/* ==========================================================================
   Research page  (used by _includes/research-list.html)
   Teaching page styles are at the end of this file.
   Colours come from the theme variables, so light and dark modes both work.
   ========================================================================== */

.research {
  margin-top: 0.5em;
}

/* Legend and section jump links ------------------------------------------ */
.research-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3em 1.5em;
  margin: 0 0 0.9em;
  font-size: 0.8em;
  color: var(--global-text-color-light);
}

.research-legend > span {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
}

.research-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em 1.2em;
  margin: 0 0 0.5em;
  padding-bottom: 0.8em;
  border-bottom: 1px solid var(--global-border-color);
  font-size: 0.85em;
}

.archive .research-toc a {
  color: var(--global-text-color);
  text-decoration: none;
  border-bottom: 1px dotted var(--global-dark-border-color);
}

.archive .research-toc a:hover {
  color: var(--global-base-color);
  border-bottom-color: var(--global-base-color);
}

/* Section and group headings ---------------------------------------------- */
.research-section {
  scroll-margin-top: 80px;
}

.research-section > h2 {
  margin: 1.6em 0 0.6em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--global-border-color);
}

.research-group {
  margin: 1.3em 0 0.8em;
  font-size: 0.95em;
  font-style: italic;
  font-weight: 600;
  color: var(--global-text-color);
  opacity: 0.75;
}

/* A single paper ---------------------------------------------------------- */
.pub {
  margin: 0 0 1.5em;
}

.pub p {
  margin: 0;
}

.pub__title {
  font-weight: 700;
  line-height: 1.45;
  color: var(--global-text-color);
}

.pub__title-en {
  font-weight: 600;
}

.pub__meta {
  margin-top: 0.2em !important;
  font-size: 0.9em;
  line-height: 1.55;
}

.pub__author sup {
  margin-right: 0.12em;
  font-size: 0.68em;
  color: var(--global-text-color-light);
}

.pub__author--me {
  font-weight: 700;
}

.pub__corr {
  margin-right: 0.12em;
  color: var(--global-base-color);
}

.archive .pub__meta a {
  color: inherit;
  text-decoration: none;
}

.archive .pub__meta a:hover {
  color: var(--global-base-color);
  text-decoration: underline;
}

.pub__note {
  color: var(--global-text-color-light);
}

/* Badges: Forthcoming, In Chinese ----------------------------------------- */
.pub__badge {
  display: inline-block;
  margin-right: 0.5em;
  padding: 0.05em 0.45em;
  border: 1px solid var(--global-base-color);
  border-radius: 3px;
  font-size: 0.72em;
  font-weight: 600;
  line-height: 1.5;
  vertical-align: 0.15em;
  color: var(--global-base-color);
}

.pub__badge--muted {
  margin: 0 0 0 0.55em;
  border-color: var(--global-dark-border-color);
  color: var(--global-text-color-light);
}

/* Buttons: Abstract, Published Version, Code ------------------------------ */
.pub__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45em;
  margin-top: 0.5em;
}

.pub__btn,
.archive a.pub__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin: 0;
  padding: 0.15em 0.7em;
  border: 1px solid var(--global-dark-border-color);
  border-radius: 4px;
  background: transparent;
  font-family: inherit;
  font-size: 0.75em;
  line-height: 1.7;
  color: var(--global-text-color);
  text-decoration: none;
  cursor: pointer;
}

.pub__btn:hover,
.pub__btn:focus-visible,
.archive a.pub__btn:hover {
  border-color: var(--global-base-color);
  color: var(--global-base-color);
  text-decoration: none;
}

.pub__caret {
  display: inline-block;
  font-size: 0.75em;
  transition: transform 0.15s ease;
}

.pub__toggle[aria-expanded="true"] .pub__caret {
  transform: rotate(90deg);
}

.oa--gold {
  color: #f68212;
}

.oa--green {
  color: #3a9d23;
}

/* Abstract panel ---------------------------------------------------------- */
.pub__abstract {
  margin-top: 0.6em;
  padding: 0.7em 1em;
  border-left: 3px solid var(--global-base-color);
  background: rgba(127, 127, 127, 0.08);
  font-size: 0.85em;
  line-height: 1.6;
}

.pub__abstract p + p {
  margin-top: 0.6em;
}

.pub__abstract[hidden] {
  display: none;
}

/* ==========================================================================
   Teaching page  (used by _includes/teaching-list.html)
   ========================================================================== */

.teaching-section {
  scroll-margin-top: 80px;
}

.teaching-section > h2 {
  margin: 1.6em 0 0.8em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--global-border-color);
}

.teaching-section:first-child > h2 {
  margin-top: 1.1em;
}

.course {
  margin: 0 0 1.4em;
}

.course p {
  margin: 0;
}

.course__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.1em 1.5em;
}

.course__title {
  font-weight: 700;
  line-height: 1.45;
  color: var(--global-text-color);
}

.course__term {
  font-size: 0.9em;
  white-space: nowrap;
  color: var(--global-text-color-light);
}

.course__context {
  font-size: 0.9em;
  font-style: italic;
  line-height: 1.5;
}

.course__desc {
  margin-top: 0.3em;
  font-size: 0.9em;
  line-height: 1.6;
}

.course__desc p + p {
  margin-top: 0.5em;
}