body {
  margin: 0;
  font-family: Arial;
  background: linear-gradient(135deg, #0f2027, #2c5364);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.card {
  background: white;
  padding: 25px;
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  text-align: center;
}

textarea {
  width: 100%;
  height: 120px;
  margin-top: 15px;
  padding: 10px;
  font-size: 16px;
}

button {
  margin-top: 15px;
  padding: 10px 20px;
  font-size: 16px;
  background: #2c5364;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

#result {
  margin-top: 20px;
  font-weight: bold;
  color: green;
}