100%);
            color: white;
            padding: 15px 0;
            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;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            font-family: 'Arial Black', Gadget, sans-serif;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(to right, #FFD700, #FFEC8B);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 15px;
            border-radius: 20px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover, .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #1a2980;
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 15px;
            text-decoration: none;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f0f8ff;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #26d0ce;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: url('https://images.unsplash.com/photo-1594489428504-5c0c98030c4d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 100px 20px;
            position: relative;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 30, 60, 0.7);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 25px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 30px;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .article-content {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background: #f8fafc;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        h1 { font-size: 2.8rem; margin: 30px 0 20px; color: #1a2980; }
        h2 { font-size: 2.2rem; margin: 50px 0 20px; color: #26a0da; border-bottom: 3px solid #e4edf5; padding-bottom: 10px; }
        h3 { font-size: 1.8rem; margin: 40px 0 15px; color: #2d545e; }
        h4 { font-size: 1.5rem; margin: 30px 0 12px; color: #555; }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 10px;
        }
        blockquote {
            border-left: 5px solid #26d0ce;
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            color: #555;
            background-color: #f9f9f9;
            padding: 20px;
            border-radius: 0 10px 10px 0;
        }
        .feature-box {
            background: linear-gradient(145deg, #e6f7ff, #ccffff);
            border-left: 6px solid #1a2980;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .interactive-form {
            background: #f0f8ff;
            padding: 25px;
            border-radius: 10px;
            margin: 40px 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #26d0ce;
            outline: none;
        }
        button {
            background: linear-gradient(to right, #1a2980, #26d0ce);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(38, 208, 206, 0.4);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #FFD700;
            margin: 10px 0;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .article-image {
            margin: 30px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 10px;
            background: #f9f9f9;
        }
        .related-links {
            background: #eef7ff;
            padding: 20px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .related-links h3 { border: none; }
        .related-links ul { list-style: none; margin-left: 0; }
        .related-links li { margin-bottom: 12px; }
        .related-links a {
            color: #1a2980;
            text-decoration: none;
            font-weight: 500;
            padding: 5px 0;
            display: block;
            border-bottom: 1px dashed #b0e0e6;
            transition: all 0.3s;
        }
        .related-links a:hover {
            color: #26d0ce;
            padding-left: 10px;
            border-bottom-style: solid;
        }
        .site-footer {
            background: linear-gradient(90deg, #1a2980 0%, #163172 100%);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: #FFD700;
            margin-bottom: 20px;
            border-bottom: 2px solid #26d0ce;
            padding-bottom: 8px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 12px 15px;
            margin-bottom: 10px;
            border-radius: 6px;
            transition: background 0.3s;
        }
        friend-link a {
            color: #b0e0e6;
            text-decoration: none;
            display: flex;
            justify-content: space-between;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .mobile-only { display: block; }
            .main-nav ul { display: none; }
            .hamburger { display: block; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1.1rem; }
            .article-content { padding: 25px; }
            .header-container { flex-wrap: wrap; }
        }
        @media (max-width: 480px) {
            .hero { padding: 70px 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.5rem; }
        }