@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=DM+Sans:wght@300;400;500&display=swap');

:root {
  --bg: #faf9f7;
  --surface: #ffffff;
  --text: #1a1a18;
  --muted: #6b6b60;
  --accent: #2c4a6e;
  --accent-light: #e8eef5;
  --border: #e2e0da;
  --serif: 'EB Garamond', Georgia, serif;
  --sans: 'DM Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
}

/* ── Header ── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.site-name {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
}

nav { display: flex; }

nav a {
  display: flex;
  align-items: center;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: 0 1.1rem;
  height: 60px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

nav a:hover { color: var(--text); }
nav a.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Layout ── */
main {
  max-width: 860px;
  margin: 0 auto;
  padding: 3.5rem 2rem 5rem;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* ── Page headings ── */
.page-title {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.page-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0 2.5rem;
}

a { color: var(--accent); }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--muted);
}

/* ── HOME ── */
.home-grid {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 3rem;
  align-items: start;
}

h1 {
  font-family: var(--serif);
  font-size: 2.4rem;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

.subtitle {
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1.8rem;
}

.home-body p { margin-bottom: 1.1rem; color: #333330; }

.contact-block {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 2;
}

.contact-block strong { color: var(--text); font-weight: 500; }

.affiliation-block { margin-top: 1.5rem; }

.affiliation-block p {
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.photo-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.photo-placeholder {
  width: 180px;
  height: 220px;
  background: var(--accent-light);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.78rem;
  text-align: center;
  gap: 0.5rem;
}

.photo-placeholder svg { opacity: 0.35; }
.photo-note { font-family: var(--sans); font-size: 0.72rem; color: var(--muted); text-align: center; font-style: italic; }

/* ── CV ── */
.cv-section { margin-bottom: 2.5rem; }

.cv-section h3 {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.cv-entry {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.5rem 1.5rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.cv-entry:last-child { border-bottom: none; }

.cv-year {
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--muted);
  padding-top: 0.1rem;
}

.cv-detail strong { font-family: var(--serif); font-weight: 500; display: block; margin-bottom: 0.1rem; }
.cv-detail span { font-family: var(--sans); font-size: 0.85rem; color: var(--muted); }

.cv-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.5rem 1.1rem;
  text-decoration: none;
  margin-bottom: 2.5rem;
  transition: background 0.2s, color 0.2s;
}

.cv-download:hover { background: var(--accent); color: white; }

/* ── RESEARCH ── */
.research-interests {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  padding: 1.2rem 1.5rem;
  margin-bottom: 2.5rem;
  font-size: 0.97rem;
  color: #333;
  font-style: italic;
}

.paper-list { list-style: none; }

.paper-item { padding: 1.4rem 0; border-bottom: 1px solid var(--border); }
.paper-item:first-child { padding-top: 0; }

.paper-title { font-family: var(--serif); font-size: 1.05rem; font-weight: 500; color: var(--text); margin-bottom: 0.25rem; }
.paper-meta { font-family: var(--sans); font-size: 0.82rem; color: var(--muted); margin-bottom: 0.5rem; }
.paper-abstract { font-size: 0.93rem; color: #444; line-height: 1.65; }

.paper-tag {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  margin-right: 0.4rem;
}

.tag-wip { background: #fff3e0; color: #b05c00; }
.tag-progress { background: #e8f5e9; color: #2e7d32; }

.research-fields { margin-top: 2.5rem; }

.research-fields h3 {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.field-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.field-tag {
  font-family: var(--sans);
  font-size: 0.82rem;
  padding: 0.35rem 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
}

/* ── TEACHING ── */
.course-card {
  border: 1px solid var(--border);
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  background: var(--surface);
  transition: border-color 0.2s;
}

.course-card:hover { border-color: var(--accent); }
.course-name { font-family: var(--serif); font-size: 1.1rem; font-weight: 500; margin-bottom: 0.25rem; }
.course-meta { font-family: var(--sans); font-size: 0.82rem; color: var(--muted); margin-bottom: 0.7rem; }
.course-desc { font-size: 0.93rem; color: #444; }

/* ── CONTACT ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.contact-card { background: var(--surface); border: 1px solid var(--border); padding: 1.8rem; }

.contact-card h3 {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.contact-card p { font-family: var(--sans); font-size: 0.9rem; color: var(--muted); line-height: 2; }
.contact-card a { color: var(--accent); text-decoration: none; }
.contact-card a:hover { text-decoration: underline; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .home-grid { grid-template-columns: 1fr; }
  .cv-entry { grid-template-columns: 90px 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  nav a { padding: 0 0.7rem; font-size: 0.75rem; }
}