/*
---------------------------------------------
global setting
---------------------------------------------
*/
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: left;
    background-color: #fff;
}

p {
    color: #333333;
    font-family: "Poppins", sans-serif;
}

h3 {
    font-size: 1.5rem;
    color: #003e74;
    font-family: "Poppins", sans-serif;
}

a {
    text-decoration: none;
    color: #003e74;
    font-family: "Poppins", sans-serif;
}

.panel1 {
    padding: 50px 0;
}

.panel2 {
    padding: 50px 0;
    background-color: #e1e1e1;
}

.card-body span {
    font-style: italic;
}

.card-header {
    color: #333333;
    font-family: "Poppins", sans-serif;
    font-weight: bolder;
}

.btn-primary {
    color: #fff;
    background-color: #20a8d8;
    border-color: #20a8d8;
}

.btn-primary:hover {
    background-color: #1b8eb7;
    border-color: #1b8eb7;
}

strong {
    font-style: italic;
}

.poppins-thin {
  font-family: "Poppins", sans-serif;
  font-weight: 100;
  font-style: normal;
}

.poppins-extralight {
  font-family: "Poppins", sans-serif;
  font-weight: 200;
  font-style: normal;
}

.poppins-light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-style: normal;
}

.poppins-regular {
  font-family: "Poppins", sans-serif;
  font-weight: 400;
  font-style: normal;
}

.poppins-medium {
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
}

.poppins-semibold {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-style: normal;
}

.poppins-bold {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-style: normal;
}

.poppins-extrabold {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-style: normal;
}

.poppins-black {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-style: normal;
}

.poppins-thin-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 100;
  font-style: italic;
}

.poppins-extralight-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 200;
  font-style: italic;
}

.poppins-light-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-style: italic;
}

.poppins-regular-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 400;
  font-style: italic;
}

.poppins-medium-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: italic;
}

.poppins-semibold-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-style: italic;
}

.poppins-bold-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-style: italic;
}

.poppins-extrabold-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-style: italic;
}

.poppins-black-italic {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-style: italic;
}



/*
---------------------------------------------
navbar
---------------------------------------------
*/

nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    align-content: center;
    transition: 0.6s;
    padding: 1rem 5rem;
    z-index: 999;
    background-color: #ffffff;
    font-family: "Poppins", sans-serif;
    max-height: 66px;
    border-bottom: 1px solid rgb(200 200 200 / 80%)
}

.logo {
    position: relative;
    display: flex;
    text-decoration: none;
    padding: 1rem;
    font-size: 25px;
}

.nav-menu {
    display: flex;
    padding: 0;
    margin: 0;
    justify-content: space-around;
    line-height: 2;
}

.nav-menu .active {
    color: #003e74;
    border-bottom: 3px solid #003e74;
}

.nav-menu li {
    list-style: none;
}

.nav-menu li a {
    color: #333333;
    text-decoration: none;
    display: block;
    padding: 1rem 1rem;
    letter-spacing: 1px;
}

.nav-menu li a:hover {
    color: #003e74;
    border-bottom: 3px solid #003e74;
}

nav .burger {
    display: none;
}

nav .burger:hover {
    cursor: pointer;
    color: darkgrey;
}

@media only screen and (max-width: 800px) {
    .nav-menu {
        max-height: 0;
        width: 100%;
        position: absolute;
        left: 0;
        top: 60px;
        background-color: #ffffff;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        overflow: hidden;
    }

    .nav-menu ul {
        border-bottom: 1px solid black;
    }

    .showing {
        max-height: 1000px;
        transition: 1s;
        border-bottom: 1px solid rgb(200 200 200 / 80%)
    }

    nav .burger {
        display: block;
    }
}

/*
---------------------------------------------
home - banner
---------------------------------------------
*/
#banner {
    background: url(../images/test5.jpg) no-repeat;
    background-size: cover;
    width: 100%;
    height: 300px;
    margin-top: 60px;
}

#banner .container {
    text-align: left;
    padding-top: 100px;
}

#banner h1 {
    color: white;
    font-weight: 600;
    font-size: 50px;
    text-transform: uppercase;
}

#banner p {
    color: white;
    font-size: 1.2rem;
    width: 50%;
}


@media only screen and (max-width: 754px) {
    #banner .container {
        padding-top: 70px;
    }
}

/*
---------------------------------------------
home - research
---------------------------------------------
*/
.img-container {
    overflow: hidden;
    margin: 0 20px 10px 0;
}

