
body {
    font-family: Arial, sans-serif;
    background: #f3f3f3;
    margin: 0;
    padding: 0;
}
.container {
    width: 90%;
    max-width: 800px;
    margin: 40px auto;
    background: white;
    padding: 20px;
    border-radius: 6px;
    box-shadow: 0 0 12px rgba(0,0,0,0.2);
}
textarea, input, select {
    width: 100%;
    padding: 8px;
    margin-top: 4px;
    margin-bottom: 16px;
}
button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}
pre {
    background: #eee;
    padding: 10px;
    overflow-x: auto;
}
