* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f172a;
            color: #e2e8f0;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #60a5fa;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #38bdf8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
        .py-4 { padding-top: 2rem; padding-bottom: 2rem; }
        .py-8 { padding-top: 4rem; padding-bottom: 4rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-6 { margin-bottom: 3rem; }
        .text-center { text-align: center; }
        .text-highlight { color: #fbbf24; font-weight: bold; }
        .bg-dark { background-color: #1e293b; }
        .rounded { border-radius: 8px; }
        .shadow { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3); }
        .site-header {
            background-color: #1e293b;
            border-bottom: 2px solid #334155;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #60a5fa, #38bdf8);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            text-decoration: none;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            bottom: 0;
            left: 0;
            background-color: #38bdf8;
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #e2e8f0;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #1e293b;
            padding: 1rem;
            border-top: 1px solid #334155;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem;
            border-bottom: 1px solid #334155;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #94a3b8;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background-color: #1e293b;
            border-radius: 12px;
            padding: 3rem;
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3.2rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: #f8fafc;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            margin: 3rem 0 1.5rem;
            color: #e2e8f0;
            border-left: 5px solid #60a5fa;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem;
            color: #cbd5e1;
        }
        h4 {
            font-size: 1.4rem;
            margin: 2rem 0 1rem;
            color: #94a3b8;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #cbd5e1;
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            padding: 1rem 0;
            border-top: 1px solid #334155;
            border-bottom: 1px solid #334155;
            margin-bottom: 3rem;
            color: #94a3b8;
            font-size: 0.95rem;
        }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            margin: 2rem 0;
        }
        blockquote {
            border-left: 4px solid #fbbf24;
            padding: 1.5rem 2rem;
            margin: 2.5rem 0;
            background-color: #334155;
            font-style: italic;
            color: #e2e8f0;
        }
        .highlight-box {
            background: linear-gradient(135deg, #1e40af, #1e3a8a);
            padding: 2rem;
            border-radius: 10px;
            margin: 2.5rem 0;
            border-left: 6px solid #fbbf24;
        }
        .interactive-module {
            background-color: #0f172a;
            border: 1px solid #334155;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
        }
        .module-title {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: #fbbf24;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            background-color: #1e293b;
            border: 1px solid #475569;
            border-radius: 6px;
            color: #e2e8f0;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #60a5fa;
        }
        button {
            background: linear-gradient(90deg, #3b82f6, #1d4ed8);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #1d4ed8, #1e40af);
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            margin: 1rem 0;
        }
        .star-rating .star {
            color: #475569;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #fbbf24;
        }
        footer {
            background-color: #0f172a;
            border-top: 2px solid #334155;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }
        .footer-links h4 {
            color: #f8fafc;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .friend-link {
            background-color: #1e293b;
            padding: 0.8rem 1.5rem;
            border-radius: 20px;
            border: 1px solid #334155;
            transition: all 0.3s;
        }
        .friend-link:hover {
            background-color: #334155;
            border-color: #60a5fa;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            article { padding: 1.5rem; }
            .footer-links { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            .lead { font-size: 1.1rem; }
            .article-meta { flex-direction: column; align-items: flex-start; gap: 10px; }
        }