*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, sans-serif;
}

.display {
  width: 100%;
  height: 50px;
  font-size: 24px;
  padding: 12px;

  display: flex;
  justify-content: flex-end;

  color: white;
  border-radius: 4px;
  background-color: rgb(60, 80, 100);
}

.calculator {
  padding: 24px;

  width: 300px;
  height: 400px;

  gap: 32px;
  display: flex;
  flex-direction: column;

  border-radius: 8px;
  border: 1px solid black;
  background-color: #1f1e1e;
}

.row {
  display: flex;
  justify-content: space-between;
}

.button {
  padding: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: 24px;

  display: flex;
  align-items: center;
  justify-content: center;

  color: #ffffff;
  background-color: #ff043a;

  border-radius: 4px;
  border: 2px solid rgb(255, 60, 60);
}