body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to right, #6a11cb, #2575fc);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.converter-container {
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  width: 400px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

h1 {
  color: #333;
  margin-bottom: 20px;
}

.input-group {
  margin-bottom: 15px;
  text-align: left;
}

label {
  display: block;
  margin-bottom: 5px;
  color: #555;
}

input, select {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

button {
  padding: 10px 20px;
  margin: 5px;
  font-size: 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: #6a11cb;
  color: white;
  transition: 0.3s;
}

button:hover {
  background: #2575fc;
}

#result {
  margin-top: 20px;
  color: #333;
}

.hidden {
  display: none;
}