body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
  background: radial-gradient(circle, rgba(238,174,202,1) 0%, rgba(177,191,28,1) 100%);
}

.appcalcu {
  width: 300px;
  background-color: #5e5c59;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  text-align: center;
}

input[type="textfield"] {
  height: 90px;
  width: 91%;
  font-size: 40px;
  margin-bottom: 10px;
  border-radius: 15px;
  text-align: right;
  padding: 15px;
  border: 0;
  outline: none;
  cursor: default;
}

input[type="button"], input[type="reset"] {
  width: 60px;
  height: 50px;
  font-size: 18px;
  margin: 5px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  background-color: #9eb952;
  color: #fff;
}

input[type="reset"],
input[type="button"][value="←"],
input[type="button"][value="="],
input[type="button"][value="C"],
input[type="button"][value="0"] {
  width: 97px;
  background-color: #adafaf;
}

input[type="button"][value="C"] {
  background-color: #ff8080;
}

input[type="button"][value="+"],
input[type="button"][value="-"],
input[type="button"][value="x"],
input[type="button"][value="÷"] {
  background-color: #ffcc66;
}

input[type="button"]:hover,
input[type="reset"]:hover {
  background-color: #d6d6d6;
}