* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #0c3b2e 0%, #1a1a2e 100%);
            color: #f0f0f0;
            line-height: 1.8;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4ecdc4;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #ffd166;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #ff6b6b, #ff8e53);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: bold;
            border: none;
            cursor: pointer;
            transition: all 0.4s ease;
            text-align: center;
            box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 107, 0.6);
            text-decoration: none;
        }
        header {
            background: rgba(10, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #4ecdc4;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        .logo a:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav ul li a {
            font-size: 1.1rem;
            font-weight: 600;
            padding: 8px 15px;
            border-radius: 5px;
        }
        nav ul li a:hover {
            background: rgba(78, 205, 196, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4ecdc4;
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(255, 255, 255, 0.05);
            margin-top: 10px;
            border-radius: 8px;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb ul li {
            margin-right: 10px;
            color: #aaa;
        }
        .breadcrumb ul li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: #4ecdc4;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        article {
            background: rgba(30, 30, 46, 0.8);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 3.2rem;
            color: #ffd166;
            margin-bottom: 25px;
            line-height: 1.2;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
        }
        h2 {
            font-size: 2.4rem;
            color: #4ecdc4;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #ff6b6b;
        }
        h3 {
            font-size: 1.8rem;
            color: #ffb347;
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.15rem;
            text-align: justify;
        }
        .highlight {
            background: rgba(255, 214, 102, 0.15);
            border-left: 5px solid #ffd166;
            padding: 20px;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        .term {
            font-weight: bold;
            color: #ffd166;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 8px;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .interactive-box {
            background: rgba(10, 25, 47, 0.7);
            padding: 30px;
            border-radius: 15px;
            border: 2px solid #4ecdc4;
        }
        .interactive-box h3 {
            color: #ff6b6b;
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        input, textarea, select {
            padding: 15px;
            border-radius: 10px;
            border: 2px solid #444;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4ecdc4;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffd166;
        }
        .featured-image {
            margin: 40px auto;
            text-align: center;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
            max-width: 900px;
        }
        .featured-image figcaption {
            font-style: italic;
            padding: 10px;
            background: rgba(0, 0, 0, 0.5);
            color: #ccc;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            background: rgba(78, 205, 196, 0.1);
        }
        footer {
            background: #0a192f;
            padding: 40px 0 20px;
            border-top: 3px solid #ff6b6b;
            text-align: center;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            .header-inner { flex-wrap: wrap; }
            nav ul { gap: 15px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(10, 25, 47, 0.98);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 20px;
                border-top: 2px solid #4ecdc4;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            }
            nav ul.active { display: flex; }
            .header-inner { position: relative; }
            .interactive-section { grid-template-columns: 1fr; }
            article { padding: 25px; }
        }
        @media (max-width: 576px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .container { padding: 0 15px; }
            .logo a { font-size: 2rem; }
        }