body {
  margin: 0;
  padding: 0;
  background: #eeaeca;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans",
    "Helvetica Neue", sans-serif;
  background: radial-gradient(circle, rgba(238, 174, 202, 1) 0%, rgba(148, 187, 233, 1) 100%);
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(4, 100px);
  grid-template-rows: minmax(120px, auto) repeat(5, 100px);
  justify-content: center;
  align-content: center;
  min-height: 100vh;
}

.calculator-grid > button {
  cursor: pointer;
  border: 1px solid white;
  font-size: 2rem;
  outline: none;
  background-color: rgba(255, 255, 255, 0.75);
}

button:hover {
  background-color: white;
}

.span-two {
  grid-column: span 2;
}

.output {
  grid-column: 1 / -1;
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  flex-direction: column;
  padding: 10px;
  word-break: break-word;
  overflow-wrap: break-all;
}

.previous-operand {
  color: white;
  font-size: 1.5rem;
}

.current-operand {
  color: white;
  font-size: 1.5rem;
}