* {
    box-sizing: border-box;
    margin: 0;
    font-family: Arial, sans-serif;
}

body {
    padding: 40px;
}

.main-container {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.left-column, .input-group, .right-column {
    display: flex;
    flex-direction: column;
}

.left-column { gap: 20px; }
.input-group { gap: 15px; padding: 15px 0; border-top: 1px solid #eee; }
.input-group:first-of-type { border-top: none; }

label {
    font-weight: bold;
    margin-bottom: 10px;
}

input, textarea, button {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #7a7a7a;
    border-radius: 4px;
}

textarea { min-height: 100px; }
button { cursor: pointer; background: #f8f9fa; }
button:hover { background: #e2e6ea; }

#responseOutput {
    flex-grow: 1;
    min-height: 600px;
    font-family: monospace;
}