.converter {
  background: #2b2b2b;
  padding: 25px;
  border-radius: 12px;
  width: 95%;
  max-width: 600px;
  color: white;
  box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

.converter h2 {
  text-align: center;
  margin-bottom: 20px;
}

.converter .row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.converter .input-group {
  flex: 1;
  min-width: 120px;
  display: flex;
  flex-direction: column;
}

.converter label {
  font-size: 14px;
  margin-bottom: 5px;
}

.converter input, .converter select {
  padding: 10px;
  border-radius: 6px;
  border: none;
  font-size: 15px;
}

.converter input {
  background: #3a3a3a;
  color: white;
}

.converter select {
  background: #444;
  color: white;
}

.converter .equals {
  font-size: 22px;
  padding: 10px;
}

@media(max-width: 700px){
  .converter .row {
    flex-direction: column;
  }
 .converter  .equals {
    display: none;
  }
}