.gst-calculator-container{font-family:Arial,sans-serif;background:#f8f9fa;padding:20px;border:1px solid #dee2e6;border-radius:8px;max-width:600px;margin:auto}.gst-calculator-container h2{text-align:center;color:#333}.gst-field{margin-bottom:15px}.gst-field label{display:block;font-weight:700;margin-bottom:5px}.gst-field input,.gst-field select{width:100%;padding:10px;border:1px solid #ccc;border-radius:5px}button{display:block;width:100%;background-color:#e3783e;color:#fff;padding:10px;border:none;border-radius:5px;cursor:pointer;font-size:16px}button:hover{background-color:#c05921}#gst-results{background:#e9ecef;padding:15px;border-radius:5px;margin-top:20px}