* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "poppins", sans-serif;
}

body {
  background: #121212;
}

.container {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.calculator {
  outline: 5px solid #010101;
  border: 2px solid #252525;
  padding: 20px;
  border-radius: 10px;
  background: #010101;
  box-shadow: rgba(50, 50, 93, 0.25) 0px 50px 100px -20px,
    rgba(0, 0, 0, 0.3) 0px 30px 60px -30px,
    rgba(10, 37, 64, 0.35) 0px -2px 6px 0px inset;
}

.calculator form input {
  border: 0;
  outline: 0;
  width: 80px;
  height: 60px;
  border-radius: 10px;
  background: #2a2a2c;
  color: #fff;
  cursor: pointer;
  font-size: 30px;
  margin: 10px;
  /* box-shadow: 0 0 10px rgba(248, 248, 248, 0.6); */
  box-shadow: rgba(50, 50, 93, 0.25) 0px 50px 100px -20px,
    rgba(0, 0, 0, 0.3) 0px 30px 60px -30px,
    rgba(10, 37, 64, 0.35) 0px -2px 6px 0px inset;
}

form .display {
  display: flex;
  justify-content: flex-end;
  margin: 20px 0;
}

form .display input {
  flex: 1;
  text-align: right;
  font-size: 55px;
  box-shadow: none;
  background-color: transparent;
}

#equal {
  width: 183px;
}

.calculator form .top-btn{
    background-color:#a5a5a9;
}

.calculator form .right-btn{
    background-color:#f7912f;
}