body {
  font-family: 'Inter', sans-serif;
  background: #0d0d0d;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: #1a1a1a;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(0,0,0,0.4);
  width: 400px;
  text-align: center;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: #00bfff;
}

.converter select,
.converter input {
  width: 100%;
  margin: 10px 0;
  padding-left: 10px;
  padding-top: 10px;
  padding-left: -0%;
  padding-bottom: 10px;
  border-radius: 8px;
  border: none;
  outline: none;    
  background: #2a2a2a;
  color: #fff;
  font-size: 1rem;
}

button {
  width: 100%;
  padding: 12px;
  background: #00bfff;
  color: #fff;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 10px;
  transition:  0.2s;
}

button:hover {
  background: #0095cc;
}

.result {
  margin-top: 15px;
  background: #222;
  padding: 10px;
  border-radius: 8px;
}

.regional {
  margin-top: 25px;
  background: #222;
  padding: 15px;
  border-radius: 10px;
}