body {
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  display: flex;
  justify-content: center;
  padding: 40px 20px;
}

.converter-container {
  background: #fff;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 0 12px rgba(0,0,0,0.08);
  max-width: 450px;
  width: 100%;
  text-align: center;
}

h1 {
  font-size: 22px;
  margin-bottom: 20px;
  color: #222;
}

.input-section {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

input, select, button {
  padding: 10px;
  font-size: 16px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

button {
  cursor: pointer;
  background: #007bff;
  color: #fff;
  border: none;
  transition: background 0.2s ease;
}

button:hover {
  background: #0056b3;
}

.result {
  font-size: 18px;
  font-weight: bold;
  color: #333;
}