:root {
    --clr-buap-blue: #00395e;
    --clr-buap-blue-light: #0067AB;
}

/*  =====> Background Log In*/

.gradient-background-buap {
    background: #00406B;
    background: linear-gradient(180deg, hsl(204, 97%, 26%) 12%, #002945 92%);
}

#gradient-background-login {
    position: absolute;
    opacity: .5;
    min-width: 100%;
    min-height: 100vh;
    background: rgb(0,57,94);
    background: linear-gradient(180deg, rgba(0,57,94,0) 0%, rgba(0,141,235,1) 100%);
}

#bg-logo-buap {
    position: relative;
    opacity: 0;
    left: 25%;
    z-index: 5;
    transition: opacity 4s;
}

#container-bg {
    z-index: 0;
    right: 0;
    transition: all 3s;
}

#photo-login {
    width: 100%;
    height: 100vh;
}

/*  ==========> Card Login*/
.card-login {
    width: 75%;
    height: auto;
    box-shadow: 0px 0px 20px .5px black;
    border-radius: 18px 18px 15px 15px;
    z-index: 15;
}

.card-login .card-title {
    margin-bottom: 0px;
    font-size: 2rem;
    font-weight: 700;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

.card-login .card-header {
    color: white;
    background-color: var(--clr-buap-blue-light);
    font-weight: bold;
    border-radius: 15px 15px 0px 0px;
}

#container-login input {
    text-align: center;
    font-weight: 400;
    opacity: .9;
    letter-spacing: 1px;
    font-size: 1.2rem;
}

#list-error ul {
    list-style: none;
    text-align: center;
    padding: 0px;
    margin: 0px;
}

.card-login input {
    border: 0px;
    background-color: rgba(0,0,0,.1);
    transition: all 300ms;
}

#container-login .row > .col {
    margin-bottom: 0rem;
}

#title-forgot-password a {
    color: var(--clr-buap-blue);
    transition: 300ms;
}

#title-forgot-password a:hover {
    color: var(--clr-buap-blue-light);
    text-shadow: 0px 0px 1px var(--clr-buap-blue-light);
}

/*  ==========> Btn - Login*/

.btn-hover {
    letter-spacing: 1px;
    color: white;
    background-color: var(--clr-buap-blue-light);
    transition: all .3s;
}

.btn-hover:hover {
    color: white;
}

/*  ===============> Border Input*/
.cont-input-login {
    position: relative;
}

.border-animate {
    position: absolute;
    right: 50%;
    height: 3px;
    width: 0%;
    background-color: var(--clr-buap-blue-light);
    transition: right 300ms, width 300ms;
}

.cont-input-login input:focus ~ .border-animate {
    width: 100%;
    right: 0;
}

/*  ================> MEDIA QUERY*/

@media (min-width: 768px) {
    .card-login {
        width: 50%;
    }

    .btn-hover {
        border: 2px solid var(--clr-buap-blue-light);
        background-color: transparent;
        color: var(--clr-buap-blue-light);
        transition: all .3s;
    }

    .btn-hover:hover {
        background-color: var(--clr-buap-blue-light);
        box-shadow: 0px 0px 5px var(--clr-buap-blue-light);
        color: white;
    }
}

@media (min-width: 992px) {
    .card-login {
        width: 75%;
    }
}

@media (min-width: 1200px) {
    .card-login {
        width: 50%;
    }
}