/* Blueprint palette. Change these values to re-theme the whole site; a dark
   variant follows below and is picked up from the reader's system setting.
   --accent-soft is currently unused, kept around for tinted backgrounds. */
:root {
  --paper: #f2f5f8;
  --surface: #ffffff;
  --ink: #12212e;
  --ink-2: #4d5f70;
  --ink-3: #5f7182;
  --rule: #d9e2ea;
  --rule-strong: #c1cfdb;
  --accent: #1d4e89;
  --accent-soft: #dce5ed;
  --on-accent: #ffffff;
  --radius: 8px;
  --measure: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0e151c;
    --surface: #141d26;
    --ink: #e3eaf1;
    --ink-2: #9aabbb;
    --ink-3: #8496a6;
    --rule: #22303c;
    --rule-strong: #334554;
    --accent: #8dbdef;
    --accent-soft: #16283c;
    --on-accent: #0e151c;
  }
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface);
  padding: 10px 16px;
  z-index: 20;
}

.skip:focus { left: 8px; top: 8px; }

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}

.nav-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  border: 0;
}

.nav-name:hover { border: 0; color: var(--accent); }

.nav-links {
  display: flex;
  gap: 20px;
  font-size: 13.5px;
}

.nav-links a { color: var(--ink-2); }

.nav-links a:hover { color: var(--accent); }

.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
}

/* ---------- layout ---------- */

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 56px 24px 96px;
}

section + section { margin-top: 56px; }

.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 18px;
  font-weight: 400;
}

h1, h2, h3 { font-weight: 500; line-height: 1.3; }

p { margin: 0 0 1rem; }

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

.lede {
  font-size: 17px;
  color: var(--ink-2);
  line-height: 1.7;
}

.note {
  font-size: 14px;
  color: var(--ink-3);
}

/* ---------- hero ---------- */

.hero {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.hero-text { flex: 1; min-width: 0; }

.hero h1 {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: 34px;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.hero h1 .cn {
  font-size: 26px;
  color: var(--ink-2);
  margin-left: 8px;
  font-weight: 400;
}

.hero-role {
  font-size: 15px;
  color: var(--ink-2);
  margin: 0 0 16px;
}

.photo {
  width: 132px;
  height: 132px;
  flex: none;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface);
  border: 1px solid var(--rule);
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 14px;
  margin-top: 4px;
}

/* ---------- theme cards ---------- */

.themes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.theme {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 18px 20px 16px;
  display: block;
  color: inherit;
}

.theme:hover {
  border-color: var(--rule-strong);
  border-bottom-color: var(--rule-strong);
}

.theme-tag {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--on-accent);
  background: var(--accent);
  padding: 3px 8px;
  border-radius: 4px;
}

.theme h3 {
  font-size: 16px;
  margin: 12px 0 4px;
}

.theme p {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.6;
  margin: 0;
}

/* ---------- lists ---------- */

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

.plain > li {
  padding: 9px 0;
  border-top: 1px solid var(--rule);
  font-size: 15px;
}

.plain > li:first-child { border-top: 0; padding-top: 0; }

.stack { margin: 0; padding-left: 1.1rem; }

.stack li { margin-bottom: 6px; }

.year-row {
  display: flex;
  gap: 18px;
  font-size: 15px;
  padding: 9px 0;
  border-top: 1px solid var(--rule);
}

.year-row:first-of-type { border-top: 0; }

.year-row .y {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  color: var(--ink-3);
  flex: none;
  width: 52px;
  padding-top: 2px;
}

/* ---------- publications ---------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.filter {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 13px;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 20px;
  padding: 5px 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter:hover { color: var(--ink); border-color: var(--ink-3); }

.filter[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.result-count {
  font-size: 13px;
  color: var(--ink-3);
  margin: 0 0 28px;
  min-height: 20px;
}

.year-block { margin-bottom: 36px; }

.year-block h2 {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-weight: 400;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

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

.pub {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 6px;
}

.venue {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: 2px 7px;
}

.tier {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  color: var(--ink-3);
}

.theme-pill {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--on-accent);
  background: var(--accent);
  border-radius: 4px;
  padding: 2px 7px;
  margin-left: auto;
}

.pub-title {
  font-size: 15px;
  line-height: 1.5;
  margin: 0 0 3px;
  color: var(--ink);
}

.pub-authors {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0;
}

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

.pub-extra {
  font-size: 12.5px;
  color: var(--ink-3);
  margin: 4px 0 0;
}

.pub[hidden] { display: none; }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--ink-3);
  padding: 24px;
  text-align: center;
}

/* ---------- responsive ---------- */

@media (max-width: 620px) {
  main { padding: 40px 20px 72px; }
  .nav-inner { padding: 12px 20px; }
  .nav-links { gap: 16px; font-size: 13px; }
  .hero { flex-direction: column-reverse; align-items: flex-start; gap: 20px; }
  .hero h1 { font-size: 28px; }
  .hero h1 .cn { font-size: 22px; }
  .photo { width: 104px; height: 104px; }
  .theme-pill { margin-left: 0; }
  .year-row { flex-direction: column; gap: 2px; }
  .year-row .y { width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ---------- markdown-authored content ---------- */

.prose > h2 {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 400;
  margin: 56px 0 18px;
}

.prose > h2:first-child { margin-top: 0; }

.prose > h3 {
  font-size: 16px;
  margin: 28px 0 6px;
}

.prose > ul {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
}

.prose > ul > li { margin-bottom: 6px; }

.prose > ul.plain {
  padding-left: 0;
  list-style: none;
}

.prose > ul.plain > li {
  padding: 9px 0;
  border-top: 1px solid var(--rule);
  margin-bottom: 0;
  font-size: 15px;
}

.prose > ul.plain > li:first-child { border-top: 0; padding-top: 0; }

.prose > dl {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  margin: 0 0 1rem;
}

.prose > dl > dt {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  color: var(--ink-3);
  padding: 9px 18px 9px 0;
  border-top: 1px solid var(--rule);
}

.prose > dl > dd {
  margin: 0;
  font-size: 15px;
  padding: 9px 0;
  border-top: 1px solid var(--rule);
}

.prose > dl > dt:first-of-type,
.prose > dl > dt:first-of-type + dd { border-top: 0; }

.prose > blockquote {
  margin: 0 0 1rem;
  padding: 0 0 0 16px;
  border-left: 2px solid var(--rule-strong);
  color: var(--ink-2);
}

@media (max-width: 620px) {
  .prose > dl { grid-template-columns: minmax(0, 1fr); }
  .prose > dl > dt { padding-bottom: 0; }
  .prose > dl > dd { padding-top: 2px; border-top: 0; }
  .prose > dl > dt:first-of-type + dd { border-top: 0; }
}