* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #f0f0f0;
            background-color: #0d1b2a;
            background-image: linear-gradient(to bottom, #0d1b2a, #1b263b);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4cc9f0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #72efdd;
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #1b263b;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: bold;
            color: #ffd700;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-family: 'Georgia', serif;
        }
        .my-logo:hover {
            color: #ffed4e;
            text-decoration: none;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 2rem;
        }
        .nav-links a {
            font-size: 1.1rem;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .nav-links a:hover {
            background-color: #415a77;
            text-decoration: none;
        }
        .breadcrumb {
            background-color: #415a77;
            padding: 0.8rem;
            border-radius: 5px;
            margin-top: 1rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #caf0f8;
        }
        .breadcrumb a::after {
            content: " › ";
            margin: 0 5px;
            color: #ffd700;
        }
        .breadcrumb a:last-child::after {
            content: "";
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #ffd700;
            cursor: pointer;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background-color: #1b263b;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 3rem;
            color: #ffd700;
            margin-bottom: 1.5rem;
            text-align: center;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
        }
        h2 {
            font-size: 2.2rem;
            color: #4cc9f0;
            margin: 2rem 0 1rem;
            border-bottom: 2px solid #415a77;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #72efdd;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #caf0f8;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #2d3748;
            padding: 1.5rem;
            border-left: 5px solid #ffd700;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        em {
            color: #ffb347;
            font-style: italic;
        }
        strong {
            color: #ffd700;
            font-weight: bold;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5);
            border: 3px solid #415a77;
        }
        .functional-section {
            background-color: #2d3748;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .functional-section h3 {
            color: #ffd700;
        }
        form {
            display: grid;
            gap: 1rem;
            margin-top: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 2px solid #415a77;
            border-radius: 5px;
            background-color: #1b263b;
            color: #f0f0f0;
            font-size: 1rem;
            width: 100%;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4cc9f0;
        }
        button {
            padding: 0.8rem 1.5rem;
            background-color: #4cc9f0;
            color: #0d1b2a;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s ease;
            justify-self: start;
        }
        button:hover {
            background-color: #72efdd;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            margin-top: 1rem;
        }
        .rating label {
            cursor: pointer;
            font-size: 1.5rem;
            color: #ffd700;
        }
        .rating input {
            display: none;
        }
        .rating input:checked ~ label {
            color: #ffb347;
        }
        footer {
            background-color: #1b263b;
            padding: 2rem 0;
            margin-top: auto;
            border-top: 5px solid #415a77;
        }
        friend-link {
            display: block;
            background-color: #2d3748;
            padding: 1rem;
            border-radius: 10px;
            margin-bottom: 1.5rem;
            text-align: center;
            font-size: 1.2rem;
        }
        friend-link a {
            color: #ffd700;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            color: #caf0f8;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 0.5rem 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            article {
                padding: 1.5rem;
            }
            .functional-section {
                padding: 1.5rem;
            }
        }
        @media (min-width: 769px) {
            .nav-links {
                display: flex !important;
            }
        }