:root {
  --paper: #f6f5f1;
  --ink: #1b1b1b;
  --ink-soft: #55534c;
  --rule: #dedad0;
  --accent: #2b3a67;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 58, 103, 0.35);
  transition: border-color 0.15s ease, color 0.15s ease;
}

a:hover, a:focus-visible {
  border-color: var(--accent);
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-bottom-color: transparent;
}

.wrap {
  max-width: 800px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 5rem;
}

header.site-header {
  margin-bottom: 2.5rem;
}

nav.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  margin-bottom: 2.75rem;
}

nav.top-nav a {
  border-bottom: none;
  color: var(--ink-soft);
}

nav.top-nav a:hover, nav.top-nav a.current {
  color: var(--accent);
}

nav.top-nav a.current {
  text-decoration: underline;
  text-underline-offset: 3px;
}

h1.name {
  font-size: 1.7rem;
  font-weight: 600;
  margin: 0 0 0.15rem;
  letter-spacing: 0.01em;
}

p.role {
  margin: 0 0 1.6rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

p.role .dot {
  color: var(--rule);
  padding: 0 0.5em;
}

section {
  margin-bottom: 2.6rem;
}

section > p {
  margin: 0 0 1rem;
}

h2.section-title {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--ink-soft);
  margin: 0 0 1.1rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--rule);
}

img.portrait {
  float: right;
  width: 150px;
  height: 150px;
  object-fit: cover;
  object-position: 50% 30%;
  border-radius: 4px;
  margin: 0.3rem 0 0.8rem 1.75rem;
}

#about::after {
  content: "";
  display: block;
  clear: both;
}

.contact-line {
  font-size: 0.97rem;
  color: var(--ink-soft);
}

.contact-line a { color: var(--accent); }

.contact-line span.sep {
  color: var(--rule);
  padding: 0 0.55em;
}

ul.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

ul.news-list li {
  display: grid;
  grid-template-columns: 6.4em 1fr;
  gap: 0.9rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 0.97rem;
}

ul.news-list li:last-child { border-bottom: none; }

ul.news-list time {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  padding-top: 0.2rem;
}

ul.pub-list, ul.teach-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

ul.pub-list li, ul.teach-list li {
  padding: 1rem 0;
  border-bottom: 1px dashed var(--rule);
}

ul.pub-list li:last-child, ul.teach-list li:last-child { border-bottom: none; }

.pub-title {
  font-weight: 600;
  display: block;
  margin-bottom: 0.2rem;
}

.pub-meta, .teach-meta {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}

.teach-title {
  font-weight: 600;
  display: block;
  margin-bottom: 0.2rem;
}

h3.group-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-soft);
  margin: 2.2rem 0 0.6rem;
}

h3.group-title:first-of-type {
  margin-top: 0;
}

h2.subsection-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 2.6rem 0 0.9rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
}

h2.subsection-title:first-of-type {
  padding-top: 0;
  border-top: none;
  margin-top: 0.3rem;
}

.teach-block {
  margin-bottom: 1.7rem;
}

.teach-block:last-child {
  margin-bottom: 0;
}

.teach-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-weight: 600;
  margin-bottom: 0.55rem;
}

.teach-header .dates {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--ink-soft);
  white-space: nowrap;
}

ul.course-list {
  list-style: disc;
  margin: 0;
  padding-left: 1.15em;
}

ul.course-list li {
  font-size: 0.97rem;
  padding: 0.2rem 0;
}

ul.course-list li::marker {
  color: var(--rule);
}

ul.course-list .term {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-style: normal;
  color: var(--ink-soft);
  margin-left: 0.4em;
}

footer.site-footer {
  margin-top: 3.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-soft);
}

@media (max-width: 480px) {
  img.portrait { float: none; display: block; margin: 0 0 1.25rem 0; width: 130px; height: 130px; }
  body { font-size: 17px; }
  .wrap { padding: 3rem 1.25rem 4rem; }
  ul.news-list li { grid-template-columns: 5.2em 1fr; gap: 0.6rem; }
}