body {
  margin: 4% auto;
  font-family: "Source Sans Pro", sans-serif;
  letter-spacing: 5px;
  font-size: 1.8rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.calculator {
  max-width: 350px;
  padding: 20px;
  box-shadow: 14px 16px 40px 10px rgba(0, 0, 0, 0.3);
  border-radius: 5px;
  border: 1px solid #b1b0b0;
  background: rgb(255, 255, 225);
}

.input {
  height: 60px;
  text-align: right;
  padding: 8px;
  font-size: 2.5rem;
  overflow-x: auto;
  background: white;
  border: 1px solid #bbb;
  box-shadow: inset 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.buttons {
  display: flex;
  flex-direction: column;
}

.operators {
  display: flex;
  gap: 8px;
}

.operators div {
  border: 1px solid #bbb;
  border-radius: 1px;
  flex: 1;
  text-align: center;
  padding: 10px 6px;
  margin: 20px 4px 10px 0;
  cursor: pointer;
  background-color: #ddd;
}

.operators div:hover {
  box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
  border-color: #aaa;
}

.operators div:active {
  font-weight: bold;
}

.numbers {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.numbers div {
  border: 1px solid #ddd;
  border-radius: 1px;
  width: 80px;
  flex: 1;
  text-align: center;
  padding: 10px;
  margin: 10px 4px 10px 0;
  cursor: pointer;
  background-color: #f9f9f9;
  transition: all 0.2s ease-in-out;
}

.numbers div:hover {
  background-color: #f1f1f1;
  box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
  border-color: #bbb;
}

.numbers div:active {
  font-weight: bold;
}

#clear {
  background: rgb(245, 207, 142);
}

.equal {
  background-color: #7292c5;
  flex: 1;
  text-align: center;
  padding: 34px 10px;
  margin: 10px 0;
  cursor: pointer;
  color: #fff;
  transition: all 0.2s ease-in-out;
  border-radius: 0 0 12px 12px;
  box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
}

.equal:hover {
  background: #307cf9;
}

.equal:active {
  box-shadow: 0px 5px 10px 0px #7292c5;
}