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

:root{
  --text-color:#ffffff;
  --card-front-color:#15AE68;
  --card-back-color:#09683d;
}
body {
  background: url(/assets/img/bg-desktop-green.webp);
  font-family: Gluten;
}

#container{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 3rem;
}

.cartao{
  margin: 1rem 1rem;
  height: 20rem;
  flex-grow: 1;
  flex-basis: calc(33% - 6rem);
}

.cartao__conteudo{
  background-color: var(--card-front-color);
  text-align: center;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 300ms ease-in-out;
}

.cartao__conteudo h3{
  color: var(--text-color);
  border: 1px solid var(--text-color);
  text-align: left;
  padding: 0.5rem;
  position: absolute;
  margin: 0.6rem;
  border-radius: 0.6rem;
  font-size: 1vw;
  backface-visibility: hidden;
}

.cartao__conteudo p{
  margin-top: 1rem;
  padding: 2rem;
  margin-top: 4rem;
}

.cartao__conteudo__pergunta p{
  color: var(--text-color);
  font-weight: 500;
  font-size: 1.4vw;
}

.cartao__conteudo__resposta p{
  color: var(--card-back-color);
  font-weight: 700;
}

.cartao.active .cartao__conteudo{
  transform: rotateY(180deg);   
}

.cartao__conteudo__pergunta, 
.cartao__conteudo__resposta{
  backface-visibility: hidden;
  position: absolute;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
}

.cartao__conteudo__resposta{
  transform: rotateY(180deg);
  background-color: rgba(0, 244, 191, 0.2);
  border: 4px solid var(--card-back-color);
}

footer{
  background-color: black;
  color: white;
  position: fixed;
  bottom: 0;
  width: 100%;
  height: 2rem;
}

footer p{
  text-align: center;
  font-size: 0.6rem;
  margin-top: 0.5rem;
}