/* =================================================================
   Homepage custom styles — Jiebiao Wang
   Scoped to the new sections; inherits AcademicPages theme for nav/sidebar.
   ================================================================= */

:root {
  --ink: #1f1d1a;
  --ink-soft: #4a463f;
  --paper: #fbfaf7;
  --rule: #d9d1c2;
  --accent: #7a2e1f;      /* oxblood for links/buttons */
  --accent-soft: #b8503a;
  --navy: #2e4858;
  --olive: #5a6b4a;
  --gold: #a8924a;
}

/* ---------- Intro ---------- */
.intro-block {
  margin: 0.5em 0 2.2em;
  max-width: 48em;
}
.intro-block .lead {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.08em;
  line-height: 1.6;
  color: var(--ink);
}
.intro-block p {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  line-height: 1.65;
  color: var(--ink-soft);
}
.intro-block a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(122, 46, 31, 0.25);
  transition: border-color 0.15s ease;
}
.intro-block a:hover {
  border-bottom-color: var(--accent);
}
.funding-note {
  font-size: 0.93em;
  padding: 0.9em 1.1em;
  background: #f4efe2;
  border-left: 3px solid var(--gold);
  color: var(--ink-soft);
  font-style: italic;
}
.funding-note strong {
  font-style: normal;
  color: var(--ink);
  font-variant: small-caps;
  letter-spacing: 0.03em;
}

/* ---------- Section headings ---------- */
.page__content h2 {
  font-family: Georgia, "Iowan Old Style", serif;
  font-size: 1.55em;
  font-weight: 600;
  color: var(--ink);
  margin-top: 2.6em;
  margin-bottom: 1em;
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--rule);
  letter-spacing: -0.005em;
}

/* ---------- Research themes ---------- */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.1em;
  margin: 0.5em 0 1em;
}
.theme-card {
  background: #fff;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--navy);
  padding: 1.1em 1.2em 1.2em;
  border-radius: 2px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.theme-card:nth-child(2) { border-top-color: var(--olive); }
.theme-card:nth-child(3) { border-top-color: var(--accent); }
.theme-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(30, 25, 20, 0.08);
}
.theme-kicker {
  font-family: Georgia, serif;
  font-size: 0.72em;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.5em;
  opacity: 0.7;
}
.theme-card h3 {
  font-family: Georgia, serif;
  font-size: 1.1em;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.5em;
}
.theme-card p {
  font-family: Georgia, serif;
  font-size: 0.93em;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}
.theme-card em {
  color: var(--accent);
  font-style: italic;
}

/* ---------- Featured publications ---------- */
.featured-pubs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.3em;
  margin-bottom: 1em;
}
.pub-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.4em;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 1.1em 1.3em;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.pub-card:hover {
  box-shadow: 0 8px 24px rgba(30, 25, 20, 0.08);
  transform: translateY(-1px);
}
.pub-figure {
  background: #fbfaf7;
  border: 1px solid var(--rule);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.6em;
  min-height: 140px;
}
.pub-figure img {
  width: 100%;
  height: auto;
  max-height: 170px;
  display: block;
}
.pub-body h3 {
  font-family: Georgia, serif;
  font-size: 1.25em;
  font-weight: 700;
  color: var(--ink);
  margin: 0.1em 0 0.35em;
  letter-spacing: -0.01em;
}
.pub-tagline {
  font-family: Georgia, serif;
  font-size: 1em;
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 0.55em;
}
.pub-tagline em { color: var(--accent); font-style: italic; }
.pub-meta {
  font-family: Georgia, serif;
  font-size: 0.88em;
  color: var(--ink-soft);
  margin: 0 0 0.55em;
  line-height: 1.45;
}
.pub-meta em { font-style: italic; }
.pub-links {
  font-family: Georgia, serif;
  font-size: 0.88em;
  margin: 0;
}
.pub-links a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(122, 46, 31, 0.3);
  padding-bottom: 1px;
  transition: border-color 0.15s ease;
}
.pub-links a:hover { border-bottom-color: var(--accent); }

.pub-tags {
  display: flex;
  gap: 0.45em;
  margin-bottom: 0.45em;
  flex-wrap: wrap;
}
.tag {
  display: inline-block;
  font-family: Georgia, serif;
  font-size: 0.7em;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2em 0.7em;
  border-radius: 1px;
  font-weight: 600;
}
.tag-method {
  background: #ece5d4;
  color: var(--ink-soft);
}
.tag-year {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--rule);
}
.highlight-note {
  color: var(--accent);
  font-style: italic;
  font-weight: 600;
}

