@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    outline: 0;
}

ol,
ul {
    list-style: none;
}

a {
    text-decoration: none;
}

body {
    font-family: 'Raleway', sans-serif;
    /*    background-color: #697678;*/
    background-color: #4c4c4c;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/*banner section css start*/
.banner {
    display: flex;
    height: 100vh;
}

.banner-left {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
}

.banner-right {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
}

/*animated text section css*/
.banner-title {
    font-size: 60px;
    font-weight: 700;
    white-space: nowrap;
    position: relative;
    color: transparent;
}

.banner-title::before {
    content: "Department of CST";
    color: #22bedd;
    position: absolute;
    top: 0;
    left: 0;
    animation: banner-animated-text 3s linear infinite;
}

/*animation for banner title*/
@keyframes banner-animated-text {
    0% {
        content: "D|";
    }

    4% {
        content: "De|";
    }

    8% {
        content: "Dep|";
    }

    12% {
        content: "Depa|";
    }

    16% {
        content: "Depar|";
    }

    20% {
        content: "Depart|";
    }

    24% {
        content: "Departm|";
    }

    28% {
        content: "Departme|";
    }

    32% {
        content: "Departmen|";
    }

    36% {
        content: "Department|";
    }

    40% {
        content: "Department |";
    }

    44% {
        content: "Department o|";
    }

    48% {
        content: "Department of|";
    }

    52% {
        content: "Department of |";
    }

    56% {
        content: "Department of C|";
    }

    60% {
        content: "Department of CS|";
    }

    64%,
    82% {
        content: "Department of CST|";
    }

    83% {
        content: "Department of CS|";
    }

    84% {
        content: "Department of C|";
    }

    85% {
        content: "Department of |";
    }

    86% {
        content: "Department of|";
    }

    87% {
        content: "Department o|";
    }

    88% {
        content: "Department |";
    }

    89% {
        content: "Department|";
    }

    90% {
        content: "Departmen|";
    }

    91% {
        content: "Departme|";
    }

    92% {
        content: "Departm|";
    }

    93% {
        content: "Depart|";
    }

    94% {
        content: "Depar|";
    }

    95% {
        content: "Depa|";
    }

    96% {
        content: "Dep|";
    }

    97% {
        content: "De|";
    }

    98% {
        content: "D|";
    }

    99%,
    100% {
        content: "|";
    }

}

.banner-text {
    color: #fff;
    padding: 15px 0;
    font-size: 17px;
    font-weight: 500;
    line-height: 25px;
    text-align: justify;
}

.banner-btn {
    margin-top: 15px;
}

.read-more-btn {
    color: #fff;
    padding: 15px 20px;
    font-size: 18px;
    font-weight: 700;
    background-color: #22bedd;
    border-radius: 3px;
    transition: box-shadow 10s, color 2.8s;
}

.read-more-btn:hover {
    color: darkgreen;
    box-shadow: 1px 1px 15px 100px #121212 inset;
}

.banner-right img {
    border: 5px ridge #22bedd;
}

/*banner section end*/
/*gallery section start*/
.gallery {
    /*    margin: 50px;*/
}

.gallery-title {
    text-align: center;
    margin-bottom: 30px;
}

.gallery-title h1 {
    display: inline-block;
    color: #22bedd;
    font-size: 40px;
    font-weight: 700;
    padding: 0 15px;
    border-left: 4px solid #22bedd;
    border-right: 4px solid #22bedd;
    line-height: 0.8;
}

.gallery-items {
    display: flex;
    align-content: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.photo {
    width: 300px;
    height: 300px;
    position: relative;
    overflow: hidden;
}

/*overlay style start*/
.photo::before {
    content: "";
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    position: absolute;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: all 2s ease-out;
}

.photo:hover::before {
    opacity: 1;
}

/*overlay style end*/

.photo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/*animated or hovered border style start*/
.border {
    background: #22bedd;
    position: absolute;
    transition: 3s ease-in-out;
}

.border.top,
.border.bottom {
    width: 292px;
    height: 5px;
}

.border.left,
.border.right {
    height: 292px;
    width: 5px;
}

.top {
    top: 3px;
    right: 100%;
}

.right {
    right: 3px;
    bottom: 100%;
}

.bottom {
    bottom: 3px;
    left: 100%;
}

.left {
    left: 3px;
    top: 100%;
}

.photo:hover .top {
    right: 5px;
}

.photo:hover .right {
    bottom: 5px;
}

.photo:hover .bottom {
    left: 5px;
}

.photo:hover .left {
    top: 5px;
}

/*animated or hovered border style end*/
/*style start for transprent text over the overlay*/
.photo-content {
    color: #fff;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    text-align: center;
    transform: translateY(250px);
    opacity: 0;
    transition: all 3s linear;
}

