@font-face{
    font-family: 'SourceSans';
    src: url("../fonts/SourceSans3-Regular.ttf")
    format('truetype');
}

html, body, #background, #content-wrapper {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: SourceSans, sans-serif;
}
#background {
    position: absolute;
    background-size: cover;
    background: rgba(255, 255, 255, 0.6) url('../images/bg.jpg') no-repeat center center;
    background-size: cover;
    background-blend-mode: lighten;
}
#content-wrapper {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
}
#hku-logo {
    padding-bottom: 6%;
}
#login-box {
    min-width: 380px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.7);
    text-align: center;
    border-radius: 15px;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.5);
}
.portal-title {
    font-size: 1.55em;
    color: #707070;
    font-weight: normal;
}
#login-button {
    width: 100%;
    background: #8ec63f;
    padding: 8px;
    font-size: 18px;
    border: 2px solid #8ec63f;
}
#login-button:hover {
    border: 2px solid #668937;
}
.portals {
    flex-wrap: nowrap;
    align-items: flex-end;
    column-gap: 6px;
}
.portals .col {
    position: relative;
    min-width: 200px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    top: 0;
    left: 0;
}
.portals .col:hover {
    top: -2px;
    left: -2px;
    box-shadow: 2px 2px 5px silver;
    cursor: pointer;
}

.cf-turnstile { font-size: 0; }