body {
    margin: 0;
    min-height: 100vh;
    background-color: #fff;
    background-image: url('../images/congres-expo.jpg');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.page-wrapper {
    position: relative;
    z-index: 2;
    padding: 5vh min(2rem, 4vw);
}

.page-title,
#colophon {
    color: white;
}

.page-title {
    font-size: 2.6rem;
    font-weight: bold;
    text-align: center;
    margin-top: 1em;
    text-shadow:  0 .05em .2em rgba(0, 0, 0, 0.7);
}

.page-title small {
    color: #fff !important;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .page-title {
        font-size: 2rem;
    }
}

.page-wrapper {
    display: flex;
    justify-content: center;
    flex-direction: column;
    text-align: center;
}

.branding {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    padding: 4px;
    max-width: 180px;
    box-shadow: 2px 4px 4px rgba(0, 0, 0, 0.2);
}

.branding img {
    max-width: 100%;
}

.card {
    height: 100%;
    box-shadow: 0 4px 2rem rgba(0, 0, 0, 0.7);
    padding: .5rem;
    border-radius: .5rem;
    transition: all 0.3s ease-in-out;
}

.card:hover {
    transform: scale(1.02);
}

.card-header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: var(--at-primary);
    color: var(--at-primary-contrast);
    min-height: 8rem;
}

.card-body {
    text-align: left;
    border-radius: .25rem;
    padding: 1.25rem .5rem 1rem;
    font-size: small;
}

.card-body p {
    margin-bottom: 0;
}

.card-body + .card-footer {
    padding-top: 0;
}

.card-footer {
    background: transparent;
    text-align: center;
    border: none;
}

.card-title {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 1.4rem;
    font-weight: var(--at-font-medium) !important;
    margin: 0;
}

.card-title * {
    display: block;
    font-style: normal;
    font-weight: normal;
}

.card-title small {
    text-transform: uppercase;
    font-size: .8rem;
    margin: .25rem auto;
}

.card-title em {
    font-size: .75em;
    margin-top: .5em;
    background: rgba(0, 0, 0, .15);
    padding: .1em .35em;
    border-radius: .25rem;
    transform: rotate(-1.5deg);
}

.contact-link {
    position: absolute;
    z-index: 3;
    height: 1em;
    width: 1em;
    background-color: var(--at-primary);
    color: var(--at-primary-contrast) !important;
    border-radius: 100%;
    padding: .25em;
    top: .5em;
    right: .5em;
    box-shadow: 0 4px 2rem rgba(0, 0, 0, 0.7);
    transition: transform 0.3s ease-in-out;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: min(2.4rem, 10vw);
    box-sizing: content-box;
}

.contact-link:hover {
    transform: scale(1.1);
}

.contact-link .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    top: unset;
}

@media (max-width: 576px) {
    .navbar-nav {
        flex-direction: column;
        align-items: center;
    }
}

@media (min-width: 576px) {
    .navbar-nav {
        flex-direction: row;
    }

    .nav-item {
        padding-left: 20px;
    }
}