@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@200..700&display=swap');
*{
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
html{
  height: 100%;
  width: 100%;
}

body{
  font-family: 'Oswald', sans-serif;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(45deg, black, rgb(44, 41, 57));
}

.container{
  border: 1px solid gray;
  padding: 20px;
  border-radius: 16px;
  background: transparent;
  box-shadow: 0 0 .5rem gray;
}
.row{
  margin: 8px 0;
}

button{
  width: 66px;
  padding: 20px;
  margin: 0 3px;
  font-size: 20px;
  text-align: center;
  border: none;
  background: transparent;
  color: white;
  border-radius: 9px;
  cursor: pointer;
  box-shadow: -8px -8px 15px rgb(61, 60, 60);
}
.button-equal{
  background-color: orange;
}
.operator{
  color: rgb(119, 246, 119);
}
.input{
  width: 300px;
  font-size: 20px;
  padding: 10px 15px;
  border: none;
  font-size: 40px;
  border-radius: 5px;
  background: transparent;
  color: white;
  text-align: right;
  cursor: pointer;
}