.container {
  padding: 20px;
}

.section {
  background: #f0f0f0;
  border-radius: 8px;
  margin-bottom: 20px;
  padding: 10px;
  text-align: center;
}

.picker {
  font-size: 18px;
  color: #333;
}

.converter-box {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.input-group {
  display: flex;
  align-items: center;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.input-group input, .result-display {
  flex: 1;
  font-size: 24px;
  height: 40px;
  line-height: 40px;
}

.result-display {
    min-height: 40px; 
}

.unit-picker {
  margin-left: 10px;
  padding: 5px 10px;
  background: #eee;
  border-radius: 4px;
  font-size: 16px;
}

.separator {
  text-align: center;
  font-size: 30px;
  color: #999;
}