html, body, form {
    /*background: url(../Imagen/fondopantalla.jpg) no-repeat center center fixed;*/
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    height: 100% !important;
    margin: 0 !important;
}


.container {
    position: relative;
    width: 100%;
    height: 100vh; /* o el alto que necesites */
    background-image: url('../Imagen/fondopantalla.jpg');
    background-size: cover;
    background-position: center;
    overflow: hidden;

    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
    flex-wrap: wrap;
}

    .container::before,
    .container::after {
        content: "";
        position: absolute;
        left: 0;
        width: 100%;
        height: 40px; /* altura de la franja */
        background-color: white;
        z-index: 2;
    }

    .container::before {
        top: 0;
    }

    .container::after {
        bottom: 0;
    }

/*.container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}*/

.centered-div {
    width: 60%;
}

.box-white {
    width: 100%;
    background: #fff;
}

.box-transparent {
    background-color: rgba(0,0,0,0.5);
}

.box-pad {
    padding: 10px;
}

.card-left {
    height: 330px;
    border-radius: 25px 0 0 25px;
    border: 1px solid #3212ff;
}

.card-right {
    height: 330px;
    border-radius: 0 25px 25px 0;
    border: 1px solid #3212ff;
}

.social_icon span {
    font-size: 60px;
    margin-left: 10px;
    color: #12acff;
}

    .social_icon span:hover {
        color: white;
        cursor: pointer;
    }

.card-header h3 {
    color: white;
    border-bottom: 1px solid #3212ff;
}

.card-footer {
    border-top: 1px solid #3212ff;
}

.social_icon {
    position: absolute;
    right: 20px;
    top: -45px;
}

.input-group-addon {
    padding: 2px 11px;
    font-size: 22px;
}

.input-group {
    width: 100% !important;
}

    .input-group span {
        width: 50px;
        background-color: #12acff;
        color: black;
        border: 0 !important;
    }

input:focus {
    outline: 0 0 0 0 !important;
    box-shadow: 0 0 0 0 !important;
}

.logo {
    padding-top:35%;
    content:url("../Imagen/logo_app_v.png");
    width:90%;
    height:auto;
}

.login_btn {
    color: black;
    background-color: #12acff;
    width: 100px;
}

    .login_btn:hover {
        color: black;
        background-color: white;
    }

@media (max-width: 767px) {
    .card-left {
        height: 100%;
        border-radius: 25px 25px 0 0;
    }

    .card-right {
        height: 100%;
        border-radius: 0 0 25px 25px;
    }

    .logo {
        content: url("../Imagen/logo_app_v.png");
        padding-top: 0px !important;
        width: 60%;
        height: auto;
    }
}