body {
  font-family: 'Segoe UI', sans-serif;
  background: #f0f4f8;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  width: 350px;
  text-align: center;
}

h1 {
  margin-bottom: 1.5rem;
  color: #333;
}

.converter input,
.converter select,
.converter button {
  margin: 0.5rem 0;
  padding: 0.6rem;
  width: 100%;
  border-radius: 8px;
  border: 1px solid #ccc;
}

.selectors {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.selectors select {
  width: 45%;
}

button {
  background-color: #007bff;
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background-color: #0056b3;
}

#result {
  margin-top: 1rem;
  font-size: 1.2rem;
  color: #007bff;
}