@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@500&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container {
  width: 100vw;
  height: 100vh;
  background-color: rgb(204, 204, 204);
  display: flex;
  justify-content: center;
  align-items: center;
}

.calculator {
  width: 20%;
  height: calc(100%-10px);
  background-color: black;
  border-radius: 13px;
  box-shadow: 3px 3px 10px black;
  border: 2px solid white;
  padding: 2px;
}
.headline {
  text-align: center;
  color: white;
  font-family: algerian;
  text-shadow: 0 10px 10px gray;
  padding: 5px;
}
.textArea {
  margin: 8px;
  padding: 4px;
  height: 20%;
}

#inp {
  width: 100%;
  height: 100%;
  font-size: 20px;
  text-indent: 10px;
  padding: 13px;
  font-family: "Roboto", sans-serif;
  outline: none;
  font-weight: bold;
  color: white;
  background-color: transparent;
  border: 1px solid white;
  border-radius: 10px;
  letter-spacing: 2px;
  cursor: default;
}

.controls {
  /* display: grid;
  grid-template-rows: repeat(4, 1fr);
  grid-template-columns: repeat(4, 1fr);
  justify-items: center;
  padding: 4px;
  row-gap: 10px; */
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 6px;
}

.btn-style {
  width: 60px;
  height: 60px;
  font-size: 20px;
  border-radius: 50%;
  background-color: white;
  cursor: pointer;
  transition: 0.3s;
  margin: 5px;
  border: none;
}
.btn-style:hover {
  transform: scale3d(1.2, 1.2, 1.2);
}
.btn-style:active {
  background-color: black;
  color: white;
  border: 1px solid white;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

@media (max-width: 1160px) {
  .calculator {
    width: 60%;
    margin: 8px;
  }
  .btn-style:hover {
    transform: none;
  }
}
@media (max-width: 431px) {
  .calculator {
    width: 100%;
    margin: 8px;
  }
  .btn-style:hover {
    transform: none;
  }
}