/* Set the background color for the entire page */
body {
  background-color: #282b36;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.calculator {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 300px;
  height: 500px;
  border: 2px black solid;
  margin-top: 100px;
  border-radius: 10px;
  padding: 10px;
  background-color: #4527a0;
  box-shadow: 0px 10px 30px #4527a0;
  justify-content: space-evenly;
}

.history {
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  height: 30%;
  width: 100%;
  background-color: #282b36;
  border-radius: 10px;
  color: linen;
}

.history p {
  margin: 0;
}

.buttons {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  width: 100%;
  height: 50%;
  gap: 5px;
}

#op5 {
  grid-column: span 2;
}

.buttons button {
  border-radius: 10px;
  border: none;
  color: linen;
}

.blank {
  background-color: #4527a0;
}

.number {
  background-color: #4d4d4d;
}

.op {
  background-color: #313131;
}

#op5 {
  background-color: #a15300;
}

.display {
  display: flex;
  justify-content: center;
  width: 100%;
  height: 10%;
  background-color: #282b36;
  border-radius: 10px;
  color: linen;
}