/* Tsukuba colour used by the current site (.logo span) */
:root {
  --md-primary-fg-color:        #790018;
  --md-primary-fg-color--light: #9a2036;
  --md-primary-fg-color--dark:  #5a0012;
  --md-accent-fg-color:         #790018;
}

/* ---------- Profile page (otani.md) ---------- */
.md-typeset .profile {
  display: flex;
  gap: 2.4rem;
  align-items: flex-start;
  margin: 1.2rem 0 2.4rem;
}
.md-typeset .profile-photo {
  width: 168px;
  height: 168px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.md-typeset .profile-body { flex: 1; }
.md-typeset h1.profile-name {
  margin: 0 0 0.4rem;
  font-weight: 700;
  color: var(--md-default-fg-color);
}
.md-typeset h1.profile-name .headerlink { display: none; }
.md-typeset .profile-role {
  margin: 0 0 1rem;
  color: var(--md-default-fg-color--light);
  line-height: 1.6;
}
.md-typeset .profile-lead { font-size: 0.9rem; line-height: 1.8; }
.md-typeset .profile-links a {
  display: inline-block;
  margin: 0 0.4rem 0.4rem 0;
  padding: 0.15rem 0.75rem;
  border: 1px solid var(--md-primary-fg-color);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--md-primary-fg-color);
}
.md-typeset .profile-links a:hover {
  background: var(--md-primary-fg-color);
  color: #fff;
}
.md-typeset h2 {
  font-weight: 700;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  padding-bottom: 0.3rem;
}
.md-typeset .pubs ol li { margin-bottom: 0.7rem; line-height: 1.6; }
.md-typeset .contact { line-height: 1.8; }
/* Narrow the reading column on pages without sidebars */
.md-content__inner:has(.profile) { max-width: 46rem; margin-left: auto; margin-right: auto; }
@media (max-width: 600px) {
  .md-typeset .profile { flex-direction: column; align-items: center; text-align: center; gap: 1rem; }
  .md-typeset .profile-photo { width: 140px; height: 140px; }
}

/* ---------- Light header (the site uses the light scheme only) ---------- */
[data-md-color-scheme="default"] .md-header,
[data-md-color-scheme="default"] .md-tabs {
  background: #fff;
  color: var(--md-primary-fg-color);
}
[data-md-color-scheme="default"] .md-header { box-shadow: none; border-bottom: 1px solid #eee; }
[data-md-color-scheme="default"] .md-tabs { border-bottom: 1px solid #eee; }
[data-md-color-scheme="default"] .md-tabs__link { color: #555; opacity: 1; }
[data-md-color-scheme="default"] .md-tabs__item--active .md-tabs__link,
[data-md-color-scheme="default"] .md-tabs__link:hover { color: var(--md-primary-fg-color); }
[data-md-color-scheme="default"] .md-search__input { background: #f3f3f3; color: #333; }
[data-md-color-scheme="default"] .md-search__input::placeholder,
[data-md-color-scheme="default"] .md-search__icon { color: #777; }
.md-header__button.md-logo { display: none; }
.md-header__title { font-weight: 700; }

/* ---------- Member roster (member/index.md) ---------- */
.md-typeset dl.roster {
  display: grid;
  grid-template-columns: 9rem 1fr;
  column-gap: 1.5rem;
  row-gap: 0.5rem;
  margin: 1.5rem 0 2.5rem;
}
.md-typeset dl.roster dt {
  grid-column: 1;
  margin: 0;
  font-weight: normal;
  color: var(--md-default-fg-color--light);
}
.md-typeset dl.roster dd {
  grid-column: 2;
  margin: 0;
  font-size: 0.85rem;
}
.md-typeset dl.roster dt:not(:first-child),
.md-typeset dl.roster dt:not(:first-child) + dd { margin-top: 0.8rem; }

/* ---------- CV lists (member/index.md) ---------- */
.md-typeset dl.cv {
  display: grid;
  grid-template-columns: 11rem 1fr;
  column-gap: 1.5rem;
  row-gap: 0.45rem;
  font-size: 0.75rem;
}
.md-typeset dl.cv dt { margin: 0; font-weight: normal; color: var(--md-default-fg-color--light); }
.md-typeset dl.cv dd { margin: 0; }
@media (max-width: 600px) {
  .md-typeset dl.roster, .md-typeset dl.cv { grid-template-columns: 1fr; }
  .md-typeset dl.roster dd, .md-typeset dl.cv dd { grid-column: 1; }
}