.see-all-pubs {
  text-align: right;
  margin-top: 0.3em;
  font-family: Georgia, serif;
  font-size: 0.95em;
}
.see-all-pubs a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(122, 46, 31, 0.3);
}
.see-all-pubs a:hover { border-bottom-color: var(--accent); }

/* ---------- CTAs ---------- */
.cta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.3em;
  margin: 0.5em 0 1em;
}
.cta-card {
  padding: 1.4em 1.5em 1.6em;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.cta-students {
  background: linear-gradient(135deg, #f4efe2 0%, #ece5d4 100%);
  border: 1px solid #d8ceb4;
}
.cta-collab {
  background: linear-gradient(135deg, #eaeef0 0%, #d8dfe3 100%);
  border: 1px solid #bdc7ce;
}
.cta-eyebrow {
  font-family: Georgia, serif;
  font-size: 0.72em;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.6em;
}
.cta-card h3 {
  font-family: Georgia, serif;
  font-size: 1.3em;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.55em;
}
.cta-card p {
  font-family: Georgia, serif;
  font-size: 0.95em;
  line-height: 1.58;
  color: var(--ink);
  margin: 0 0 0.8em;
}
.cta-card strong { color: var(--ink); }
.cta-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.1em;
}
.cta-list li {
  font-family: Georgia, serif;
  font-size: 0.9em;
  color: var(--ink-soft);
  padding: 0.3em 0 0.3em 1em;
  position: relative;
  line-height: 1.45;
}
.cta-list li::before {
  content: "§";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}
.cta-list a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(122, 46, 31, 0.3);
}
.cta-button {
  display: inline-block;
  font-family: Georgia, serif;
  font-size: 0.92em;
  padding: 0.7em 1.4em;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none !important;
  border-radius: 1px;
  border: none;
  letter-spacing: 0.02em;
  transition: background 0.15s ease, transform 0.15s ease;
}
.cta-button:hover {
  background: #5a2014;
  transform: translateY(-1px);
}
.cta-button-alt {
  background: var(--navy);
}
.cta-button-alt:hover {
  background: #1c3340;
}

/* ---------- News ---------- */
.news-list {
  list-style: none;
  padding: 0;
  margin: 0.5em 0 1em;
  border-top: 1px solid var(--rule);
}
.news-list li {
  font-family: Georgia, serif;
  font-size: 0.95em;
  line-height: 1.55;
  color: var(--ink);
  padding: 0.8em 0;
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1em;
  align-items: baseline;
}
.news-date {
  font-variant: small-caps;
  letter-spacing: 0.05em;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.88em;
}

/* ---------- Publications page ---------- */
.pub-legend {
  font-size: 0.92em;
  color: var(--ink-soft);
  background: #f4efe2;
  border-left: 3px solid var(--gold);
  padding: 0.8em 1.1em;
  margin: 0.5em 0 2em;
  line-height: 1.55;
  font-family: Georgia, serif;
}
.pub-legend a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(122, 46, 31, 0.3);
}
.page__content h3 {
  font-family: Georgia, serif;
  font-size: 1.15em;
  font-weight: 600;
  color: var(--accent);
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  letter-spacing: 0.01em;
}
.page__content h2 + h3 {
  margin-top: 0.8em;
}
/* Tighten paragraph spacing in publication lists */
.page__content p {
  margin: 0.45em 0 0.9em;
  line-height: 1.55;
}
/* Style the bracketed method name at the start of entries */
.page__content p a:first-child:not([href^="#"]) {
  font-weight: 600;
}
/* underlined student authors */
.page__content u {
  text-decoration: underline;
  text-decoration-color: rgba(122, 46, 31, 0.35);
  text-underline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .pub-card {
    grid-template-columns: 1fr;
    gap: 0.9em;
  }
  .pub-figure {
    min-height: 130px;
  }
  .news-list li {
    grid-template-columns: 1fr;
    gap: 0.1em;
  }
  .news-date {
    font-size: 0.82em;
  }
  .page__content h2 {
    font-size: 1.35em;
  }
}