html {
    font-family: 'Avenir Next', 'Avenir', sans-serif;
    font-size: 100%;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.2em;
}
html:lang(ja) {
    font-family: 'Avenir Next', 'Avenir', 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
}
body {
    margin: 0 auto;
    max-width: 1100px;
    padding: 1em 1em .5em;
    box-sizing: border-box;
}
div {
    margin: 0;
    padding: 0;
}
h1, h2, header nav {
    font-family: 'Charter', 'Georgia', serif;
}
h1:lang(ja), h2:lang(ja), header nav:lang(ja) {
    font-family: 'Noto Serif JP', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
}
h1 {
    font-weight: 600;
    font-size: 2em;
    margin: 0 0 0.1em 0;
    padding: 0;
}
h2 {
    font-size: 1.4em;
    font-weight: 500;
    margin: 1em 0 0.15em 0;
    padding: 0 0 0.2em 0;
    border-bottom: 1px solid #202a25;
}
h3 {
    font-weight: 600;
}
p {
    margin: 0 0 .5em;
}
p:lang(ja) {
    line-height: 1.4em;
}
a {
    color: #202a25;
}
a:lang(ja) {
    text-underline-offset: .1em;
}
ul {
    padding: 0 0 0 30px;
    margin: 0;
    list-style-type: circle;
}
dl {
    margin: 0;
}
dt {
    font-weight: 500;
    margin: 0.5em 0 0;
}
dd {
    margin: 0 0 0 1em;
}
header {
    width: 100%;
    margin: 0 0 3em;
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
}
header h1 {
    font-size: 2em;
    flex-grow: 1;
}
header h1 a {
    text-decoration: none;
}
header h1 .subtitle {
    display: block;
    margin-top: .5em;
    font-size: .8em;
}
header nav.menu {
    font-size: 1.6em;
    margin: 0 0 0.5em;
}
header nav ul {
    margin: 0;
    padding: 0;
}
header nav.menu li {
    display: inline;
    margin-right: 1em;
}
header nav.menu li:last-child {
    margin-right: 0;
}
header nav.menu a {
    text-decoration: none;
}
header nav.menu a:hover {
    border-bottom: 3px solid #202a25;
}
header nav.menu li.active a {
    border-bottom: 3px solid #202a25;
}
header nav.lang_menu {
    flex-basis: 100%;
    display: flex;
    justify-content: flex-end;
    font-size: 1.0em;
}
header nav.lang_menu li {
    display: inline;
    margin-right: 0em;
}
header nav.lang_menu li + li:before {
    content: "/";
    padding-right: .2em;
    padding-left: .2em;
}
header nav.lang_menu a {
    text-decoration: none;
}
header nav.lang_menu a:hover {
    border-bottom: 1px solid #202a25;
}
header nav.lang_menu li.active a {
    border-bottom: 1px solid #202a25;
}

footer {
    margin-top: 50px;
    text-align: right;
    font-size: .9em;
}

.home header {
    margin-bottom: 1em;
}
.home #contact::after {
    content: "";
    display: block;
    clear: both;
    margin: 0;
}
.home #contact_bio {
    float: left;
}
.home #contact_bio ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}
.home #contact_bio ul li > svg {
    position: relative;
    top: 2px;
    margin-right: 9px;
}
.home #contact {
    margin: 2em 0 0;
}
.home #contact_bio address {
    margin: 1em 0 0 0;
}
.home #contact_photo {
    float: right;
    display: grid;
    place-items: center;
    grid-template-areas: "inner-div";
}
.home #contact_photo picture {
    min-width: 100px;
    width: 100%;
    max-width: 320px;
    border: 2px solid #202a25;
    grid-area: inner-div;
}
.home #contact_photo picture img {
    display: block;
    max-width: 320px;
}
.home #contact_photo #hover_photo {
    display: none;
}
@keyframes append-animate {
    from {
	opacity: 0;
    }
    to {
	opacity: 1;
    }
}
.home #contact_photo:hover #hover_photo {
    display: block;
    animation: append-animate .3s linear;
}
.home #news + dl {
    display: grid;
    grid-template-columns: 6em auto;
}
.home #news + dl dt {
    margin: 0.2em 0 0;
}
.home #news + dl dd {
    margin: 0.2em 0 0;
}
.home footer {
    font-size: 0.8em;
}
.home footer p {
    margin: 0;
}
.home h3#preprints, .home h3#journal-papers, .home h3#conference-papers, .home h3#book-chapters {
    margin: 0;
    padding: 0.75em 0 0.25em;
    font-size: 1.1em;
    font-weight: 600;
}

.page-cv dl {
    display: grid;
    grid-template-columns: 180px auto;
}
.page-cv dl:lang(ja) {
    grid-template-columns: 210px auto;
}
.page-cv dt {
    margin: 0.2em 0 0;
}
.page-cv dd {
    margin: 0.2em 0 0;
}

ol.publication-list {
    padding-left: 2em;
    margin: 0;
}
ol.publication-list li {
    margin: 0 0 .5em 0;
    font-size: 1em;
}
ol.publication-list li:target {
    color: #4D7561;
}
ol.publication-list li:target a {
    color: #4D7561;
}
ol.publication-list li h3 {
    margin: 0;
    font-size: 1em;
    font-weight: 600;
}
ol.publication-list li p.download .doi:not(:has(+ .preprint)):after {
    content: ".";
}
ol.publication-list li p.download .doi + .preprint:before {
    content: "\2014\00a0";
}
ol.publication-list li p.download .preprint:after {
    content: ".";
}
ol.publication-list p {
    margin: 0;
}

.hover-img-container {
  position: relative;
  display: inline-block;
  vertical-align: -0.125em;
  cursor: pointer;
}

.hover-img-reveal {
  visibility: hidden;
  opacity: 0;
  width: 0;
  height: auto;
  background: #ffffff;  
  position: absolute;
  bottom: 150%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  transition: opacity 0.2s ease-in-out, visibility 0.2s ease-in-out;
  pointer-events: none;
}

.hover-img-container:hover .hover-img-reveal {
  border: 1px solid #202a25;
  box-shadow: 2px 2px 10px 1px rgba(0, 0, 0, 0.3);
  padding: 2px;
  visibility: visible;
  opacity: 1;
  width: 300px;
  max-width: calc(100vw - 2rem);
}


@media screen and (max-width: 500px) {
    header {
        font-size: 0.8em;
    }
    header nav.menu {
        float: none;
        display: block;
        margin-top: 0;
    }
    .page-cv dl {
        display: grid;
        grid-template-columns: 80px auto;
    }
    ol.publication-list li p.download .doi, ol.publication-list li p.download .preprint {
        display: block;
    }
    ol.publication-list li p.download .doi + .preprint:before {
        content: "";
    }
    ol.publication-list li p.download .doi:after {
        content: ".";
    }
}

@media screen and (max-width: 800px) {
    header {
        float: none;
    }
    .home #contact_bio {
        float: none;
    }
    .home #contact_photo {
        float: left;
        margin-top: 10px;
    }
}

@media (prefers-color-scheme: dark) {
    html {
        background-color: #000000;
        color: #ffffff;
    }
    a {
        color: #a3d6bc;
    }
    header nav.menu a:hover {
        border-color: #a3d6bc;
    }
    header nav.menu li.active a {
        border-color: #a3d6bc;
    }
    h2 {
        border-color: #a3d6bc;
    }
    .home #contact img {
        border-color: #a3d6bc;
    }
    ol.publication-list li:target {
        color: #DBFFED;
    }
    ol.publication-list li:target a {
        color: #DBFFED;
    }
}