.seccion-cubo {
    margin: 4rem 0;
    text-align: center;

    perspective: 1000px;

}


.escena-3d {
    width: 250px;
    height: 250px;

    margin: 3rem auto;
    perspective: 1000px;
}


.cubo {

    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    animation: rotarY 8s infinite linear;


}



.cara {
    position: absolute;
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);


    color: white;
    font-weight: 700;
    font-size: 1.3rem;
    display: flex;


    flex-direction: column;
    justify-content: center;

    align-items: center;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border: 2px solid rgba(255,255,255,0.3);
}



.frente  { transform: rotateY(  0deg) translateZ(125px); }
.atras   { transform: rotateY(180deg) translateZ(125px); }
.derecha { transform: rotateY( 90deg) translateZ(125px); }


.izquierda { transform: rotateY(-90deg) translateZ(125px); }
.arriba  { transform: rotateX( 90deg) translateZ(125px); }
.abajo   { transform: rotateX(-90deg) translateZ(125px); }



@keyframes rotarY {
    0% { transform: rotateY(0deg); }
    100% { transform: rotateY(360deg); }
}

.codigo-evento {

    background: #2c3e50;
    color: #f1c40f;

    padding: 2rem;

    border-radius: 15px;

    font-family: monospace;

    max-width: 600px;

    margin: 2rem auto;


    text-align: left;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.plato-rebote {
    background: linear-gradient(45deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);

    color: #2c3e50;

    width: 220px;
    padding: 2rem;

    margin: 2rem auto;

    border-radius: 20px;

    text-align: center;

    font-size: 1.3rem;


    font-weight: 700;
    cursor: pointer;
    animation: rebote 2s infinite;

    box-shadow: 0 8px 25px rgba(255,154,158,0.4);
}

@keyframes rebote {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }

    40% { transform: translateY(-20px); }

    60% { transform: translateY(-10px); }
}

section {

    margin: 80px 0;

    text-align: center;
}

section h2 {
    color: #2c3e50;

    margin-bottom: 25px;
    
}


@media (max-width: 768px) {
    .escena-3d {
        width: 200px;
        height: 200px;
    }
    
    .cara {
        width: 200px;
        height: 200px;
        font-size: 21px;
    }
    


    .frente  { transform: rotateY(  0deg) translateZ(100px); }
    .atras   { transform: rotateY(180deg) translateZ(100px); }

    .derecha { transform: rotateY( 90deg) translateZ(100px); }

    .izquierda { transform: rotateY(-90deg) translateZ(100px); }

    .arriba  { transform: rotateX( 90deg) translateZ(100px); }

    .abajo   { transform: rotateX(-90deg) translateZ(100px); }

}