/* ---------- Related papers: year accordion (publications/related.md) ---------- */
.md-typeset .fold-buttons { text-align: right; margin: 1rem 0 0.6rem; }
.md-typeset .fold-buttons button {
  margin-left: 0.4rem;
  padding: 0.15rem 0.8rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--md-default-fg-color--light);
  cursor: pointer;
}
.md-typeset .fold-buttons button:hover { border-color: var(--md-primary-fg-color); color: var(--md-primary-fg-color); }
.md-typeset details.year {
  margin: 0;
  border: none;
  border-top: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0;
  box-shadow: none;
  background: none;
}
.md-typeset details.year:last-of-type { border-bottom: 1px solid var(--md-default-fg-color--lightest); }
.md-typeset details.year > summary {
  padding: 0.7rem 1.8rem 0.7rem 0.2rem;
  background: none;
  font-weight: 700;
  font-size: 0.85rem;
}
.md-typeset details.year > summary::before { display: none; }
.md-typeset details.year > summary::after { top: 0.8rem; right: 0.2rem; }
.md-typeset details.year > ul { margin-top: 0; }

/* ---------- Research history (research.md) ---------- */
.md-typeset .history { border-left: 2px solid var(--md-default-fg-color--lightest); padding-left: 1.4rem; margin-left: 0.3rem; }
.md-typeset .history h3.period { margin-top: 2rem; font-weight: 700; position: relative; }
.md-typeset .history h3.period::before {
  content: ""; position: absolute; left: -1.83rem; top: 0.45em;
  width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--md-primary-fg-color);
}
.md-typeset .history .period-place { margin-top: -0.4rem; color: var(--md-default-fg-color--light); font-size: 0.75rem; }
.md-typeset .history .pubs ul { font-size: 0.72rem; }
.md-typeset .history .pubs li { margin-bottom: 0.4rem; }

/* Align the roster columns with the CV / alumni lists */
.md-typeset dl.roster { grid-template-columns: 11rem 1fr; }

.md-typeset .cv-head { margin: 1.6rem 0 0.6rem; font-weight: 700; }

/* ---------- Language switch "JP | EN" (overrides/partials/alternate.html) ---------- */
.lang-switch { display: flex; align-items: center; gap: 0.35rem; margin: 0 0.6rem; font-size: 0.75rem; }
.lang-switch__link { color: var(--md-default-fg-color--light); }
.lang-switch__link:hover { color: var(--md-primary-fg-color); }
.lang-switch__link--active { color: var(--md-primary-fg-color); font-weight: 700; pointer-events: none; }
.lang-switch__sep { color: var(--md-default-fg-color--lighter); }

/* ---------- Member page header (member/index.md) ---------- */
.md-typeset .member-head { display: flex; align-items: center; gap: 1.6rem; margin: 1rem 0 1.4rem; }
.md-typeset .member-photo { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.md-typeset .member-name { margin: 0; font-size: 1.1rem; font-weight: 700; }
.md-typeset .member-kana { margin-left: 0.8rem; font-size: 0.7rem; font-weight: normal; color: var(--md-default-fg-color--light); }
.md-typeset .member-role { margin: 0.2rem 0 0; color: var(--md-default-fg-color--light); }

/* ---------- Show the top tabs on medium-width windows (laptops) ----------
   Material hides .md-tabs below 76.25em (1220px) and folds everything into the
   hamburger drawer. Keep the tabs visible down to 60em (960px); the left sidebar
   still folds into the drawer in this range. */
@media screen and (min-width: 60em) and (max-width: 76.234375em) {
  .md-tabs { display: block; }
}

/* ---------- Display math: scroll horizontally instead of being clipped ---------- */
.md-typeset div.arithmatex { overflow-x: auto; overflow-y: hidden; }
.md-typeset div.arithmatex > mjx-container { margin: 1em 0; }