.photo:hover .photo-content {
    opacity: 1;
}

.photo-content h3 {
    font-size: 20px;
    font-weight: 600;
}

.photo-content p {
    font-size: 18px;
    font-weight: 500;
}

/*style end for transprent text over the overlay*/
/*gallery section end*/

/*header and footer section start*/
.head-text,
.footer-text {
    background-color: #121212;
    text-align: center;
    border-radius: 5px;
}

.head-text {
    margin: 0;
}

.footer-text {
    margin: 20px 0;
}

.head-text p,
.footer-text p {
    color: #fff;
    padding: 15px 0;
}

.head-text p {
    font-size: 20px;
    font-weight: 700;
}

.footer-text p {
    font-size: 16px;
    font-weight: 400;
}

/*header and footer section end*/

/*responsive style start*/

/*style for <<extra small and small deices>>*/
@media screen and (max-width:991.98px) {
    .banner {
        display: block;
    }


    .banner-left,
    .banner-right {
        display: block;
    }

    .banner-title {
        margin-bottom: 40px;
    }

    .banner-title::before {
        padding: 15px 20px;
    }

    .banner-text {
        padding: 20px;
    }

    .banner-btn {
        text-align: center;
        margin: 0 15px 30px;
    }

    .read-more-btn {
        display: block;
    }

    .banner-right {
        text-align: center;
    }
}

/*style for <<extra small and small deices>>*/
/*style for <<extra small deices>>*/
@media screen and (max-width:575.98px) {
    .container {
        width: 100%;
        margin: 0 auto;
    }

    .banner {
        height: 45em;
    }

    .head-text p {
        font-size: 18px;
    }

    .banner-title {
        font-size: 38px;
    }

    .banner-text {
        font-size: 15px;
        line-height: 20px;
    }

    .read-more-btn {
        font-size: 15px;
    }


    .banner-right img {
        width: 88%;
    }

    .center {
        text-align: center;
    }

    .photo img {
        width: 80%;
    }
}

/*style for <<extra small deices>>*/
/*style for <<small deices>>*/
@media screen and (min-width:576px) and (max-width:767.98px) {
    .container {
        width: 540px;
        margin: 0 auto;
    }

    .banner {
        height: 55em;
    }

    .head-text p,
    .footer-text p {
        font-size: 20px;
    }

    .banner-title {
        font-size: 50px;
        margin-bottom: 40px;
    }

    .banner-text {
        font-size: 20px;
        line-height: 30px;
    }

    .read-more-btn {
        font-size: 20px;
    }


    .banner-right img {
        width: 100%;
    }

    .gallery-items {
        gap: 40px;
    }
}

/*style for <<small deices>>*/
/*style for <<medium deices>>*/
@media screen and (min-width:768px) and (max-width:991.98px) {
    .container {
        width: 720px;
        margin: 0 auto;
    }

    .banner {
        height: 58em;
    }

    .banner-title {
        margin-bottom: 30px;
    }

    .banner-right img {
        width: 100%;
    }

    .gallery-items {
        gap: 30px;
    }
}

/*style for <<medium deices>>*/
/*style for <<large deices>>*/
@media screen and (min-width:992px) and (max-width:1199.98px){
    .container{
        width: 960px;
        margin: 0 auto;
    }
    .banner-left {
    flex: 1;
}

.banner-right {
    flex: 2;
    padding: 0 35px;
}
 .banner-right img {
   width: 100%;
}
    .banner-title {
    font-size: 45px;
}
}
/*style for <<large deices>>*/
/*style for <<extra large deices>>*/
@media screen and (min-width:1200px) and (max-width:1399.98px){
    .container{
        width: 1140px;
        margin: 0 auto;
    }
}
/*style for <<extra large deices>>*/
/*style for <<extra extra large deices>>*/
@media screen and (min-width:1400px){
    .container{
        width: 1320px;
        margin: 0 auto;
    }
}
/*style for <<extra extra large deices>>*/


/*responsive style end*/