a {
    color: #007bff;
    text-decoration: none;
}

a:focus,
a:hover {
    color: #005587;
    text-decoration: underline;
}

a.hover {
    text-decoration: none;
}

a.hover:hover {
    text-decoration: underline;
}

/* element: paragraphs in the body text */
p {
    line-height: 150%;
    font-size: 18px;
}

/* element: divider line */
hr {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
}

td,
th {
    font-family: Arial;
    font-size: 16px;
    font-weight: 400;
}

body {
    padding-top: 3.5rem;
}

strong {
    font-family: Arial;
    font-size: 18px;
    font-weight: 800
}

/* block: heading in the paragraph */
heading {
    font-family: Arial;
    color: #A31F34;
    /*color: #155799;*/
    font-size: 30px;
    font-weight: bold;
}

/* block: paper title in the body text */
papername {
    font-family: Arial;
    font-size: 18px;
    font-weight: 600;
}

/* page banner */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 50px;
    z-index: 1000;
    background-color: #343a40;
}

.navbar-brand {
    margin-left: 10px;
    font-size: 22px;
}

.nav-item {
    opacity: 0.9;
    font-size: 18px
}

/* page banner */
.page-header {
    color: #fff;
    text-align: center;
    background-color: #159957;
    /*background-image: linear-gradient(120deg, #4b2e83, #b7a57a);*/
    background-image: linear-gradient(120deg, #155799, #159957);
    padding-top: 100px;
    padding-bottom: 100px;
    margin-top: -10px;
    /*text-shadow: 1px 1px 0 black;*/
}

.project-name {
    margin-top: 10px;
    margin-bottom: 10px;
    font-size: 50px
}

.project-tagline {
    margin-top: 40px;
    margin-bottom: 10px;
    font-weight: normal;
    opacity: 0.9;
    font-size: 28px
}

/* class: page title */
.paper-title {
    font-family: Arial;
    font-size: 40px;
    text-align: center;
    font-weight: 800;
}

/* class: section */
.section {
    padding-top: 1em;
    padding-bottom: 0em;
    margin-left: auto;
    margin-right: auto;
}

/* class: profile */
.profile {
    display: inline-block;
    width: 180px;
}

/* class: profile image */
.profile-img {
    border-radius: 50%;
    width: 150px;
}

/* class: Bibtex */
.bibtax {
    /* font-family: Arial; */
    padding-left: 1em;
    padding-right: 1em;
    padding-top: 1em;
    padding-bottom: 1em;
    background-color: #f5f5f5;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    word-wrap: break-word;
    white-space: pre-wrap;
}

/* Table for examples */
#example {
    font-family: Arial, Helvetica, sans-serif;
    border-collapse: collapse;
    width: 100%;
}

#example td,
#example th {
    border: 1px solid #ddd;
    padding: 8px;
}

#example tr:nth-child(even) {
    background-color: #f5f5f5;
}

#example tr:hover {
    background-color: #ddd;
}

/*Sizes*/

.page-header {
    max-width: 700em;
}

.section {
    width: 100%;
    max-width: 70em;
}

.image-container {
    width: 100%;
    height: 280px;
    margin: 10px auto;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

@media (max-width: 768px) {
    .image-container {
        height: 220px;
    }
}