:root {
--text-color: #DBE4EF;
--card-front-color: #144480;
--card-back-color: #f4f400;
}

body {
background: url('bg-desktop.webp');
font-family: Bai Jamjuree;

} 

#container {
display:flex ;
flex-wrap: wrap;
justify-content: space-between;
padding: 4rem;
gap: 3rem;
}
.cartao {
margin: 1rem 1rem;
background-color: rgb(90, 171, 226);
height: 20rem;
flex-grow: 1;
flex-basis: calc(33% -6rem);
}

.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 {
text-align: center;
height: 100%;
background-color: var(--card-front-color);
transform-style: preserve-3d;
transition: transform 300ms ease-in-out;
}
.cartao__conteudo p {
margin-top: 1rem;
padding: 2rem;
margin-top: 4rem;
font-size:1.4vw;
}

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

.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: rdba(0, 244, 191, 0.2);
     border: 4px solid var(--card-back-color);
}

footer {
background-color: black;
color: white;
bottom:0;
position:fixed;
width:100%;
height:2rem;
}
footer p{
    text-align: center;
    font-size: 0.6rem;
    margin-top: 0.5rem;
}

@media (max-width: 560px) {

    body {
        background: url('assets/bg-mobile.webp');
    }
    .cartao {
        flex: 1 0 calc(100% - 1rem);
    }

    .cartao__conteudo h3 {
    font-size: 3vw;
}

.cartao__conteudo p {
    font-size: 3.8vw;
}

}