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

:root {
  --ink: #111;
  --ink-mid: #555;
  --ink-light: #999;
  --bg: #fafaf8;
  --rule: #ddd;
  --accent: #2a5caa;
  --accent-hover: #1a3d7a;
  --sidebar-w: 240px;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 52px;
}

.site-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
}

nav a {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--ink-mid);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-left: 1.8rem;
  transition: color 0.15s;
  padding-bottom: 2px;
}

nav a:hover { color: var(--ink); }
nav a.active {
  color: var(--ink);
  border-bottom: 1.5px solid var(--ink);
}

/* ── Shell ── */
.shell {
  display: flex;
  min-height: calc(100vh - 52px);
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Sidebar ── */
aside {
  width: var(--sidebar-w);
  flex-shrink: 0;
  padding: 2.5rem 2rem 2.5rem 0;
  position: sticky;
  top: 52px;
  height: calc(100vh - 52px);
  overflow-y: auto;
  border-right: 1px solid var(--rule);
}

aside img {
  width: 100%;
  max-width: 160px;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: 3px;
  display: block;
  margin-bottom: 1.2rem;
  filter: grayscale(8%);
}

.name {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.3rem;
}

.title-line {
  font-size: 0.78rem;
  color: var(--ink-mid);
  font-weight: 300;
  line-height: 1.5;
  margin-bottom: 1.4rem;
}

.contact-block {
  font-size: 0.8rem;
  color: var(--ink-mid);
  line-height: 1.7;
  margin-bottom: 1.4rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--rule);
}

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

.sidebar-links { list-style: none; }
.sidebar-links li { margin-bottom: 0.4rem; }
.sidebar-links a {
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.15s;
}
.sidebar-links a:hover { color: var(--accent-hover); text-decoration: underline; }
.sidebar-links a::before { content: '↗'; font-size: 0.75em; opacity: 0.7; }

/* ── Main ── */
main {
  flex: 1;
  padding: 2.5rem 0 4rem 2.5rem;
  min-width: 0;
}

/* ── Bio ── */
.bio {
  max-width: 640px;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}

.bio p { font-weight: 300; color: #222; }
.bio p + p { margin-top: 0.8rem; }
.bio a { color: var(--accent); text-decoration: none; }
.bio a:hover { text-decoration: underline; }

/* ── Highlight cards (about page) ── */
.about-highlights { margin-bottom: 3rem; }

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 640px;
}

.highlight-card {
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1rem 1.1rem;
  background: #fff;
}

.highlight-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-light);
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.highlight-value {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.highlight-sub {
  font-size: 0.75rem;
  color: var(--ink-mid);
  font-weight: 300;
}

/* ── Section heads ── */
.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
}

.see-all {
  font-size: 0.78rem;
  color: var(--accent);
  text-decoration: none;
  margin-left: auto;
}
.see-all:hover { text-decoration: underline; }

/* ── Publication items ── */
.recent-pubs { max-width: 680px; }

.pub {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 0 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #eee;
}

.pub:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.pub-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-light);
  padding-top: 0.2rem;
  text-align: right;
}

.pub-body { min-width: 0; }

.pub-title {
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 0.3rem;
  font-size: 0.93rem;
}

.pub-authors {
  font-size: 0.81rem;
  color: var(--ink-mid);
  font-weight: 300;
  line-height: 1.5;
  margin-bottom: 0.2rem;
}

.pub-authors strong { color: var(--ink); font-weight: 500; }

.pub-venue {
  font-size: 0.79rem;
  color: var(--ink-mid);
  font-style: italic;
  margin-bottom: 0.45rem;
}

.pub-links { display: flex; flex-wrap: wrap; gap: 0.45rem; }

.pub-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  text-decoration: none;
  padding: 2px 7px;
  border: 1px solid #c2d4ef;
  border-radius: 2px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.pub-link:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Publications page ── */
.pub-note {
  font-size: 0.78rem;
  color: var(--ink-light);
  margin-bottom: 2rem;
}

.pub-group { margin-bottom: 2.8rem; max-width: 680px; }

.pub-group-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-light);
  font-weight: 500;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

/* ── Mobile ── */
@media (max-width: 700px) {
  .shell { flex-direction: column; padding: 0 1rem; }

  aside {
    width: 100%;
    position: static;
    height: auto;
    padding: 2rem 0 1.5rem;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: flex-start;
  }

  aside img { max-width: 90px; margin-bottom: 0; }
  .aside-text { flex: 1; min-width: 160px; }

  main { padding: 2rem 0 3rem; }
  header { padding: 0 1rem; }

  .highlight-grid { grid-template-columns: 1fr; }
  .pub { grid-template-columns: 30px 1fr; gap: 0 0.6rem; }
}