/* Shared presentation for the personal site, event pages and timetable. */
:root {
  color-scheme: light;
  --ink: #20262e;
  --muted: #48596a;
  --accent: #195c9c;
  --line: #bcc9d2;
  --surface: #f4f7fa;
}
html { background: #fff; }
body {
  box-sizing: border-box;
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
  padding: 28px 32px 64px;
  font: 16px/1.75 Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: #fff;
  overflow-wrap: anywhere;
}
h1, h2, h3, h4 { line-height: 1.4; color: var(--ink); }
h1 { font-size: 2rem; font-weight: 700; margin: 10px 0 24px; text-align: center; }
body > header > h1 { text-align: center; }
body > header .sub { text-align: center; color: var(--muted); margin: -12px 0 24px; }
center { text-align: left; }
h2 { font-size: 1.4rem; margin: 36px 0 16px; padding-bottom: 7px; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.12rem; margin: 24px 0 12px; }
h4 { font-size: 1rem; margin: 20px 0 10px; }
p { margin: 12px 0; }
a { color: var(--accent); text-underline-offset: .18em; }
a:visited { color: #554b84; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible, .table-scroll:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 2px;
}
.site-nav { text-align: center; line-height: 2.4; color: var(--muted); padding: 6px 0 12px; }
.site-nav a, .site-nav [aria-current] { display: inline-block; padding: 0 7px; }
.site-nav a:first-child, .site-nav [aria-current]:first-child { padding-left: 0; }
.site-nav [aria-current] { color: var(--ink); font-weight: 700; text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: .5em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
.site-nav + hr { margin: 0 0 28px; }
ul, ol { margin: 12px 0 24px; padding-left: 30px; }
li { margin: 7px 0; }
ol > li { margin: 0 0 18px; padding-left: 3px; }
dl { margin: 20px 0 10px; }
dt { margin-top: 12px; }
dd { margin-left: 28px; }
details { margin: 12px 0; padding: 12px 16px; border: 1px solid #d6dfe7; border-radius: 4px; }
summary { cursor: pointer; font-weight: 700; color: var(--muted); }
details[open] summary { margin-bottom: 14px; }
details > :last-child { margin-bottom: 6px; }
img { max-width: 100%; height: auto; }
.table-scroll { overflow-x: auto; margin: 16px 0 28px; }
table { width: 100%; min-width: 640px; border-collapse: collapse; table-layout: fixed; font-size: .95rem; }
th, td { border: 1px solid var(--line); padding: 10px 8px; height: 50px; text-align: center; vertical-align: middle; }
th { background: var(--surface); color: var(--muted); }
td:first-child, th:first-child { width: 100px; }
tbody tr:nth-child(even) { background: #fafbfd; }
.time { color: var(--muted); }
.docs a, .journal-link, .arxiv-link, .publication-link {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 7px 12px;
  color: var(--accent);
  text-decoration: none;
}
.journal-link, .arxiv-link, .publication-link {
  padding: 1px 6px;
  line-height: 1.4;
}
.contact-box {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 10px 12px;
}
.photo figcaption, footer { color: var(--muted); }
footer { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--line); font-size: .9rem; }
@media (max-width: 600px) {
  body { padding: 18px 16px 40px; }
  h1 { font-size: 1.55rem; }
  h2 { font-size: 1.2rem; margin-top: 28px; }
  .site-nav { font-size: .95rem; }
  .site-nav a, .site-nav [aria-current] { padding-right: 4px; padding-left: 4px; }
  details { padding: 10px 12px; }
  dd { margin-left: 18px; }
  .photo { margin-right: 0; margin-left: 0; }
}
@media print {
  body { max-width: none; padding: 0; font-size: 11pt; }
  .table-scroll { overflow: visible; }
  table { min-width: 0; }
}