@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

*,
*::before,
*::after {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Roboto";
  font-weight: normal;
  color: wheat;
  font-family: 10px;
}

body {
  height: 100vh;
}

nav {
  padding: 10px;
  text-align: center;
  font-weight: bold;
  color: #FFFFFF;
  text-shadow: 0 0 5px #FFF, 0 0 10px #FFF, 0 0 15px #FFF, 0 0 20px #0E2148, 0 0 30px #0E2148, 0 0 40px #0E2148, 0 0 55px #0E2148, 0 0 75px #0E2148;
}

nav p {
  font-size: 4rem;
}


.calculator-container {
  display: grid;
  justify-content: center;
  align-content: center;
  height: 100vh;
  grid-template-columns: repeat(4, 80px);
  grid-template-rows: minmax(120px, auto) repeat(5, 80px);
  gap: 2px;
  width: max-content;
  height: max-content;
  margin: 0 auto;
  margin-top: 10vh;
  background-color: #0E2148;
  box-shadow: 0px 0px 87px 15px rgba(0, 0, 0, 0.79);
  -webkit-box-shadow: 0px 0px 87px 15px rgba(0, 0, 0, 0.79);
  -moz-box-shadow: 0px 0px 87px 15px rgba(0, 0, 0, 0.79);
}

.calculator-container>button {
  cursor: pointer;
  font-size: 2rem;
  background-color: #483AA0;
  border: none;
  outline: none;
  color: black;
}

.calculator-container>button:hover {
  background-color: #7965C1;
}

.calculator-container>button:active {
  background-color: #E3D095;
}

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

.output {
  grid-column: 1 / -1;
  font-size: 1.5rem;
  display: flex;
  flex-direction: column;
  background-color: #0E2148;
  align-items: flex-end;
  justify-content: space-between;
  padding: 10px;
  word-wrap: break-word;
  word-break: break-all;
}

.output .previous-operand {
  color: #E3D095;
  font-size: 1rem;
}

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

footer {
  position: absolute;
  /* bottom: 0; */
  margin-top: 70px;
  padding: 50px;
  text-align: center;
  width: 100vw;
}