body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    /* padding: 20px; */
    background-color: #f9f9f9;
    color: #333;
    /* padding-bottom: 500px; Adjust to desired space */
}
nav {
    position: sticky;
    top: 0;
    /* background-color: #ffffff; #e2f9fe */
    /* dark grey */
    background-color:  #ffffff ; 
    padding: 10px 20px;
    z-index: 1000;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    border-bottom: 2px solid #eaeaea;
}
nav a {
    margin-right: 20px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}
nav a:hover {
    color: #007BFF; /* Accent color for hover */
}
h1 {
    margin-top: 50px;
    border-bottom: 1px solid #000000; /*  #007BFF; */
    padding-bottom: 10px;
    font-size: 2.2em;
    font-weight: 300;
    text-align: center;
}
h2 {
    margin-top: 5px;
    font-size: 1.2em;
    font-weight: 50;
    text-align: center;
}
h3 {
    font-weight: 400;
    font-size: 3.2em;
    margin: 16px 0px 4px 0px;
}

.paper-title {
    padding: 1px 0px 1px 0px;
}
.scroll-container {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding-bottom: 20px;
    margin-bottom: 30px;
}
.row {
    display: inline-block;
    flex: 0 0 auto;
    margin-right: 20px;
    width: 80%;
    border: 2px solid #ccc;
    padding: 5px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #fff;
    transition: transform 0.3s ease-in-out;
}
.row:hover {
    transform: translateY(-5px);
}
.video-column {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    width: auto;
}
.cond-video-block {
    flex: 0 0 15%;
    margin-bottom: 20px;
}
.pano-video-block {
    flex: 0 0 80%;
    margin-bottom: 20px;
}
.pano-video-block-single {
    flex: 0 0 80%;
    margin-bottom: 20px;
}
.pano-video-block-half {
    flex: 0 0 48%;
    margin-bottom: 20px;
}
.pano-video-block-half-cond {
    flex: 0 0 40%;
    margin-bottom: 20px;
}
img {
    width: 100%;
    object-fit: cover;
    border-radius: 0px;
    transition: box-shadow 0.3s ease;
}
img:hover {
    box-shadow: 0px 6px 12px rgba(0, 0, 0, 0.2);
}
video {
    width: 100%;
    object-fit: cover;
    border-radius: 0px;
    transition: box-shadow 0.3s ease;
}
video:hover {
    box-shadow: 0px 6px 12px rgba(0, 0, 0, 0.2);
}
.text-prompt {
    margin-top: 0px;
    font-size: 1em;
    padding: 0px;
    text-align: center;
    color: #404040; /* Grey color for text */
    
}

section {
    padding-top: 80px; /* Adjust this to match the height of the sticky nav */
    margin-top: -80px; /* Same value as padding-top, negative to counteract the extra space */
}
/* Responsive adjustments */
@media (max-width: 768px) {
    .row {
        width: 100%;
    }
    .pano-video-block, .pano-video-block-single, .pano-video-block-half {
        flex: 0 0 100%;
    }
}
.authors {
    font-size: 26px;
    text-align: center;
}
.affiliatons {
    font-size: 18px;
}
.affil-row {
    margin-top: 18px;
}
/* .container {
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
} */
.flex-row {
    display: flex;
    flex-flow: row wrap;
    padding: 0;
    margin: 0;
    list-style: none;
}
.text-box-shadow {
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #ccc;
    margin: 10px;
    background-color: #fff;
    width: 80%;
}
.text-box {
    text-align: justify;
    /* width: 80%; */
}

/* for vr video */
.video {
    position: relative;
}
.video {
    aspect-ratio: 2 / 1;
}
.open-vr {
    font-family: 'Roboto', sans-serif;
    cursor: pointer;
    /* position: absolute; */
    /* top: 0;
    right: 0;
    bottom: 0;
    left: 0; */
    /* height: min-content;
    width: fit-content; */
    font-size: large;
    color:#007BFF;
    background-color: #f9f9f9;
}

#vr-root {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: #000000a0;
}

#vr-root > .vr-container {
    aspect-ratio: 4 / 3;
    width: min(100vh, 80vw);
    width: min(100dvh, 80dvw);
    position: fixed;
    margin: auto;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

#vr-root > .close-btn {
    position: fixed;
    top: 10vh;
    top: 10dvh;
    right: 5vw;
    right: 5dvw;
    cursor: pointer;
}

/* #toast {
    position: fixed;
    bottom: 20vh;
    bottom: 20dvh;
    left: 50%;
    transform: translateX(-50%);
    margin: auto;
    border-radius: 40px;
    min-width: 200px;
    background: #ffffff;
    height: calc(20px + 2rem);
    padding: 10px 10px 10px 40px;
    text-align: center;
    font-size: 1.5rem;
    line-height: 2rem;
    box-shadow: 0 0 10px 0 #000000a0;
    white-space: nowrap;
} */

@media (max-width: 550px) {
    /* #toast {
        font-size: 16px;
        line-height: 20px;
        height: 40px;
        bottom: 15vh;
        bottom: 15dvh;
    } */
}

/* #toast.showToast { */
    /* animation: showToast 1s linear;
}

#toast.hideToast {
    animation: hideToast 1s linear;
    opacity: 0;
}

#toast::before {
    content: "";
    width: 20px;
    height: 20px;
    background-image: url("data:image/svg+xml,%3Csvg t='1707819223854' class='icon' viewBox='0 0 1024 1024' version='1.1' xmlns='http://www.w3.org/2000/svg' p-id='4325' id='mx_n_1707819223856' width='20' height='20'%3E%3Cpath d='M512 1024A512 512 0 1 1 512 0a512 512 0 0 1 0 1024zM448 448v384h128V448H448z m0-256v128h128V192H448z' fill='%23000000' p-id='4326'%3E%3C/path%3E%3C/svg%3E");
    position: absolute;
    z-index: 1;
    left: 10px;
    top: 0;
    bottom: 0;
    margin: auto;
} */

/* @keyframes showToast {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes hideToast {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
} */