body{
    background-color: #f8f9fa;
}

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

.intro-text {
    padding-top: 150px;
    padding-bottom: 100px;
}

.intro-heading {
    font-size: 60px;
    line-height: 50px;
    margin-bottom: 25px;
    font-family: 'Roboto', sans-serif;
}

.intro-sub {
    font-size: 22px;
    line-height: 22px;
    margin-bottom: 25px;
    font-family: 'Raleway', sans-serif;
}

.intro-description{
    margin-left: auto;
    margin-right: auto;
    width: 80%;
    font-size: 16px;
    line-height: 22px;
    margin-bottom: 25px;
    padding: 5px;
    color: rgb(255, 255, 255, 1);
    background-color: rgb(65, 65, 65, 0.5);
    border-radius: 5px;
    font-family: 'Raleway', sans-serif;
}

@media (min-width: 768px) { 
    .intro-description{
        width: 475px;
    }
}

.button {
    font-family: 'Raleway', sans-serif;
    font-size: 25px;
    color: white;
    padding-left: 24px;
    padding-right: 24px;
    padding-top: 5px;
    padding-bottom: 5px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 15px;
    border: 0;
}

.btn-primary {
    background: rgb(57,73,171, 0.7); /*colour of button */
    color: white; /*colour of text */
}

.btn-primary:hover, .btn-primary:focus, 
.btn-primary:active, .btn-primary:active:focus, .btn-primary:active:hover, .btn-primary:active.focus,
.btn-primary.active, .btn-primary.active:focus, .btn-primary.active:hover, .btn-primary.active.focus,
.open > .dropdown-toggle.btn-primary, 
.open > .dropdown-toggle.btn-primary:hover,
.open > .dropdown-toggle.btn-primary:focus, 
.open > .dropdown-toggle.btn-primary.focus,
.btn-primary.disabled:hover, .btn-primary[disabled]:hover, fieldset[disabled] .btn-primary:hover,
.btn-primary.disabled:focus, .btn-primary[disabled]:focus, fieldset[disabled] .btn-primary:focus,
.btn-primary.disabled.focus, .btn-primary[disabled].focus, fieldset[disabled] .btn-primary.focus {
    background: rgb(48,63,159, 1); /*colour of button when active */
    color: white; /*colour of text when active */
}

#portfolio {
    padding-top: 40px;
}

.portfolio-list{
    padding-top: 30px;
}

.portfolio-item {
    margin-bottom: 30px;
}

.portfolio-link {
    position: relative;
    display: block;
}

.portfolio-hover {
    position: absolute;
    width: 100%;
    height: 100%;
    transition: all ease 0.6s;
    opacity: 0;
    background: rgba(68,138,255, 0.8);
}

.portfolio-hover:hover {
    opacity: 1;
}

.portfolio-hover-content {
    position: relative;
    font-size: 25px;
    text-align: center;
    color: white;
    margin: 0;
    top: 50%;
    transform: translateY(-50%);
}

.footer {
    padding: 25px;
    text-align: center;
    align-self: center;
    background-color: #bdbdbd;
}

.social-buttons {
    margin: 0px;
    padding: 0px;
}

.social-button {
    font-size: 30px;
    display: inline-block;
    width: 50px;
    height: 50px;
    color: white;
    background-color: black;
    border-radius: 100%;
    margin: 10px;
    padding: 0;
}

.social-button:hover {
    background-color: pink;
    transition: all ease 0.6s;
}

.social-button-icon{
    color: white;
    margin: 10px;
    align-items: center;
}

.copyright {
    font-size: 15px;
    font-family: 'Raleway', sans-serif;
    text-align: center;
}

.portfolio-modal-dialog {
    transition: all ease 0.6s;
}

/* @media (min-width: 768px) { 
    .portfolio-modal-dialog{
        max-width: 475px;
    }
} */

.modal-title{
    font-family: 'Roboto', sans-serif;
}

.modal-subtitle {
    font-family: 'Raleway', sans-serif;
}

.modal-img{
    margin-top: 20px;
}

.android-img-control{
    filter: invert(100%);
}
.carousel-indicators-black{
    filter: invert(100%);
}

.button-close-div {
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

.momdal-sourcecode{
    text-align: center;
    font-size: 14px;
    font-family: 'Raleway', sans-serif;
}

.social-button-icon-modal{
    color: rgb(0, 0, 0);
    margin: 10px;
    align-items: center;
}

.youtube-frame {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    margin-bottom: 20px;
}

.youtube-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}