:root {
  --ink: #1f2933;
  --muted: #5a6672;
  --accent: #7a1f2b;
  --accent-dark: #52141d;
  --border: #e2e5e8;
  --bg: #fdfdfc;
  --max-width: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

h1, h2, h3 {
  font-family: Georgia, "Iowan Old Style", "Times New Roman", serif;
  font-weight: normal;
  color: var(--ink);
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

a:hover {
  border-bottom-color: var(--accent);
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem 1.5rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.site-title {
  font-size: 1.5rem;
  margin: 0;
  letter-spacing: 0.01em;
}

.site-title a {
  color: var(--ink);
  border-bottom: none;
}

nav.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

nav.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

nav.site-nav a.active,
nav.site-nav a:hover {
  color: var(--accent);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.page-title {
  font-size: 1.7rem;
  margin: 0 0 1.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

/* Home page */
.home-layout {
  display: flex;
  gap: 2.25rem;
  flex-wrap: wrap;
  align-items: flex-start;
}

.home-photo {
  flex: 0 0 200px;
}

.home-photo img {
  width: 100%;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.home-bio {
  flex: 1 1 360px;
  min-width: 280px;
}

.home-bio p {
  margin: 0 0 1.1rem;
}

/* Research: two columns on desktop, stacked on narrow screens.
   The page opts into a wider container via <body class="wide">. */
body.wide { --max-width: 1060px; }

.research-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 1rem 3.25rem;
  align-items: start;
}

.research-cols > div > section.pub-section:last-child {
  margin-bottom: 0;
}

@media (max-width: 820px) {
  body.wide { --max-width: 760px; }
  .research-cols {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .research-cols > div > section.pub-section:last-child {
    margin-bottom: 2.5rem;
  }
}

/* Section blocks */
section.pub-section {
  margin-bottom: 2.5rem;
}

section.pub-section h2 {
  font-size: 1.2rem;
  margin: 0 0 1.1rem;
  color: var(--accent-dark);
}

.pub {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
}

.pub:last-child { border-bottom: none; }

.pub-title {
  margin: 0 0 0.25rem;
  font-weight: 600;
}

.pub-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.pub-meta em { color: var(--ink); }

.pub-links {
  margin-top: 0.35rem;
  font-size: 0.9rem;
}

.pub-links a {
  margin-right: 1rem;
}

.pub-abstract {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  color: var(--muted);
}

/* Teaching */
.teaching-cols {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.teaching-cols > div {
  flex: 1 1 300px;
  min-width: 260px;
}

.course {
  margin-bottom: 1rem;
}

.course-name {
  margin: 0 0 0.2rem;
  font-weight: 600;
}

.course-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.course-links {
  font-size: 0.9rem;
}

.course-links a { margin-right: 0.9rem; }

/* Contact */
.contact-block p {
  margin: 0 0 1rem;
}

.email {
  font-family: Consolas, Menlo, monospace;
  font-size: 0.95rem;
  background: #f2f0ee;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
}

footer.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 2rem 1.5rem;
}

@media (max-width: 480px) {
  nav.site-nav ul { gap: 1rem; }
  .site-header .wrap { padding: 1.25rem 1.25rem 1rem; }
}
