body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

.header-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #f5f5f5;
    padding: 15px 20px;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ... (todos os estilos CSS do arquivo original) ... */

.pergunta-formulario {
    margin-bottom: 15px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.opcoes-resposta {
    margin-top: 5px;
}

.opcao-resposta {
    margin-right: 10px;
}