.containerasa {
  max-width: 800px;
  margin: auto;
  padding: 2rem;
  background: #fff;
   border: 1px solid #d1fae5;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.1);
  margin-top: 40px;
  border-radius: 12px;
}

form label {
  display: block;
  font-weight: bold;
  margin: 15px 0 5px;
  color:#757575;
}
form input {
  width: 100%;
  padding: 10px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 15px;
}
form button {
  padding: 12px 20px;
  margin-top: 20px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
form button[type="submit"] {
  background-color: #2563eb;
  color: #fff;
}
form button.reset {
  background-color: #ff5081;
  color: #fff;
  margin-left: 10px;
}
.output {
  margin-top: 30px;
  display: none;
}
#utmResult {
  width: 100%;
  height: 100px;
  padding: 10px;
  margin-top: 10px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  resize: none;
  font-size: 14px;
}
#copyBtn {
  background: #10b981;
  color: #fff;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  margin-top: 10px;
  cursor: pointer;
}