:root {
  --bg: #ece6f7;
  --text: #1f2430;
  --muted: #5a5670;
  --accent: #4b3a85;
  --rule: #d2c8e6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1724;
    --text: #e8e6ee;
    --muted: #a9a5bb;
    --accent: #b9a6ee;
    --rule: #2e2940;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.65;
  font-size: 18px;
}

.page {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 40px;
}

/* Intro: text on the left, headshot on the right */
.intro {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 40px;
  align-items: start;
  padding-bottom: 8px;
}

.headshot {
  width: 240px;
  height: auto;
  border-radius: 8px;
  display: block;
  margin-top: 6px;
}

h1 {
  font-size: 2.1rem;
  font-weight: normal;
  margin: 0 0 6px;
  letter-spacing: 0.01em;
}

.role {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 1.05rem;
}

h2 {
  font-size: 1.35rem;
  font-weight: normal;
  margin: 36px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}

.intro h2 { margin-top: 28px; }

h3 {
  font-size: 1rem;
  margin: 22px 0 6px;
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

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

.links a {
  display: inline-block;
  margin-right: 18px;
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

ul { padding-left: 22px; margin-top: 6px; }
ol.papers { padding-left: 22px; margin-top: 6px; }

details { margin-top: 8px; }

summary {
  cursor: pointer;
  color: var(--accent);
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

details p {
  margin: 10px 0 4px;
  padding: 4px 0 4px 16px;
  border-left: 3px solid var(--accent);
  font-size: 0.95rem;
}
li { margin-bottom: 6px; }

footer {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.8rem;
}

/* On narrow screens, put the photo above the text */
@media (max-width: 640px) {
  body { font-size: 17px; }
  .page { padding-top: 32px; }
  .intro {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .headshot {
    order: -1;
    width: 180px;
  }
}