body {
    background-color: antiquewhite;
 }

 .titulo3 {
    margin-bottom: 20px;
    position: relative;
 }

h3 {
    color: beige;
    cursor: pointer;
    padding: 10px 15px;
    background-color: rgb(241, 109, 131);
    border-radius: 5px;
    transition: background-color 0.3s ease;
} 

h3:hover {
    background-color: plum;
}

.texto-oculto {
    display:none;
    position: absolute;
    background-color: violet;
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.9em;
    white-space: nowrap;
    z-index: 10;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,2);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.titulo3 h3:hover .texto-oculto {
    display: block;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.cartas {
    width: 300px;
    height: 400px;
    perspective: 1000px;
}

.ineer {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.cartas:hover .ineer {
    transform: rotateY(180deg);
}

.frente,
.carta-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.frente img,
.carta-back img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carta-back {
    transform: rotateY(180deg);
}