@import url('https://fonts.googleapis.com/css?family=Fira+Sans:400');

*,
*:before,
*:after {
    box-sizing: border-box;
}

* {
    user-select: none;
    margin: 0;
    padding: 0;
    text-decoration: none !important;
}

*:focus {
    outline: none !important;
}

body {
    background: #00111d;
    overflow-x: hidden;
}

.mainHeading {
    font-family: 'Fira Sans';
    color: white;
    text-align: center;
    margin: 100px auto 10px auto;
}

h5.secondaryHeading {
    font-family: 'Fira Sans';
    color: white;
    text-align: center;
    margin: 0px auto 100px auto;
}

.blockContainer {
    font-family: 'Fira Sans';
    width: 100vw;
    display: flex;
    flex-flow: row;
    perspective: 1000px;
    perspective-origin: center;
    transform-style: preserve-3d;
}

.blockCol {
    height: 100%;
    width: 33.333333%;
    transition: transform 600ms cubic-bezier(0.390, 0.575, 0.565, 1.000), opacity 300ms ease;
    position: relative;
    transform-style: preserve-3d;
}

.blockCol:hover,
.blockCol:focus {
    transition: transform 300ms cubic-bezier(0.390, 0.575, 0.565, 1.000), opacity 300ms ease;
    transform-style: preserve-3d;
}

.blockCol .blockCardContainer {
    position: relative;
    width: 100%;
    height: 66.6666vh;
    margin: 0px;
    padding: 0px;
    text-align: center;
    color: transparent;
    transform-style: preserve-3d;
}

.blockCol .blockCardContainer:hover,
.blockCol .blockCardContainer:focus {
    opacity: 1;
    color: white;
    transform-style: preserve-3d;
}

.blockCol .blockOverlay {
    display: block;
    position: absolute;
    cursor: pointer;
    width: 50%;
    height: 50%;
    z-index: 1;
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(1) {
    left: 0;
    top: 0;
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(2) {
    right: 0;
    top: 0;
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(3) {
    bottom: 0;
    right: 0;
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(4) {
    bottom: 0;
    left: 0;
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(1):hover~.blockCard,
.blockCol .blockOverlay:nth-of-type(1):focus~.blockCard {
    transform-origin: right top;
    transform: rotateX(3deg) rotateY(-3deg) translateZ(0);
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(2):hover~.blockCard,
.blockCol .blockOverlay:nth-of-type(2):focus~.blockCard {
    transform-origin: left top;
    transform: rotateX(3deg) rotateY(3deg) translateZ(0);
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(3):hover~.blockCard,
.blockCol .blockOverlay:nth-of-type(3):focus~.blockCard {
    transform-origin: left bottom;
    transform: rotateX(-3deg) rotateY(3deg) translateZ(0);
    transform-style: preserve-3d;
}

.blockCol .blockOverlay:nth-of-type(4):hover~.blockCard,
.blockCol .blockOverlay:nth-of-type(4):focus~.blockCard {
    transform-origin: right bottom;
    transform: rotateX(-3deg) rotateY(-3deg) translateZ(0);
    transform-style: preserve-3d;
}

.blockCol .blockCard {
    border-radius: 5px;
    height: 100%;
    transition: all 300ms ease-out;
    align-items: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 0;
    opacity: 1;
    transform-style: preserve-3d;
}

.blockCol .blockCard:before,
.blockCol .blockCard:after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 100%;
    height: 100%;
    opacity: .9;
    transition: transform 300ms ease;
    transform: scale(.98);
    transform-style: preserve-3d;
}

.blockCol .blockCard:before {
    background-size: cover;
    background-position: 50% 50%;
    transform-style: preserve-3d;
}

.blockCol .blockCardContainer:hover .blockCard:before,
.blockCol .blockCardContainer:hover .blockCard:after,
.blockCol .blockCardContainer:focus .blockCard:before,
.blockCol .blockCardContainer:focus .blockCard:after {
    opacity: .34;
    transform: scale(1);
    transform-style: preserve-3d;
}

.blockCol:nth-of-type(1) .blockCardContainer:nth-of-type(1) .blockCard:before {
    background-image: url('../assets/images/general.jpg');
}

.blockCol:nth-of-type(2) .blockCardContainer:nth-of-type(1) .blockCard:before {
    background-image: url('../assets/images/security.jpg');
}

.blockCol:nth-of-type(3) .blockCardContainer:nth-of-type(1) .blockCard:before {
    background-image: url('../assets/images/health.jpg');
}

.blockCol:nth-of-type(1) .blockCardContainer:nth-of-type(2) .blockCard:before {
    background-image: url('../assets/images/education.jpg');
}

.blockCol:nth-of-type(2) .blockCardContainer:nth-of-type(2) .blockCard:before {
    background-image: url('../assets/images/agriculture.jpg');
}

.blockCol:nth-of-type(3) .blockCardContainer:nth-of-type(2) .blockCard:before {
    background-image: url('../assets/images/software.jpg');
}

.blockCol:nth-of-type(1) .blockCardContainer:nth-of-type(3) .blockCard:before {
    background-image: url('../assets/images/commerce.jpg');
}

.blockCol:nth-of-type(2) .blockCardContainer:nth-of-type(3) .blockCard:before {
    background-image: url('../assets/images/research.jpg');
}

.blockCol:nth-of-type(3) .blockCardContainer:nth-of-type(3) .blockCard:before {
    background-image: url('../assets/images/traffic.jpg');
}

.blockCol .blockCard:after {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, 0.654) 100%);
}

.blockCol h4 {
    text-align: left;
    font-size: 25px;
    font-weight: 400;
    transform: translateY(5px);
    transition: transform 450ms cubic-bezier(0.390, 0.575, 0.565, 1.000);
    outline: 1px solid transparent;
}

.blockCol .blockOverlay:hover~.blockCard h4,
.blockCol .blockOverlay:focus~.blockCard h4 {
    transform: translateZ(144px);
}

.blockCol .blockCard>span {
    font-size: 34px;
    opacity: 0;
    transform: translateX(-3px);
    transition: all 300ms ease;
}

.blockCol .blockCardContainer:hover>.blockCard>h4,
.blockCol .blockCardContainer:focus>.blockCard>h4 {
    transform: translateY(-13px);
}

.blockCol .blockCardContainer:hover>.blockCard>span,
.blockCol .blockCardContainer:focus>.blockCard>span {
    opacity: 1;
    transform: translateX(3px);
    animation: slideRight 300ms ease;
}

@media (max-width: 768px) {
    body {
        overflow-y: scroll;
    }

    .blockCol h4 {
        font-size: 17px;
    }
}

@media (max-width: 540px) {
    .blockContainer {
        flex-flow: column;
        perspective: none;
    }

    .blockCol {
        height: 100%;
        width: 100vw;
    }

    .blockCol:nth-of-type(1),
    .blockCol:nth-of-type(2),
    .blockCol:nth-of-type(3),
    .blockCol:hover {
        transform: none;
    }

    .blockCol h4 {
        padding-bottom: 8px;
        font-size: 18px;
    }

    .blockCol .blockCard>span {
        display: none;
    }
}

@media (max-height: 599px) {
    .blockCol .blockCard>span {
        display: none;
    }
}

@media (max-width: 860px) and (max-height: 540px) {
    .blockCol h4 {
        font-size: 14px;
    }
}

@media (max-width: 620px) and (max-height: 540px) {
    .blockCol h4 {
        font-size: 13px;
    }
}