@import url('https://fonts.googleapis.com/css2?family=Nova+Square&display=swap');

html {
  box-sizing: border-box;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

body {
  font-family: 'Nova Square', sans-serif;
  margin: 0;
  padding: 0;
  background: #aaa;
}

h1 {
  text-align: center;
  font-size: 2.5rem;
}

.wrapper {
  width: 350px;
  background-color: #000000;
  color: #030303;
  margin: 5rem auto;
  border-radius: 20px;
  /* padding: 1px; */
  padding-bottom: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.9);
}

.calc-btn-table {
  width: 90%;
  margin: 0 auto;
  border-spacing: 6px;
}

#output {
  text-align: right;
  font-family: 'Nova Square', sans-serif;
  padding: 15px 8px;
  font-size: calc(2.8em - 0.5vw);
  font-weight: bold;
  border-radius: 10px;
  background: #aaa;
  box-shadow: inset 5px 5px 5px rgba(0, 0, 0, 0.7);
  width: 100%;
  margin: 20px auto;
  border: none;
  outline: none;
}

#output::placeholder {
  color: #030303;
}

.calc-btn-table td {
  text-align: center;
  padding: 6px;
}

.calc-button {
  background-color: #aaa;
  color: #030303;
  border: none;
  font-size: 20px;
  font-family: 'Nova Square', sans-serif;
  height: 55px;
  width: 55px;
  border-radius: 40px;
  font-weight: bold;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.9);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  /* transform: translateY(3px); */
}

.calc-button:active {
  transform: translateY(3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

.calc-button:hover {
  background-color: #fff;
  color: #030303;
}

#equalsButton {
  background-color: #f2830d;
}

/* .operation-button:hover {
  background-color: #dfb07e;
} */

/* #clearButton:hover {
  background-color: #dfb07e;
} */

#equalsButton:hover {
  background-color: #f0b06c;
}