body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
}
.container {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 400px;
}
h1 {
    text-align: center;
    margin-bottom: 20px;
}
label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
input, select, textarea, button {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
button {
    background-color: #28a745;
    color: white;
    border: none;
    cursor: pointer;
    width: auto;
    padding: 10px 20px;
}
button:hover {
    background-color: #218838;
}
.output {
    margin-top: 20px;
    padding: 10px;
    background: #e9ecef;
    border-radius: 4px;
}