* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0a0e17;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #74c0fc;
            text-decoration: underline;
        }
        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; }
        .italic { font-style: italic; }
        .highlight {
            background: linear-gradient(90deg, transparent 0%, #1c3b5a 50%, transparent 100%);
            padding: 2px 8px;
            border-radius: 3px;
        }
        .site-header {
            background: linear-gradient(135deg, #121212 0%, #1a1a2e 100%);
            padding: 1rem 0;
            border-bottom: 2px solid #2d3748;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, #00b4db, #0083b0);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-decoration: none;
        }
        .my-logo a:hover {
            text-decoration: none;
            filter: brightness(1.2);
        }
        .breadcrumb {
            padding: 10px 0;
            background-color: #151a28;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li {
            margin-right: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: #6c757d;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: #cbd5e0;
            font-weight: 600;
            padding: 5px 10px;
            border-radius: 4px;
            font-size: 1.05rem;
        }
        .main-nav a:hover {
            background-color: #2d3748;
            text-decoration: none;
            color: #ffffff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .main-nav ul {
                flex-direction: column;
                position: fixed;
                top: 80px;
                right: -100%;
                background-color: #1a1a2e;
                width: 70%;
                height: calc(100vh - 80px);
                padding-top: 2rem;
                transition: right 0.4s ease;
                box-shadow: -5px 0 15px rgba(0,0,0,0.5);
                z-index: 999;
            }
            .main-nav.active ul {
                right: 0;
            }
            .hamburger {
                display: block;
            }
            .main-nav a {
                display: block;
                padding: 15px 20px;
                border-bottom: 1px solid #2d3748;
            }
        }
        .main-content {
            padding: 2rem 0;
            background-color: #0f141f;
            min-height: 100vh;
        }
        article {
            background: rgba(20, 25, 40, 0.85);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 3.2rem;
            color: #00b4db;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 0 2px 5px rgba(0, 180, 219, 0.3);
            border-bottom: 3px solid #2d3748;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.4rem;
            color: #4dabf7;
            margin-top: 2.8rem;
            margin-bottom: 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #00b4db;
        }
        h3 {
            font-size: 1.8rem;
            color: #74c0fc;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #a5d8ff;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        p {
            margin-bottom: 1.4rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #b3d9ff;
            font-weight: 300;
            margin-bottom: 2rem;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
            background: #151a28;
            padding: 2rem;
            border-radius: 10px;
        }
        .interactive-box {
            background: #1e2538;
            padding: 1.5rem;
            border-radius: 8px;
            border-top: 4px solid #00b4db;
        }
        .interactive-box h3 {
            color: #ffd43b;
            margin-top: 0;
            font-size: 1.5rem;
        }
        .interactive-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .interactive-box input,
        .interactive-box textarea,
        .interactive-box select {
            padding: 12px;
            border: 1px solid #4dabf7;
            border-radius: 6px;
            background-color: #0a0e17;
            color: #fff;
            font-size: 1rem;
        }
        .interactive-box button {
            padding: 12px 24px;
            background: linear-gradient(to right, #00b4db, #0083b0);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .interactive-box button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 180, 219, 0.4);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2rem;
            margin: 1rem 0;
            color: #ffd43b;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .featured-image {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid #2d3748;
            box-shadow: 0 10px 25px rgba(0,0,0,0.6);
        }
        .featured-image img {
            transition: transform 0.5s ease;
            width: 100%;
        }
        .featured-image:hover img {
            transform: scale(1.03);
        }
        .image-caption {
            font-style: italic;
            color: #a0aec0;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .related-links {
            background: #1a1f2e;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 5px solid #4dabf7;
        }
        .related-links h4 {
            color: #ffd43b;
            margin-top: 0;
        }
        .related-links ul {
            list-style-type: square;
            padding-left: 1.5rem;
            columns: 2;
        }
        .related-links li {
            margin-bottom: 8px;
        }
        @media (max-width: 600px) {
            .related-links ul { columns: 1; }
        }
        .site-footer {
            background: #050811;
            color: #a0aec0;
            padding: 3rem 0 1.5rem;
            border-top: 2px solid #2d3748;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #4dabf7;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 8px;
            padding: 8px 12px;
            background: rgba(255,255,255,0.05);
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(77, 171, 247, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #6c757d;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #6c757d;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #4dabf7;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
            .container { padding: 0 15px; }
            article { padding: 1.5rem; }
            .interactive-section { grid-template-columns: 1fr; }
        }