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

#about-pageP{
    width: 100%;
    font-size: 2rem;
    text-align: center;
}

#about-pageH1{
    width: 100%;
    font-size: 3rem;
    text-align: center;
}

#login-btn{
    font-size: 2rem;
    border-radius: 10px;
    border: none;
    background-color: hsl(0, 0%, 0%);
    color: hsl(226, 100%, 94%);
    cursor: pointer;
    padding: 0;
}

#login-btn:hover {
    background-color: hsl(0, 0%, 20%);
}

#login-btn:active {
    background-color: hsl(0, 0%, 40%);
}

#login-body {
 margin: 0;
 display: flex;
 justify-content: center;
 align-items: center;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: hsl(230, 100%, 28%);
  color: hsl(226, 100%, 94%);

  font-family: "Roboto", sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
}

#myH3 {
  width: 100%;
  text-align: center;
  font-size: 3rem;
}

#myP {
  width: 100%;
  text-align: center;
  font-size: 2rem;
}

ul {
  display: flex;
  list-style-type: none;
  gap: 20px;
}

a {
  text-decoration: none;
  color: black;
  font-weight: bold;
}

.nav-bar {
  width: 100%;
  padding: 0px;
  text-align: left;
  font-size: 1.5rem;
  background-color: hsl(0, 0%, 45%);
}

#myH1 {
  width: 100%;
  text-align: center;
  font-size: 5rem;
}


#calculator {
  background-color: hsl(0, 0%, 15%);
  border-radius: 15px;
  max-width: 500px;
  overflow: hidden;
  color: white;
}

#display {
  width: 100%;
  padding: 20px;
  font-size: 5rem;
  text-align: left;
  border: none;
  background-color: hsl(0, 0%, 20%);
  color: white;
}

#keys {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 25px;
  color: white;
}

button {
  width: 100px;
  height: 100px;
  border-radius: 50px;
  border: none;
  Background-color: hsl(0, 0%, 30%);
  color: white;
  font-size: 3rem;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background-color: hsl(0, 0%, 40%);
}

button:active {
  background-color: hsl(0, 0%, 50%);
}

.operator-btn {
  background-color: hsl(27, 87%, 55%);
}

.operator-btn:hover {
  background-color: hsl(39, 100%, 65%);
}

.operator-btn:active {
  background-color: hsl(39, 100%, 75%);
}