.waas-checkout-container { max-width: 600px; margin: 40px auto; padding: 40px; background: #fff; border-radius: 8px; box-shadow: 0 2px 20px rgba(0,0,0,0.1); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; }
.form-group input { width: 100%; padding: 10px; border: 1px solid #ddd; border-radius: 4px; }
#submit-btn { background: #0066cc; color: white; padding: 15px 30px; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; width: 100%; }
#submit-btn:disabled { background: #ccc; cursor: not-allowed; }
#availability-status { margin-top: 5px; font-size: 14px; }
#availability-status.available { color: green; }
#availability-status.unavailable { color: red; }
#errors { color: red; margin-top: 10px; }