body{
    background-image: url(img/fondo_comics.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}
section{
  
}
@import url('https://fonts.googleapis.com/css2?family=Nunito&display=swap');
nav{
    font-size: 20px;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body{
    font-family: 'Nunito', sans-serif;
    font-weight: bolder;
}




/*btn Tres*/

.btn-3{
    color: white;
      
    box-shadow: 0 0 0 0 rgba(143, 64, 248, 0.5), 0 0 0 0 rgba(39, 200, 255, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;

    overflow: hidden;
}
.btn {
    text-decoration: none;
    
    font-size: 1.5rem;
    position: relative;

}

.btn-3::after {
    content: "";
    width: 165px;
    height: 140px;
    position: absolute;
    top: -46px;
    left: -20px;
    background: #fbff13;
    background-image: linear-gradient(-225deg, rgb(150, 170, 35) 0%, #7a6610 29%, #FF1361 67%, #FFF800 100%);
    z-index: -1;
    transition: transform 0.5s ease;
}

.btn-3:hover {
    transform: translate(0, -6px);
    box-shadow: 10px -10px 25px 0 rgba(253, 249, 16, 0.5), -10px 10px 25px 0 rgba(255, 30, 0, 0.794);
}

.btn-3:hover::after {
    transform: rotate(150deg);
}

<--😂🤣
.contenedor {
    width: 90%;
    max-width: 900px;
    height: auto;
    margin-right: auto;
    margin-left: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tarjeta {
    margin-top: 30px;
    width: 100%;
    max-width: 550px;
    position: relative;
    color: #FFF;
    z-index: 2;
    transition: .3s ease all;
    transform: rotateY(0deg);
    transform-style: preserve-3d;
    cursor: pointer;
}

.tarjeta.active {
    transform: rotateY(180deg);
}

.tarjeta-frente {
    background-image: url("img/fondo.jpg");
    background-size: cover;
    min-height: 330px;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 0 rgba(90, 116, 148, 0.3);
}

.tarjeta-dorso {
    background-image: url("img/fondo.jpg");
    background-size: cover;
    min-height: 330px;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 0 rgba(90, 116, 148, 0.3);
    position: absolute;
    top: 0px;
    transform: rotateY(180deg);
    backface-visibility: hidden;
}

.logoBanco {
    text-align: right;
    min-height: 50px;
}

.logoBanco img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    max-width: 80px;
}

.chip {
    width: 60px;
    display: block;
}

#numeroTarjeta {
    font-family: 'Orbitron', sans-serif;
    display: block;
    margin-top: 25px;
    font-size: 25px;
}

.flexbox {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

.grupo .nombre,
.grupo .vto {
    font-size: 22px;
    text-transform: uppercase;
}

.grupo .label {
    margin-bottom: 10px;
    color: darkgrey;
}

.barraMagnetica {
    background-color: #000;
    width: 100%;
    height: 60px;
    position: absolute;
    left: 0;
}

.firmaCVV {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.firma {
    margin-top: 70px;
    width: 70%;
}

#firma {
    height: 40px;
    background: repeating-linear-gradient(skyblue 0, skyblue 5px, rgb(224, 241, 184) 5px, rgb(224, 241, 184) 10px);
    font-size: 28px;
    color: #000;
    font-family: 'Liu Jian Mao Cao', cursive;
    text-transform: capitalize;
}

.cvv {
    width: 20%;
    margin-top: 70px;
}

#codigoV {
    height: 40px;
    background-color: whitesmoke;
    font-size: 25px;
    color: #000;
    text-align: center;
    line-height: 40px;
}

.leyenda {
    margin-top: 20px;
}

.boton {
    width: 100%;
    text-align: center;
}

.abrirForm {
    background-color: transparent;
    border: transparent;
    background-color: royalblue;
    color: #FFF;
    width: 50px;
    height: 50px;
    border-radius: 100%;
    box-shadow: -5px 4px 8px rgba(24, 56, 182, 0.4);
    z-index: 3;
    font-size: 25px;
    position: relative;
    margin-top: -25px;
    cursor: pointer;
    padding: 5px;
    transition: all .2s ease;
}

.abrirForm:hover {
    background: #1850b1;
}

.abrirForm:focus {
    outline: none;
}

.abrirForm.active {
    transform: rotate(-180deg);
} 

.formulario {
    z-index: 1;
    background-color: #FFF;
  
    display: flex;
    flex-direction: column;
    position: relative;
    margin-top: -150px;
    width: 100%;
    height: auto;
    padding: 40px;
    padding-top: 185px;
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path .3s ease-out;
}  

.formulario.active {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.grupo-vencimiento label,
.formulario .grupo label {
    display: block;
    color: #7d8994;
    font-size: 16px;
    margin-bottom: 5px;
    margin-top: 8px;
}

.form_input {
    margin-bottom: 20px;
    text-transform: uppercase;
    border: #CED6E0;
    font-size: 18px;
    padding: 8px 15px;
    border-radius: 5px;
    width: 100%;
}

.flexbox-vencimiento {
    display: flex;
    justify-content: space-between;
}

.grupo-vencimiento {
    width: 100%;
}

.grupo-vencimiento .grupoVto {
    display: flex;
    justify-content: space-between;
}

.grupo-vencimiento select {
    width: 100%;
    margin-right: 25px;
    margin-bottom: 20px;
    border:  #CED6E0;
    font-size: 18px;
    padding: 8px 15px;
    border-radius: 5px;
    transition: .3s ease all;
    -webkit-appearance: none;
}

.grupo-select {
    width: 100%;
    margin-right: 20px;
    position: relative;
}

.grupo-select i {
    position: absolute;
    color: #CED6E0;
    transition: .3s ease all;
    top: 15px;
    right: 15px;
}

.form_input:hover,
.grupo-vencimiento select:hover {
    border:  #93BDED;
}

.grupo-select i:hover {
    color: #93bfed;
}

.form_input:focus,
.grupo-vencimiento select:focus {
    outline: rgb(4, 4, 4);
    box-shadow: 1px 7px 10px -5px rgba(90, 116, 148, 0.3);
}

.btn_confirmar {
    display: block;
    width: 70%;
    margin-right: auto;
    margin-left: auto;
    margin-top: 25px;
    font-size: 18px;
    padding: 15px 15px;

    background-color: steelblue;
    color: white;
    border: none;
    box-shadow: 2px 2px 10px 0px rgba(0,85,212,0.4);
    cursor: pointer;
}

.btn_confirmar:hover {
    background: #1850b1;
}
.modal{
    width: -700px;
height: 700px;
}
footer{
  
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    background-color: #313030be;
    
}