:root{
  --text: #1f2328;
  --text-secondary: #59636e;
  --link: #0969da;
  --link-hover: #0550ae;
  --border: #d1d9e0;
  --bg: #ffffff;
  --bg-subtle: #f6f8fa;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --max: 760px;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a{ color: var(--link); text-decoration: none; }
a:hover{ color: var(--link-hover); text-decoration: underline; }
a:focus-visible, button:focus-visible{ outline: 2px solid var(--link); outline-offset: 2px; }

/* ---------- Nav ---------- */
nav.site-nav{ border-bottom: 1px solid var(--border); }
nav.site-nav .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand{ font-weight: 600; font-size: 15px; color: var(--text); text-decoration: none; }
.brand:hover{ text-decoration: none; color: var(--text); }
.nav-links a{
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-left: 22px;
}
.nav-links a:hover{ color: var(--link); text-decoration: none; }
.nav-links a.active{ color: var(--text); font-weight: 600; }

/* ---------- Main ---------- */
main.wrap{ padding: 48px 24px 88px; }

h1{ font-size: 28px; font-weight: 600; margin: 0 0 8px; line-height: 1.3; }
.subtitle{ color: var(--text-secondary); font-size: 16px; margin: 0 0 22px; max-width: 56ch; }

.meta-line{ font-size: 14px; color: var(--text-secondary); margin-bottom: 38px; }
.meta-line span:not(:last-child)::after{ content: " · "; color: var(--border); }

h2{
  font-size: 20px;
  font-weight: 600;
  margin: 42px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

p{ margin: 0 0 16px; }
p.lede{ color: var(--text); }

ul.plain{ padding-left: 20px; margin: 0 0 16px; }
ul.plain li{ margin-bottom: 11px; }
ul.plain li:last-child{ margin-bottom: 0; }

/* ---------- Path / role entries ---------- */
.role-item{ margin-bottom: 20px; }
.role-item:last-child{ margin-bottom: 0; }
.role-title{ font-weight: 600; font-size: 15.5px; }
.role-meta{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 1px;
}
.role-desc{ font-size: 14.5px; color: var(--text-secondary); margin-top: 4px; max-width: 60ch; }

/* ---------- Publications ---------- */
.pub{ padding: 20px 0; border-bottom: 1px solid var(--border); }
.pub:last-child{ border-bottom: none; }
.pub-title{ font-weight: 600; font-size: 15.5px; margin-bottom: 5px; }
.pub-title a{ color: var(--text); }
.pub-title a:hover{ color: var(--link); }
.pub-authors{ font-size: 13.5px; color: var(--text-secondary); margin-bottom: 4px; }
.pub-authors strong{ color: var(--text); font-weight: 600; }
.pub-venue{ font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); }
.pub-desc{ font-size: 14px; color: var(--text-secondary); margin-top: 8px; max-width: 64ch; }
.pub-desc strong{ color: var(--text); font-weight: 600; }

.note{
  margin-top: 28px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---------- Footer ---------- */
footer.site-footer{ border-top: 1px solid var(--border); }
footer.site-footer .wrap{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  padding-top: 22px;
  padding-bottom: 22px;
}

@media (max-width: 600px){
  nav.site-nav .wrap{
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 14px;
    padding-bottom: 14px;
    gap: 8px;
  }
  .nav-links a{ margin-left: 0; margin-right: 16px; }
  main.wrap{ padding-top: 36px; }
}