body { font-family: Arial, sans-serif; margin: 20px; }
	    
.form-box { border: 1px solid #ddd; padding: 20px; margin-bottom: 20px; border-radius: 10px; }
input { display: block; margin: 10px 0; padding: 8px; width: 250px; }
button { padding: 8px 15px; cursor: pointer; }
.result { margin-top: 10px; color: green; font-weight: bold; }
.error { color: red; }