html {
    height: 100%;
}

html, body {
    min-height: 100%;
}

#mainNav {
    background-color: rgb(15,20,40);
}
  
#mainNav .navbar-toggler {
    font-size: 12px;
    right: 0;
    padding: 13px;
    text-transform: uppercase;
    color: white;
    border: 0;
    background-color: rgb(79, 134, 149);
}
  
  
#mainNav .navbar-brand.active, #mainNav .navbar-brand:active, #mainNav .navbar-brand:focus, #mainNav .navbar-brand:hover {
    color: rgba(235,14,138, .5);
}
  
#mainNav .navbar-nav .nav-item .nav-link {
    font-size: 90%;
    font-weight: 400;
    padding: 0.75em 0;
    letter-spacing: 1px;
    color: rgb(79, 134, 149);
}
  
#mainNav .navbar-nav .nav-item .nav-link.active, #mainNav .navbar-nav .nav-item .nav-link:hover {
    color: rgba(79, 134, 149, .5);
}

.btn-primary {
    background-color: rgb(79, 134, 149);
    border-color: rgb(79, 134, 149);
}

.btn-primary:hover,
.btn-primary:active {
    background-color: rgba(79, 134, 149, .5);
    border-color: rgba(79, 134, 149, .5);
}
  
@media (min-width: 992px) {
    #mainNav {
        padding-top: 0;
        padding-bottom: 0;
        -webkit-transition: padding-top 0.3s, padding-bottom 0.3s;
        transition: padding-top 0.3s, padding-bottom 0.3s;
        border: none;
    }
    #mainNav .navbar-brand {
        font-size: 1.75em;
        -webkit-transition: all 0.3s;
        transition: all 0.3s;
    }
    #mainNav .navbar-nav .nav-item .nav-link {
        padding: 1.1em 1em !important;
    }
    #mainNav.navbar-shrink {
        padding-top: 0;
        padding-bottom: 0;
        background-color: #212529;
    }
    #mainNav.navbar-shrink .navbar-brand {
        font-size: 1.25em;
        padding: 12px 0;
    }
}


header.masthead {
    text-align: center;
    color: white;
    background-image: url("../images/back-1.jpg");
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-position: center center;
    background-size: cover;

    background-color: rgba(0,0,0,.6);
    background-blend-mode: darken;
}
  
header.masthead .intro-text {
    padding-top: 200px;
    padding-bottom: 50px;
}
  
header.masthead .intro-text .intro-lead-in {
    font-size: 22px;
    font-style: italic;
    line-height: 22px;
    margin-bottom: 25px;
}

header.masthead .container {
    display: flex;
	flex-direction: row;
	flex-wrap: nowrap;
	justify-content: space-around;
	align-items: stretch;
	align-content: stretch;
}

footer {
    padding-top: 40px;
    padding-bottom: 60px;
    
    background-color: rgb(79, 134, 149);
    color: #fff;
}

footer a {
    color: rgba(255, 255, 255, .8)
}

footer a:hover {
    color: rgba(255, 255, 255, .6);
    text-decoration: none;
}


header.masthead .intro-text .intro-heading {
    font-size: 3.2rem;
    font-weight: 300;
    line-height: 3.2rem;
    margin-bottom: 25px;
}
  
@media (min-width: 768px) {
    header.masthead .intro-text {
        padding-top: 300px;
        padding-bottom: 200px;
    }

    header.masthead .intro-text .intro-lead-in {
        font-size: 40px;
        font-style: italic;
        line-height: 40px;
        margin-bottom: 25px;
    }
}

@media (min-width: 1200px) {
    header.masthead .intro-text .intro-heading {
        font-size: 3.8rem;
        font-weight: 300;
        line-height: 3.8rem;
        margin-bottom: 50px;
    }
}




.login-box {
    padding-top: 300px;
    background-color: rgb(245, 248, 253);
}

.login-box .alert {
    width: 350px;
}

.form-signin {
    width: 350px;
    padding: 20px;
}

@media (min-width: 1px) and (max-width: 991px) {
    header.masthead .container {
        flex-direction: column;
    }
    .login-box {
        padding-top: 0;
        margin-bottom: 40px;
    }
    .login-box .alert {
        width: 100%;
    }
    .form-signin {
        width: 100%;
    }
}