body {
            font-family: Arial, sans-serif;
            max-width: 600px;
            margin: 0 auto;
            padding: 20px;
            background-color:  white;
        }
        .container {
            background-color:  pink;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        h1 {
            text-align: center;
            color: #333;
        }
        .form-group {
            margin-bottom: 15px;
        }
        label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
        }
        input {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-sizing: border-box;
        }
        button {
            background-color:  palevioletred;
            color: white;
            border: none;
            padding: 10px 15px;
            border-radius: 4px;
            cursor: pointer;
            width: 100%;
            font-size: 16px;
        }
        button:hover {
            background-color:  plum;
        }
        .switch-form {
            text-align: center;
            margin-top: 15px;
        }
        .switch-form a {
            color:  purple;
            cursor: pointer;
        }
        .hidden {
            display: none;
        }
        .question {
            margin-bottom: 20px;
        }
        .options {
            margin-top: 10px;
        }
        .option {
            padding: 10px;
            margin: 5px 0;
            background-color: #f9f9f9;
            border: 1px solid #ddd;
            border-radius: 4px;
            cursor: pointer;
        }
        .option:hover {
            background-color: #eee;
        }
        .selected {
            background-color: #d4edda;
            border-color: #c3e6cb;
        }
        .timer {
            text-align: right;
            font-weight: bold;
            margin-bottom: 15px;
        }
        .navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
        }
        .navigation button {
            width: 48%;
        }
        .results {
            text-align: center;
        }
        .score {
            font-size: 24px;
            font-weight: bold;
            margin: 20px 0;
        }