/* ---- tokens ---- */
:root {
  --text: #1c1c1c;
  --muted: #666660;
  --faint: #8a8a84;
  --bg: #ffffff;
  --accent: #4338ca;
  --link: #2563eb;
  --border: #e4e2dc;
  --border-soft: #edece7;
  --tag-bg: #f2f1ec;
  --max-width: 900px;
  --sidebar-width: 230px;
  --gap: 40px;
  font-size: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e7e5e0;
    --muted: #a5a29b;
    --faint: #7d7a74;
    --bg: #16151a;
    --accent: #a5b4fc;
    --link: #7aa2f7;
    --border: #302e35;
    --border-soft: #29272d;
    --tag-bg: #211f25;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

p { margin: 0 0 0.7em; }
p:last-child { margin-bottom: 0; }

ul { margin: 0; padding-left: 1.15em; }
li { margin-bottom: 0.3em; }
li:last-child { margin-bottom: 0; }

h1, h2, h3 { font-weight: 700; line-height: 1.25; margin: 0; }

/* ---- top nav ---- */
.topnav {
  border-bottom: 1px solid var(--border-soft);
}
.topnav-inner {
  max-width: calc(var(--max-width) + var(--sidebar-width) + var(--gap));
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topnav .brand {
  font-weight: 700;
  color: var(--text);
}
.topnav .brand:hover { text-decoration: none; }
.topnav nav { display: flex; gap: 18px; font-size: 0.92rem; }
.topnav nav a { color: var(--muted); }
.topnav nav a:hover { color: var(--link); text-decoration: none; }

/* ---- page shell ---- */
.page {
  max-width: calc(var(--max-width) + var(--sidebar-width) + var(--gap));
  margin: 0 auto;
  padding: 36px 24px 64px;
  display: flex;
  gap: var(--gap);
  align-items: flex-start;
}

.sidebar {
  flex: 0 0 var(--sidebar-width);
  position: sticky;
  top: 28px;
}

.sidebar img.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin-bottom: 14px;
}

.sidebar h1 {
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 2px;
}

.sidebar .role {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 2px;
}

.sidebar .org a { color: var(--muted); font-size: 0.88rem; }

.sidebar .social {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 1.05rem;
}
.sidebar .social a { color: var(--muted); }
.sidebar .social a:hover { color: var(--link); }

.content { flex: 1 1 auto; min-width: 0; }

/* ---- sections ---- */
.section { margin-bottom: 30px; }
.section:last-child { margin-bottom: 0; }

.section h2 {
  font-size: 1.05rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
  margin-bottom: 14px;
}

.section-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* ---- entry (experience / honors / mentoring rows) ---- */
.entry { margin-bottom: 12px; }
.entry:last-child { margin-bottom: 0; }

.entry-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.entry-title { font-weight: 600; }
.entry-org a { color: var(--text); }
.entry-meta { color: var(--muted); font-size: 0.86rem; white-space: nowrap; }
.entry-sub { color: var(--muted); font-size: 0.92rem; }

/* ---- publications ---- */
.pub { margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--border-soft); }
.pub:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }

.pub-meta {
  font-size: 0.82rem;
  color: var(--faint);
  margin-bottom: 3px;
}
.pub-meta .venue { color: var(--muted); font-weight: 600; }

.pub-title {
  font-weight: 700;
  font-size: 1.02rem;
  margin-bottom: 3px;
}
.pub-title a { color: var(--text); }
.pub-title a:hover { color: var(--link); }

.pub-summary {
  font-size: 0.92rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.pub-links { display: flex; gap: 6px; flex-wrap: wrap; }
.pub-links a {
  font-size: 0.78rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 7px;
}
.pub-links a:hover { color: var(--link); border-color: var(--link); text-decoration: none; }

/* ---- tags / pills ---- */
.pill {
  display: inline-block;
  font-size: 0.78rem;
  background: var(--tag-bg);
  color: var(--muted);
  border-radius: 4px;
  padding: 1px 8px;
  margin: 0 6px 6px 0;
}

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 20px;
  padding: 20px 24px 40px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--faint);
}
.site-footer a { color: var(--faint); }

/* ---- responsive ---- */
@media (max-width: 760px) {
  .page { flex-direction: column; }
  .sidebar { position: static; flex: none; width: 100%; }
  .sidebar .social { margin-bottom: 4px; }
  .section-cols { grid-template-columns: 1fr; gap: 8px; }
  .topnav-inner { flex-direction: column; align-items: flex-start; padding: 12px 16px; gap: 6px; }
  .topnav nav { gap: 14px; font-size: 0.86rem; }
  .page { padding: 24px 18px 48px; }
  .entry-row { flex-direction: column; align-items: flex-start; gap: 2px; }
}