body {
  font-family: 'Roboto', sans-serif;
  background: #f9f9f9;
  margin: 0;
  padding: 20px;
  color: #333;
}

.gst-container {
  max-width: 800px;
  margin: auto;
  background: #fff;
  border: 1px solid #E4E4E7;
  padding: 20px;
	margin-left: -20px;
  margin-right: -40px;
  border-radius: 8px;
  box-shadow: 0 0 10px #eee;
}

h2 {
  text-align: center;
  color: #48d6de;
}

.gst-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gst-form input,
.gst-form select {
  padding: 10px;
  border: 1px solid #E4E4E7;
  border-radius: 4px;
  font-size: 16px;
}

.button-group {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.button-group button {
  flex: 1;
  background-color: #48d6de;
  color: white;
  border: none;
  padding: 12px;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
}

.button-group button:hover {
  background-color: #3cc2ca;
}

.vertical-result {
  margin-top: 20px;
  color: #596172;
  font-size: 16px;
}

.vertical-result p {
  margin: 6px 0;
}

.copy-btn {
  margin-top: 15px;
  background-color: #596172;
  color: white;
  padding: 10px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.copy-btn:hover {
  background-color: #4e575f;
}

#copyStatus {
  margin-top: 10px;
  color: green;
}