@charset "UTG-8";

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

body {
  margin: 100px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 70vh;
  background: url(../imagens/bg.jpg) no-repeat center center / cover #f0f8ff;
}

#calculadora {
  font-family: "Poppins", sans-serif;
  border-radius: 20px;
  max-width: 400px;
  overflow: hidden;
  /* From https://css.glass */
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(3.5px);
  -webkit-backdrop-filter: blur(3.5px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

#display {
  width: 100%;
  padding: 20px;
  font-size: 4rem;
  text-align: left;
  border: none;
  background-color: hsl(0, 0%, 20%);
  color: white;
}

#teclas {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  justify-items: center;
  gap: 6px;
  padding: 20px;
}

button {
  width: 80px;
  height: 80px;
  border-radius: 50px;
  border: none;
  background-color: hsl(0, 0%, 30%);
  color: hsl(0, 0%, 100%);
  font-size: 2.5rem;
  font-weight: bold;
  cursor: pointer;
}

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

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

.operador-btn {
  background-color: hsl(35, 100%, 55%);
}

.operador-btn:hover {
  background-color: hsl(35, 100%, 65%);
}

.operador-btn:active {
  background-color: hsl(35, 100%, 75%);
}