/* Fonts are self-hosted (SIL Open Font License), so no visitor data goes to Google */
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("assets/fonts/newsreader.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans-italic.woff2") format("woff2");
}

:root {
  --bg: #fbfaf6;
  --ink: #1e2422;
  --muted: #5f6865;
  --rule: rgba(30, 36, 34, 0.1);
  --accent: #1b6b62;
  --accent-ink: #145249;
  --mark: #d6ebe5;

  --serif: "Newsreader", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;

  --measure: 860px;
  --ease: cubic-bezier(0.2, 0, 0, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161a19;
    --ink: #e6e9e7;
    --muted: #9aa49f;
    --rule: rgba(230, 233, 231, 0.1);
    --accent: #6fc1b3;
    --accent-ink: #94d6ca;
    --mark: #1f3c37;
  }
  .pub-thumb img { filter: brightness(0.88); }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  transition: color 150ms var(--ease), text-decoration-color 150ms var(--ease);
}
a:hover { color: var(--accent-ink); text-decoration-color: currentColor; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

mark {
  background: linear-gradient(transparent 56%, var(--mark) 56%);
  color: inherit;
  padding: 0 2px;
}

/* header */
.site-header {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 500 20px/1 var(--serif);
  color: var(--ink);
  text-decoration: none;
}
.wordmark svg { width: 24px; height: 24px; flex: none; }
.site-header nav { display: flex; gap: 24px; font-size: 15px; }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); }

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

/* intro */
.intro {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 48px;
  align-items: center;
  padding: 48px 0 64px;
}
h1 {
  font: 500 52px/1.05 var(--serif);
  letter-spacing: -0.01em;
  margin: 0 0 24px;
}
.intro p { margin: 0 0 16px; }
.contact { color: var(--muted); font-size: 15px; margin-top: 24px !important; }
.contact span { margin: 0 8px; }

.portrait { margin: 0; }
.portrait img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

/* sections */
section { scroll-margin-top: 24px; }
section + section { border-top: 1px solid var(--rule); padding-top: 40px; }
h2 {
  font: 500 30px/1.2 var(--serif);
  margin: 0 0 24px;
}

/* shared two-column row: meta on the left, content on the right */
.news li, .pub, .timeline li {
  display: grid;
  grid-template-columns: 156px 1fr;
  gap: 16px;
}
.meta {
  color: var(--muted);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  padding-top: 1px;
}

/* news */
.news { list-style: none; margin: 0 0 40px; padding: 0; }
.news li { padding: 8px 0; }

/* publications */
#publications { padding-bottom: 24px; }
.pub { padding: 16px 0; grid-template-columns: 156px 1fr 184px; }
.pub-thumb { display: block; margin: 4px 0 0 8px; }
.pub-thumb img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  outline: 1px solid var(--rule);
  outline-offset: -1px;
  transition: opacity 150ms var(--ease);
}
.pub-thumb:hover img { opacity: 0.85; }
.pub .meta { color: var(--accent); font-weight: 500; padding-top: 3px; }
.pub h3 {
  font: 500 20px/1.35 var(--serif);
  margin: 0 0 4px;
}
.pub h3 a { color: var(--ink); text-decoration: none; }
.pub h3 a:hover { color: var(--accent); }
.authors, .venue-full { margin: 0; font-size: 15px; color: var(--muted); }
.authors b { color: var(--ink); font-weight: 500; }
.pub-links { margin: 8px 0 0; font-size: 14px; display: flex; gap: 16px; flex-wrap: wrap; }

/* timeline */
.timeline { list-style: none; margin: 0 0 56px; padding: 0; }
.timeline li { padding: 12px 0; }
.timeline b { font-weight: 500; display: block; }
.timeline .where { color: var(--muted); font-size: 15px; }
#education { border-top: 1px solid var(--rule); padding-top: 40px; }
#experience > .timeline:first-of-type { margin-bottom: 40px; }

/* footer */
.site-footer {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 24px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .site-header { padding: 20px 16px; }
  .site-header nav { gap: 16px; }
  main { padding: 0 16px; }
  .intro { grid-template-columns: 1fr; gap: 32px; padding-top: 24px; }
  .portrait { order: -1; max-width: 180px; }
  h1 { font-size: 40px; }
  .news li, .pub, .timeline li { grid-template-columns: 1fr; gap: 4px; }
  .pub-thumb { order: -1; max-width: 240px; margin: 0 0 8px; }
  .site-footer { padding: 24px 16px; }
  .contact { display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .contact span { display: none; }
}