* {
    margin: 0;
    padding: 0;
}

.cabecalho {
    padding: 15px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color:rgb(71, 71, 131);
}

.cartao {
    width: 268px;
    height: 200px;
}

.cartao-imagem {
    width: 100%;
}

body{
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color:rgba(174, 175, 176, 0.985);
}

main{
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cabecalho-link {
    color:white;
    text-decoration: none;
}

h1 {
    color: #fff;
    font-size: 24px;
}

.footer {
    background-color: rgb(71, 71, 131);
     padding: 15px 25px;
     color: #fff;
}

.cartao-interno { 
  position: relative; 
  transition: transform 0.8s; 
  transform-style: preserve-3d; 
}

.cartao:hover .cartao-interno { 
  transform: rotateY(180deg); 
}

.cartao-frente, 
.cartao-verso { 
  position: absolute; 
  border-radius: 12px; 
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15); 
  backface-visibility: hidden; 
}

.cartao-verso { 
  transform: rotateY(180deg); 
}

section {
    display: flex;
    gap: 16px;
}