header {
    position: fixed;
    top: 0;
    width: 100%;
    text-align: center;
    padding: 10px;
    background-color: #f8f8f8;
    font-size: 14px;
    color: #333;
    z-index: 1000; 
  }
  
  body {
    margin-top: 50px; 
  }
  
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1, h2 {
    text-align: center;
}

form {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

input[type="text"] {
    padding: 10px;
    width: 60%;
    font-size: 16px;
    border: 2px solid #007bff;
    border-radius: 4px;
}

button {
    padding: 10px;
    font-size: 16px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 10px;
}

button:hover {
    background-color: #0056b3;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 10px;
    text-align: center;
    border: 1px solid #ddd;
}

th {
    background-color: #007bff;
    color: white;
}

td {
    background-color: #f9f9f9;
}

@media (max-width: 600px) {
    input[type="text"] {
        width: 100%;
    }

    form {
        flex-direction: column;
    }

    button {
        width: 100%;
        margin-left: 0;
        margin-top: 10px;
    }
}
.erro {
    color: red;
    font-weight: bold;
    text-align: center;
    margin-top: 10px;
}

.legenda {
    margin-top: 20px;
    padding: 10px;
    background-color: #e9f5ff;
    border: 1px solid #007bff;
    border-radius: 8px;
}

.legenda h3 {
    text-align: center;
}

.legenda ul {
    list-style: none;
    padding: 0;
}

.legenda ul li {
    padding: 5px 0;
}

.legenda ul li strong {
    color: #007bff;
}