*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

p{
    font-family: roboto-regular;
}

html {
    scroll-behavior: smooth; /* Ajusta según tus necesidades */
}

img{
    max-width: 100%;
    height: 100%;
    font-family: roboto-regular ;
}

main{
    margin-top: 11%;
}

.logo_navbar{
    max-width: 100%;
    width: 100%;
}

a{
    list-style: none;
    color: black;
    text-decoration: none;
    font-family: roboto-regular;
    font-weight: 600;
    font-size: 20px;
}

.contenedorTablas{
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 50px;
    margin-top: 50px;
    justify-content: center;
    align-items: center;
}

.tituloExamenes{
    text-align: center;
    font-size: 30px;
    font-weight: 500;
}

.contenedorImgExamenes{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    border-radius: 10px;
}
.contenedoresImgExamenes{
    box-shadow: 5px 5px 20px 0px black;
    background-color: #f7efea;
    border-radius: 10px;
    width: 40%;
    max-width: 40%;
    padding: 20px;
    height: 100%;
}
.imgExamenes{
    height: 100%;
    border-radius: 10px;
}

.whatsapp_float {
      position: fixed;
      width: 60px;
      height: 60px;
      bottom: 40px;
      right: 40px;
      background-color: #25d366;
      color: #fff;
      border-radius: 50px;
      text-align: center;
      font-size: 30px;
      box-shadow: 2px 2px 3px #999;
      z-index: 100;
    }
    .whatsapp-icon {
      margin-top: 16px;
    }

    /* for mobile */
    @media screen and (max-width: 767px){
      .whatsapp-icon {
        margin-top: 10px;
      }
      .whatsapp_float {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 10px;
        font-size: 22px;
      }
    }

main{
    margin-bottom: 150px;
}

.seccionExamenes{
    display: grid;
    place-items: center;
    grid-template-columns: repeat(4, 0.5fr);
    column-gap: 20px;
    background-color: #149968;
    padding: 5% 20px;
    margin-top: 50px;
    width: 100%;
    background-size: cover;
}

.columnasExamenes{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 50px;
    width: 100%;
    height: 600px;
}

.contenedoresExamenes{
    background-color: aquamarine;
    background-size: cover;
    height: 50%;
    padding: 5%;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    position: relative;
}

.botonVerMas{
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 10px;
    position: absolute;
    top: 10;
    right: 10;
    background-color: aquamarine;
    border: none;
    font-size: 40px;
    color: black;
    font-weight: bold;
}

.card {
    background-size: cover;
    height: 70%;
    width: 95%;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.5s;
    perspective: 1000px;
    background-color: #149968;
}

.card-face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0);
    border-radius: 10px;
}

.front {
    background-color: #fff;
}

.back {
    background-color: #d65f5f;
    color: #fff;
    transform: rotateY(180deg);
    border: 2px solid white;
    text-align: center;
    padding: 0 10px;
}

.back p{
    margin-bottom: 0;
    margin-top: 3rem;
}

.logoExamen{
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

.rotateButton{
    position: absolute;
    top: 0;
    right: 0;
    margin: 20px 20px 0 0;
    width: 10%;
    height: 30px;
}

.rotateButtonBack{
    position: absolute;
    top: 0;
    left: 0;
    margin: 10px 10px 0 0;
    width: 10%;
    height: 30px;
}

.card.is-flipped {
    transform: rotateY(180deg);
    perspective: 1000px;
}

/* Agregar perspectiva a los padres contenedores para un efecto 3D más realista */
.card-container {
    perspective: 1000px;
}

/* Efecto de "hover" para resaltar la interactividad de la tarjeta */
.card:hover {
    cursor: pointer;
    box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
}

button {
    padding: 10px 20px;
    background-color: #4caf50;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    outline: none;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #45a049;
}


.miBoton {
    display: inline-block;
    background-color: blue;
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

.miBoton:hover {
    opacity: 0.8;
}


.imagenFlecha{
    width: 100%;
    height: 100%;
}

.infoAperturaExamenes{
    color: black;
    font-size: 18px;
    text-align: center;
    max-width: 80%;
}

.miBoton{
    padding: 10px 20px;
    background-color: #5ebe61;
}

.botonRealizarTestNivelIngles{
    padding: 15px 20px;
    background-color: #149968;
    border-radius: 10px;
    background-size: cover;
    text-align: center;
    /*font-family: roboto-regular;*/
    font-weight: 600;
}

.botonRealizarTestNivelIngles:hover{
   color: black;
   opacity: 0.8;
}

main{
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.seccionBotonTest{
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 40px;
    justify-content: center;
    align-items: center;
    margin-top: 70px;
}


@media screen and (max-width: 990px) {
    
    .contenedorTablas{
        padding-top: 80px;
    }
    
    .seccionExamenes{
        grid-template-columns: repeat(1, 1fr);
        column-gap: 20px;
        row-gap: 30px;
        padding: 80px 0;
    }
    
    .card {
        width: 45%;
    }

    .tituloExamenes{
        max-width: 80%;
    }
    
}

@media screen and (max-width: 600px) {
    .card {
        width: 70%;
    }
}

@media screen and (min-width: 1500px) {
    
    .card {
        width: 80%;
    }
    
}