* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0a0e17;
            color: #e0e0e0;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: #ff7b00;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ffaa44;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            display: block;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%);
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: #ff7b00;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, #ff7b00, #ffcc80);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo a:hover {
            text-decoration: none;
            transform: scale(1.05);
            display: inline-block;
            transition: transform 0.3s;
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            font-size: 1.1rem;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 5px;
        }
        .desktop-nav a:hover {
            background-color: rgba(255, 123, 0, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ff7b00;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #1a237e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 15px;
            border-bottom: 1px solid #3949ab;
            font-size: 1.2rem;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #111827;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin-left: 10px;
            color: #ff7b00;
        }
        main {
            padding: 40px 0;
            background-color: #0f172a;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
            margin-bottom: 40px;
        }
        article {
            padding: 0 20px;
        }
        h1 {
            font-size: 3.5rem;
            color: #ff7b00;
            text-align: center;
            margin-bottom: 30px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            border-bottom: 3px solid #ff7b00;
            padding-bottom: 20px;
        }
        h2 {
            font-size: 2.5rem;
            color: #4fc3f7;
            margin: 40px 0 20px;
            padding-left: 10px;
            border-left: 5px solid #4fc3f7;
        }
        h3 {
            font-size: 2rem;
            color: #80deea;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.5rem;
            color: #b3e5fc;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 123, 0, 0.1);
            padding: 20px;
            border-left: 5px solid #ff7b00;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .emoji {
            font-size: 1.5rem;
            margin-right: 10px;
        }
        .image-container {
            text-align: center;
            margin: 40px 0;
        }
        .image-container img {
            max-width: 80%;
            box-shadow: 0 8px 20px rgba(0,0,0,0.6);
            transition: transform 0.5s ease;
        }
        .image-container img:hover {
            transform: scale(1.03);
        }
        .caption {
            font-style: italic;
            color: #aaa;
            margin-top: 10px;
            font-size: 1rem;
        }
        .functional-section {
            background-color: #1e293b;
            padding: 30px;
            border-radius: 15px;
            margin: 50px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.4);
        }
        .functional-section h2 {
            color: #ffb74d;
            border-left: 5px solid #ffb74d;
        }
        form {
            display: grid;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border: 2px solid #3949ab;
            border-radius: 8px;
            background-color: #0a0e17;
            color: #e0e0e0;
            font-size: 1.1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #ff7b00;
            outline: none;
        }
        button {
            padding: 15px 30px;
            background: linear-gradient(90deg, #ff7b00, #ff9800);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.2rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 123, 0, 0.4);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 20px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2.5rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffcc00;
        }
        footer {
            background-color: #1a237e;
            padding: 50px 0 20px;
            color: #bbbbbb;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: #ff7b00;
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        .friend-links {
            list-style: none;
        }
        .friend-links li {
            margin-bottom: 15px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3949ab;
            font-size: 1rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.7rem;
            }
            h4 {
                font-size: 1.3rem;
            }
            p {
                font-size: 1.1rem;
            }
            .functional-section {
                padding: 20px;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                width: 95%;
                padding: 0 10px;
            }
            h1 {
                font-size: 2rem;
            }
            .logo a {
                font-size: 1.8rem;
            }
        }