* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #f5f5f5; padding: 20px; }
.container { max-width: 800px; margin: 0 auto; background: white; padding: 30px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
h1 { color: #007bff; margin-bottom: 20px; }
.form-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 5px; font-weight: bold; color: #333; }
input, textarea { width: 100%; padding: 10px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px; }
textarea { min-height: 150px; font-family: monospace; }
button { padding: 12px 30px; background: #007bff; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; }
button:hover { background: #0056b3; }
.response { margin-top: 20px; padding: 15px; border-radius: 4px; display: none; }
.response.success { background: #d4edda; border: 1px solid #c3e6cb; color: #155724; }
.response.error { background: #f8d7da; border: 1px solid #f5c6cb; color: #721c24; }
.response pre { margin-top: 10px; background: rgba(0,0,0,0.05); padding: 10px; border-radius: 4px; overflow-x: auto; }
.info { background: #e7f3ff; padding: 15px; border-radius: 4px; margin-bottom: 20px; border-left: 4px solid #007bff; }