/* Reset de estilos padrão */
body, h1, h2, h3, ul, li, p, form, select, input, button {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: 0 auto;
}

/* Cabeçalho */
header {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

/* Formulários */
form {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
}

input, select, button {
    margin-bottom: 10px;
    padding: 8px;
    width: 100%;
    box-sizing: border-box;
}

/* Botão */
button {
    background-color: #333;
    color: #fff;
    cursor: pointer;
}

/* Listas */
ul {
    list-style: none;
}

/* Rodapé */
footer {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

/* Responsividade */
@media (max-width: 768px) {
    .container {
        width: 100%;
    }
}