.img-container p {
    padding: 80px 10px 0 20px;
    color: white;
}

.img-container .image{
    transition: transform .5s ease;
}

.img-container .image:hover{
    transform: scale(1.03);
    cursor: pointer;
}

.image h3 {
    color: white;
    text-align: center;
    padding-top: 130px;
}

#research1 {
    background: url("../images/research1.jpg") no-repeat;
    height: 300px;
    background-size: cover;
    filter: grayscale(40%);
}

#research2 {
    background: url("../images/research2.jpeg") no-repeat;
    height: 300px;
    background-size: cover;
    filter: grayscale(40%);
}

#research3 {
    background: url("../images/research3.jpg") no-repeat;
    height: 300px;
    background-size: cover;
    filter: grayscale(40%);
}

#research4 {
    background: url("../images/research4.jpg") no-repeat;
    height: 300px;
    background-size: cover;
    filter: grayscale(40%);
}

@media only screen and (max-width: 1190px) and (min-width: 768px) {
    .col-md-4{
        width: 30%
    }
}

@media only screen and (max-width: 767px) {
    .img-container p {
        padding: 110px 0 0 30px;
    }
}

/*
---------------------------------------------
home - news
---------------------------------------------
*/
.news {
    font-family: "Poppins", sans-serif;
}


/*
---------------------------------------------
publications
---------------------------------------------
*/
.pubtitle {
    font-size: 1.1rem;
    font-weight: bold;
}

.pubitems .item {
    margin-bottom: 30px;
    width: 100%;
}

.pubitems .pubmain {
    min-height: 110px;
    position: relative;
    padding-bottom: 30px;
    -webkit-box-shadow: 0px 3px 3px -3px #ccc;
    box-shadow: 0px 3px 3px -3px #ccc;
}

.pubitems .pubmain .pubassets {
    position: absolute;
    bottom: 0;
    right: 0;
    background: #e1e1e1;
    text-align: center;
}

.pubauthor, .pubcite {
    font-size: small;
    color: #585858;
}

.badge {
    display: inline-block;
    padding: 0.25em 0.4em;
    font-size: 85%;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
    box-shadow: 0 2px 5px 0 rgb(0 0 0 / 16%), 0 2px 10px 0 rgb(0 0 0 / 12%);
}

.badge-lightred {
    background-color: lightblue;
    color: rgba(0,0,0,.6);
}

/*
---------------------------------------------
members
---------------------------------------------
*/
.card {
    display: inline-block;
    width: 221px;
    margin-right: 30px;
    margin-bottom: 30px;
    vertical-align: top;
}

.card img {
    width: 220px;
    height: 220px;
}

.card-title {
    font-weight: bold;
}

.card-body {
    height: 130px;
}

.card-body .card-text {
    font-size: small;
}

.card-body a {
    font-size: small;
}

/*
---------------------------------------------
about PI
---------------------------------------------
*/
#aboutPI {
    width: 400px;
}

@media only screen and (max-width: 1399px) {
    #aboutPI {
        width: 350px;
    }
}

@media only screen and (max-width: 1199px) {
    #aboutPI {
        width: 285px;
    }
}

@media only screen and (max-width: 991px) {
    #aboutPI {
        width: 220px;
    }
}

@media only screen and (max-width: 767px) {
    #aboutPI {
        width: 400px;
    }
}

/*
---------------------------------------------
scroll to top button
---------------------------------------------
*/
#toTopBtn {
    display: none; /* Hidden by default */
    position: fixed; /* Fixed/sticky position */
    bottom: 30px; /* Place the button at the bottom of the page */
    right: 30px; /* Place the button 30px from the right */
    z-index: 99; /* Make sure it does not overlap */
    border: none; /* Remove borders */
    outline: none; /* Remove outline */
    background-color: #003e74; /* Set a background color */
    color: white; /* Text color */
    cursor: pointer; /* Add a mouse pointer on hover */
    padding: 10px 20px; /* Some padding */
    border-radius: 10px; /* Rounded corners */
    font-size: 18px; /* Increase font size */
}

#toTopBtn:hover {
    background-color: #555; /* Add a dark-grey background on hover */
}

/*
---------------------------------------------
footer
---------------------------------------------
*/
footer {
    padding: 20px 0 10px;
    background: #FFFFFF;
    border-top: 1px solid rgb(200 200 200 / 80%);
}

footer span {
    color: #003e74;
}

footer a {
    color: #003e74;
    letter-spacing: 1px;
}