<style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Noto Serif Devanagari', serif;
            background: linear-gradient(135deg, #e0f7fa, #b3e5fc);
            color: #1a237e;
            line-height: 1.6;
            padding: 20px;
        }

        header {
            text-align: center;
            padding: 20px 0;
            background: #01579b;
            color: white;
            border-radius: 10px 10px 0 0;
            margin-bottom: 20px;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 5px;
        }

        h2 {
            font-size: 1.5rem;
            font-weight: 400;
        }

        .navigation-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .navigation-buttons button {
            padding: 12px 25px;
            font-size: 1rem;
            border: none;
            border-radius: 8px;
            background: #0288d1;
            color: white;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s;
        }

        .navigation-buttons button:hover {
            background: #0277bd;
            transform: translateY(-2px);
        }

        .quiz-container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }

        .question {
            margin-bottom: 25px;
            padding: 15px;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            background: #f9f9f9;
        }

        .question p {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #0d47a1;
        }

        .answers {
            display: flex;
            flex-direction: column;
            gap: 8px; /* Space between options */
        }

        .answers label {
            font-size: 1rem;
            padding: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }

        .answers label:hover {
            background: #e3f2fd;
            border-radius: 5px;
        }

        .answers input {
            margin-right: 10px;
            vertical-align: middle;
        }

        .submit-btn {
            display: block;
            margin: 20px auto;
            padding: 12px 50px;
            background: #01579b;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .submit-btn:hover {
            background: #0277bd;
        }

        .result {
            text-align: center;
            font-size: 1.2rem;
            margin-top: 20px;
        }

        .correct {
            background: #c8e6c9;
            color: #2e7d32;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 15px;
        }

        .incorrect {
            background: #ffcdd2;
            color: #c62828;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 15px;
        }

        footer {
            text-align: center;
            padding: 15px;
            background: #01579b;
            color: white;
            margin-top: 30px;
            border-radius: 0 0 10px 10px;
            font-size: 0.9rem;
        }

        footer marquee {
            font-size: 1rem;
        }

        @media (max-width: 600px) {
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.2rem; }
            .quiz-container { padding: 15px; }
            .question p { font-size: 1rem; }
            .submit-btn { padding: 10px 30px; font-size: 1rem; }
        }
    </style>